mirror of
https://github.com/ran-j/PS2Recomp.git
synced 2026-09-27 09:05:28 -04:00
Ranieri
ecc86f4b5d
* feat: explode vu1 in files feat: added way more tests for vu1 * feat: added VU1 cache
89 lines
2.6 KiB
C++
89 lines
2.6 KiB
C++
#ifndef PS2_VU1_H
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#define PS2_VU1_H
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#include <cstdint>
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#include <vector>
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class GS;
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class PS2Memory;
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struct VU1State
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{
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float vf[32][4];
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int32_t vi[16];
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float acc[4];
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float q;
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float p;
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float i;
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uint32_t pc;
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uint32_t mac;
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uint32_t clip;
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uint32_t status;
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bool ebit;
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uint32_t top; // VIF1 TOP visible to VU1 XTOP
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uint32_t itop; // VIF1 ITOP visible to VU1 XITOP
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bool branchPending;
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uint32_t branchTarget;
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uint32_t branchDelay;
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};
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class VU1Interpreter
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{
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public:
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VU1Interpreter();
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void reset();
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void execute(uint8_t *vuCode, uint32_t codeSize,
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uint8_t *vuData, uint32_t dataSize,
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GS &gs, PS2Memory *memory = nullptr,
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uint32_t startPC = 0, uint32_t top = 0, uint32_t itop = 0,
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uint32_t maxCycles = 65536);
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void resume(uint8_t *vuCode, uint32_t codeSize,
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uint8_t *vuData, uint32_t dataSize,
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GS &gs, PS2Memory *memory = nullptr,
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uint32_t top = 0, uint32_t itop = 0, uint32_t maxCycles = 65536);
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VU1State &state() { return m_state; }
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const VU1State &state() const { return m_state; }
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private:
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struct DecodedInstructionPair
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{
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uint32_t lower = 0;
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uint32_t upper = 0;
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bool iBit = false;
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bool eBit = false;
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bool lowerBeforeUpper = false;
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};
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VU1State m_state;
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std::vector<DecodedInstructionPair> m_decodedCodeCache;
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const uint8_t *m_cachedVuCode = nullptr;
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const PS2Memory *m_cachedMemory = nullptr;
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uint32_t m_cachedCodeSize = 0;
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uint64_t m_cachedCodeGeneration = 0;
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bool m_decodedCodeCacheValid = false;
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void run(uint8_t *vuCode, uint32_t codeSize,
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uint8_t *vuData, uint32_t dataSize,
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GS &gs, PS2Memory *memory, uint32_t maxCycles);
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DecodedInstructionPair decodeInstructionPair(const uint8_t *vuCode, uint32_t pc) const;
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DecodedInstructionPair getDecodedInstructionPairForPc(const uint8_t *vuCode, uint32_t codeSize,
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PS2Memory *memory, uint32_t pc);
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void rebuildDecodedCodeCache(const uint8_t *vuCode, uint32_t codeSize,
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const PS2Memory *memory, uint64_t generation);
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void execUpper(uint32_t instr);
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void execLower(uint32_t instr, uint8_t *vuData, uint32_t dataSize, GS &gs, PS2Memory *memory, uint32_t upperInstr);
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void applyDest(float *dst, const float *result, uint8_t dest);
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void applyDestAcc(const float *result, uint8_t dest);
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float broadcast(const float *vf, uint8_t bc);
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};
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#endif
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