CTAOS v6
This commit is contained in:
BIN
_play/fat16.img.gz
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BIN
_play/fat16.img.gz
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Binary file not shown.
BIN
_play/fat16.img/fat16.img
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BIN
_play/fat16.img/fat16.img
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105
_play/stage1.asm
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105
_play/stage1.asm
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@@ -0,0 +1,105 @@
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bits 16
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org 0x07C0
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xchg bx, bx
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jmp main
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VideoAddrSeg dw 0xB800
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VideoAddrOff dw 0x0000
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Cursor dw 0
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; Print character to screen; AL = character
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PrintCh:
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pusha ; save all registers
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push ax ; save ax
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mov ax, [Cursor] ; get cursor position
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mov bx, 2
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xor dx, dx
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mul bx ; multiply by two
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mov bx, [VideoAddrSeg] ; es = video memory segment
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mov cx, [VideoAddrOff] ; di = video memory offset
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add cx, ax ; add it to di
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pop ax
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mov byte [bx:cx], al ; put character
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inc word[Cursor] ; Cursor++
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call UpdateCursor
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popa
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ret
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; Add 80 to cursor
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NewLine:
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add word[Cursor], 80
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call UpdateCursor
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ret
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; Go to the beginning of the line
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BeginLine:
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pusha ; save all registers
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mov ax, [Cursor] ; get cursor position
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mov bx, 80 ; number of chars/line
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xor dx, dx ; empty dx
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div bx ; divide ax/bx
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sub word[Cursor], dx ; subtract remainder from cursor
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call UpdateCursor
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popa
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ret
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; Update cursor position
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UpdateCursor:
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ret
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main:
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mov ax, 0
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.loop:
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push ax
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mov bx, 10
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xor dx, dx
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div bx
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cmp dx, 0
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je .newline
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.back:
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cmp ax, 256
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je .done
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call PrintCh
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inc ax
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jmp .loop
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.newline:
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call NewLine
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call BeginLine
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jmp .back
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.done:
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mov ax, 'D'
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call PrintCh
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mov ax, 'O'
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call PrintCh
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mov ax, 'N'
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call PrintCh
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mov ax, 'E'
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call PrintCh
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cli
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hlt
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TIMES 510-($-$$) db 0
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DW 0xAA55
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24
_play/stage2/MAKE.BAT
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24
_play/stage2/MAKE.BAT
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@@ -0,0 +1,24 @@
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@echo off
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set nasm_path=C:\nasm
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set djgpp_path=C:\DJGPP\bin
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goto build
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:error
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@echo.
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@echo There have been build errors. Building halted.
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@pause
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exit
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:build
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@echo Compiling stage 2...
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del stage2.cta
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%nasm_path%\nasm.exe -f bin stage2.asm -o stage2.cta
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:test
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if not exist stage2.cta goto error
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:copy
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@echo Copying stage 2 to floppy...
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copy stage2.cta A:\stage2.cta >nul
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BIN
_play/stage2/STAGE2.CTA
Normal file
BIN
_play/stage2/STAGE2.CTA
Normal file
Binary file not shown.
201
_play/stage2/stage2.asm
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201
_play/stage2/stage2.asm
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@@ -0,0 +1,201 @@
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;***** stage2.asm ****************************************************
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;* (c) 2010 CTA Systems Inc. All rights reserved. Glory To God *
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;* *
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;* Playground........ *
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;* ================== *
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;* *
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;************************************************************ cta os */
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bits 16
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org 0x500
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xchg bx,bx
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jmp main ; go to start
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;*******************************************************
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; Preprocessor directives
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;*******************************************************
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%include "stdio.inc" ; basic i/o routines
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;*******************************************************
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; Data Section
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;*******************************************************
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vbeControllerInfo:
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vbeControllerInfo_signature dd 0 ; "VESA", taken as 4 bytes
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vbeControllerInfo_version dw 0 ; 0x0300 for VBE 3.0
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vbeControllerInfo_oemString dd 0 ; isa vbeFarPtr, taken as 2 shorts
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vbeControllerInfo_capabilities dd 0 ; taken as 4 bytes
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vbeControllerInfo_videomodes dd 0 ; isa vbeFarPtr, taken as 2 shorts
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vbeControllerInfo_totalMemory dw 0 ; as # of 64k blocks
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vbeControllerInfoReserved times 1EEh db 0
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TemporaryStorage dd 0 ; temporary storage
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printSuccess db 0x0D, 0x0A, "Information received successfully: ", 0x0A, 0x0D, 0x00
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printInfo1 db "-> Signature: ", 0x00
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printInfo2 db 0x0D, 0x0A, "-> Version: 0x", 0x00
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printInfo3 db 0x0D, 0x0A, "-> OEMString (address): 0x", 0x00
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printInfo4 db 0x0D, 0x0A, "-> Capabilities: 0x", 0x00
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printInfo5 db 0x0D, 0x0A, "-> Video modes (address): 0x", 0x00
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printInfo6 db 0x0D, 0x0A, "-> Total memory (KB): ", 0x00
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printFailure db "Error, unexpected return: ", 0x00
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;*******************************************************
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; Code Section
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;*******************************************************
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main:
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;-------------------------------;
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; Setup segments and stack ;
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;-------------------------------;
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cli ; clear interrupts
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xor ax, ax ; null segments
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mov ds, ax
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mov es, ax
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mov ax, 0x0000 ; stack begins at 0x9000-0xffff
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mov ss, ax
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mov sp, 0xFFFF
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sti ; enable interrupts
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; Switch to graphic mode
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mov ax, 0012h
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int 10h
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int 09h
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mov ax, 0
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int 16h
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; **************************************
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; * Start by getting some VESA info *
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; **************************************
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xor eax, eax
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mov ebx, eax
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mov ecx, eax
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mov edx, eax
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mov eax, vbeControllerInfo
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push eax
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and eax, 0fh
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mov dx, ax
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pop eax
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shr eax, 4
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mov es, ax
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mov di, dx
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mov ax, 4F00h
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int 10h
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; See if interrupt returned ok.
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cmp ax, 004Fh
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je .yes
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; no:
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mov si, printFailure ; print error message
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call Puts16
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call PrintHEX ; print error code
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jmp .done
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.yes:
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mov si, printSuccess ; print success message
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call Puts16
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; Print Info1
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mov si, printInfo1
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call Puts16
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mov si, vbeControllerInfo_signature
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call Puts16
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; Print Info2
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mov si, printInfo2
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call Puts16
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xor eax, eax
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mov ax, [vbeControllerInfo_version]
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call PrintHEX
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; Print Info3
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mov si, printInfo3
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call Puts16
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mov eax, [vbeControllerInfo_oemString]
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call PrintHEX
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; Print Info4
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mov si, printInfo4
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call Puts16
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mov eax, [vbeControllerInfo_capabilities]
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call PrintHEX
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; Print Info5
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mov si, printInfo5
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call Puts16
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mov eax, [vbeControllerInfo_videomodes]
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call PrintHEX
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; Print Info6
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mov si, printInfo6
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call Puts16
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xor eax, eax
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mov ax, [vbeControllerInfo_totalMemory]
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call PrintINT
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.done:
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cli
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hlt
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vbeModeInfo:
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vbeModeInfo_attributes dw 0
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vbeModeInfo_winA db 0
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vbeModeInfo_winB db 0
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vbeModeInfo_granularity dw 0
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vbeModeInfo_winsize dw 0
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vbeModeInfo_segmentA dw 0
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vbeModeInfo_segmentB dw 0
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vbeModeInfo_realFctPtr dd 0
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vbeModeInfo_pitc dw 0 ; // bytes per scanline
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vbeModeInfo_Xres dw 0
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vbeModeInfo_Yres dw 0
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vbeModeInfo_Wchar db 0
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vbeModeInfo_Ychar db 0
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vbeModeInfo_planes db 0
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vbeModeInfo_bpp db 0
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vbeModeInfo_banks db 0
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vbeModeInfo_memory_model db 0
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vbeModeInfo_bank_size db 0
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vbeModeInfo_image_pages db 0
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vbeModeInfo_reserved0 db 0
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; VBE v1.2+
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vbeModeInfo_red_mask db 0
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vbeModeInfo_red_position db 0
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vbeModeInfo_green_mask db 0
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vbeModeInfo_green_position db 0
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vbeModeInfo_blue_mask db 0
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vbeModeInfo_blue_position db 0
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vbeModeInfo_rsv_mask db 0
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vbeModeInfo_rsv_position db 0
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vbeModeInfo_directcolor_attrib db 0
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; VBE v2.0+
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vbeModeInfo_physbase dd 0
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vbeModeInfo_start_offscreen_mem dd 0
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vbeModeInfo_size_offscreen_mem dw 0
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; VBE v3.0+
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vbeModeInfo_bytes_per_scanline dw 0
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vbeModeInfo_number_images_banked db 0
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vbeModeInfo_number_images_linear db 0
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vbeModeInfo_linear_red_mask db 0
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vbeModeInfo_linear_red_pos db 0
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vbeModeInfo_linear_green_mask db 0
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vbeModeInfo_linear_green_pos db 0
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vbeModeInfo_linear_blue_mask db 0
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vbeModeInfo_linear_blue_pos db 0
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vbeModeInfo_linear_res_mask db 0
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vbeModeInfo_linear_res_pos db 0
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vbeModeInfo_max_pixel_clock dd 0
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386
_play/stage2/stdio.inc
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386
_play/stage2/stdio.inc
Normal file
@@ -0,0 +1,386 @@
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;***** stdio.inc *****************************************************
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;* (c) 2010 CTA Systems Inc. All rights reserved. Glory To God *
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;* *
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;* Standard Input/Output routines *
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;* ============================== *
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;* *
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;************************************************************ cta os */
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%ifndef __STDIO_INC_CTA008__
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%define __STDIO_INC_CTA008__
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;==========================================================
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;
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; 16 Bit Real Mode Routines
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;==========================================================
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;************************************************;
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; Puts16 ()
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; -Prints a null terminated string
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; DS=>SI: 0 terminated string
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;************************************************;
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tmpStr db " ", 0x0D, 0x0A, 0x00
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hex db "0123456789abcdef"
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bits 16
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Puts16:
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pusha ; save registers
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.Loop1:
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lodsb ; load next byte from string from SI to AL
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or al, al ; Does AL=0?
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jz Puts16Done ; Yep, null terminator found-bail out
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mov ah, 0eh ; Nope-Print the character
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int 10h ; invoke BIOS
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jmp .Loop1 ; Repeat until null terminator found
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Puts16Done:
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popa ; restore registers
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ret ; we are done, so return
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;************************************************;
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; PrintINT (uint16_t number)
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; -Prints an integer on the screen
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;
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; Parameters: ax = number
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;************************************************;
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PrintINT:
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pusha
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push ax ; save ax
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mov bx, 10 ; base 10 in bx
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call DigitsINT ; get number of digits
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mov cx, ax ; move in cx number of digits
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pop ax ; restore ax = number
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mov byte[tmpStr+ecx], 0x00 ; Mark end of string
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.loop:
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xor dx, dx
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div bx ; divide by base
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add dx, '0'
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mov byte[tmpStr+ecx-1], dl ; write in position
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loop .loop ; loop while cx > 0
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mov si, tmpStr
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call Puts16
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.done:
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popa
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ret
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;************************************************;
|
||||
; PrintHEX (uint32_t number)
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; -Prints an integer in hex on the screen
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;
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||||
; Parameters: push on the stack number
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;************************************************;
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PrintHEX:
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pusha
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||||
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||||
push eax ; save ax
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||||
call DigitsHEX ; get number of digits
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||||
mov ecx, eax ; move in cx number of digits
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||||
pop eax ; restore ax = number
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||||
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||||
mov byte[tmpStr+ecx], 0x00 ; Mark end of string
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||||
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||||
.loop:
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||||
mov edx, eax ; Put number in edx
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||||
and edx, 0x0f ; Remove all digits but the last
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||||
|
||||
shr eax, 4 ; Remove digit from end
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||||
|
||||
push eax ; save eax
|
||||
xor eax, eax ; make it 0
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||||
mov al, [hex+edx]
|
||||
|
||||
mov byte[tmpStr+ecx-1], al ; write in position
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||||
|
||||
pop eax
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||||
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||||
loop .loop ; loop while cx > 0
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||||
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||||
mov si, tmpStr
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||||
call Puts16
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||||
|
||||
.done:
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||||
popa
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||||
ret
|
||||
|
||||
|
||||
;************************************************;
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||||
; DigitsHEX (uint32_t number)
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||||
; -Calculate number of digits of a number in hex
|
||||
;
|
||||
; Parameters: number in eax
|
||||
; Returns: value in eax
|
||||
;************************************************;
|
||||
_Number dd 0
|
||||
DigitsHEX:
|
||||
pusha ; Save all registers
|
||||
|
||||
xor ebx, ebx ; Empty registers
|
||||
mov ecx, ebx
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||||
mov edx, ebx
|
||||
|
||||
.loop:
|
||||
cmp eax, 0
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||||
je .done
|
||||
shr eax, 4
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||||
inc ecx
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||||
jmp .loop
|
||||
|
||||
.done:
|
||||
mov dword[_Number], ecx
|
||||
popa
|
||||
mov eax, [_Number]
|
||||
ret
|
||||
|
||||
;************************************************;
|
||||
; DigitsINT (uint16_t number, uint16_t base)
|
||||
; -Calculate number of digits of a number in the specified base
|
||||
;
|
||||
; Parameters: number in ax, base in bx
|
||||
; Returns: value in ax
|
||||
;************************************************;
|
||||
DigitsINT:
|
||||
pusha ; Save all registers
|
||||
|
||||
xor cx, cx ; Empty registers
|
||||
|
||||
.loop:
|
||||
cmp ax, 0
|
||||
je .done
|
||||
xor dx, dx
|
||||
div bx
|
||||
inc cx
|
||||
jmp .loop
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||||
|
||||
.done:
|
||||
mov word[_Number], cx
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||||
popa
|
||||
mov ax, [_Number]
|
||||
ret
|
||||
;==========================================================
|
||||
;
|
||||
; 32 Bit Protected Mode Routines
|
||||
;==========================================================
|
||||
|
||||
;bits 32
|
||||
|
||||
;%define VIDMEM 0xB8000 ; video memory
|
||||
;%define COLS 80 ; width and height of screen
|
||||
;%define LINES 25
|
||||
;%define CHAR_ATTRIB 14 ; character attribute (White text on black background)
|
||||
|
||||
;_CurX db 0 ; current x/y location
|
||||
;_CurY db 0
|
||||
|
||||
;**************************************************;
|
||||
; Putch32 ()
|
||||
; - Prints a character to screen
|
||||
; BL => Character to print
|
||||
;**************************************************;
|
||||
|
||||
;Putch32:
|
||||
;
|
||||
; pusha
|
||||
; mov edi, VIDMEM
|
||||
;
|
||||
; xor eax, eax ; clear eax
|
||||
;
|
||||
; ; y * screen width
|
||||
;
|
||||
; mov ecx, COLS*2 ; Mode 7 has 2 bytes per char, so its COLS*2 bytes per line
|
||||
; mov al, byte [_CurY] ; get y pos
|
||||
; mul ecx ; multiply y*COLS
|
||||
; push eax ; save eax--the multiplication
|
||||
|
||||
; now add _CurX * 2
|
||||
|
||||
; mov al, byte [_CurX] ; multiply _CurX by 2 because it is 2 bytes per char
|
||||
; mov cl, 2
|
||||
; mul cl
|
||||
; pop ecx ; pop y*COLS result
|
||||
; add eax, ecx
|
||||
|
||||
; add the position to draw to the base of vid memory
|
||||
|
||||
; xor ecx, ecx
|
||||
; add edi, eax ; add it to the base address
|
||||
;
|
||||
; watch for new line
|
||||
|
||||
; cmp bl, 0x0A ; is it a newline character?
|
||||
; je .Row ; yep--go to next row
|
||||
;
|
||||
; print the character
|
||||
|
||||
; mov dl, bl ; Get character
|
||||
; mov dh, CHAR_ATTRIB ; the character attribute
|
||||
; mov word [edi], dx ; write to video display
|
||||
;
|
||||
; ; go to next location
|
||||
|
||||
; inc byte [_CurX] ; go to next character
|
||||
; jmp .done ; nope, bail out
|
||||
|
||||
;.Row:
|
||||
; mov byte [_CurX], 0 ; go back to col 0
|
||||
; inc byte [_CurY] ; go to next row
|
||||
|
||||
;.done:
|
||||
; popa
|
||||
; ret
|
||||
|
||||
;**************************************************;
|
||||
; Puts32 ()
|
||||
; - Prints a null terminated string
|
||||
; parm\ EBX = address of string to print
|
||||
;**************************************************;
|
||||
|
||||
;Puts32:
|
||||
|
||||
; pusha
|
||||
; push ebx ; copy the string address
|
||||
; pop edi
|
||||
|
||||
;.loop:
|
||||
|
||||
;-------------------------------;
|
||||
; Get character ;
|
||||
;-------------------------------;
|
||||
|
||||
; mov bl, byte [edi] ; get next character
|
||||
; cmp bl, 0 ; is it 0 (Null terminator)?
|
||||
; je .done ; yep-bail out
|
||||
|
||||
;-------------------------------;
|
||||
; Print the character ;
|
||||
;-------------------------------;
|
||||
|
||||
; call Putch32 ; Nope-print it out
|
||||
|
||||
;-------------------------------;
|
||||
; Go to next character ;
|
||||
;-------------------------------;
|
||||
|
||||
; inc edi ; go to next character
|
||||
; jmp .loop
|
||||
|
||||
;.done:
|
||||
|
||||
;-------------------------------;
|
||||
; Update hardware cursor ;
|
||||
;-------------------------------;
|
||||
|
||||
; mov bh, byte [_CurY] ; get current position
|
||||
; mov bl, byte [_CurX]
|
||||
; call MovCur ; update cursor
|
||||
|
||||
; popa ; restore registers, and return
|
||||
; ret
|
||||
|
||||
;**************************************************;
|
||||
; MoveCur ()
|
||||
; - Update hardware cursor
|
||||
; parm/ bh = Y pos
|
||||
; parm/ bl = x pos
|
||||
;**************************************************;
|
||||
|
||||
|
||||
|
||||
;bits 32
|
||||
|
||||
;MovCur:
|
||||
|
||||
; pusha
|
||||
;
|
||||
;-------------------------------;
|
||||
; Get current position ;
|
||||
;-------------------------------;
|
||||
|
||||
; location = _CurX + _CurY * COLS
|
||||
|
||||
; xor eax, eax
|
||||
; mov ecx, COLS
|
||||
; mov al, bh ; get y pos
|
||||
; mul ecx ; multiply y*COLS
|
||||
; add al, bl ; Now add x
|
||||
; mov ebx, eax
|
||||
;
|
||||
;--------------------------------------;
|
||||
; Set low byte index to VGA register ;
|
||||
;--------------------------------------;
|
||||
|
||||
; mov al, 0x0f
|
||||
; mov dx, 0x03D4
|
||||
; out dx, al
|
||||
;
|
||||
; mov al, bl
|
||||
; mov dx, 0x03D5
|
||||
; out dx, al ; low byte
|
||||
|
||||
;---------------------------------------;
|
||||
; Set high byte index to VGA register ;
|
||||
;---------------------------------------;
|
||||
|
||||
; xor eax, eax
|
||||
|
||||
; mov al, 0x0e
|
||||
; mov dx, 0x03D4
|
||||
; out dx, al
|
||||
|
||||
; mov al, bh
|
||||
; mov dx, 0x03D5
|
||||
; out dx, al ; high byte
|
||||
|
||||
; popa
|
||||
; ret
|
||||
|
||||
;**************************************************;
|
||||
; ClrScr32 ()
|
||||
; - Clears screen
|
||||
;**************************************************;
|
||||
;
|
||||
;bits 32
|
||||
;
|
||||
;ClrScr32:
|
||||
;
|
||||
; pusha
|
||||
; cld
|
||||
; mov edi, VIDMEM
|
||||
; mov cx, 2000
|
||||
; mov ah, CHAR_ATTRIB
|
||||
; mov al, ' '
|
||||
; rep stosw
|
||||
; mov byte [_CurX], 0
|
||||
; mov byte [_CurY], 0
|
||||
; popa
|
||||
; ret
|
||||
|
||||
;**************************************************;
|
||||
; GotoXY ()
|
||||
; - Set current X/Y location
|
||||
; parm\ AL=X position
|
||||
; parm\ AH=Y position
|
||||
;**************************************************;
|
||||
|
||||
;bits 32
|
||||
|
||||
;GotoXY:
|
||||
; pusha
|
||||
; mov [_CurX], al
|
||||
; mov [_CurY], ah
|
||||
; popa
|
||||
; ret
|
||||
|
||||
|
||||
%endif ;__STDIO_INC_67343546FDCC56AAB872_INCLUDED__
|
||||
Reference in New Issue
Block a user