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133 lines
4.2 KiB
ObjectPascal
133 lines
4.2 KiB
ObjectPascal
{
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$Id$
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Copyright (c) 1998-2002 by Jonas Maebe, member of the Free Pascal
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Development Team
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This unit contains several types and constants necessary for the
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optimizer to work on the 80x86 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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Unit aoptcpub; { Assembler OPTimizer CPU specific Base }
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{ enable the following define if memory references can have both a base and }
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{ index register in 1 operand }
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{$define RefsHaveIndexReg}
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{ enable the following define if memory references can have a scaled index }
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{ define RefsHaveScale}
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{ enable the following define if memory references can have a segment }
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{ override }
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{ define RefsHaveSegment}
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Interface
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Uses
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aasmcpu,AOptBase;
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Type
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{ type of a normal instruction }
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TInstr = Taicpu;
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PInstr = ^TInstr;
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{ ************************************************************************* }
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{ **************************** TCondRegs ********************************** }
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{ ************************************************************************* }
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{ Info about the conditional registers }
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TCondRegs = Object
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Constructor Init;
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Destructor Done;
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End;
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{ ************************************************************************* }
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{ **************************** TAoptBaseCpu ******************************* }
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{ ************************************************************************* }
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TAoptBaseCpu = Object(TAoptBase)
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End;
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{ ************************************************************************* }
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{ ******************************* Constants ******************************* }
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{ ************************************************************************* }
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Const
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{ the maximum number of things (registers, memory, ...) a single instruction }
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{ changes }
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MaxCh = 3;
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{ the maximum number of operands an instruction has }
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MaxOps = 3;
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{Oper index of operand that contains the source (reference) with a load }
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{instruction }
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LoadSrc = 0;
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{Oper index of operand that contains the destination (register) with a load }
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{instruction }
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LoadDst = 1;
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{Oper index of operand that contains the source (register) with a store }
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{instruction }
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StoreSrc = 0;
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{Oper index of operand that contains the destination (reference) with a load }
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{instruction }
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StoreDst = 1;
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Implementation
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{ ************************************************************************* }
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{ **************************** TCondRegs ********************************** }
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{ ************************************************************************* }
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Constructor TCondRegs.init;
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Begin
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End;
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Destructor TCondRegs.Done; {$ifdef inl} inline; {$endif inl}
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Begin
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End;
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End.
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{
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$Log$
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Revision 1.5 2002-07-07 09:44:31 florian
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* powerpc target fixed, very simple units can be compiled
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Revision 1.4 2002/05/18 13:34:26 peter
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* readded missing revisions
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Revision 1.3 2002/05/16 19:46:52 carl
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+ defines.inc -> fpcdefs.inc to avoid conflicts if compiling by hand
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+ try to fix temp allocation (still in ifdef)
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+ generic constructor calls
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+ start of tassembler / tmodulebase class cleanup
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}
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