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/*
 * Test "hlt" instruction
 */

        lc r100, 0x10000000 // test result output pointer
        lc r101, halt
        lc r103, 0x20000000 // timer: number of pulses (0xFFFFFFFF - infinite)
        lc r104, 0x20000004 // timer: delay between pulses (in cycles)
        
        lc iv0, timer_handler
        mov r10, 2
        mov cr, 1 // enable interrupt 0
        lc r0, 1000
        sw r104, r0
        sw r103, 1
        
        hlt
        
        sw r100, r10 // r10 will be 2 if interrupt hasn't been called, which is a failure code
        
halt:
        hlt
        jmp r101 // halt
        
timer_handler:
        mov r10, 1
        iret