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110 lines
3.4 KiB
ObjectPascal
110 lines
3.4 KiB
ObjectPascal
{
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$Id$
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Copyright (c) 2002 by Florian Klaempfl
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Implements the PowerPC specific part of call nodes
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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 bymethodpointer
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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 nppccal;
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{$i fpcdefs.inc}
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interface
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uses
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symdef,node,ncal,ncgcal;
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type
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tppccallnode = class(tcgcallnode)
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procedure load_framepointer;override;
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end;
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implementation
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uses
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globtype,systems,
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cutils,verbose,globals,
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symconst,symbase,symsym,symtable,defbase,paramgr,
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{$ifdef GDB}
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{$ifdef delphi}
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sysutils,
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{$else}
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strings,
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{$endif}
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gdb,
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{$endif GDB}
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cginfo,cgbase,pass_2,
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cpuinfo,cpubase,aasmbase,aasmtai,aasmcpu,
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nmem,nld,ncnv,
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ncgutil,cgobj,tgobj,regvars,rgobj,rgcpu,cg64f32,cgcpu;
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procedure tppccallnode.load_framepointer;
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begin
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{ if we call a nested function in a method, we must }
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{ push also SELF! }
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{ THAT'S NOT TRUE, we have to load ESI via frame pointer }
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{ access }
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{
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begin
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loadesi:=false;
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emit_reg(A_PUSH,S_L,R_ESI);
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end;
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}
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{
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if lexlevel=(tprocdef(procdefinition).parast.symtablelevel) then
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begin
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reference_reset_base(href,procinfo^.framepointer,procinfo^.framepointer_offset);
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cg.a_param_ref(exprasmlist,OS_ADDR,href,-1);
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end
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{ this is only true if the difference is one !!
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but it cannot be more !! }
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else if (lexlevel=(tprocdef(procdefinition).parast.symtablelevel)-1) then
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begin
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cg.a_param_reg(exprasmlist,OS_ADDR,procinfo^.framepointer,-1);
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end
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else if (lexlevel>(tprocdef(procdefinition).parast.symtablelevel)) then
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begin
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hregister:=rg.getregisterint(exprasmlist);
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reference_reset_base(href,procinfo^.framepointer,procinfo^.framepointer_offset);
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cg.a_load_ref_reg(exprasmlist,OS_ADDR,href,hregister);
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for i:=(tprocdef(procdefinition).parast.symtablelevel) to lexlevel-1 do
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begin
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{we should get the correct frame_pointer_offset at each level
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how can we do this !!! }
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reference_reset_base(href,hregister,procinfo^.framepointer_offset);
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cg.a_load_ref_reg(exprasmlist,OS_ADDR,href,hregister);
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end;
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cg.a_param_reg(exprasmlist,OS_ADDR,hregister,-1);
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rg.ungetregisterint(exprasmlist,hregister);
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end
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else
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internalerror(2002081303);
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}
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end;
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begin
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ccallnode:=tppccallnode;
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end.
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{
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$Log$
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Revision 1.1 2002-08-13 21:40:59 florian
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* more fixes for ppc calling conventions
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}
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