mirror of
https://gitlab.com/freepascal.org/fpc/source.git
synced 2025-04-06 09:07:59 +02:00
82 lines
2.3 KiB
ObjectPascal
82 lines
2.3 KiB
ObjectPascal
{
|
|
Copyright (c) 1998-2010 by Florian Klaempfl and Jonas Maebe
|
|
Member of the Free Pascal development team
|
|
|
|
This unit contains high-level code generator support for riscv64
|
|
|
|
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 hlcgcpu;
|
|
|
|
{$i fpcdefs.inc}
|
|
|
|
interface
|
|
|
|
uses
|
|
globtype,
|
|
aasmdata,
|
|
symtype,
|
|
cgbase,cgutils,hlcgobj,hlcgrv;
|
|
|
|
type
|
|
thlcgcpu = class(thlcgriscv)
|
|
procedure a_load_const_subsetreg(list: TAsmlist; tosubsetsize: tdef; a: tcgint; const sreg: tsubsetregister); override;
|
|
end;
|
|
|
|
procedure create_hlcodegen;
|
|
|
|
implementation
|
|
|
|
uses
|
|
cpubase,aasmcpu,
|
|
defutil,
|
|
{$ifdef extdebug}
|
|
aasmtai,cutils,cgrv,
|
|
{$endif}
|
|
cgobj,cgcpu;
|
|
|
|
{ thlcgcpu }
|
|
|
|
|
|
procedure thlcgcpu.a_load_const_subsetreg(list: TAsmlist; tosubsetsize: tdef; a: tcgint; const sreg: tsubsetregister);
|
|
var
|
|
tmpreg : TRegister;
|
|
begin
|
|
{$ifdef extdebug}
|
|
list.concat(tai_comment.create(strpnew('a_load_const_subsetreg subsetregsize = ' + tcgsize2str(sreg.subsetregsize) + ' subsetsize = ' + tcgsize2str(def_cgsize(tosubsetsize)) + ' startbit = ' + ToStr(sreg.startbit) + ' a = ' + ToStr(a))));
|
|
{$endif}
|
|
{ loading the constant into the lowest bits of a temp register and then inserting is
|
|
better than loading some usually large constants and do some masking and shifting on riscv64 }
|
|
tmpreg:=getintregister(list,tosubsetsize);
|
|
a_load_const_reg(list,tosubsetsize,a,tmpreg);
|
|
a_load_reg_subsetreg(list,tosubsetsize,tosubsetsize,tmpreg,sreg);
|
|
end;
|
|
|
|
|
|
procedure create_hlcodegen;
|
|
begin
|
|
hlcg:=thlcgcpu.create;
|
|
create_codegen;
|
|
end;
|
|
|
|
|
|
|
|
begin
|
|
chlcgobj:=thlcgcpu;
|
|
end.
|