/*    NetWinder Floating Point Emulator    (c) Rebel.COM, 1998,1999    Direct questions, comments to Scott Bambrough <scottb@netwinder.org>    This program is free software; you can redistribute it and/or modify    it under the terms of the GNU General Public License as published by    the Free Software Foundation; either version 2 of the License, or    (at your option) any later version.    This program is distributed in the hope that it will be useful,    but WITHOUT ANY WARRANTY; without even the implied warranty of    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the    GNU General Public License for more details.    You should have received a copy of the GNU General Public License    along with this program; if not, write to the Free Software    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.*/#include "fpa11.h"#include "softfloat.h"#include "fpopcode.h"float32 float32_exp(float32 Fm);float32 float32_ln(float32 Fm);float32 float32_sin(float32 rFm);float32 float32_cos(float32 rFm);float32 float32_arcsin(float32 rFm);float32 float32_arctan(float32 rFm);float32 float32_log(float32 rFm);float32 float32_tan(float32 rFm);float32 float32_arccos(float32 rFm);float32 float32_pow(float32 rFn,float32 rFm);float32 float32_pol(float32 rFn,float32 rFm);unsigned int SingleCPDO(const unsigned int opcode){   FPA11 *fpa11 = GET_FPA11();   float32 rFm, rFn = float32_zero;   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:         fpa11->fpreg[Fd].fSingle = float32_chs(rFm);      break;      case ABS_CODE:         fpa11->fpreg[Fd].fSingle = float32_abs(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;}#if 0float32 float32_exp(float32 Fm){//series}float32 float32_ln(float32 Fm){//series}float32 float32_sin(float32 rFm){//series}float32 float32_cos(float32 rFm){//series}float32 float32_arcsin(float32 rFm){//series}float32 float32_arctan(float32 rFm){  //series}float32 float32_arccos(float32 rFm){   //return float32_sub(halfPi,float32_arcsin(rFm));}float32 float32_log(float32 rFm){  return float32_div(float32_ln(rFm),getSingleConstant(7));}float32 float32_tan(float32 rFm){  return float32_div(float32_sin(rFm),float32_cos(rFm));}float32 float32_pow(float32 rFn,float32 rFm){  return float32_exp(float32_mul(rFm,float32_ln(rFn)));}float32 float32_pol(float32 rFn,float32 rFm){  return float32_arctan(float32_div(rFn,rFm));}#endif