CTAOS v6

#RESOURCES/kb.txt

@@ -0,0 +1,635 @@
+================================================================
+IBM PC KEYBOARD INFORMATION FOR SOFTWARE DEVELOPERS
+================================================================
+Your host: Chris Giese
+http://www.execpc.com/~geezer/os
+
+Distribute freely. Last revised on Jan 3, 2002
+Sources:
+	PORTS.A of Ralf Brown's interrupt list collection
+	repairfaq.org keyboard FAQ(doesn't appear to exsist)
+	Linux source code
+Test hardware:
+	New Samsung KB3T001SAXAA 104-key keyboard
+	Old Maxi 2186035-00-21 101-key keyboard
+
+NO WARRANTY. NO GUARANTEE. I have tried to make this information
+accurate. I don't know if I succeeded. Corrections or additional
+information would be welcome.
+
+This is a plain-text document. If you use a word-processor to view
+it, use a fixed-pitch font (like Courier) so columnar data and
+ASCII art lines up properly.
+
+Lessons learned:
+- Both the 8048 MCU in the keyboard and the 8042 controller
+  on the motherboard accept command bytes.
+- There is a bit (KCC) in the poorly-named "Command Byte" which
+  seems to enable AT-to-XT scancode conversion (scancode set 2
+  to scancode set 1). After booting DOS, my keyboard uses
+  scancode set 2 with this conversion bit turned on. If I turn
+  the bit off and switch to scancode set 1, operation remains
+  the same.
+- Scancode set 3 is probably the most elegant, in that it returns
+  a one-byte make code for _every_ key. Unfortunately, not all
+  keyboards support it.
+- The scancodes of some keys depend on the internal num lock state
+  of the keyboard.
+
+================================================================
+KEYBOARD I/O REGISTERS ON THE PC
+================================================================
+60h     data
+64h     command (write)
+64h     Status (read)
+
+Bits in Status register (names from Linux source)
+    b7  PERR	parity error in data received from keyboard
+    b6  GTO	receive timeout
+    b5          transmit timeout (or PS/2 mouse?)
+    b4          keyboard is locked
+    b3          0=60h was the port last accessed, 1=61h was last (?)
+    b2          System Flag status: 0=power-up/reset, 1=selftest OK (?)
+    b1  IBF	input buffer full (data from host to keyboard)
+    b0	OBF	output buffer full (data from keyboard to host)
+
+Bits in Output Port of 8042 chip (Table P0383 in PORTS.A)
+The Output Port is written by controller command D1h,
+and read by controller command D0h
+    b7          keyboard data output
+    b6          keyboard clock output
+    b5          input buffer NOT full
+    b4          output buffer NOT empty
+    b3          (varies)
+    b2          (varies)
+    b1          A20 gate
+    b0          system reset (THIS BIT SHOULD ALWAYS BE SET TO 1)
+
+Bits in Input Port of 8042 chip
+The Input Port is read by controller command C0h
+    b7          keyboard NOT locked
+    b6-b0       (varies)
+
+Bits in "Command Byte" (confusing name; from Table P0404 in PORTS.A)
+The "Command Byte" is written by controller command 60h
+and read by controller command 20h
+(names from Linux source)
+    b7          (reserved)
+    b6  KCC     convert set 2 scancodes to set 1 ("IBM PC compatibility mode")
+    b5  DMS	disables PS/2 mouse when set
+    b4          disables keyboard when set
+    b3          ignore keyboard lock switch when set
+    b2  SYS	System Flag (same as b2 in Status register, it seems)
+    b1          enables IRQ12 from PS/2 mouse when set
+    b0	EKI	enables IRQ1 on keyboard output buffer full
+
+Result Byte for interface self-tests (Table P0406 in PORTS.A)
+Returned by controller commands A9h or ABh
+    0           no error
+    1           clock line stuck low
+    2           clock line stuck high
+    3           data line stuck low
+    4           data line stuck high
+
+================================================================
+CONTROLLER COMMANDS (from Table P0401 of PORTS.A)
+================================================================
+Before writing each byte of these commands to port 64h,
+poll the status register (port 60h) until bit b1=0.
+
+20h-2Fh     	reads byte with address=lower 5 bits of command
+                  The byte at address 0 is the "Command Byte".
+60h-7Fh nn  	writes byte nn to address=lower 5 bits of command
+                  The byte at address 0 is the "Command Byte".
+A7h             disables PS/2 mouse port (MCA only?)
+A8h             enables PS/2 mouse port (MCA only?)
+A9h             self-test mouse interface, returns Result Byte (see above)
+AAh             self-test controller; returns 55h if success, FCh if failure
+ABh             self-test keyboard interface, returns Result Byte (see above)
+ADh             disables keyboard (sets b4 of "Command Byte")
+AEh             enables keyboard (clears b4 of "Command Byte")
+C0h         	reads Input Port
+D0h         	reads Output Port
+D1h nn      	writes Output Port
+                  Important: bit 0 (system reset) should always be set here,
+                  as the system may hang constantly. To reset the PC, pulse
+                  b0 of the Output Port with command FEh instead.
+DDh             disable A20 (Not all systems support this byte)
+DFh             enable A20 (Not all systems support this byte)
+E0h         	read test inputs. return value=
+		    b1      kbd data
+		    b0      kbd clock
+EDh nn      	write LEDs. nn=
+		    b2      Caps Lock
+		    b1      Num Lock
+		    b0      Scroll Lock
+F0h-FFh     	pulse bit(s) of Output Port low for 6 microseconds.
+                  If b0-b3 of the command is low, the corresponding bit
+                  in the Output Port will be pulsed low. b0=system reset,
+                  and should ALWAYS be PULSED low, never set low constantly.
+
+================================================================
+KEYBOARD COMMANDS (from Table P0386 of PORTS.A)
+================================================================
+Before writing each byte of these commands to port 60h,
+poll the status register (port 60h) until bit b1=0.
+Unless otherwise noted: each command responds with FAh (ACKnowledge)
+or FEh (Resend) after receiving each byte of the command.
+
+EDh nn      	write LEDs, as above
+EEh         	echo, keyboard responds with EEh
+EFh         	no-operation (reserved)
+F0h nn      	selects scancode set nn=1-3 or 0 to return current set
+F2h         	read ID. Keyboard responds with ACK (FAh) and two optional
+		ID bytes:
+		    (none)	AT keyboard
+		    83h ABh   	(?)
+		    ABh 41h   	MF2, translation mode
+		    ABh 83h   	MF2, pass-through mode
+F3h nn          set typematic (auto-repeat) rate/delay. nn=
+		    b7      unused
+		    b6..5   Repeat delay (00=250 msec ... 11=1000msec)
+                    b4..0   Repeat rate (00000=30 Hz ... 11111=2 Hz).
+F4h         	clears output buffer, enables keyboard
+F5h             disables keyboard, resets to defaults
+F6h             sets keyboard defaults
+
+F7h             make all keys typematic (auto-repeat)   [*]
+F8h             make all keys make-break                [*]
+F9h             make all keys make-only                 [*]
+FAh             make all keys typematic and make-break  [*]
+FBh nn          make one key typematic                  [*]
+FCh nn          make one key make-break                 [*]
+FDh nn          make one key make-only                  [*]
+                        [*] these commands may work only for
+                            scancode set 3; I'm not sure.
+FEh         	resend previous scan code
+FFh         	reset keyboard CPU, do power-on self-test, return
+		self-test result byte
+
+non-key status bytes
+--------------------
+00h    Key detection error or buffer full.
+AAh    Power-on/reset diagnostics successful.
+E0h    (scancode sets 1 and 2) Prefix byte for "gray" keys
+        (keys not on original 83-/84-key keyboard)
+EEh    Sent in response to ECHO command.
+F0h    (scancode sets 2 and 3) Prefix byte for break codes.
+FAh    ACKknowledge; response to most commands.
+FCh    Diagnostics failed (MF keyboard).
+FDh    Diagnostics failed (AT keyboard).
+        The keyboard stops scanning and waits for next command
+        after returning code FCh or FDh
+FEh    Last command was invalid or had parity error; resend it.
+FFh    Key detection error or buffer full.
+
+====================================================================
+SCANCODES FOR SCANCODE SET 1 (XT)
+====================================================================
+US 104-key keyboard, set 1 scancodes
+
+
+"Make" code is generated when key is pressed.
+"Break" code is generated when key is released.
+Hex value of make code for each key is shown.
+
+Most keys:
+	one-byte make code	= nn
+	one-byte repeat code	= nn
+	one-byte break code	= 80h + nn
+
+"Gray" keys (not on original 84-key keyboard):
+	two-byte make code	= E0nn
+	two-byte repeat code	= E0nn
+	two-byte break code	= E0 followed by 80h + nn
+
+"Gray" keys noted by [1] are NumLock-sensitive.
+When the keyboard's internal NumLock is active:
+	four-byte make code	= E02AE0nn
+	two-byte repeat code	= E0nn
+	four-byte break code	= E0 followed by 80h + nn followed by E0AA
+
+ ____    ___________________    ___________________    ___________________
+|    |  |    |    |    |    |  |    |    |    |    |  |    |    |    |    |
+|Esc |  |F1  |F2  |F3  |F4  |  |F5  |F6  |F7  |F8  |  |F9  |F10 |F11 |F12 |
+|    |  |    |    |    |    |  |    |    |    |    |  |    |    |    |    |
+|  01|  |  3B|  3C|  3D|  3E|  |  3F|  40|  41|  42|  |  43|  44|  57|  58|
+|____|  |____|____|____|____|  |____|____|____|____|  |____|____|____|____|
+
+ __________________________________________________________________________
+|    |    |    |    |    |    |    |    |    |    |    |    |    |    |    |
+|~   |!   |@   |#   |$   |%   |^   |&   |*   |(   |)   |_   |+   ||   |bksp|
+|`   |1   |2   |3   |4   |5   |6   |7   |8   |9   |0   |-   |=   |\   |    |
+|  29|  02|  03|  04|  05|  06|  07|  08|  09|  0A|  0B|  0C|  0D|  2B|  0E|
+|____|____|____|____|____|____|____|____|____|____|____|____|____|____|____|
+|    |    |    |    |    |    |    |    |    |    |    |    |    |         |
+|Tab |Q   |W   |E   |R   |T   |Y   |U   |I   |O   |P   |{   |}   |         |
+|    |    |    |    |    |    |    |    |    |    |    |[   |]   |         |
+|  0F|  10|  11|  12|  13|  14|  15|  16|  17|  18|  19|  1A|  1B|         |
+|____|____|____|____|____|____|____|____|____|____|____|____|____|         |
+|    |    |    |    |    |    |    |    |    |    |    |    |              |
+|Caps|A   |S   |D   |F   |G   |H   |J   |K   |L   |:   |"   |     Enter    |
+|    |    |    |    |    |    |    |    |    |    |;   |'   |              |
+|  3A|  1E|  1F|  20|  21|  22|  23|  24|  25|  26|  27|  28|            1C|
+|____|____|____|____|____|____|____|____|____|____|____|____|______________|
+|         |    |    |    |    |    |    |    |    |    |    |              |
+| L Shift |Z   |X   |C   |V   |B   |N   |M   |<   |>   |?   |   R Shift    |
+|         |    |    |    |    |    |    |    |,   |.   |/   |              |
+|       2A|  2C|  2D|  2E|  2F|  30|  31|  32|  33|  34|  35|            36|
+|_________|____|____|____|____|____|____|____|____|____|____|______________|
+|       |       |       |                  |       |       |       |       |
+|L Ctrl | L win | L Alt |       space      | R Alt | R win | menu  |R Ctrl |
+|       |[1]    |       |                  |       |[1]    |[1]    |       |
+|     1D|   E05B|     38|                39|   E038|   E05C|   E05D|   E01D|
+|_______|_______|_______|__________________|_______|_______|_______|_______|
+
+
+[2] For PrintScreen/SysRq key: make code = E02AE037,
+repeat code = E037, break code = E0B7E0AA
+
+[3] The Pause/Break key does not repeat, and it does not
+generate a break code. Its make code is E11D45E19DC5
+
+ ____ ____ ____
+|    |    |    |
+|Prt |Scrl|Paus|
+|Scrn|Lock|Brk |
+| [2]|  46| [3]|
+|____|____|____|
+
+ ____ ____ ____   ____ ____ ____ ____
+|    |    |    | |    |    |    |    |
+|Ins |Home|PgUp| |Num |/   |*   |-   |
+|[1] |[1] |[1] | |Lock|    |    |    |
+|E052|E047|E049| |  45|E035|  37|  4A|
+|____|____|____| |____|____|____|____|
+|    |    |    | |    |    |    |    |
+|Del |End |PgDn| |7   |8   |9   |    |
+|[1] |[1] |[1] | |Home|(U) |PgUp|    |
+|E053|E04F|E051| |  47|  48|  49|    |
+|____|____|____| |____|____|____|    |
+		 |    |    |    |+   |
+		 |4   |5   |6   |    |
+		 |(L) |    |(R) |    |
+		 |  4B|  4C|  4D|  4E|
+      ____       |____|____|____|____|
+     |    |      |    |    |    |    |
+     |(U) |      |1   |2   |3   |    |
+     |[1] |      |End |(D) |PgDn|    |
+     |E048|      |  4F|  50|  51|Ent |
+ ____|____|____  |____|____|____|    |
+|    |    |    | |         |    |    |
+|(L) |(D) |(R) | |0        |.   |    |
+|[1] |[1] |[1] | |Ins      |Del |    |
+|E04B|E050|E04D| |       52|  53|E01C|
+|____|____|____| |_________|____|____|
+
+
+code key        code key        code key        code key
+---- ---        ---- ---        ---- ---        ---- ---
+01   Esc        0F   Tab        1D   L Ctrl     2B   \|
+02   1!         10   Q          1E   A          2C   Z
+03   2"         11   W          1F   S          2D   X
+04   3#         12   E          20   D          2E   C
+05   4$         13   R          21   F          2F   V
+06   5%         14   T          22   G          30   B
+07   6^         15   Y          23   H          31   N
+08   7&         16   U          24   J          32   M
+09   8*         17   I          25   K          33   ,<
+0A   9(         18   O          26   L          34   .>
+0B   0)         19   P          27   ;:         35   /?
+0C   -_         1A   [{         28   '"         36   R Shift
+0D   =+         1B   ]}         29   `~         37   *
+0E   BackSpace  1C   Enter      2A   L Shift    38   L Alt
+
+code key        code key        code key        code key
+---- ---        ---- ---        ---- ---        ---- ---
+39   Space      41   F7         49   PageUp 9   51   PageDown 3
+3A   CapsLock   42   F8         4A   -          52   Insert 0
+3B   F1         43   F9         4B   (left) 4   53   Del .
+3C   F2         44   F10        4C   5
+3D   F3         45   NumLock    4D   (right) 6  57   F11
+3E   F4         46   ScrollLock 4E   +          58   F12
+3F   F5         47   Home  7    4F   End 1
+40   F6         48   (up) 8     50   (down) 2
+
+
+
+code            key
+----            ---
+E01C            Enter (on numeric keypad)
+E01D            R Ctrl
+E02A            make code prefix for keyboard internal numlock
+E02AE037        PrintScreen make code
+E035            /
+E037            PrintScreen repeat code
+E038            R Alt
+E047            Home
+E048            (up)
+E049            PageUp
+E04B            (left)
+E04D            (right)
+E04F            End
+E050            (down)
+E051            PageDown
+E052            Insert
+E053            Del
+E05B            L Win
+E05C            R Win
+E05D            Menu
+E0AA            break code suffix for keyboard internal numlock
+E0B7E0AA        PrintScreen break code
+E11D45E19DC5    Pause
+
+====================================================================
+SCANCODES FOR SCANCODE SET 2 (AT)
+====================================================================
+US 104-key keyboard, set 2 scancodes,
+8042 AT-to-XT scancode translation OFF
+
+"Make" code is generated when key is pressed.
+"Break" code is generated when key is released.
+Hex value of make code for each key is shown.
+
+Most keys:
+	one-byte make code	= nn
+	one-byte repeat code	= nn
+	two-byte break code	= F0nn
+
+"Gray" keys (not on original 84-key keyboard):
+	two-byte make code	= E0nn
+	two-byte repeat code	= E0nn
+	three-byte break code	= E0F0nn
+
+"Gray" keys noted by [1] are NumLock-sensitive.
+When the keyboard's internal NumLock is active:
+	four-byte make code	= E012E0nn
+	two-byte repeat code	= E0nn
+	six-byte break code	= E0F0nnE0F012
+
+ ____    ___________________    ___________________    ___________________
+|    |  |    |    |    |    |  |    |    |    |    |  |    |    |    |    |
+|Esc |  |F1  |F2  |F3  |F4  |  |F5  |F6  |F7  |F8  |  |F9  |F10 |F11 |F12 |
+|    |  |    |    |    |    |  |    |    |    |    |  |    |    |    |    |
+|  76|  |  05|  06|  04|  0C|  |  03|  0B|  83|  0A|  |  01|  09|  78|  07|
+|____|  |____|____|____|____|  |____|____|____|____|  |____|____|____|____|
+
+ __________________________________________________________________________
+|    |    |    |    |    |    |    |    |    |    |    |    |    |    |    |
+|~   |!   |@   |#   |$   |%   |^   |&   |*   |(   |)   |_   |+   ||   |bksp|
+|`   |1   |2   |3   |4   |5   |6   |7   |8   |9   |0   |-   |=   |\   |    |
+|  0E|  16|  1E|  26|  25|  2E|  36|  3D|  3E|  46|  45|  4E|  55|  5D|  66|
+|____|____|____|____|____|____|____|____|____|____|____|____|____|____|____|
+|    |    |    |    |    |    |    |    |    |    |    |    |    |         |
+|Tab |Q   |W   |E   |R   |T   |Y   |U   |I   |O   |P   |{   |}   |         |
+|    |    |    |    |    |    |    |    |    |    |    |[   |]   |         |
+|  0D|  15|  1D|  24|  2D|  2C|  35|  3C|  43|  44|  4D|  54|  5B|         |
+|____|____|____|____|____|____|____|____|____|____|____|____|____|         |
+|    |    |    |    |    |    |    |    |    |    |    |    |              |
+|Caps|A   |S   |D   |F   |G   |H   |J   |K   |L   |:   |"   |     Enter    |
+|    |    |    |    |    |    |    |    |    |    |;   |'   |              |
+|  58|  1C|  1B|  23|  2B|  34|  33|  3B|  42|  4B|  4C|  52|            5A|
+|____|____|____|____|____|____|____|____|____|____|____|____|______________|
+|         |    |    |    |    |    |    |    |    |    |    |              |
+| L Shift |Z   |X   |C   |V   |B   |N   |M   |<   |>   |?   |   R Shift    |
+|         |    |    |    |    |    |    |    |,   |.   |/   |              |
+|       12|  1A|  22|  21|  2A|  32|  31|  3A|  41|  49|  4A|            59|
+|_________|____|____|____|____|____|____|____|____|____|____|______________|
+|       |       |       |                  |       |       |       |       |
+|L Ctrl | L win | L Alt |       space      | R Alt | R win | menu  |R Ctrl |
+|       |[1]    |       |                  |       |[1]    |[1]    |       |
+|     14|   E01F|     11|                29|   E011|   E027|   E02F|   E014|
+|_______|_______|_______|__________________|_______|_______|_______|_______|
+
+
+[2] For PrintScreen/SysRq key: make code = E012E07C,
+repeat code = E07C, break code = E0F07CE0F012
+
+[3] The Pause/Break key does not repeat, and it does not
+generate a break code. Its make code is E11477E1F014F077
+
+ ____ ____ ____
+|    |    |    |
+|Prt |Scrl|Paus|
+|Scrn|Lock|Brk |
+| [2]|  7E| [3]|
+|____|____|____|
+
+ ____ ____ ____   ____ ____ ____ ____
+|    |    |    | |    |    |    |    |
+|Ins |Home|PgUp| |Num |/   |*   |-   |
+|[1] |[1] |[1] | |Lock|    |    |    |
+|E070|E06C|E07D| |  77|E04A|  7C|  7B|
+|____|____|____| |____|____|____|____|
+|    |    |    | |    |    |    |    |
+|Del |End |PgDn| |7   |8   |9   |    |
+|[1] |[1] |[1] | |Home|(U) |PgUp|    |
+|E071|E069|E07A| |  6C|  75|  7D|    |
+|____|____|____| |____|____|____|    |
+                 |    |    |    |+   |
+                 |4   |5   |6   |    |
+		 |(L) |    |(R) |    |
+                 |  6B|  73|  74|  79|
+      ____       |____|____|____|____|
+     |    |      |    |    |    |    |
+     |(U) |      |1   |2   |3   |    |
+     |[1] |      |End |(D) |PgDn|    |
+     |E075|      |  69|  72|  7A|Ent |
+ ____|____|____  |____|____|____|    |
+|    |    |    | |         |    |    |
+|(L) |(D) |(R) | |0        |.   |    |
+|[1] |[1] |[1] | |Ins      |Del |    |
+|E06B|E072|E074| |       70|  71|E05A|
+|____|____|____| |_________|____|____|
+
+
+code key        code key        code key        code key
+---- ---        ---- ---        ---- ---        ---- ---
+01   F9                                         66   BackSpace
+                21   C          41   ,<
+03   F5         22   X          42   K          69   End 1
+04   F3         23   D          43   I
+05   F1         24   E          44   O          6B   (left) 4
+06   F2         25   4$         45   0)         6C   Home 7
+07   F12        26   3#         46   9(
+                                                70   Ins 0
+09   F10        29   Space      49   .>         71   Del .
+0A   F8         2A   V          4A   /?         72   (down) 2
+0B   F6         2B   F          4B   L          73   5
+0C   F4         2C   T          4C   ;:         74   (right) 6
+0D   Tab        2D   R          4D   P          75   (up) 8
+0E   `~         2E   5%         4E   -_         76   Esc
+                                                77   NumLock
+11   L Alt      31   N          52   '"         78   F11
+12   L Shift    32   B                          79   +
+                33   H          54   [{         7A   PageDown 3
+14   L Ctrl     34   G          55   =+         7B   -
+15   Q          35   Y                          7C   *
+16   1!         36   6^         58   CapsLock   7D   PageUp 9
+                                59   R Shift    7E   ScrollLock
+1A   Z          3A   M          5A   Enter
+1B   S          3B   J          5B   ]}         83   F7
+1C   A          3C   U
+1D   W          3D   7&         5D   \|
+1E   2@         3E   8*
+
+code            key
+----            ---
+E011            R Alt
+E012E07C        PrintScreen make code
+E014            R Ctrl
+E01F            L Win
+E027            R Win
+E02F            Menu
+E04A            /
+E05A            Enter (on numeric keypad)
+E069            End
+E06B            Left
+E06C            Home
+E070            Ins
+E071            Del
+E072            (down)
+E074            (right)
+E075            (up)
+E07A            PageDown
+E07C            PrintScreen repeat code
+E07D            PageUp
+E0F07CE0F012    PrintScreen break code
+E11477E1F014F077 Pause
+
+====================================================================
+SCANCODES FOR SCANCODE SET 3
+====================================================================
+US 104-key keyboard, set 3 scancodes
+
+
+"Make" code is generated when key is pressed.
+"Break" code is generated when key is released.
+Hex value of make code for each key is shown.
+
+All keys:
+	one-byte make code	= nn
+	one-byte repeat code	= nn
+	two-byte break code	= F0nn
+
+When operating in scancode set 3, the keyboard
+does not maintain an internal NumLock state.
+
+
+
+
+
+
+
+
+
+ ____    ___________________    ___________________    ___________________
+|    |  |    |    |    |    |  |    |    |    |    |  |    |    |    |    |
+|Esc |  |F1  |F2  |F3  |F4  |  |F5  |F6  |F7  |F8  |  |F9  |F10 |F11 |F12 |
+|    |  |    |    |    |    |  |    |    |    |    |  |    |    |    |    |
+|  08|  |  07|  0F|  17|  1F|  |  27|  2F|  37|  3F|  |  47|  4F|  56|  5E|
+|____|  |____|____|____|____|  |____|____|____|____|  |____|____|____|____|
+
+ __________________________________________________________________________
+|    |    |    |    |    |    |    |    |    |    |    |    |    |    |    |
+|~   |!   |@   |#   |$   |%   |^   |&   |*   |(   |)   |_   |+   ||   |bksp|
+|`   |1   |2   |3   |4   |5   |6   |7   |8   |9   |0   |-   |=   |\   |    |
+|  0E|  16|  1E|  26|  25|  2E|  36|  3D|  3E|  46|  45|  4E|  55|  5C|  66|
+|____|____|____|____|____|____|____|____|____|____|____|____|____|____|____|
+|    |    |    |    |    |    |    |    |    |    |    |    |    |         |
+|Tab |Q   |W   |E   |R   |T   |Y   |U   |I   |O   |P   |{   |}   |         |
+|    |    |    |    |    |    |    |    |    |    |    |[   |]   |         |
+|  0D|  15|  1D|  24|  2D|  2C|  35|  3C|  43|  44|  4D|  54|  5B|         |
+|____|____|____|____|____|____|____|____|____|____|____|____|____|         |
+|    |    |    |    |    |    |    |    |    |    |    |    |              |
+|Caps|A   |S   |D   |F   |G   |H   |J   |K   |L   |:   |"   |     Enter    |
+|    |    |    |    |    |    |    |    |    |    |;   |'   |              |
+|  14|  1C|  1B|  23|  2B|  34|  33|  3B|  42|  4B|  4C|  52|            5A|
+|____|____|____|____|____|____|____|____|____|____|____|____|______________|
+|         |    |    |    |    |    |    |    |    |    |    |              |
+| L Shift |Z   |X   |C   |V   |B   |N   |M   |<   |>   |?   |   R Shift    |
+|         |    |    |    |    |    |    |    |,   |.   |/   |              |
+|       12|  1A|  22|  21|  2A|  32|  31|  3A|  41|  49|  4A|            59|
+|_________|____|____|____|____|____|____|____|____|____|____|______________|
+|       |       |       |                  |       |       |       |       |
+|L Ctrl | L win | L Alt |       space      | R Alt | R win | menu  |R Ctrl |
+|       |       |       |                  |       |       |       |       |
+|     11|     8B|     19|                29|     39|     8C|     8D|     58|
+|_______|_______|_______|__________________|_______|_______|_______|_______|
+
+
+
+
+
+
+
+
+ ____ ____ ____
+|    |    |    |
+|Prt |Scrl|Paus|
+|Scrn|Lock|Brk |
+|  57|  5F|  62|
+|____|____|____|
+
+ ____ ____ ____   ____ ____ ____ ____
+|    |    |    | |    |    |    |    |
+|Ins |Home|PgUp| |Num |/   |*   |-   |
+|    |    |    | |Lock|    |    |    |
+|  67|  6E|  6F| |  76|  77|  7E|  84|
+|____|____|____| |____|____|____|____|
+|    |    |    | |    |    |    |    |
+|Del |End |PgDn| |7   |8   |9   |    |
+|    |    |    | |Home|(U) |PgUp|    |
+|  64|  65|  6D| |  6C|  75|  7D|    |
+|____|____|____| |____|____|____|    |
+                 |    |    |    |+   |
+                 |4   |5   |6   |    |
+		 |(L) |    |(R) |    |
+                 |  6B|  73|  74|  7C|
+      ____       |____|____|____|____|
+     |    |      |    |    |    |    |
+     |(U) |      |1   |2   |3   |    |
+     |    |      |End |(D) |PgDn|    |
+     |  63|      |  69|  72|  7A|Ent |
+ ____|____|____  |____|____|____|    |
+|    |    |    | |         |    |    |
+|(L) |(D) |(R) | |0        |.   |    |
+|    |    |    | |Ins      |Del |    |
+|  61|  60|  6A| |       70|  71|  79|
+|____|____|____| |_________|____|____|
+
+
+code key        code key        code key        code key
+---- ---        ---- ---        ---- ---        ---- ---
+07   F1         2A   V          4A   /?         6B   (left) 4
+08   Esc        2B   F          4B   L          6C   Home 7
+                2C   T          4C   ;:         6D   PageDown
+0D   Tab        2D   R          4D   P          6E   Home
+0E   `~         2E   5%         4E   -_         6F   PageUp
+0F   F2         2F   F6         4F   F10        70   Ins 0
+                                                71   Del .
+11   L Ctrl     31   N          52   '"         72   (down) 2
+12   L Shift    32   B                          73   5
+                33   H          54   [{         74   (right) 6
+14   CapsLock   34   G          55   =+         75   (up) 8
+15   Q          35   Y          56   F11        76   NumLock
+16   1!         36   6^         57   PrintScr   77   /
+17   F3         37   F7         58   R Ctrl
+                                59   R Shift    79   Enter (on numeric keypad)
+19   L Alt      39   R Alt      5A   Enter      7A   PageDown 3
+1A   Z          3A   M          5B   ]}
+1B   S          3B   J          5C   \|         7C   +
+1C   A          3C   U                          7D   PageUp 9
+1D   W          3D   7&         5E   F12        7E   *
+1E   2@         3E   8*         5F   ScrollLock
+1F   F4         3F   F8         60   (down)     84   -
+                                61   (left)
+21   C          41   ,<         62   Pause      8B   L Win
+22   X          42   K          63   (up)       8C   R Win
+23   D          43   I          64   Del        8D   Menu
+24   E          44   O          65   End
+25   4$         45   0)         66   BackSpace
+26   3#         46   9(         67   Ins
+27   F5         47   F9
+                                69   End 1
+29   Space      49   .>         6A   (right)

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+
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+0 0 0 0 0 0 0

Makefile

@@ -0,0 +1,270 @@
+# User sets these
+CC = gcc
+ASM = nasm
+CURDIR = /media/6C9EE8DF9EE8A336/ctaos
+
+# Other parameters & paths used
+LSCRIPT = SysCore/objects/linker.ld
+OBJ = Build
+
+CCPARAM = -Wall -O -fstrength-reduce -fomit-frame-pointer -nostdinc -fno-builtin -I./SysCore/include -c
+ASMPARAMobj = -f aout
+ASMPARAMbin = -f bin
+
+#.PHONY : FORCE
+#FORCE :#
+#	@echo -e "\e[1;4m\e[36mC\e[31mT\e[32mA \e[37mOperating System v0.1\e[0"
+
+# Build final floppy image
+ctaos.img : $(OBJ)bootload.bin $(OBJ)stage2.cta $(OBJ)kernel.bin
+	@echo -e "\e[1;32m[ 99%]\e[0m Making floppy image"
+	dd bs=512 count=2880 if=/dev/zero of=ctaos.img
+	mkfs.msdos ctaos.img
+	dd bs=512 count=1 conv=notrunc if=$(OBJ)bootload.bin of=ctaos.img
+	sudo mkdir /media/floppy1/
+	sudo mount -o loop ctaos.img /media/floppy1/
+	sudo cp $(OBJ)stage2.cta /media/floppy1
+	sudo cp $(OBJ)kernel.bin /media/floppy1
+	sudo umount /media/floppy1/
+	sudo rm -r /media/floppy1/
+
+
+# Build Bootloader: Stage 1
+$(OBJ)bootload.bin : SysBoot/stage1/bootload.asm
+	echo -e "\e[1;32m[  4%]\e[0m BOOTLOADER :: stage 1"
+	@$(ASM) $(ASMPARAMbin) SysBoot/stage1/bootload.asm -o $(OBJ)bootload.bin
+
+# Build Bootloader: Stage 2
+$(OBJ)stage2.cta : SysBoot/stage2/stage2.asm \
+		    SysBoot/stage2/a20.inc \
+		    SysBoot/stage2/bootinfo.inc \
+		    SysBoot/stage2/common.inc \
+		    SysBoot/stage2/fat12.inc \
+		    SysBoot/stage2/floppy16.inc \
+		    SysBoot/stage2/gdt.inc \
+		    SysBoot/stage2/getdata.inc \
+		    SysBoot/stage2/memory.inc \
+		    SysBoot/stage2/paging.inc \
+		    SysBoot/stage2/stdio.inc
+	@echo -e "\e[1;32m[  8%]\e[0m BOOTLOADER :: stage 2"
+	@$(ASM) $(ASMPARAMbin) -I./SysBoot/stage2/ -o $(OBJ)stage2.cta SysBoot/stage2/stage2.asm
+
+# Build KERNEL:
+$(OBJ)kernel.bin : $(OBJ)/loader.o \
+		   $(OBJ)/main.o \
+		   $(OBJ)/lib-conio.o \
+		   $(OBJ)/lib-ctype.o \
+		   $(OBJ)/mmngr-asm.o \
+		   $(OBJ)/mmngr-phys.o \
+		   $(OBJ)/mmngr-virt.o \
+		   $(OBJ)/mmngr-lib-pde.o \
+		   $(OBJ)/mmngr-lib-pte.o \
+		   $(OBJ)/shell.o \
+		   $(OBJ)/lib-stdlib.o \
+		   $(OBJ)/lib-string.o \
+		   $(OBJ)/lib-system.o \
+		   $(OBJ)/lib-time.o \
+		   $(OBJ)/driver-bsod.o \
+		   $(OBJ)/driver-cpu.o \
+		   $(OBJ)/driver-dma.o \
+		   $(OBJ)/driver-drivers.o \
+		   $(OBJ)/driver-floppy.o \
+		   $(OBJ)/driver-gdt.o \
+		   $(OBJ)/driver-gdt-asm.o \
+		   $(OBJ)/driver-idt.o \
+		   $(OBJ)/driver-idt-asm.o \
+		   $(OBJ)/driver-isrs.o \
+		   $(OBJ)/driver-isrs-asm.o \
+		   $(OBJ)/driver-irq.o \
+		   $(OBJ)/driver-irq-asm.o \
+		   $(OBJ)/driver-keyboard.o \
+		   $(OBJ)/driver-fat.o \
+		   $(OBJ)/driver-pic.o \
+		   $(OBJ)/driver-pit.o \
+		   $(OBJ)/video-vga03h.o
+	ld -T SysCore/link.ld
+
+# ----------   Kernel components   ---------- #  
+
+# Build assembly sources:
+$(OBJ)/loader.o : SysCore/loader.asm
+	@ echo -e "\e[1;33m[  9%]\e[0m Assembly kernel loader"
+	@$(ASM) $(ASMPARAMobj) -o $(OBJ)/loader.o SysCore/loader.asm
+
+$(OBJ)/driver-gdt-asm.o : SysCore/drivers/cpu/gdt/gdt.asm
+	@echo -e "\e[1;33m[ 10%]\e[0m Assembly code for GDT"
+	@$(ASM) $(ASMPARAMobj) -o $(OBJ)/driver-gdt-asm.o SysCore/drivers/cpu/gdt/gdt.asm
+
+$(OBJ)/driver-idt-asm.o : SysCore/drivers/cpu/idt/idt.asm
+	@echo -e "\e[1;33m[ 11%]\e[0m Assembly code for IDT"
+	@$(ASM) $(ASMPARAMobj) -o $(OBJ)/driver-idt-asm.o SysCore/drivers/cpu/idt/idt.asm
+
+$(OBJ)/driver-irq-asm.o : SysCore/drivers/cpu/irq/irq.asm
+	@echo -e "\e[1;33m[ 12%]\e[0m Assembly code for IRQ"
+	@$(ASM) $(ASMPARAMobj) -o $(OBJ)/driver-irq-asm.o SysCore/drivers/cpu/irq/irq.asm
+
+$(OBJ)/driver-isrs-asm.o : SysCore/drivers/cpu/isrs/isrs.asm
+	@echo -e "\e[1;33m[ 13%]\e[0m Assembly code for ISRs"
+	@$(ASM) $(ASMPARAMobj) -o $(OBJ)/driver-isrs-asm.o SysCore/drivers/cpu/isrs/isrs.asm
+
+
+# Build MAIN function
+$(OBJ)/main.o : SysCore/main.c SysCore/include/string.h \
+		SysCore/include/system.h SysCore/include/conio.h \
+		SysCore/drivers/drivers.h SysCore/include/time.h \
+		SysCore/include/bootinfo.h SysCore/memory/mmngr_ph.h \
+		SysCore/memory/mmngr_vi.h SysCore/video/vga03h.h
+	@echo -e "\e[1;32m[ 14%]\e[0m MAIN C Function"
+	@$(CC) $(CCPARAM) -o $(OBJ)/main.o SysCore/main.c
+
+# Build SHELL
+$(OBJ)/shell.o : SysCore/shell/shell.c SysCore/shell/apps.h \
+		SysCore/include/system.h SysCore/include/conio.h \
+		SysCore/drivers/drivers.h SysCore/include/time.h \
+		SysCore/memory/mmngr_ph.h SysCore/drivers/keyboard.h \
+		SysCore/drivers/cpu/cpu.h SysCore/include/drivers/floppy.h \
+		SysCore/drivers/filesys/fat.h
+	@echo -e "\e[1;34m[ 15%]\e[0m Shell"
+	@$(CC) $(CCPARAM) -o $(OBJ)/shell.o SysCore/shell/shell.c
+
+# Build LIBRARIES
+$(OBJ)/lib-conio.o : SysCore/lib/conio.c \
+		 SysCore/include/drivers/keyboard.h SysCore/include/stdarg.h \
+		 SysCore/include/conio.h SysCore/include/stdlib.h \
+		 SysCore/include/string.h SysCore/include/ctype.h \
+		 SysCore/memory/mmngr_ph.h
+	@echo -e "\e[1;34m[ 16%]\e[0m Libraries: conio"
+	@$(CC) $(CCPARAM) -o $(OBJ)/lib-conio.o SysCore/lib/conio.c
+
+$(OBJ)/lib-ctype.o : SysCore/lib/ctype.c SysCore/include/ctype.h
+	@echo -e "\e[1;34m[ 17%]\e[0m Libraries: ctype"
+	@$(CC) $(CCPARAM) -o $(OBJ)/lib-ctype.o SysCore/lib/ctype.c
+
+$(OBJ)/lib-stdlib.o : SysCore/lib/stdlib.c SysCore/include/stdlib.h \
+		 SysCore/include/ctype.h
+	@echo -e "\e[1;34m[ 18%]\e[0m Libraries: stdlib"
+	@$(CC) $(CCPARAM) -o $(OBJ)/lib-stdlib.o SysCore/lib/stdlib.c
+
+$(OBJ)/lib-string.o : SysCore/lib/string.c SysCore/include/string.h
+	@echo -e "\e[1;32m[ 19%]\e[0m Libraries: string"
+	@$(CC) $(CCPARAM) -o $(OBJ)/lib-string.o SysCore/lib/string.c
+
+$(OBJ)/lib-system.o : SysCore/lib/system.c SysCore/include/system.h
+	@echo -e "\e[1;34m[ 20%]\e[0m Libraries: system"
+	@$(CC) $(CCPARAM) -o $(OBJ)/lib-system.o SysCore/lib/system.c
+
+$(OBJ)/lib-time.o : SysCore/lib/time.c SysCore/include/time.h \
+		    SysCore/include/system.h
+	@echo -e "\e[1;34m[ 21%]\e[0m Libraries: time"
+	@$(CC) $(CCPARAM) -o $(OBJ)/lib-time.o SysCore/lib/time.c
+
+
+# Build Memory Manager
+$(OBJ)/mmngr-asm.o : SysCore/memory/mmngr.asm
+	@echo -e "\e[1;36m[ 22%]\e[0m Memory manager assembly code"
+	@$(ASM) $(ASMPARAMobj) -o $(OBJ)/mmngr-asm.o SysCore/memory/mmngr.asm
+
+$(OBJ)/mmngr-phys.o : SysCore/memory/mmngr_ph.c SysCore/memory/mmngr_ph.h
+	@echo -e "\e[1;36m[ 22%]\e[0m Physical memory manager"
+	@$(CC) $(CCPARAM) -o $(OBJ)/mmngr-phys.o SysCore/memory/mmngr_ph.c
+
+$(OBJ)/mmngr-virt.o : SysCore/memory/mmngr_vi.c SysCore/memory/mmngr_vi.h \
+		      SysCore/memory/mmngr_ph.h
+	@echo -e "\e[1;36m[ 23%]\e[0m Virtual memory manager"
+	@$(CC) $(CCPARAM) -o $(OBJ)/mmngr-virt.o SysCore/memory/mmngr_vi.c
+
+$(OBJ)/mmngr-lib-pde.o : SysCore/memory/lib/pde.c SysCore/memory/lib/pde.h
+	@echo -e "\e[1;36m[ 24%]\e[0m Memory manager libraries: PDE"
+	@$(CC) $(CCPARAM) -o $(OBJ)/mmngr-lib-pde.o SysCore/memory/lib/pde.c 
+
+$(OBJ)/mmngr-lib-pte.o : SysCore/memory/lib/pte.c SysCore/memory/lib/pte.h
+	@echo -e "\e[1;36m[ 25%]\e[0m Memory manager libraries: PTE"
+	@$(CC) $(CCPARAM) -o $(OBJ)/mmngr-lib-pte.o SysCore/memory/lib/pte.c 
+
+
+# Build drivers
+$(OBJ)/driver-drivers.o : SysCore/drivers/drivers.c SysCore/include/system.h \
+			SysCore/drivers/cpu/cpu.h SysCore/drivers/clock/clock.h \
+			SysCore/drivers/floppy/floppy.h SysCore/include/drivers/keyboard.h
+	@echo -e "\e[1;35m[ 26%]\e[0m Driver manager"
+	@$(CC) $(CCPARAM) -o $(OBJ)/driver-drivers.o SysCore/drivers/drivers.c 
+
+$(OBJ)/driver-bsod.o : SysCore/drivers/BSOD.c SysCore/include/system.h \
+		       SysCore/include/conio.h
+	@echo -e "\e[1;35m[ 27%]\e[0m Kernel panic screen"
+	@$(CC) $(CCPARAM) -o $(OBJ)/driver-bsod.o SysCore/drivers/BSOD.c 
+
+$(OBJ)/driver-cpu.o : SysCore/drivers/cpu/cpu.c SysCore/include/system.h \
+		      SysCore/drivers/cpu/cpu.h SysCore/drivers/cpu/gdt/gdt.h \
+		      SysCore/drivers/cpu/idt/idt.h SysCore/drivers/cpu/irq/irq.h \
+		      SysCore/drivers/cpu/isrs/isrs.h
+	@echo -e "\e[1;35m[ 28%]\e[0m CPU modules"
+	@$(CC) $(CCPARAM) -o $(OBJ)/driver-cpu.o SysCore/drivers/cpu/cpu.c 
+
+$(OBJ)/driver-gdt.o : SysCore/drivers/cpu/gdt/gdt.c SysCore/drivers/cpu/gdt/gdt.h
+	@echo -e "\e[1;35m[ 29%]\e[0m Global descriptor table"
+	@$(CC) $(CCPARAM) -o $(OBJ)/driver-gdt.o SysCore/drivers/cpu/gdt/gdt.c
+
+$(OBJ)/driver-idt.o : SysCore/drivers/cpu/idt/idt.c SysCore/drivers/cpu/idt/idt.h \
+		      SysCore/include/system.h
+	@echo -e "\e[1;35m[ 30%]\e[0m Interrupt descriptor table"
+	@$(CC) $(CCPARAM) -o $(OBJ)/driver-idt.o SysCore/drivers/cpu/idt/idt.c
+
+$(OBJ)/driver-isrs.o : SysCore/drivers/cpu/isrs/isrs.c SysCore/drivers/cpu/isrs/isrs.h \
+		       SysCore/drivers/cpu/idt/idt.h SysCore/include/system.h \
+		       SysCore/include/conio.h
+	@echo -e "\e[1;35m[ 31%]\e[0m Interrupt service routines"
+	@$(CC) $(CCPARAM) -o $(OBJ)/driver-isrs.o SysCore/drivers/cpu/isrs/isrs.c
+
+
+$(OBJ)/driver-irq.o : SysCore/drivers/cpu/irq/irq.c SysCore/drivers/cpu/irq/irq.h \
+		      SysCore/include/system.h SysCore/drivers/cpu/idt/idt.h \
+		      SysCore/drivers/cpu/pic/pic.h 
+	@echo -e "\e[1;35m[ 32%]\e[0m Interrupt requests"
+	@$(CC) $(CCPARAM) -o $(OBJ)/driver-irq.o SysCore/drivers/cpu/irq/irq.c
+
+$(OBJ)/driver-pic.o : SysCore/drivers/cpu/irq/pic.c SysCore/drivers/cpu/irq/pic.h \
+		      SysCore/include/system.h  
+	@echo -e "\e[1;35m[ 33%]\e[0m Programmable interrupt controller"
+	@$(CC) $(CCPARAM) -o $(OBJ)/driver-pic.o SysCore/drivers/cpu/irq/pic.c
+
+$(OBJ)/driver-pit.o : SysCore/drivers/clock/pit.c SysCore/drivers/clock/clock.h \
+		      SysCore/include/system.h SysCore/include/time.h
+	@echo -e "\e[1;35m[ 34%]\e[0m Programmable interval timer"
+	@$(CC) $(CCPARAM) -o $(OBJ)/driver-pit.o SysCore/drivers/clock/pic.c
+
+$(OBJ)/driver-keyboard.o : SysCore/drivers/keyboard/keyboard.c SysCore/include/system.h \
+			   SysCore/include/drivers/keyboard.h  
+	@echo -e "\e[1;35m[ 35%]\e[0m Keyboard"
+	@$(CC) $(CCPARAM) -o $(OBJ)/driver-pic.o SysCore/drivers/cpu/irq/pic.c
+
+$(OBJ)/driver-dma.o : SysCore/drivers/floppy/dma.c SysCore/drivers/floppy/dma.h \
+			SysCore/include/system.h  
+	@echo -e "\e[1;35m[ 36%]\e[0m DMA Controller"
+	@$(CC) $(CCPARAM) -o $(OBJ)/driver-dma.o SysCore/drivers/floppy/dma.c
+
+$(OBJ)/driver-floppy.o : SysCore/drivers/floppy/floppy.c SysCore/drivers/floppy/dma.h \
+		      SysCore/include/system.h SysCore/include/time.h \
+		      SysCore/include/conio.h SysCore/drivers/floppy/storage.h \
+		      SysCore/drivers/floppy/floppy.h
+	@echo -e "\e[1;35m[ 37%]\e[0m FDC Controller"
+	@$(CC) $(CCPARAM) -o $(OBJ)/driver-floppy.o SysCore/drivers/floppy/floppy.c
+
+# TODO: add SysCore/drivers/filesys/vfs.h
+$(OBJ)/driver-fat.o : SysCore/drivers/filesys/fat.c SysCore/drivers/filesys/fat.h \
+		      SysCore/drivers/floppy/floppy.h SysCore/include/conio.h
+	@echo -e "\e[1;35m[ 38%]\e[0m File system"
+	@$(CC) $(CCPARAM) -o $(OBJ)/driver-fat.o SysCore/drivers/floppy/fat.c
+
+# TODO: add vfs.c
+
+# TODO: add colors
+$(OBJ)/video-vga03h.o : SysCore/video/vga03h.c SysCore/include/conio.h \
+			SysCore/include/system.h
+	@$(CC) $(CCPARAM) -o $(OBJ)/video-vga03h.o SysCore/video/vga03h.c
+
+
+.PHONY : clean
+clean:
+	- rm ctaos.img
+	rm $(OBJ)*.*

SysBoot/stage2/fat12.inc

@@ -11,7 +11,7 @@
 
 bits	16
 
-%include "Floppy16.inc"					; the erm.. floppy driver
+;%include "Floppy16.inc"					; the erm.. floppy driver
 
 %define ROOT_OFFSET 0x2e00
 %define FAT_SEG 0x2c0

SysBoot/stage2/stage2.asm

@@ -18,6 +18,7 @@ jmp	main				; go to start
 %include "stdio.inc"			; basic i/o routines
 %include "gdt.inc"			; Gdt routines
 %include "a20.inc"			; A20 enabling
+%include "floppy16.inc"
 %include "fat12.inc"			; FAT12 driver. Kinda :)
 %include "common.inc"
 ;%include "bootinfo.inc"

SysCore/compile.bat

@@ -4,7 +4,7 @@ set loader_name=loader
 
 rem NASM and DJGPP executable paths:
 set nasm_path=C:\nasm
-set djgpp_path=C:\DJGPP\bin
+set djgpp_path=C:\mingw\bin
 
 rem Compile loader
 @echo on

SysCore/debug/OSDev.log

@@ -0,0 +1,195 @@
+00000000000i[     ] Bochs x86 Emulator 2.4.5
+00000000000i[     ]   Build from CVS snapshot, on April 25, 2010
+00000000000i[     ] System configuration
+00000000000i[     ]   processors: 1 (cores=1, HT threads=1)
+00000000000i[     ]   A20 line support: yes
+00000000000i[     ] CPU configuration
+00000000000i[     ]   level: 6
+00000000000i[     ]   SMP support: no
+00000000000i[     ]   APIC support: yes
+00000000000i[     ]   FPU support: yes
+00000000000i[     ]   MMX support: yes
+00000000000i[     ]   3dnow! support: no
+00000000000i[     ]   SEP support: yes
+00000000000i[     ]   SSE support: sse2
+00000000000i[     ]   XSAVE support: no
+00000000000i[     ]   AES support: no
+00000000000i[     ]   MOVBE support: no
+00000000000i[     ]   x86-64 support: yes
+00000000000i[     ]   1G paging support: no
+00000000000i[     ]   MWAIT support: no
+00000000000i[     ]   VMX support: no
+00000000000i[     ] Optimization configuration
+00000000000i[     ]   RepeatSpeedups support: yes
+00000000000i[     ]   Trace cache support: yes
+00000000000i[     ]   Fast function calls: yes
+00000000000i[     ] Devices configuration
+00000000000i[     ]   ACPI support: yes
+00000000000i[     ]   NE2000 support: yes
+00000000000i[     ]   PCI support: yes, enabled=yes
+00000000000i[     ]   SB16 support: yes
+00000000000i[     ]   USB support: yes
+00000000000i[     ]   VGA extension support: vbe cirrus
+00000000000i[MEM0 ] allocated memory at 02720020. after alignment, vector=02721000
+00000000000i[MEM0 ] 32.00MB
+00000000000i[MEM0 ] mem block size = 0x00100000, blocks=32
+00000000000i[MEM0 ] rom at 0xe0000/131072 ('BIOS-bochs-latest')
+00000000000i[MEM0 ] rom at 0xc0000/40448 ('VGABIOS-lgpl-latest')
+00000000000i[CMOS ] Using local time for initial clock
+00000000000i[CMOS ] Setting initial clock to: Sun Nov 07 17:10:07 2010 (time0=1289142607)
+00000000000i[DMA  ] channel 4 used by cascade
+00000000000i[DMA  ] channel 2 used by Floppy Drive
+00000000000i[FDD  ] fd0: 'ctaos.img' ro=0, h=2,t=80,spt=18
+00000000000i[PCI  ] 440FX Host bridge present at device 0, function 0
+00000000000i[PCI  ] PIIX3 PCI-to-ISA bridge present at device 1, function 0
+00000000000i[MEM0 ] Register memory access handlers: 0x000a0000 - 0x000bffff
+00000000000i[WGUI ] Desktop Window dimensions: 1366 x 768
+00000000000i[WGUI ] Number of Mouse Buttons = 5
+00000000000i[WGUI ] IME disabled
+00000000000i[MEM0 ] Register memory access handlers: 0xe0000000 - 0xe0ffffff
+00000000000i[CLVGA] VBE Bochs Display Extension Enabled
+00000000000i[CLVGA] interval=50000
+00000000000i[     ] init_dev of 'unmapped' plugin device by virtual method
+00000000000i[     ] init_dev of 'biosdev' plugin device by virtual method
+00000000000i[     ] init_dev of 'speaker' plugin device by virtual method
+00000000000i[     ] init_dev of 'extfpuirq' plugin device by virtual method
+00000000000i[     ] init_dev of 'gameport' plugin device by virtual method
+00000000000i[     ] init_dev of 'pci_ide' plugin device by virtual method
+00000000000i[PCI  ] PIIX3 PCI IDE controller present at device 1, function 1
+00000000000i[     ] init_dev of 'acpi' plugin device by virtual method
+00000000000i[PCI  ] ACPI Controller present at device 1, function 3
+00000000000i[     ] init_dev of 'ioapic' plugin device by virtual method
+00000000000i[IOAP ] initializing I/O APIC
+00000000000i[MEM0 ] Register memory access handlers: 0xfec00000 - 0xfec00fff
+00000000000i[     ] init_dev of 'keyboard' plugin device by virtual method
+00000000000i[KBD  ] will paste characters every 1000 keyboard ticks
+00000000000i[     ] init_dev of 'harddrv' plugin device by virtual method
+00000000000i[HD   ] Using boot sequence floppy, none, none
+00000000000i[HD   ] Floppy boot signature check is enabled
+00000000000i[     ] init_dev of 'serial' plugin device by virtual method
+00000000000i[SER  ] com1 at 0x03f8 irq 4
+00000000000i[     ] init_dev of 'parallel' plugin device by virtual method
+00000000000i[PAR  ] parallel port 1 at 0x0378 irq 7
+00000000000i[     ] register state of 'unmapped' plugin device by virtual method
+00000000000i[     ] register state of 'biosdev' plugin device by virtual method
+00000000000i[     ] register state of 'speaker' plugin device by virtual method
+00000000000i[     ] register state of 'extfpuirq' plugin device by virtual method
+00000000000i[     ] register state of 'gameport' plugin device by virtual method
+00000000000i[     ] register state of 'pci_ide' plugin device by virtual method
+00000000000i[     ] register state of 'acpi' plugin device by virtual method
+00000000000i[     ] register state of 'ioapic' plugin device by virtual method
+00000000000i[     ] register state of 'keyboard' plugin device by virtual method
+00000000000i[     ] register state of 'harddrv' plugin device by virtual method
+00000000000i[     ] register state of 'serial' plugin device by virtual method
+00000000000i[     ] register state of 'parallel' plugin device by virtual method
+00000000000i[SYS  ] bx_pc_system_c::Reset(HARDWARE) called
+00000000000i[CPU0 ] cpu hardware reset
+00000000000i[APIC0] allocate APIC id=0 (MMIO enabled) to 0xfee00000
+00000000000i[CPU0 ] CPUID[0x00000000]: 00000003 756e6547 6c65746e 49656e69
+00000000000i[CPU0 ] CPUID[0x00000001]: 00000f20 00000800 00002000 078bfbff
+00000000000i[CPU0 ] CPUID[0x00000002]: 00410601 00000000 00000000 00000000
+00000000000i[CPU0 ] CPUID[0x00000003]: 00000000 00000000 00000000 00000000
+00000000000i[CPU0 ] CPUID[0x00000004]: 00000000 00000000 00000000 00000000
+00000000000i[CPU0 ] CPUID[0x80000000]: 80000008 00000000 00000000 00000000
+00000000000i[CPU0 ] CPUID[0x80000001]: 00000000 00000000 00000101 2a100800
+00000000000i[CPU0 ] CPUID[0x80000002]: 20202020 20202020 20202020 6e492020
+00000000000i[CPU0 ] CPUID[0x80000003]: 286c6574 50202952 69746e65 52286d75
+00000000000i[CPU0 ] CPUID[0x80000004]: 20342029 20555043 20202020 00202020
+00000000000i[CPU0 ] CPUID[0x80000006]: 00000000 42004200 02008140 00000000
+00000000000i[CPU0 ] CPUID[0x80000007]: 00000000 00000000 00000000 00000000
+00000000000i[CPU0 ] CPUID[0x80000008]: 00003020 00000000 00000000 00000000
+00000000000i[     ] reset of 'unmapped' plugin device by virtual method
+00000000000i[     ] reset of 'biosdev' plugin device by virtual method
+00000000000i[     ] reset of 'speaker' plugin device by virtual method
+00000000000i[     ] reset of 'extfpuirq' plugin device by virtual method
+00000000000i[     ] reset of 'gameport' plugin device by virtual method
+00000000000i[     ] reset of 'pci_ide' plugin device by virtual method
+00000000000i[     ] reset of 'acpi' plugin device by virtual method
+00000000000i[     ] reset of 'ioapic' plugin device by virtual method
+00000000000i[     ] reset of 'keyboard' plugin device by virtual method
+00000000000i[     ] reset of 'harddrv' plugin device by virtual method
+00000000000i[     ] reset of 'serial' plugin device by virtual method
+00000000000i[     ] reset of 'parallel' plugin device by virtual method
+00000003305i[BIOS ] $Revision: 1.247 $ $Date: 2010/04/04 19:33:50 $
+00000200000i[WGUI ] dimension update x=720 y=400 fontheight=16 fontwidth=9 bpp=8
+00000318042i[KBD  ] reset-disable command received
+00000444800i[VBIOS] VGABios $Id: vgabios.c,v 1.69 2009/04/07 18:18:20 vruppert Exp $
+
+00000444871i[CLVGA] VBE known Display Interface b0c0
+00000444903i[CLVGA] VBE known Display Interface b0c5
+00000447828i[VBIOS] VBE Bios $Id: vbe.c,v 1.62 2009/01/25 15:46:25 vruppert Exp $
+00000760517i[BIOS ] Starting rombios32
+00000761014i[BIOS ] Shutdown flag 0
+00000761695i[BIOS ] ram_size=0x02000000
+00000762173i[BIOS ] ram_end=32MB
+00000802745i[BIOS ] Found 1 cpu(s)
+00000822014i[BIOS ] bios_table_addr: 0x000fbc18 end=0x000fcc00
+00000822117i[PCI  ] 440FX PMC write to PAM register 59 (TLB Flush)
+00001149814i[PCI  ] 440FX PMC write to PAM register 59 (TLB Flush)
+00001477742i[P2I  ] PCI IRQ routing: PIRQA# set to 0x0b
+00001477763i[P2I  ] PCI IRQ routing: PIRQB# set to 0x09
+00001477784i[P2I  ] PCI IRQ routing: PIRQC# set to 0x0b
+00001477805i[P2I  ] PCI IRQ routing: PIRQD# set to 0x09
+00001477815i[P2I  ] write: ELCR2 = 0x0a
+00001478700i[BIOS ] PIIX3/PIIX4 init: elcr=00 0a
+00001486658i[BIOS ] PCI: bus=0 devfn=0x00: vendor_id=0x8086 device_id=0x1237 class=0x0600
+00001489220i[BIOS ] PCI: bus=0 devfn=0x08: vendor_id=0x8086 device_id=0x7000 class=0x0601
+00001491621i[BIOS ] PCI: bus=0 devfn=0x09: vendor_id=0x8086 device_id=0x7010 class=0x0101
+00001491851i[PIDE ] new BM-DMA address: 0xc000
+00001492555i[BIOS ] region 4: 0x0000c000
+00001494865i[BIOS ] PCI: bus=0 devfn=0x0b: vendor_id=0x8086 device_id=0x7113 class=0x0680
+00001495103i[ACPI ] new irq line = 11
+00001495117i[ACPI ] new irq line = 9
+00001495147i[ACPI ] new PM base address: 0xb000
+00001495161i[ACPI ] new SM base address: 0xb100
+00001495189i[PCI  ] setting SMRAM control register to 0x4a
+00001659283i[CPU0 ] Enter to System Management Mode
+00001659293i[CPU0 ] RSM: Resuming from System Management Mode
+00001823313i[PCI  ] setting SMRAM control register to 0x0a
+00001832484i[BIOS ] MP table addr=0x000fbcf0 MPC table addr=0x000fbc20 size=0xd0
+00001834543i[BIOS ] SMBIOS table addr=0x000fbd00
+00001836931i[BIOS ] ACPI tables: RSDP addr=0x000fbe20 ACPI DATA addr=0x01ff0000 size=0x988
+00001840169i[BIOS ] Firmware waking vector 0x1ff00cc
+00001851282i[PCI  ] 440FX PMC write to PAM register 59 (TLB Flush)
+00001852126i[BIOS ] bios_table_cur_addr: 0x000fbe44
+00014041543i[BIOS ] Booting from 0000:7c00
+00026325033i[KBD  ] setting typematic info
+00026325046i[KBD  ] setting delay to 500 mS (unused)
+00026325046i[KBD  ] setting repeat rate to 10.9 cps (unused)
+00026325079i[KBD  ] Switched to scancode set 2
+00026325154i[KBD  ] keyboard: scan convert turned off
+00026326238i[FDD  ] controller reset in software
+00026326585i[FDD  ] io_write: config control register: 0x00
+00026326642e[FDD  ] non DMA mode not fully implemented yet
+00055764602e[FDD  ] non DMA mode not fully implemented yet
+00055764757e[FDD  ] non DMA mode not fully implemented yet
+00067767563p[FDD  ] >>PANIC<< write 0x03f5: receiving new command 0x03, old one (0xc6) pending
+00067767563i[CPU0 ] CPU is in protected mode (active)
+00067767563i[CPU0 ] CS.d_b = 32 bit
+00067767563i[CPU0 ] SS.d_b = 32 bit
+00067767563i[CPU0 ] EFER   = 0x00000000
+00067767563i[CPU0 ] | RAX=0000000000000003  RBX=0000000000000000
+00067767563i[CPU0 ] | RCX=0000000000000012  RDX=00000000000003f5
+00067767563i[CPU0 ] | RSP=000000000008fd68  RBP=00000000c000a21c
+00067767563i[CPU0 ] | RSI=0000000000000000  RDI=0000000000000001
+00067767563i[CPU0 ] |  R8=0000000000000000   R9=0000000000000000
+00067767563i[CPU0 ] | R10=0000000000000000  R11=0000000000000000
+00067767563i[CPU0 ] | R12=0000000000000000  R13=0000000000000000
+00067767563i[CPU0 ] | R14=0000000000000000  R15=0000000000000000
+00067767563i[CPU0 ] | IOPL=0 id vip vif ac vm rf nt of df IF tf SF zf af pf cf
+00067767563i[CPU0 ] | SEG selector     base    limit G D
+00067767563i[CPU0 ] | SEG sltr(index|ti|rpl)     base    limit G D
+00067767563i[CPU0 ] |  CS:0008( 0001| 0|  0) 00000000 ffffffff 1 1
+00067767563i[CPU0 ] |  DS:0010( 0002| 0|  0) 00000000 ffffffff 1 1
+00067767563i[CPU0 ] |  SS:0010( 0002| 0|  0) 00000000 ffffffff 1 1
+00067767563i[CPU0 ] |  ES:0010( 0002| 0|  0) 00000000 ffffffff 1 1
+00067767563i[CPU0 ] |  FS:0010( 0002| 0|  0) 00000000 ffffffff 1 1
+00067767563i[CPU0 ] |  GS:0010( 0002| 0|  0) 00000000 ffffffff 1 1
+00067767563i[CPU0 ] |  MSR_FS_BASE:0000000000000000
+00067767563i[CPU0 ] |  MSR_GS_BASE:0000000000000000
+00067767563i[CPU0 ] | RIP=00000000c00040be (00000000c00040bd)
+00067767563i[CPU0 ] | CR0=0xe0000011 CR2=0x0000000000000000
+00067767563i[CPU0 ] | CR3=0x00001000 CR4=0x00000000
+00067767563i[CPU0 ] 0x00000000c00040bd>> out dx, al : EE
+00067767563i[CMOS ] Last time is 1289142623 (Sun Nov 07 17:10:23 2010)
+00067767563i[     ] restoring default signal behavior

SysCore/debug/bochs_config.bxrc

@@ -0,0 +1,17 @@
+# ROM and VGA BIOS images ---------------------------------------------
+ 
+romimage:    file=BIOS-bochs-latest, address=0xe0000 
+vgaromimage: file=VGABIOS-lgpl-latest
+ 
+# boot from floppy using our disk image -------------------------------
+ 
+floppya: 1_44=ctaos.img, status=inserted
+ 
+# logging and reporting -----------------------------------------------
+ 
+log:         OSDev.log             # All errors and info logs will output to OSDev.log
+error:       action=report 
+info:        action=report
+
+magic_break: enabled=1
+

SysCore/drivers/BSOD.c

@@ -81,4 +81,5 @@ char *exception_messages[] = {
 void _STOP_ERROR_SCREEN (ISR_stack_regs *r)
 {
     cprintf ("%#0C** Fatal Error: "); cprintf("%#0E %s \n\r", exception_messages[r->int_no]);
+    for (;;);
 }

SysCore/drivers/clock/clock.h

@@ -0,0 +1,20 @@
+#ifndef __PIT_H
+#define __PIT_H
+
+#include <regs.h>
+#include <time.h>
+
+extern void i86_PitHandler(ISR_stack_regs *r);
+extern void i86_PitInitialize(int freq);
+extern unsigned char PitIsInitialized();
+extern void PitSetFrequency(int frequency);
+extern unsigned int PitGetFrequency();
+
+extern TIME ClockGetTime();
+extern unsigned int ClockSetTickCount(unsigned int i);
+extern unsigned int ClockGetTickCount();
+
+extern void i86_SetRTC (const TIME* time);
+extern void i86_GetRTC(TIME* tim);
+
+#endif

SysCore/drivers/clock/pit.c

@@ -0,0 +1,120 @@
+#include <system.h>
+#include <time.h>
+#include "clock.h"
+
+volatile unsigned int ClockTicks = 0;
+volatile unsigned int ClockFrequency = 0;
+unsigned char PitInitialized = 0;
+volatile TIME _InternalClock;
+
+
+void PitSetFrequency(int frequency)
+{
+      int divisor = 1193180/frequency;           // Calculate the divisor
+      outportb(0x43, 0x36);               // Set our command byte 0x36
+      outportb(0x40, divisor&0xFF);       // Set low byte
+      outportb(0x40, divisor>>8);         // Set high byte
+      ClockFrequency = frequency;
+}
+
+void i86_PitHandler(ISR_stack_regs *r)
+{
+      ClockTicks++;                                  // count tick
+      if (ClockTicks % ClockFrequency == 0)
+                  _CLOCK_INC((TIME*)&_InternalClock);   // update internal clock
+}
+
+unsigned int ClockSetTickCount(unsigned int i)
+{
+      unsigned int r = ClockTicks;
+      ClockTicks = i;
+      return r;
+}
+
+unsigned int ClockGetTickCount()
+{
+      return ClockTicks;
+}
+unsigned int PitGetFrequency()
+{
+      return ClockFrequency;
+}
+
+void i86_PitInitialize(int freq)
+{
+      PitSetFrequency(freq);
+      ClockTicks = 0;
+
+      i86_GetRTC((TIME*) &_InternalClock);
+
+      PitInitialized = 1;
+}
+
+TIME ClockGetTime()
+{
+    return _InternalClock;
+}
+
+unsigned char PitIsInitialized()
+{
+      return PitInitialized;
+}
+
+
+inline unsigned char CmosRead (unsigned char address)
+{
+      outportb(0x70, address); iowait();
+      return inportb(0x71);
+}
+
+inline void CmosWrite (unsigned char address, unsigned char val)
+{
+      outportb(0x70, address); iowait();
+      outportb(0x71, val);
+}
+
+void i86_SetRTC (const TIME* time)
+{
+      unsigned char BCD = ((CmosRead(0x0b)&4)==0) ? 1 : 0;
+      unsigned char ampm = ((CmosRead(0x0b)&2)==0) ? 1 : 0;
+
+      CmosWrite (0, (BCD) ? (time->second%10) | (time->second/10*16) : time->second);        // Seconds
+      CmosWrite (2, (BCD) ? (time->minute%10) | (time->minute/10*16) : time->minute);        // Minutes
+
+      if (ampm && time->hour > 12)                                                                // Hours
+            CmosWrite (4, (BCD) ? (((time->hour - 12) % 10) | ((time->hour - 12)/10*16) | 0x80) : (time->hour | 0x80) );
+
+      else if (ampm && time->hour == 0)                                                           // Midnight convention: 12 PM = 00:00
+            CmosWrite (4, (BCD) ? 0x92 : 0x8C);
+
+      else CmosWrite (4, (BCD) ? (time->hour%10) | (time->hour/10*16) : time->hour);         // 24h / AM
+
+      CmosWrite (6, (BCD) ? (time->weekday%10) | (time->weekday/10*16) : time->weekday);     // Weekday
+      CmosWrite (7, (BCD) ? (time->day%10) | (time->day/10*16) : time->day);                 // Day
+      CmosWrite (8, (BCD) ? (time->month%10) | (time->month/10*16) : time->month);           // Month
+      CmosWrite (9, (BCD) ? (time->year%10) | (time->year/10*16) : time->year);              // Year
+      CmosWrite (0x32, (BCD) ? (time->century%10) | (time->century/10*16) : time->century);  // Century
+}
+
+void i86_GetRTC(TIME* tim)
+{
+      unsigned char BCD = ((CmosRead(0x0b)&4)==0) ? 1 : 0;
+      unsigned char am_pm = ((CmosRead(0x0b)&2)==0) ? 1 : 0;
+
+      tim->second = (BCD) ? (CmosRead(0x00)%16) + 10*(CmosRead(0x00)/16): CmosRead(0x00);
+      tim->minute = (BCD) ? (CmosRead(0x02)%16) + 10*(CmosRead(0x02)/16): CmosRead(0x02);
+
+      // Time is PM
+      if (am_pm && CmosRead(0x04)&80) {
+            tim->hour = (BCD) ? ((CmosRead(0x04)-0x80)%16) + 10*((CmosRead(0x04)-0x80)/16): CmosRead(0x04)-0x80;
+            tim->hour += 12;
+      }
+      // 24Hour format, or AM
+      else tim->hour = (BCD) ? (CmosRead(0x04)%16) + 10*(CmosRead(0x04)/16): CmosRead(0x04);
+
+      tim->weekday = (BCD) ? (CmosRead(0x06)%16) + 10*(CmosRead(0x06)/16): CmosRead(0x06);
+      tim->day = (BCD) ? (CmosRead(0x07)%16) + 10*(CmosRead(0x07)/16): CmosRead(0x07);
+      tim->month = (BCD) ? (CmosRead(0x08)%16) + 10*(CmosRead(0x08)/16): CmosRead(0x08);
+      tim->year = (BCD) ? (CmosRead(0x09)%16) + 10*(CmosRead(0x09)/16): CmosRead(0x09);
+      tim->century = (BCD) ? (CmosRead(0x32)%16) + 10*(CmosRead(0x32)/16): CmosRead(0x32);
+}

SysCore/drivers/compile.bat

@@ -2,7 +2,7 @@
 
 set loader_name=loader
 set nasm_path=C:\nasm
-set djgpp_path=C:\DJGPP\bin
+set djgpp_path=C:\mingw\bin
 
 
 @echo *****************      CTA KERNEL      *****************

SysCore/drivers/cpu/compile.bat

@@ -4,7 +4,7 @@ set loader_name=loader
 
 rem NASM and DJGPP executable paths:
 set nasm_path=C:\nasm
-set djgpp_path=C:\DJGPP\bin
+set djgpp_path=C:\mingw\bin
 set objpath=../../objects
 set incpath=../../include
 

SysCore/drivers/cpu/cpu.c

@@ -0,0 +1,40 @@
+#include <system.h>
+#include "cpu.h"
+#include "gdt/gdt.h"
+#include "idt/idt.h"
+#include "irq/irq.h"
+#include "isrs/isrs.h"
+
+#define cpuid(in, a, b, c, d) __asm__("cpuid": "=a" (a), "=b" (b), "=c" (c), "=d" (d) : "a" (in));
+
+// initializes cpu resources
+void i86_CpuInitialize()
+{
+      i86_GdtInstall();
+      i86_IdtInstall();
+      i86_IsrsInstall();
+      i86_IrqInstall();
+}
+
+void i86_CpuShutdown()
+{
+
+}
+
+char* i86_CpuGetVendor()
+{
+      unsigned unused;
+      unsigned static arr[3];
+
+      cpuid(0, unused, arr[0], arr[2], arr[1]);
+
+      return (char*) arr;
+}
+
+_R32BIT i86_CpuID(unsigned function)
+{
+    _R32BIT ret = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
+
+    cpuid(function, ret.eax, ret.ebx, ret.ecx, ret.edx);
+    return ret;
+}

SysCore/drivers/cpu/cpu.h

@@ -0,0 +1,17 @@
+#ifndef _CPU_H_INCLUDED
+#define _CPU_H_INCLUDED
+
+#include <stdint.h>
+#include <regs.h>
+#include "gdt/gdt.h"
+#include "idt/idt.h"
+#include "irq/irq.h"
+#include "irq/pic.h"
+#include "isrs/isrs.h"
+
+
+extern void i86_CpuInitialize ();
+extern void i86_CpuShutdown ();
+extern char* i86_CpuGetVendor ();
+
+#endif

SysCore/drivers/cpu/gdt/gdt.asm

@@ -5,9 +5,9 @@ bits 32
 ; far jump. A jump that includes a segment as well as an offset.
 ; This is declared in C as 'extern void gdt_flush();'
 
-global _i86_gdt_flush     ; Allows the C code to link to this
+global _i86_GdtFlush     ; Allows the C code to link to this
 extern _gp            ; Says that '_gp' is in another file
-_i86_gdt_flush:
+_i86_GdtFlush:
     lgdt [_gp]        ; Load the GDT with our '_gp' which is a special pointer
     mov ax, 0x10      ; 0x10 is the offset in the GDT to our data segment
     mov ds, ax

SysCore/drivers/cpu/gdt/gdt.c

@@ -5,14 +5,19 @@
 #define MAX_DESCRIPTORS 5
 #include "gdt.h"
 
+extern void i86_GdtInstall();
+
 /* Our GDT, with 3 entries, and finally our special GDT pointer */
-struct gdt_entry gdt[3];
+struct GdtEntry gdt[MAX_DESCRIPTORS];
-struct gdt_ptr gp;
+struct GdtPointer gp;
 
 		
 /* Setup a descriptor in the Global Descriptor Table */
-void i86_gdt_set_gate(int num, unsigned long base, unsigned long limit, unsigned char access, unsigned char gran)
+void i86_GdtSetGate(int num, unsigned long base, unsigned long limit, unsigned char access, unsigned char gran)
 {
+    /* Sanity check */
+    if (num >= MAX_DESCRIPTORS) return;
+    
     /* Setup the descriptor base address */
     gdt[num].base_low = (base & 0xFFFF);
     gdt[num].base_middle = (base >> 16) & 0xFF;
@@ -27,45 +32,45 @@ void i86_gdt_set_gate(int num, unsigned long base, unsigned long limit, unsigned
     gdt[num].access = access;
 }
 
-struct gdt_entry* i86_gdt_get_gate(int num)
+/*struct gdt_entry* i86_GdtGetGate(int num)
 {
       if (num>MAX_DESCRIPTORS) return 0;
       return &gdt[num];
-}
+}*/
 
 /* Should be called by main. This will setup the special GDT
 *  pointer, set up the first 3 entries in our GDT, and then
 *  finally call gdt_flush() in our assembler file in order
 *  to tell the processor where the new GDT is and update the
 *  new segment registers */
-void i86_gdt_install()
+void i86_GdtInstall()
 {
     /* Setup the GDT pointer and limit */
-    gp.limit = (sizeof(struct gdt_entry) * 3) - 1;
+    gp.limit = (sizeof(struct GdtEntry) * 3) - 1;
     gp.base = (unsigned int)&gdt;
 
     /* Our NULL descriptor */
-    i86_gdt_set_gate(0, 0, 0, 0, 0);
+    i86_GdtSetGate(0, 0, 0, 0, 0);
 
     /* The second entry is our Code Segment. The base address
     *  is 0, the limit is 4GBytes, it uses 4KByte granularity,
     *  uses 32-bit opcodes, and is a Code Segment descriptor.
     *  Please check the table above in the tutorial in order
     *  to see exactly what each value means */
-    i86_gdt_set_gate(1, 0, 0xFFFFFFFF, 0x9A, 0xCF);
+    i86_GdtSetGate(1, 0, 0xFFFFFFFF, 0x9A, 0xCF);
 
     /* The third entry is our Data Segment. It's EXACTLY the
     *  same as our code segment, but the descriptor type in
     *  this entry's access byte says it's a Data Segment */
-    i86_gdt_set_gate(2, 0, 0xFFFFFFFF, 0x92, 0xCF);
+    i86_GdtSetGate(2, 0, 0xFFFFFFFF, 0x92, 0xCF);
 
     /* User mode Code segment*/
-    i86_gdt_set_gate(3, 0, 0xFFFFFFFF, 0xFA, 0xCF);
+    i86_GdtSetGate(3, 0, 0xFFFFFFFF, 0xFA, 0xCF);
     
     /* User mode data segment*/
-    i86_gdt_set_gate(4, 0, 0xFFFFFFFF, 0xF2, 0xCF);
+    i86_GdtSetGate(4, 0, 0xFFFFFFFF, 0xF2, 0xCF);
 
     /* Flush out the old GDT and install the new changes! */
-    i86_gdt_flush();
+    i86_GdtFlush();
 }
 		

SysCore/drivers/cpu/gdt/gdt.h

@@ -9,7 +9,7 @@
 /* Defines a GDT entry. We say packed, because it prevents the
 *  compiler from doing things that it thinks is best: Prevent
 *  compiler "optimization" by packing */
-struct gdt_entry
+struct GdtEntry
 {
     unsigned short limit_low;
     unsigned short base_low;
@@ -21,7 +21,7 @@ struct gdt_entry
 
 /* Special pointer which includes the limit: The max bytes
 *  taken up by the GDT, minus 1. Again, this NEEDS to be packed */
-struct gdt_ptr
+struct GdtPointer
 {
     unsigned short limit;
     unsigned int base;
@@ -30,10 +30,9 @@ struct gdt_ptr
 
 /* This will be a function in start.asm. We use this to properly
 *  reload the new segment registers */
-extern void i86_gdt_flush();
+extern void i86_GdtInstall();
-extern void i86_gdt_set_gate(int num, unsigned long base, unsigned long limit, unsigned char access, unsigned char gran);
+extern void i86_GdtFlush();
-extern struct gdt_entry* i86_gdt_get_gate(int num);
+extern void i86_GdtSetGate(int num, unsigned long base, unsigned long limit, unsigned char access, unsigned char gran);
-
+//extern struct GdtEntry* i86_GdtGetGate(int num);
-extern void i86_gdt_install();
 
 #endif

SysCore/drivers/cpu/idt/idt.asm

@@ -2,8 +2,8 @@ bits 32
 
 ; !!!  IDT  !!!
 ; Loads the IDT defined in '_idtp'
-global _i86_idt_load
+global _i86_IdtLoad
 extern _idtp
-_i86_idt_load:
+_i86_IdtLoad:
       lidt [_idtp]
       ret

SysCore/drivers/cpu/idt/idt.c

@@ -5,18 +5,14 @@
 #include <system.h>
 #include "idt.h"
 
-/* Declare an IDT of 256 entries. Although we will only use the
+extern void i86_IdtLoad();
-*  first 32 entries in this tutorial, the rest exists as a bit
+/* Declare an IDT of 256 entries.  */
-*  of a trap. If any undefined IDT entry is hit, it normally
+struct IdtEntry idt[256];
-*  will cause an "Unhandled Interrupt" exception. Any descriptor
+struct IdtPointer idtp;
-*  for which the 'presence' bit is cleared (0) will generate an
-*  "Unhandled Interrupt" exception */
-struct idt_entry idt[256];
-struct idt_ptr idtp;
 
 /* Use this function to set an entry in the IDT. Alot simpler
 *  than twiddling with the GDT ;) */
-void i86_idt_set_gate(unsigned char num, unsigned long base, unsigned short sel, unsigned char flags)
+void i86_IdtSetGate(unsigned char num, unsigned long base, unsigned short sel, unsigned char flags)
 {
     /* The interrupt routine's base address */
     idt[num].base_lo = (base & 0xFFFF);
@@ -29,21 +25,21 @@ void i86_idt_set_gate(unsigned char num, unsigned long base, unsigned short sel,
     idt[num].flags = flags;
 }
 
-struct idt_entry* i86_idt_get_gate(unsigned char num)
+struct IdtEntry* i86_IdtGetGate(unsigned char num)
 {
       return &idt[num];
 }
 
 /* Installs the IDT */
-void i86_idt_install()
+void i86_IdtInstall()
 {
     /* Sets the special IDT pointer up, just like in 'gdt.c' */
-    idtp.limit = (sizeof (struct idt_entry) * 256) - 1;
+    idtp.limit = (sizeof (struct IdtEntry) * 256) - 1;
     idtp.base = (unsigned int)&idt;
 
     /* Clear out the entire IDT, initializing it to zeros */
-    memset (&idt, 0, sizeof(struct idt_entry) * 256);
+    memset (&idt, 0, sizeof(struct IdtEntry) * 256);
 
     /* Points the processor's internal register to the new IDT */
-    i86_idt_load();
+    i86_IdtLoad();
 }

SysCore/drivers/cpu/idt/idt.h

@@ -7,7 +7,7 @@
 #define __IDT_H
 
 /* Defines an IDT entry */
-struct idt_entry
+struct IdtEntry
 {
     unsigned short base_lo;
     unsigned short sel;
@@ -16,7 +16,7 @@ struct idt_entry
     unsigned short base_hi;
 } __attribute__((packed));
 
-struct idt_ptr
+struct IdtPointer
 {
     unsigned short limit;
     unsigned int base;
@@ -24,9 +24,8 @@ struct idt_ptr
 
 
 /* This exists in 'start.asm', and is used to load our IDT */
-extern void i86_idt_load();
+extern void i86_IdtSetGate(unsigned char num, unsigned long base, unsigned short sel, unsigned char flags);
-extern void i86_idt_set_gate(unsigned char num, unsigned long base, unsigned short sel, unsigned char flags);
+extern struct IdtEntry* i86_IdtGetGate(unsigned char num);
-extern struct idt_entry* i86_idt_get_gate(unsigned char num);
+extern void i86_IdtInstall();
-extern void i86_idt_install();
 
 #endif

SysCore/drivers/cpu/irq/irq.asm

@@ -130,7 +130,7 @@ _i86_irq15:
       push byte 47
       jmp irq_common_stub
 
-extern _i86_irq_handler
+extern _i86_IrqHandler
 
 ; This is a stub that we have created for IRQ based ISRs. This calls
 ; '_i86_irq_handler' in our C code. We need to create this in an 'irq.c'
@@ -147,7 +147,7 @@ irq_common_stub:
       mov gs, ax
       mov eax, esp
       push eax
-      mov eax, _i86_irq_handler
+      mov eax, _i86_IrqHandler
       call eax
       pop eax
       pop gs

SysCore/drivers/cpu/irq/irq.c

@@ -0,0 +1,99 @@
+#include <system.h>
+#include "pic.h"
+#include "irq.h"
+#include "../idt/idt.h"
+
+/* These are own ISRs that point to our special IRQ handler
+*  instead of the regular 'fault_handler' function */
+extern void i86_irq0();
+extern void i86_irq1();
+extern void i86_irq2();
+extern void i86_irq3();
+extern void i86_irq4();
+extern void i86_irq5();
+extern void i86_irq6();
+extern void i86_irq7();
+extern void i86_irq8();
+extern void i86_irq9();
+extern void i86_irq10();
+extern void i86_irq11();
+extern void i86_irq12();
+extern void i86_irq13();
+extern void i86_irq14();
+extern void i86_irq15();
+
+/* This array is actually an array of function pointers. We use
+*  this to handle custom IRQ handlers for a given IRQ */
+void *IrqRoutines[16] =
+{
+    0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0
+};
+
+/* This installs a custom IRQ handler for the given IRQ */
+void i86_IrqInstallHandler (int irq, void (*handler)(ISR_stack_regs *r))
+{
+      IrqRoutines[irq] = handler;
+}
+
+void i86_IrqUninstallHandler (int irq)
+{
+      IrqRoutines[irq] = 0;
+}
+
+
+
+/* We first remap the interrupt controllers, and then we install
+*  the appropriate ISRs to the correct entries in the IDT. This
+*  is just like installing the exception handlers */
+void i86_IrqInstall()
+{
+      i86_PicRemap(32,40);
+      
+      i86_IdtSetGate(32, (unsigned)i86_irq0, 0x08, 0x8E);
+      i86_IdtSetGate(33, (unsigned)i86_irq1, 0x08, 0x8E);
+      i86_IdtSetGate(34, (unsigned)i86_irq2, 0x08, 0x8E);
+      i86_IdtSetGate(35, (unsigned)i86_irq3, 0x08, 0x8E);
+      i86_IdtSetGate(36, (unsigned)i86_irq4, 0x08, 0x8E);
+      i86_IdtSetGate(37, (unsigned)i86_irq5, 0x08, 0x8E);
+      i86_IdtSetGate(38, (unsigned)i86_irq6, 0x08, 0x8E);
+      i86_IdtSetGate(39, (unsigned)i86_irq7, 0x08, 0x8E);
+      i86_IdtSetGate(40, (unsigned)i86_irq8, 0x08, 0x8E);
+      i86_IdtSetGate(41, (unsigned)i86_irq9, 0x08, 0x8E);
+      i86_IdtSetGate(42, (unsigned)i86_irq10, 0x08, 0x8E);
+      i86_IdtSetGate(43, (unsigned)i86_irq11, 0x08, 0x8E);
+      i86_IdtSetGate(44, (unsigned)i86_irq12, 0x08, 0x8E);
+      i86_IdtSetGate(45, (unsigned)i86_irq13, 0x08, 0x8E);
+      i86_IdtSetGate(46, (unsigned)i86_irq14, 0x08, 0x8E);
+      i86_IdtSetGate(47, (unsigned)i86_irq15, 0x08, 0x8E);
+}
+
+/* Each of the IRQ ISRs point to this function, rather than
+*  the 'fault_handler' in 'isrs.c'. The IRQ Controllers need
+*  to be told when you are done servicing them, so you need
+*  to send them an "End of Interrupt" command (0x20). There
+*  are two 8259 chips: The first exists at 0x20, the second
+*  exists at 0xA0. If the second controller (an IRQ from 8 to
+*  15) gets an interrupt, you need to acknowledge the
+*  interrupt at BOTH controllers, otherwise, you only send
+*  an EOI command to the first controller. If you don't send
+*  an EOI, you won't raise any more IRQs */
+void i86_IrqHandler (ISR_stack_regs *r)
+{
+      /* This is a blank function pointer */
+      void (*handler)(ISR_stack_regs *r);
+      
+    /* Find out if we have a custom handler to run for this
+    *  IRQ, and then finally, run it */
+      handler = IrqRoutines[r->int_no - 32];
+      if (handler) handler(r);
+      
+    /* If the IDT entry that was invoked was greater than 40
+    *  (meaning IRQ8 - 15), then we need to send an EOI to
+    *  the slave controller */
+      if (r->int_no >=40) outportb(0x0A, 0x20);
+      
+    /* In either case, we need to send an EOI to the master
+    *  interrupt controller too */
+      outportb(0x20, 0x20);
+}

SysCore/drivers/cpu/irq/irq.h

@@ -0,0 +1,10 @@
+#ifndef __IRQ_H
+#define __IRQ_H
+
+#include <regs.h>
+
+extern void i86_IrqInstallHandler (int irq, void (*handler)(ISR_stack_regs *r));
+extern void i86_IrqUninstallHandler (int irq);
+extern void i86_IrqInstall();
+
+#endif

SysCore/drivers/cpu/irq/pic.c

@@ -1,7 +1,7 @@
 #include <system.h>
 #include "pic.h"
 
-void i86_pic_remap(int pic1, int pic2)
+void i86_PicRemap(int pic1, int pic2)
 {
       // Send ICW1
       outportb(0x20, 0x11);

SysCore/drivers/cpu/irq/pic.h

@@ -0,0 +1,6 @@
+#ifndef _PIC_H
+#define _PIC_H
+
+extern void i86_PicRemap(int pic1, int pic2);
+
+#endif

SysCore/drivers/cpu/isrs/isrs.asm

@@ -190,7 +190,7 @@ _i86_isr31:
       push byte 31
       jmp isr_common_stub      
             
-extern _i86_fault_handler
+extern _i86_FaultHandler
 
 isr_common_stub:
     pusha
@@ -205,7 +205,7 @@ isr_common_stub:
     mov gs, ax
     mov eax, esp   ; Push us the stack
     push eax
-    mov eax, _i86_fault_handler
+    mov eax, _i86_FaultHandler
     call eax       ; A special call, preserves the 'eip' register
     pop eax
     pop gs

SysCore/drivers/cpu/isrs/isrs.c

@@ -0,0 +1,115 @@
+#include <system.h>
+#include <conio.h>
+#include "isrs.h"
+#include "../idt/idt.h"
+
+// Assembly coded
+extern void i86_isr0();
+extern void i86_isr1();
+extern void i86_isr2();
+extern void i86_isr3();
+extern void i86_isr4();
+extern void i86_isr5();
+extern void i86_isr6();
+extern void i86_isr7();
+extern void i86_isr8();
+extern void i86_isr9();
+extern void i86_isr10();
+extern void i86_isr11();
+extern void i86_isr12();
+extern void i86_isr13();
+extern void i86_isr14();
+extern void i86_isr15();
+extern void i86_isr16();
+extern void i86_isr17();
+extern void i86_isr18();
+extern void i86_isr19();
+extern void i86_isr20();
+extern void i86_isr21();
+extern void i86_isr22();
+extern void i86_isr23();
+extern void i86_isr24();
+extern void i86_isr25();
+extern void i86_isr26();
+extern void i86_isr27();
+extern void i86_isr28();
+extern void i86_isr29();
+extern void i86_isr30();
+extern void i86_isr31();
+
+
+void* IdtFaultHandlers[32] = {
+  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
+  };
+
+void i86_IsrsInstall()
+{
+      i86_IdtSetGate(0, (unsigned)i86_isr0, 0x08, 0x8E);
+      i86_IdtSetGate(1, (unsigned)i86_isr1, 0x08, 0x8E);
+      i86_IdtSetGate(2, (unsigned)i86_isr2, 0x08, 0x8E);
+      i86_IdtSetGate(3, (unsigned)i86_isr3, 0x08, 0x8E);
+      i86_IdtSetGate(4, (unsigned)i86_isr4, 0x08, 0x8E);
+      i86_IdtSetGate(5, (unsigned)i86_isr5, 0x08, 0x8E);
+      i86_IdtSetGate(6, (unsigned)i86_isr6, 0x08, 0x8E);
+      i86_IdtSetGate(7, (unsigned)i86_isr7, 0x08, 0x8E);
+      i86_IdtSetGate(8, (unsigned)i86_isr8, 0x08, 0x8E);
+      i86_IdtSetGate(9, (unsigned)i86_isr9, 0x08, 0x8E);
+      i86_IdtSetGate(10, (unsigned)i86_isr10, 0x08, 0x8E);
+      i86_IdtSetGate(11, (unsigned)i86_isr11, 0x08, 0x8E);
+      i86_IdtSetGate(12, (unsigned)i86_isr12, 0x08, 0x8E);
+      i86_IdtSetGate(13, (unsigned)i86_isr13, 0x08, 0x8E);
+      i86_IdtSetGate(14, (unsigned)i86_isr14, 0x08, 0x8E);
+      i86_IdtSetGate(15, (unsigned)i86_isr15, 0x08, 0x8E);
+      i86_IdtSetGate(16, (unsigned)i86_isr16, 0x08, 0x8E);
+      i86_IdtSetGate(17, (unsigned)i86_isr17, 0x08, 0x8E);
+      i86_IdtSetGate(18, (unsigned)i86_isr18, 0x08, 0x8E);
+      i86_IdtSetGate(19, (unsigned)i86_isr19, 0x08, 0x8E);
+      i86_IdtSetGate(20, (unsigned)i86_isr20, 0x08, 0x8E);
+      i86_IdtSetGate(21, (unsigned)i86_isr21, 0x08, 0x8E);
+      i86_IdtSetGate(22, (unsigned)i86_isr22, 0x08, 0x8E);
+      i86_IdtSetGate(23, (unsigned)i86_isr23, 0x08, 0x8E);
+      i86_IdtSetGate(24, (unsigned)i86_isr24, 0x08, 0x8E);
+      i86_IdtSetGate(25, (unsigned)i86_isr25, 0x08, 0x8E);
+      i86_IdtSetGate(26, (unsigned)i86_isr26, 0x08, 0x8E);
+      i86_IdtSetGate(27, (unsigned)i86_isr27, 0x08, 0x8E);
+      i86_IdtSetGate(28, (unsigned)i86_isr28, 0x08, 0x8E);
+      i86_IdtSetGate(29, (unsigned)i86_isr29, 0x08, 0x8E);
+      i86_IdtSetGate(30, (unsigned)i86_isr30, 0x08, 0x8E);
+      i86_IdtSetGate(31, (unsigned)i86_isr31, 0x08, 0x8E);
+}
+
+
+void i86_IsrsInstallHandler(int interr, void (*function)(ISR_stack_regs *r))
+{
+      if (interr < 32) IdtFaultHandlers[interr] = function;
+}
+
+void i86_IsrsUninstallHandler(int interr)
+{
+      if (interr < 32) IdtFaultHandlers[interr] = 0;
+}
+
+/* All of our Exception handling Interrupt Service Routines will
+*  point to this function. This will tell us what exception has
+*  happened! Right now, we simply halt the system by hitting an
+*  endless loop. All ISRs disable interrupts while they are being
+*  serviced as a 'locking' mechanism to prevent an IRQ from
+*  happening and messing up kernel data structures */
+void i86_FaultHandler(ISR_stack_regs *r)
+{
+    /* Is this a fault whose number is from 0 to 31? */
+    if (r->int_no < 32)
+    {
+        void (*func)(ISR_stack_regs *r);
+        func = IdtFaultHandlers[r->int_no];
+
+        // Halt system if unhandled
+        if (!func) {
+          cprintf("%#0C*** %#0EFatal error: Unhandled interrupt (INT%u)", r->int_no);
+          for(;;);
+          }
+
+        else (*func)(r);
+    }
+}

SysCore/drivers/cpu/isrs/isrs.h

@@ -0,0 +1,8 @@
+#ifndef __ISRS_H_
+#define __ISRS_H_
+
+extern void i86_IsrsInstall();
+extern void i86_IsrsInstallHandler(int interr, void (*function)(ISR_stack_regs *r));
+extern void i86_IsrsUninstallHandler(int interr);
+
+#endif

SysCore/drivers/drivers.c

@@ -0,0 +1,55 @@
+#include <system.h>
+#include "cpu/cpu.h"
+#include "clock/clock.h"
+#include "floppy/floppy.h"
+#include <drivers/keyboard.h>
+//BSOD
+
+extern void _STOP_ERROR_SCREEN(ISR_stack_regs *);
+
+void DriversInstall()
+{
+    // Initialize CPU stuff (GDT, IDT etc)
+    i86_CpuInitialize();
+
+    // Install default fault handler
+    int i;
+    for (i=0; i<32; i++)
+      i86_IsrsInstallHandler(i, _STOP_ERROR_SCREEN);
+
+
+    // Start installing keyboard
+    i86_IrqInstallHandler(1, i86_KeyboardHandler);
+    KeyboardInstallA();
+
+    // Install PIT
+    i86_PitInitialize(100);
+    i86_IrqInstallHandler(0, i86_PitHandler);
+
+    // Finish installing keyboard
+    KeyboardInstallB();
+
+    // Install floppy driver
+    asm volatile ("sti");
+    i86_IrqInstallHandler(6, i86_FloppyHandler);
+    FloppyInstall();
+
+}
+
+void SystemShutDown()
+{
+    i86_CpuShutdown();
+    // TODO: real shutdown
+}
+
+void SystemReboot()
+{
+    unsigned char good = 0x02;
+    while ((good & 0x02) != 0)
+        good = inportb(0x64);
+    outportb(0x64, 0xFE);
+
+    asm volatile ("cli");
+    asm volatile ("hlt");
+}
+

SysCore/drivers/drivers.h

@@ -0,0 +1,9 @@
+#ifndef __DRIVERS__H__
+#define __DRIVERS__H__
+
+
+extern void DriversInstall();
+extern void SystemShutDown();
+extern void SystemReboot();
+
+#endif

SysCore/drivers/filesys/fat.c

@@ -0,0 +1,34 @@
+#include "../floppy/floppy.h"
+//#include "vfs.h"
+#include "fat.h"
+
+#include <conio.h>
+
+// Detect what FAT is used
+unsigned FATDetect(unsigned TotalClusters)
+{
+    if (TotalClusters == 0) return 0;
+    if (TotalClusters < 4085) return 12;
+    if (TotalClusters < 65525) return 16;
+    return 32;
+}
+
+
+
+/*FatMountInfo FloppyMount(int drive)
+{
+    FatMountInfo a;
+    FATBootSectorPointer fat = (FATBootSectorPointer)0x7e00;
+    FloppyReadSector((unsigned*)fat, drive, 0);
+
+    // Write mount info
+    a.FATEntrySize = 8;
+    a.FATOffset = 1;
+    a.FATSize = (unsigned)fat->SectorsPerFAT;
+    a.NumberOfRootEntries = (unsigned)fat->NumberOfDirectoryEntries;
+    a.NumberOfSectors = (unsigned)(fat->NumberOfSectors == 0) ? (fat->NumberOfSectorsLong) : (fat->NumberOfSectors);
+    a.RootOffset = (unsigned)(fat->NumberOfFATs)*a.FATSize + 1;
+    a.RootSize = (a.NumberOfRootEntries * 32) / (unsigned)fat->BytesPerSector;
+
+    return a;
+}*/

SysCore/drivers/filesys/fat.h

@@ -0,0 +1,91 @@
+#ifndef __FAT_H__
+#define __FAT_H__
+
+typedef struct {
+    unsigned char   Drive;  //useless
+    unsigned char   FlagsNT;
+    unsigned char   Signature;  // 0x28 or 0x29
+    unsigned        SerialNumber;
+    char            VolumeLabel[11];
+    char            SysIDString[8];    // unreliable
+} __attribute__((packed)) BPB_EXT_16;
+
+
+typedef struct {
+    unsigned        SectorsPerFAT;
+    unsigned short  Flags;
+    unsigned short  Version;
+    unsigned        ClusterOfRootDirectory;
+    unsigned short  ClusterOfFSInfo;
+    unsigned short  ClusterOfBackupBootSector;
+    unsigned char   Reserved[12];   // Should be 0 at format
+    unsigned char   Drive;
+    unsigned char   FlagsNT;
+    unsigned char   Signature;  // 0x28 or 0x29
+    unsigned        SerialNumber;
+    char            VolumeLabel[11];
+    char            SysIDString[8]; // always FAT12
+
+} __attribute__((packed)) BPB_EXT_32;
+
+
+typedef struct {
+    unsigned char   _ignore[3];
+
+    // Bios Parameter Block
+    char            OEMIdentify[8];
+    unsigned short  BytesPerSector;
+    unsigned char   SectorsPerCluster;
+    unsigned short  ReservedSectors;
+    unsigned char   NumberOfFATs;
+    unsigned short  NumberOfDirectoryEntries;
+    unsigned short  NumberOfSectors;
+    unsigned char   MediaDescriptorType;
+    unsigned short  SectorsPerFAT;
+    unsigned short  SectorsPerTrack;
+    unsigned short  HeadsPerCylinder;
+    unsigned        HiddenSectors;
+    unsigned        NumberOfSectorsLong;
+    
+    union {
+        BPB_EXT_16 Ext16;
+        BPB_EXT_32 Ext32;
+    } Extended;
+
+} __attribute__((packed)) FATBootSector, *FATBootSectorPointer;
+
+
+typedef struct {
+    unsigned NumberOfSectors;
+    unsigned SizeOfSector;
+    unsigned FatOffset;
+    unsigned NumberOfRootEntries;
+    unsigned RootOffset;
+    unsigned SizeOfRoot;
+    unsigned SizeOfFat;
+    unsigned SizeOfFatEntry;
+    unsigned SizeOfCluster;
+    void     (*ReadSector)  (void* buffer, int lba);
+} FatMountInfo, *FatMountInfoPointer;
+
+
+typedef struct {
+    char            FileName[8];
+    char            Extension[3];
+    unsigned char   Atributes;
+    unsigned char   Reserved;
+    unsigned char   CreateTimeFine;
+    unsigned short  CreateTime;
+    unsigned short  CreateDate;
+    unsigned short  LastAccessedDate;
+    unsigned short  EAIndex;
+    unsigned short  LastModifiedTime;
+    unsigned short  LastModifiedDate;
+    unsigned short  FirstCluster;
+    unsigned        FileSize;
+} __attribute__((packed)) FatDirectoryEntry, *FatDirectoryEntryPointer;
+
+    
+extern FatMountInfo FloppyMount(int drive);
+
+#endif

SysCore/drivers/filesys/vfs.c

@@ -0,0 +1,98 @@
+#include "vfs.h"
+#define MaxDevices 256
+
+#define ReturnInvalid() { File ret; ret.Type = FileTypeInvalid; return ret;}
+
+unsigned CurrentDevice = 0;
+unsigned DeviceCount = 0;
+
+FileSystemPointer _FileSystems[MaxDevices];
+
+File VFSOpenFile (const char* FileName)
+{
+    unsigned Device = CurrentDevice;
+    
+    // No filename specified.
+    if (!FileName) ReturnInvalid();
+    
+    // File length
+    int len = strlen(FileName);
+    // File name without drive
+    char* Name = 0;
+    
+    // Check if relative or absolute path
+    int i;
+    for (i=0; i < len; i++)
+        if (FileName[i] == ':') {
+            Name = &FileName[i+1];
+            FileName[i] = 0;
+            len = i;
+            }
+            
+    // If absolute path, find device
+    if (Name != 0) {
+        for (i=0; i < MaxDevices; i++)
+            if (_FileSystems[i]) {
+                if (strcmp(_FileSystems[i]->Name, FileName) == 0) Device = i;
+            }
+        }
+    // Drive is nonexistant or current drive not mounted
+    if (i==MaxDevices || !_FileSystems[Device]) ReturnInvalid();
+    
+    // Open file
+    return _FileSystems[Device]->Open((Name) ? Name : FileName);
+}
+
+
+int VFSInstallFileSystem(FileSystemPointer fs)
+{
+    // Sanity check
+    if (!fs) return 0;
+    
+    // Verify device does not exist
+    int i;
+    for (i=0; i < DeviceCount; i++)
+        if (_FileSystems[i]) 
+            if (strcmp (fs->Name, _FileSystems[i]->Name) == 0) return 0;
+            
+    _FileSystems[DeviceCount] = fs; DeviceCount++;
+}
+
+void VFSUninstallFileSystem(FileSystemPointer fs)
+{
+    if (!fs) return;
+    
+    int i;
+    for (i=0; i<DeviceCount; i++)
+        if (_FileSystems[i] == fs) {
+            _FileSystems[i] = 0;
+            return;
+        }
+    
+}
+
+void VFSUninstallFileSystemByName(const char* fs)
+{
+    if (!fs) return;
+
+    int i;
+    for (i=0; i<DeviceCount; i++)
+        if (_FileSystems[i])
+            if (strcmp(_FileSystems[i]->Name, fs) == 0){
+                _FileSystems[i] = 0;
+                return;
+            }
+}
+
+void VFSReadFile (FilePointer f, unsigned char* buffer, unsigned len)
+{
+    if (!f || !_FileSystems[f->Device]) return;
+    _FileSystems[f->Device]->Read (f, buffer, len);
+}
+
+void VFSCloseFile (FilePointer f)
+{
+    if (!f || !_FileSystems[f->Device]) return;
+    _FileSystems[f->Device]->Close(f);
+}
+

SysCore/drivers/filesys/vfs.h

@@ -0,0 +1,57 @@
+/***** vfs.h *********************************************************
+ * (c) 2010 CTA Systems Inc. All rights reserved. Glory To God       *
+ *                                                                   *
+ *         Virtual File System (VFS) Implementation                  *
+ *         ========================================                  *
+ *                                                                   *
+ ************************************************************ cta os */
+#ifndef __VFS__H___
+#define __VFS__H___
+
+#include <time.h>
+
+typedef enum {
+    FileTypeInvalid,
+    FileTypeFile,
+    FileTypeDirectory,
+    FileTypeSymbolicLink
+} FileType;
+
+enum FileFlags {
+    FileFlagReadOnly = 0x1,
+    FileFlagHidden = 0x2,
+    FileFlagSystem = 0x4,
+    FileFlagVolumeID = 0x8,
+    FileFlagDirectory = 0x10,
+    FileFlagArchive = 0x20
+};
+    
+
+typedef struct {
+    char Name[256];
+    FileType Type;
+    unsigned Flags;
+    unsigned Length;
+    unsigned EndOfFile;
+    unsigned ID;
+    unsigned Position, CurrentCluster;
+    unsigned Device;
+    TIME Created;
+    DATE LastAccessed;
+    TIME LastModified;
+} File, *FilePointer;
+
+
+typedef struct {
+    char    Name[256];
+    
+    File    (*Directory) (const char* DirectoryName);
+    void    (*Mount)    ();
+    void    (*Read)     (FilePointer, unsigned char*, unsigned);
+    void    (*Close)    (FilePointer);
+    FILE    (*Open)      (const char*);
+    
+} FileSystem, *FileSystemPointer;
+
+
+#endif

SysCore/drivers/floppy/dma.c

@@ -0,0 +1,137 @@
+/***** dma.c *********************************************************
+ * (c) 2010 CTA Systems Inc. All rights reserved. Glory To God       *
+ *                                                                   *
+ *         Direct Memory Access (DMA) Routines                       *
+ *         ===================================                       *
+ *                                                                   *
+ ************************************************************ cta os */
+
+#include "dma.h"
+#include <system.h>
+
+enum DMA0InputOutput {
+    DMA0StatusRegister = 0x08,
+    DMA0CommandRegister = 0x08,
+    DMA0RequestRegister = 0x09,
+    DMA0ChannelMaskRegister = 0x0a,
+    DMA0ModeRegister = 0x0b,
+    DMA0ClearByteFlipFlopRegister = 0x0c,
+    DMA0TempRegister = 0x0d,
+    DMA0MasterClearRegister = 0x0d,
+    DMA0ClearMaskRegister = 0x0e,
+    DMA0MaskRegister = 0x0f
+};
+
+enum DMA1InputOutput {
+    DMA1StatusRegister = 0xd0,
+    DMA1CommandRegister = 0xd0,
+    DMA1RequestRegister = 0xd2,
+    DMA1ChannelMaskRegister = 0xd4,
+    DMA1ModeRegister = 0xd6,
+    DMA1ClearByteFlipFlopRegister = 0xd8,
+    DMA1InterRegister = 0xda,
+    DMA1UnmaskAllRegister = 0xdc,
+    DMA1MaskRegister = 0xde
+};
+
+void DMASetAddress(unsigned short channel, unsigned char low, unsigned char high)
+{
+    if (channel > 7) return;   // Ignore if channel > 7
+
+    // Calculate port
+    unsigned short port = (channel >= 4) ? 4*(channel - 4) + 0xc0 : 2*channel;
+
+    // Set address
+    outportb (port, low);
+    outportb (port, high);
+}
+
+
+void DMASetCount (unsigned short channel, unsigned char low, unsigned char high)
+{
+    if (channel > 7) return;   // Ignore if channel > 7
+
+    // Calculate port
+    unsigned short port = (channel >= 4) ?  4*(channel - 4) + 0xc2
+                                         :  (2*channel) + 1;
+
+    // Set count
+    outportb (port, low);
+    outportb (port, high);
+}
+
+
+void DMASetExternalPageRegisters (unsigned char channel, unsigned char val)
+{
+    unsigned short port = 0;
+
+    switch (channel) {
+        case 1: port = 0x83; break;
+        case 2: port = 0x81; break;
+        case 3: port = 0x82; break;
+        // <- nothing should ever write to chan 4
+        case 5: port = 0x89; break;
+        case 6: port = 0x87; break;
+        case 7: port = 0x88; break;
+        default: if (channel == 4 || channel > 14) return;
+    }
+
+    outportb(port, val);
+}
+
+
+void DMAMaskChannel (unsigned char channel)
+{
+    if (channel <= 4) outportb (DMA0ChannelMaskRegister, (1<< (channel -1)));
+    else outportb (DMA1ChannelMaskRegister, (1<< (channel -5)));
+}
+
+
+void DMAUnmaskChannel (unsigned char channel)
+{
+    if (channel <= 4) outportb (DMA0ChannelMaskRegister, channel);
+    else outportb (DMA1ChannelMaskRegister, channel);
+}
+
+
+void DMAUnmaskAll()
+{
+    outportb (DMA1UnmaskAllRegister, 0xff);
+}
+
+
+void DMAResetFlipFlop (unsigned char dma)
+{
+    switch (dma) {
+        case 0: outportb (DMA0ClearByteFlipFlopRegister, 0xff);
+        case 1: outportb (DMA1ClearByteFlipFlopRegister, 0xff);
+    }
+}
+
+void DMAReset ()
+{
+    outportb (DMA0TempRegister, 0xff);
+}
+
+
+void DMASetMode(unsigned char channel, unsigned char mode)
+{
+    unsigned char dma = (channel < 4) ? 0:1;
+    unsigned char chan = (dma == 0) ? channel : channel-4;
+
+    DMAMaskChannel (channel);
+    outportb ((channel < 4) ? DMA0ModeRegister : DMA1ModeRegister, chan | mode);
+    DMAUnmaskAll ();
+}
+
+
+void DMASetRead (unsigned char channel)
+{
+    DMASetMode (channel, DMAModeReadTransfer | DMAModeTransferSingle);
+}
+
+
+void DMASetWrite (unsigned char channel)
+{
+    DMASetMode (channel, DMAModeWriteTransfer | DMAModeTransferSingle);
+}

SysCore/drivers/floppy/dma.h

@@ -0,0 +1,42 @@
+/***** dma.h *********************************************************
+ * (c) 2010 CTA Systems Inc. All rights reserved. Glory To God       *
+ *                                                                   *
+ *         Direct Memory Access (DMA) Routines                       *
+ *         ===================================                       *
+ *                                                                   *
+ ************************************************************ cta os */
+
+#ifndef __DMA__H__
+#define __DMA__H__
+
+enum DMA_MODE_REG_MASK {
+    DMAModeMaskSelect = 3,
+
+    DMAModeMaskTra = 0xc,
+    DMAModeSelfTest = 0,
+    DMAModeReadTransfer = 4,
+    DMAModeWriteTransfer = 8,
+
+    DMAModeMaskAuto = 0x10,
+    DMAModeMaskIdec = 0x20,
+
+    DMAModeMask = 0xc0,
+    DMAModeTransferOnDemand = 0,
+    DMAModeTransferSingle = 0x40,
+    DMAModeTransferBlock = 0x80,
+    DMAModeTransferCascade = 0xC0
+};
+
+extern void DMASetAddress(unsigned short channel, unsigned char low, unsigned char high);
+extern void DMASetCount (unsigned short channel, unsigned char low, unsigned char high);
+extern void DMASetExternalPageRegisters (unsigned char channel, unsigned char val);
+extern void DMAMaskChannel (unsigned char channel);
+extern void DMAUnmaskChannel (unsigned char channel);
+extern void DMAUnmaskAll();
+extern void DMAResetFlipFlop (unsigned char dma);
+extern void DMAReset ();
+extern void DMASetMode(unsigned char channel, unsigned char mode);
+extern void DMASetRead (unsigned char channel);
+extern void DMASetWrite (unsigned char channel);
+
+#endif

SysCore/drivers/floppy/floppy.c

@@ -0,0 +1,494 @@
+/***** floppy.c ******************************************************
+ * (c) 2010 CTA Systems Inc. All rights reserved. Glory To God       *
+ *                                                                   *
+ *         Floppy Drive I/O Routines                                 *
+ *         =========================                                 *
+ *                                                                   *
+ ************************************************************ cta os */
+#include <system.h>
+#include <conio.h>
+#include <time.h>
+#include "dma.h"
+#include "storage.h"
+
+unsigned char CmosReadFloppyData ()
+{
+      outportb (0x70, 0x10);
+      return inportb(0x71);
+}
+
+unsigned char FloppyDrivesInstalled;
+volatile unsigned char FloppyNewInterrupt;
+
+
+typedef struct {
+     unsigned char Type;
+     unsigned Size;
+     unsigned char SectorsPerTrack;
+     unsigned char Heads;
+     unsigned char Tracks;
+     unsigned char DataRate;
+     unsigned char StepRateTime;
+     unsigned char HeadLoadTime;
+     unsigned char HeadUnloadTime;
+     unsigned char Gap3;
+     unsigned char Gap3Format;
+} FloppyType;
+
+FloppyType fd[2];
+
+void FloppyReset();
+enum FloppyRegisters {
+    FloppyRegDOR = 0x3f2,
+    FloppyRegMSR = 0x3f4,
+    FloppyRegFIFO = 0x3f5,
+    FloppyRegCTRL = 0x3f7
+};
+
+enum FloppyCommands {
+    FloppyCommandReadTrack = 2,
+    FloppyCommandSpecify = 3,
+    FloppyCommandCheckStatus = 4,
+    FloppyCommandWriteSector = 5,
+    FloppyCommandReadSector = 6,
+    FloppyCommandCalibrate = 7,
+    FloppyCommandCheckInt = 8,
+    FloppyCommandFormatTrack = 0xd,
+    FloppyCommandSeek = 0xf,
+
+    FloppyCommandExtSkip = 0x20,
+    FloppyCommandExtDensity = 0x40,
+    FloppyCommandExtMultiTrack = 0x80
+};
+
+// Initialize DMA
+unsigned char FloppyInitializeDMA(unsigned char* buffer, unsigned length)
+{
+    union { unsigned char byt[4]; // Low[0], Mid[1], Hi[2]
+            unsigned long l;
+    } a, c;
+
+    a.l = (unsigned) buffer;
+    c.l = (unsigned) length-1;
+
+    // Check for buffer issues
+    if ((a.l >> 24) || (c.l >> 16) || (((a.l & 0xffff)+c.l) >> 16)) return 0;
+
+    DMAReset();
+    DMAMaskChannel(2);                          // Mask channel 2
+    DMAResetFlipFlop(1);                        // FlipFlop reset on DMA1
+
+    DMASetAddress(2, a.byt[0], a.byt[1]); // Buffer address
+    DMAResetFlipFlop(1);                  // FlipFlop reset on DMA2
+
+    DMASetCount(2, c.byt[0], c.byt[1]);   // Set count
+    DMASetRead(2);
+    DMAUnmaskAll();
+
+    return 1;
+}
+
+
+
+
+inline void FloppyDisableController() {
+    outportb (FloppyRegDOR, 0);
+}
+
+inline void FloppyEnableController() {
+    outportb (FloppyRegDOR, 4 | 8);
+}
+
+
+inline unsigned char FloppySendCommand (unsigned char command)
+{
+    int i;
+    for (i = 0; i < 750; i++)
+        if (inportb(FloppyRegMSR) & 128) {
+            outportb(FloppyRegFIFO, command); return 1;
+        }
+    return 0;
+}
+
+
+inline unsigned char FloppyReadData ()
+{
+    int i;
+    for (i = 0; i < 750; i++)
+        if (inportb(FloppyRegMSR) & 0x80)
+            return inportb(FloppyRegFIFO);
+    return 0;
+}
+
+
+inline void FloppyCheckInt(unsigned* st0, unsigned* cyl)
+{
+    int t;
+    for (t=3; t>=0; t--) {
+        if (!FloppySendCommand(0x8)) FloppyReset();
+        else break;
+    }
+    for (t=50; !(inportb(FloppyRegMSR) & 0x80) && t>0; --t);
+
+    *st0 = FloppyReadData();
+    *cyl = FloppyReadData();
+}
+
+
+inline unsigned char FloppyWaitIRQ()
+{
+    unsigned tick = ClockGetTickCount();
+    unsigned freq = PitGetFrequency();
+    tick = tick + (freq * 3);               // Wait 3 seconds
+    
+    while (FloppyNewInterrupt==0)
+           if (tick <= ClockGetTickCount()) return 0;  // timeout
+
+    FloppyNewInterrupt = 0;
+    return 1;
+}
+
+
+void FloppyMotor (unsigned char drive, unsigned char on)
+{
+    if (drive >= FloppyDrivesInstalled) return;
+
+    // Read DOR register
+    unsigned char dor = inportb(FloppyRegDOR);
+
+    // Un/set selected drive motor
+    if (on) dor |= 1 << (4+drive);
+    else dor &= ~(1 << (4+drive));
+
+    // Write DOR
+    outportb (FloppyRegDOR, dor);
+
+    // Wait a fifth of a second for motor to turn on
+    unsigned temp = ClockGetTickCount();
+    unsigned freq = PitGetFrequency();
+    while (temp + (freq/5) > ClockGetTickCount());
+}
+
+
+void i86_FloppyHandler(ISR_stack_regs *r)
+{
+    FloppyNewInterrupt = 1;
+}
+
+
+void FloppyDriveData (unsigned char drv, unsigned char dma)
+{
+    unsigned data = 0;
+    if (drv >= FloppyDrivesInstalled) return;
+
+    outportb(FloppyRegCTRL, fd[drv].DataRate);
+
+    FloppySendCommand (0x3);
+
+    data = ((fd[drv].StepRateTime & 0xf) << 4) | (fd[drv].HeadUnloadTime & 0xf);
+    FloppySendCommand (data);
+
+    data = (fd[drv].HeadLoadTime <<1 ) | (dma) ? 1 : 0;
+    FloppySendCommand (data);
+}
+
+
+inline void FloppySelect(unsigned char drive)
+{
+      if (drive >= FloppyDrivesInstalled) return;
+
+      unsigned char dor = inportb(FloppyRegDOR) & 0xf0;
+
+      // Send mechanical drive data
+      FloppyDriveData(drive, 1);
+
+      // Select drive in DOR register
+      outportb (FloppyRegDOR, dor | 4 | 8 | drive);
+
+}
+
+
+unsigned char FloppyCalibrate(unsigned drive)
+{
+    unsigned st0, cyl;
+
+    if (drive >= FloppyDrivesInstalled) return 0;
+
+    FloppyMotor (drive, 1);
+
+    int i;
+    for (i = 0; i < 15; i++) {
+        FloppyNewInterrupt = 0;
+        FloppySendCommand(FloppyCommandCalibrate);
+        FloppySendCommand(drive);
+        FloppyWaitIRQ();
+        FloppyCheckInt(&st0, &cyl);
+
+        if (!cyl) {
+            FloppyMotor(drive, 0);
+            return 1;
+        }
+    }
+    FloppyMotor(drive, 0);
+    return 0;
+}
+
+
+void FloppyReset()
+{
+    unsigned st0, cyl;
+
+    FloppyNewInterrupt = 0;
+    FloppyDisableController();
+    FloppyEnableController();
+    FloppyWaitIRQ();
+   
+    int i;
+    for (i = 0; i < 4; i++)
+        FloppyCheckInt(&st0, &cyl);
+
+    unsigned char drive;
+    for (drive = 0; drive < FloppyDrivesInstalled; drive++) {
+      FloppyDriveData(drive, 1);
+      FloppyCalibrate(drive);
+    }
+}
+
+
+unsigned FloppyReadSectorImp (unsigned* where, unsigned char drive, unsigned char head, unsigned char track, unsigned char sector)
+{
+    int t, fail;
+    for (t=3; t>=0; t--) {
+        fail = 0;
+        FloppySelect (drive);
+        FloppyInitializeDMA((unsigned char*) where, 512);
+        DMASetRead(2);
+
+        FloppyNewInterrupt = 0;
+
+        fail += 1-FloppySendCommand(0x06 | 0x80 | 0x40 );
+        fail += 1-FloppySendCommand(head<<2 | drive);
+        fail += 1-FloppySendCommand(track);
+        fail += 1-FloppySendCommand(head);
+        fail += 1-FloppySendCommand(sector);
+        fail += 1-FloppySendCommand(2);
+        fail += 1-FloppySendCommand( ((sector+1) >= fd[drive].SectorsPerTrack) ? fd[drive].SectorsPerTrack : sector+1);
+        fail += 1-FloppySendCommand(fd[drive].Gap3);
+        fail += 1-FloppySendCommand(0xff);
+
+        if (fail) {
+            FloppyReset(); continue;
+        }
+
+        FloppyWaitIRQ();
+        while (!(inportb(FloppyRegMSR) & 0x80));
+
+        int i; unsigned ccc=0;
+        
+        for (i = 0; i < 7; i++) {
+            if (i<3) ccc |= FloppyReadData() << (i*4);
+            else FloppyReadData();
+        }
+        
+        return ccc;
+    }
+    return 0xFFFFFFFF;
+}
+
+
+unsigned FloppyWriteSectorImp (unsigned* where, unsigned char drive, unsigned char head, unsigned char track, unsigned char sector)
+{
+    int t, fail;
+    for (t=3; t>=0; t--) {
+        fail = 0;
+        FloppySelect (drive);
+        FloppyInitializeDMA((unsigned char*) where, 512);
+        DMASetWrite(2);
+
+        FloppyNewInterrupt = 0;
+
+        fail += 1-FloppySendCommand(0x05 | 0x80 | 0x40 );
+        fail += 1-FloppySendCommand(head<<2 | drive);
+        fail += 1-FloppySendCommand(track);
+        fail += 1-FloppySendCommand(head);
+        fail += 1-FloppySendCommand(sector);
+        fail += 1-FloppySendCommand(2);
+        fail += 1-FloppySendCommand( ((sector+1) >= fd[drive].SectorsPerTrack) ? fd[drive].SectorsPerTrack : sector+1);
+        fail += 1-FloppySendCommand(fd[drive].Gap3);
+        fail += 1-FloppySendCommand(0xff);
+
+        if (fail) {
+            FloppyReset(); continue;
+        }
+        
+        FloppyWaitIRQ();
+
+        int i; unsigned ccc=0;
+        for (i = 0; i < 7; i++)
+            if (i<3) ccc |= FloppyReadData() << (i*4);
+            else FloppyReadData();
+
+        return ccc;
+    }
+    return 0xFFFFFFFF;
+}
+
+unsigned char FloppySeek (unsigned drive, unsigned cyl, unsigned head)
+{
+    unsigned st0, cyl0;
+
+    if (drive >= FloppyDrivesInstalled) return 0;
+
+    FloppySelect (drive);
+
+    int i;
+    for (i = 0; i < 20; i++) {
+        FloppyNewInterrupt = 0;
+        FloppySendCommand (0xF);
+        FloppySendCommand ( (head) << 2 | drive);
+        FloppySendCommand (cyl);
+
+        FloppyWaitIRQ();
+        FloppyCheckInt(&st0, &cyl0);
+
+        if (cyl0 == cyl) return 1;
+    }
+    return 0;
+}
+
+
+inline void FloppyLBAtoCHS (int lba, unsigned char drive, unsigned char *head, unsigned char *track, unsigned char *sectors)
+{
+    *head = (lba % (fd[drive].SectorsPerTrack * 2)) / fd[drive].SectorsPerTrack;
+    *track = lba / (fd[drive].SectorsPerTrack * 2);
+    *sectors = lba % fd[drive].SectorsPerTrack + 1;
+}
+
+
+/*const char* types[] = {
+      "Nonexistant", "5.25\", unsupported.", "5.25\", unsupported.",
+      "3.5\", 720kb", "3.5\", 1.44mb", "3.5\", 2.88 mb"};*/
+
+void FloppyInstall()
+{
+    unsigned char temp = CmosReadFloppyData();
+    int i;
+
+    // Set fd0 and fd1 types
+    fd[1].Type = temp & 0xf;
+    fd[0].Type = temp >> 4;
+    
+    // SRT = 16 - (ms * datarate / 500000);
+    // HLT = ms * datarate / 1000000
+    // HUT = ms * datarate / 8000000
+
+    // Set up
+    for (i = 0; i < 2; i++) {
+        if (fd[i].Type >= 3) FloppyDrivesInstalled++; // 5.25" drives unsupported
+        if (fd[i].Type == 3) {  // 720 kb, DD
+                fd[i].DataRate = 2;      // speed = 250 kbps
+                fd[i].StepRateTime = 12; // 16 - (ms * 250000 / 500000), ms = 8
+                fd[i].HeadLoadTime = 7;
+                fd[i].HeadUnloadTime = 7;
+                fd[i].SectorsPerTrack = 9;
+                fd[i].Size = 1440;
+                fd[i].Gap3 = 0x2A;
+                fd[i].Gap3Format = 0x50;
+                fd[i].Heads = 2;
+                fd[i].Tracks = 80;
+        }
+        else if (fd[i].Type == 4) { // 1.44 MB, HD
+                fd[i].DataRate = 0;      // speed = 500 kbps
+                fd[i].StepRateTime = 8;
+                fd[i].HeadLoadTime = 15;
+                fd[i].HeadUnloadTime = 15;
+                fd[i].SectorsPerTrack = 18;
+                fd[i].Size = 2880;
+                fd[i].Gap3 = 0x1B;
+                fd[i].Gap3Format = 0x6C;
+                fd[i].Heads = 2;
+                fd[i].Tracks = 80;
+        }
+        else if (fd[i].Type == 5) { // 2.88 MB, ED
+                fd[i].DataRate = 3;      // speed = 1000 kbps;
+                fd[i].StepRateTime = 0;
+                fd[i].HeadLoadTime = 30;
+                fd[i].HeadUnloadTime = 30;
+                fd[i].SectorsPerTrack = 36;
+                fd[i].Size = 5760;
+                fd[i].Gap3 = 0x1B;
+                fd[i].Gap3Format = 0x54;
+                fd[i].Heads = 2;
+                fd[i].Tracks = 80;
+        }
+    }
+    if (FloppyDrivesInstalled == 0) return;       // No drives to set
+
+
+    FloppyReset();
+}
+
+
+unsigned char FloppyIsDriverEnabled()
+{
+    return FloppyDrivesInstalled;
+}
+
+unsigned* FloppyReadSectors (unsigned* where, unsigned char drive, int sectorLBA, unsigned count)
+{
+    if (drive >= FloppyDrivesInstalled || !where) return 0;
+
+    unsigned head=0, track=0, sector=1, i, addr = (unsigned)where;
+
+    // start motor, seek to track
+    FloppyMotor(drive, 1);
+
+    // read count sectors
+    for (i=0; i<count; i++) {
+
+        // Convert lba to chs
+        head=0, track=0, sector=1;
+        FloppyLBAtoCHS(sectorLBA+i, drive, (unsigned char*)&head, (unsigned char*)&track, (unsigned char*) &sector);
+
+        // Seek
+        if (!FloppySeek(drive, track, head)) return 0;
+        
+        // Read the sector
+        FloppyReadSectorImp((unsigned*)0x7e00, drive, head, track, sector);
+
+        memcpy((void*)(addr+(0x200*i)), (void*)0x7e00, 0x200);
+    }
+    
+    FloppyMotor(drive, 0);
+
+    return (unsigned*)where;
+}
+
+unsigned* FloppyWriteSectors (unsigned* where, unsigned char drive, int sectorLBA, unsigned count)
+{
+    if (drive >= FloppyDrivesInstalled || !where) return 0;
+
+    unsigned head=0, track=0, sector=1, i, addr = (unsigned)where;
+
+    // start motor, seek to track
+    FloppyMotor(drive, 1);
+
+    // read count sectors
+    for (i=0; i<count; i++) {
+        memcpy((void*)0x7e00, (void*)(addr+(0x200*i)), 0x200);
+        where = where+0x200;
+        // Convert lba to chs
+        head=0, track=0, sector=1;
+        FloppyLBAtoCHS(sectorLBA+i, drive, (unsigned char*)&head, (unsigned char*)&track, (unsigned char*) &sector);
+
+        // Seek
+        if (!FloppySeek(drive, track, head)) return 0;
+
+        // Read the sector
+        FloppyWriteSectorImp((unsigned*)0x7e00, drive, head, track, sector);
+    }
+
+    FloppyMotor(drive, 0);
+
+    return (unsigned*)where;
+}

SysCore/drivers/floppy/floppy.h

@@ -0,0 +1,26 @@
+/***** floppy.h ******************************************************
+ * (c) 2010 CTA Systems Inc. All rights reserved. Glory To God       *
+ *                                                                   *
+ *         Floppy Drive I/O Routines                                 *
+ *         =========================                                 *
+ *                                                                   *
+ ************************************************************ cta os */
+#include<regs.h>
+
+extern unsigned char FloppyInitializeDMA(unsigned char* buffer, unsigned length);
+extern void FloppyMotor (unsigned char drive, unsigned char on);
+extern void i86_FloppyHandler(ISR_stack_regs *r);
+extern void FloppyDriveData (unsigned char drv, unsigned char dma);
+extern unsigned char FloppyCalibrate(unsigned drive);
+extern void FloppyReset();
+
+extern unsigned char FloppySeek (unsigned drive, unsigned cyl, unsigned head);
+extern void FloppyInstall();
+extern unsigned char FloppyIsDriverEnabled();
+
+// Read/Write routines
+extern unsigned* FloppyReadSectors (unsigned* where, unsigned char drive, int sectorLBA, unsigned count);
+extern unsigned* FloppyWriteSectors (unsigned* where, unsigned char drive, int sectorLBA, unsigned count);
+
+extern void FloppyReadSectorImp (unsigned* where, unsigned char drive, unsigned char head, unsigned char track, unsigned char sector);
+extern void FloppyWritedSectorImp (unsigned* where, unsigned char drive, unsigned char head, unsigned char track, unsigned char sector);

SysCore/drivers/floppy/storage.h

@@ -0,0 +1,14 @@
+#ifndef __STORAGE__H__
+#define __STORAGE__H__
+
+/**Structure used by the file system drivers.\n
+ \Warning: the driver that provides the Read/Write routines must
+ include conversions for partitions on hard drives.*/
+typedef struct {
+    unsigned NumberOfSectors;
+    unsigned SizeOfSector;
+    void     (*ReadSectors) (void* buffer, int startlba, int endlba);
+    void     (*WriteSectors) (void* buffer, int startlba, int endlba);
+} StorageDeviceInterface, *StorageDeviceInterfacePointer;
+
+#endif

SysCore/drivers/keyboard/compile.bat

@@ -1,15 +1,13 @@
 @echo off
-rem The name of the loader assembly file (without extension, must be .asm):
-set loader_name=loader
 
 rem NASM and DJGPP executable paths:
 set nasm_path=C:\nasm
-set djgpp_path=C:\DJGPP\bin
+set djgpp_path=C:\mingw\bin
 set objpath=../../objects
 set incpath=../../include
 
 @echo on
-%djgpp_path%\gcc.exe -Wall -O -fstrength-reduce -fomit-frame-pointer -nostdinc -fno-builtin -I%incpath% -c -o %objpath%/dma.o dma.c
+%djgpp_path%\gcc.exe -Wall -O -fstrength-reduce -fomit-frame-pointer -nostdinc -fno-builtin -I%incpath% -c -o %objpath%/drivers/keyboard.o keyboard.c 
 
 @echo off
 @echo .

SysCore/drivers/keyboard/keyboard.c

@@ -1,11 +1,7 @@
 #include <system.h>
-#include <hal.h>
+#include <drivers/keyboard.h>
-#include "keyus.h"
-#include "../irq/irq.h"
 
-extern void reboot();
+const char KeyMap[] = {
-
-const char kbdus_map[] = {
       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, '\t', '`', 0,
       0, 0, 0, 0, 0, 'q', '1', 0, 0, 0, 'z', 's', 'a', 'w', '2', 0,
       0, 'c', 'x', 'd', 'e', '4', '3', 0, 0, ' ', 'v', 'f', 't', 'r', '5', 0,
@@ -16,7 +12,7 @@ const char kbdus_map[] = {
       '0', '.', '2', '5', '6', '8', 0, 0, 0, '+', '3', '-', '*', '9', 0, 0
       };
 
-const char kbdus_map_shift[] = {
+const char KeyMapShift[] = {
       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, '\t', '~', 0,
       0, 0, 0, 0, 0, 'Q', '!', 0, 0, 0, 'Z', 'S', 'A', 'W', '@', 0,
       0, 'C', 'X', 'D', 'E', '$', '#', 0, 0, ' ', 'V', 'F', 'T', 'R', '%', 0,
@@ -27,116 +23,114 @@ const char kbdus_map_shift[] = {
       '0', '.', '2', '5', '6', '8', 0, 0, 0, '+', '3', '-', '*', '9', 0, 0
       };
 
-
+volatile unsigned char KeyArray[16];
-volatile unsigned char kb_array[16];
+volatile unsigned char KeyboardNewData;
-volatile unsigned char kb_newdata;
+volatile unsigned char KeyModifierStatus;
-volatile unsigned char kb_modifier_status;
+volatile unsigned char KeyScancodePrefix;
-volatile unsigned char kb_prefix;
+volatile unsigned char KeyLightsStatus;
-volatile unsigned char kb_lights_status;
+unsigned char KeyboardScancodeSet;
-unsigned char kb_scancode_set;
 
 
-void i86_kb_set_key(unsigned char scancode, unsigned char val)
+void KeyboardSetKey(unsigned char scancode, unsigned char val)
 {
       unsigned char pos = scancode/8;
       unsigned char offset = scancode%8;
       
       if (val) {
-            kb_array[pos] |= 1<<offset;
+            KeyArray[pos] |= 1<<offset;
-            kb_newdata = scancode;
+            KeyboardNewData = scancode;
             }
-      else kb_array[pos] &= 0xFF - (1<<offset);
+      else KeyArray[pos] &= 0xFF - (1<<offset);
 }
 
-unsigned char i86_kb_get_key(unsigned char scancode)
+unsigned char KeyIsPressed(unsigned char scancode)
 {
       unsigned char pos = scancode/8;
       unsigned char offset = scancode%8;
-      return (kb_array[pos]&(1<<offset));
+      return (KeyArray[pos]&(1<<offset));
 }
 
 
-void i86_kb_handler(ISR_stack_regs *r) {
+void i86_KeyboardHandler(ISR_stack_regs *r) {
       unsigned char scancode = inportb(0x60);
 
       switch (scancode) {
             case 0x00:                                      // Error 0x00
             case 0xFC:                                      // Diagnostics failed (MF kb)
             case 0xFD:                                      // Diagnostics failed (AT kb)
-            case 0xFF: i86_kb_waitin(); outportb(0x60, 0xF4);   // Error 0xFF
+            case 0xFF: KeyboardWaitInput(); outportb(0x60, 0xF4);   // Error 0xFF
                         break;
             case 0xAA:                                      // BAT test successful.
             case 0xFA:                                      // ACKnowledge
             case 0xFE:                                      // Last command invalid or parity error
             case 0xEE: break;                              // Echo response
         // Gray or break
-            case 0xE0: kb_prefix |= 1; break;
+            case 0xE0: KeyScancodePrefix |= 1; break;
-            case 0xE1: kb_prefix |= 4; break;
+            case 0xE1: KeyScancodePrefix |= 4; break;
-            case 0xF0: kb_prefix |= 2; break;
+            case 0xF0: KeyScancodePrefix |= 2; break;
 
         // Alt, ctrl...
-            case 0x11: if ((kb_prefix&1) == 0) {              // Left alt
+            case 0x11: if ((KeyScancodePrefix&1) == 0) {              // Left alt
-                           if ((kb_prefix&2) == 0) kb_modifier_status |= 1<<2;
+                           if ((KeyScancodePrefix&2) == 0) KeyModifierStatus |= 1<<2;
-                           else kb_modifier_status &= 0xFF - (1<<2);
+                           else KeyModifierStatus &= 0xFF - (1<<2);
                         }
                         else {                              // Right alt
-                           if ((kb_prefix&2) == 0) kb_modifier_status |= 1<<3;
+                           if ((KeyScancodePrefix&2) == 0) KeyModifierStatus |= 1<<3;
-                           else kb_modifier_status &= 0xFF - (1<<3);
+                           else KeyModifierStatus &= 0xFF - (1<<3);
                         }
-                        kb_prefix = 0; break;
+                        KeyScancodePrefix = 0; break;
                         
-            case 0x12: if ((kb_prefix&1) == 0) {              // Left shift
+            case 0x12: if ((KeyScancodePrefix&1) == 0) {              // Left shift
-                           if ((kb_prefix&2) == 0) kb_modifier_status |= 1<<0;
+                           if ((KeyScancodePrefix&2) == 0) KeyModifierStatus |= 1<<0;
-                           else kb_modifier_status &= 0xFF - (1<<0);
+                           else KeyModifierStatus &= 0xFF - (1<<0);
                         }
                         else {                              // Fake shift
-                           if ((kb_prefix&2) == 0) kb_modifier_status |= 1<<6;
+                           if ((KeyScancodePrefix&2) == 0) KeyModifierStatus |= 1<<6;
-                           else kb_modifier_status &= 0xFF - (1<<6);
+                           else KeyModifierStatus &= 0xFF - (1<<6);
                         }
-                        kb_prefix = 0; break;
+                        KeyScancodePrefix = 0; break;
                         
-            case 0x14: if (kb_prefix&4) {
+            case 0x14: if (KeyScancodePrefix&4) {           // Pause/break
-                              if ((kb_prefix&2) == 0) i86_kb_set_key (0, 1);
+                              if ((KeyScancodePrefix&2) == 0) KeyboardSetKey (0, 1);
-                              else i86_kb_set_key (0, 0);
+                              else KeyboardSetKey (0, 0);
-                              kb_prefix |= 8; break;
+                              KeyScancodePrefix |= 8; break;
                               }
             
-                        else if ((kb_prefix&1) == 0) {              // Left ctrl
+                        else if ((KeyScancodePrefix&1) == 0) {              // Left ctrl
-                           if ((kb_prefix&2) == 0) kb_modifier_status |= 1<<4;
+                           if ((KeyScancodePrefix&2) == 0) KeyModifierStatus |= 1<<4;
-                           else kb_modifier_status &= 0xFF - (1<<4);
+                           else KeyModifierStatus &= 0xFF - (1<<4);
                         }
                         else {                              // Right ctrl
-                           if ((kb_prefix&2) == 0) kb_modifier_status |= 1<<5;
+                           if ((KeyScancodePrefix&2) == 0) KeyModifierStatus |= 1<<5;
-                           else kb_modifier_status &= 0xFF - (1<<5);
+                           else KeyModifierStatus &= 0xFF - (1<<5);
                         }
-                        kb_prefix = 0; break;
+                        KeyScancodePrefix = 0; break;
                         
             case 0x59:                                      // Right shift
-                        if ((kb_prefix&2) == 0) kb_modifier_status |= 1<<1;
+                        if ((KeyScancodePrefix&2) == 0) KeyModifierStatus |= 1<<1;
-                        else kb_modifier_status &= 0xFF - (1<<1);
+                        else KeyModifierStatus &= 0xFF - (1<<1);
 
-                        kb_prefix = 0; break;
+                        KeyScancodePrefix = 0; break;
                         
         // LEDs
-            case 0x58: if ((kb_prefix&2) == 0) {
+            case 0x58: if ((KeyScancodePrefix&2) == 0) {
-                  kb_lights_status ^= 4; i86_kb_set_LEDs(kb_lights_status);
+                  KeyLightsStatus ^= 4; KeyboardSetLEDs(KeyLightsStatus);
-                  } kb_prefix = 0; break; // Caps
+                  } KeyScancodePrefix = 0; break; // Caps
                   
-            //TO ADD BELOW: pause/break byte2
             case 0x77:
-                  if ((kb_prefix&4) && (kb_prefix&8)) kb_prefix=0;
+                  if ((KeyScancodePrefix&4) && (KeyScancodePrefix&8)) KeyScancodePrefix=0;
-                  else if ((kb_prefix&2) == 0) {
+                  else if ((KeyScancodePrefix&2) == 0) {
-                  kb_lights_status ^= 2; i86_kb_set_LEDs(kb_lights_status); 
+                  KeyLightsStatus ^= 2; KeyboardSetLEDs(KeyLightsStatus);
-                  } kb_prefix = 0; break; // Num
+                  } KeyScancodePrefix = 0; break; // Num
-            case 0x7E: if ((kb_prefix&2) == 0) {
+            case 0x7E: if ((KeyScancodePrefix&2) == 0) {
-                  kb_lights_status ^= 1; i86_kb_set_LEDs(kb_lights_status); 
+                  KeyLightsStatus ^= 1; KeyboardSetLEDs(KeyLightsStatus);
-                  } kb_prefix = 0; break; // Scroll
+                  } KeyScancodePrefix = 0; break; // Scroll
                         
             case 0x83: scancode = 0x02; // Put F7 under the 0x80 (128bit) barrier
                         
             default: 
                   // Remap gray keys
-                  if (kb_prefix&1) switch (scancode) {
+                  if (KeyScancodePrefix&1) switch (scancode) {
                         case 0x7C: scancode=0x08; break;    // PrintScreen
                         case 0x4A: scancode=0x6A; break;    // Numpad /
                         case 0x5A: scancode=0x59; break;    // Numpad Enter
@@ -151,38 +145,30 @@ void i86_kb_handler(ISR_stack_regs *r) {
                         case 0x7A: scancode=0x67; break;    // PageDown
                         case 0x7D: scancode=0x68; break;    // PageUp
                         }
-                  if ((kb_prefix&2) == 0) i86_kb_set_key(scancode, 1);
+                  if ((KeyScancodePrefix&2) == 0) KeyboardSetKey(scancode, 1);
-                  else i86_kb_set_key(scancode, 0);
+                  else KeyboardSetKey(scancode, 0);
                   
-                  kb_prefix = 0; break;
+                  KeyScancodePrefix = 0; break;
       }
             
-      // Alt+ctrl+del = reset
-      if (scancode==0x62) {
-            int ok=0;
-            if ((kb_modifier_status&4) || (kb_modifier_status&8)) ok++;
-            if ((kb_modifier_status&16) || (kb_modifier_status&32)) ok++;
-            if (ok==2) reboot();
-            }
-      
 }
 
 
 
-kb_key getkey()
+KeyboardKey GetKey()
 {
-      kb_key ret;
+      KeyboardKey ret;
       
-      kb_newdata = 0xFF;
+      KeyboardNewData = 0xFF;
-      while (kb_newdata==0xFF);              // wait for keypress
+      while (KeyboardNewData==0xFF);              // wait for keypress
       
-      ret.scancode = kb_newdata;          // Send scancode for non-chars
+      ret.Scancode = KeyboardNewData;          // Send scancode for non-chars
-      ret.status = kb_modifier_status;    // Shift, ctrl... state
+      ret.ModifierStatus = KeyModifierStatus;    // Shift, ctrl... state
-      ret.lights = kb_lights_status;      // Num, caps.... state
+      ret.Lights = KeyLightsStatus;      // Num, caps.... state
       
-      if ((ret.status & 1) || (ret.status & 2)) // Shift is on
+      if ((ret.ModifierStatus & 1) || (ret.ModifierStatus & 2)) // Shift is on
-            ret.character = kbdus_map_shift[ret.scancode];
+            ret.Character = KeyMapShift[ret.Scancode];
-      else ret.character = kbdus_map[ret.scancode]; // Shift is off
+      else ret.Character = KeyMap[ret.Scancode]; // Shift is off
       
       return ret;                         // And send it.
 }
@@ -209,7 +195,7 @@ kb_key getkey()
   250 | 500 | 750 | 1000
   
  ***************************************/ 
-void i86_kb_set_repeat(unsigned char rate, unsigned char delay)
+void KeyboardSetRepeatRate(unsigned char rate, unsigned char delay)
 {
       if (rate>3 || delay>31) return;
 
@@ -230,7 +216,7 @@ void i86_kb_set_repeat(unsigned char rate, unsigned char delay)
  |(reserved) |  lock |  lock |  lock  |
  +-----------+-------+-------+--------+
  ***************************************/ 
-void i86_kb_set_LEDs(unsigned char status)
+void KeyboardSetLEDs(unsigned char status)
 {
     while ((inportb (0x64)&2)!=0);
     outportb (0x60, 0xED);
@@ -247,7 +233,7 @@ void i86_kb_set_LEDs(unsigned char status)
       2  Set to scancode set 2
       3  Set to scancode set 3
  ***************************************/ 
-void i86_kb_set_scancodeset(unsigned char set)
+void KeyboardSetScancodeSet(unsigned char set)
 {
     if (set>3) return;
     
@@ -257,69 +243,64 @@ void i86_kb_set_scancodeset(unsigned char set)
     while ((inportb (0x64)&2)!=0);
     outportb (0x60, set);
     
-    kb_scancode_set = set;
+    KeyboardScancodeSet = set;
 }
 
-unsigned char i86_kb_get_scancodeset() {
+/*unsigned char i86_kb_get_scancodeset() {
-      return kb_scancode_set;
+      return KeyboardScancodeSet;
-}
+}*/
 
-void i86_kb_waitin()
+void KeyboardWaitInput()
 {
       int fail_safe=200000;
       while ((inportb(0x64)&2)!=0 && fail_safe>0) fail_safe--;
 }
 
-void i86_kb_waitout()
+void KeyboardWaitOutput()
 {
       int fail_safe=200000;
       while ((inportb(0x64)&1)==0 && fail_safe>0) fail_safe--;
 }
 
 
-void i86_kb_install_partone()
+void KeyboardInstallA()
 {
-      i86_irq_install_handler(1, i86_kb_handler);// instali handler
+      KeyboardWaitInput(); outportb(0x60, 0xFF);         // Reset kb
-      i86_kb_waitin(); outportb(0x60, 0xFF);         // Reset kb
       
       // Initialize variables
-      kb_newdata = 0;
+      KeyboardNewData = 0;
-      kb_modifier_status = 0;
+      KeyModifierStatus = 0;
-      kb_prefix = 0;
+      KeyScancodePrefix = 0;
-      kb_lights_status = 0;
+      KeyLightsStatus = 0;
-      kb_scancode_set = 0;
+      KeyboardScancodeSet = 0;
 
+      memset((void*)KeyArray, 0, 16);
 }
 
 
-int i86_kb_install_parttwo()
+void KeyboardInstallB()
 {
-      int ret = 0;
-
       // Wait for BAT test results
       unsigned char temp;
       do temp = inportb(0x60);
       while (temp!=0xAA && temp!=0xFC);
 
-      if (temp == 0xFC) ret = -1;
+      // Error
+      if (temp == 0xFC) return;
       
       // Set new repeat rate
-      i86_kb_set_repeat(1, 11);
+      KeyboardSetRepeatRate(1, 11);
 
       // Set scancode set 2
-      i86_kb_set_scancodeset(2);  // Set new scancode set
+      KeyboardSetScancodeSet(2);  // Set new scancode set
 
-      i86_kb_waitin();
+      KeyboardWaitInput();
       outportb(0x64, 0x20); // Get "Command unsigned char"
       
       do {  temp = inportb(0x60);
       } while (temp==0xFA || temp==0xAA);
       
       temp &= 0xFF - (1<<6); // Set bit6 to 0: disable conversion
-      i86_kb_waitin(); outportb(0x64, 0x60); // Function to write cmd unsigned char
+      KeyboardWaitInput(); outportb(0x64, 0x60); // Function to write cmd unsigned char
-      i86_kb_waitin(); outportb(0x60, temp); // Send it
+      KeyboardWaitInput(); outportb(0x60, temp); // Send it
-      memset((void*)kb_array, 0, 16);
-
-      return ret;
-
 }

SysCore/drivers/keyboard/keyboard.deprecated.h

@@ -0,0 +1,135 @@
+
+#define KB_KEY_LSHIFT 0x81    // 1000 0001
+#define KB_KEY_RSHIFT 0X82    // 1000 0010
+#define KB_KEY_LALT   0X84    // 1000 0100
+#define KB_KEY_RALT   0x88    // 1000 1000
+#define KB_KEY_LCTRL  0x90    // 1001 0000
+#define KB_KEY_RCTRL  0xA0    // 1010 0000
+#define KB_KEY_FSHIFT 0xC0    // 1100 0000
+extern volatile unsigned char KeyModifierStatus;
+
+#define KB_PREFIX_GRAY   0x01       // Gray
+#define KB_PREFIX_BREAK  0x02       // Break code
+#define KB_PREFIX_PAUSE  0x04       // Pause/break key
+#define KB_PREFIX_PAUSE1 0x08       // Recieved first unsigned char from pause/break
+extern volatile unsigned char KeyScancodePrefix;
+
+#define KB_KEY_SCROLL  0xF1   // 1111 0001
+#define KB_KEY_NUM     0xF2   // 1111 0010
+#define KB_KEY_CAPS    0xF4   // 1111 0100
+extern volatile unsigned char KeyLightsStatus;
+
+extern unsigned char KeyboardScancodeSet;
+
+enum KeyboardKeys {
+       KeyboardKeyPAUSE         =      0x00,
+       KeyboardKeyF9            =      0x01,
+       KeyboardKeyF7            =      0x02,
+       KeyboardKeyF5            =      0X03,
+       KeyboardKeyF3            =      0x04,
+       KeyboardKeyF1            =      0x05,
+       KeyboardKeyF2            =      0x06,
+       KeyboardKeyF12           =      0x07,
+       KeyboardKeyPRINTSCRN     =      0x08,
+       KeyboardKeyF10           =      0x09,
+       KeyboardKeyF8            =      0x0A,
+       KeyboardKeyF6            =      0x0B,
+       KeyboardKeyF4            =      0x0C,
+       KeyboardKeyTAB           =      0x0D,
+       KeyboardKeyTILDA         =      0x0E,
+       KeyboardKeyQ             =      0x15,
+       KeyboardKey1             =      0x16,
+       KeyboardKeyZ             =      0x1A,
+       KeyboardKeyS             =      0x1B,
+       KeyboardKeyA             =      0x1C,
+       KeyboardKeyW             =      0x1D,
+       KeyboardKey2             =      0x1E,
+       KeyboardKeyLWIN          =      0x1F,
+       KeyboardKeyC             =      0x21,
+       KeyboardKeyX             =      0x22,
+       KeyboardKeyD             =      0x23,
+       KeyboardKeyE             =      0x24,
+       KeyboardKey4             =      0x25,
+       KeyboardKey3             =      0x26,
+       KeyboardKeyRWIN          =      0x27,
+       KeyboardKeySPACE         =      0x29,
+       KeyboardKeyV             =      0x2A,
+       KeyboardKeyF             =      0x2B,
+       KeyboardKeyT             =      0x2C,
+       KeyboardKeyR             =      0x2D,
+       KeyboardKey5             =      0x2E,
+       KeyboardKeyMENU          =      0x2F,
+       KeyboardKeyN             =      0x31,
+       KeyboardKeyB             =      0x32,
+       KeyboardKeyH             =      0x33,
+       KeyboardKeyG             =      0x34,
+       KeyboardKeyY             =      0x35,
+       KeyboardKey6             =      0x36,
+       KeyboardKeyM             =      0x3A,
+       KeyboardKeyJ             =      0x3B,
+       KeyboardKeyU             =      0x3C,
+       KeyboardKey7             =      0x3D,
+       KeyboardKey8             =      0x3E,
+       KeyboardKeyCOMMA         =      0x41,
+       KeyboardKeyK             =      0x42,
+       KeyboardKeyI             =      0x43,
+       KeyboardKeyO             =      0x44,
+       KeyboardKey0             =      0x45,
+       KeyboardKey9             =      0x46,
+       KeyboardKeyPERIOD        =      0x49,
+       KeyboardKeySLASH         =      0x4A,
+       KeyboardKeyL             =      0x4B,
+       KeyboardKeySEMICOLON     =      0x4C,
+       KeyboardKeyP             =      0x4D,
+       KeyboardKeyDASH          =      0x4E,
+       KeyboardKeyAPOSTROPHE    =      0x52,
+       KeyboardKeyLBRACKET      =      0x54,
+       KeyboardKeyEQUAL         =      0x55,
+       KeyboardKeyNUMPAD_ENTER  =      0x59,
+       KeyboardKeyENTER         =      0x5A,
+       KeyboardKeyRBRACKET      =      0x5B,
+       KeyboardKeyBACKSLASH     =      0x5D,
+       KeyboardKeyEND           =      0x5E,
+       KeyboardKeyLEFT          =      0x5F,
+       KeyboardKeyHOME          =      0x60,
+       KeyboardKeyINSERT        =      0x61,
+       KeyboardKeyDELETE        =      0x62,
+       KeyboardKeyDOWN          =      0x63,
+       KeyboardKeyRIGHT         =      0x64,
+       KeyboardKeyUP            =      0x65,
+       KeyboardKeyBACKSPACE     =      0x66,
+       KeyboardKeyPGDOWN        =      0x67,
+       KeyboardKeyPGUP          =      0x68,
+       KeyboardKeyNUMPAD_1      =      0x69,
+       KeyboardKeyNUMPAD_SLASH  =      0x6A,
+       KeyboardKeyNUMPAD_4      =      0x6B,
+       KeyboardKeyNUMPAD_7      =      0x6C,
+       KeyboardKeyNUMPAD_0      =      0x70,
+       KeyboardKeyNUMPAD_COLON  =      0x71,
+       KeyboardKeyNUMPAD_2      =      0x72,
+       KeyboardKeyNUMPAD_5      =      0x73,
+       KeyboardKeyNUMPAD_6      =      0x74,
+       KeyboardKeyNUMPAD_8      =      0x75,
+       KeyboardKeyESC           =      0x76,
+       KeyboardKeyF11           =      0x78,
+       KeyboardKeyNUMPAD_PLUS   =      0x79,
+       KeyboardKeyNUMPAD_3      =      0x7A,
+       KeyboardKeyNUMPAD_MINUS  =      0x7B,
+       KeyboardKeyNUMPAD_ASTERISK =    0x7C,
+       KeyboardKeyNUMPAD_9      =      0x7D
+};
+      
+typedef struct {
+      unsigned char status;
+      unsigned char lights;
+      unsigned char scancode;
+      unsigned char character;
+} kb_key;
+
+
+extern char getch();
+extern kb_key get_key();
+extern char scancode_to_ascii(unsigned char scancode);
+extern unsigned char get_key_status(unsigned char scancode);
+extern void kb_set_repeat(float rate, int delay);
+extern void kb_set_LEDs(unsigned char status);

SysCore/drivers/keyboard/keyboard.h.deprecated

@@ -0,0 +1,135 @@
+
+#define KB_KEY_LSHIFT 0x81    // 1000 0001
+#define KB_KEY_RSHIFT 0X82    // 1000 0010
+#define KB_KEY_LALT   0X84    // 1000 0100
+#define KB_KEY_RALT   0x88    // 1000 1000
+#define KB_KEY_LCTRL  0x90    // 1001 0000
+#define KB_KEY_RCTRL  0xA0    // 1010 0000
+#define KB_KEY_FSHIFT 0xC0    // 1100 0000
+extern volatile unsigned char KeyModifierStatus;
+
+#define KB_PREFIX_GRAY   0x01       // Gray
+#define KB_PREFIX_BREAK  0x02       // Break code
+#define KB_PREFIX_PAUSE  0x04       // Pause/break key
+#define KB_PREFIX_PAUSE1 0x08       // Recieved first unsigned char from pause/break
+extern volatile unsigned char KeyScancodePrefix;
+
+#define KB_KEY_SCROLL  0xF1   // 1111 0001
+#define KB_KEY_NUM     0xF2   // 1111 0010
+#define KB_KEY_CAPS    0xF4   // 1111 0100
+extern volatile unsigned char KeyLightsStatus;
+
+extern unsigned char KeyboardScancodeSet;
+
+enum KB_KEYS {
+       KB_KEY_PAUSE         =      0x00,
+       KB_KEY_F9            =      0x01,
+       KB_KEY_F7            =      0x02,
+       KB_KEY_F5            =      0X03,
+       KB_KEY_F3            =      0x04,
+       KB_KEY_F1            =      0x05,
+       KB_KEY_F2            =      0x06,
+       KB_KEY_F12           =      0x07,
+       KB_KEY_PRINTSCRN     =      0x08,
+       KB_KEY_F10           =      0x09,
+       KB_KEY_F8            =      0x0A,
+       KB_KEY_F6            =      0x0B,
+       KB_KEY_F4            =      0x0C,
+       KB_KEY_TAB           =      0x0D,
+       KB_KEY_TILDA         =      0x0E,
+       KB_KEY_Q             =      0x15,
+       KB_KEY_1             =      0x16,
+       KB_KEY_Z             =      0x1A,
+       KB_KEY_S             =      0x1B,
+       KB_KEY_A             =      0x1C,
+       KB_KEY_W             =      0x1D,
+       KB_KEY_2             =      0x1E,
+       KB_KEY_LWIN          =      0x1F,
+       KB_KEY_C             =      0x21,
+       KB_KEY_X             =      0x22,
+       KB_KEY_D             =      0x23,
+       KB_KEY_E             =      0x24,
+       KB_KEY_4             =      0x25,
+       KB_KEY_3             =      0x26,
+       KB_KEY_RWIN          =      0x27,
+       KB_KEY_SPACE         =      0x29,
+       KB_KEY_V             =      0x2A,
+       KB_KEY_F             =      0x2B,
+       KB_KEY_T             =      0x2C,
+       KB_KEY_R             =      0x2D,
+       KB_KEY_5             =      0x2E,
+       KB_KEY_MENU          =      0x2F,
+       KB_KEY_N             =      0x31,
+       KB_KEY_B             =      0x32,
+       KB_KEY_H             =      0x33,
+       KB_KEY_G             =      0x34,
+       KB_KEY_Y             =      0x35,
+       KB_KEY_6             =      0x36,
+       KB_KEY_M             =      0x3A,
+       KB_KEY_J             =      0x3B,
+       KB_KEY_U             =      0x3C,
+       KB_KEY_7             =      0x3D,
+       KB_KEY_8             =      0x3E,
+       KB_KEY_COMMA         =      0x41,
+       KB_KEY_K             =      0x42,
+       KB_KEY_I             =      0x43,
+       KB_KEY_O             =      0x44,
+       KB_KEY_0             =      0x45,
+       KB_KEY_9             =      0x46,
+       KB_KEY_PERIOD        =      0x49,
+       KB_KEY_SLASH         =      0x4A,
+       KB_KEY_L             =      0x4B,
+       KB_KEY_SEMICOLON     =      0x4C,
+       KB_KEY_P             =      0x4D,
+       KB_KEY_DASH          =      0x4E,
+       KB_KEY_APOSTROPHE    =      0x52,
+       KB_KEY_LBRACKET      =      0x54,
+       KB_KEY_EQUAL         =      0x55,
+       KB_KEY_NUMPAD_ENTER  =      0x59,
+       KB_KEY_ENTER         =      0x5A,
+       KB_KEY_RBRACKET      =      0x5B,
+       KB_KEY_BACKSLASH     =      0x5D,
+       KB_KEY_END           =      0x5E,
+       KB_KEY_LEFT          =      0x5F,
+       KB_KEY_HOME          =      0x60,
+       KB_KEY_INSERT        =      0x61,
+       KB_KEY_DELETE        =      0x62,
+       KB_KEY_DOWN          =      0x63,
+       KB_KEY_RIGHT         =      0x64,
+       KB_KEY_UP            =      0x65,
+       KB_KEY_BACKSPACE     =      0x66,
+       KB_KEY_PGDOWN        =      0x67,
+       KB_KEY_PGUP          =      0x68,
+       KB_KEY_NUMPAD_1      =      0x69,
+       KB_KEY_NUMPAD_SLASH  =      0x6A,
+       KB_KEY_NUMPAD_4      =      0x6B,
+       KB_KEY_NUMPAD_7      =      0x6C,
+       KB_KEY_NUMPAD_0      =      0x70,
+       KB_KEY_NUMPAD_COLON  =      0x71,
+       KB_KEY_NUMPAD_2      =      0x72,
+       KB_KEY_NUMPAD_5      =      0x73,
+       KB_KEY_NUMPAD_6      =      0x74,
+       KB_KEY_NUMPAD_8      =      0x75,
+       KB_KEY_ESC           =      0x76,
+       KB_KEY_F11           =      0x78,
+       KB_KEY_NUMPAD_PLUS   =      0x79,
+       KB_KEY_NUMPAD_3      =      0x7A,
+       KB_KEY_NUMPAD_MINUS  =      0x7B,
+       KB_KEY_NUMPAD_ASTERISK =    0x7C,
+       KB_KEY_NUMPAD_9      =      0x7D
+};
+      
+typedef struct {
+      unsigned char status;
+      unsigned char lights;
+      unsigned char scancode;
+      unsigned char character;
+} kb_key;
+
+
+extern char getch();
+extern kb_key get_key();
+extern char scancode_to_ascii(unsigned char scancode);
+extern unsigned char get_key_status(unsigned char scancode);
+extern void kb_set_repeat(float rate, int delay);
+extern void kb_set_LEDs(unsigned char status);

SysCore/drivers/makeall.bat

@@ -0,0 +1,158 @@
+@echo off
+set nasm_path=C:\nasm
+set djgpp_path=C:\mingw\bin
+
+goto this
+
+:error
+      @echo.
+      @echo There have been build errors. Building halted.
+      @pause
+      exit
+
+:this
+      @echo Building Drivers...
+      set objpath=..\objects\drivers
+      set incpath=../include
+      %djgpp_path%\gcc.exe -Wall -O -fstrength-reduce -fomit-frame-pointer -nostdinc -fno-builtin -I%incpath% -c -o drivers.o drivers.c 
+      %djgpp_path%\gcc.exe -Wall -O -fstrength-reduce -fomit-frame-pointer -nostdinc -fno-builtin -I%incpath% -c -o BSOD.o BSOD.c 
+
+      if not exist drivers.o goto error
+      if not exist BSOD.o goto error
+      
+      xcopy /Y *.o %objpath%  >nul
+      del *.o
+
+:clock
+      set objpath=..\..\objects\drivers
+      set incpath=../../include
+
+      cd clock
+      @echo       * Compiling internal clock...
+      %djgpp_path%\gcc.exe -Wall -O -fstrength-reduce -fomit-frame-pointer -nostdinc -fno-builtin -I%incpath% -c -o pit.o pit.c 
+      if not exist pit.o goto error
+
+      xcopy /Y *.o %objpath% >nul
+      del *.o
+      
+      cd..
+      
+      
+:floppy
+      cd floppy
+      @echo       * Compiling floppy driver...
+      %djgpp_path%\gcc.exe -Wall -O -fstrength-reduce -fomit-frame-pointer -nostdinc -fno-builtin -I%incpath% -c -o dma.o dma.c 
+      %djgpp_path%\gcc.exe -Wall -O -fstrength-reduce -fomit-frame-pointer -nostdinc -fno-builtin -I%incpath% -c -o floppy.o floppy.c 
+      if not exist dma.o goto error
+      if not exist floppy.o goto error
+      xcopy /Y *.o %objpath% >nul
+      del *.o
+      
+      cd..
+
+:filesys
+      cd filesys
+      @echo       * Compiling file systems...
+      %djgpp_path%\gcc.exe -Wall -O -fstrength-reduce -fomit-frame-pointer -nostdinc -fno-builtin -I%incpath% -c -o fat.o fat.c 
+      rem %djgpp_path%\gcc.exe -Wall -O -fstrength-reduce -fomit-frame-pointer -nostdinc -fno-builtin -I%incpath% -c -o floppy.o floppy.c 
+      if not exist fat.o goto error
+      rem if not exist floppy.o goto error
+      xcopy /Y *.o %objpath% >nul
+      del *.o
+      
+      cd..
+
+:keyboard
+      cd keyboard
+      @echo       * Compiling keyboard driver...
+      %djgpp_path%\gcc.exe -Wall -O -fstrength-reduce -fomit-frame-pointer -nostdinc -fno-builtin -I%incpath% -c -o keyboard.o keyboard.c 
+      if not exist keyboard.o goto error
+      xcopy /Y *.o %objpath% >nul
+      del *.o
+      
+      cd..
+
+
+:cpu
+      cd cpu
+      @echo       * Compiling Central Processing Unit (CPU) modules...
+      %djgpp_path%\gcc.exe -Wall -O -fstrength-reduce -fomit-frame-pointer -nostdinc -fno-builtin -I%incpath% -c -o cpu.o cpu.c 
+      if not exist cpu.o goto error
+
+      xcopy /Y *.o %objpath% >nul
+      del *.o
+      
+      set objpath=..\..\..\objects\drivers
+      set incpath=../../../include
+
+      :gdt
+            @echo             + Global Descriptor Table
+            cd gdt
+
+            rem Assembly File:
+            %nasm_path%\nasm.exe -f aout -o gdt_asm.o gdt.asm
+            if not exist gdt_asm.o goto error
+
+            rem C File:
+            %djgpp_path%\gcc.exe -Wall -O -fstrength-reduce -fomit-frame-pointer -nostdinc -fno-builtin -I%incpath% -c -o gdt.o gdt.c 
+            if not exist gdt.o goto error
+
+            xcopy /Y *.o %objpath% >nul
+            del *.o
+            cd..
+
+      :idt
+            @echo             + Interrupt Descriptor Table
+            cd idt
+            
+            rem Assembly File:
+            %nasm_path%\nasm.exe -f aout -o idt_asm.o idt.asm
+            if not exist idt_asm.o goto error
+
+            rem C File:
+            %djgpp_path%\gcc.exe -Wall -O -fstrength-reduce -fomit-frame-pointer -nostdinc -fno-builtin -I%incpath% -c -o idt.o idt.c 
+            if not exist idt.o goto error
+            
+            xcopy /Y *.o %objpath% >nul
+            del *.o
+            cd..
+            
+      :irq
+            @echo             + Interrupt Requests
+            cd irq
+            
+            rem IRQ Assembly File:
+            %nasm_path%\nasm.exe -f aout -o irq_asm.o irq.asm
+            if not exist irq_asm.o goto error
+
+            rem IRQ C File:
+            %djgpp_path%\gcc.exe -Wall -O -fstrength-reduce -fomit-frame-pointer -nostdinc -fno-builtin -I%incpath% -c -o irq.o irq.c 
+            if not exist irq.o goto error
+            
+            @echo             + Programmable Interrupt Controller
+            rem PIC C File:
+            %djgpp_path%\gcc.exe -Wall -O -fstrength-reduce -fomit-frame-pointer -nostdinc -fno-builtin -I%incpath% -c -o pic.o pic.c 
+            if not exist pic.o goto error
+            
+            xcopy /Y *.o %objpath% >nul
+            del *.o
+            cd..
+            
+      :isrs
+            @echo             + Interrupt Service Routines
+            cd isrs
+            
+            rem Assembly File:
+            %nasm_path%\nasm.exe -f aout -o isrs_asm.o isrs.asm
+            if not exist isrs_asm.o goto error
+
+            rem C File:
+            %djgpp_path%\gcc.exe -Wall -O -fstrength-reduce -fomit-frame-pointer -nostdinc -fno-builtin -I%incpath% -c -o isrs.o isrs.c 
+            if not exist isrs.o goto error
+
+            xcopy /Y *.o %objpath% >nul
+            del *.o
+            cd..
+
+
+      cd..

SysCore/filelist.txt

@@ -0,0 +1,82 @@
+.:
+compile.bat  drivers	   include  loader.asm	makeall.bat   memory   shell
+debug	     filelist.txt  lib	    main.c	makeallh.bat  objects  video
+
+./debug:
+BIOS-bochs-latest  bochs_config.bxrc  ctaos.img  OSDev.log  VGABIOS-lgpl-latest
+
+./drivers:
+BSOD.c	compile.bat  drivers.c	filesys  keyboard     makeall.bat.bak
+clock	cpu	     drivers.h	floppy	 makeall.bat
+
+./drivers/clock:
+clock.h  pit.c
+
+./drivers/cpu:
+compile.bat  cpu.c  cpu.h  gdt	idt  irq  isrs
+
+./drivers/cpu/gdt:
+gdt.asm  gdt.c	gdt.h
+
+./drivers/cpu/idt:
+idt.asm  idt.c	idt.h
+
+./drivers/cpu/irq:
+irq.asm  irq.c	irq.h  pic.c  pic.h
+
+./drivers/cpu/isrs:
+isrs.asm  isrs.c  isrs.h
+
+./drivers/filesys:
+fat.c  fat.h  vfs.c  vfs.h
+
+./drivers/floppy:
+dma.c  dma.h  floppy.c	floppy.h  storage.h
+
+./drivers/keyboard:
+compile.bat  keyboard.deprecated.h  key_list.txt
+keyboard.c   keyboard.h.deprecated
+
+./include:
+bootinfo.h  crtdefs.h  cstring	hal.h	 size_t.h  stdlib.h  system.h
+cctype	    cstdarg    ctype.h	_null.h  stdarg.h  string.h  time.h
+conio.h     cstdint    drivers	regs.h	 stdint.h  sys	     va_list.h
+
+./include/drivers:
+floppy.h  keyboard.h
+
+./include/sys:
+declarat.h
+
+./lib:
+compile.bat  conio.c  ctype.c  stdlib.c  string.c  system.c  time.c
+
+./memory:
+compile.bat  lib  mmngr.asm  mmngr_ph.c  mmngr_ph.h  mmngr_vi.c  mmngr_vi.h
+
+./memory/lib:
+pde.c  pde.h  pte.c  pte.h
+
+./objects:
+compile.bat  drivers   main.o	   mmngr_ph.o  release	 string.o  video
+conio.o      link.ld   mmngr_de.o  mmngr_te.o  shell.o	 system.o
+ctype.o      loader.o  mmngr.o	   mmngr_vi.o  stdlib.o  time.o
+
+./objects/drivers:
+BSOD.o	drivers.o  floppy.o   idt_asm.o  irq.o	     keyboard.o
+cpu.o	fat12.o    gdt_asm.o  idt.o	 isrs_asm.o  pic.o
+dma.o	fat.o	   gdt.o      irq_asm.o  isrs.o      pit.o
+
+./objects/release:
+
+./objects/video:
+vga03h.o
+
+./shell:
+apps.h	compile.bat  shell.c
+
+./video:
+color  compile.bat  vga03h.c  vga03h.h	vga.h
+
+./video/color:
+color.c  color.h

SysCore/hal/cmos/cmos.c

@@ -1,81 +0,0 @@
-/***** cmos.c ********************************************************
- * (c) 2010 CTA Systems Inc. All rights reserved. Glory To God       *
- *                                                                   *
- *          CMOS I/O Routines                                        *
- *          =================                                        *
- *                                                                   *
- * ! IMPORTANT NOTE !  Close interrupts before any CMOS operation    *
- ************************************************************ cta os */
-
-#include <system.h>
-#include <time.h>
-#include "cmos.h"
-
-/*****************************************************************
- *    !!!!!!!!!!          IMPORTANT NOTE          !!!!!!!!!!     *
- *    You should close interrupts before any CMOS operation.     *
- *****************************************************************/
-inline unsigned char i86_cmos_read (unsigned char address)
-{
-      outportb(0x70, address); iowait();
-      return inportb(0x71);
-}
-
-inline void i86_cmos_write (unsigned char address, unsigned char val)
-{
-      outportb(0x70, address); iowait();
-      outportb(0x71, val);
-}
-
-void i86_cmos_write_clock (const TIME* time)
-{
-      unsigned char BCD = ((i86_cmos_read(0x0b)&4)==0) ? 1 : 0;
-      unsigned char ampm = ((i86_cmos_read(0x0b)&2)==0) ? 1 : 0;
-      
-      i86_cmos_write (0, (BCD) ? (time->second%10) | (time->second/10*16) : time->second);        // Seconds
-      i86_cmos_write (2, (BCD) ? (time->minute%10) | (time->minute/10*16) : time->minute);        // Minutes
-
-      if (ampm && time->hour > 12)                                                                // Hours
-            i86_cmos_write (4, (BCD) ? (((time->hour - 12) % 10) | ((time->hour - 12)/10*16) | 0x80) : (time->hour | 0x80) );
-      
-      else if (ampm && time->hour == 0)                                                           // Midnight convention: 12 PM = 00:00
-            i86_cmos_write (4, (BCD) ? 0x92 : 0x8C); 
-      
-      else i86_cmos_write (4, (BCD) ? (time->hour%10) | (time->hour/10*16) : time->hour);         // 24h / AM
-
-      i86_cmos_write (6, (BCD) ? (time->weekday%10) | (time->weekday/10*16) : time->weekday);     // Weekday
-      i86_cmos_write (7, (BCD) ? (time->day%10) | (time->day/10*16) : time->day);                 // Day
-      i86_cmos_write (8, (BCD) ? (time->month%10) | (time->month/10*16) : time->month);           // Month
-      i86_cmos_write (9, (BCD) ? (time->year%10) | (time->year/10*16) : time->year);              // Year
-      i86_cmos_write (0x32, (BCD) ? (time->century%10) | (time->century/10*16) : time->century);  // Century
-}
-
-void i86_cmos_read_clock(TIME* tim)
-{
-      unsigned char BCD = ((i86_cmos_read(0x0b)&4)==0) ? 1 : 0;
-      unsigned char am_pm = ((i86_cmos_read(0x0b)&2)==0) ? 1 : 0;
-      
-      tim->second = (BCD) ? (i86_cmos_read(0x00)%16) + 10*(i86_cmos_read(0x00)/16): i86_cmos_read(0x00);
-      tim->minute = (BCD) ? (i86_cmos_read(0x02)%16) + 10*(i86_cmos_read(0x02)/16): i86_cmos_read(0x02);
-
-      // Time is PM
-      if (am_pm && i86_cmos_read(0x04)&80) {
-            tim->hour = (BCD) ? ((i86_cmos_read(0x04)-0x80)%16) + 10*((i86_cmos_read(0x04)-0x80)/16): i86_cmos_read(0x04)-0x80;
-            tim->hour += 12;
-      }
-      // 24Hour format, or AM
-      else tim->hour = (BCD) ? (i86_cmos_read(0x04)%16) + 10*(i86_cmos_read(0x04)/16): i86_cmos_read(0x04);     
-
-      tim->weekday = (BCD) ? (i86_cmos_read(0x06)%16) + 10*(i86_cmos_read(0x06)/16): i86_cmos_read(0x06);
-      tim->day = (BCD) ? (i86_cmos_read(0x07)%16) + 10*(i86_cmos_read(0x07)/16): i86_cmos_read(0x07);
-      tim->month = (BCD) ? (i86_cmos_read(0x08)%16) + 10*(i86_cmos_read(0x08)/16): i86_cmos_read(0x08);
-      tim->year = (BCD) ? (i86_cmos_read(0x09)%16) + 10*(i86_cmos_read(0x09)/16): i86_cmos_read(0x09);
-      tim->century = (BCD) ? (i86_cmos_read(0x32)%16) + 10*(i86_cmos_read(0x32)/16): i86_cmos_read(0x32);
-}
-
-
-unsigned char i86_cmos_read_floppy_drives ()
-{
-      outportb (0x70, 0x10);
-      return inportb(0x71);
-}

SysCore/hal/cmos/cmos.h

@@ -1,17 +0,0 @@
-/***** cmos.h ********************************************************
- * (c) 2010 CTA Systems Inc. All rights reserved.                    *
- *                                                                   *
- *          CMOS I/O Routines                                        *
- *          =================                                        *
- *                                                                   *
- * ! IMPORTANT NOTE !  Close interrupts before any CMOS operation    *
- ************************************************************ cta os */
-
-#ifndef __CMOS_H
-#define __CMOS_H
-
-extern void i86_cmos_write_clock (const TIME* time);
-extern void i86_cmos_read_clock (TIME *tim);
-extern unsigned char i86_cmos_read_floppy_drives ();
-
-#endif

SysCore/hal/cmos/compile.bat

@@ -1,18 +0,0 @@
-@echo off
-rem The name of the loader assembly file (without extension, must be .asm):
-set loader_name=loader
-
-rem NASM and DJGPP executable paths:
-set nasm_path=C:\nasm
-set djgpp_path=C:\DJGPP\bin
-set objpath=../../objects
-set incpath=../../include
-
-@echo on
-%djgpp_path%\gcc.exe -Wall -O -fstrength-reduce -fomit-frame-pointer -nostdinc -fno-builtin -I%incpath% -c -o %objpath%/cmos.o cmos.c 
-
-@echo off
-@echo .
-@echo Done!
-
-@pause

SysCore/hal/cpu/cpu.c

@@ -1,28 +0,0 @@
-#include <system.h>
-#include "cpu.h"
-#include "../gdt/gdt.h"
-#include "../idt/idt.h"
-#define cpuid(in, a, b, c, d) __asm__("cpuid": "=a" (a), "=b" (b), "=c" (c), "=d" (d) : "a" (in));
-
-// initializes cpu resources
-void i86_cpu_initialize()
-{
-	// initialize processor tables
-      i86_gdt_install();
-      i86_idt_install();
-}
-
-void i86_cpu_shutdown()
-{
-
-}
-
-char* i86_cpu_get_vender()
-{
-      dword unused;
-      dword static arr[3];
-
-      cpuid(0, unused, arr[0], arr[2], arr[1]);
-
-      return (char*) arr;
-}

SysCore/hal/cpu/cpu.h

@@ -1,29 +0,0 @@
-#ifndef _CPU_H_INCLUDED
-#define _CPU_H_INCLUDED
-//****************************************************************************
-//**
-//**    cpu.h
-//**
-//**	This is the processor interface. Everything outside of this module
-//**	must use this interface when working on processor data.
-//**
-//**	A processor is a module that manages the very basic data structures
-//**	and data within the system. The processor interface provides the interface
-//**	for managing processors, processor cores, accessing processor structures,
-//**	and more
-//**
-//****************************************************************************
-
-#include <stdint.h>
-#include <regs.h>
-
-//! initialize the processors
-extern void i86_cpu_initialize ();
-
-//! shutdown the processors
-extern void i86_cpu_shutdown ();
-
-//! get cpu vender
-extern char* i86_cpu_get_vender ();
-
-#endif

SysCore/hal/dma/dma.c

@@ -1,137 +0,0 @@
-/***** dma.c *********************************************************
- * (c) 2010 CTA Systems Inc. All rights reserved. Glory To God       *
- *                                                                   *
- *         Direct Memory Access (DMA) Routines                       *
- *         ===================================                       *
- *                                                                   *
- ************************************************************ cta os */
-
-#include "dma.h"
-#include <system.h>
-
-enum DMA0_IO {
-    DMA0_STATUS_REG = 0x08,
-    DMA0_COMMAND_REG = 0x08,
-    DMA0_REQUEST_REG = 0x09,
-    DMA0_CHANMASK_REG = 0x0a,
-    DMA0_MODE_REG = 0x0b,
-    DMA0_CLEARBYTE_FLIPFLOP_REG = 0x0c,
-    DMA0_TEMP_REG = 0x0d,
-    DMA0_MASTER_CLEAR_REG = 0x0d,
-    DMA0_CLEAR_MASK_REG = 0x0e,
-    DMA0_MASK_REG = 0x0f
-};
-
-enum DMA1_IO {
-    DMA1_STATUS_REG = 0xd0,
-    DMA1_COMMAND_REG = 0xd0,
-    DMA1_REQUEST_REG = 0xd2,
-    DMA1_CHANMASK_REG = 0xd4,
-    DMA1_MODE_REG = 0xd6,
-    DMA1_CLEARBYTE_FLIPFLOP_REG = 0xd8,
-    DMA1_INTER_REG = 0xda,
-    DMA1_UNMASK_ALL_REG = 0xdc,
-    DMA1_MASK_REG = 0xde
-};
-
-void i86_dma_set_address(unsigned short channel, unsigned char low, unsigned char high)
-{
-    if (channel > 7) return;   // Ignore if channel > 7
-
-    // Calculate port
-    unsigned short port = (channel >= 4) ? 4*(channel - 4) + 0xc0 : 2*channel;
-
-    // Set address
-    outportb (port, low);
-    outportb (port, high);
-}
-
-
-void i86_dma_set_count (unsigned short channel, unsigned char low, unsigned char high)
-{
-    if (channel > 7) return;   // Ignore if channel > 7
-
-    // Calculate port
-    unsigned short port = (channel >= 4) ?  4*(channel - 4) + 0xc2
-                                         :  (2*channel) + 1;
-
-    // Set count
-    outportb (port, low);
-    outportb (port, high);
-}
-
-
-void i86_dma_set_external_page_registers (unsigned char channel, unsigned char val)
-{
-    unsigned short port = 0;
-
-    switch (channel) {
-        case 1: port = 0x83; break;
-        case 2: port = 0x81; break;
-        case 3: port = 0x82; break;
-        // <- nothing should ever write to chan 4
-        case 5: port = 0x89; break;
-        case 6: port = 0x87; break;
-        case 7: port = 0x88; break;
-        default: if (channel == 4 || channel > 14) return;
-    }
-
-    outportb(port, val);
-}
-
-
-void i86_dma_mask_channel (unsigned char channel)
-{
-    if (channel <= 4) outportb (DMA0_CHANMASK_REG, (1<< (channel -1)));
-    else outportb (DMA1_CHANMASK_REG, (1<< (channel -5)));
-}
-
-
-void i86_dma_unmask_channel (unsigned char channel)
-{
-    if (channel <= 4) outportb (DMA0_CHANMASK_REG, channel);
-    else outportb (DMA1_CHANMASK_REG, channel);
-}
-
-
-void i86_dma_unmask_all()
-{
-    outportb (DMA1_UNMASK_ALL_REG, 0xff);
-}
-
-
-void i86_dma_reset_flipflop (unsigned char dma)
-{
-    switch (dma) {
-        case 0: outportb (DMA0_CLEARBYTE_FLIPFLOP_REG, 0xff);
-        case 1: outportb (DMA1_CLEARBYTE_FLIPFLOP_REG, 0xff);
-    }
-}
-
-void i86_dma_reset ()
-{
-    outportb (DMA0_TEMP_REG, 0xff);
-}
-
-
-void i86_dma_set_mode(unsigned char channel, unsigned char mode)
-{
-    unsigned char dma = (channel < 4) ? 0:1;
-    unsigned char chan = (dma == 0) ? channel : channel-4;
-
-    i86_dma_mask_channel (channel);
-    outportb ((channel < 4) ? DMA0_MODE_REG : DMA1_MODE_REG, chan | mode);
-    i86_dma_unmask_all ();
-}
-
-
-void i86_dma_set_read (unsigned char channel)
-{
-    i86_dma_set_mode (channel, DMA_MODE_READ_TRANSFER | DMA_MODE_TRANSFER_SINGLE);
-}
-
-
-void i86_dma_set_write (unsigned char channel)
-{
-    i86_dma_set_mode (channel, DMA_MODE_WRITE_TRANSFER | DMA_MODE_TRANSFER_SINGLE);
-}

SysCore/hal/dma/dma.h

@@ -1,42 +0,0 @@
-/***** dma.h *********************************************************
- * (c) 2010 CTA Systems Inc. All rights reserved. Glory To God       *
- *                                                                   *
- *         Direct Memory Access (DMA) Routines                       *
- *         ===================================                       *
- *                                                                   *
- ************************************************************ cta os */
-
-#ifndef __DMA__H__
-#define __DMA__H__
-
-enum DMA_MODE_REG_MASK {
-    DMA_MODE_MASK_SEL = 3,
-
-    DMA_MODE_MASK_TRA = 0xc,
-    DMA_MODE_SELF_TEST = 0,
-    DMA_MODE_READ_TRANSFER = 4,
-    DMA_MODE_WRITE_TRANSFER = 8,
-
-    DMA_MODE_MASK_AUTO = 0x10,
-    DMA_MODE_MASK_IDEC = 0x20,
-
-    DMA_MODE_MASK = 0xc0,
-    DMA_MODE_TRANSFER_ON_DEMAND = 0,
-    DMA_MODE_TRANSFER_SINGLE = 0x40,
-    DMA_MODE_TRANSFER_BLOCK = 0x80,
-    DMA_MODE_TRANSFER_CASCADE = 0xC0
-};
-
-extern void i86_dma_set_address(unsigned short channel, unsigned char low, unsigned char high);
-extern void i86_dma_set_count (unsigned short channel, unsigned char low, unsigned char high);
-extern void i86_dma_set_external_page_registers (unsigned char channel, unsigned char val);
-extern void i86_dma_mask_channel (unsigned char channel);
-extern void i86_dma_unmask_channel (unsigned char channel);
-extern void i86_dma_unmask_all();
-extern void i86_dma_reset_flipflop (unsigned char dma);
-extern void i86_dma_reset ();
-extern void i86_dma_set_mode(unsigned char channel, unsigned char mode);
-extern void i86_dma_set_read (unsigned char channel);
-extern void i86_dma_set_write (unsigned char channel);
-
-#endif

SysCore/hal/floppy/compile.bat

@@ -1,18 +0,0 @@
-@echo off
-rem The name of the loader assembly file (without extension, must be .asm):
-set loader_name=loader
-
-rem NASM and DJGPP executable paths:
-set nasm_path=C:\nasm
-set djgpp_path=C:\DJGPP\bin
-set objpath=../../objects
-set incpath=../../include
-
-@echo on
-%djgpp_path%\gcc.exe -Wall -O -fstrength-reduce -fomit-frame-pointer -nostdinc -fno-builtin -I%incpath% -c -o %objpath%/floppy.o floppy.c 
-
-@echo off
-@echo .
-@echo Done!
-
-@pause

SysCore/hal/floppy/floppy.c

@@ -1,356 +0,0 @@
-/***** floppy.c ******************************************************
- * (c) 2010 CTA Systems Inc. All rights reserved. Glory To God       *
- *                                                                   *
- *         Floppy Drive I/O Routines                                 *
- *         =========================                                 *
- *                                                                   *
- ************************************************************ cta os */
-#include "../irq/irq.h"
-#include "../dma/dma.h"
-#include <system.h>
-#include <conio.h>
-
-
-// Used ports:
-// ***********
-// Digital Output Register (DOR):         0x3f2
-// Main Status Register (MSR):            0x3f4
-// Data Register (FIFO):                  0x3f5
-// Configuration Control Register (CTRL): 0x3f7
-
-unsigned char floppy_drives_installed;
-volatile unsigned char i86_floppy_new_interrupt;
-struct {
-     unsigned char type;
-     unsigned char data_rate;
-     unsigned char step_rate_time;
-     unsigned char head_load_time;
-     unsigned char head_unload_time;
-     unsigned char sectors_per_track;
-} fd[2];
-
-
-// Initialize DMA
-unsigned char i86_floppy_initialize_dma(unsigned char* buffer, unsigned length)
-{
-    union { unsigned char byt[4]; // Low[0], Mid[1], Hi[2]
-            unsigned long l;
-    } a, c;
-
-    a.l = (unsigned) buffer;
-    c.l = (unsigned) length-1;
-
-    // Check for buffer issues
-    if ((a.l >> 24) || (c.l >> 16) || (((a.l & 0xffff)+c.l) >> 16)) return 0;
-
-    i86_dma_reset();
-    i86_dma_mask_channel(2);                    // Mask channel 2
-    i86_dma_reset_flipflop(1);                  // FlipFlop reset on DMA1
-
-    i86_dma_set_address(2, a.byt[0], a.byt[1]); // Buffer address
-    i86_dma_reset_flipflop(1);                  // FlipFlop reset on DMA2
-
-    i86_dma_set_count(2, c.byt[0], c.byt[1]);   // Set count
-    i86_dma_set_read(2);
-    i86_dma_unmask_all();
-
-    return 1;
-}
-
-
-
-
-inline void i86_floppy_disable_controller() {
-    outportb (0x3F2, 0);
-}
-
-inline void i86_floppy_enable_controller() {
-    outportb (0x3F2, 4 | 8);
-}
-
-
-inline unsigned char i86_floppy_send_command (unsigned char command)
-{
-    int i;
-    for (i = 0; i < 750; i++)
-        if (inportb(0x3F4) & 128) {
-            outportb(0x3F5, command); return 1;
-        }
-    return 0;
-}
-
-
-inline unsigned char i86_floppy_read_data ()
-{
-    int i;
-    for (i = 0; i < 750; i++)
-        if (inportb(0x3F4) & 0x80)
-            return inportb(0x3F5);
-    return 0;
-}
-
-
-inline void i86_floppy_check_int(unsigned* st0, unsigned* cyl)
-{
-    i86_floppy_send_command(0x8);
-    *st0 = i86_floppy_read_data();
-    *cyl = i86_floppy_read_data();
-}
-
-
-extern unsigned i86_pit_get_tick_count();
-extern unsigned i86_pit_get_frequency();
-
-
-inline unsigned char i86_floppy_wait()
-{
-    unsigned temp = i86_pit_get_tick_count();
-    unsigned freq = i86_pit_get_frequency();
-    
-    while (i86_floppy_new_interrupt==0)
-           if (temp + (3*freq) == i86_pit_get_frequency()) return 0;  // timeout
-
-    i86_floppy_new_interrupt = 0;
-    return 1;
-}
-
-
-void i86_floppy_motor (unsigned char drive, unsigned char on)
-{
-    if (drive >= floppy_drives_installed) return;
-
-    // Read DOR register
-    unsigned char dor = inportb(0x3F2);
-
-    // Un/set selected drive motor
-    if (on) dor |= drive << 4;
-    else dor &= ~(drive << 4);
-
-    // Write DOR
-    outportb (0x3F2, dor);
-
-    // Wait a fifth of a second for motor to turn on
-    unsigned temp = i86_pit_get_tick_count();
-    unsigned freq = i86_pit_get_frequency();
-    while (temp + (freq/5) > i86_pit_get_tick_count());
-}
-
-
-void i86_floppy_handler(ISR_stack_regs *r)
-{
-    i86_floppy_new_interrupt = 1;
-}
-
-
-void i86_floppy_drive_data (unsigned char drv, unsigned char dma)
-{
-    unsigned data = 0;
-    if (drv >= floppy_drives_installed) return;
-
-    outportb(0x3F7, fd[drv].data_rate);
-
-    i86_floppy_send_command (0x3);
-
-    data = ((fd[drv].step_rate_time & 0xf) << 4) | (fd[drv].head_unload_time & 0xf);
-    i86_floppy_send_command (data);
-
-    data = (fd[drv].head_load_time <<1 ) | (dma) ? 1 : 0;
-    i86_floppy_send_command (data);
-}
-
-
-inline void i86_floppy_select(unsigned char drive)
-{
-      if (drive >= floppy_drives_installed) return;
-      
-      // Send mechanical drive data
-      i86_floppy_drive_data(drive, 1);
-
-      // Select drive in DOR register
-      outportb (0x3F2, 4 | 8 | drive);
-
-}
-
-
-unsigned char i86_floppy_calibrate(unsigned drive)
-{
-    unsigned st0, cyl;
-
-    if (drive >= floppy_drives_installed) return 0;
-
-    i86_floppy_motor (drive, 1);
-
-    int i;
-    for (i = 0; i < 15; i++) {
-        i86_floppy_new_interrupt = 0;
-        i86_floppy_send_command(0x7);
-        i86_floppy_send_command(drive);
-        i86_floppy_wait();
-        i86_floppy_check_int(&st0, &cyl);
-
-        if (!cyl) {
-            i86_floppy_motor(drive, 0);
-            return 1;
-        }
-    }
-    i86_floppy_motor(drive, 0);
-    return 0;
-}
-
-
-void i86_floppy_reset()
-{
-    unsigned st0, cyl;
-
-    i86_floppy_new_interrupt = 0;
-    i86_floppy_disable_controller();
-    i86_floppy_enable_controller();
-    i86_floppy_wait();
-   
-    int i;
-    for (i = 0; i < 4; i++)
-        i86_floppy_check_int(&st0, &cyl);
-
-    unsigned char drive;
-    for (drive = 0; drive < floppy_drives_installed; drive++) {
-      i86_floppy_drive_data(drive, 1);
-      i86_floppy_calibrate(drive);
-    }
-}
-
-
-void i86_floppy_read_sector_imp (unsigned* where, unsigned char drive, unsigned char head, unsigned char track, unsigned char sector)
-{
-    unsigned st0, cyl;
-
-    i86_floppy_select (drive);
-    i86_floppy_initialize_dma((unsigned char*) where, 512);
-    i86_dma_set_read(2);
-
-    i86_floppy_new_interrupt = 0;
-
-    i86_floppy_send_command(0x06 | 0x80 | 0x40 );
-    i86_floppy_send_command(head<<2 | drive);
-    i86_floppy_send_command(track);
-    i86_floppy_send_command(head);
-    i86_floppy_send_command(sector);
-    i86_floppy_send_command(0x02);
-    i86_floppy_send_command( ((sector+1) >= fd[drive].sectors_per_track) ? fd[drive].sectors_per_track : sector+1);
-    i86_floppy_send_command(0x1b);
-    i86_floppy_send_command(0xff);
-
-    i86_floppy_wait();
-
-    int i;
-    for (i = 0; i < 7; i++) i86_floppy_read_data();
-
-    i86_floppy_check_int (&st0, &cyl);
-}
-
-
-unsigned char i86_floppy_seek (unsigned drive, unsigned cyl, unsigned head)
-{
-    unsigned st0, cyl0;
-
-    if (drive >= floppy_drives_installed) return 0;
-
-    i86_floppy_select (drive);
-
-    int i;
-    for (i = 0; i < 20; i++) {
-        i86_floppy_new_interrupt = 0;
-        i86_floppy_send_command (0xF);
-        i86_floppy_send_command ( (head) << 2 | drive);
-        i86_floppy_send_command (cyl);
-
-        i86_floppy_wait();
-        i86_floppy_check_int(&st0, &cyl0);
-
-        if (cyl0 == cyl) return 1;
-    }
-    return 0;
-}
-
-
-inline void i86_floppy_lba_to_chs (int lba, unsigned char drive, unsigned char *head, unsigned char *track, unsigned char *sectors)
-{
-    *head = (lba % (fd[drive].sectors_per_track * 2)) / fd[drive].sectors_per_track;
-    *track = lba / (fd[drive].sectors_per_track * 2);
-    *sectors = lba % fd[drive].sectors_per_track + 1;
-}
-
-extern unsigned char i86_cmos_read_floppy_drives();
-const char* types[] = {
-      "Nonexistant", "5.25\", unsupported.", "5.25\", unsupported.",
-      "3.5\", 720kb", "3.5\", 1.44mb", "3.5\", 2.88 mb"};
-
-void i86_floppy_install()
-{
-    unsigned char temp = i86_cmos_read_floppy_drives();
-    int i;
-
-    // Set fd0 and fd1 types
-    fd[1].type = temp & 0xf;
-    fd[0].type = temp >> 4;
-    
-    // SRT = 16 - (ms * datarate / 500000);
-    // HLT = ms * datarate / 1000000
-    // HUT = ms * datarate / 8000000
-
-    // Set up
-    for (i = 0; i < 2; i++) {
-        if (fd[i].type >= 3) floppy_drives_installed++; // 5.25" drives unsupported
-        if (fd[i].type == 3) {  // 720 kb, DD
-                fd[i].data_rate = 2;      // speed = 250 kbps
-                fd[i].step_rate_time = 12; // 16 - (ms * 250000 / 500000), ms = 8
-                fd[i].head_load_time = 7;
-                fd[i].head_unload_time = 7;
-                fd[i].sectors_per_track = 9;
-        }
-        else if (fd[i].type == 4) { // 1.44 MB, HD
-                fd[i].data_rate = 0;      // speed = 500 kbps
-                fd[i].step_rate_time = 8;
-                fd[i].head_load_time = 15;
-                fd[i].head_unload_time = 15;
-                fd[i].sectors_per_track = 18;
-        }
-        else if (fd[i].type == 5) { // 2.88 MB, ED
-                fd[i].data_rate = 3;      // speed = 1000 kbps;
-                fd[i].step_rate_time = 0;
-                fd[i].head_load_time = 30;
-                fd[i].head_unload_time = 30;
-                fd[i].sectors_per_track = 36;
-        }
-    }
-    if (floppy_drives_installed == 0) return;       // No drives to set
-
-    // Install handler
-    i86_irq_install_handler(6, i86_floppy_handler);
-    i86_floppy_reset();
-}
-
-
-unsigned char i86_floppy_driver_enabled()
-{
-    return (floppy_drives_installed>0);
-}
-
-
-unsigned* i86_read_sector (unsigned* where, unsigned char drive, int sectorLBA)
-{
-    if (drive >= floppy_drives_installed) return 0;
-    if ((unsigned)(where) > (0xFFFF - 513)) return 0;
-
-    // convert lba to chs
-    unsigned head, track, sector;
-    i86_floppy_lba_to_chs(sectorLBA, drive, (unsigned char*)&head, (unsigned char*)&track, (unsigned char*) &sector);
-
-    // start motor
-    i86_floppy_motor(drive, 1);
-    if (!i86_floppy_seek(drive, track, head)) return 0;
-
-    i86_floppy_read_sector_imp(where, drive, head, track, sector);
-    i86_floppy_motor(drive, 0);
-
-    return (unsigned*)where;
-}

SysCore/hal/floppy/floppy.h

@@ -1,19 +0,0 @@
-/***** floppy.h ******************************************************
- * (c) 2010 CTA Systems Inc. All rights reserved. Glory To God       *
- *                                                                   *
- *         Floppy Drive I/O Routines                                 *
- *         =========================                                 *
- *                                                                   *
- ************************************************************ cta os */
-
-extern unsigned char i86_floppy_initialize_dma(unsigned char* buffer, unsigned length);
-extern void i86_floppy_motor (unsigned char drive, unsigned char on);
-extern void i86_floppy_handler(ISR_stack_regs *r);
-extern void i86_floppy_drive_data (unsigned char drv, unsigned char dma);
-extern unsigned char i86_floppy_calibrate(unsigned drive);
-extern void i86_floppy_reset();
-extern void i86_floppy_read_sector_imp (unsigned* where, unsigned char drive, unsigned char head, unsigned char track, unsigned char sector);
-extern unsigned char i86_floppy_seek (unsigned drive, unsigned cyl, unsigned head);
-extern void i86_floppy_install();
-extern unsigned char i86_floppy_driver_enabled();
-extern unsigned* i86_read_sector (unsigned* where, unsigned char drive, int sectorLBA);

SysCore/hal/gdt/compile.bat

@@ -1,19 +0,0 @@
-@echo off
-rem The name of the loader assembly file (without extension, must be .asm):
-set loader_name=loader
-
-rem NASM and DJGPP executable paths:
-set nasm_path=C:\nasm
-set djgpp_path=C:\DJGPP\bin
-set objpath=../../objects
-set incpath=../../include
-
-@echo on
-%nasm_path%\nasm.exe -f aout -o %objpath%/gdt_asm.o gdt.asm
-%djgpp_path%\gcc.exe -Wall -O -fstrength-reduce -fomit-frame-pointer -nostdinc -fno-builtin -I%incpath% -c -o %objpath%/gdt.o gdt.c 
-
-@echo off
-@echo .
-@echo Done!
-
-@pause

SysCore/hal/hal.c

@@ -1,141 +0,0 @@
-#include <system.h>
-#include <time.h>
-#include <hal.h>
-#include "cpu/cpu.h"
-#include "gdt/gdt.h"
-#include "idt/idt.h"
-#include "pic/pic.h"
-#include "pit/pit.h"
-#include "cmos/cmos.h"
-#include "irq/irq.h"
-#include "isrs/isrs.h"
-#include "keyboard/keyus.h"
-#include "floppy/floppy.h"
-
-// initialize hardware devices
-void i86_hal_initialize () {
-
-    // initialize motherboard controllers and system timer
-        i86_cpu_initialize ();  // (install GDT, IDT)
-        i86_isrs_install();     // (install ISR handler)
-        i86_irq_install();      // (install IRQ handler)
-      
-    // install PIT and system clock; pit at 100 Hz
-        i86_kb_install_partone();
-        i86_cmos_read_clock((TIME*)&_internal_clock);
-	i86_pit_install (100);
-	i86_kb_install_parttwo();
-	
-    // enable interrupts
-        i86_start_interrupts();
-
-        i86_floppy_install();
-}
-
-// shutdown hardware devices
-int i86_hal_shutdown () {
-
-	i86_cpu_shutdown ();
-	return 0;
-}
-
-void reboot()
-{
-    unsigned char good = 0x02;
-    while ((good & 0x02) != 0)
-        good = inportb(0x64);
-    outportb(0x64, 0xFE);
-    __asm__ __volatile__ ("hlt");
-}
-
-//! output sound to speaker
-void 	sound (unsigned frequency) {
-
-	//! sets frequency for speaker. frequency of 0 disables speaker
-	outportb (0x61, 3 | (unsigned char)(frequency<<2) );
-}
-
-
-//! returns cpu vender
-const char* get_cpu_vender () {
-
-	return i86_cpu_get_vender();
-}
-
-
-/***************************************************************************************
- *                     Keyboard Routines                                               *
- ***************************************************************************************/
-/*char getch()
-{
- -> moved in conio library
-}*/
-
-char scancode_to_ascii(unsigned char scancode, unsigned char status)
-{
-      if ((status&1) || (status&2)) return kbdus_map_shift[scancode];
-      else return kbdus_map[scancode];
-}
-
-unsigned char get_key_status (unsigned char scancode)
-{
-      if (scancode&0xF0) return kb_lights_status&0x0F;
-      else if (scancode&0x80) return kb_modifier_status&0x7F;
-      
-      return i86_kb_get_key(scancode);
-}
-
-/***************************************
- *       Set repeat rate/delay         *
- ***************************************
- Values for inter-character delay (bits 4-0)
- (characters per second; default is 10.9)
-     |  0 |  1 |  2 |  3 |  4 |  5 |  6 |  7 
- ----+----+----+----+----+----+----+----+----
-  0  |30.0|26.7|24.0|21.8|20.0|18.5|17.1|16.0
-  8  |15.0|13.3|12.0|10.9|10.0|9.2 |8.6 |8.0
-  16 |7.5 |6.7 |6.0 |5.5 |5.0 |4.6 |4.3 |4.0
-  24 |3.7 |3.3 |3.0 |2.7 |2.5 |2.3 |2.1 |2.0
-  
- Values for delay:
- (miliseconds; default is 500)
-    0 |   1 |   2 |   3
- -----+-----+-----+-----
-  250 | 500 | 750 | 1000
-  
- ***************************************/ 
-void kb_set_repeat(float rate, int delay){
-      float rates[] = {30.0, 26.7, 24.0, 21.8, 20.0, 18.5, 17.1, 16.0, 15.0, 13.3, 12.0,
-                        10.9, 10.0, 9.2, 8.6, 8.0, 7.5, 6.7, 6.0, 5.5, 5.0, 4.6, 4.3, 4.0,
-                        3.7, 3.3, 3.0, 2.7, 2.5, 2.3, 2.1, 2.0} ;
-
-
-      unsigned char r,d;
-      
-      for (r = 0; rate != rates[r] && r < 32; r++)
-      if (rate==32) return;
-      
-      switch(delay) {
-            case 250: d = 0; break;
-            case 500: d = 1; break;
-            case 750: d = 2; break;
-            case 1000: d = 3; break;
-            default: return;
-            }
-
-      i86_kb_set_repeat(r,d);
-}
-
-
-/***************************************
- *       Set keyboard LEDs             *
- ***************************************
- +-----------+-------+-------+--------+
- | Bits 7-3  | Bit 2 | Bit 1 | Bit 0  |
- |   0       | Caps  | Num   | Scroll |
- |(reserved) |  lock |  lock |  lock  |
- +-----------+-------+-------+--------+
- ***************************************/ 
-void kb_set_LEDs(unsigned char status) {
-      i86_kb_set_LEDs(status);
-}

SysCore/hal/idt/compile.bat

@@ -1,19 +0,0 @@
-@echo off
-rem The name of the loader assembly file (without extension, must be .asm):
-set loader_name=loader
-
-rem NASM and DJGPP executable paths:
-set nasm_path=C:\nasm
-set djgpp_path=C:\DJGPP\bin
-set objpath=../../objects
-set incpath=../../include
-
-@echo on
-%nasm_path%\nasm.exe -f aout -o %objpath%/idt_asm.o idt.asm
-%djgpp_path%\gcc.exe -Wall -O -fstrength-reduce -fomit-frame-pointer -nostdinc -fno-builtin -I%incpath% -c -o %objpath%/idt.o idt.c 
-
-@echo off
-@echo .
-@echo Done!
-
-@pause

SysCore/hal/irq/compile.bat

@@ -1,19 +0,0 @@
-@echo off
-rem The name of the loader assembly file (without extension, must be .asm):
-set loader_name=loader
-
-rem NASM and DJGPP executable paths:
-set nasm_path=C:\nasm
-set djgpp_path=C:\DJGPP\bin
-set objpath=../../objects
-set incpath=../../include
-
-@echo on
-%nasm_path%\nasm.exe -f aout -o %objpath%/irq_asm.o irq.asm
-%djgpp_path%\gcc.exe -Wall -O -fstrength-reduce -fomit-frame-pointer -nostdinc -fno-builtin -I%incpath% -c -o %objpath%/irq.o irq.c 
-
-@echo off
-@echo .
-@echo Done!
-
-@pause

SysCore/hal/irq/irq.c

@@ -1,79 +0,0 @@
-#include <system.h>
-#include "../idt/idt.h"
-#include "../pic/pic.h"
-#include "irq.h"
-/* This array is actually an array of function pointers. We use
-*  this to handle custom IRQ handlers for a given IRQ */
-void *irq_routines[16] =
-{
-    0, 0, 0, 0, 0, 0, 0, 0,
-    0, 0, 0, 0, 0, 0, 0, 0
-};
-
-/* This installs a custom IRQ handler for the given IRQ */
-void i86_irq_install_handler (int irq, void (*handler)(ISR_stack_regs *r))
-{
-      irq_routines[irq] = handler;
-}
-
-void i86_irq_uninstall_handler (int irq)
-{
-      irq_routines[irq] = 0;
-}
-
-
-
-/* We first remap the interrupt controllers, and then we install
-*  the appropriate ISRs to the correct entries in the IDT. This
-*  is just like installing the exception handlers */
-void i86_irq_install()
-{
-      i86_pic_remap(32,40);
-      
-      i86_idt_set_gate(32, (unsigned)i86_irq0, 0x08, 0x8E);
-      i86_idt_set_gate(33, (unsigned)i86_irq1, 0x08, 0x8E);
-      i86_idt_set_gate(34, (unsigned)i86_irq2, 0x08, 0x8E);
-      i86_idt_set_gate(35, (unsigned)i86_irq3, 0x08, 0x8E);
-      i86_idt_set_gate(36, (unsigned)i86_irq4, 0x08, 0x8E);
-      i86_idt_set_gate(37, (unsigned)i86_irq5, 0x08, 0x8E);
-      i86_idt_set_gate(38, (unsigned)i86_irq6, 0x08, 0x8E);
-      i86_idt_set_gate(39, (unsigned)i86_irq7, 0x08, 0x8E);
-      i86_idt_set_gate(40, (unsigned)i86_irq8, 0x08, 0x8E);
-      i86_idt_set_gate(41, (unsigned)i86_irq9, 0x08, 0x8E);
-      i86_idt_set_gate(42, (unsigned)i86_irq10, 0x08, 0x8E);
-      i86_idt_set_gate(43, (unsigned)i86_irq11, 0x08, 0x8E);
-      i86_idt_set_gate(44, (unsigned)i86_irq12, 0x08, 0x8E);
-      i86_idt_set_gate(45, (unsigned)i86_irq13, 0x08, 0x8E);
-      i86_idt_set_gate(46, (unsigned)i86_irq14, 0x08, 0x8E);
-      i86_idt_set_gate(47, (unsigned)i86_irq15, 0x08, 0x8E);
-}
-
-/* Each of the IRQ ISRs point to this function, rather than
-*  the 'fault_handler' in 'isrs.c'. The IRQ Controllers need
-*  to be told when you are done servicing them, so you need
-*  to send them an "End of Interrupt" command (0x20). There
-*  are two 8259 chips: The first exists at 0x20, the second
-*  exists at 0xA0. If the second controller (an IRQ from 8 to
-*  15) gets an interrupt, you need to acknowledge the
-*  interrupt at BOTH controllers, otherwise, you only send
-*  an EOI command to the first controller. If you don't send
-*  an EOI, you won't raise any more IRQs */
-void i86_irq_handler (ISR_stack_regs *r)
-{
-      /* This is a blank function pointer */
-      void (*handler)(ISR_stack_regs *r);
-      
-    /* Find out if we have a custom handler to run for this
-    *  IRQ, and then finally, run it */
-      handler = irq_routines[r->int_no - 32];
-      if (handler) handler(r);
-      
-    /* If the IDT entry that was invoked was greater than 40
-    *  (meaning IRQ8 - 15), then we need to send an EOI to
-    *  the slave controller */
-      if (r->int_no >=40) outportb(0x0A, 0x20);
-      
-    /* In either case, we need to send an EOI to the master
-    *  interrupt controller too */
-      outportb(0x20, 0x20);
-}

SysCore/hal/irq/irq.h

@@ -1,31 +0,0 @@
-#ifndef __IRQ_H
-#define __IRQ_H
-
-#include <regs.h>
-
-/* These are own ISRs that point to our special IRQ handler
-*  instead of the regular 'fault_handler' function */
-
-extern void i86_irq0();
-extern void i86_irq1();
-extern void i86_irq2();
-extern void i86_irq3();
-extern void i86_irq4();
-extern void i86_irq5();
-extern void i86_irq6();
-extern void i86_irq7();
-extern void i86_irq8();
-extern void i86_irq9();
-extern void i86_irq10();
-extern void i86_irq11();
-extern void i86_irq12();
-extern void i86_irq13();
-extern void i86_irq14();
-extern void i86_irq15();
-
-extern void i86_irq_install_handler (int irq, void (*handler)(ISR_stack_regs *r));
-extern void i86_irq_uninstall_handler (int irq);
-extern void i86_irq_install();
-extern void i86_irq_handler (ISR_stack_regs *r);
-
-#endif

SysCore/hal/isrs/compile.bat

@@ -1,20 +0,0 @@
-@echo off
-rem The name of the loader assembly file (without extension, must be .asm):
-set loader_name=loader
-
-rem NASM and DJGPP executable paths:
-set nasm_path=C:\nasm
-set djgpp_path=C:\DJGPP\bin
-set objpath=../../objects
-set incpath=../../include
-
-@echo on
-%nasm_path%\nasm.exe -f aout -o %objpath%/isrs_asm.o isrs.asm
-%djgpp_path%\gcc.exe -Wall -O -fstrength-reduce -fomit-frame-pointer -nostdinc -fno-builtin -I%incpath% -c -o %objpath%/isrs.o isrs.c 
-%djgpp_path%\gcc.exe -Wall -O -fstrength-reduce -fomit-frame-pointer -nostdinc -fno-builtin -I%incpath% -c -o %objpath%/BSOD.o BSOD.c 
-
-@echo off
-@echo .
-@echo Done!
-
-@pause

SysCore/hal/isrs/isrs.c

@@ -1,70 +0,0 @@
-#include <system.h>
-#include "isrs.h"
-#include "../idt/idt.h"
-
-extern void _STOP_ERROR_SCREEN(ISR_stack_regs *);
-/* This is a very repetitive function... it's not hard, it's
-*  just annoying. As you can see, we set the first 32 entries
-*  in the IDT to the first 32 ISRs. We can't use a for loop
-*  for this, because there is no way to get the function names
-*  that correspond to that given entry. We set the access
-*  flags to 0x8E. This means that the entry is present, is
-*  running in ring 0 (kernel level), and has the lower 5 bits
-*  set to the required '14', which is represented by 'E' in
-*  hex. */
-void i86_isrs_install()
-{
-      i86_idt_set_gate(0, (unsigned)i86_isr0, 0x08, 0x8E);
-      i86_idt_set_gate(1, (unsigned)i86_isr1, 0x08, 0x8E);
-      i86_idt_set_gate(2, (unsigned)i86_isr2, 0x08, 0x8E);
-      i86_idt_set_gate(3, (unsigned)i86_isr3, 0x08, 0x8E);
-      i86_idt_set_gate(4, (unsigned)i86_isr4, 0x08, 0x8E);
-      i86_idt_set_gate(5, (unsigned)i86_isr5, 0x08, 0x8E);
-      i86_idt_set_gate(6, (unsigned)i86_isr6, 0x08, 0x8E);
-      i86_idt_set_gate(7, (unsigned)i86_isr7, 0x08, 0x8E);
-      i86_idt_set_gate(8, (unsigned)i86_isr8, 0x08, 0x8E);
-      i86_idt_set_gate(9, (unsigned)i86_isr9, 0x08, 0x8E);
-      i86_idt_set_gate(10, (unsigned)i86_isr10, 0x08, 0x8E);
-      i86_idt_set_gate(11, (unsigned)i86_isr11, 0x08, 0x8E);
-      i86_idt_set_gate(12, (unsigned)i86_isr12, 0x08, 0x8E);
-      i86_idt_set_gate(13, (unsigned)i86_isr13, 0x08, 0x8E);
-      i86_idt_set_gate(14, (unsigned)i86_isr14, 0x08, 0x8E);
-      i86_idt_set_gate(15, (unsigned)i86_isr15, 0x08, 0x8E);
-      i86_idt_set_gate(16, (unsigned)i86_isr16, 0x08, 0x8E);
-      i86_idt_set_gate(17, (unsigned)i86_isr17, 0x08, 0x8E);
-      i86_idt_set_gate(18, (unsigned)i86_isr18, 0x08, 0x8E);
-      i86_idt_set_gate(19, (unsigned)i86_isr19, 0x08, 0x8E);
-      i86_idt_set_gate(20, (unsigned)i86_isr20, 0x08, 0x8E);
-      i86_idt_set_gate(21, (unsigned)i86_isr21, 0x08, 0x8E);
-      i86_idt_set_gate(22, (unsigned)i86_isr22, 0x08, 0x8E);
-      i86_idt_set_gate(23, (unsigned)i86_isr23, 0x08, 0x8E);
-      i86_idt_set_gate(24, (unsigned)i86_isr24, 0x08, 0x8E);
-      i86_idt_set_gate(25, (unsigned)i86_isr25, 0x08, 0x8E);
-      i86_idt_set_gate(26, (unsigned)i86_isr26, 0x08, 0x8E);
-      i86_idt_set_gate(27, (unsigned)i86_isr27, 0x08, 0x8E);
-      i86_idt_set_gate(28, (unsigned)i86_isr28, 0x08, 0x8E);
-      i86_idt_set_gate(29, (unsigned)i86_isr29, 0x08, 0x8E);
-      i86_idt_set_gate(30, (unsigned)i86_isr30, 0x08, 0x8E);
-      i86_idt_set_gate(31, (unsigned)i86_isr31, 0x08, 0x8E);
-}
-
-
-
-/* All of our Exception handling Interrupt Service Routines will
-*  point to this function. This will tell us what exception has
-*  happened! Right now, we simply halt the system by hitting an
-*  endless loop. All ISRs disable interrupts while they are being
-*  serviced as a 'locking' mechanism to prevent an IRQ from
-*  happening and messing up kernel data structures */
-void i86_fault_handler(ISR_stack_regs *r)
-{
-    /* Is this a fault whose number is from 0 to 31? */
-    if (r->int_no < 32)
-    {
-        _STOP_ERROR_SCREEN(r);
-        /* Display the description for the Exception that occurred.*/
-        
-        /* Put on the BSOD screen*/
-        for (;;);
-    }
-}

SysCore/hal/isrs/isrs.h

@@ -1,40 +0,0 @@
-#ifndef __ISRS_H
-#define __ISRS_H
-
-extern void i86_isr0();
-extern void i86_isr1();
-extern void i86_isr2();
-extern void i86_isr3();
-extern void i86_isr4();
-extern void i86_isr5();
-extern void i86_isr6();
-extern void i86_isr7();
-extern void i86_isr8();
-extern void i86_isr9();
-extern void i86_isr10();
-extern void i86_isr11();
-extern void i86_isr12();
-extern void i86_isr13();
-extern void i86_isr14();
-extern void i86_isr15();
-extern void i86_isr16();
-extern void i86_isr17();
-extern void i86_isr18();
-extern void i86_isr19();
-extern void i86_isr20();
-extern void i86_isr21();
-extern void i86_isr22();
-extern void i86_isr23();
-extern void i86_isr24();
-extern void i86_isr25();
-extern void i86_isr26();
-extern void i86_isr27();
-extern void i86_isr28();
-extern void i86_isr29();
-extern void i86_isr30();
-extern void i86_isr31();
-
-extern void i86_isrs_install();
-extern void i86_fault_handler(ISR_stack_regs *r);
-
-#endif

SysCore/hal/keyboard/compile.bat

@@ -1,18 +0,0 @@
-@echo off
-rem The name of the loader assembly file (without extension, must be .asm):
-set loader_name=loader
-
-rem NASM and DJGPP executable paths:
-set nasm_path=C:\nasm
-set djgpp_path=C:\DJGPP\bin
-set objpath=../../objects
-set incpath=../../include
-
-@echo on
-%djgpp_path%\gcc.exe -Wall -O -fstrength-reduce -fomit-frame-pointer -nostdinc -fno-builtin -I%incpath% -c -o %objpath%/keyus.o keyus.c 
-
-@echo off
-@echo .
-@echo Done!
-
-@pause

SysCore/hal/keyboard/keyboard.h

@@ -1,135 +0,0 @@
-
-#define KB_KEY_LSHIFT 0x81    // 1000 0001
-#define KB_KEY_RSHIFT 0X82    // 1000 0010
-#define KB_KEY_LALT   0X84    // 1000 0100
-#define KB_KEY_RALT   0x88    // 1000 1000
-#define KB_KEY_LCTRL  0x90    // 1001 0000
-#define KB_KEY_RCTRL  0xA0    // 1010 0000
-#define KB_KEY_FSHIFT 0xC0    // 1100 0000
-extern volatile unsigned char kb_modifier_status;
-
-#define KB_PREFIX_GRAY   0x01       // Gray
-#define KB_PREFIX_BREAK  0x02       // Break code
-#define KB_PREFIX_PAUSE  0x04       // Pause/break key
-#define KB_PREFIX_PAUSE1 0x08       // Recieved first unsigned char from pause/break
-extern volatile unsigned char kb_prefix;
-
-#define KB_KEY_SCROLL  0xF1   // 1111 0001
-#define KB_KEY_NUM     0xF2   // 1111 0010
-#define KB_KEY_CAPS    0xF4   // 1111 0100
-extern volatile unsigned char kb_lights_status;
-
-extern unsigned char kb_scancode_set;
-
-enum KB_KEYS {
-       KB_KEY_PAUSE         =      0x00
-       KB_KEY_F9            =      0x01
-       KB_KEY_F7            =      0x02
-       KB_KEY_F5            =      0X03
-       KB_KEY_F3            =      0x04
-       KB_KEY_F1            =      0x05
-       KB_KEY_F2            =      0x06
-       KB_KEY_F12           =      0x07
-       KB_KEY_PRINTSCRN     =      0x08
-       KB_KEY_F10           =      0x09
-       KB_KEY_F8            =      0x0A
-       KB_KEY_F6            =      0x0B
-       KB_KEY_F4            =      0x0C
-       KB_KEY_TAB           =      0x0D
-       KB_KEY_TILDA         =      0x0E
-       KB_KEY_Q             =      0x15
-       KB_KEY_1             =      0x16
-       KB_KEY_Z             =      0x1A
-       KB_KEY_S             =      0x1B
-       KB_KEY_A             =      0x1C
-       KB_KEY_W             =      0x1D
-       KB_KEY_2             =      0x1E
-       KB_KEY_LWIN          =      0x1F
-       KB_KEY_C             =      0x21
-       KB_KEY_X             =      0x22
-       KB_KEY_D             =      0x23
-       KB_KEY_E             =      0x24
-       KB_KEY_4             =      0x25
-       KB_KEY_3             =      0x26
-       KB_KEY_RWIN          =      0x27
-       KB_KEY_SPACE         =      0x29
-       KB_KEY_V             =      0x2A
-       KB_KEY_F             =      0x2B
-       KB_KEY_T             =      0x2C
-       KB_KEY_R             =      0x2D
-       KB_KEY_5             =      0x2E
-       KB_KEY_MENU          =      0x2F
-       KB_KEY_N             =      0x31
-       KB_KEY_B             =      0x32
-       KB_KEY_H             =      0x33
-       KB_KEY_G             =      0x34
-       KB_KEY_Y             =      0x35
-       KB_KEY_6             =      0x36
-       KB_KEY_M             =      0x3A
-       KB_KEY_J             =      0x3B
-       KB_KEY_U             =      0x3C
-       KB_KEY_7             =      0x3D
-       KB_KEY_8             =      0x3E
-       KB_KEY_COMMA         =      0x41
-       KB_KEY_K             =      0x42
-       KB_KEY_I             =      0x43
-       KB_KEY_O             =      0x44
-       KB_KEY_0             =      0x45
-       KB_KEY_9             =      0x46
-       KB_KEY_PERIOD        =      0x49
-       KB_KEY_SLASH         =      0x4A
-       KB_KEY_L             =      0x4B
-       KB_KEY_SEMICOLON     =      0x4C
-       KB_KEY_P             =      0x4D
-       KB_KEY_DASH          =      0x4E
-       KB_KEY_APOSTROPHE    =      0x52
-       KB_KEY_LBRACKET      =      0x54
-       KB_KEY_EQUAL         =      0x55
-       KB_KEY_NUMPAD_ENTER  =      0x59
-       KB_KEY_ENTER         =      0x5A
-       KB_KEY_RBRACKET      =      0x5B
-       KB_KEY_BACKSLASH     =      0x5D
-       KB_KEY_END           =      0x5E
-       KB_KEY_LEFT          =      0x5F
-       KB_KEY_HOME          =      0x60
-       KB_KEY_INSERT        =      0x61
-       KB_KEY_DELETE        =      0x62
-       KB_KEY_DOWN          =      0x63
-       KB_KEY_RIGHT         =      0x64
-       KB_KEY_UP            =      0x65
-       KB_KEY_BACKSPACE     =      0x66
-       KB_KEY_PGDOWN        =      0x67
-       KB_KEY_PGUP          =      0x68
-       KB_KEY_NUMPAD_1      =      0x69
-       KB_KEY_NUMPAD_SLASH  =      0x6A
-       KB_KEY_NUMPAD_4      =      0x6B
-       KB_KEY_NUMPAD_7      =      0x6C
-       KB_KEY_NUMPAD_0      =      0x70
-       KB_KEY_NUMPAD_COLON  =      0x71
-       KB_KEY_NUMPAD_2      =      0x72
-       KB_KEY_NUMPAD_5      =      0x73
-       KB_KEY_NUMPAD_6      =      0x74
-       KB_KEY_NUMPAD_8      =      0x75
-       KB_KEY_ESC           =      0x76
-       KB_KEY_F11           =      0x78
-       KB_KEY_NUMPAD_PLUS   =      0x79
-       KB_KEY_NUMPAD_3      =      0x7A
-       KB_KEY_NUMPAD_MINUS  =      0x7B
-       KB_KEY_NUMPAD_ASTERISK =    0x7C
-       KB_KEY_NUMPAD_9      =      0x7D
-};
-      
-typedef struct {
-      unsigned char status;
-      unsigned char lights;
-      unsigned char scancode;
-      unsigned char character;
-} kb_key;
-
-
-extern char getch();
-extern kb_key get_key();
-extern scancode_to_ascii(unsigned char scancode);
-extern unsigned char get_key_status(unsigned char scancode);
-extern void kb_set_repeat(float rate, int delay);
-extern void kb_set_LEDs(unsigned char status);

SysCore/hal/keyboard/keyus.h

@@ -1,28 +0,0 @@
-#ifndef __KEYUS_H
-#define __KEYUS_H
-
-extern const char kbdus_map[0x80];
-extern const char kbdus_map_shift[0x80];
-
-extern volatile unsigned char kb_modifier_status;
-extern volatile unsigned char kb_prefix;
-extern volatile unsigned char kb_lights_status;
-extern unsigned char kb_scancode_set;
-
-extern void i86_kb_set_key(unsigned char scancode, unsigned char val);
-extern void i86_kb_set_LEDs(unsigned char status);
-extern void i86_kb_set_repeat(unsigned char rate, unsigned char delay);
-extern void i86_kb_set_scancodeset(unsigned char set);
-extern unsigned char i86_kb_get_key(unsigned char scancode);
-extern void i86_kb_handler(ISR_stack_regs *r);
-extern kb_key getkey();
-extern void i86_kb_set_repeat(unsigned char rate, unsigned char delay);
-extern void i86_kb_set_LEDs(unsigned char status);
-extern void i86_kb_set_scancodeset(unsigned char set);
-extern unsigned char i86_kb_get_scancodeset();
-extern void i86_kb_waitin();
-extern void i86_kb_waitout();
-extern void i86_kb_install_partone();
-extern int i86_kb_install_parttwo();
-
-#endif

SysCore/hal/makeall.bat

@@ -1,127 +0,0 @@
-@echo off
-set nasm_path=C:\nasm
-set djgpp_path=C:\DJGPP\bin
-
-@echo Building Hardware Abstraction Layer...
-set objpath=..\objects
-set incpath=../include
-del %objpath%\hal.o
-%djgpp_path%\gcc.exe -Wall -O -fstrength-reduce -fomit-frame-pointer -nostdinc -fno-builtin -I%incpath% -c -o %objpath%/hal.o hal.c 
-if not exist %objpath%\hal.o goto error
-
-set objpath=..\..\objects
-set incpath=../../include
-
-goto cmos
-
-:error
-      @echo.
-      @echo There have been build errors. Building halted.
-      @pause
-      exit
-
-:cmos
-      cd cmos
-      @echo       * Compiling CMOS...
-      del %objpath%\cmos.o
-      %djgpp_path%\gcc.exe -Wall -O -fstrength-reduce -fomit-frame-pointer -nostdinc -fno-builtin -I%incpath% -c -o %objpath%/cmos.o cmos.c
-      if not exist %objpath%\cmos.o goto error
-      cd..
-
-:cpu
-      cd cpu
-      @echo       * Compiling Central Processing Unit (CPU)...
-      del %objpath%\cpu.o
-      %djgpp_path%\gcc.exe -Wall -O -fstrength-reduce -fomit-frame-pointer -nostdinc -fno-builtin -I%incpath% -c -o %objpath%/cpu.o cpu.c 
-      if not exist %objpath%\cpu.o goto error
-
-      cd..
-
-
-:dma
-      cd dma
-      @echo       * Compiling Direct Memory Access Controller (DMAC)...
-      del %objpath%\dma.o
-      %djgpp_path%\gcc.exe -Wall -O -fstrength-reduce -fomit-frame-pointer -nostdinc -fno-builtin -I%incpath% -c -o %objpath%/dma.o dma.c 
-      if not exist %objpath%\dma.o goto error
-      cd..
-
-
-:floppy
-      cd floppy
-      @echo       * Compiling Floppy Driver...
-      del %objpath%\floppy.o
-      %djgpp_path%\gcc.exe -Wall -O -fstrength-reduce -fomit-frame-pointer -nostdinc -fno-builtin -I%incpath% -c -o %objpath%/floppy.o floppy.c
-      if not exist %objpath%\floppy.o goto error
-      cd..
-
-:gdt
-      cd gdt
-      @echo       * Compiling Global Descriptor Table...
-      del %objpath%\gdt.o
-      del %objpath%\gdt_asm.o
-      %nasm_path%\nasm.exe -f aout -o %objpath%/gdt_asm.o gdt.asm
-      %djgpp_path%\gcc.exe -Wall -O -fstrength-reduce -fomit-frame-pointer -nostdinc -fno-builtin -I%incpath% -c -o %objpath%/gdt.o gdt.c 
-      if not exist %objpath%\gdt.o goto error
-      if not exist %objpath%\gdt_asm.o goto error
-      cd..
-
-:idt
-      cd idt
-      @echo       * Compiling Interrupt Descriptor Table...
-      del %objpath%\idt.o
-      del %objpath%\idt_asm.o
-      %nasm_path%\nasm.exe -f aout -o %objpath%/idt_asm.o idt.asm
-      %djgpp_path%\gcc.exe -Wall -O -fstrength-reduce -fomit-frame-pointer -nostdinc -fno-builtin -I%incpath% -c -o %objpath%/idt.o idt.c 
-      if not exist %objpath%\idt.o goto error
-      if not exist %objpath%\idt_asm.o goto error
-      cd..
-
-:irq
-      cd irq
-      @echo       * Compiling Interrupt ReQuests...
-      del %objpath%\irq.o
-      del %objpath%\irq_asm.o
-      %nasm_path%\nasm.exe -f aout -o %objpath%/irq_asm.o irq.asm
-      %djgpp_path%\gcc.exe -Wall -O -fstrength-reduce -fomit-frame-pointer -nostdinc -fno-builtin -I%incpath% -c -o %objpath%/irq.o irq.c 
-      if not exist %objpath%\irq.o goto error
-      if not exist %objpath%\irq_asm.o goto error
-      cd..
-
-:isrs
-      cd isrs
-      @echo       * Compiling Interrupt Service Routines...
-      del %objpath%\isrs_asm.o
-      del %objpath%\isrs.o
-      del %objpath%\BSOD.o
-      %nasm_path%\nasm.exe -f aout -o %objpath%/isrs_asm.o isrs.asm
-      %djgpp_path%\gcc.exe -Wall -O -fstrength-reduce -fomit-frame-pointer -nostdinc -fno-builtin -I%incpath% -c -o %objpath%/isrs.o isrs.c 
-      %djgpp_path%\gcc.exe -Wall -O -fstrength-reduce -fomit-frame-pointer -nostdinc -fno-builtin -I%incpath% -c -o %objpath%/BSOD.o BSOD.c 
-      if not exist %objpath%\isrs_asm.o goto error
-      if not exist %objpath%\isrs.o goto error
-      if not exist %objpath%\BSOD.o goto error
-      cd..
-
-:keyboard
-      cd keyboard
-      @echo       * Compiling KEYBOARD...
-      del %objpath%\keyus.o
-      %djgpp_path%\gcc.exe -Wall -O -fstrength-reduce -fomit-frame-pointer -nostdinc -fno-builtin -I%incpath% -c -o %objpath%/keyus.o keyus.c 
-      if not exist %objpath%\keyus.o goto error
-      cd..
-
-:pic
-      cd pic
-      @echo       * Compiling Programmable Interrupt Controller...
-      del %objpath%\pic.o
-      %djgpp_path%\gcc.exe -Wall -O -fstrength-reduce -fomit-frame-pointer -nostdinc -fno-builtin -I%incpath% -c -o %objpath%/pic.o pic.c 
-      if not exist %objpath%\pic.o goto error
-      cd..
-
-:pit
-      cd pit
-      @echo       * Compiling Programmable Interval Timer...
-      del %objpath%\pit.o
-      %djgpp_path%\gcc.exe -Wall -O -fstrength-reduce -fomit-frame-pointer -nostdinc -fno-builtin -I%incpath% -c -o %objpath%/pit.o pit.c 
-      if not exist %objpath%\pit.o goto error
-      cd..

SysCore/hal/pic/compile.bat

@@ -1,18 +0,0 @@
-@echo off
-rem The name of the loader assembly file (without extension, must be .asm):
-set loader_name=loader
-
-rem NASM and DJGPP executable paths:
-set nasm_path=C:\nasm
-set djgpp_path=C:\DJGPP\bin
-set objpath=../../objects
-set incpath=../../include
-
-@echo on
-%djgpp_path%\gcc.exe -Wall -O -fstrength-reduce -fomit-frame-pointer -nostdinc -fno-builtin -I%incpath% -c -o %objpath%/pic.o pic.c 
-
-@echo off
-@echo .
-@echo Done!
-
-@pause

SysCore/hal/pic/pic.h

@@ -1,6 +0,0 @@
-#ifndef _PIC_H
-#define _PIC_H
-
-extern void i86_pic_remap(int pic1, int pic2);
-
-#endif

SysCore/hal/pit/compile.bat

@@ -1,18 +0,0 @@
-@echo off
-rem The name of the loader assembly file (without extension, must be .asm):
-set loader_name=loader
-
-rem NASM and DJGPP executable paths:
-set nasm_path=C:\nasm
-set djgpp_path=C:\DJGPP\bin
-set objpath=../../objects
-set incpath=../../include
-
-@echo on
-%djgpp_path%\gcc.exe -Wall -O -fstrength-reduce -fomit-frame-pointer -nostdinc -fno-builtin -I%incpath% -c -o %objpath%/pit.o pit.c 
-
-@echo off
-@echo .
-@echo Done!
-
-@pause

SysCore/hal/pit/pit.c

@@ -1,61 +0,0 @@
-#include <system.h>
-#include <time.h>
-#include "../irq/irq.h"
-#include "pit.h"
-
-volatile unsigned int _pit_ticks = 0;
-volatile unsigned int _pit_frequency = 0;
-unsigned char _pit_init = 0;
-volatile TIME _internal_clock;
-
-
-void i86_pit_set_frequency(int frequency)
-{
-      int divisor = 1193180/frequency;           // Calculate the divisor
-      outportb(0x43, 0x36);               // Set our command byte 0x36
-      outportb(0x40, divisor&0xFF);       // Set low byte
-      outportb(0x40, divisor>>8);         // Set high byte
-      _pit_frequency = frequency;
-}
-
-void i86_pit_handler(ISR_stack_regs *r)
-{
-      _pit_ticks++;                                  // count tick
-      if (_pit_ticks % _pit_frequency == 0)
-                  _CLOCK_INC((TIME*)&_internal_clock);   // update internal clock
-}
-
-unsigned int i86_pit_set_tick_count(unsigned int i)
-{
-      unsigned int r = _pit_ticks;
-      _pit_ticks = i;
-      return r;
-}
-
-unsigned int i86_pit_get_tick_count()
-{
-      return _pit_ticks;
-}
-unsigned int i86_pit_get_frequency()
-{
-      return _pit_frequency;
-}
-
-void i86_pit_install(int freq)
-{
-      i86_irq_install_handler(0, i86_pit_handler);
-      i86_pit_set_frequency(freq);
-      _pit_ticks = 0;
-      _pit_init = 1;
-
-}
-
-TIME i86_pit_get_time()
-{
-    return _internal_clock;
-}
-
-unsigned char i86_pit_is_initialized()
-{
-      return _pit_init;
-}

SysCore/hal/pit/pit.h

@@ -1,17 +0,0 @@
-#ifndef __PIT_H
-#define __PIT_H
-
-#include<regs.h>
-extern volatile unsigned int  _pit_ticks;
-extern volatile unsigned int _pit_frequency;
-extern volatile TIME _internal_clock;
-
-extern void i86_pit_handler(ISR_stack_regs *r);
-extern void i86_pit_set_frequency(int frequency);
-extern unsigned int i86_pit_set_tick_count(unsigned int i);
-extern unsigned int i86_pit_get_tick_count();
-extern unsigned int i86_pit_get_frequency();
-extern void i86_pit_install(int freq);
-extern unsigned char i86_pit_is_initialized();
-
-#endif

SysCore/include/drivers/floppy.h

@@ -0,0 +1,26 @@
+/***** floppy.h ******************************************************
+ * (c) 2010 CTA Systems Inc. All rights reserved. Glory To God       *
+ *                                                                   *
+ *         Floppy Drive I/O Routines                                 *
+ *         =========================                                 *
+ *                                                                   *
+ ************************************************************ cta os */
+#include<regs.h>
+
+extern unsigned char FloppyInitializeDMA(unsigned char* buffer, unsigned length);
+extern void FloppyMotor (unsigned char drive, unsigned char on);
+extern void i86_FloppyHandler(ISR_stack_regs *r);
+extern void FloppyDriveData (unsigned char drv, unsigned char dma);
+extern unsigned char FloppyCalibrate(unsigned drive);
+extern void FloppyReset();
+
+extern unsigned char FloppySeek (unsigned drive, unsigned cyl, unsigned head);
+extern void FloppyInstall();
+extern unsigned char FloppyIsDriverEnabled();
+
+// Read/Write routines
+extern unsigned* FloppyReadSectors (unsigned* where, unsigned char drive, int sectorLBA, unsigned count);
+extern unsigned* FloppyWriteSectors (unsigned* where, unsigned char drive, int sectorLBA, unsigned count);
+
+extern void FloppyReadSectorImp (unsigned* where, unsigned char drive, unsigned char head, unsigned char track, unsigned char sector);
+extern void FloppyWritedSectorImp (unsigned* where, unsigned char drive, unsigned char head, unsigned char track, unsigned char sector);

SysCore/include/drivers/keyboard.h

@@ -0,0 +1,173 @@
+#ifndef __KEYBOARD_H
+#define __KEYBOARD_H
+
+#include <regs.h>
+
+#define KeyboardKeyModifierLeftShift 0x81    // 1000 0001
+#define KeyboardKeyModifierRightShift 0x82    // 1000 0010
+#define KeyboardKeyModifierLeftAlt   0x84    // 1000 0100
+#define KeyboardKeyModifierRightAlt   0x88    // 1000 1000
+#define KeyboardKeyModifierLeftCtrl  0x90    // 1001 0000
+#define KeyboardKeyModifierRightCtrl  0xA0    // 1010 0000
+#define KeyboardKeyFakeShift 0xC0    // 1100 0000
+
+#define KeyboardLightScroll  0xF1   // 1111 0001
+#define KeyboardLightNum     0xF2   // 1111 0010
+#define KeyboardLightCaps    0xF4   // 1111 0100
+
+
+enum KeyboardKeys {
+       KeyboardKeyPause     =      0x00,
+       KeyboardKeyF9            =      0x01,
+       KeyboardKeyF7            =      0x02,
+       KeyboardKeyF5            =      0X03,
+       KeyboardKeyF3            =      0x04,
+       KeyboardKeyF1            =      0x05,
+       KeyboardKeyF2            =      0x06,
+       KeyboardKeyF12           =      0x07,
+       KeyboardKeyPrintScreen     =      0x08,
+       KeyboardKeyF10           =      0x09,
+       KeyboardKeyF8            =      0x0A,
+       KeyboardKeyF6            =      0x0B,
+       KeyboardKeyF4            =      0x0C,
+       KeyboardKeyTab           =      0x0D,
+       KeyboardKeyTilda         =      0x0E,
+       KeyboardKeyQ             =      0x15,
+       KeyboardKey1             =      0x16,
+       KeyboardKeyZ             =      0x1A,
+       KeyboardKeyS             =      0x1B,
+       KeyboardKeyA             =      0x1C,
+       KeyboardKeyW             =      0x1D,
+       KeyboardKey2             =      0x1E,
+       KeyboardKeyLeftWin          =      0x1F,
+       KeyboardKeyC             =      0x21,
+       KeyboardKeyX             =      0x22,
+       KeyboardKeyD             =      0x23,
+       KeyboardKeyE             =      0x24,
+       KeyboardKey4             =      0x25,
+       KeyboardKey3             =      0x26,
+       KeyboardKeyRightWin          =      0x27,
+       KeyboardKeySpace         =      0x29,
+       KeyboardKeyV             =      0x2A,
+       KeyboardKeyF             =      0x2B,
+       KeyboardKeyT             =      0x2C,
+       KeyboardKeyR             =      0x2D,
+       KeyboardKey5             =      0x2E,
+       KeyboardKeyMenu          =      0x2F,
+       KeyboardKeyN             =      0x31,
+       KeyboardKeyB             =      0x32,
+       KeyboardKeyH             =      0x33,
+       KeyboardKeyG             =      0x34,
+       KeyboardKeyY             =      0x35,
+       KeyboardKey6             =      0x36,
+       KeyboardKeyM             =      0x3A,
+       KeyboardKeyJ             =      0x3B,
+       KeyboardKeyU             =      0x3C,
+       KeyboardKey7             =      0x3D,
+       KeyboardKey8             =      0x3E,
+       KeyboardKeyComma         =      0x41,
+       KeyboardKeyK             =      0x42,
+       KeyboardKeyI             =      0x43,
+       KeyboardKeyO             =      0x44,
+       KeyboardKey0             =      0x45,
+       KeyboardKey9             =      0x46,
+       KeyboardKeyPeriod        =      0x49,
+       KeyboardKeySlash         =      0x4A,
+       KeyboardKeyL             =      0x4B,
+       KeyboardKeySemicolon     =      0x4C,
+       KeyboardKeyP             =      0x4D,
+       KeyboardKeyDash          =      0x4E,
+       KeyboardKeyApostrophe    =      0x52,
+       KeyboardKeyLeftBracket      =      0x54,
+       KeyboardKeyEqual         =      0x55,
+       KeyboardKeyNumpadEnter  =      0x59,
+       KeyboardKeyReturn         =      0x5A,
+       KeyboardKeyRightBracket      =      0x5B,
+       KeyboardKeyBackSlash     =      0x5D,
+       KeyboardKeyEnd           =      0x5E,
+       KeyboardKeyLeft          =      0x5F,
+       KeyboardKeyHome          =      0x60,
+       KeyboardKeyInsert        =      0x61,
+       KeyboardKeyDelete        =      0x62,
+       KeyboardKeyDown          =      0x63,
+       KeyboardKeyRight         =      0x64,
+       KeyboardKeyUp            =      0x65,
+       KeyboardKeyBackspace     =      0x66,
+       KeyboardKeyPageDown        =      0x67,
+       KeyboardKeyPageUp          =      0x68,
+       KeyboardKeyNumpad1      =      0x69,
+       KeyboardKeyNumpadSlash  =      0x6A,
+       KeyboardKeyNumpad4      =      0x6B,
+       KeyboardKeyNumpad7      =      0x6C,
+       KeyboardKeyNumpad0      =      0x70,
+       KeyboardKeyNumpadColon  =      0x71,
+       KeyboardKeyNumpad2      =      0x72,
+       KeyboardKeyNumpad5      =      0x73,
+       KeyboardKeyNumpad6      =      0x74,
+       KeyboardKeyNumpad8      =      0x75,
+       KeyboardKeyEscape           =      0x76,
+       KeyboardKeyF11           =      0x78,
+       KeyboardKeyNumpadPlus   =      0x79,
+       KeyboardKeyNumpad3      =      0x7A,
+       KeyboardKeyNumpadMinus  =      0x7B,
+       KeyboardKeyNumpadAsterisk =    0x7C,
+       KeyboardKeyNumpad9      =      0x7D
+};
+
+typedef struct {
+      unsigned char ModifierStatus;
+      unsigned char Lights;
+      unsigned char Scancode;
+      unsigned char Character;
+} KeyboardKey;
+
+extern void KeyboardSetKey(unsigned char scancode, unsigned char val);
+extern unsigned char KeyIsPressed(unsigned char scancode);
+extern void i86_KeyboardHandler(ISR_stack_regs *r);
+extern KeyboardKey GetKey();
+
+/**\n
+ Sets the repeat rate/delay\n
+ \n\Delay:
+ Values for inter-character delay (bits 4-0)\n
+ (characters per second; default is 10.9)\n
+     |  0 |  1 |  2 |  3 |  4 |  5 |  6 |  7 \n
+ ----+----+----+----+----+----+----+----+----\n
+  0  |30.0|26.7|24.0|21.8|20.0|18.5|17.1|16.0\n
+  8  |15.0|13.3|12.0|10.9|10.0|9.2 |8.6 |8.0\n
+  16 |7.5 |6.7 |6.0 |5.5 |5.0 |4.6 |4.3 |4.0\n
+  24 |3.7 |3.3 |3.0 |2.7 |2.5 |2.3 |2.1 |2.0\n
+  \n
+ Values for delay:\n
+ (miliseconds; default is 500)\n
+    0 |   1 |   2 |   3\n
+ -----+-----+-----+-----\n
+  250 | 500 | 750 | 1000\n  \n*/ 
+extern void KeyboardSetRepeatRate(unsigned char rate, unsigned char delay);
+
+/***************************************
+ *       Set keyboard LEDs             *
+ ***************************************
+ +-----------+-------+-------+--------+
+ | Bits 7-3  | Bit 2 | Bit 1 | Bit 0  |
+ |   0       | Caps  | Num   | Scroll |
+ |(reserved) |  lock |  lock |  lock  |
+ +-----------+-------+-------+--------+
+ ***************************************/ 
+extern void KeyboardSetLEDs(unsigned char status);
+
+/***************************************
+ *       Set scancode set              *
+ ***************************************
+      0  Get current scancode set
+      1  Set to scancode set 1
+      2  Set to scancode set 2
+      3  Set to scancode set 3
+ ***************************************/ 
+extern void KeyboardSetScancodeSet(unsigned char set);
+extern void KeyboardWaitInput();
+extern void KeyboardWaitOutput();
+extern void KeyboardInstallA();
+extern void KeyboardInstallB();
+
+#endif

SysCore/include/hal.h

@@ -10,7 +10,7 @@
 #define i86_start_interrupts() __asm__ __volatile__ ("sti");
 #define i86_clear_interrupts() __asm__ __volatile__ ("cli");
 
-extern TIME i86_pit_get_time() ;
+extern TIME ClockGetTime() ;
 extern unsigned* i86_read_sector (unsigned* where, unsigned char drive, int sectorLBA);
 // initialize hardware abstraction layer
 extern void i86_hal_initialize ();
@@ -39,146 +39,129 @@ extern void sound (unsigned frequency);
 //! returns cpu vender
 extern const char*  get_cpu_vender ();
 
-extern void reboot();
+extern void SystemReboot();
 
 
 /**********************************************************************
  *                  KEYBOARD STUFF                                    *
  **********************************************************************/
 
-#define KB_KEY_LSHIFT 0x81    // 1000 0001
+#define KeyboardKeyModifierLeftShift 0x81    // 1000 0001
-#define KB_KEY_RSHIFT 0X82    // 1000 0010
+#define KeyboardKeyModifierRightShift 0x82    // 1000 0010
-#define KB_KEY_LALT   0X84    // 1000 0100
+#define KeyboardKeyModifierLeftAlt   0x84    // 1000 0100
-#define KB_KEY_RALT   0x88    // 1000 1000
+#define KeyboardKeyModifierRightAlt   0x88    // 1000 1000
-#define KB_KEY_LCTRL  0x90    // 1001 0000
+#define KeyboardKeyModifierLeftCtrl  0x90    // 1001 0000
-#define KB_KEY_RCTRL  0xA0    // 1010 0000
+#define KeyboardKeyModifierRightCtrl  0xA0    // 1010 0000
-#define KB_KEY_FSHIFT 0xC0    // 1100 0000
+#define KeyboardKeyFakeShift 0xC0    // 1100 0000
-extern volatile unsigned char kb_modifier_status;
 
-#define KB_PREFIX_GRAY   0x01       // Gray
+#define KeyboardLightScroll  0xF1   // 1111 0001
-#define KB_PREFIX_BREAK  0x02       // Break code
+#define KeyboardLightNum     0xF2   // 1111 0010
-#define KB_PREFIX_PAUSE  0x04       // Pause/break key
+#define KeyboardLightCaps    0xF4   // 1111 0100
-#define KB_PREFIX_PAUSE1 0x08       // Recieved first unsigned char from pause/break
-extern volatile unsigned char kb_prefix;
 
-#define KB_KEY_SCROLL  0xF1   // 1111 0001
+enum KeyboardKeys {
-#define KB_KEY_NUM     0xF2   // 1111 0010
+       KeyboardKeyPause     =      0x00,
-#define KB_KEY_CAPS    0xF4   // 1111 0100
+       KeyboardKeyF9            =      0x01,
-extern volatile unsigned char kb_lights_status;
+       KeyboardKeyF7            =      0x02,
-
+       KeyboardKeyF5            =      0X03,
-extern unsigned char kb_scancode_set;
+       KeyboardKeyF3            =      0x04,
-
+       KeyboardKeyF1            =      0x05,
-enum KB_KEYS {
+       KeyboardKeyF2            =      0x06,
-       KB_KEY_PAUSE         =      0x00,
+       KeyboardKeyF12           =      0x07,
-       KB_KEY_F9            =      0x01,
+       KeyboardKeyPrintScreen     =      0x08,
-       KB_KEY_F7            =      0x02,
+       KeyboardKeyF10           =      0x09,
-       KB_KEY_F5            =      0X03,
+       KeyboardKeyF8            =      0x0A,
-       KB_KEY_F3            =      0x04,
+       KeyboardKeyF6            =      0x0B,
-       KB_KEY_F1            =      0x05,
+       KeyboardKeyF4            =      0x0C,
-       KB_KEY_F2            =      0x06,
+       KeyboardKeyTab           =      0x0D,
-       KB_KEY_F12           =      0x07,
+       KeyboardKeyTilda         =      0x0E,
-       KB_KEY_PRINTSCRN     =      0x08,
+       KeyboardKeyQ             =      0x15,
-       KB_KEY_F10           =      0x09,
+       KeyboardKey1             =      0x16,
-       KB_KEY_F8            =      0x0A,
+       KeyboardKeyZ             =      0x1A,
-       KB_KEY_F6            =      0x0B,
+       KeyboardKeyS             =      0x1B,
-       KB_KEY_F4            =      0x0C,
+       KeyboardKeyA             =      0x1C,
-       KB_KEY_TAB           =      0x0D,
+       KeyboardKeyW             =      0x1D,
-       KB_KEY_TILDA         =      0x0E,
+       KeyboardKey2             =      0x1E,
-       KB_KEY_Q             =      0x15,
+       KeyboardKeyLeftWin          =      0x1F,
-       KB_KEY_1             =      0x16,
+       KeyboardKeyC             =      0x21,
-       KB_KEY_Z             =      0x1A,
+       KeyboardKeyX             =      0x22,
-       KB_KEY_S             =      0x1B,
+       KeyboardKeyD             =      0x23,
-       KB_KEY_A             =      0x1C,
+       KeyboardKeyE             =      0x24,
-       KB_KEY_W             =      0x1D,
+       KeyboardKey4             =      0x25,
-       KB_KEY_2             =      0x1E,
+       KeyboardKey3             =      0x26,
-       KB_KEY_LWIN          =      0x1F,
+       KeyboardKeyRightWin          =      0x27,
-       KB_KEY_C             =      0x21,
+       KeyboardKeySpace         =      0x29,
-       KB_KEY_X             =      0x22,
+       KeyboardKeyV             =      0x2A,
-       KB_KEY_D             =      0x23,
+       KeyboardKeyF             =      0x2B,
-       KB_KEY_E             =      0x24,
+       KeyboardKeyT             =      0x2C,
-       KB_KEY_4             =      0x25,
+       KeyboardKeyR             =      0x2D,
-       KB_KEY_3             =      0x26,
+       KeyboardKey5             =      0x2E,
-       KB_KEY_RWIN          =      0x27,
+       KeyboardKeyMenu          =      0x2F,
-       KB_KEY_SPACE         =      0x29,
+       KeyboardKeyN             =      0x31,
-       KB_KEY_V             =      0x2A,
+       KeyboardKeyB             =      0x32,
-       KB_KEY_F             =      0x2B,
+       KeyboardKeyH             =      0x33,
-       KB_KEY_T             =      0x2C,
+       KeyboardKeyG             =      0x34,
-       KB_KEY_R             =      0x2D,
+       KeyboardKeyY             =      0x35,
-       KB_KEY_5             =      0x2E,
+       KeyboardKey6             =      0x36,
-       KB_KEY_MENU          =      0x2F,
+       KeyboardKeyM             =      0x3A,
-       KB_KEY_N             =      0x31,
+       KeyboardKeyJ             =      0x3B,
-       KB_KEY_B             =      0x32,
+       KeyboardKeyU             =      0x3C,
-       KB_KEY_H             =      0x33,
+       KeyboardKey7             =      0x3D,
-       KB_KEY_G             =      0x34,
+       KeyboardKey8             =      0x3E,
-       KB_KEY_Y             =      0x35,
+       KeyboardKeyComma         =      0x41,
-       KB_KEY_6             =      0x36,
+       KeyboardKeyK             =      0x42,
-       KB_KEY_M             =      0x3A,
+       KeyboardKeyI             =      0x43,
-       KB_KEY_J             =      0x3B,
+       KeyboardKeyO             =      0x44,
-       KB_KEY_U             =      0x3C,
+       KeyboardKey0             =      0x45,
-       KB_KEY_7             =      0x3D,
+       KeyboardKey9             =      0x46,
-       KB_KEY_8             =      0x3E,
+       KeyboardKeyPeriod        =      0x49,
-       KB_KEY_COMMA         =      0x41,
+       KeyboardKeySlash         =      0x4A,
-       KB_KEY_K             =      0x42,
+       KeyboardKeyL             =      0x4B,
-       KB_KEY_I             =      0x43,
+       KeyboardKeySemicolon     =      0x4C,
-       KB_KEY_O             =      0x44,
+       KeyboardKeyP             =      0x4D,
-       KB_KEY_0             =      0x45,
+       KeyboardKeyDash          =      0x4E,
-       KB_KEY_9             =      0x46,
+       KeyboardKeyApostrophe    =      0x52,
-       KB_KEY_PERIOD        =      0x49,
+       KeyboardKeyLeftBracket      =      0x54,
-       KB_KEY_SLASH         =      0x4A,
+       KeyboardKeyEqual         =      0x55,
-       KB_KEY_L             =      0x4B,
+       KeyboardKeyNumpadEnter  =      0x59,
-       KB_KEY_SEMICOLON     =      0x4C,
+       KeyboardKeyReturn         =      0x5A,
-       KB_KEY_P             =      0x4D,
+       KeyboardKeyRightBracket      =      0x5B,
-       KB_KEY_DASH          =      0x4E,
+       KeyboardKeyBackSlash     =      0x5D,
-       KB_KEY_APOSTROPHE    =      0x52,
+       KeyboardKeyEnd           =      0x5E,
-       KB_KEY_LBRACKET      =      0x54,
+       KeyboardKeyLeft          =      0x5F,
-       KB_KEY_EQUAL         =      0x55,
+       KeyboardKeyHome          =      0x60,
-       KB_KEY_NUMPAD_ENTER  =      0x59,
+       KeyboardKeyInsert        =      0x61,
-       KB_KEY_ENTER         =      0x5A,
+       KeyboardKeyDelete        =      0x62,
-       KB_KEY_RBRACKET      =      0x5B,
+       KeyboardKeyDown          =      0x63,
-       KB_KEY_BACKSLASH     =      0x5D,
+       KeyboardKeyRight         =      0x64,
-       KB_KEY_END           =      0x5E,
+       KeyboardKeyUp            =      0x65,
-       KB_KEY_LEFT          =      0x5F,
+       KeyboardKeyBackspace     =      0x66,
-       KB_KEY_HOME          =      0x60,
+       KeyboardKeyPageDown        =      0x67,
-       KB_KEY_INSERT        =      0x61,
+       KeyboardKeyPageUp          =      0x68,
-       KB_KEY_DELETE        =      0x62,
+       KeyboardKeyNumpad1      =      0x69,
-       KB_KEY_DOWN          =      0x63,
+       KeyboardKeyNumpadSlash  =      0x6A,
-       KB_KEY_RIGHT         =      0x64,
+       KeyboardKeyNumpad4      =      0x6B,
-       KB_KEY_UP            =      0x65,
+       KeyboardKeyNumpad7      =      0x6C,
-       KB_KEY_BACKSPACE     =      0x66,
+       KeyboardKeyNumpad0      =      0x70,
-       KB_KEY_PGDOWN        =      0x67,
+       KeyboardKeyNumpadColon  =      0x71,
-       KB_KEY_PGUP          =      0x68,
+       KeyboardKeyNumpad2      =      0x72,
-       KB_KEY_NUMPAD_1      =      0x69,
+       KeyboardKeyNumpad5      =      0x73,
-       KB_KEY_NUMPAD_SLASH  =      0x6A,
+       KeyboardKeyNumpad6      =      0x74,
-       KB_KEY_NUMPAD_4      =      0x6B,
+       KeyboardKeyNumpad8      =      0x75,
-       KB_KEY_NUMPAD_7      =      0x6C,
+       KeyboardKeyEscape           =      0x76,
-       KB_KEY_NUMPAD_0      =      0x70,
+       KeyboardKeyF11           =      0x78,
-       KB_KEY_NUMPAD_COLON  =      0x71,
+       KeyboardKeyNumpadPlus   =      0x79,
-       KB_KEY_NUMPAD_2      =      0x72,
+       KeyboardKeyNumpad3      =      0x7A,
-       KB_KEY_NUMPAD_5      =      0x73,
+       KeyboardKeyNumpadMinus  =      0x7B,
-       KB_KEY_NUMPAD_6      =      0x74,
+       KeyboardKeyNumpadAsterisk =    0x7C,
-       KB_KEY_NUMPAD_8      =      0x75,
+       KeyboardKeyNumpad9      =      0x7D
-       KB_KEY_ESC           =      0x76,
-       KB_KEY_F11           =      0x78,
-       KB_KEY_NUMPAD_PLUS   =      0x79,
-       KB_KEY_NUMPAD_3      =      0x7A,
-       KB_KEY_NUMPAD_MINUS  =      0x7B,
-       KB_KEY_NUMPAD_ASTERISK =    0x7C,
-       KB_KEY_NUMPAD_9      =      0x7D
 };
       
 typedef struct {
-      unsigned char status;
+      unsigned char ModifierStatus;
-      unsigned char lights;
+      unsigned char Lights;
-      unsigned char scancode;
+      unsigned char Scancode;
-      unsigned char character;
+      unsigned char Character;
-} kb_key;
+} KeyboardKey;
 
 
-//extern char getch();
-extern kb_key getkey();
-extern char scancode_to_ascii(unsigned char scancode, unsigned char status);
-extern unsigned char get_key_status(unsigned char scancode);
-extern void kb_set_repeat(float rate, int delay);
-extern void kb_set_LEDs(unsigned char status);
-
 #endif

SysCore/include/time.h

@@ -18,6 +18,8 @@ typedef struct {
 
 extern void _CLOCK_INC(TIME *tim);
 
+#include "../drivers/clock/clock.h"
+
 //extern char* asctime (TIME time);
 
 #endif

SysCore/lib/compile.bat

@@ -2,7 +2,7 @@
 
 rem NASM and DJGPP executable paths:
 set nasm_path=C:\nasm
-set djgpp_path=C:\DJGPP\bin
+set djgpp_path=C:\mingw\bin
 set objpath=..\objects
 set incpath=../include
 

SysCore/lib/conio.c

@@ -1,6 +1,6 @@
 #include <stdarg.h>
 #include <conio.h>
-#include <hal.h>
+#include <drivers/keyboard.h>
 #include <stdlib.h>
 #include <string.h>
 #include <ctype.h>
@@ -25,6 +25,7 @@ UPoint ScreenSize, Cursor;
 
 void ConsoleInstall(ConsoleScreen screen)
 {
+    
     _console_cursor = screen.cursor;
     _console_putc = screen.putc;
     _console_getc = screen.getc;
@@ -199,7 +200,7 @@ int cgets(char* string, int maxlen)
     memset ((void*)string, 0, maxlen);
 
     int Len = 0, CurPos = 0;
-    kb_key Key;
+    KeyboardKey Key;
     UPoint CursorSave;
 
     while (Len < maxlen)
@@ -216,38 +217,38 @@ int cgets(char* string, int maxlen)
         Cursor = CursorSave;
 
         // Get key and process
-        Key = getkey();
+        Key = GetKey();
 
-        switch (Key.scancode) {
+        switch (Key.Scancode) {
             // Switch overwrite/insert
-            case KB_KEY_INSERT: __cgets__key_insert(); break;
+            case KeyboardKeyInsert: __cgets__key_insert(); break;
 
             // Finish writing (return)
-            case KB_KEY_ENTER: __cgets__key_enter(); break;
+            case KeyboardKeyReturn: __cgets__key_enter(); break;
-            case KB_KEY_NUMPAD_ENTER: __cgets__key_enter(); break;
+            case KeyboardKeyNumpadEnter: __cgets__key_enter(); break;
 
             // Left
-            case KB_KEY_LEFT:
+            case KeyboardKeyLeft:
-                __cgets__move_cursor(string, 0, Len, &CurPos, ((Key.status & KB_KEY_LCTRL) || (Key.status & KB_KEY_RCTRL)));
+                __cgets__move_cursor(string, 0, Len, &CurPos, ((Key.ModifierStatus & KeyboardKeyModifierLeftCtrl) || (Key.ModifierStatus & KeyboardKeyModifierRightCtrl)));
                 break;
 
             // Right
-            case KB_KEY_RIGHT:
+            case KeyboardKeyRight:
-                __cgets__move_cursor(string, 1, Len, &CurPos, ((Key.status & KB_KEY_LCTRL) || (Key.status & KB_KEY_RCTRL)));
+                __cgets__move_cursor(string, 1, Len, &CurPos, ((Key.ModifierStatus & KeyboardKeyModifierLeftCtrl) || (Key.ModifierStatus & KeyboardKeyModifierRightCtrl)));
                 break;
 
-            case KB_KEY_HOME:
+            case KeyboardKeyHome:
                 CurPos = 0;
                 break;
 
-            case KB_KEY_END:
+            case KeyboardKeyEnd:
                 CurPos = Len;
                 break;
 
-            case KB_KEY_BACKSPACE:
+            case KeyboardKeyBackspace:
                 if (CurPos > 0) {
                     int tmp;
-                    if ((Key.status & KB_KEY_LCTRL) || (Key.status & KB_KEY_RCTRL))
+                    if ((Key.ModifierStatus & KeyboardKeyModifierLeftCtrl) || (Key.ModifierStatus & KeyboardKeyModifierRightCtrl))
                         tmp = __cgets__skip_word(string, Len, CurPos, 0);
                     else tmp = CurPos-1;
                     
@@ -258,11 +259,11 @@ int cgets(char* string, int maxlen)
                 break;
 
             // Delete
-            case KB_KEY_DELETE:
+            case KeyboardKeyDelete:
                 if (CurPos < Len) {
                     int tmp;
                     // If CTRL is pressed, foward one word
-                    if ((Key.status & KB_KEY_LCTRL) || (Key.status & KB_KEY_RCTRL))
+                    if ((Key.ModifierStatus & KeyboardKeyModifierLeftCtrl) || (Key.ModifierStatus & KeyboardKeyModifierRightCtrl))
                         tmp = __cgets__skip_word(string, Len, CurPos, 1);
                     else tmp = CurPos+1;
                     
@@ -274,22 +275,22 @@ int cgets(char* string, int maxlen)
 
             // Text character
             default:
-                if (isprint(Key.character)) {
+                if (isprint(Key.Character)) {
                     // fix CAPS bug
-                    if ((Key.lights & KB_KEY_CAPS) && islower((unsigned char)Key.character))
+                    if ((Key.Lights & KeyboardLightCaps) && islower((unsigned char)Key.Character))
-                        Key.character = toupper(Key.character);
+                        Key.Character = toupper(Key.Character);
 
                     // Cursor is at the end of the string
                     if (CurPos == Len) {
-                        Len++; string[Len-1] = Key.character;
+                        Len++; string[Len-1] = Key.Character;
                         string[Len] = 0;
                     }
 
                     // Cursor is not at the end in OverWrite mode
-                    else if (OverWrite) string[CurPos] = Key.character;
+                    else if (OverWrite) string[CurPos] = Key.Character;
 
                     // Cursor is not at the end in Insert mode
-                    else __cgets__insert(string, CurPos, Key.character, &Len);
+                    else __cgets__insert(string, CurPos, Key.Character, &Len);
 
                     // Increase cursor position
                     CurPos++;
@@ -361,13 +362,13 @@ int cputs(const char* str)
 
 int getch()
 {
-    kb_key k;
+    KeyboardKey k;
-    k = getkey();
+    k = GetKey();
     
-    if ((k.lights & KB_KEY_CAPS) && k.character >= 'a' && k.character <= 'z')
+    if ((k.Lights & KeyboardLightCaps) && k.Character >= 'a' && k.Character <= 'z')
-        return (int)(k.character - 'a' + 'A');
+        return (int)(k.Character - 'a' + 'A');
 
-    return k.character;
+    return k.Character;
 }