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https://github.com/tailix/kernel.git
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110 lines
3.5 KiB
NASM
110 lines
3.5 KiB
NASM
#include "config.h"
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%macro INTERRUPT_NOERRCODE 2
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[GLOBAL interrupt_%2]
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interrupt_%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 %1_wrapper
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%endmacro
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%macro INTERRUPT_ERRCODE 2
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[GLOBAL interrupt_%2]
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interrupt_%2:
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cli
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push byte %2
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jmp %1_wrapper
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%endmacro
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%macro INTERRUPT_COMMON 1
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[EXTERN %1_handler]
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%1_wrapper:
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pushad
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mov ax, ds ; Lower 16-bits of eax = ds.
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push dword eax ; save the data segment descriptor
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mov ax, GDT_KERNEL_DS_SELECTOR
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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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call %1_handler
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pop dword eax ; reload the original 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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popad
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add esp, 8 ; Cleans up the pushed error code and pushed ISR number
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sti
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iret ; pops 5 things at once: CS, EIP, EFLAGS, SS, and ESP
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%endmacro
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INTERRUPT_COMMON exception
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INTERRUPT_COMMON hwint
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INTERRUPT_COMMON syscall
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; Protected mode exteptions
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INTERRUPT_NOERRCODE exception, 0 ; #DE - Divide Error Exception
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INTERRUPT_NOERRCODE exception, 1 ; #DB - Debug Exception
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INTERRUPT_NOERRCODE exception, 2 ; NMI - Non-maskable interrupt
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INTERRUPT_NOERRCODE exception, 3 ; #BP - Breakpoint Exception
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INTERRUPT_NOERRCODE exception, 4 ; #OF - Overflow Exception
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INTERRUPT_NOERRCODE exception, 5 ; #BR - BOUND Range Exceeded Exception
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INTERRUPT_NOERRCODE exception, 6 ; #UD - Invalid Opcode Exception
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INTERRUPT_NOERRCODE exception, 7 ; #NM - Device Not Available Exception
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INTERRUPT_ERRCODE exception, 8 ; #DF - Double Fault Exception
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INTERRUPT_NOERRCODE exception, 9 ; Reserved - Coprocessor Segment Overrun
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INTERRUPT_ERRCODE exception, 10 ; #TS - Invalid TSS Exception
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INTERRUPT_ERRCODE exception, 11 ; #NP - Segment Not Present
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INTERRUPT_ERRCODE exception, 12 ; #SS - Stack Fault Exception
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INTERRUPT_ERRCODE exception, 13 ; #GP - General Protection Exception
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INTERRUPT_ERRCODE exception, 14 ; #PF - Page-Fault Exception
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INTERRUPT_NOERRCODE exception, 15 ; Reserved
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INTERRUPT_NOERRCODE exception, 16 ; #MF - x87 FPU Floating-Point Error
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INTERRUPT_ERRCODE exception, 17 ; #AC - Alignment Check Exception
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INTERRUPT_NOERRCODE exception, 18 ; #MC - Machine-Check Exception
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INTERRUPT_NOERRCODE exception, 19 ; #XF - SIMD Floating-Point Exception
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INTERRUPT_NOERRCODE exception, 20 ; Reserved
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INTERRUPT_NOERRCODE exception, 21 ; Reserved
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INTERRUPT_NOERRCODE exception, 22 ; Reserved
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INTERRUPT_NOERRCODE exception, 23 ; Reserved
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INTERRUPT_NOERRCODE exception, 24 ; Reserved
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INTERRUPT_NOERRCODE exception, 25 ; Reserved
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INTERRUPT_NOERRCODE exception, 26 ; Reserved
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INTERRUPT_NOERRCODE exception, 27 ; Reserved
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INTERRUPT_NOERRCODE exception, 28 ; Reserved
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INTERRUPT_NOERRCODE exception, 29 ; Reserved
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INTERRUPT_NOERRCODE exception, 30 ; Reserved
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INTERRUPT_NOERRCODE exception, 31 ; Reserved
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; Hardware IRQs
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INTERRUPT_NOERRCODE hwint, 32 ; Programmable Interval Timer
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INTERRUPT_NOERRCODE hwint, 33 ; Keyboard
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INTERRUPT_NOERRCODE hwint, 34 ; Slave PIC
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INTERRUPT_NOERRCODE hwint, 35 ; COM 2/4
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INTERRUPT_NOERRCODE hwint, 36 ; COM 1/3
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INTERRUPT_NOERRCODE hwint, 37 ; LPT 2
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INTERRUPT_NOERRCODE hwint, 38 ; Floppy Drive Controller
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INTERRUPT_NOERRCODE hwint, 39 ; LPT 1
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INTERRUPT_NOERRCODE hwint, 40 ; Real Time Clock
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INTERRUPT_NOERRCODE hwint, 41 ; Master PIC
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INTERRUPT_NOERRCODE hwint, 42 ; Reserved
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INTERRUPT_NOERRCODE hwint, 43 ; Reserved
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INTERRUPT_NOERRCODE hwint, 44 ; Reserved
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INTERRUPT_NOERRCODE hwint, 45 ; Coprocessor exception
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INTERRUPT_NOERRCODE hwint, 46 ; Hard Drive Controller
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INTERRUPT_NOERRCODE hwint, 47 ; Reserved
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; Syscalls
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INTERRUPT_NOERRCODE syscall, INT_SYSCALL
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