Subversion Repositories lxp32

/*

 * Test for temporarily blocked interrupts

 */

        lc r100, 0x10000000 // test result output pointer

        lc r101, halt

        lc r102, failure

        lc r103, 0x20000000 // timer: number of pulses (0xFFFFFFFF - infinite)

        lc r104, 0x20000004 // timer: delay between pulses (in cycles)

        lc iv0, timer_handler

        lc cr, 0x101 // enable interrupt 0 in temporarily blocked state

        lc r32, 0 // interrupt handler call counter

        lc r33, 1000 // loop counter

        lc r34, loop1

        lc r35, loop2

        sw r104, 100

        sw r103, 1

loop1:

        sub r33, r33, 1

        cjmpug r34, r33, 0 // loop1

        lc r33, 1000

        mov cr, 1 // unblock interrupt 0

loop2:

        sub r33, r33, 1

        cjmpug r35, r33, 0 // loop2

// r32 should be 1 by this point

        cjmpne r102, r32, 1 // failure

        sw r100, 1

        jmp r101 // halt

failure:

        sw r100, 2

halt:

        hlt

        jmp r101 // halt

timer_handler:

        add r32, r32, 1

        iret