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[Qemu-devel] [PATCH 06/10] target-i386: SSE4.2: fix pcmpXstrX instructio
From: |
Aurelien Jarno |
Subject: |
[Qemu-devel] [PATCH 06/10] target-i386: SSE4.2: fix pcmpXstrX instructions in "Equal each" mode |
Date: |
Tue, 26 Mar 2013 20:01:38 +0100 |
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).
Signed-off-by: Aurelien Jarno <address@hidden>
---
target-i386/ops_sse.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
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;
--
1.7.10.4
- [Qemu-devel] [PATCH 03/10] target-i386: SSE4.2: fix pcmpXstri instructions, (continued)
- [Qemu-devel] [PATCH 03/10] target-i386: SSE4.2: fix pcmpXstri instructions, Aurelien Jarno, 2013/03/26
- [Qemu-devel] [PATCH 04/10] target-i386: SSE4.2: fix pcmpXstrm instructions, Aurelien Jarno, 2013/03/26
- [Qemu-devel] [PATCH 02/10] target-i386: SSE4.2: fix pcmpgtq instruction, Aurelien Jarno, 2013/03/26
- [Qemu-devel] [PATCH 09/10] target-i386: enable SSE4.1 and SSE4.2 in TCG mode, Aurelien Jarno, 2013/03/26
- [Qemu-devel] [PATCH 10/10] target-i386: SSE4.2: use clz32/ctz32 instead of reinventing the wheel, Aurelien Jarno, 2013/03/26
- [Qemu-devel] [PATCH 06/10] target-i386: SSE4.2: fix pcmpXstrX instructions in "Equal each" mode,
Aurelien Jarno <=
- [Qemu-devel] [PATCH 01/10] target-i386: SSE4.1: fix pinsrb instruction, Aurelien Jarno, 2013/03/26
- [Qemu-devel] [PATCH 07/10] target-i386: SSE4.2: fix pcmpXstrX instructions in "Equal ordered" mode, Aurelien Jarno, 2013/03/26