118 lines
1.6 KiB
PHP
118 lines
1.6 KiB
PHP
;idt.inc
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;Author: Josh Holtrop
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;Date: 10/30/03
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;Modified: 01/02/06
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idtr:
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dw 50*8-1 ;size of idt
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dd IDT_V ;address of idt
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%macro isr_label 1
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isr_%1:
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push eax
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mov eax, %1
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jmp isr_main
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%endmacro
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isr_label 0
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isr_label 1
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isr_label 2
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isr_label 3
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isr_label 4
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isr_label 5
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isr_label 6
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isr_label 7
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isr_label 8
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isr_label 9
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isr_label 10
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isr_label 11
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isr_label 12
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isr_label 13
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isr_label 14
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isr_label 15
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isr_label 16
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isr_label 17
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isr_label 18
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isr_label 19
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isr_label 20
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isr_label 21
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isr_label 22
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isr_label 23
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isr_label 24
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isr_label 25
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isr_label 26
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isr_label 27
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isr_label 28
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isr_label 29
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isr_label 30
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isr_label 31
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isr_label 32
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isr_label 33
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isr_label 34
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isr_label 35
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isr_label 36
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isr_label 37
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isr_label 38
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isr_label 39
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isr_label 40
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isr_label 41
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isr_label 42
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isr_label 43
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isr_label 44
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isr_label 45
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isr_label 46
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isr_label 47
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isr_label 48
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isr_label 49
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isr_main:
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; ok, here, we need to duplicate the top item on the stack
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; (the old eax) if the interrupt number is not 8 or 10-14
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; this is to properly align the stack for both exceptions
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; having and not having error codes
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cmp eax, 8
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jz isr_main_nodup ; if int=8, no dup
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cmp eax, 10
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jb isr_main_dup ; if int<10, dup
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cmp eax, 14
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jbe isr_main_nodup ; if int<=14, no dup
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isr_main_dup: ; else dup
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sub esp, 4
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push eax
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mov eax, [esp+8]
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mov [esp+4], eax
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pop eax
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isr_main_nodup:
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push ebx
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push ecx
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push edx
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push edi
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push esi
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push ebp
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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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push esp
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push eax ;interrupt number
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call isr
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add esp, 8
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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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pop ebp
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pop esi
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pop edi
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pop edx
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pop ecx
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pop ebx
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add esp, 4 ;bypass error code
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pop eax ;original saved eax
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iret
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