Subversion Repositories openrisc

// -*- C -*-

// Simulator definition for the MIPS MIPS-3D ASE.

// Copyright (C) 2002, 2010 Free Software Foundation, Inc.

// Contributed by Ed Satterthwaite and Chris Demetriou, of Broadcom

// Corporation (SiByte).

//

// This file is part of GDB, the GNU debugger.

//

// 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 3 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, see .

//  Reference: MIPS64 Architecture for Programmers Volume IV-c:

//             The MIPS-3D Application-Specific Extension to the

//             MIPS64 Architecture.  (MIPS Document MD00099)

010001,10,110,5.FT,5.FS,5.FD,011000:COP1:64,f::ADDR.PS

"addr.ps f, f, f"

*mips3d:

{

  /* fd.PL = ft.PU + ft.PL;  fd.PU = fs.PU + fs.PL;  */

  check_fpu (SD_);

  check_u64 (SD_, instruction_0);

  StoreFPR (FD, fmt_ps, AddR (ValueFPR (FS, fmt_ps),

                              ValueFPR (FT, fmt_ps), fmt_ps));

}

010001,01001,3.CC,0,1.TF,16.OFFSET:COP1:64,f::BC1ANY2tf

"bc1any2%s , %#lx"

*mips3d:

{

  address_word offset;

  int cc = CC;

  check_fpu (SD_);

  check_u64 (SD_, instruction_0);

  if ((cc & 0x1) != 0)

    Unpredictable ();

  if ((GETFCC (cc) == TF) || (GETFCC (cc + 1) == TF))

    {

      offset = (EXTEND16 (OFFSET) << 2);

      DELAY_SLOT (NIA + offset);

    }

}

010001,01010,3.CC,0,1.TF,16.OFFSET:COP1:64,f::BC1ANY4tf

"bc1any4%s , %#lx"

*mips3d:

{

  address_word offset;

  int cc = CC;

  check_fpu (SD_);

  check_u64 (SD_, instruction_0);

  if ((cc & 0x3) != 0)

    Unpredictable ();

  if ((GETFCC (cc) == TF)

      || (GETFCC (cc + 1) == TF)

      || (GETFCC (cc + 2) == TF)

      || (GETFCC (cc + 3) == TF))

    {

      offset = (EXTEND16 (OFFSET) << 2);

      DELAY_SLOT (NIA + offset);

    }

}

010001,10,3.FMT,5.FT,5.FS,3.CC,01,11,4.COND:COP1:64,f::CABS.cond.fmt

"cabs.%s.%s , f, f"

*mips3d:

{

  int fmt = FMT;

  check_fpu (SD_);

  check_u64 (SD_, instruction_0);

  check_fmt_p (SD_, fmt, instruction_0);

  CompareAbs (ValueFPR (FS, fmt), ValueFPR (FT, fmt), fmt, COND, CC);

  TRACE_ALU_RESULT (ValueFCR (31));

}

010001,10,110,00000,5.FS,5.FD,100100:COP1:64,f::CVT.PW.PS

"cvt.pw.ps f, f"

*mips3d:

{

  /* fd.pu = cvt_rnd (fs.pu); fd.pl = cvt_rnd (fs.pl);  */

  /* fmt_pw is fmt_long for 64 bit transfers, but cvt encoding is fmt_word.  */

  check_fpu (SD_);

  check_u64 (SD_, instruction_0);

  StoreFPR (FD, fmt_pw, ConvertPS (GETRM (), ValueFPR (FS, fmt_ps),

                                   fmt_ps, fmt_word));

}

010001,10,100,00000,5.FS,5.FD,100110:COP1:64,f::CVT.PS.PW

"cvt.ps.pw f, f"

*mips3d:

{

  /* fd.pl = cvt_rnd (fs.pl); fd.pu = cvt_rnd (fs.pu);  */

  /* fmt_pw is fmt_long for 64 bit transfers, but cvt encoding is fmt_word.  */

  check_fpu (SD_);

  check_u64 (SD_, instruction_0);

  StoreFPR (FD, fmt_ps, ConvertPS (GETRM (), ValueFPR (FS, fmt_pw),

                                   fmt_word, fmt_ps));

}

010001,10,110,5.FT,5.FS,5.FD,011010:COP1:64,f::MULR.PS

"mulr.ps f, f, f"

*mips3d:

{

  /* fd.PL = ft.PU * ft.PL;  fd.PU = fs.PU * fs.PL;  */

  check_fpu (SD_);

  check_u64 (SD_, instruction_0);

  StoreFPR (FD, fmt_ps, MultiplyR (ValueFPR (FS, fmt_ps),

                                   ValueFPR (FT, fmt_ps), fmt_ps));

}

010001,10,3.FMT,00000,5.FS,5.FD,011101:COP1:64,f::RECIP1.fmt

"recip1.%s f, f"

*mips3d:

{

  int fmt = FMT;

  check_fpu (SD_);

  check_u64 (SD_, instruction_0);

  check_fmt_p (SD_, fmt, instruction_0);

  StoreFPR (FD, fmt, Recip1 (ValueFPR (FS, fmt), fmt));

}

010001,10,3.FMT,5.FT,5.FS,5.FD,011100:COP1:64,f::RECIP2.fmt

"recip2.%s f, f, f"

*mips3d:

{

  int fmt = FMT;

  check_fpu (SD_);

  check_u64 (SD_, instruction_0);

  check_fmt_p (SD_, fmt, instruction_0);

  StoreFPR (FD, fmt, Recip2 (ValueFPR (FS, fmt), ValueFPR (FT, fmt), fmt));

}

010001,10,3.FMT,00000,5.FS,5.FD,011110:COP1:64,f::RSQRT1.fmt

"rsqrt1.%s f, f"

*mips3d:

{

  int fmt = FMT;

  check_fpu (SD_);

  check_u64 (SD_, instruction_0);

  check_fmt_p (SD_, fmt, instruction_0);

  StoreFPR (FD, fmt, RSquareRoot1 (ValueFPR (FS, fmt), fmt));

}

010001,10,3.FMT,5.FT,5.FS,5.FD,011111:COP1:64,f::RSQRT2.fmt

"rsqrt2.%s f, f, f"

*mips3d:

{

  int fmt = FMT;

  check_fpu (SD_);

  check_u64 (SD_, instruction_0);

  check_fmt_p (SD_, fmt, instruction_0);

  StoreFPR (FD, fmt, RSquareRoot2 (ValueFPR (FS, fmt),

                                   ValueFPR (FT, fmt), fmt));

}