[aandrejevic] 66151: [FAST486] Add stubs for the remaining FPU instructions. Implement FNOP.
Author: aandrejevic Date: Tue Feb 3 03:26:59 2015 New Revision: 66151
URL: http://svn.reactos.org/svn/reactos?rev=66151&view=rev Log: [FAST486] Add stubs for the remaining FPU instructions. Implement FNOP.
Modified: trunk/reactos/lib/fast486/fpu.c
Modified: trunk/reactos/lib/fast486/fpu.c URL: http://svn.reactos.org/svn/reactos/trunk/reactos/lib/fast486/fpu.c?rev=66151... ============================================================================== --- trunk/reactos/lib/fast486/fpu.c [iso-8859-1] (original) +++ trunk/reactos/lib/fast486/fpu.c [iso-8859-1] Tue Feb 3 03:26:59 2015 @@ -1222,8 +1222,307 @@ } 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
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aandrejevic＠svn.reactos.org