mirror of
https://github.com/jpd002/Play-.git
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77 lines
1.9 KiB
C++
77 lines
1.9 KiB
C++
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#include "VuBasicBlock.h"
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#include "MA_VU.h"
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CVuBasicBlock::CVuBasicBlock(CMIPS& context, uint32 begin, uint32 end) :
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CBasicBlock(context, begin, end)
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{
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}
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CVuBasicBlock::~CVuBasicBlock()
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{
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}
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void CVuBasicBlock::CompileRange(CCodeGen& codeGen)
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{
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assert((m_begin & 0x07) == 0);
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assert(((m_end + 4) & 0x07) == 0);
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CMA_VU* arch = static_cast<CMA_VU*>(m_context.m_pArch);
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for(uint32 address = m_begin; address <= m_end; address += 8)
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{
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uint32 addressLo = address + 0;
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uint32 addressHi = address + 4;
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uint32 opcodeLo = m_context.m_pMemoryMap->GetInstruction(addressLo);
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uint32 opcodeHi = m_context.m_pMemoryMap->GetInstruction(addressHi);
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VUShared::OPERANDSET loOps = arch->GetAffectedOperands(&m_context, addressLo, opcodeLo);
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VUShared::OPERANDSET hiOps = arch->GetAffectedOperands(&m_context, addressHi, opcodeHi);
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if(opcodeHi & 0x80000000)
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{
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arch->CompileInstruction(addressHi, &codeGen, &m_context);
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}
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else
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{
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uint8 savedReg = 0;
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if(hiOps.writeF != 0)
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{
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assert(hiOps.writeF != loOps.writeF);
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if(
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(hiOps.writeF == loOps.readF0) ||
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(hiOps.writeF == loOps.readF1)
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)
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{
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savedReg = hiOps.writeF;
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codeGen.MD_PushRel(offsetof(CMIPS, m_State.nCOP2[savedReg]));
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codeGen.MD_PullRel(offsetof(CMIPS, m_State.nCOP2VF_PreUp));
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}
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}
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arch->CompileInstruction(addressHi, &codeGen, &m_context);
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if(savedReg != 0)
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{
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codeGen.MD_PushRel(offsetof(CMIPS, m_State.nCOP2[savedReg]));
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codeGen.MD_PullRel(offsetof(CMIPS, m_State.nCOP2VF_UpRes));
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codeGen.MD_PushRel(offsetof(CMIPS, m_State.nCOP2VF_PreUp));
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codeGen.MD_PullRel(offsetof(CMIPS, m_State.nCOP2[savedReg]));
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}
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arch->CompileInstruction(addressLo, &codeGen, &m_context);
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if(savedReg != 0)
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{
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codeGen.MD_PushRel(offsetof(CMIPS, m_State.nCOP2VF_UpRes));
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codeGen.MD_PullRel(offsetof(CMIPS, m_State.nCOP2[savedReg]));
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}
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}
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//Sanity check
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assert(codeGen.IsStackEmpty());
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}
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}
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