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72 lines
2.1 KiB
ObjectPascal
72 lines
2.1 KiB
ObjectPascal
{
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Copyright (c) 1998-2012 by Florian Klaempfl and others
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Generate i8086 assembler for constants
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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 n8086con;
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{$i fpcdefs.inc}
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interface
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uses
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node,ncon,ncgcon,nx86con;
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type
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{ tcgpointerconstnode }
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ti8086pointerconstnode = class(tcgpointerconstnode)
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procedure pass_generate_code;override;
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end;
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implementation
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uses
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systems,globals,globtype,
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symconst,symdef,
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defutil,
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cpubase,
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cga,cgx86,cgobj,cgbase,cgutils;
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{*****************************************************************************
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T8086POINTERCONSTNODE
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*****************************************************************************}
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procedure ti8086pointerconstnode.pass_generate_code;
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begin
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{ far pointer? }
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if (typedef.typ=pointerdef) and (tpointerdef(typedef).x86pointertyp in [x86pt_far,x86pt_huge]) then
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begin
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location_reset(location,LOC_CONSTANT,OS_32);
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location.value:=longint(value);
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end
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else
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begin
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{ an integer const. behaves as a memory reference }
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location_reset(location,LOC_CONSTANT,OS_ADDR);
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location.value:=aint(value);
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end;
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end;
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begin
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cpointerconstnode:=ti8086pointerconstnode;
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end.
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