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882 lines
31 KiB
ObjectPascal
882 lines
31 KiB
ObjectPascal
{
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Copyright (c) 2003 by Florian Klaempfl
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This unit implements an asm for the Z80
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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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{ This unit implements the assembler writer for the sdcc-sdasz80 assembler:
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http://sdcc.sourceforge.net/
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}
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unit agsdasz80;
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{$i fpcdefs.inc}
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interface
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uses
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globtype,systems,
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aasmbase,aasmtai,aasmdata,aasmcpu,
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assemble,
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cpubase;
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type
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{ TSdccSdasZ80Assembler }
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TSdccSdasZ80Assembler=class(TExternalAssembler)
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private
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procedure WriteDecodedSleb128(a: int64);
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procedure WriteDecodedUleb128(a: qword);
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function sectionname(atype:TAsmSectiontype;const aname:string;aorder:TAsmSectionOrder):string;
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procedure WriteSection(atype:TAsmSectiontype;const aname:string;aorder:TAsmSectionOrder;secalign:longint;
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secflags:TSectionFlags=[];secprogbits:TSectionProgbits=SPB_None);
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procedure WriteInstruction(hp: taicpu);
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procedure WriteOper(const o:toper; opcode: tasmop;ops:longint;dest : boolean);
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procedure WriteOper_jmp(const o:toper; ai : taicpu);
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procedure WriteExternals;
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public
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procedure WriteTree(p : TAsmList); override;
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procedure WriteAsmList;override;
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function MakeCmdLine: TCmdStr; override;
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end;
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implementation
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uses
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cutils,globals,verbose,
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cpuinfo,
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cgbase,cgutils,
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finput;
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const
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line_length = 70;
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max_tokens : longint = 25;
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ait_const2str : array[aitconst_128bit..aitconst_64bit_unaligned] of string[20]=(
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#9''#9,#9'FIXMEDQ'#9,#9'FIXMEDD'#9,#9'.dw'#9,#9'.db'#9,
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#9'FIXMESLEB',#9'FIXEMEULEB',
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#9'FIXMEDD RVA'#9,#9'FIXMEDD SECREL32'#9,
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#9'FIXME',#9'FIXME',#9'FIXME',#9'FIXME',
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#9'.dw'#9,#9'FIXMEDD'#9,#9'FIXMEDQ'#9
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);
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procedure TSdccSdasZ80Assembler.WriteDecodedSleb128(a: int64);
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var
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i,len : longint;
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buf : array[0..255] of byte;
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begin
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writer.AsmWrite(#9'.db'#9);
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len:=EncodeSleb128(a,buf,0);
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for i:=0 to len-1 do
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begin
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if (i > 0) then
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writer.AsmWrite(',');
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writer.AsmWrite(tostr(buf[i]));
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end;
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writer.AsmWriteLn(#9'; sleb '+tostr(a));
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end;
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procedure TSdccSdasZ80Assembler.WriteDecodedUleb128(a: qword);
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var
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i,len : longint;
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buf : array[0..63] of byte;
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begin
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writer.AsmWrite(#9'.db'#9);
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len:=EncodeUleb128(a,buf,0);
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for i:=0 to len-1 do
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begin
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if (i > 0) then
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writer.AsmWrite(',');
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writer.AsmWrite(tostr(buf[i]));
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end;
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writer.AsmWriteLn(#9'; uleb '+tostr(a));
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end;
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function TSdccSdasZ80Assembler.sectionname(atype: TAsmSectiontype;
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const aname: string; aorder: TAsmSectionOrder): string;
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const
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secnames : array[TAsmSectiontype] of string[length('__DATA, __datacoal_nt,coalesced')] = ('','',
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'_CODE',
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'_DATA',
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'_DATA',
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'.rodata',
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'.bss',
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'.threadvar',
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'.pdata',
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'', { stubs }
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'__DATA,__nl_symbol_ptr',
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'__DATA,__la_symbol_ptr',
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'__DATA,__mod_init_func',
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'__DATA,__mod_term_func',
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'.stab',
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'.stabstr',
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'.idata$2','.idata$4','.idata$5','.idata$6','.idata$7','.edata',
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'.eh_frame',
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'.debug_frame','.debug_info','.debug_line','.debug_abbrev','.debug_aranges','.debug_ranges',
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'.fpc',
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'.toc',
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'.init',
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'.fini',
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'.objc_class',
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'.objc_meta_class',
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'.objc_cat_cls_meth',
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'.objc_cat_inst_meth',
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'.objc_protocol',
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'.objc_string_object',
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'.objc_cls_meth',
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'.objc_inst_meth',
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'.objc_cls_refs',
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'.objc_message_refs',
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'.objc_symbols',
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'.objc_category',
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'.objc_class_vars',
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'.objc_instance_vars',
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'.objc_module_info',
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'.objc_class_names',
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'.objc_meth_var_types',
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'.objc_meth_var_names',
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'.objc_selector_strs',
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'.objc_protocol_ext',
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'.objc_class_ext',
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'.objc_property',
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'.objc_image_info',
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'.objc_cstring_object',
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'.objc_sel_fixup',
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'__DATA,__objc_data',
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'__DATA,__objc_const',
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'.objc_superrefs',
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'__DATA, __datacoal_nt,coalesced',
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'.objc_classlist',
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'.objc_nlclasslist',
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'.objc_catlist',
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'.obcj_nlcatlist',
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'.objc_protolist',
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'.stack',
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'.heap',
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'.gcc_except_table',
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'.ARM.attributes'
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);
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begin
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result:=secnames[atype];
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end;
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procedure TSdccSdasZ80Assembler.WriteSection(atype: TAsmSectiontype;
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const aname: string; aorder: TAsmSectionOrder; secalign: longint;
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secflags: TSectionFlags; secprogbits: TSectionProgbits);
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var
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s : string;
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secflag: TSectionFlag;
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sectionprogbits,
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sectionflags: boolean;
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begin
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writer.AsmLn;
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sectionflags:=false;
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sectionprogbits:=false;
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writer.AsmWrite(#9'.area ');
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{ sectionname may rename those sections, so we do not write flags/progbits for them,
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the assembler will ignore them/spite out a warning anyways }
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if not(atype in [sec_data,sec_rodata,sec_rodata_norel]) then
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begin
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sectionflags:=true;
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sectionprogbits:=true;
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end;
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s:=sectionname(atype,aname,aorder);
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writer.AsmWrite(s);
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{ flags explicitly defined? }
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(*if (sectionflags or sectionprogbits) and
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((secflags<>[]) or
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(secprogbits<>SPB_None)) then
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begin
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if sectionflags then
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begin
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s:=',"';
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for secflag in secflags do
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case secflag of
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SF_A:
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s:=s+'a';
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SF_W:
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s:=s+'w';
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SF_X:
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s:=s+'x';
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end;
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writer.AsmWrite(s+'"');
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end;
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if sectionprogbits then
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begin
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case secprogbits of
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SPB_PROGBITS:
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writer.AsmWrite(',%progbits');
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SPB_NOBITS:
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writer.AsmWrite(',%nobits');
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SPB_NOTE:
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writer.AsmWrite(',%note');
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SPB_None:
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;
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else
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InternalError(2019100801);
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end;
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end;
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end
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else
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case atype of
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sec_fpc :
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if aname = 'resptrs' then
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writer.AsmWrite(', "a", @progbits');
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sec_stub :
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begin
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case target_info.system of
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{ there are processor-independent shortcuts available }
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{ for this, namely .symbol_stub and .picsymbol_stub, but }
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{ they don't work and gcc doesn't use them either... }
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system_powerpc_darwin,
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system_powerpc64_darwin:
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if (cs_create_pic in current_settings.moduleswitches) then
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writer.AsmWriteln('__TEXT,__picsymbolstub1,symbol_stubs,pure_instructions,32')
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else
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writer.AsmWriteln('__TEXT,__symbol_stub1,symbol_stubs,pure_instructions,16');
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system_i386_darwin,
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system_i386_iphonesim:
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writer.AsmWriteln('__IMPORT,__jump_table,symbol_stubs,self_modifying_code+pure_instructions,5');
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system_arm_darwin:
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if (cs_create_pic in current_settings.moduleswitches) then
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writer.AsmWriteln('__TEXT,__picsymbolstub4,symbol_stubs,none,16')
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else
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writer.AsmWriteln('__TEXT,__symbol_stub4,symbol_stubs,none,12')
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{ darwin/(x86-64/AArch64) uses PC-based GOT addressing, no
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explicit symbol stubs }
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else
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internalerror(2006031101);
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end;
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end;
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else
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{ GNU AS won't recognize '.text.n_something' section name as belonging
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to '.text' and assigns default attributes to it, which is not
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always correct. We have to fix it.
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TODO: This likely applies to all systems which smartlink without
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creating libraries }
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begin
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if is_smart_section(atype) and (aname<>'') then
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begin
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s:=sectionattrs(atype);
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if (s<>'') then
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writer.AsmWrite(',"'+s+'"');
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end;
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if target_info.system in systems_aix then
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begin
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s:=sectionalignment_aix(atype,secalign);
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if s<>'' then
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writer.AsmWrite(','+s);
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end;
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end;
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end;*)
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writer.AsmLn;
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LastSecType:=atype;
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end;
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procedure TSdccSdasZ80Assembler.WriteInstruction(hp: taicpu);
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var
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i: Integer;
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begin
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writer.AsmWrite(#9#9+std_op2str[hp.opcode]);
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if taicpu(hp).ops<>0 then
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begin
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for i:=0 to taicpu(hp).ops-1 do
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begin
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if i=0 then
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begin
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writer.AsmWrite(#9);
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if hp.is_jmp and (hp.condition<>C_None) then
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writer.AsmWrite(uppercond2str[hp.condition]+',');
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end
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else
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writer.AsmWrite(',');
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if is_calljmp(hp.opcode) then
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WriteOper_jmp(taicpu(hp).oper[i]^,hp)
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else
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WriteOper(taicpu(hp).oper[i]^,hp.opcode,taicpu(hp).ops,(i=2));
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end;
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end;
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writer.AsmLn;
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end;
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procedure TSdccSdasZ80Assembler.WriteOper(const o: toper; opcode: tasmop; ops: longint; dest: boolean);
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var
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need_plus: Boolean;
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begin
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case o.typ of
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top_reg :
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writer.AsmWrite(std_regname(o.reg));
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top_const :
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begin
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{ if (ops=1) and (opcode<>A_RET) then
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writer.AsmWrite(sizestr(s,dest));}
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writer.AsmWrite('#'+tostr(longint(o.val)));
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end;
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top_ref:
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begin
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if not assigned(o.ref^.symbol) and
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((o.ref^.base<>NR_NO) or (o.ref^.index<>NR_NO)) and
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(o.ref^.offset<>0) then
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begin
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writer.AsmWrite(tostr(o.ref^.offset));
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writer.AsmWrite(' (');
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if o.ref^.base<>NR_NO then
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begin
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if o.ref^.index<>NR_NO then
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internalerror(2020040201);
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writer.AsmWrite(std_regname(o.ref^.base));
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end
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else if o.ref^.index<>NR_NO then
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begin
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if o.ref^.scalefactor>1 then
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internalerror(2020040202);
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writer.AsmWrite(std_regname(o.ref^.index));
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end;
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writer.AsmWrite(')');
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end
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else
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begin
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writer.AsmWrite('(');
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need_plus:=false;
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if o.ref^.base<>NR_NO then
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begin
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if o.ref^.index<>NR_NO then
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internalerror(2020040201);
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writer.AsmWrite(std_regname(o.ref^.base));
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need_plus:=true;
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end
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else if o.ref^.index<>NR_NO then
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begin
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if o.ref^.scalefactor>1 then
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internalerror(2020040202);
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writer.AsmWrite(std_regname(o.ref^.index));
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need_plus:=true;
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end;
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if assigned(o.ref^.symbol) then
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begin
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{if SmartAsm then
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AddSymbol(o.ref^.symbol.name,false);}
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if need_plus then
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writer.AsmWrite('+');
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writer.AsmWrite(o.ref^.symbol.name);
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need_plus:=true;
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end;
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if o.ref^.offset<>0 then
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begin
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if need_plus and (o.ref^.offset>0) then
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writer.AsmWrite('+');
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writer.AsmWrite(tostr(o.ref^.offset));
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need_plus:=true;
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end;
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if not need_plus then
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writer.AsmWrite('0');
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writer.AsmWrite(')');
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end;
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end;
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else
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internalerror(10001);
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end;
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end;
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procedure TSdccSdasZ80Assembler.WriteOper_jmp(const o: toper; ai: taicpu);
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begin
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case o.typ of
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top_reg :
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writer.AsmWrite(std_regname(o.reg));
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top_const :
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begin
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writer.AsmWrite('#'+tostr(longint(o.val)));
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end;
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top_ref:
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begin
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if o.ref^.refaddr=addr_no then
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begin
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writer.AsmWrite('TODO:indirect jump ref');
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//WriteReference(o.ref^);
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end
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else
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begin
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writer.AsmWrite(o.ref^.symbol.name);
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//if SmartAsm then
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// AddSymbol(o.ref^.symbol.name,false);
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if o.ref^.offset>0 then
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writer.AsmWrite('+'+tostr(o.ref^.offset))
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else
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if o.ref^.offset<0 then
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writer.AsmWrite(tostr(o.ref^.offset));
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end;
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end;
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else
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internalerror(10001);
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end;
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end;
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procedure TSdccSdasZ80Assembler.WriteExternals;
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var
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sym : TAsmSymbol;
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i : longint;
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begin
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writer.AsmWriteln('; Begin externals');
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for i:=0 to current_asmdata.AsmSymbolDict.Count-1 do
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begin
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sym:=TAsmSymbol(current_asmdata.AsmSymbolDict[i]);
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if sym.bind in [AB_EXTERNAL,AB_EXTERNAL_INDIRECT] then
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writer.AsmWriteln(#9'.globl'#9+sym.name);
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end;
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writer.AsmWriteln('; End externals');
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end;
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procedure TSdccSdasZ80Assembler.WriteTree(p: TAsmList);
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function getreferencestring(var ref : treference) : string;
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var
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s : string;
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begin
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s:='';
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with ref do
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begin
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{$ifdef extdebug}
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// if base=NR_NO then
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// internalerror(200308292);
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// if ((index<>NR_NO) or (shiftmode<>SM_None)) and ((offset<>0) or (symbol<>nil)) then
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// internalerror(200308293);
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{$endif extdebug}
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if index<>NR_NO then
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internalerror(2011021701)
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else if base<>NR_NO then
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begin
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// if addressmode=AM_PREDRECEMENT then
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// s:='-';
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//case base of
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// NR_R26:
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// s:=s+'X';
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// NR_R28:
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// s:=s+'Y';
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// NR_R30:
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// s:=s+'Z';
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// else
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// s:=gas_regname(base);
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//end;
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//if addressmode=AM_POSTINCREMENT then
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// s:=s+'+';
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//
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//if offset>0 then
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// s:=s+'+'+tostr(offset)
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//else if offset<0 then
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// s:=s+tostr(offset)
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end
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else if assigned(symbol) or (offset<>0) then
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begin
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//if assigned(symbol) then
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// s:=ReplaceForbiddenAsmSymbolChars(symbol.name);
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//
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//if offset<0 then
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// s:=s+tostr(offset)
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//else if offset>0 then
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// s:=s+'+'+tostr(offset);
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//case refaddr of
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// addr_hi8:
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// s:='hi8('+s+')';
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// addr_hi8_gs:
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// s:='hi8(gs('+s+'))';
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// addr_lo8:
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// s:='lo8('+s+')';
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// addr_lo8_gs:
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// s:='lo8(gs('+s+'))';
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// else
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// s:='('+s+')';
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//end;
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end;
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end;
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getreferencestring:=s;
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end;
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function getopstr(const o:toper) : string;
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var
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hs : string;
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first : boolean;
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r : tsuperregister;
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begin
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//case o.typ of
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// top_reg:
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// getopstr:=gas_regname(o.reg);
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// top_const:
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// getopstr:=tostr(longint(o.val));
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// top_ref:
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// if o.ref^.refaddr=addr_full then
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// begin
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// hs:=ReplaceForbiddenAsmSymbolChars(o.ref^.symbol.name);
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// if o.ref^.offset>0 then
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// hs:=hs+'+'+tostr(o.ref^.offset)
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// else
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// if o.ref^.offset<0 then
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// hs:=hs+tostr(o.ref^.offset);
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// getopstr:=hs;
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// end
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// else
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// getopstr:=getreferencestring(o.ref^);
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// else
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// internalerror(2002070604);
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//end;
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end;
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procedure doalign(alignment: byte; use_op: boolean; fillop: byte; maxbytes: byte; out last_align: longint;lasthp:tai);
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var
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i: longint;
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alignment64 : int64;
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begin
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last_align:=alignment;
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if alignment>1 then
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writer.AsmWriteLn(#9'.bndry '+tostr(alignment));
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end;
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//var op: TAsmOp;
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// s: string;
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// i: byte;
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// sep: string[3];
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var
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lasthp,
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hp: tai;
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s: string;
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counter,lines,i,j,l,tokens,pos,last_align: longint;
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quoted, do_line: Boolean;
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consttype: taiconst_type;
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ch: Char;
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InlineLevel : longint;
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prevfileinfo : tfileposinfo;
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previnfile : tinputfile;
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begin
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if not assigned(p) then
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exit;
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InlineLevel:=0;
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last_align:=1;
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lasthp:=nil;
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{ lineinfo is only needed for al_procedures (PFV) }
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do_line:=(cs_asm_source in current_settings.globalswitches) or
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((cs_lineinfo in current_settings.moduleswitches)
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and (p=current_asmdata.asmlists[al_procedures]));
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hp:=tai(p.first);
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while assigned(hp) do
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begin
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prefetch(pointer(hp.next)^);
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if not(hp.typ in SkipLineInfo) then
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begin
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previnfile:=lastinfile;
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prevfileinfo:=lastfileinfo;
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current_filepos:=tailineinfo(hp).fileinfo;
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{ no line info for inlined code }
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if do_line and (inlinelevel=0) then
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WriteSourceLine(hp as tailineinfo);
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(*if (lastfileinfo.line<>prevfileinfo.line) or
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(previnfile<>lastinfile) then
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begin
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{ +0 postfix means no line increment per assembler instruction }
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writer.AsmWrite('%LINE '+tostr(current_filepos.line)+'+0');
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if assigned(lastinfile) and ((previnfile<>lastinfile) or NewObject) then
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writer.AsmWriteLn(' '+lastinfile.name)
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else
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writer.AsmLn;
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NewObject:=false;
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end;*)
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end;
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case hp.typ of
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ait_comment :
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begin
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writer.AsmWrite(asminfo^.comment);
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writer.AsmWritePChar(tai_comment(hp).str);
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writer.AsmLn;
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end;
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ait_regalloc :
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begin
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if (cs_asm_regalloc in current_settings.globalswitches) then
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writer.AsmWriteLn(#9#9+asminfo^.comment+'Register '+std_regname(tai_regalloc(hp).reg)+' '+
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regallocstr[tai_regalloc(hp).ratype]);
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end;
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ait_tempalloc :
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begin
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if (cs_asm_tempalloc in current_settings.globalswitches) then
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WriteTempalloc(tai_tempalloc(hp));
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end;
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ait_section :
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begin
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if tai_section(hp).sectype<>sec_none then
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WriteSection(tai_section(hp).sectype,tai_section(hp).name^,tai_section(hp).secorder,
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tai_section(hp).secalign,tai_section(hp).secflags,tai_section(hp).secprogbits)
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else
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begin
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{$ifdef EXTDEBUG}
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writer.AsmWrite(asminfo^.comment);
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writer.AsmWriteln(' sec_none');
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{$endif EXTDEBUG}
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end;
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end;
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ait_align :
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begin
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doalign(tai_align_abstract(hp).aligntype,tai_align_abstract(hp).use_op,tai_align_abstract(hp).fillop,tai_align_abstract(hp).maxbytes,last_align,lasthp);
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end;
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ait_label :
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begin
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if tai_label(hp).labsym.is_used then
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begin
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writer.AsmWrite(tai_label(hp).labsym.name);
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if tai_label(hp).labsym.bind in [AB_GLOBAL,AB_PRIVATE_EXTERN] then
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writer.AsmWriteLn('::')
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else
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writer.AsmWriteLn(':');
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end;
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end;
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ait_symbol :
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begin
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if not(tai_symbol(hp).has_value) then
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begin
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if tai_symbol(hp).is_global then
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writer.AsmWriteLn(tai_symbol(hp).sym.name + '::')
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else
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writer.AsmWriteLn(tai_symbol(hp).sym.name + ':');
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end
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else
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begin
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if tai_symbol(hp).is_global then
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writer.AsmWriteLn(tai_symbol(hp).sym.name + '==' + tostr(tai_symbol(hp).value))
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else
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writer.AsmWriteLn(tai_symbol(hp).sym.name + '=' + tostr(tai_symbol(hp).value));
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end;
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end;
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ait_symbol_end :
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begin
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end;
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ait_datablock :
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begin
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if tai_datablock(hp).is_global or SmartAsm then
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writer.AsmWrite(tai_datablock(hp).sym.name + '::')
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else
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writer.AsmWrite(tai_datablock(hp).sym.name + ':');
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{if SmartAsm then
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AddSymbol(tai_datablock(hp).sym.name,true);}
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writer.AsmWriteLn(#9'.rs'#9+tostr(tai_datablock(hp).size));
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end;
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ait_const:
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begin
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consttype:=tai_const(hp).consttype;
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case consttype of
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aitconst_uleb128bit:
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WriteDecodedUleb128(qword(tai_const(hp).value));
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aitconst_sleb128bit:
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WriteDecodedSleb128(int64(tai_const(hp).value));
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aitconst_64bit,
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aitconst_64bit_unaligned,
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aitconst_32bit,
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aitconst_32bit_unaligned:
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begin
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writer.AsmWrite(#9'.dw'#9);
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l:=0;
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tokens:=1;
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repeat
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if assigned(tai_const(hp).sym) then
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begin
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if assigned(tai_const(hp).endsym) then
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s:=tai_const(hp).endsym.name+'-'+tai_const(hp).sym.name
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else
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s:=tai_const(hp).sym.name;
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if tai_const(hp).value<>0 then
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s:=s+tostr_with_plus(tai_const(hp).value);
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if consttype in [aitconst_64bit,aitconst_64bit_unaligned] then
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s:=s+',0,0,0'
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else
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s:=s+',0';
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end
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else
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if consttype in [aitconst_64bit,aitconst_64bit_unaligned] then
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s:=tostr(Word(tai_const(hp).value)) +','+tostr(Word(tai_const(hp).value shr 16))+','+
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tostr(Word(tai_const(hp).value shr 32))+','+tostr(Word(tai_const(hp).value shr 48))
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else
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s:=tostr(Word(tai_const(hp).value))+','+tostr(Word(tai_const(hp).value shr 16));
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writer.AsmWrite(s);
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inc(l,length(s));
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inc(tokens);
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if (l>line_length) or
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(tokens>max_tokens) or
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(hp.next=nil) or
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(tai(hp.next).typ<>ait_const) or
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(tai_const(hp.next).consttype<>consttype) then
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break;
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hp:=tai(hp.next);
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writer.AsmWrite(',');
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until false;
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{ Substract section start for secrel32 type }
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{if consttype=aitconst_secrel32_symbol then
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writer.AsmWrite(' - $$');}
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writer.AsmLn;
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end;
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{aitconst_128bit,}
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aitconst_16bit,
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aitconst_8bit,
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aitconst_16bit_unaligned{,
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aitconst_rva_symbol,
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aitconst_secrel32_symbol} :
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begin
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writer.AsmWrite(ait_const2str[consttype]);
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l:=0;
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tokens:=1;
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repeat
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if assigned(tai_const(hp).sym) then
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begin
|
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if assigned(tai_const(hp).endsym) then
|
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s:=tai_const(hp).endsym.name+'-'+tai_const(hp).sym.name
|
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else
|
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s:=tai_const(hp).sym.name;
|
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if tai_const(hp).value<>0 then
|
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s:=s+tostr_with_plus(tai_const(hp).value);
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end
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else
|
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s:=tostr(tai_const(hp).value);
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writer.AsmWrite(s);
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inc(l,length(s));
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inc(tokens);
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if (l>line_length) or
|
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(tokens>max_tokens) or
|
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(hp.next=nil) or
|
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(tai(hp.next).typ<>ait_const) or
|
|
(tai_const(hp.next).consttype<>consttype) then
|
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break;
|
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hp:=tai(hp.next);
|
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writer.AsmWrite(',');
|
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until false;
|
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{ Substract section start for secrel32 type }
|
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if consttype=aitconst_secrel32_symbol then
|
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writer.AsmWrite(' - $$');
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writer.AsmLn;
|
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end;
|
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else
|
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begin
|
|
writer.AsmWrite(asminfo^.comment);
|
|
writer.AsmWrite('WARNING: not yet implemented in assembler output: ');
|
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Str(consttype,s);
|
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writer.AsmWriteLn(s);
|
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end;
|
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end;
|
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end;
|
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ait_string :
|
|
begin
|
|
pos:=0;
|
|
for i:=1 to tai_string(hp).len do
|
|
begin
|
|
if pos=0 then
|
|
begin
|
|
writer.AsmWrite(#9'.ascii'#9'"');
|
|
pos:=20;
|
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end;
|
|
ch:=tai_string(hp).str[i-1];
|
|
case ch of
|
|
#0, {This can't be done by range, because a bug in FPC}
|
|
#1..#31,
|
|
#128..#255 : s:='\'+tostr(ord(ch) shr 6)+tostr((ord(ch) and 63) shr 3)+tostr(ord(ch) and 7);
|
|
'"' : s:='\"';
|
|
'\' : s:='\\';
|
|
else
|
|
s:=ch;
|
|
end;
|
|
writer.AsmWrite(s);
|
|
inc(pos,length(s));
|
|
if (pos>line_length) or (i=tai_string(hp).len) then
|
|
begin
|
|
writer.AsmWriteLn('"');
|
|
pos:=0;
|
|
end;
|
|
end;
|
|
end;
|
|
ait_instruction :
|
|
begin
|
|
WriteInstruction(taicpu(hp));
|
|
end;
|
|
ait_stab,
|
|
ait_force_line,
|
|
ait_function_name : ;
|
|
else
|
|
begin
|
|
writer.AsmWrite(asminfo^.comment);
|
|
writer.AsmWrite('WARNING: not yet implemented in assembler output: ');
|
|
Str(hp.typ,s);
|
|
writer.AsmWriteLn(s);
|
|
end;
|
|
end;
|
|
lasthp:=hp;
|
|
hp:=tai(hp.next);
|
|
end;
|
|
//op:=taicpu(hp).opcode;
|
|
//s:=#9+gas_op2str[op]+cond2str[taicpu(hp).condition];
|
|
//if taicpu(hp).ops<>0 then
|
|
// begin
|
|
// sep:=#9;
|
|
// for i:=0 to taicpu(hp).ops-1 do
|
|
// begin
|
|
// s:=s+sep+getopstr(taicpu(hp).oper[i]^);
|
|
// sep:=',';
|
|
// end;
|
|
// end;
|
|
//owner.writer.AsmWriteLn(s);
|
|
end;
|
|
|
|
|
|
procedure TSdccSdasZ80Assembler.WriteAsmList;
|
|
var
|
|
hal: TAsmListType;
|
|
begin
|
|
WriteExternals;
|
|
|
|
for hal:=low(TasmlistType) to high(TasmlistType) do
|
|
begin
|
|
writer.AsmWriteLn(asminfo^.comment+'Begin asmlist '+AsmListTypeStr[hal]);
|
|
writetree(current_asmdata.asmlists[hal]);
|
|
writer.AsmWriteLn(asminfo^.comment+'End asmlist '+AsmListTypeStr[hal]);
|
|
end;
|
|
end;
|
|
|
|
|
|
function TSdccSdasZ80Assembler.MakeCmdLine: TCmdStr;
|
|
begin
|
|
result := {'-mmcu='+lower(cputypestr[current_settings.cputype])+' '+}inherited MakeCmdLine;
|
|
end;
|
|
|
|
|
|
const
|
|
as_sdcc_sdasZ80_asm_info : tasminfo =
|
|
(
|
|
id : as_sdcc_sdasz80;
|
|
|
|
idtxt : 'SDCC-SDASZ80';
|
|
asmbin : 'sdcc-sdasz80';
|
|
asmcmd : '-o $OBJ $EXTRAOPT $ASM';
|
|
supported_targets : [system_Z80_embedded];
|
|
flags : [af_needar,af_smartlink_sections];
|
|
labelprefix : '.L';
|
|
comment : '; ';
|
|
dollarsign: 's';
|
|
);
|
|
|
|
|
|
begin
|
|
RegisterAssembler(as_sdcc_sdasZ80_asm_info,TSdccSdasZ80Assembler);
|
|
end.
|