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X86: Make sure immediate values are truncated properly.

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Register values will be "picked" which will assure they don't have junk beyond
the part we're using. Immediate values don't go through a similar process, so
we should truncate them explicitly.
This commit is contained in:
Gabe Black 2009-08-05 03:06:01 -07:00
parent ef3896d851
commit e2e0ae576a
1 changed files with 2 additions and 2 deletions
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4
src/arch/x86/isa/microops/regop.isa
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@ -525,7 +525,7 @@ let {{
uint64_t hiResult;
uint64_t psrc1_h = psrc1 / shifter;
uint64_t psrc1_l = psrc1 & mask(halfSize);
uint64_t psrc2_h = op2 / shifter;
uint64_t psrc2_h = (op2 / shifter) & mask(halfSize);
uint64_t psrc2_l = op2 & mask(halfSize);
hiResult = ((psrc1_l * psrc2_h + psrc1_h * psrc2_l +
((psrc1_l * psrc2_l) / shifter)) /shifter) +
@ -545,7 +545,7 @@ let {{
uint64_t shifter = (1ULL << halfSize);
uint64_t psrc1_h = psrc1 / shifter;
uint64_t psrc1_l = psrc1 & mask(halfSize);
uint64_t psrc2_h = op2 / shifter;
uint64_t psrc2_h = (op2 / shifter) & mask(halfSize);
uint64_t psrc2_l = op2 & mask(halfSize);
ProdHi = ((psrc1_l * psrc2_h + psrc1_h * psrc2_l +
((psrc1_l * psrc2_l) / shifter)) / shifter) +