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DSP LLE Recompiler: Apply saturation to LOOP and BLOOP with $ac0.m and $ac1.m

This commit is contained in:
Pokechu22 2022-06-01 19:12:21 -07:00
parent bc206b7a27
commit e7f78379ec
3 changed files with 2 additions and 35 deletions
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2
Source/Core/Core/DSP/Jit/x64/DSPEmitter.h
View File

@ -286,8 +286,6 @@ private:
void dsp_op_write_reg_imm(int reg, u16 val);
void dsp_conditional_extend_accum(int reg);
void dsp_conditional_extend_accum_imm(int reg, u16 val);
void dsp_op_read_reg_dont_saturate(int reg, Gen::X64Reg host_dreg,
RegisterExtension extend = RegisterExtension::None);
void dsp_op_read_reg(int reg, Gen::X64Reg host_dreg,
RegisterExtension extend = RegisterExtension::None);

6
Source/Core/Core/DSP/Jit/x64/DSPJitBranch.cpp
View File

@ -358,8 +358,7 @@ void DSPEmitter::loop(const UDSPInstruction opc)
{
u16 reg = opc & 0x1f;
// u16 cnt = g_dsp.r[reg];
// todo: check if we can use normal variant here
dsp_op_read_reg_dont_saturate(reg, RDX, RegisterExtension::Zero);
dsp_op_read_reg(reg, RDX, RegisterExtension::Zero);
u16 loop_pc = m_compile_pc + 1;
TEST(16, R(EDX), R(EDX));
@ -429,8 +428,7 @@ void DSPEmitter::bloop(const UDSPInstruction opc)
{
const u16 reg = opc & 0x1f;
// u16 cnt = g_dsp.r[reg];
// todo: check if we can use normal variant here
dsp_op_read_reg_dont_saturate(reg, RDX, RegisterExtension::Zero);
dsp_op_read_reg(reg, RDX, RegisterExtension::Zero);
const u16 loop_pc = m_dsp_core.DSPState().ReadIMEM(m_compile_pc + 1);
TEST(16, R(EDX), R(EDX));

29
Source/Core/Core/DSP/Jit/x64/DSPJitUtil.cpp
View File

@ -196,35 +196,6 @@ void DSPEmitter::dsp_conditional_extend_accum_imm(int reg, u16 val)
}
}
void DSPEmitter::dsp_op_read_reg_dont_saturate(int reg, Gen::X64Reg host_dreg,
RegisterExtension extend)
{
switch (reg & 0x1f)
{
case DSP_REG_ST0:
case DSP_REG_ST1:
case DSP_REG_ST2:
case DSP_REG_ST3:
dsp_reg_load_stack(static_cast<StackRegister>(reg - DSP_REG_ST0), host_dreg);
switch (extend)
{
case RegisterExtension::Sign:
MOVSX(64, 16, host_dreg, R(host_dreg));
break;
case RegisterExtension::Zero:
MOVZX(64, 16, host_dreg, R(host_dreg));
break;
case RegisterExtension::None:
default:
break;
}
return;
default:
m_gpr.ReadReg(reg, host_dreg, extend);
return;
}
}
void DSPEmitter::dsp_op_read_reg(int reg, Gen::X64Reg host_dreg, RegisterExtension extend)
{
switch (reg & 0x1f)