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217 lines
7.8 KiB
PHP
217 lines
7.8 KiB
PHP
{
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$Id$
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Copyright (c) 1998-2000 by Florian Klaempfl and Peter Vreman
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Contains the basic declarations for the i386 architecture
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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****************************************************************************
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}
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{ This include file contains the basic declarations for the i386 architecture.
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}
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{*****************************************************************************
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Operand Sizes
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*****************************************************************************}
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type
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topsize = (S_NO,
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S_B,S_W,S_L,S_BW,S_BL,S_WL,
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S_IS,S_IL,S_IQ,
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S_FS,S_FL,S_FX,S_D,S_Q,S_FV,S_FXX,
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S_NEAR,S_FAR,S_SHORT
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);
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{*****************************************************************************
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Registers
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*****************************************************************************}
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const
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{# Standard opcode string table (for each tasmop enumeration). The
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opcode strings should conform to the names as defined by the
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processor manufacturer.
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}
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std_op2str:op2strtable={$i i386int.inc}
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{*****************************************************************************
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Constants
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*****************************************************************************}
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firstsaveintreg = RS_EAX;
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lastsaveintreg = RS_EDX;
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firstsavefpureg = RS_INVALID;
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lastsavefpureg = RS_INVALID;
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firstsavemmreg = RS_MM0;
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lastsavemmreg = RS_MM7;
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general_superregisters = [RS_EAX,RS_EBX,RS_ECX,RS_EDX];
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usableregsint = [first_int_imreg..last_int_imreg];
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c_countusableregsint = 4;
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maxaddrregs = 1;
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usableregsaddr = [RS_ESI];
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c_countusableregsaddr = 1;
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maxvarregs = 4;
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varregs : array[1..maxvarregs] of tsuperregister =
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(RS_EBX,RS_EDX,RS_ECX,RS_EAX);
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maxfpuvarregs = 8;
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maxmmvarregs = 8;
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{*****************************************************************************
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GDB Information
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*****************************************************************************}
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{# Register indexes for stabs information, when some
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parameters or variables are stored in registers.
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Taken from i386.c (dbx_register_map) and i386.h
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(FIXED_REGISTERS) from GCC 3.x source code
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}
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reg_stab_table : array[tregisterindex] of shortint = (
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{$i r386stab.inc}
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);
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{*****************************************************************************
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Default generic sizes
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*****************************************************************************}
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{# Defines the default address size for a processor, }
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OS_ADDR = OS_32;
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{# the natural int size for a processor, }
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OS_INT = OS_32;
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{# the maximum float size for a processor, }
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OS_FLOAT = OS_F80;
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{# the size of a vector register for a processor }
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OS_VECTOR = OS_M64;
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{*****************************************************************************
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Generic Register names
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*****************************************************************************}
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{# Stack pointer register }
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NR_STACK_POINTER_REG = NR_ESP;
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RS_STACK_POINTER_REG = RS_ESP;
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{# Frame pointer register }
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RS_FRAME_POINTER_REG = RS_EBP;
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NR_FRAME_POINTER_REG = NR_EBP;
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{# Register for addressing absolute data in a position independant way,
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such as in PIC code. The exact meaning is ABI specific. For
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further information look at GCC source : PIC_OFFSET_TABLE_REGNUM
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}
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NR_PIC_OFFSET_REG = NR_EBX;
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{ Results are returned in this register (32-bit values) }
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NR_FUNCTION_RETURN_REG = NR_EAX;
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RS_FUNCTION_RETURN_REG = RS_EAX;
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{ Low part of 64bit return value }
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NR_FUNCTION_RETURN64_LOW_REG = NR_EAX;
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RS_FUNCTION_RETURN64_LOW_REG = RS_EAX;
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{ High part of 64bit return value }
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NR_FUNCTION_RETURN64_HIGH_REG = NR_EDX;
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RS_FUNCTION_RETURN64_HIGH_REG = RS_EDX;
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{ The value returned from a function is available in this register }
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NR_FUNCTION_RESULT_REG = NR_FUNCTION_RETURN_REG;
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RS_FUNCTION_RESULT_REG = RS_FUNCTION_RETURN_REG;
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{ The lowh part of 64bit value returned from a function }
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NR_FUNCTION_RESULT64_LOW_REG = NR_FUNCTION_RETURN64_LOW_REG;
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RS_FUNCTION_RESULT64_LOW_REG = RS_FUNCTION_RETURN64_LOW_REG;
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{ The high part of 64bit value returned from a function }
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NR_FUNCTION_RESULT64_HIGH_REG = NR_FUNCTION_RETURN64_HIGH_REG;
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RS_FUNCTION_RESULT64_HIGH_REG = RS_FUNCTION_RETURN64_HIGH_REG;
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{ WARNING: don't change to R_ST0!! See comments above implementation of }
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{ a_loadfpu* methods in rgcpu (JM) }
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NR_fpu_result_reg = NR_ST;
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NR_mm_result_reg = NR_MM0;
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{ Offset where the parent framepointer is pushed }
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PARENT_FRAMEPOINTER_OFFSET = 8;
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{*****************************************************************************
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GCC /ABI linking information
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*****************************************************************************}
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const
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{# Registers which must be saved when calling a routine declared as
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cppdecl, cdecl, stdcall, safecall, palmossyscall. The registers
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saved should be the ones as defined in the target ABI and / or GCC.
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This value can be deduced from the CALLED_USED_REGISTERS array in the
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GCC source.
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}
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std_saved_registers = [RS_ESI,RS_EDI,RS_EBX];
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{# Required parameter alignment when calling a routine declared as
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stdcall and cdecl. The alignment value should be the one defined
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by GCC or the target ABI.
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The value of this constant is equal to the constant
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PARM_BOUNDARY / BITS_PER_UNIT in the GCC source.
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}
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std_param_align = 4;
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{
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$Log$
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Revision 1.9 2003-09-03 15:55:01 peter
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* NEWRA branch merged
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Revision 1.8 2003/09/03 11:18:37 florian
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* fixed arm concatcopy
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+ arm support in the common compiler sources added
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* moved some generic cg code around
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+ tfputype added
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* ...
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Revision 1.7.2.3 2003/08/29 17:29:00 peter
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* next batch of updates
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Revision 1.7.2.2 2003/08/28 18:35:08 peter
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* tregister changed to cardinal
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Revision 1.7.2.1 2003/08/27 20:05:04 peter
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* forgotten
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Revision 1.7 2003/07/06 17:58:22 peter
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* framepointer fixes for sparc
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* parent framepointer code more generic
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Revision 1.6 2003/06/03 13:01:59 daniel
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* Register allocator finished
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Revision 1.5 2003/05/31 15:05:28 peter
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* FUNCTION_RESULT64_LOW/HIGH_REG added for int64 results
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Revision 1.4 2003/05/30 23:57:08 peter
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* more sparc cleanup
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* accumulator removed, splitted in function_return_reg (called) and
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function_result_reg (caller)
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Revision 1.3 2003/05/16 14:33:31 peter
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* regvar fixes
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Revision 1.2 2002/04/25 16:12:09 florian
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* fixed more problems with cpubase and x86-64
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Revision 1.1 2003/04/25 11:12:09 florian
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* merged i386/cpubase and x86_64/cpubase to x86/cpubase;
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different stuff went to cpubase.inc
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}
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