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| author | Gabe Black <gblack@eecs.umich.edu> | 2007-07-20 14:54:17 -0700 |
|---|---|---|
| committer | Gabe Black <gblack@eecs.umich.edu> | 2007-07-20 14:54:17 -0700 |
| commit | ee22bcd60940ed8cd23865e40ed8debc6c1f4288 (patch) | |
| tree | 30aa4029677abd7f8e1fb6f98c8154019110d60d | |
| parent | 0baae59c0902d17158fc592bf4dbd0e97fe6d33e (diff) | |
| download | gem5-ee22bcd60940ed8cd23865e40ed8debc6c1f4288.tar.xz | |
Fix function which calculates the carry flag.
--HG--
extra : convert_revision : aeb4f2d4c3936089421dbe80647f28ae36178283
| -rw-r--r-- | src/base/condcodes.hh | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/base/condcodes.hh b/src/base/condcodes.hh index 10109e4ad..efff12dc8 100644 --- a/src/base/condcodes.hh +++ b/src/base/condcodes.hh @@ -32,6 +32,7 @@ #define __BASE_CONDCODE_HH__ #include "base/bitfield.hh" +#include "base/trace.hh" /** * Calculate the carry flag from an addition. This should work even when @@ -41,7 +42,9 @@ inline bool findCarry(int width, uint64_t dest, uint64_t src1, uint64_t src2) { int shift = width - 1; - return (~(dest >> shift) + (src1 >> shift) + (src2 >> shift)) & 0x2; + return ((~(dest >> shift) & 1) + + ((src1 >> shift) & 1) + + ((src2 >> shift) & 1)) & 0x2; } /** |