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JitArm64: Fix lwbrx/lhbrx with optimized MMIO access

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This commit is contained in:
JosJuice 2021-06-30 23:04:24 +02:00
parent 2409d30f5c
commit d3ef5d4ca4
3 changed files with 35 additions and 24 deletions
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27
Source/Core/Core/PowerPC/JitArm64/JitArm64_BackPatch.cpp
View File

@ -15,6 +15,7 @@
#include "Core/HW/Memmap.h"
#include "Core/PowerPC/JitArm64/Jit.h"
#include "Core/PowerPC/JitArm64/Jit_Util.h"
#include "Core/PowerPC/JitArmCommon/BackPatch.h"
#include "Core/PowerPC/MMU.h"
#include "Core/PowerPC/PowerPC.h"
@ -120,16 +121,7 @@ void JitArm64::EmitBackpatchRoutine(u32 flags, bool fastmem, bool do_farcode, AR
else if (flags & BackPatchInfo::FLAG_SIZE_8)
LDRB(RS, MEM_REG, addr);
if (!(flags & BackPatchInfo::FLAG_REVERSE))
{
if (flags & BackPatchInfo::FLAG_SIZE_32)
REV32(RS, RS);
else if (flags & BackPatchInfo::FLAG_SIZE_16)
REV16(RS, RS);
}
if (flags & BackPatchInfo::FLAG_EXTEND)
SXTH(RS, RS);
ByteswapAfterLoad(this, RS, RS, flags, true, false);
}
}
const u8* fastmem_end = GetCodePtr();
@ -235,20 +227,7 @@ void JitArm64::EmitBackpatchRoutine(u32 flags, bool fastmem, bool do_farcode, AR
BLR(ARM64Reg::X8);
if (!(flags & BackPatchInfo::FLAG_REVERSE))
{
MOV(RS, ARM64Reg::W0);
}
else
{
if (flags & BackPatchInfo::FLAG_SIZE_32)
REV32(RS, ARM64Reg::W0);
else if (flags & BackPatchInfo::FLAG_SIZE_16)
REV16(RS, ARM64Reg::W0);
}
if (flags & BackPatchInfo::FLAG_EXTEND)
SXTH(RS, RS);
ByteswapAfterLoad(this, RS, ARM64Reg::W0, flags, false, false);
}
m_float_emit.ABI_PopRegisters(fprs_to_push, ARM64Reg::X30);

29
Source/Core/Core/PowerPC/JitArm64/Jit_Util.cpp
View File

@ -192,6 +192,33 @@ private:
bool m_sign_extend;
};
void ByteswapAfterLoad(ARM64XEmitter* emit, ARM64Reg dst_reg, ARM64Reg src_reg, u32 flags,
bool is_reversed, bool is_extended)
{
if (is_reversed == !(flags & BackPatchInfo::FLAG_REVERSE))
{
if (flags & BackPatchInfo::FLAG_SIZE_32)
{
emit->REV32(dst_reg, src_reg);
src_reg = dst_reg;
}
else if (flags & BackPatchInfo::FLAG_SIZE_16)
{
emit->REV16(dst_reg, src_reg);
src_reg = dst_reg;
}
}
if (!is_extended && (flags & BackPatchInfo::FLAG_EXTEND))
{
emit->SXTH(dst_reg, src_reg);
src_reg = dst_reg;
}
if (dst_reg != src_reg)
emit->MOV(dst_reg, src_reg);
}
void MMIOLoadToReg(MMIO::Mapping* mmio, Arm64Gen::ARM64XEmitter* emit, BitSet32 gprs_in_use,
BitSet32 fprs_in_use, ARM64Reg dst_reg, u32 address, u32 flags)
{
@ -213,6 +240,8 @@ void MMIOLoadToReg(MMIO::Mapping* mmio, Arm64Gen::ARM64XEmitter* emit, BitSet32
flags & BackPatchInfo::FLAG_EXTEND);
mmio->GetHandlerForRead<u32>(address).Visit(gen);
}
ByteswapAfterLoad(emit, dst_reg, dst_reg, flags, false, true);
}
void MMIOWriteRegToAddr(MMIO::Mapping* mmio, Arm64Gen::ARM64XEmitter* emit, BitSet32 gprs_in_use,

3
Source/Core/Core/PowerPC/JitArm64/Jit_Util.h
View File

@ -9,6 +9,9 @@
#include "Core/HW/MMIO.h"
void ByteswapAfterLoad(Arm64Gen::ARM64XEmitter* emit, Arm64Gen::ARM64Reg dst_reg,
Arm64Gen::ARM64Reg src_reg, u32 flags, bool is_reversed, bool is_extended);
void MMIOLoadToReg(MMIO::Mapping* mmio, Arm64Gen::ARM64XEmitter* emit, BitSet32 gprs_in_use,
BitSet32 fprs_in_use, Arm64Gen::ARM64Reg dst_reg, u32 address, u32 flags);