diff options
| author | Shawn Hoffman <godisgovernment@gmail.com> | 2010-03-27 06:51:37 +0000 |
|---|---|---|
| committer | Shawn Hoffman <godisgovernment@gmail.com> | 2010-03-27 06:51:37 +0000 |
| commit | ef193f2e9566c09d71ecf2f29a44fbf09b9c8fc0 (patch) | |
| tree | e395ee96675bb694ea07c2a8536a0c0232b9cb7c /Source | |
| parent | 14d489dfee0e8138a4f882b88397780d51994b71 (diff) | |
fix divwux and divwx in interpreter, and fix divwux in jit64 - use the jit64 version as well.
git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@5243 8ced0084-cf51-0410-be5f-012b33b47a6e
Diffstat (limited to 'Source')
| -rw-r--r-- | Source/Core/Core/Src/PowerPC/Interpreter/Interpreter_Integer.cpp | 17 | ||||
| -rw-r--r-- | Source/Core/Core/Src/PowerPC/Jit64/Jit_Integer.cpp | 8 |
2 files changed, 15 insertions, 10 deletions
diff --git a/Source/Core/Core/Src/PowerPC/Interpreter/Interpreter_Integer.cpp b/Source/Core/Core/Src/PowerPC/Interpreter/Interpreter_Integer.cpp index 23b175d279..c27c2f32af 100644 --- a/Source/Core/Core/Src/PowerPC/Interpreter/Interpreter_Integer.cpp +++ b/Source/Core/Core/Src/PowerPC/Interpreter/Interpreter_Integer.cpp @@ -477,10 +477,13 @@ void divwx(UGeckoInstruction _inst) s32 b = m_GPR[_inst.RB]; if (b == 0 || ((u32)a == 0x80000000 && b == -1)) { - if (_inst.OE) - PanicAlert("OE: divwx"); + if (_inst.OE) // should set OV - //else PanicAlert("Div by zero", "divwx"); + PanicAlert("OE: divwx"); + if (((u32)a & 0x80000000) && b == 0) + m_GPR[_inst.RD] = -1; + else + m_GPR[_inst.RD] = 0; } else m_GPR[_inst.RD] = (u32)(a / b); @@ -494,12 +497,12 @@ void divwux(UGeckoInstruction _inst) u32 a = m_GPR[_inst.RA]; u32 b = m_GPR[_inst.RB]; - if (b == 0) // || (a == 0x80000000 && b == 0xFFFFFFFF)) + if (b == 0) { - if (_inst.OE) - PanicAlert("OE: divwux"); + if (_inst.OE) // should set OV - //else PanicAlert("Div by zero", "divwux"); + PanicAlert("OE: divwux"); + m_GPR[_inst.RD] = 0; } else { diff --git a/Source/Core/Core/Src/PowerPC/Jit64/Jit_Integer.cpp b/Source/Core/Core/Src/PowerPC/Jit64/Jit_Integer.cpp index da4380bf9a..62c9c1f3fe 100644 --- a/Source/Core/Core/Src/PowerPC/Jit64/Jit_Integer.cpp +++ b/Source/Core/Core/Src/PowerPC/Jit64/Jit_Integer.cpp @@ -634,7 +634,6 @@ void Jit64::divwux(UGeckoInstruction inst) { INSTRUCTION_START JITDISABLE(Integer) - Default(inst); return; int a = inst.RA, b = inst.RB, d = inst.RD; gpr.FlushLockX(EDX); gpr.Lock(a, b, d); @@ -648,10 +647,13 @@ void Jit64::divwux(UGeckoInstruction inst) gpr.KillImmediate(b); CMP(32, gpr.R(b), R(EDX)); // doesn't handle if OE is set, but int doesn't either... - FixupBranch branch = J_CC(CC_Z); + FixupBranch not_div_by_zero = J_CC(CC_NZ); + MOV(32, gpr.R(d), Imm32(0)); + FixupBranch end = J(); + SetJumpTarget(not_div_by_zero); DIV(32, gpr.R(b)); MOV(32, gpr.R(d), R(EAX)); - SetJumpTarget(branch); + SetJumpTarget(end); gpr.UnlockAll(); gpr.UnlockAllX(); if (inst.Rc) { |