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