fpc/compiler/x86_64/nx64cal.pas

74 lines
1.8 KiB
ObjectPascal

{
$Id$
Copyright (c) 2002 by Florian Klaempfl
Implements the x86-64 specific part of call nodes
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published bymethodpointer
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 nx64cal;
{$i fpcdefs.inc}
interface
uses
ncal,ncgcal;
type
tx8664callnode = class(tcgcallnode)
procedure extra_call_code;override;
end;
implementation
uses
globtype,
cpubase,
aasmtai,aasmcpu;
procedure tx8664callnode.extra_call_code;
var
mmregs : aint;
begin
{ x86_64 requires %al to contain the no. SSE regs passed }
if cnf_uses_varargs in callnodeflags then
begin
if assigned(varargsparas) then
mmregs:=varargsparas.mmregsused
else
mmregs:=0;
exprasmlist.concat(taicpu.op_const_reg(A_MOV,S_Q,mmregs,NR_RAX))
end;
end;
begin
ccallnode:=tx8664callnode;
end.
{
$Log$
Revision 1.4 2005-03-14 20:18:46 peter
* fix empty varargs codegeneration for x86_64
Revision 1.3 2005/02/14 17:13:10 peter
* truncate log
}