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Add better rounded value for FLDLN2. Fixes rendering in Zone Raiders.

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This commit is contained in:
SarahW 2018-03-28 20:33:18 +01:00
commit a4b8eba56b
3 changed files with 24 additions and 2 deletions
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15
src/x87_ops.h
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@ -43,6 +43,21 @@ static inline void x87_push(double i)
cpu_state.tag[cpu_state.TOP&7] = (i == 0.0) ? 1 : 0;
}
static inline void x87_push_u64(uint64_t i)
{
union
{
double d;
uint64_t ll;
} td;
td.ll = i;
cpu_state.TOP=(cpu_state.TOP-1)&7;
cpu_state.ST[cpu_state.TOP] = td.d;
cpu_state.tag[cpu_state.TOP&7] = (td.d == 0.0) ? 1 : 0;
}
static inline double x87_pop()
{
double t = cpu_state.ST[cpu_state.TOP];