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Implement PHMSBH.

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Also clean PHMADH a bit.
This commit is contained in:
Jean-Philip Desjardins 2025-03-07 18:41:59 -05:00
parent 361bfece5d
commit f7f955ff4b
3 changed files with 73 additions and 8 deletions
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78
Source/ee/MA_EE.cpp
View file

@ -1250,25 +1250,25 @@ void CMA_EE::PHMADH()
for(unsigned int i = 0; i < 4; i++)
{
//Lower 16-bits (An0 * An1)
//Higher 16-bits (A(2i + 1) * B(2i + 1))
{
m_codeGen->PushRel(offsetof(CMIPS, m_State.nGPR[m_nRS].nV[i]));
m_codeGen->SignExt16();
m_codeGen->Sra(16);
m_codeGen->PushRel(offsetof(CMIPS, m_State.nGPR[m_nRT].nV[i]));
m_codeGen->SignExt16();
m_codeGen->Sra(16);
m_codeGen->MultS();
m_codeGen->ExtLow64();
}
//Higher 16-bits (Bn0 * Bn1)
//Lower 16-bits (A(2i) * B(2i))
{
m_codeGen->PushRel(offsetof(CMIPS, m_State.nGPR[m_nRS].nV[i]));
m_codeGen->Sra(16);
m_codeGen->SignExt16();
m_codeGen->PushRel(offsetof(CMIPS, m_State.nGPR[m_nRT].nV[i]));
m_codeGen->Sra(16);
m_codeGen->SignExt16();
m_codeGen->MultS();
m_codeGen->ExtLow64();
@ -1309,6 +1309,70 @@ void CMA_EE::PXOR()
PullVector(m_nRD);
}
//15
void CMA_EE::PHMSBH()
{
static const size_t offsets[4] =
{
offsetof(CMIPS, m_State.nLO[0]),
offsetof(CMIPS, m_State.nHI[0]),
offsetof(CMIPS, m_State.nLO1[0]),
offsetof(CMIPS, m_State.nHI1[0]),
};
static const size_t clearOffsets[4] =
{
offsetof(CMIPS, m_State.nLO[1]),
offsetof(CMIPS, m_State.nHI[1]),
offsetof(CMIPS, m_State.nLO1[1]),
offsetof(CMIPS, m_State.nHI1[1]),
};
for(unsigned int i = 0; i < 4; i++)
{
m_codeGen->PushCst(0);
m_codeGen->PullRel(clearOffsets[i]);
}
for(unsigned int i = 0; i < 4; i++)
{
//Higher 16-bits (A(2i + 1) * B(2i + 1))
{
m_codeGen->PushRel(offsetof(CMIPS, m_State.nGPR[m_nRS].nV[i]));
m_codeGen->Sra(16);
m_codeGen->PushRel(offsetof(CMIPS, m_State.nGPR[m_nRT].nV[i]));
m_codeGen->Sra(16);
m_codeGen->MultS();
m_codeGen->ExtLow64();
}
//Lower 16-bits (A(2i) * B(2i))
{
m_codeGen->PushRel(offsetof(CMIPS, m_State.nGPR[m_nRS].nV[i]));
m_codeGen->SignExt16();
m_codeGen->PushRel(offsetof(CMIPS, m_State.nGPR[m_nRT].nV[i]));
m_codeGen->SignExt16();
m_codeGen->MultS();
m_codeGen->ExtLow64();
}
m_codeGen->Sub();
if(m_nRD != 0)
{
m_codeGen->PushTop();
m_codeGen->PullRel(offsetof(CMIPS, m_State.nGPR[m_nRD].nV[i]));
}
//Store to LO/HI
m_codeGen->PullRel(offsets[i]);
}
}
//1A
void CMA_EE::PEXEH()
{
@ -2105,7 +2169,7 @@ CMA_EE::InstructionFuncConstant CMA_EE::m_pOpMmi2[0x20] =
//0x08
&CMA_EE::PMFHI, &CMA_EE::PMFLO, &CMA_EE::PINTH, &CMA_EE::Illegal, &CMA_EE::PMULTW, &CMA_EE::PDIVW, &CMA_EE::PCPYLD, &CMA_EE::Illegal,
//0x10
&CMA_EE::PMADDH, &CMA_EE::PHMADH, &CMA_EE::PAND, &CMA_EE::PXOR, &CMA_EE::Illegal, &CMA_EE::Illegal, &CMA_EE::Illegal, &CMA_EE::Illegal,
&CMA_EE::PMADDH, &CMA_EE::PHMADH, &CMA_EE::PAND, &CMA_EE::PXOR, &CMA_EE::Illegal, &CMA_EE::PHMSBH, &CMA_EE::Illegal, &CMA_EE::Illegal,
//0x18
&CMA_EE::Illegal, &CMA_EE::Illegal, &CMA_EE::PEXEH, &CMA_EE::PREVH, &CMA_EE::PMULTH, &CMA_EE::PDIVBW, &CMA_EE::PEXEW, &CMA_EE::PROT3W,
};

1
Source/ee/MA_EE.h
View file

@ -138,6 +138,7 @@ private:
void PHMADH();
void PAND();
void PXOR();
void PHMSBH();
void PEXEH();
void PREVH();
void PMULTH();

2
Source/ee/MA_EE_Reflection.cpp
View file

@ -204,7 +204,7 @@ INSTRUCTION CMA_EE::m_cReflMmi2[32] =
{ "PAND", NULL, CopyMnemonic, ReflOpRdRsRt, NULL, NULL },
{ "PXOR", NULL, CopyMnemonic, ReflOpRdRsRt, NULL, NULL },
{ NULL, NULL, NULL, NULL, NULL, NULL },
{ NULL, NULL, NULL, NULL, NULL, NULL },
{ "PHMSBH", NULL, CopyMnemonic, ReflOpRdRsRt, NULL, NULL },
{ NULL, NULL, NULL, NULL, NULL, NULL },
{ NULL, NULL, NULL, NULL, NULL, NULL },
//0x18