Play-/Source/ee/VuBasicBlock.h
Jean-Philip Desjardins 595ac814a6 First shot at non hack fix for GoW FMAC stall situation.
Makes some wild assumptions, probably need to be constrained to prevent regressions.
2021-02-14 20:06:22 -05:00

49 lines
1.3 KiB
C++

#pragma once
#include "../BasicBlock.h"
class CVuBasicBlock : public CBasicBlock
{
public:
CVuBasicBlock(CMIPS&, uint32, uint32);
virtual ~CVuBasicBlock() = default;
bool IsLinkable() const;
protected:
void CompileRange(CMipsJitter*) override;
private:
struct INTEGER_BRANCH_DELAY_INFO
{
unsigned int regIndex = 0;
uint32 saveRegAddress = MIPS_INVALID_PC;
uint32 useRegAddress = MIPS_INVALID_PC;
};
static bool IsConditionalBranch(uint32);
static bool IsNonConditionalBranch(uint32);
typedef uint32 FmacRegWriteTimes[32][4];
struct BlockFmacPipelineInfo
{
//State of the write times at the end of block
FmacRegWriteTimes regWriteTimes = {};
//Delays incurred during every instruction execution
std::vector<uint32> stallDelays;
//Pipe time at the end of block
uint32 pipeTime = 0;
};
INTEGER_BRANCH_DELAY_INFO GetIntegerBranchDelayInfo() const;
bool CheckIsSpecialIntegerLoop(unsigned int) const;
void ComputeSkipFlagsHints(const std::vector<uint32>&, std::vector<uint32>&) const;
BlockFmacPipelineInfo ComputeFmacStallDelays(uint32, uint32, FmacRegWriteTimes = nullptr) const;
std::pair<uint32, uint32> GetPreviousBlockWindow() const;
static void OffsetFmacWriteTimes(BlockFmacPipelineInfo&);
static void EmitXgKick(CMipsJitter*);
bool m_isLinkable = true;
};