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Merge pull request #3771 from phire/pr3771

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Remove instant ARAM DMA hack (Fixes Sarge's War)
This commit is contained in:
Scott Mansell 2016-09-07 19:09:39 +12:00 • committed by GitHub
commit d951f9e765
6 changed files with 1 additions and 109 deletions
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8
Source/Core/Core/PowerPC/Interpreter/Interpreter_LoadStore.cpp
View file

@ -336,14 +336,6 @@ void Interpreter::dcbi(UGeckoInstruction _inst)
// should use icbi consistently, but games aren't portable.)
u32 address = Helper_Get_EA_X(_inst);
JitInterface::InvalidateICache(address & ~0x1f, 32, false);
// The following detects a situation where the game is writing to the dcache at the address being
// DMA'd. As we do not
// have dcache emulation, invalid data is being DMA'd causing audio glitches. The following code
// detects this and
// enables the DMA to complete instantly before the invalid data is written. Resident Evil 2 & 3
// trigger this.
DSP::FlushInstantDMA(address);
}
void Interpreter::dcbst(UGeckoInstruction _inst)

17
Source/Core/Core/PowerPC/Jit64/Jit_LoadStore.cpp
View file

@ -315,23 +315,6 @@ void Jit64::dcbx(UGeckoInstruction inst)
SwitchToNearCode();
SetJumpTarget(c);
// dcbi
if (inst.SUBOP10 == 470)
{
// Flush DSP DMA if DMAState bit is set
TEST(16, M(&DSP::g_dspState), Imm16(1 << 9));
c = J_CC(CC_NZ, true);
SwitchToFarCode();
SetJumpTarget(c);
ABI_PushRegistersAndAdjustStack(registersInUse, 0);
SHL(32, R(addr), Imm8(5));
ABI_CallFunctionR(DSP::FlushInstantDMA, addr);
ABI_PopRegistersAndAdjustStack(registersInUse, 0);
c = J(true);
SwitchToNearCode();
SetJumpTarget(c);
}
gpr.UnlockAllX();
}

28
Source/Core/Core/PowerPC/JitArm64/JitArm64_LoadStore.cpp
View file

@ -733,34 +733,6 @@ void JitArm64::dcbx(UGeckoInstruction inst)
SetJumpTarget(bit_not_set);
SetJumpTarget(near);
// dcbi
if (inst.SUBOP10 == 470)
{
// Flush DSP DMA if DMAState bit is set
MOVI2R(EncodeRegTo64(WA), (u64)&DSP::g_dspState);
LDRH(INDEX_UNSIGNED, WA, EncodeRegTo64(WA), 0);
bit_not_set = TBZ(WA, 9);
far = B();
SwitchToFarCode();
SetJumpTarget(far);
ABI_PushRegisters(gprs_to_push);
m_float_emit.ABI_PushRegisters(fprs_to_push, X30);
LSL(W0, addr, 5);
MOVI2R(X1, (u64)DSP::FlushInstantDMA);
BLR(X1);
m_float_emit.ABI_PopRegisters(fprs_to_push, X30);
ABI_PopRegisters(gprs_to_push);
near = B();
SwitchToNearCode();
SetJumpTarget(near);
SetJumpTarget(bit_not_set);
}
gpr.Unlock(addr, value, W30);
}