interruptstubs.s

.set IRQ_BASE, 0x20
.section .text 

.extern _ZN16InterruptManager15HandleInterruptEhj

.macro HandleException num
.global _ZN16InterruptManager19HandleException\num\()Ev
_ZN16InterruptManager19HandleException\num\()Ev:
    movb $\num, (interruptnumber)
    jmp int_bottom
.endm

.macro HandleInterruptRequest num
.global _ZN16InterruptManager26HandleInterruptRequest\num\()Ev
_ZN16InterruptManager26HandleInterruptRequest\num\()Ev:
    movb $\num + IRQ_BASE, (interruptnumber)
    jmp int_bottom
.endm

HandleInterruptRequest 0x00
HandleInterruptRequest 0x01

int_bottom:
    pusha
    pushl %ds
    pushl %es
    pushl %fs
    pushl %gs

    pushl %esp
    push (interruptnumber)
    call _ZN16InterruptManager15HandleInterruptEhj
    add %esp, 6
    mov %eax, %esp

    pop %gs
    pop %fs
    pop %esp
    pop %ds
    popa

.global _ZN16InterruptManager15InterruptIgnoreEv
_ZN16InterruptManager15InterruptIgnoreEv:
    iret

.data
    interruptnumber: .byte 0