.global go_usr
go_usr:
    mrs r0, cpsr
    bl itoa
    bl printkl

    /* Actually go to user mode */
    cps #0x10
    ldr sp, =stack_usr

    mrs r0, cpsr
    bl itoa
    bl printkl

    swi #0xc
    swi #0x1
    swi #0xa
    swi #0x0

    b .