; test8 - subroutines, saving registers to the stack

begin:
	mov ax, 1
	mov bx, 2
	mov cx, 3
	mov dx, 4
	jsr func
; the subroutine saves all registers to the stack, modifies them and
; then restores them to their original value
; while in the subroutine we should se 04 03 02 01 0a on the stack
; (the registers and the return address 0a)
end:
	hlt

func:
	push ax
	push bx
	push cx
	push dx
	mov ax, 10
	mov bx, 11
	mov cx, 12
	mov dx, 13
	pop dx
	pop cx
	pop bx
	pop ax
	ret