RossComputerGuy/stardustos

/**
 * NewLand Kernel - (C) 2019 Tristan Ross
 */
.macro IRQ irqnum, isrnum
    .globl irq\irqnum
    irq\irqnum:
        cli
        push $0
        push $\isrnum
        jmp irq_common_stub
.endm

irq_common_stub:
    pusha
    mov %ds, %ax
    push %eax
    mov $0x10, %ax
    mov %ax, %ds
    mov %ax, %es
    mov %ax, %fs
    mov %ax, %gs
    push %esp
    call irq_handler
    pop %ebx
    pop %ebx
    mov %bx, %ds
    mov %bx, %es
    mov %bx, %fs
    mov %bx, %gs
    popa
    add $8, %esp
    sti
    iret

IRQ 0, 32
IRQ 1, 33
IRQ 2, 34
IRQ 3, 35
IRQ 4, 36
IRQ 5, 37
IRQ 6, 38
IRQ 7, 39
IRQ 8, 40
IRQ 9, 41
IRQ 10, 42
IRQ 11, 43
IRQ 12, 44
IRQ 13, 45
IRQ 14, 46
IRQ 15, 47