Subversion Repositories lxp32

/*
 * This test verifies non-returnable interrupt handling
 * Note: "iret" is never called here
 */

        lc r100, 0x10000000 // test result output pointer
        lcs r101, halt
        lc r102, failure
        lc r103, 0x20000000 // timer: number of pulses (0xFFFFFFFF - infinite)
        lc r104, 0x20000004 // timer: delay between pulses (in cycles)
        lcs r105, success
        
        lcs r32, 0 // counter
        
        lcs iv0, test_loop@1 // set IRF to mark the interrupt as non-returnable
        mov cr, 1 // enable timer interrupt
        sw r104, 100 // delay between interrupts
        sw r103, 100 // generate 100 interrupts
        hlt // wait for a non-returnable interrupt
        
test_loop:
        add r32, r32, 1
        cjmpuge r105, r32, 100 // success
        hlt // wait for a non-returnable interrupt
        
failure:
        sw r100, 2 // should never reach here
        jmp r101 // halt
        
success:
        sw r100, 1 // success
        
halt:
        hlt
        jmp r101 // halt