freepascal.compiler/compiler/ia64/cpubase.pas

{
    Copyright (C) 2000-2006 by Florian Klaempfl

    this unit implements the base types for the iA-64 architecture

    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.

 ****************************************************************************
}
unit cpubase;

  interface

    uses
       cutils,
       globals,
       systems,
       cpuinfo,
       cgbase;

type
  tasmop = (A_ADD,A_SUB,A_ADDP4,A_AND,A_ANDCM,A_OR,A_XOR,A_SHLADD,
            A_SHLADDP4,A_ADDS,A_ADDL,A_CMP,A_CMP4,A_PADD1,A_PADD2,
            A_PADD4,A_PSUB1,A_PSUB2,A_PSUB4,A_PAVG1,A_PAVG2,A_PAVGSUB1,
            A_PAVGSUB2,A_PCMP1,A_PCMP2,A_PCMP4,A_PSHLADD2,A_PSHRADD2,
            A_PMPY2,A_MIX1,A_MIX2,A_MIX4,A_PACK2,A_PACK4,A_UNPACK2,
            A_UNPACK4,A_PMIN1,A_PMAX1,A_PMIN2,A_PMAX2,A_PSAD1,A_MUX1,
            A_MUX2,A_PSHR2,A_PSHR4,A_SHR,A_PSHL2,A_SHL4,A_SHL,
            A_POPCNT,A_SHRP,A_EXTR,A_DEP,A_TBIT,A_TNAT,A_BREAK,
            A_NOP,A_CHK,A_MOV,A_ZX1,A_ZX2,A_ZXT4,A_SXT1,A_SXT2,A_SXT4,
            A_CXZ1,A_CZX2,A_LD1,A_LD2,A_LD4,A_LD8,A_ST1,A_ST2,A_ST4,
            A_ST8,A_LDFS,A_LDFD,A_LDF8,A_LDFE,A_LDF,A_STFS,A_STFD,A_STF8,
            A_STFE,A_STF,A_LDFPS,A_LDFPD,A_LDFP8,A_LFETCH,A_CMPXCHG1,
            A_CMPXCHG2,A_CMPXHG4,A_CMPXCHG8,A_XCHG1,A_XCHG2,A_XCHG4,
            A_XCHG8,A_FETCHADD4,A_FETCHADD8,A_SETF,A_GETF,
            A_INVALA,A_MF,A_SRLZ,A_SYNC,A_FLUSHRS,A_FC,A_ALLOC,A_SUM,
            A_RUM,A_BR,A_CLRRRB,A_FMA,A_FPMA,A_FMS,A_FPMS,A_FNMA,A_FPNMA,
            A_XMA,A_FSELECT,A_FCLASS,A_FRCPA,A_FPRCPA,A_FRSQRTA,
            A_FPRSQRTA,A_FMIN,A_FMAX,A_FAMIN,A_FAMAX,A_FPMIN,A_FPMAX,
            A_FPAMIN,A_FPAMAX,A_FPCMP,A_FMERGE,A_FMIX,A_FSXT,A_FPACK,
            A_FSWAP,A_FAND,A_FANDCM,A_FOR,A_FXOR,A_FPMERGE,A_FCVT,
            A_FPCVT,A_FSETC,A_FCLRT,A_FCHKF,A_MOVL);

Const
  firstop = low(tasmop);
  lastop  = high(tasmop);

type
  TAsmCond = (C_NONE,C_LT,C_LTU,C_EQ,C_LT_UNC,C_LTU_UNC,C_EQ_UNC,
              C_EQ_AND,C_EQ_OR,C_EQ_OR_ANDCM,C_NE_AND,C_NE_OR);

  THint = (H_NONE,H_NT1,H_NT2,H_NTA);
  TLdStType = (LST_NONE,LST_S,LST_A,LSR_SA,LST_BIAS,LST_ACQ,LST_C_CLR,
               LST_FILL,LST_C_NC,LST_C_CLR_ACQ,LST_REL,
               LST_SPILL);

{*****************************************************************************
                                   Flags
*****************************************************************************}

    type
      TResFlags = (F_NONE,F_LT,F_LTU,F_EQ,F_LT_UNC,F_LTU_UNC,F_EQ_UNC,
              F_EQ_AND,F_EQ_OR,F_EQ_OR_ANDCM,F_NE_AND,F_NE_OR);

Type
 TRegister = (R_NO,  { R_NO is Mandatory, signifies no register }
              R_0,R_1,R_2,R_3,R_4,R_5,R_6,R_7,R_8,R_9,
              R_10,R_11,R_12,R_13,R_14,R_15,R_16,R_17,R_18,R_19,
              R_20,R_21,R_22,R_23,R_24,R_25,R_26,R_27,R_28,R_29,
              R_30,R_31,
              R_F0,R_F1,R_F2,R_F3,R_F4,R_F5,R_F6,R_F7,R_F8,R_F9,
              R_F10,R_F11,R_F12,R_F13,R_F14,R_F15,R_F16,R_F17,R_F18,R_F19,
              R_F20,R_F21,R_F22,R_F23,R_F24,R_F25,R_F26,R_F27,R_F28,R_F29,
              R_F30,R_F31);

  TRegisterset = Set of TRegister;

  { -1 indicates no qualifying prediction }
  tqp = -1..63;

const
  qp_none : tqp = -1;

{ Constants describing the registers }

Const
  intregs = [R_0..R_31];
  fpuregs = [R_F0..R_F31];
  mmregs = [];

  maxvarregs = 128;
  maxfpuvarregs = 128;

  max_operands = 4;

{*****************************************************************************
                          Default generic sizes
*****************************************************************************}

      { Defines the default address size for a processor, }
      OS_ADDR = OS_64;
      { the natural int size for a processor,
        has to match osuinttype/ossinttype as initialized in psystem }
      OS_INT = OS_64;
      OS_SINT = OS_S64;
      { the maximum float size for a processor,           }
      OS_FLOAT = OS_F80;
      { the size of a vector register for a processor     }
      OS_VECTOR = OS_M128;
      
{*****************************************************************************
                       GCC /ABI linking information
*****************************************************************************}

  {# Registers which must be saved when calling a routine declared as
     cppdecl, cdecl, stdcall, safecall, palmossyscall. The registers
     saved should be the ones as defined in the target ABI and / or GCC.

     This value can be deduced from CALLED_USED_REGISTERS array in the
     GCC source.
  }
  std_saved_registers = [R_9..R_14,R_F2..R_F9];
  {# Required parameter alignment when calling a routine declared as
     stdcall and cdecl. The alignment value should be the one defined
     by GCC or the target ABI.

     The value of this constant is equal to the constant
     PARM_BOUNDARY / BITS_PER_UNIT in the GCC source.
  }
  std_param_align = 8;

{*****************************************************************************
                   Opcode propeties (needed for optimizer)
*****************************************************************************}

implementation

end.