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JIT: 

- fix flags bug in MULxx instructions (fix bug #1333);
This commit is contained in:
mtabachenko 2013-09-10 10:22:25 +00:00
parent 2c7b47be4e
commit 7be35134be
1 changed files with 28 additions and 1 deletions
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29
desmume/src/arm_jit.cpp
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@ -390,6 +390,32 @@ static GpVar bb_profiler_entry;
JIT_COMMENT("end SET_NZ"); \
}
#define SET_N { \
JIT_COMMENT("SET_N"); \
GpVar x = c.newGpVar(kX86VarTypeGpz); \
GpVar y = c.newGpVar(kX86VarTypeGpz); \
c.sets(x.r8Lo()); \
c.movzx(y, flags_ptr); \
c.and_(y, 0x7F); \
c.shl(x, 7); \
c.or_(x, y); \
c.mov(flags_ptr, x.r8Lo()); \
JIT_COMMENT("end SET_N"); \
}
#define SET_Z { \
JIT_COMMENT("SET_Z"); \
GpVar x = c.newGpVar(kX86VarTypeGpz); \
GpVar y = c.newGpVar(kX86VarTypeGpz); \
c.setz(x.r8Lo()); \
c.movzx(y, flags_ptr); \
c.and_(y, 0xBF); \
c.shl(x, 6); \
c.or_(x, y); \
c.mov(flags_ptr, x.r8Lo()); \
JIT_COMMENT("end SET_Z"); \
}
#define SET_Q { \
JIT_COMMENT("SET_Q"); \
GpVar x = c.newGpVar(kX86VarTypeGpz); \
@ -1208,7 +1234,8 @@ static void MUL_Mxx_END(GpVar x, bool sign, int cycles)
c.adc(hi, reg_pos_ptr(16)); \
c.mov(reg_pos_ptr(12), lhs); \
c.mov(reg_pos_ptr(16), hi); \
c.or_(hi, lhs); SET_NZ(0); \
c.or_(lhs, hi); SET_Z; \
c.and_(hi, (1 << 31)); SET_N; \
} \
else \
{ \