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Moved FPU register stack into cpu_state structure.

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Fixed a couple of FPU bugs in x86-64 recompiler that were introduced in rev 543, fixes lightmap issues in Half-Life.
This commit is contained in:
SarahW 2016-08-25 21:09:02 +01:00
commit 5a02b518b8
17 changed files with 907 additions and 883 deletions
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24
src/x87_ops.h
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@ -5,7 +5,7 @@
static int rounding_modes[4] = {FE_TONEAREST, FE_DOWNWARD, FE_UPWARD, FE_TOWARDZERO};
#define ST(x) ST[((cpu_state.TOP+(x))&7)]
#define ST(x) cpu_state.ST[((cpu_state.TOP+(x))&7)]
#define C0 (1<<8)
#define C1 (1<<9)
@ -52,13 +52,13 @@ static inline void x87_checkexceptions()
static inline void x87_push(double i)
{
cpu_state.TOP=(cpu_state.TOP-1)&7;
ST[cpu_state.TOP]=i;
cpu_state.ST[cpu_state.TOP] = i;
cpu_state.tag[cpu_state.TOP&7] = (i == 0.0) ? 1 : 0;
}
static inline double x87_pop()
{
double t=ST[cpu_state.TOP];
double t = cpu_state.ST[cpu_state.TOP];
cpu_state.tag[cpu_state.TOP&7] = 3;
cpu_state.TOP=(cpu_state.TOP+1)&7;
return t;
@ -167,12 +167,12 @@ static inline void x87_st_fsave(int reg)
if (cpu_state.tag[reg] & TAG_UINT64)
{
writememl(easeg, cpu_state.eaaddr, MM[reg].q & 0xffffffff);
writememl(easeg, cpu_state.eaaddr + 4, MM[reg].q >> 32);
writememl(easeg, cpu_state.eaaddr, cpu_state.MM[reg].q & 0xffffffff);
writememl(easeg, cpu_state.eaaddr + 4, cpu_state.MM[reg].q >> 32);
writememw(easeg, cpu_state.eaaddr + 8, 0x5555);
}
else
x87_st80(ST[reg]);
x87_st80(cpu_state.ST[reg]);
}
static inline void x87_ld_frstor(int reg)
@ -186,19 +186,19 @@ static inline void x87_ld_frstor(int reg)
if (temp == 0x5555 && cpu_state.tag[reg] == 2)
{
cpu_state.tag[reg] = TAG_UINT64;
MM[reg].q = readmeml(easeg, cpu_state.eaaddr);
MM[reg].q |= ((uint64_t)readmeml(easeg, cpu_state.eaaddr + 4) << 32);
ST[reg] = (double)MM[reg].q;
cpu_state.MM[reg].q = readmeml(easeg, cpu_state.eaaddr);
cpu_state.MM[reg].q |= ((uint64_t)readmeml(easeg, cpu_state.eaaddr + 4) << 32);
cpu_state.ST[reg] = (double)cpu_state.MM[reg].q;
}
else
ST[reg] = x87_ld80();
cpu_state.ST[reg] = x87_ld80();
}
static inline void x87_ldmmx(MMX_REG *r)
static inline void x87_ldmmx(MMX_REG *r, uint16_t *w4)
{
r->l[0] = readmeml(easeg, cpu_state.eaaddr);
r->l[1] = readmeml(easeg, cpu_state.eaaddr + 4);
r->w[4] = readmemw(easeg, cpu_state.eaaddr + 8);
*w4 = readmemw(easeg, cpu_state.eaaddr + 8);
}
static inline void x87_stmmx(MMX_REG r)