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72 lines
1.9 KiB
ObjectPascal
72 lines
1.9 KiB
ObjectPascal
{
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Copyright (c) 1998-2002 by Florian Klaempfl
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Generate Z80 assembler for in call nodes
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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****************************************************************************
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}
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unit nz80cal;
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{$i fpcdefs.inc}
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interface
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uses
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ncgcal;
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type
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tz80callnode = class(tcgcallnode)
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protected
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procedure pop_parasize(pop_size:longint);override;
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end;
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implementation
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uses
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cpubase,
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aasmdata,aasmcpu,
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ncal,
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cgobj;
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{*****************************************************************************
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TZ80CALLNODE
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*****************************************************************************}
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procedure tz80callnode.pop_parasize(pop_size:longint);
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begin
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if pop_size>=2 then
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begin
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cg.getcpuregister(current_asmdata.CurrAsmList,NR_A);
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while pop_size>=2 do
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begin
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current_asmdata.CurrAsmList.Concat(taicpu.op_reg(A_POP,NR_AF));
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dec(pop_size,2);
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end;
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cg.ungetcpuregister(current_asmdata.CurrAsmList,NR_A);
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end;
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if pop_size=1 then
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current_asmdata.CurrAsmList.Concat(taicpu.op_reg(A_INC,NR_SP));
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end;
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begin
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ccallnode:=tz80callnode;
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end.
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