fpc/compiler/sparc/cpupi.pas
fpc 790a4fe2d3 * log and id tags removed
git-svn-id: trunk@42 -
2005-05-21 09:42:41 +00:00

85 lines
2.3 KiB
ObjectPascal

{
Copyright (c) 2002 by Florian Klaempfl
This unit contains the CPU specific part of tprocinfo
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 cpupi;
{$i fpcdefs.inc}
interface
uses
cutils,
procinfo,cpuinfo,
psub;
type
TSparcProcInfo=class(tcgprocinfo)
public
constructor create(aparent:tprocinfo);override;
procedure allocate_push_parasize(size:longint);override;
function calc_stackframe_size:longint;override;
end;
implementation
uses
systems,globals,
tgobj,paramgr,symconst;
constructor tsparcprocinfo.create(aparent:tprocinfo);
begin
inherited create(aparent);
maxpushedparasize:=0;
end;
procedure tsparcprocinfo.allocate_push_parasize(size:longint);
begin
if size>maxpushedparasize then
maxpushedparasize:=size;
end;
function TSparcProcInfo.calc_stackframe_size:longint;
begin
{
Stackframe layout:
%fp
<locals>
<temp>
<arguments 6-n for calling>
%sp+92
<space for arguments 0-5> \
<return pointer for calling> | included in first_parm_offset
<register window save area for calling> /
%sp
Alignment must be the max available, as doubles require
8 byte alignment
}
result:=Align(tg.direction*tg.lasttemp+maxpushedparasize+target_info.first_parm_offset,aktalignment.localalignmax);
end;
begin
cprocinfo:=TSparcProcInfo;
end.