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fix carry errors

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This commit is contained in:
Peter Tissen 2014-03-19 23:40:49 +01:00
parent acf955635f
commit 5a1ce28105
1 changed files with 2 additions and 2 deletions
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4
rpcs3/Emu/Cell/PPUInterpreter.h
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@ -2738,7 +2738,7 @@ private:
{ {
const u64 RA = CPU.GPR[ra]; const u64 RA = CPU.GPR[ra];
CPU.GPR[rd] = ~RA + CPU.XER.CA; CPU.GPR[rd] = ~RA + CPU.XER.CA;
CPU.XER.CA = (0x8000000000000000 & RA) && (0x8000000000000000 & CPU.GPR[rd]);//RA <= 0ull; CPU.XER.CA = (~RA + CPU.XER.CA > ~0x0) | ((RA == 0) & CPU.XER.CA);
if (oe) ConLog.Warning("subfzeo"); if (oe) ConLog.Warning("subfzeo");
if (rc) CPU.UpdateCR0<s64>(CPU.GPR[rd]); if (rc) CPU.UpdateCR0<s64>(CPU.GPR[rd]);
} }
@ -2771,7 +2771,7 @@ private:
{ {
const u64 RA = CPU.GPR[ra]; const u64 RA = CPU.GPR[ra];
CPU.GPR[rd] = ~RA + CPU.XER.CA + 0xFFFFFFFFFFFFFFFF; CPU.GPR[rd] = ~RA + CPU.XER.CA + 0xFFFFFFFFFFFFFFFF;
CPU.XER.CA = !(0x8000000000000000 & RA) && !(0x8000000000000000 & CPU.GPR[rd]); CPU.XER.CA = (~RA + CPU.XER.CA > ~0xFFFFFFFFFFFFFFFF) | ((RA == 0) & CPU.XER.CA);
if (oe) ConLog.Warning("subfmeo"); if (oe) ConLog.Warning("subfmeo");
if (rc) CPU.UpdateCR0<s64>(CPU.GPR[rd]); if (rc) CPU.UpdateCR0<s64>(CPU.GPR[rd]);
} }