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[Qemu-devel] [5417] Fix crc32w decoding, fix a constant width in blendvp
From: |
Andrzej Zaborowski |
Subject: |
[Qemu-devel] [5417] Fix crc32w decoding, fix a constant width in blendvpd. |
Date: |
Sat, 04 Oct 2008 11:33:52 +0000 |
Revision: 5417
http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=5417
Author: balrog
Date: 2008-10-04 11:33:52 +0000 (Sat, 04 Oct 2008)
Log Message:
-----------
Fix crc32w decoding, fix a constant width in blendvpd.
Forced the constant's width to long long so that it doesn't overflow,
problem spotted by C. W. Betts.
Modified Paths:
--------------
trunk/target-i386/ops_sse.h
trunk/target-i386/translate.c
Modified: trunk/target-i386/ops_sse.h
===================================================================
--- trunk/target-i386/ops_sse.h 2008-10-04 07:25:46 UTC (rev 5416)
+++ trunk/target-i386/ops_sse.h 2008-10-04 11:33:52 UTC (rev 5417)
@@ -1481,7 +1481,7 @@
/* SSE4.1 op helpers */
#define FBLENDVB(d, s, m) (m & 0x80) ? s : d
#define FBLENDVPS(d, s, m) (m & 0x80000000) ? s : d
-#define FBLENDVPD(d, s, m) (m & 0x8000000000000000) ? s : d
+#define FBLENDVPD(d, s, m) (m & 0x8000000000000000LL) ? s : d
SSE_HELPER_V(helper_pblendvb, B, 16, FBLENDVB)
SSE_HELPER_V(helper_blendvps, L, 4, FBLENDVPS)
SSE_HELPER_V(helper_blendvpd, Q, 2, FBLENDVPD)
Modified: trunk/target-i386/translate.c
===================================================================
--- trunk/target-i386/translate.c 2008-10-04 07:25:46 UTC (rev 5416)
+++ trunk/target-i386/translate.c 2008-10-04 11:33:52 UTC (rev 5417)
@@ -3568,17 +3568,16 @@
reg = ((modrm >> 3) & 7) | rex_r;
gen_op_mov_reg_T0(OT_LONG, reg);
break;
- case 0x038:
case 0x138:
+ if (s->prefix & PREFIX_REPNZ)
+ goto crc32;
+ case 0x038:
b = modrm;
modrm = ldub_code(s->pc++);
rm = modrm & 7;
reg = ((modrm >> 3) & 7) | rex_r;
mod = (modrm >> 6) & 3;
- if (s->prefix & PREFIX_REPNZ)
- goto crc32;
-
sse_op2 = sse_op_table6[b].op[b1];
if (!sse_op2)
goto illegal_op;
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Andrzej Zaborowski <=