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target/sparc: Implement FCHKSM16

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Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2023-11-04 14:57:27 -07:00
parent c973b4e8df
commit 7837185e40
4 changed files with 57 additions and 0 deletions
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23
target/sparc/vis_helper.c
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@ -389,3 +389,26 @@ uint64_t helper_cmask32(uint64_t gsr, uint64_t src)
return deposit64(gsr, 32, 32, mask);
}
static inline uint16_t do_fchksm16(uint16_t src1, uint16_t src2)
{
uint16_t a = src1 + src2;
uint16_t c = a < src1;
return a + c;
}
uint64_t helper_fchksm16(uint64_t src1, uint64_t src2)
{
VIS64 r, s1, s2;
s1.ll = src1;
s2.ll = src2;
r.ll = 0;
r.VIS_W64(0) = do_fchksm16(s1.VIS_W64(0), s2.VIS_W64(0));
r.VIS_W64(1) = do_fchksm16(s1.VIS_W64(1), s2.VIS_W64(1));
r.VIS_W64(2) = do_fchksm16(s1.VIS_W64(2), s2.VIS_W64(2));
r.VIS_W64(3) = do_fchksm16(s1.VIS_W64(3), s2.VIS_W64(3));
return r.ll;
}