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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.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5417 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
balrog 2008-10-04 11:33:52 +00:00
parent 9dc63a1efd
commit 000cacf6f9
2 changed files with 4 additions and 5 deletions
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2
target-i386/ops_sse.h
View File

@ -1481,7 +1481,7 @@ void glue(name, SUFFIX) (Reg *d, Reg *s, uint32_t imm)\
/* SSE4.1 op helpers */ /* SSE4.1 op helpers */
#define FBLENDVB(d, s, m) (m & 0x80) ? s : d #define FBLENDVB(d, s, m) (m & 0x80) ? s : d
#define FBLENDVPS(d, s, m) (m & 0x80000000) ? 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_pblendvb, B, 16, FBLENDVB)
SSE_HELPER_V(helper_blendvps, L, 4, FBLENDVPS) SSE_HELPER_V(helper_blendvps, L, 4, FBLENDVPS)
SSE_HELPER_V(helper_blendvpd, Q, 2, FBLENDVPD) SSE_HELPER_V(helper_blendvpd, Q, 2, FBLENDVPD)

7
target-i386/translate.c
View File

@ -3568,17 +3568,16 @@ static void gen_sse(DisasContext *s, int b, target_ulong pc_start, int rex_r)
reg = ((modrm >> 3) & 7) | rex_r; reg = ((modrm >> 3) & 7) | rex_r;
gen_op_mov_reg_T0(OT_LONG, reg); gen_op_mov_reg_T0(OT_LONG, reg);
break; break;
case 0x038:
case 0x138: case 0x138:
if (s->prefix & PREFIX_REPNZ)
goto crc32;
case 0x038:
b = modrm; b = modrm;
modrm = ldub_code(s->pc++); modrm = ldub_code(s->pc++);
rm = modrm & 7; rm = modrm & 7;
reg = ((modrm >> 3) & 7) | rex_r; reg = ((modrm >> 3) & 7) | rex_r;
mod = (modrm >> 6) & 3; mod = (modrm >> 6) & 3;
if (s->prefix & PREFIX_REPNZ)
goto crc32;
sse_op2 = sse_op_table6[b].op[b1]; sse_op2 = sse_op_table6[b].op[b1];
if (!sse_op2) if (!sse_op2)
goto illegal_op; goto illegal_op;