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Added FPREM1 instruction for Interstate '76.

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This commit is contained in:
TomW 2015-09-21 08:14:53 +01:00
commit ea13ae015b
2 changed files with 19 additions and 2 deletions
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17
src/x87_ops_misc.h
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@ -562,6 +562,23 @@ static int opFPREM(uint32_t fetchdat)
CLOCK_CYCLES(100);
return 0;
}
static int opFPREM1(uint32_t fetchdat)
{
int64_t temp64;
FP_ENTER();
pc++;
if (fplog) pclog("FPREM1 %f %f ", ST(0), ST(1));
temp64 = (int64_t)(ST(0) / ST(1));
ST(0) = ST(0) - (ST(1) * (double)temp64);
tag[TOP] &= ~TAG_UINT64;
if (fplog) pclog("%f\n", ST(0));
npxs &= ~(C0|C1|C2|C3);
if (temp64 & 4) npxs|=C0;
if (temp64 & 2) npxs|=C3;
if (temp64 & 1) npxs|=C1;
CLOCK_CYCLES(100);
return 0;
}
static int opFSQRT(uint32_t fetchdat)
{