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# v850 satsub

# mach: all

        .include "testutils.inc"

# If the result of the add is "negative", that means we went too

# positive.  The result should be the most positive number.

        noflags

        seti    0x90000000, r1

        seti    0x70000000, r2

        satsub  r1, r2

        flags   sat + c + v + ns + nz

        reg     r2, 0x7fffffff

# Similarly, if the result of the add is "positive", that means we

# went too negative.  The result should be the most negative number.

        noflags

        seti    0x70000000, r1

        seti    0x90000000, r2

        satsub  r1, r2

        flags   sat + nc + v + s + nz

        reg     r2, 0x80000000

# Check that the SAT flag remains set until reset

        seti    1, r1

        seti    2, r2

        satsub  r1,r2

        flags   sat + nc + nv + ns + nz

        reg     r2, 1

        noflags

        seti    1, r1

        seti    2, r2

        satsub  r1,r2

        flags   nsat + nc + nv + ns + nz

        reg     r2, 1

# Check that results exactly equal to min/max don't saturate

        noflags

        seti    0x90000000, r1

        seti    0x0fffffff, r2

        satsub  r1,r2

        flags   nsat + c + nv + ns + nz

        reg     r2, 0x7fffffff

        noflags

        seti    0x70000000, r1

        seti    0xf0000000, r2

        satsub  r1,r2

        flags   nsat + nc + nv + s + nz

        reg     r2, 0x80000000

        pass