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Fixed FPU on RapidCard onwards (fixes OS/2 on RapidCard onwards to no longer think it's a 287) and renamed the Built-in FPU to Internal to be consistent with the rest of the emulator.

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OBattler
2020-06-15 22:49:30 +02:00
parent 685dfbb24e
commit 3e8d27d015
4 changed files with 363 additions and 363 deletions
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2
src/cpu/x87_ops_arith.h
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@@ -180,7 +180,7 @@ static int opFCOMPP(uint32_t fetchdat)
cpu_state.npxs &= ~(C0|C2|C3);
p = (uint64_t *)&ST(0);
q = (uint64_t *)&ST(1);
if ((*p == ((uint64_t)1 << 63) && *q == 0) && ((fpu_type == FPU_287XL) || (fpu_type == FPU_387)))
if ((*p == ((uint64_t)1 << 63) && *q == 0) && (fpu_type >= FPU_287XL))
cpu_state.npxs |= C0; /*Nasty hack to fix 80387 detection*/
else
cpu_state.npxs |= x87_compare(ST(0), ST(1));