changeset 209c3818a863 in /z/repo/m5
details: http://repo.m5sim.org/m5?cmd=changeset;node=209c3818a863
description:
X86: Make the check for negative operands for sign multiply more direct.
diffstat:
1 file changed, 2 insertions(+), 3 deletions(-)
src/arch/x86/isa/microops/regop.isa | 5 ++---
diffs (16 lines):
diff -r 418145f4d7a6 -r 209c3818a863 src/arch/x86/isa/microops/regop.isa
--- a/src/arch/x86/isa/microops/regop.isa Wed Aug 05 03:06:01 2009 -0700
+++ b/src/arch/x86/isa/microops/regop.isa Wed Aug 05 03:06:37 2009 -0700
@@ -530,10 +530,9 @@
hiResult = ((psrc1_l * psrc2_h + psrc1_h * psrc2_l +
((psrc1_l * psrc2_l) / shifter)) /shifter) +
psrc1_h * psrc2_h;
- if (spsrc1 < 0)
+ if (bits(psrc1, dataSize * 8 - 1))
hiResult -= op2;
- int64_t bigSop2 = sop2;
- if (bigSop2 < 0)
+ if (bits(op2, dataSize * 8 - 1))
hiResult -= psrc1;
ProdHi = hiResult;
'''
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