interrupt_handler.s

;Generic Interrupt Handler
;
extern interrupt_handler

%macro no_error_code_interrupt_handler 1
global interrupt_handler_%1
interrupt_handler_%1:
	push	dword 0                     ; push 0 as error code
	push	dword %1                    ; push the interrupt number
	jmp	common_interrupt_handler    ; jump to the common handler
%endmacro

%macro error_code_interrupt_handler 1
global interrupt_handler_%1
interrupt_handler_%1:
	push    dword %1                    ; push the interrupt number
	jmp     common_interrupt_handler    ; jump to the common handler
%endmacro

common_interrupt_handler:               ; the common parts of the generic interrupt handler
	; save the registers
	push    eax
	push    ebx
	push	ecx
	push	edx
	push	ebp
	push	esi
	push	edi

        ; call the C function
        call    interrupt_handler

        ; restore the registers
	pop	edi
	pop	esi
	pop	ebp
	pop	edx
	pop	ecx
	pop	ebx
        pop     eax

	; restore the esp
	add     esp, 8

	; return to the code that got interrupted
	iret

       no_error_code_interrupt_handler 33	; create handler for interrupt 1 (keyboard)
       no_error_code_interrupt_handler 14	; create handler for interrupt 2 (paging)