.intel_syntax noprefix
.extern irq_handler

irq_common_stub:
    // push general purpose registers
    pusha

    // push data segment selector
    mov ax, ds
    push eax

    // use kernel data segment
    mov ax, 0x10
    mov ds, ax
    mov es, ax
    mov fs, ax
    mov gs, ax
    // hand over stack to C function
    push esp
    // and call it
    call irq_handler
    // pop stack pointer again
    pop eax

    // restore original segment pointers segment
    pop eax
    mov ds, ax
    mov es, ax
    mov fs, ax
    mov gs, ax

    // restore registers
    popa

    // remove int_no and err_code from stack
    add esp, 8

    iret

irq0:
	push 0
	push 32
	jmp irq_common_stub

irq1:
	push 1
	push 33
	jmp irq_common_stub

irq2:
	push 2
	push 34
	jmp irq_common_stub

irq3:
	push 3
	push 35
	jmp irq_common_stub

irq4:
	push 4
	push 36
	jmp irq_common_stub

irq5:
	push 5
	push 37
	jmp irq_common_stub

irq6:
	push 6
	push 38
	jmp irq_common_stub

irq7:
	push 7
	push 39
	jmp irq_common_stub

irq8:
	push 8
	push 40
	jmp irq_common_stub

irq9:
	push 9
	push 41
	jmp irq_common_stub

irq10:
	push 10
	push 42
	jmp irq_common_stub

irq11:
	push 11
	push 43
	jmp irq_common_stub

irq12:
	push 12
	push 44
	jmp irq_common_stub

irq13:
	push 13
	push 45
	jmp irq_common_stub

irq14:
	push 14
	push 46
	jmp irq_common_stub

irq15:
	push 15
	push 47
	jmp irq_common_stub

.global irq_stub_table
irq_stub_table:
	.long irq0
	.long irq1
	.long irq2
	.long irq3
	.long irq4
	.long irq5
	.long irq6
	.long irq7
	.long irq8
	.long irq9
	.long irq10
	.long irq11
	.long irq12
	.long irq13
	.long irq14
	.long irq15