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| author | Aurelien Jarno <aurelien@aurel32.net> | 2013-03-26 19:56:01 +0100 |
|---|---|---|
| committer | Aurelien Jarno <aurelien@aurel32.net> | 2013-04-01 18:49:15 +0200 |
| commit | da5156cd9a62274839d6fa685cc52614886cc722 (patch) | |
| tree | e69ff981c7d3eedd7b93acc4aea3c99afdc8a3e7 /target-i386/ops_sse.h | |
| parent | 34c6addd4b22583e7b408c0d1452eab753cbfb62 (diff) | |
| download | qemu-da5156cd9a62274839d6fa685cc52614886cc722.tar.gz | |
target-i386: SSE4.2: fix pcmpgtq instruction
The "Intel 64 and IA-32 Architectures Software Developer's Manual" (at
least recent versions) clearly says that the comparison is signed.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Diffstat (limited to 'target-i386/ops_sse.h')
| -rw-r--r-- | target-i386/ops_sse.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/target-i386/ops_sse.h b/target-i386/ops_sse.h index cad9d758de..0136df9345 100644 --- a/target-i386/ops_sse.h +++ b/target-i386/ops_sse.h @@ -1933,8 +1933,7 @@ void glue(helper_mpsadbw, SUFFIX)(CPUX86State *env, Reg *d, Reg *s, } /* SSE4.2 op helpers */ -/* it's unclear whether signed or unsigned */ -#define FCMPGTQ(d, s) (d > s ? -1 : 0) +#define FCMPGTQ(d, s) ((int64_t)d > (int64_t)s ? -1 : 0) SSE_HELPER_Q(helper_pcmpgtq, FCMPGTQ) static inline int pcmp_elen(CPUX86State *env, int reg, uint32_t ctrl) |