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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 18:49:16 +0200 |
| commit | b27a6cacb73ca006c6995ca5c3db7347333ba7f4 (patch) | |
| tree | c860bfb7e8a041103ff4ec616ea728bf37026cb0 /target-i386 | |
| parent | 649ad05ed4133d3a48d43881aa9351c024d9cdc1 (diff) | |
| download | qemu-b27a6cacb73ca006c6995ca5c3db7347333ba7f4.zip qemu-b27a6cacb73ca006c6995ca5c3db7347333ba7f4.tar.gz qemu-b27a6cacb73ca006c6995ca5c3db7347333ba7f4.tar.bz2 | |
target-i386: SSE4.2: fix pcmpXstrX instructions in "Equal each" mode
pcmpXstrX instructions in "Equal each" mode force both invalid element
pair to true. It means (upper - MAX(valids, validd)) bits should be set
to 1, not (upper - MAX(valids, validd) + 1).
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Diffstat (limited to 'target-i386')
| -rw-r--r-- | target-i386/ops_sse.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/target-i386/ops_sse.h b/target-i386/ops_sse.h index 51c5fc9..2fc5fdd 100644 --- a/target-i386/ops_sse.h +++ b/target-i386/ops_sse.h @@ -2025,7 +2025,7 @@ static inline unsigned pcmpxstrx(CPUX86State *env, Reg *d, Reg *s, } break; case 2: - res = (2 << (upper - MAX(valids, validd))) - 1; + res = (1 << (upper - MAX(valids, validd))) - 1; res <<= MAX(valids, validd) - MIN(valids, validd); for (i = MIN(valids, validd); i >= 0; i--) { res <<= 1; |