unsigned int SingleCPDO(const unsigned int opcode) { FPA11 *fpa11 = GET_FPA11(); float32 rFm, rFn = 0; unsigned int Fd, Fm, Fn, nRc = 1; Fm = getFm(opcode); if (CONSTANT_FM(opcode)) { rFm = getSingleConstant(Fm); } else { switch (fpa11->fType[Fm]) { case typeSingle: rFm = fpa11->fpreg[Fm].fSingle; break; default: return 0; } } if (!MONADIC_INSTRUCTION(opcode)) { Fn = getFn(opcode); switch (fpa11->fType[Fn]) { case typeSingle: rFn = fpa11->fpreg[Fn].fSingle; break; default: return 0; } } Fd = getFd(opcode); switch (opcode & MASK_ARITHMETIC_OPCODE) { /* dyadic opcodes */ case ADF_CODE: fpa11->fpreg[Fd].fSingle = float32_add(rFn,rFm, &fpa11->fp_status); break; case MUF_CODE: case FML_CODE: fpa11->fpreg[Fd].fSingle = float32_mul(rFn,rFm, &fpa11->fp_status); break; case SUF_CODE: fpa11->fpreg[Fd].fSingle = float32_sub(rFn,rFm, &fpa11->fp_status); break; case RSF_CODE: fpa11->fpreg[Fd].fSingle = float32_sub(rFm,rFn, &fpa11->fp_status); break; case DVF_CODE: case FDV_CODE: fpa11->fpreg[Fd].fSingle = float32_div(rFn,rFm, &fpa11->fp_status); break; case RDF_CODE: case FRD_CODE: fpa11->fpreg[Fd].fSingle = float32_div(rFm,rFn, &fpa11->fp_status); break; #if 0 case POW_CODE: fpa11->fpreg[Fd].fSingle = float32_pow(rFn,rFm); break; case RPW_CODE: fpa11->fpreg[Fd].fSingle = float32_pow(rFm,rFn); break; #endif case RMF_CODE: fpa11->fpreg[Fd].fSingle = float32_rem(rFn,rFm, &fpa11->fp_status); break; #if 0 case POL_CODE: fpa11->fpreg[Fd].fSingle = float32_pol(rFn,rFm); break; #endif /* monadic opcodes */ case MVF_CODE: fpa11->fpreg[Fd].fSingle = rFm; break; case MNF_CODE: rFm ^= 0x80000000; fpa11->fpreg[Fd].fSingle = rFm; break; case ABS_CODE: rFm &= 0x7fffffff; fpa11->fpreg[Fd].fSingle = rFm; break; case RND_CODE: case URD_CODE: fpa11->fpreg[Fd].fSingle = float32_round_to_int(rFm, &fpa11->fp_status); break; case SQT_CODE: fpa11->fpreg[Fd].fSingle = float32_sqrt(rFm, &fpa11->fp_status); break; #if 0 case LOG_CODE: fpa11->fpreg[Fd].fSingle = float32_log(rFm); break; case LGN_CODE: fpa11->fpreg[Fd].fSingle = float32_ln(rFm); break; case EXP_CODE: fpa11->fpreg[Fd].fSingle = float32_exp(rFm); break; case SIN_CODE: fpa11->fpreg[Fd].fSingle = float32_sin(rFm); break; case COS_CODE: fpa11->fpreg[Fd].fSingle = float32_cos(rFm); break; case TAN_CODE: fpa11->fpreg[Fd].fSingle = float32_tan(rFm); break; case ASN_CODE: fpa11->fpreg[Fd].fSingle = float32_arcsin(rFm); break; case ACS_CODE: fpa11->fpreg[Fd].fSingle = float32_arccos(rFm); break; case ATN_CODE: fpa11->fpreg[Fd].fSingle = float32_arctan(rFm); break; #endif case NRM_CODE: break; default: { nRc = 0; } } if (0 != nRc) fpa11->fType[Fd] = typeSingle; return nRc; }