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Implemented the x87 instruction FXTRACT.

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This commit is contained in:
OBattler
2023-04-29 18:05:20 +02:00
parent 7ea34dbb1d
commit 19ce34787d
2 changed files with 30 additions and 5 deletions
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14
src/cpu/x87_ops_misc.h
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@@ -33,6 +33,20 @@ opFNOP(uint32_t fetchdat)
return 0;
}
static int
opFXTRACT(uint32_t fetchdat)
{
double_decompose_t temp = (double_decompose_t) ST(0);
FP_ENTER();
cpu_state.pc++;
ST(0) = (double) temp.exponent;
x87_push((double) temp.mantissa);
CLOCK_CYCLES_FPU((fpu_type >= FPU_487SX) ? (x87_timings.fxtract) : (x87_timings.fxtract * cpu_multi));
CONCURRENCY_CYCLES((fpu_type >= FPU_487SX) ? (x87_concurrency.fxtract) : (x87_concurrency.fxtract * cpu_multi));
return 0;
}
static int
opFCLEX(uint32_t fetchdat)
{