ppsspp/Core/MIPS/IR/IRInterpreter.h
2023-09-03 12:27:10 -07:00

26 lines
735 B
C++

#pragma once
#include "Common/CommonTypes.h"
class MIPSState;
struct IRInst;
inline static u32 ReverseBits32(u32 v) {
// http://graphics.stanford.edu/~seander/bithacks.html#ReverseParallel
// swap odd and even bits
v = ((v >> 1) & 0x55555555) | ((v & 0x55555555) << 1);
// swap consecutive pairs
v = ((v >> 2) & 0x33333333) | ((v & 0x33333333) << 2);
// swap nibbles ...
v = ((v >> 4) & 0x0F0F0F0F) | ((v & 0x0F0F0F0F) << 4);
// swap bytes
v = ((v >> 8) & 0x00FF00FF) | ((v & 0x00FF00FF) << 8);
// swap 2-byte long pairs
v = ( v >> 16 ) | ( v << 16);
return v;
}
u32 IRRunBreakpoint(u32 pc);
u32 IRRunMemCheck(u32 pc, u32 addr);
u32 IRInterpret(MIPSState *ms, const IRInst *inst, int count);