218 lines
4.3 KiB
NASM
218 lines
4.3 KiB
NASM
bits 32
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; !!! ISRs !!!
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global isr_exception_0
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global isr_exception_1
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global isr_exception_2
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global isr_exception_3
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global isr_exception_4
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global isr_exception_5
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global isr_exception_6
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global isr_exception_7
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global isr_exception_8
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global isr_exception_9
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global isr_exception_10
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global isr_exception_11
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global isr_exception_12
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global isr_exception_13
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global isr_exception_14
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global isr_exception_15
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global isr_exception_16
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global isr_exception_17
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global isr_exception_18
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global isr_exception_19
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global isr_exception_20
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global isr_exception_21
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global isr_exception_22
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global isr_exception_23
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global isr_exception_24
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global isr_exception_25
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global isr_exception_26
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global isr_exception_27
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global isr_exception_28
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global isr_exception_29
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global isr_exception_30
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global isr_exception_31
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isr_exception_0:
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cli
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push byte 0; A normal ISR stub that pops a dummy error code to keep a
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; uniform stack frame
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push byte 0
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jmp isr_common_stub
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isr_exception_1:
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cli
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push byte 0
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push byte 1
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jmp isr_common_stub
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isr_exception_2:
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cli
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push byte 0
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push byte 2
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jmp isr_common_stub
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isr_exception_3:
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cli
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push byte 0
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push byte 3
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jmp isr_common_stub
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isr_exception_4:
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cli
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push byte 0
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push byte 4
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jmp isr_common_stub
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isr_exception_5:
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cli
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push byte 0
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push byte 5
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jmp isr_common_stub
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isr_exception_6:
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cli
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push byte 0
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push byte 6
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jmp isr_common_stub
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isr_exception_7:
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cli
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push byte 0
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push byte 7
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jmp isr_common_stub
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isr_exception_8:
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cli
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push byte 8
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jmp isr_common_stub
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isr_exception_9:
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cli
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push byte 0
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push byte 9
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jmp isr_common_stub
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isr_exception_10:
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cli
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push byte 10
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jmp isr_common_stub
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isr_exception_11:
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cli
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push byte 11
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jmp isr_common_stub
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isr_exception_12:
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cli
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push byte 12
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jmp isr_common_stub
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isr_exception_13:
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cli
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push byte 13
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jmp isr_common_stub
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isr_exception_14:
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cli
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push byte 14
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jmp isr_common_stub
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isr_exception_15:
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cli
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push byte 0
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push byte 15
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jmp isr_common_stub
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isr_exception_16:
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cli
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push byte 0
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push byte 16
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jmp isr_common_stub
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isr_exception_17:
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cli
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push byte 0
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push byte 17
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jmp isr_common_stub
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isr_exception_18:
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cli
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push byte 0
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push byte 18
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jmp isr_common_stub
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isr_exception_19:
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cli
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push byte 0
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push byte 19
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jmp isr_common_stub
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isr_exception_20:
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cli
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push byte 0
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push byte 20
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jmp isr_common_stub
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isr_exception_21:
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cli
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push byte 0
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push byte 21
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jmp isr_common_stub
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isr_exception_22:
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cli
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push byte 0
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push byte 22
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jmp isr_common_stub
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isr_exception_23:
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cli
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push byte 0
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push byte 23
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jmp isr_common_stub
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isr_exception_24:
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cli
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push byte 0
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push byte 24
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jmp isr_common_stub
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isr_exception_25:
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cli
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push byte 0
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push byte 25
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jmp isr_common_stub
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isr_exception_26:
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cli
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push byte 0
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push byte 26
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jmp isr_common_stub
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isr_exception_27:
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cli
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push byte 0
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push byte 27
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jmp isr_common_stub
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isr_exception_28:
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cli
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push byte 0
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push byte 28
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jmp isr_common_stub
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isr_exception_29:
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cli
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push byte 0
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push byte 29
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jmp isr_common_stub
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isr_exception_30:
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cli
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push byte 0
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push byte 30
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jmp isr_common_stub
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isr_exception_31:
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cli
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push byte 0
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push byte 31
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jmp isr_common_stub
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extern IsrsFaultHandler
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isr_common_stub:
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pusha
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push ds
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push es
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push fs
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push gs
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mov ax, 0x10 ; Load the Kernel Data Segment descriptor!
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mov ds, ax
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mov es, ax
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mov fs, ax
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mov gs, ax
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mov eax, esp ; Push us the stack
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push eax
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mov eax, IsrsFaultHandler
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call eax ; A special call, preserves the 'eip' register
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pop eax
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pop gs
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pop fs
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pop es
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pop ds
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popa
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add esp, 8 ; Cleans up the pushed error code and pushed ISR number
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iret ; pops 5 things at once: CS, EIP, EFLAGS, SS, and ESP!
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