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{
Copyright (c) 1998-2017 by Florian Klaempfl
Generates AVR inline 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 navrinl;
{$i fpcdefs.inc}
interface
uses
node,ninl,ncginl, aasmbase;
type
tavrinlinenode = class(tcginlinenode)
procedure second_abs_long; override;
function pass_typecheck_cpu:tnode;override;
function first_cpu : tnode;override;
procedure pass_generate_code_cpu;override;
end;
implementation
uses
compinnr,
aasmdata,
aasmcpu,
symdef,
defutil,
hlcgobj,
pass_2,
cgbase, cgobj, cgutils,
cpubase;
procedure tavrinlinenode.second_abs_long;
var
hl: TAsmLabel;
size: TCgSize;
begin
secondpass(left);
hlcg.location_force_reg(current_asmdata.CurrAsmList,left.location,left.resultdef,left.resultdef,false);
location:=left.location;
location.register:=hlcg.getintregister(current_asmdata.CurrAsmList,left.resultdef);
size:=def_cgsize(left.resultdef);
current_asmdata.getjumplabel(hl);
cg.a_cmp_const_reg_label(current_asmdata.CurrAsmList,size,OC_GTE,0,left.location.register,hl);
cg.a_op_reg_reg(current_asmdata.CurrAsmList,OP_NEG,size,left.location.register,location.register);
cg.a_label(current_asmdata.CurrAsmList,hl);
end;
function tavrinlinenode.pass_typecheck_cpu : tnode;
begin
Result:=nil;
case inlinenumber of
in_avr_nop,
in_avr_sleep,
in_avr_sei,
in_avr_wdr,
in_avr_cli:
begin
CheckParameters(0);
resultdef:=voidtype;
end;
in_avr_save:
begin
CheckParameters(0);
resultdef:=u8inttype;
end;
in_avr_restore:
begin
CheckParameters(1);
resultdef:=voidtype;
end;
else
Result:=inherited pass_typecheck_cpu;
end;
end;
function tavrinlinenode.first_cpu : tnode;
begin
Result:=nil;
case inlinenumber of
in_avr_nop,
in_avr_sleep,
in_avr_sei,
in_avr_wdr,
in_avr_cli,
in_avr_restore:
begin
expectloc:=LOC_VOID;
resultdef:=voidtype;
end;
in_avr_save:
begin
expectloc:=LOC_REGISTER;
resultdef:=u8inttype;
end;
else
Result:=inherited first_cpu;
end;
end;
procedure tavrinlinenode.pass_generate_code_cpu;
begin
case inlinenumber of
in_avr_nop:
current_asmdata.CurrAsmList.concat(taicpu.op_none(A_NOP));
in_avr_sleep:
current_asmdata.CurrAsmList.concat(taicpu.op_none(A_SLEEP));
in_avr_sei:
current_asmdata.CurrAsmList.concat(taicpu.op_none(A_SEI));
in_avr_wdr:
current_asmdata.CurrAsmList.concat(taicpu.op_none(A_WDR));
in_avr_cli:
current_asmdata.CurrAsmList.concat(taicpu.op_none(A_CLI));
in_avr_save:
begin
location_reset(location,LOC_CREGISTER,OS_8);
location.register:=cg.getintregister(current_asmdata.CurrAsmList,OS_8);
current_asmdata.CurrAsmList.concat(taicpu.op_reg_const(A_IN, location.register, NIO_SREG));
current_asmdata.CurrAsmList.concat(taicpu.op_none(A_CLI));
end;
in_avr_restore:
begin
secondpass(left);
hlcg.location_force_reg(current_asmdata.CurrAsmList,left.location,left.resultdef,left.resultdef,false);
current_asmdata.CurrAsmList.concat(taicpu.op_const_reg(A_OUT, NIO_SREG, left.location.register));
end;
else
inherited pass_generate_code_cpu;
end;
end;
begin
cinlinenode:=tavrinlinenode;
end.
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