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CPU/Recompiler: Implement most instructions for AArch64

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This commit is contained in:
Connor McLaughlin 2019-12-04 01:50:59 +10:00
parent e518cbfffb
commit f49216f5f8
3 changed files with 233 additions and 378 deletions
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2
src/common/jit_code_buffer.cpp
View file

@ -73,7 +73,7 @@ void JitCodeBuffer::CommitFarCode(u32 length)
#if defined(Y_CPU_ARM) || defined(Y_CPU_AARCH64) #if defined(Y_CPU_ARM) || defined(Y_CPU_AARCH64)
// ARM instruction and data caches are not coherent, we need to flush after every block. // ARM instruction and data caches are not coherent, we need to flush after every block.
DoCacheFlush(m_free_code_ptr, length); DoCacheFlush(m_free_far_code_ptr, length);
#endif #endif
Assert(length <= (m_far_code_size - m_far_code_used)); Assert(length <= (m_far_code_size - m_far_code_used));

3
src/core/cpu_recompiler_code_generator.cpp
View file

@ -3,6 +3,9 @@
#include "cpu_disasm.h" #include "cpu_disasm.h"
Log_SetChannel(CPU::Recompiler); Log_SetChannel(CPU::Recompiler);
// TODO: Turn load+sext/zext into a single signed/unsigned load
// TODO: mulx/shlx/etc
namespace CPU::Recompiler { namespace CPU::Recompiler {
u32 CodeGenerator::CalculateRegisterOffset(Reg reg) u32 CodeGenerator::CalculateRegisterOffset(Reg reg)

606
src/core/cpu_recompiler_code_generator_aarch64.cpp
View file

@ -5,6 +5,13 @@ Log_SetChannel(CPU::Recompiler);
namespace a64 = vixl::aarch64; namespace a64 = vixl::aarch64;
// Really need push/pop register allocator state...
#define REG_ALLOC_HACK() do { \
Value temp_alloc_hack_0 = m_register_cache.AllocateScratch(RegSize_64); \
Value temp_alloc_hack_1 = m_register_cache.AllocateScratch(RegSize_64); \
Value temp_alloc_hack_2 = m_register_cache.AllocateScratch(RegSize_64); \
} while (0)
namespace CPU::Recompiler { namespace CPU::Recompiler {
constexpr HostReg RCPUPTR = 19; constexpr HostReg RCPUPTR = 19;
@ -195,6 +202,7 @@ void CodeGenerator::EmitExceptionExit()
void CodeGenerator::EmitExceptionExitOnBool(const Value& value) void CodeGenerator::EmitExceptionExitOnBool(const Value& value)
{ {
Assert(!value.IsConstant() && value.IsInHostRegister()); Assert(!value.IsConstant() && value.IsInHostRegister());
REG_ALLOC_HACK();
// TODO: This is... not great. // TODO: This is... not great.
Value temp = m_register_cache.AllocateScratch(RegSize_64); Value temp = m_register_cache.AllocateScratch(RegSize_64);
@ -226,8 +234,6 @@ void CodeGenerator::FinalizeBlock(CodeBlock::HostCodePointer* out_host_code, u32
void CodeGenerator::EmitSignExtend(HostReg to_reg, RegSize to_size, HostReg from_reg, RegSize from_size) void CodeGenerator::EmitSignExtend(HostReg to_reg, RegSize to_size, HostReg from_reg, RegSize from_size)
{ {
Panic("Not implemented");
#if 0
switch (to_size) switch (to_size)
{ {
case RegSize_16: case RegSize_16:
@ -235,7 +241,8 @@ void CodeGenerator::EmitSignExtend(HostReg to_reg, RegSize to_size, HostReg from
switch (from_size) switch (from_size)
{ {
case RegSize_8: case RegSize_8:
m_emit->movsx(GetHostReg16(to_reg), GetHostReg8(from_reg)); m_emit->sxtb(GetHostReg16(to_reg), GetHostReg8(from_reg));
m_emit->and_(GetHostReg16(to_reg), GetHostReg16(to_reg), 0xFFFF);
return; return;
} }
} }
@ -246,24 +253,21 @@ void CodeGenerator::EmitSignExtend(HostReg to_reg, RegSize to_size, HostReg from
switch (from_size) switch (from_size)
{ {
case RegSize_8: case RegSize_8:
m_emit->movsx(GetHostReg32(to_reg), GetHostReg8(from_reg)); m_emit->sxtb(GetHostReg32(to_reg), GetHostReg8(from_reg));
return; return;
case RegSize_16: case RegSize_16:
m_emit->movsx(GetHostReg32(to_reg), GetHostReg16(from_reg)); m_emit->sxth(GetHostReg32(to_reg), GetHostReg16(from_reg));
return; return;
} }
} }
break; break;
} }
#endif
Panic("Unknown sign-extend combination"); Panic("Unknown sign-extend combination");
} }
void CodeGenerator::EmitZeroExtend(HostReg to_reg, RegSize to_size, HostReg from_reg, RegSize from_size) void CodeGenerator::EmitZeroExtend(HostReg to_reg, RegSize to_size, HostReg from_reg, RegSize from_size)
{ {
Panic("Not implemented");
#if 0
switch (to_size) switch (to_size)
{ {
case RegSize_16: case RegSize_16:
@ -271,7 +275,7 @@ void CodeGenerator::EmitZeroExtend(HostReg to_reg, RegSize to_size, HostReg from
switch (from_size) switch (from_size)
{ {
case RegSize_8: case RegSize_8:
m_emit->movzx(GetHostReg16(to_reg), GetHostReg8(from_reg)); m_emit->and_(GetHostReg16(to_reg), GetHostReg8(from_reg), 0xFF);
return; return;
} }
} }
@ -282,16 +286,15 @@ void CodeGenerator::EmitZeroExtend(HostReg to_reg, RegSize to_size, HostReg from
switch (from_size) switch (from_size)
{ {
case RegSize_8: case RegSize_8:
m_emit->movzx(GetHostReg32(to_reg), GetHostReg8(from_reg)); m_emit->and_(GetHostReg32(to_reg), GetHostReg8(from_reg), 0xFF);
return; return;
case RegSize_16: case RegSize_16:
m_emit->movzx(GetHostReg32(to_reg), GetHostReg16(from_reg)); m_emit->and_(GetHostReg32(to_reg), GetHostReg16(from_reg), 0xFFFF);
return; return;
} }
} }
break; break;
} }
#endif
Panic("Unknown sign-extend combination"); Panic("Unknown sign-extend combination");
} }
@ -331,63 +334,57 @@ void CodeGenerator::EmitCopyValue(HostReg to_reg, const Value& value)
void CodeGenerator::EmitAdd(HostReg to_reg, const Value& value, bool set_flags) void CodeGenerator::EmitAdd(HostReg to_reg, const Value& value, bool set_flags)
{ {
DebugAssert(value.IsConstant() || value.IsInHostRegister()); Assert(value.IsConstant() || value.IsInHostRegister());
Panic("Not implemented");
#if 0 // if it's in a host register already, this is easy
if (value.IsInHostRegister())
switch (value.size)
{ {
case RegSize_8: if (value.size < RegSize_64)
{ {
if (value.IsConstant()) if (set_flags)
m_emit->add(GetHostReg8(to_reg), SignExtend32(Truncate8(value.constant_value))); m_emit->adds(GetHostReg32(to_reg), GetHostReg32(to_reg), GetHostReg32(value.host_reg));
else else
m_emit->add(GetHostReg8(to_reg), GetHostReg8(value.host_reg)); m_emit->add(GetHostReg32(to_reg), GetHostReg32(to_reg), GetHostReg32(value.host_reg));
}
else
{
if (set_flags)
m_emit->adds(GetHostReg64(to_reg), GetHostReg64(to_reg), GetHostReg64(value.host_reg));
else
m_emit->add(GetHostReg64(to_reg), GetHostReg64(to_reg), GetHostReg64(value.host_reg));
} }
break;
case RegSize_16: return;
{
if (value.IsConstant())
m_emit->add(GetHostReg16(to_reg), SignExtend32(Truncate16(value.constant_value)));
else
m_emit->add(GetHostReg16(to_reg), GetHostReg16(value.host_reg));
}
break;
case RegSize_32:
{
if (value.IsConstant())
m_emit->add(GetHostReg32(to_reg), Truncate32(value.constant_value));
else
m_emit->add(GetHostReg32(to_reg), GetHostReg32(value.host_reg));
}
break;
case RegSize_64:
{
if (value.IsConstant())
{
if (!Xbyak::inner::IsInInt32(value.constant_value))
{
Value temp = m_register_cache.AllocateScratch(RegSize_64);
m_emit->mov(GetHostReg64(temp.host_reg), value.constant_value);
m_emit->add(GetHostReg64(to_reg), GetHostReg64(temp.host_reg));
}
else
{
m_emit->add(GetHostReg64(to_reg), Truncate32(value.constant_value));
}
}
else
{
m_emit->add(GetHostReg64(to_reg), GetHostReg64(value.host_reg));
}
}
break;
} }
#endif
// do we need temporary storage for the constant, if it won't fit in an immediate?
if (a64::Assembler::IsImmAddSub(value.constant_value))
{
if (value.size < RegSize_64)
{
if (set_flags)
m_emit->adds(GetHostReg32(to_reg), GetHostReg32(to_reg), s64(value.constant_value));
else
m_emit->add(GetHostReg32(to_reg), GetHostReg32(to_reg), s64(value.constant_value));
}
else
{
if (set_flags)
m_emit->adds(GetHostReg64(to_reg), GetHostReg64(to_reg), s64(value.constant_value));
else
m_emit->add(GetHostReg64(to_reg), GetHostReg64(to_reg), s64(value.constant_value));
}
return;
}
// need a temporary
Value temp_value = m_register_cache.AllocateScratch(value.size);
if (value.size < RegSize_64)
m_emit->Mov(GetHostReg32(temp_value.host_reg), s64(value.constant_value));
else
m_emit->Mov(GetHostReg64(temp_value.host_reg), s64(value.constant_value));
EmitAdd(to_reg, temp_value, set_flags);
} }
void CodeGenerator::EmitSub(HostReg to_reg, const Value& value, bool set_flags) void CodeGenerator::EmitSub(HostReg to_reg, const Value& value, bool set_flags)
@ -676,356 +673,207 @@ void CodeGenerator::EmitDec(HostReg to_reg, RegSize size)
void CodeGenerator::EmitShl(HostReg to_reg, RegSize size, const Value& amount_value) void CodeGenerator::EmitShl(HostReg to_reg, RegSize size, const Value& amount_value)
{ {
Panic("Not implemented");
#if 0
DebugAssert(amount_value.IsConstant() || amount_value.IsInHostRegister());
// We have to use CL for the shift amount :(
const bool save_cl = (!amount_value.IsConstant() && m_register_cache.IsHostRegInUse(Xbyak::Operand::RCX) &&
(!amount_value.IsInHostRegister() || amount_value.host_reg != Xbyak::Operand::RCX));
if (save_cl)
m_emit->push(m_emit->rcx);
if (!amount_value.IsConstant())
m_emit->mov(m_emit->cl, GetHostReg8(amount_value.host_reg));
switch (size) switch (size)
{ {
case RegSize_8: case RegSize_8:
{
if (amount_value.IsConstant())
m_emit->shl(GetHostReg8(to_reg), Truncate8(amount_value.constant_value));
else
m_emit->shl(GetHostReg8(to_reg), m_emit->cl);
}
break;
case RegSize_16: case RegSize_16:
{
if (amount_value.IsConstant())
m_emit->shl(GetHostReg16(to_reg), Truncate8(amount_value.constant_value));
else
m_emit->shl(GetHostReg16(to_reg), m_emit->cl);
}
break;
case RegSize_32: case RegSize_32:
{ {
if (amount_value.IsConstant()) if (amount_value.IsConstant())
m_emit->shl(GetHostReg32(to_reg), Truncate32(amount_value.constant_value)); m_emit->lsl(GetHostReg32(to_reg), GetHostReg32(to_reg), amount_value.constant_value & 0x1F);
else else
m_emit->shl(GetHostReg32(to_reg), m_emit->cl); m_emit->lslv(GetHostReg32(to_reg), GetHostReg32(to_reg), GetHostReg32(amount_value));
if (size == RegSize_8)
m_emit->and_(GetHostReg32(to_reg), GetHostReg32(to_reg), 0xFF);
else if (size == RegSize_16)
m_emit->and_(GetHostReg32(to_reg), GetHostReg32(to_reg), 0xFFFF);
} }
break; break;
case RegSize_64: case RegSize_64:
{ {
if (amount_value.IsConstant()) if (amount_value.IsConstant())
m_emit->shl(GetHostReg64(to_reg), Truncate32(amount_value.constant_value)); m_emit->lsl(GetHostReg64(to_reg), GetHostReg64(to_reg), amount_value.constant_value & 0x3F);
else else
m_emit->shl(GetHostReg64(to_reg), m_emit->cl); m_emit->lslv(GetHostReg64(to_reg), GetHostReg64(to_reg), GetHostReg64(amount_value));
} }
break; break;
} }
if (save_cl)
m_emit->pop(m_emit->rcx);
#endif
} }
void CodeGenerator::EmitShr(HostReg to_reg, RegSize size, const Value& amount_value) void CodeGenerator::EmitShr(HostReg to_reg, RegSize size, const Value& amount_value)
{ {
Panic("Not implemented");
#if 0
DebugAssert(amount_value.IsConstant() || amount_value.IsInHostRegister());
// We have to use CL for the shift amount :(
const bool save_cl = (!amount_value.IsConstant() && m_register_cache.IsHostRegInUse(Xbyak::Operand::RCX) &&
(!amount_value.IsInHostRegister() || amount_value.host_reg != Xbyak::Operand::RCX));
if (save_cl)
m_emit->push(m_emit->rcx);
if (!amount_value.IsConstant())
m_emit->mov(m_emit->cl, GetHostReg8(amount_value.host_reg));
switch (size) switch (size)
{ {
case RegSize_8: case RegSize_8:
{
if (amount_value.IsConstant())
m_emit->shr(GetHostReg8(to_reg), Truncate8(amount_value.constant_value));
else
m_emit->shr(GetHostReg8(to_reg), m_emit->cl);
}
break;
case RegSize_16: case RegSize_16:
{
if (amount_value.IsConstant())
m_emit->shr(GetHostReg16(to_reg), Truncate8(amount_value.constant_value));
else
m_emit->shr(GetHostReg16(to_reg), m_emit->cl);
}
break;
case RegSize_32: case RegSize_32:
{ {
if (amount_value.IsConstant()) if (amount_value.IsConstant())
m_emit->shr(GetHostReg32(to_reg), Truncate32(amount_value.constant_value)); m_emit->lsr(GetHostReg32(to_reg), GetHostReg32(to_reg), amount_value.constant_value & 0x1F);
else else
m_emit->shr(GetHostReg32(to_reg), m_emit->cl); m_emit->lsrv(GetHostReg32(to_reg), GetHostReg32(to_reg), GetHostReg32(amount_value));
if (size == RegSize_8)
m_emit->and_(GetHostReg32(to_reg), GetHostReg32(to_reg), 0xFF);
else if (size == RegSize_16)
m_emit->and_(GetHostReg32(to_reg), GetHostReg32(to_reg), 0xFFFF);
} }
break; break;
case RegSize_64: case RegSize_64:
{ {
if (amount_value.IsConstant()) if (amount_value.IsConstant())
m_emit->shr(GetHostReg64(to_reg), Truncate32(amount_value.constant_value)); m_emit->lsr(GetHostReg64(to_reg), GetHostReg64(to_reg), amount_value.constant_value & 0x3F);
else else
m_emit->shr(GetHostReg64(to_reg), m_emit->cl); m_emit->lsrv(GetHostReg64(to_reg), GetHostReg64(to_reg), GetHostReg64(amount_value));
} }
break; break;
} }
if (save_cl)
m_emit->pop(m_emit->rcx);
#endif
} }
void CodeGenerator::EmitSar(HostReg to_reg, RegSize size, const Value& amount_value) void CodeGenerator::EmitSar(HostReg to_reg, RegSize size, const Value& amount_value)
{ {
Panic("Not implemented");
#if 0
DebugAssert(amount_value.IsConstant() || amount_value.IsInHostRegister());
// We have to use CL for the shift amount :(
const bool save_cl = (!amount_value.IsConstant() && m_register_cache.IsHostRegInUse(Xbyak::Operand::RCX) &&
(!amount_value.IsInHostRegister() || amount_value.host_reg != Xbyak::Operand::RCX));
if (save_cl)
m_emit->push(m_emit->rcx);
if (!amount_value.IsConstant())
m_emit->mov(m_emit->cl, GetHostReg8(amount_value.host_reg));
switch (size) switch (size)
{ {
case RegSize_8: case RegSize_8:
{
if (amount_value.IsConstant())
m_emit->sar(GetHostReg8(to_reg), Truncate8(amount_value.constant_value));
else
m_emit->sar(GetHostReg8(to_reg), m_emit->cl);
}
break;
case RegSize_16: case RegSize_16:
{
if (amount_value.IsConstant())
m_emit->sar(GetHostReg16(to_reg), Truncate8(amount_value.constant_value));
else
m_emit->sar(GetHostReg16(to_reg), m_emit->cl);
}
break;
case RegSize_32: case RegSize_32:
{ {
if (amount_value.IsConstant()) if (amount_value.IsConstant())
m_emit->sar(GetHostReg32(to_reg), Truncate32(amount_value.constant_value)); m_emit->asr(GetHostReg32(to_reg), GetHostReg32(to_reg), amount_value.constant_value & 0x1F);
else else
m_emit->sar(GetHostReg32(to_reg), m_emit->cl); m_emit->asrv(GetHostReg32(to_reg), GetHostReg32(to_reg), GetHostReg32(amount_value));
if (size == RegSize_8)
m_emit->and_(GetHostReg32(to_reg), GetHostReg32(to_reg), 0xFF);
else if (size == RegSize_16)
m_emit->and_(GetHostReg32(to_reg), GetHostReg32(to_reg), 0xFFFF);
} }
break; break;
case RegSize_64: case RegSize_64:
{ {
if (amount_value.IsConstant()) if (amount_value.IsConstant())
m_emit->sar(GetHostReg64(to_reg), Truncate32(amount_value.constant_value)); m_emit->asr(GetHostReg64(to_reg), GetHostReg64(to_reg), amount_value.constant_value & 0x3F);
else else
m_emit->sar(GetHostReg64(to_reg), m_emit->cl); m_emit->asrv(GetHostReg64(to_reg), GetHostReg64(to_reg), GetHostReg64(amount_value));
} }
break; break;
} }
}
if (save_cl) static bool CanFitInBitwiseImmediate(const Value& value)
m_emit->pop(m_emit->rcx); {
#endif const unsigned reg_size = (value.size < RegSize_64) ? 32 : 64;
unsigned n, imm_s, imm_r;
return a64::Assembler::IsImmLogical(s64(value.constant_value), reg_size, &n, &imm_s, &imm_r);
} }
void CodeGenerator::EmitAnd(HostReg to_reg, const Value& value) void CodeGenerator::EmitAnd(HostReg to_reg, const Value& value)
{ {
Panic("Not implemented"); Assert(value.IsConstant() || value.IsInHostRegister());
#if 0
DebugAssert(value.IsConstant() || value.IsInHostRegister()); // if it's in a host register already, this is easy
switch (value.size) if (value.IsInHostRegister())
{ {
case RegSize_8: if (value.size < RegSize_64)
{ m_emit->and_(GetHostReg32(to_reg), GetHostReg32(to_reg), GetHostReg32(value.host_reg));
if (value.IsConstant()) else
m_emit->and_(GetHostReg8(to_reg), Truncate32(value.constant_value & UINT32_C(0xFF))); m_emit->and_(GetHostReg64(to_reg), GetHostReg64(to_reg), GetHostReg64(value.host_reg));
else
m_emit->and_(GetHostReg8(to_reg), GetHostReg8(value));
}
break;
case RegSize_16: return;
{
if (value.IsConstant())
m_emit->and_(GetHostReg16(to_reg), Truncate32(value.constant_value & UINT32_C(0xFFFF)));
else
m_emit->and_(GetHostReg16(to_reg), GetHostReg16(value));
}
break;
case RegSize_32:
{
if (value.IsConstant())
m_emit->and_(GetHostReg32(to_reg), Truncate32(value.constant_value));
else
m_emit->and_(GetHostReg32(to_reg), GetHostReg32(value));
}
break;
case RegSize_64:
{
if (value.IsConstant())
{
if (!Xbyak::inner::IsInInt32(value.constant_value))
{
Value temp = m_register_cache.AllocateScratch(RegSize_64);
m_emit->mov(GetHostReg64(temp), value.constant_value);
m_emit->and_(GetHostReg64(to_reg), GetHostReg64(temp));
}
else
{
m_emit->and_(GetHostReg64(to_reg), Truncate32(value.constant_value));
}
}
else
{
m_emit->and_(GetHostReg64(to_reg), GetHostReg64(value));
}
}
break;
} }
#endif
// do we need temporary storage for the constant, if it won't fit in an immediate?
if (CanFitInBitwiseImmediate(value))
{
if (value.size < RegSize_64)
m_emit->and_(GetHostReg32(to_reg), GetHostReg32(to_reg), s64(value.constant_value));
else
m_emit->and_(GetHostReg64(to_reg), GetHostReg64(to_reg), s64(value.constant_value));
return;
}
// need a temporary
Value temp_value = m_register_cache.AllocateScratch(value.size);
if (value.size < RegSize_64)
m_emit->Mov(GetHostReg32(temp_value.host_reg), s64(value.constant_value));
else
m_emit->Mov(GetHostReg64(temp_value.host_reg), s64(value.constant_value));
EmitAnd(to_reg, temp_value);
} }
void CodeGenerator::EmitOr(HostReg to_reg, const Value& value) void CodeGenerator::EmitOr(HostReg to_reg, const Value& value)
{ {
Panic("Not implemented"); Assert(value.IsConstant() || value.IsInHostRegister());
#if 0
DebugAssert(value.IsConstant() || value.IsInHostRegister()); // if it's in a host register already, this is easy
switch (value.size) if (value.IsInHostRegister())
{ {
case RegSize_8: if (value.size < RegSize_64)
{ m_emit->orr(GetHostReg32(to_reg), GetHostReg32(to_reg), GetHostReg32(value.host_reg));
if (value.IsConstant()) else
m_emit->or_(GetHostReg8(to_reg), Truncate32(value.constant_value & UINT32_C(0xFF))); m_emit->orr(GetHostReg64(to_reg), GetHostReg64(to_reg), GetHostReg64(value.host_reg));
else
m_emit->or_(GetHostReg8(to_reg), GetHostReg8(value));
}
break;
case RegSize_16: return;
{
if (value.IsConstant())
m_emit->or_(GetHostReg16(to_reg), Truncate32(value.constant_value & UINT32_C(0xFFFF)));
else
m_emit->or_(GetHostReg16(to_reg), GetHostReg16(value));
}
break;
case RegSize_32:
{
if (value.IsConstant())
m_emit->or_(GetHostReg32(to_reg), Truncate32(value.constant_value));
else
m_emit->or_(GetHostReg32(to_reg), GetHostReg32(value));
}
break;
case RegSize_64:
{
if (value.IsConstant())
{
if (!Xbyak::inner::IsInInt32(value.constant_value))
{
Value temp = m_register_cache.AllocateScratch(RegSize_64);
m_emit->mov(GetHostReg64(temp), value.constant_value);
m_emit->or_(GetHostReg64(to_reg), GetHostReg64(temp));
}
else
{
m_emit->or_(GetHostReg64(to_reg), Truncate32(value.constant_value));
}
}
else
{
m_emit->or_(GetHostReg64(to_reg), GetHostReg64(value));
}
}
break;
} }
#endif
// do we need temporary storage for the constant, if it won't fit in an immediate?
if (CanFitInBitwiseImmediate(value))
{
if (value.size < RegSize_64)
m_emit->orr(GetHostReg32(to_reg), GetHostReg32(to_reg), s64(value.constant_value));
else
m_emit->orr(GetHostReg64(to_reg), GetHostReg64(to_reg), s64(value.constant_value));
return;
}
// need a temporary
Value temp_value = m_register_cache.AllocateScratch(value.size);
if (value.size < RegSize_64)
m_emit->Mov(GetHostReg32(temp_value.host_reg), s64(value.constant_value));
else
m_emit->Mov(GetHostReg64(temp_value.host_reg), s64(value.constant_value));
EmitOr(to_reg, temp_value);
} }
void CodeGenerator::EmitXor(HostReg to_reg, const Value& value) void CodeGenerator::EmitXor(HostReg to_reg, const Value& value)
{ {
Panic("Not implemented"); Assert(value.IsConstant() || value.IsInHostRegister());
#if 0
DebugAssert(value.IsConstant() || value.IsInHostRegister()); // if it's in a host register already, this is easy
switch (value.size) if (value.IsInHostRegister())
{ {
case RegSize_8: if (value.size < RegSize_64)
{ m_emit->eor(GetHostReg32(to_reg), GetHostReg32(to_reg), GetHostReg32(value.host_reg));
if (value.IsConstant()) else
m_emit->xor_(GetHostReg8(to_reg), Truncate32(value.constant_value & UINT32_C(0xFF))); m_emit->eor(GetHostReg64(to_reg), GetHostReg64(to_reg), GetHostReg64(value.host_reg));
else
m_emit->xor_(GetHostReg8(to_reg), GetHostReg8(value));
}
break;
case RegSize_16: return;
{
if (value.IsConstant())
m_emit->xor_(GetHostReg16(to_reg), Truncate32(value.constant_value & UINT32_C(0xFFFF)));
else
m_emit->xor_(GetHostReg16(to_reg), GetHostReg16(value));
}
break;
case RegSize_32:
{
if (value.IsConstant())
m_emit->xor_(GetHostReg32(to_reg), Truncate32(value.constant_value));
else
m_emit->xor_(GetHostReg32(to_reg), GetHostReg32(value));
}
break;
case RegSize_64:
{
if (value.IsConstant())
{
if (!Xbyak::inner::IsInInt32(value.constant_value))
{
Value temp = m_register_cache.AllocateScratch(RegSize_64);
m_emit->mov(GetHostReg64(temp), value.constant_value);
m_emit->xor_(GetHostReg64(to_reg), GetHostReg64(temp));
}
else
{
m_emit->xor_(GetHostReg64(to_reg), Truncate32(value.constant_value));
}
}
else
{
m_emit->xor_(GetHostReg64(to_reg), GetHostReg64(value));
}
}
break;
} }
#endif
// do we need temporary storage for the constant, if it won't fit in an immediate?
if (CanFitInBitwiseImmediate(value))
{
if (value.size < RegSize_64)
m_emit->eor(GetHostReg32(to_reg), GetHostReg32(to_reg), s64(value.constant_value));
else
m_emit->eor(GetHostReg64(to_reg), GetHostReg64(to_reg), s64(value.constant_value));
return;
}
// need a temporary
Value temp_value = m_register_cache.AllocateScratch(value.size);
if (value.size < RegSize_64)
m_emit->Mov(GetHostReg32(temp_value.host_reg), s64(value.constant_value));
else
m_emit->Mov(GetHostReg64(temp_value.host_reg), s64(value.constant_value));
EmitXor(to_reg, temp_value);
} }
void CodeGenerator::EmitTest(HostReg to_reg, const Value& value) void CodeGenerator::EmitTest(HostReg to_reg, const Value& value)
@ -1089,30 +937,29 @@ void CodeGenerator::EmitTest(HostReg to_reg, const Value& value)
void CodeGenerator::EmitNot(HostReg to_reg, RegSize size) void CodeGenerator::EmitNot(HostReg to_reg, RegSize size)
{ {
Panic("Not implemented");
#if 0
switch (size) switch (size)
{ {
case RegSize_8: case RegSize_8:
m_emit->not_(GetHostReg8(to_reg)); m_emit->mvn(GetHostReg8(to_reg), GetHostReg8(to_reg));
m_emit->and_(GetHostReg8(to_reg), GetHostReg8(to_reg), 0xFF);
break; break;
case RegSize_16: case RegSize_16:
m_emit->not_(GetHostReg16(to_reg)); m_emit->mvn(GetHostReg16(to_reg), GetHostReg16(to_reg));
m_emit->and_(GetHostReg16(to_reg), GetHostReg16(to_reg), 0xFFFF);
break; break;
case RegSize_32: case RegSize_32:
m_emit->not_(GetHostReg32(to_reg)); m_emit->mvn(GetHostReg32(to_reg), GetHostReg32(to_reg));
break; break;
case RegSize_64: case RegSize_64:
m_emit->not_(GetHostReg64(to_reg)); m_emit->mvn(GetHostReg64(to_reg), GetHostReg64(to_reg));
break; break;
default: default:
break; break;
} }
#endif
} }
void CodeGenerator::EmitSetConditionResult(HostReg to_reg, RegSize to_size, Condition condition) void CodeGenerator::EmitSetConditionResult(HostReg to_reg, RegSize to_size, Condition condition)
@ -1481,8 +1328,6 @@ void CodeGenerator::EmitAddCPUStructField(u32 offset, const Value& value)
Value CodeGenerator::EmitLoadGuestMemory(const Value& address, RegSize size) Value CodeGenerator::EmitLoadGuestMemory(const Value& address, RegSize size)
{ {
Panic("Not implemented");
#if 0
// We need to use the full 64 bits here since we test the sign bit result. // We need to use the full 64 bits here since we test the sign bit result.
Value result = m_register_cache.AllocateScratch(RegSize_64); Value result = m_register_cache.AllocateScratch(RegSize_64);
@ -1506,8 +1351,13 @@ Value CodeGenerator::EmitLoadGuestMemory(const Value& address, RegSize size)
break; break;
} }
m_emit->test(GetHostReg64(result.host_reg), GetHostReg64(result.host_reg)); REG_ALLOC_HACK();
m_emit->js(GetCurrentFarCodePointer());
a64::Label load_okay;
m_emit->Tbz(GetHostReg64(result.host_reg), 63, &load_okay);
m_emit->Mov(GetHostReg64(result.host_reg), reinterpret_cast<intptr_t>(GetCurrentFarCodePointer()));
m_emit->Br(GetHostReg64(result.host_reg));
m_emit->Bind(&load_okay);
// load exception path // load exception path
SwitchToFarCode(); SwitchToFarCode();
@ -1535,13 +1385,10 @@ Value CodeGenerator::EmitLoadGuestMemory(const Value& address, RegSize size)
} }
return result; return result;
#endif
} }
void CodeGenerator::EmitStoreGuestMemory(const Value& address, const Value& value) void CodeGenerator::EmitStoreGuestMemory(const Value& address, const Value& value)
{ {
Panic("Not implemented");
#if 0
Value result = m_register_cache.AllocateScratch(RegSize_8); Value result = m_register_cache.AllocateScratch(RegSize_8);
switch (value.size) switch (value.size)
@ -1563,16 +1410,18 @@ void CodeGenerator::EmitStoreGuestMemory(const Value& address, const Value& valu
break; break;
} }
Xbyak::Label store_okay; REG_ALLOC_HACK();
m_emit->test(GetHostReg8(result), GetHostReg8(result)); a64::Label store_okay;
m_emit->jz(GetCurrentFarCodePointer()); m_emit->Cbnz(GetHostReg64(result.host_reg), &store_okay);
m_emit->Mov(GetHostReg64(result.host_reg), reinterpret_cast<intptr_t>(GetCurrentFarCodePointer()));
m_emit->Br(GetHostReg64(result.host_reg));
m_emit->Bind(&store_okay);
// store exception path // store exception path
SwitchToFarCode(); SwitchToFarCode();
EmitExceptionExit(); EmitExceptionExit();
SwitchToNearCode(); SwitchToNearCode();
#endif
} }
void CodeGenerator::EmitFlushInterpreterLoadDelay() void CodeGenerator::EmitFlushInterpreterLoadDelay()
@ -1630,86 +1479,85 @@ void CodeGenerator::EmitMoveNextInterpreterLoadDelay()
void CodeGenerator::EmitCancelInterpreterLoadDelayForReg(Reg reg) void CodeGenerator::EmitCancelInterpreterLoadDelayForReg(Reg reg)
{ {
Panic("Not implemented");
#if 0
if (!m_load_delay_dirty) if (!m_load_delay_dirty)
return; return;
auto load_delay_reg = m_emit->byte[GetCPUPtrReg() + offsetof(Core, m_load_delay_reg)]; const a64::MemOperand load_delay_reg(GetCPUPtrReg(), offsetof(Core, m_load_delay_reg));
Value temp = m_register_cache.AllocateScratch(RegSize_8);
Xbyak::Label skip_cancel; a64::Label skip_cancel;
// if load_delay_reg != reg goto skip_cancel // if load_delay_reg != reg goto skip_cancel
m_emit->cmp(load_delay_reg, static_cast<u8>(reg)); m_emit->Ldrb(GetHostReg8(temp), load_delay_reg);
m_emit->jne(skip_cancel); m_emit->Cmp(GetHostReg8(temp), static_cast<u8>(reg));
m_emit->B(a64::ne, &skip_cancel);
// load_delay_reg = Reg::count // load_delay_reg = Reg::count
m_emit->mov(load_delay_reg, static_cast<u8>(Reg::count)); m_emit->Mov(GetHostReg8(temp), static_cast<u8>(Reg::count));
m_emit->Strb(GetHostReg8(temp), load_delay_reg);
m_emit->L(skip_cancel); m_emit->Bind(&skip_cancel);
#endif
} }
#if 0
template<typename T> template<typename T>
static void EmitConditionalJump(Condition condition, bool invert, Xbyak::CodeGenerator* emit, const T& label) static void EmitConditionalJump(Condition condition, bool invert, a64::MacroAssembler* emit, const T& label)
{ {
switch (condition) switch (condition)
{ {
case Condition::Always: case Condition::Always:
emit->jmp(label); emit->b(label);
break; break;
case Condition::NotEqual: case Condition::NotEqual:
invert ? emit->je(label) : emit->jne(label); invert ? emit->b(label, a64::eq) : emit->b(label, a64::ne);
break; break;
case Condition::Equal: case Condition::Equal:
invert ? emit->jne(label) : emit->je(label); invert ? emit->b(label, a64::ne) : emit->b(label, a64::eq);
break; break;
case Condition::Overflow: case Condition::Overflow:
invert ? emit->jno(label) : emit->jo(label); invert ? emit->b(label, a64::vc) : emit->b(label, a64::vs);
break; break;
case Condition::Greater: case Condition::Greater:
invert ? emit->jng(label) : emit->jg(label); invert ? emit->b(label, a64::ls) : emit->b(label, a64::hi);
break; break;
case Condition::GreaterEqual: case Condition::GreaterEqual:
invert ? emit->jnge(label) : emit->jge(label); invert ? emit->b(label, a64::cc) : emit->b(label, a64::cs);
break; break;
case Condition::Less: case Condition::Less:
invert ? emit->jnl(label) : emit->jl(label); invert ? emit->b(label, a64::cs) : emit->b(label, a64::cc);
break; break;
case Condition::LessEqual: case Condition::LessEqual:
invert ? emit->jnle(label) : emit->jle(label); invert ? emit->b(label, a64::hi) : emit->b(label, a64::ls);
break; break;
case Condition::Negative: case Condition::Negative:
invert ? emit->jns(label) : emit->js(label); invert ? emit->b(label, a64::pl) : emit->b(label, a64::mi);
break; break;
case Condition::PositiveOrZero: case Condition::PositiveOrZero:
invert ? emit->js(label) : emit->jns(label); invert ? emit->b(label, a64::mi) : emit->b(label, a64::pl);
break; break;
case Condition::Above: case Condition::Above:
invert ? emit->jna(label) : emit->ja(label); invert ? emit->b(label, a64::le) : emit->b(label, a64::gt);
break; break;
case Condition::AboveEqual: case Condition::AboveEqual:
invert ? emit->jnae(label) : emit->jae(label); invert ? emit->b(label, a64::lt) : emit->b(label, a64::ge);
break; break;
case Condition::Below: case Condition::Below:
invert ? emit->jnb(label) : emit->jb(label); invert ? emit->b(label, a64::ge) : emit->b(label, a64::lt);
break; break;
case Condition::BelowEqual: case Condition::BelowEqual:
invert ? emit->jnbe(label) : emit->jbe(label); invert ? emit->b(label, a64::gt) : emit->b(label, a64::le);
break; break;
default: default:
@ -1717,7 +1565,6 @@ static void EmitConditionalJump(Condition condition, bool invert, Xbyak::CodeGen
break; break;
} }
} }
#endif
void CodeGenerator::EmitBranch(Condition condition, Reg lr_reg, Value&& branch_target) void CodeGenerator::EmitBranch(Condition condition, Reg lr_reg, Value&& branch_target)
{ {
@ -1779,8 +1626,6 @@ void CodeGenerator::EmitBranch(Condition condition, Reg lr_reg, Value&& branch_t
void CodeGenerator::EmitRaiseException(Exception excode, Condition condition /* = Condition::Always */) void CodeGenerator::EmitRaiseException(Exception excode, Condition condition /* = Condition::Always */)
{ {
Panic("Not implemented");
#if 0
if (condition == Condition::Always) if (condition == Condition::Always)
{ {
// no need to use far code if we're always raising the exception // no need to use far code if we're always raising the exception
@ -1795,15 +1640,22 @@ void CodeGenerator::EmitRaiseException(Exception excode, Condition condition /*
return; return;
} }
const void* far_code_ptr = GetCurrentFarCodePointer(); Value far_code_addr = m_register_cache.AllocateScratch(RegSize_64);
EmitConditionalJump(condition, false, m_emit, far_code_ptr);
REG_ALLOC_HACK();
a64::Label skip_raise_exception;
EmitConditionalJump(condition, true, m_emit, &skip_raise_exception);
m_emit->Mov(GetHostReg64(far_code_addr), reinterpret_cast<intptr_t>(GetCurrentFarCodePointer()));
m_emit->Br(GetHostReg64(far_code_addr));
m_emit->Bind(&skip_raise_exception);
SwitchToFarCode(); SwitchToFarCode();
EmitFunctionCall(nullptr, &Thunks::RaiseException, m_register_cache.GetCPUPtr(), EmitFunctionCall(nullptr, &Thunks::RaiseException, m_register_cache.GetCPUPtr(),
Value::FromConstantU8(static_cast<u8>(excode))); Value::FromConstantU8(static_cast<u8>(excode)));
EmitExceptionExit(); EmitExceptionExit();
SwitchToNearCode(); SwitchToNearCode();
#endif
} }
void ASMFunctions::Generate(JitCodeBuffer* code_buffer) void ASMFunctions::Generate(JitCodeBuffer* code_buffer)