mirror of
https://gitlab.com/freepascal.org/fpc/source.git
synced 2025-06-06 10:58:22 +02:00
119 lines
4.3 KiB
ObjectPascal
119 lines
4.3 KiB
ObjectPascal
{
|
|
Copyright (c) 1998-2010 by Florian Klaempfl and Jonas Maebe
|
|
Member of the Free Pascal development team
|
|
|
|
This unit contains routines to create a pass-through high-level code
|
|
generator. This is used by most regular code generators.
|
|
|
|
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,
|
|
aasmbase, aasmdata,
|
|
cgbase, cgutils,
|
|
symconst,symtype,symdef,
|
|
parabase, hlcgobj, hlcg2ll;
|
|
|
|
type
|
|
thlcgm68k = class(thlcg2ll)
|
|
procedure a_bit_set_reg_reg(list: TAsmList; doset: boolean; bitnumbersize, destsize: tdef; bitnumber, dest: tregister); override;
|
|
procedure a_bit_set_const_reg(list: TAsmList; doset: boolean; destsize: tdef; bitnumber: tcgint; destreg: tregister); override;
|
|
procedure a_bit_set_reg_ref(list: TAsmList; doset: boolean; fromsize, tosize: tdef; bitnumber: tregister; const ref: treference); override;
|
|
procedure a_bit_set_const_ref(list: TAsmList; doset: boolean; destsize: tdef; bitnumber: tcgint; const ref: treference); override;
|
|
end;
|
|
|
|
|
|
procedure create_hlcodegen;
|
|
|
|
implementation
|
|
|
|
uses
|
|
verbose, systems,
|
|
aasmtai,
|
|
aasmcpu,
|
|
cutils,
|
|
globals,
|
|
defutil,
|
|
cgobj,
|
|
cpubase,
|
|
cpuinfo,
|
|
cgcpu;
|
|
|
|
const
|
|
bit_set_clr_instr: array[boolean] of tasmop = (A_BCLR,A_BSET);
|
|
|
|
procedure thlcgm68k.a_bit_set_reg_reg(list: TAsmList; doset: boolean; bitnumbersize, destsize: tdef; bitnumber, dest: tregister);
|
|
var
|
|
tmpvalue: tregister;
|
|
begin
|
|
tmpvalue:=getintregister(list,ptruinttype);
|
|
//list.concat(tai_comment.create(strpnew('a_bit_set_reg_reg: called!')));
|
|
a_load_const_reg(list,ptruinttype,destsize.size*8-1,tmpvalue);
|
|
a_op_reg_reg(list,OP_SUB,bitnumbersize,bitnumber,tmpvalue);
|
|
list.concat(taicpu.op_reg_reg(bit_set_clr_instr[doset],S_NO,tmpvalue,dest));
|
|
end;
|
|
|
|
procedure thlcgm68k.a_bit_set_const_reg(list: TAsmList; doset: boolean; destsize: tdef; bitnumber: tcgint; destreg: tregister);
|
|
begin
|
|
//list.concat(tai_comment.create(strpnew('a_bit_set_const_reg: called!')));
|
|
list.concat(taicpu.op_const_reg(bit_set_clr_instr[doset],S_NO,(destsize.size*8)-bitnumber-1,destreg));
|
|
end;
|
|
|
|
procedure thlcgm68k.a_bit_set_reg_ref(list: TAsmList; doset: boolean; fromsize, tosize: tdef; bitnumber: tregister; const ref: treference);
|
|
var
|
|
tmpvalue: tregister;
|
|
sref: tsubsetreference;
|
|
begin
|
|
//list.concat(tai_comment.create(strpnew('a_bit_set_reg_ref: called!')));
|
|
sref:=get_bit_reg_ref_sref(list,fromsize,tosize,bitnumber,ref);
|
|
tcg68k(cg).fixref(list,sref.ref);
|
|
|
|
tmpvalue:=getintregister(list,ptruinttype);
|
|
a_load_const_reg(list,ptruinttype,7,tmpvalue);
|
|
a_op_reg_reg(list,OP_SUB,fromsize,sref.bitindexreg,tmpvalue);
|
|
|
|
{ memory accesses of bset/bclr are always byte, so no alignment problem }
|
|
list.concat(taicpu.op_reg_ref(bit_set_clr_instr[doset],S_NO,tmpvalue,sref.ref));
|
|
end;
|
|
|
|
procedure thlcgm68k.a_bit_set_const_ref(list: TAsmList; doset: boolean; destsize: tdef; bitnumber: tcgint; const ref: treference);
|
|
var
|
|
sref: tsubsetreference;
|
|
begin
|
|
//list.concat(tai_comment.create(strpnew('a_bit_set_const_ref: called!')));
|
|
sref:=get_bit_const_ref_sref(bitnumber,destsize,ref);
|
|
tcg68k(cg).fixref(list,sref.ref);
|
|
|
|
{ memory accesses of bset/bclr are always byte, so no alignment problem }
|
|
list.concat(taicpu.op_const_ref(bit_set_clr_instr[doset],S_NO,8-sref.startbit-1,sref.ref));
|
|
end;
|
|
|
|
procedure create_hlcodegen;
|
|
begin
|
|
hlcg:=thlcgm68k.create;
|
|
create_codegen;
|
|
end;
|
|
|
|
end.
|