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# sh testcase for subv $rm, $rn -*- Asm -*-
# mach: all
# as: -isa=shcompact
# ld: -m shelf32

        .include "compact/testutils.inc"

        start
zero:
        mov #0, r0
        mov #0, r1
        subv r0, r1
        bt wrong
        assert r1, #0

one:
        mov #10, r0
        mov #0, r1
        subv r0, r1
        bt wrong
        not r1, r1
        assert r1, #9

large:
        # Produce MAXINT in R0.
        mov #0, r0
        not r0, r0
        shlr r0

        # Put -3 into R1.
        mov #3, r1
        neg r1, r1

        # Subtract them and underflow.
        subv r0, r1
        bf wrong

another:
        # Produce MAXINT in R0.
        mov #0, r0
        not r0, r0
        shlr r0
        
        # Put -3 into R1.
        mov #3, r1
        neg r1, r1
        
        # Subtract them and overflow.
        subv r1, r0
        bf wrong
                
okay:
        pass
wrong:
        fail