Toolchain/binutils-gdb
1
0
Fork 0
forked from Imagelibrary/binutils-gdb
Code Pull Requests Activity

* armemu.c (MultiplyAdd64): Fix computation of flag N.

Browse Source
This commit is contained in:
Alexandre Oliva
2000-06-22 20:03:32 +00:00
parent 6d5be9157e
commit ee9a777240
2 changed files with 7 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
sim/arm/armemu.c
View File

@@ -3871,10 +3871,9 @@ MultiplyAdd64 (ARMul_State * state, ARMword instr, int msigned, int scc)
if (scc)
{
if ((RdHi == 0) && (RdLo == 0))
ARMul_NegZero (state, RdHi); /* zero value */
else
ARMul_NegZero (state, scc); /* non-zero value */
/* Ensure that both RdHi and RdLo are used to compute Z, but
don't let RdLo's sign bit make it to N. */
ARMul_NegZero (state, RdHi | (RdLo >> 16) | (RdLo & 0xFFFF));
}
return scount + 1; /* extra cycle for addition */