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{
Copyright (c) 1998-2002 by Florian Klaempfl
Generate Z80 assembler for math 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 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 nz80mat;
{$i fpcdefs.inc}
interface
uses
node,nmat,ncgmat;
type
{ tz80notnode }
tz80notnode = class(tcgnotnode)
protected
procedure second_boolean;override;
end;
implementation
uses
globtype,systems,constexp,
cutils,verbose,globals,
symconst,symdef,aasmbase,aasmtai,aasmdata,aasmcpu,defutil,
cgbase,pass_2,
ncon,
cpubase,cpuinfo,
ncgutil,cgobj,cgutils,
hlcgobj;
{*****************************************************************************
tz80notnode
*****************************************************************************}
procedure tz80notnode.second_boolean;
var
i: Integer;
begin
if not handle_locjump then
begin
{ the second pass could change the location of left }
{ if it is a register variable, so we've to do }
{ this before the case statement }
secondpass(left);
if left.location.loc in [LOC_CREFERENCE,LOC_REFERENCE] then
hlcg.location_force_reg(current_asmdata.CurrAsmList,left.location,left.resultdef,resultdef,false);
case left.location.loc of
LOC_FLAGS :
begin
location_reset(location,LOC_FLAGS,OS_NO);
location.resflags:=left.location.resflags;
inverse_flags(location.resflags);
end;
(* LOC_CREFERENCE,
LOC_REFERENCE:
begin
{$if defined(cpu32bitalu)}
if is_64bit(resultdef) then
begin
hreg:=cg.GetIntRegister(current_asmdata.CurrAsmList,OS_32);
tcgx86(cg).make_simple_ref(current_asmdata.CurrAsmList,left.location.reference);
cg.a_load_ref_reg(current_asmdata.CurrAsmList,OS_32,OS_32,left.location.reference,hreg);
inc(left.location.reference.offset,4);
cg.a_op_ref_reg(current_asmdata.CurrAsmList,OP_OR,OS_32,left.location.reference,hreg);
end
else
{$elseif defined(cpu16bitalu)}
if is_64bit(resultdef) then
begin
hreg:=cg.GetIntRegister(current_asmdata.CurrAsmList,OS_16);
tcgx86(cg).make_simple_ref(current_asmdata.CurrAsmList,left.location.reference);
cg.a_load_ref_reg(current_asmdata.CurrAsmList,OS_16,OS_16,left.location.reference,hreg);
inc(left.location.reference.offset,2);
cg.a_op_ref_reg(current_asmdata.CurrAsmList,OP_OR,OS_16,left.location.reference,hreg);
inc(left.location.reference.offset,2);
cg.a_op_ref_reg(current_asmdata.CurrAsmList,OP_OR,OS_16,left.location.reference,hreg);
inc(left.location.reference.offset,2);
cg.a_op_ref_reg(current_asmdata.CurrAsmList,OP_OR,OS_16,left.location.reference,hreg);
end
else if is_32bit(resultdef) then
begin
hreg:=cg.GetIntRegister(current_asmdata.CurrAsmList,OS_16);
tcgx86(cg).make_simple_ref(current_asmdata.CurrAsmList,left.location.reference);
cg.a_load_ref_reg(current_asmdata.CurrAsmList,OS_16,OS_16,left.location.reference,hreg);
inc(left.location.reference.offset,2);
cg.a_op_ref_reg(current_asmdata.CurrAsmList,OP_OR,OS_16,left.location.reference,hreg);
end
else
{$endif}
emit_const_ref(A_CMP, TCGSize2Opsize[opsize], 0, left.location.reference);
location_reset(location,LOC_FLAGS,OS_NO);
location.resflags:=F_E;
end;*)
LOC_CONSTANT,
LOC_REGISTER,
LOC_CREGISTER,
LOC_SUBSETREG,
LOC_CSUBSETREG,
LOC_SUBSETREF,
LOC_CSUBSETREF :
begin
if tcgsize2size[def_cgsize(left.resultdef)]<>tcgsize2size[def_cgsize(resultdef)] then
internalerror(2020042209);
hlcg.location_force_reg(current_asmdata.CurrAsmList,left.location,left.resultdef,resultdef,false);
if tcgsize2size[def_cgsize(left.resultdef)]=1 then
begin
cg.getcpuregister(current_asmdata.CurrAsmList,NR_A);
cg.a_load_reg_reg(current_asmdata.CurrAsmList,OS_8,OS_8,left.location.register,NR_A);
current_asmdata.CurrAsmList.Concat(taicpu.op_reg_reg(A_OR,NR_A,NR_A));
cg.ungetcpuregister(current_asmdata.CurrAsmList,NR_A);
end
else
begin
cg.getcpuregister(current_asmdata.CurrAsmList,NR_A);
cg.a_load_reg_reg(current_asmdata.CurrAsmList,OS_8,OS_8,left.location.register,NR_A);
for i:=1 to tcgsize2size[def_cgsize(left.resultdef)]-1 do
current_asmdata.CurrAsmList.Concat(taicpu.op_reg_reg(A_OR,NR_A,cg.GetOffsetReg64(left.location.register,left.location.registerhi,i)));
cg.ungetcpuregister(current_asmdata.CurrAsmList,NR_A);
end;
location_reset(location,LOC_FLAGS,OS_NO);
location.resflags:=F_E;
end;
else
internalerror(2020042208);
end;
end;
end;
begin
cnotnode:=tz80notnode;
end.
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