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[FAST486]

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Add stubs for the remaining FPU instructions. Implement FNOP.


svn path=/trunk/; revision=66151
This commit is contained in:
Aleksandar Andrejevic
2015-02-03 03:26:59 +00:00
parent 5ddd8473f3
commit f0d5e95467
1 changed files with 301 additions and 2 deletions
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reactos/lib/fast486/fpu.c
+301 -2
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@@ -1222,8 +1222,307 @@ FAST486_OPCODE_HANDLER(Fast486FpuOpcodeD9)
}
else
{
// TODO: NOT IMPLEMENTED
UNIMPLEMENTED;
switch ((ModRegRm.Register << 3) | ModRegRm.SecondRegister)
{
/* FLD */
case 0x00:
case 0x01:
case 0x02:
case 0x03:
case 0x04:
case 0x05:
case 0x06:
case 0x07:
{
if (FPU_GET_TAG(ModRegRm.SecondRegister) == FPU_TAG_EMPTY)
{
/* Raise the invalid operation exception */
State->FpuStatus.Ie = TRUE;
if (!State->FpuControl.Im)
{
Fast486FpuException(State);
return;
}
}
Fast486FpuPush(State, &FPU_ST(ModRegRm.SecondRegister));
break;
}
/* FXCH */
case 0x08:
case 0x09:
case 0x0A:
case 0x0B:
case 0x0C:
case 0x0D:
case 0x0E:
case 0x0F:
{
FAST486_FPU_DATA_REG Temp;
if ((FPU_GET_TAG(0) == FPU_TAG_EMPTY)
|| FPU_GET_TAG(ModRegRm.SecondRegister) == FPU_TAG_EMPTY)
{
State->FpuStatus.Ie = TRUE;
if (!State->FpuControl.Im) Fast486FpuException(State);
break;
}
/* Exchange */
Temp = FPU_ST(0);
FPU_ST(0) = FPU_ST(ModRegRm.SecondRegister);
FPU_ST(ModRegRm.SecondRegister) = Temp;
FPU_UPDATE_TAG(0);
FPU_UPDATE_TAG(ModRegRm.SecondRegister);
break;
}
/* FNOP */
case 0x10:
{
/* Do nothing */
break;
}
/* FSTP */
case 0x18:
case 0x19:
case 0x1A:
case 0x1B:
case 0x1C:
case 0x1D:
case 0x1E:
case 0x1F:
{
FPU_ST(ModRegRm.SecondRegister) = FPU_ST(0);
FPU_UPDATE_TAG(ModRegRm.SecondRegister);
Fast486FpuPop(State);
break;
}
/* FCHS */
case 0x20:
{
// TODO: NOT IMPLEMENTED
UNIMPLEMENTED;
break;
}
/* FABS */
case 0x21:
{
// TODO: NOT IMPLEMENTED
UNIMPLEMENTED;
break;
}
/* FTST */
case 0x24:
{
// TODO: NOT IMPLEMENTED
UNIMPLEMENTED;
break;
}
/* FXAM */
case 0x25:
{
// TODO: NOT IMPLEMENTED
UNIMPLEMENTED;
break;
}
/* FTSTP */
case 0x26:
{
// TODO: NOT IMPLEMENTED
UNIMPLEMENTED;
break;
}
/* FLD1 */
case 0x28:
/* FLDL2T */
case 0x29:
/* FLDL2E */
case 0x2A:
/* FLDPI */
case 0x2B:
/* FLDLG2 */
case 0x2C:
/* FLDLN2 */
case 0x2D:
/* FLDZ */
case 0x2E:
{
// TODO: NOT IMPLEMENTED
UNIMPLEMENTED;
break;
}
/* F2XM1 */
case 0x30:
{
// TODO: NOT IMPLEMENTED
UNIMPLEMENTED;
break;
}
/* FYL2X */
case 0x31:
{
// TODO: NOT IMPLEMENTED
UNIMPLEMENTED;
break;
}
/* FPTAN */
case 0x32:
{
// TODO: NOT IMPLEMENTED
UNIMPLEMENTED;
break;
}
/* FPATAN */
case 0x33:
{
// TODO: NOT IMPLEMENTED
UNIMPLEMENTED;
break;
}
/* FXTRACT */
case 0x34:
{
// TODO: NOT IMPLEMENTED
UNIMPLEMENTED;
break;
}
/* FPREM1 */
case 0x35:
{
// TODO: NOT IMPLEMENTED
UNIMPLEMENTED;
break;
}
/* FDECSTP */
case 0x36:
{
// TODO: NOT IMPLEMENTED
UNIMPLEMENTED;
break;
}
/* FINCSTP */
case 0x37:
{
// TODO: NOT IMPLEMENTED
UNIMPLEMENTED;
break;
}
/* FPREM */
case 0x38:
{
// TODO: NOT IMPLEMENTED
UNIMPLEMENTED;
break;
}
/* FYL2XP1 */
case 0x39:
{
// TODO: NOT IMPLEMENTED
UNIMPLEMENTED;
break;
}
/* FSQRT */
case 0x3A:
{
// TODO: NOT IMPLEMENTED
UNIMPLEMENTED;
break;
}
/* FSINCOS */
case 0x3B:
{
// TODO: NOT IMPLEMENTED
UNIMPLEMENTED;
break;
}
/* FRNDINT */
case 0x3C:
{
// TODO: NOT IMPLEMENTED
UNIMPLEMENTED;
break;
}
/* FSCALE */
case 0x3D:
{
// TODO: NOT IMPLEMENTED
UNIMPLEMENTED;
break;
}
/* FSIN */
case 0x3E:
{
// TODO: NOT IMPLEMENTED
UNIMPLEMENTED;
break;
}
/* FCOS */
case 0x3F:
{
// TODO: NOT IMPLEMENTED
UNIMPLEMENTED;
break;
}
/* Invalid */
default:
{
Fast486Exception(State, FAST486_EXCEPTION_UD);
return;
}
}
}
#endif