global int_mouse_handler
[extern mouse_handler]

[bits 32]
int_mouse_handler:

 cli
 pusha

 call mouse_handler

 mov al, 0x20   ;Port number AND command number to Acknowledge IRQ
 out 0xa0, al   ; came from slave
 out 0x20, al   ;Acknowledge IRQ, so we keep getting interrupts

 popa
 sti

 iret           ;Interrupt-Return