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https://gitlab.com/freepascal.org/fpc/source.git
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1388 lines
46 KiB
ObjectPascal
1388 lines
46 KiB
ObjectPascal
{
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$Id$
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Copyright (c) 2002 by Florian Klaempfl
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This unit implements an asmoutput class for PowerPC with MPW syntax
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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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{
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This unit implements an asmoutput class for PowerPC with MPW syntax
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}
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unit agppcmpw;
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{$i fpcdefs.inc}
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interface
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uses
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globals,aasmbase,aasmtai,aasmcpu,assemble,
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cpubase;
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const
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mpw_reg2str : treg2strtable = ('',
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'r0','r1','r2','r3','r4','r5','r6','r7','r8','r9','r10','r11','r12','r13','r14','r15','r16',
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'r17','r18','r19','r20','r21','r22','r23','r24','r25','r26','r27','r28','r29','r30','r31',
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'f0','f1','f2','f3','f4','f5','f6','f7', 'f8','f9','f10','f11','f12',
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'f13','f14','f15','f16','f17', 'f18','f19','f20','f21','f22', 'f23','f24',
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'f25','f26','f27','f28','f29','f30','f31',
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'v0','v1','v2','v3','v4','v5','v6','v7','v8','v9','v10','v11','v12',
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'v13','v14','v15','v16','v17','v18','v19','v20','v21','v22', 'v23','v24',
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'v25','v26','v27','v28','v29','v30','v31',
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'cR','cr0','cr1','cr2','cr3','cr4','cr5','cr6','cr7',
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'xer','lr','ctr','fpscr'
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);
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type
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TPPCMPWAssembler = class(TExternalAssembler)
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procedure WriteTree(p:TAAsmoutput);override;
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procedure WriteAsmList;override;
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Function DoAssemble:boolean;override;
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procedure WriteExternals;
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{$ifdef GDB}
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procedure WriteFileLineInfo(var fileinfo : tfileposinfo);
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procedure WriteFileEndInfo;
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{$endif}
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procedure WriteAsmFileHeader;
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private
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procedure GenProcedureHeader(var hp:tai);
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end;
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implementation
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uses
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{$ifdef delphi}
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sysutils,
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{$endif}
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cutils,globtype,systems,cclasses,
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verbose,finput,fmodule,script,cpuinfo
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;
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const
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line_length = 70;
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{Whether internal procedure references should be xxx[PR]: }
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use_PR = false;
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const_storage_class = '[RW]';
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{$ifdef GDB}
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var
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n_line : byte; { different types of source lines }
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linecount,
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includecount : longint;
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funcname : pchar;
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stabslastfileinfo : tfileposinfo;
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isInFunction: Boolean;
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firstLineInFunction: longint;
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{$endif}
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function ReplaceForbiddenChars(var s: string):Boolean;
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{Returns wheater a replacement has occured.}
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var
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i:Integer;
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{The dollar sign is not allowed in MPW PPCAsm}
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begin
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ReplaceForbiddenChars:=false;
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for i:=1 to Length(s) do
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if s[i]='$' then
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begin
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s[i]:='s';
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ReplaceForbiddenChars:=true;
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end;
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end;
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const
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{*** From here is copyed from agppcgas.pp, except where marked with CHANGED.
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Perhaps put in a third common file. ***}
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op2str : array[tasmop] of string[14] = ('<none>',
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'add','add.','addo','addo.','addc','addc.','addco','addco.',
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'adde','adde.','addeo','addeo.','addi','addic','addic.','addis',
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'addme','addme.','addmeo','addmeo.','addze','addze.','addzeo',
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'addzeo.','and','and.','andc','andc.','andi.','andis.','b',
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'ba','bl','bla','bc','bca','bcl','bcla','bcctr','bcctrl','bclr',
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'bclrl','cmp','cmpi','cmpl','cmpli','cntlzw','cntlzw.','crand',
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'crandc','creqv','crnand','crnor','cror','crorc','crxor','dcba',
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'dcbf','dcbi','dcbst','dcbt','divw','divw.','divwo','divwo.',
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'divwu','divwu.','divwuo','divwuo.','eciwx','ecowx','eieio','eqv',
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'eqv.','extsb','extsb.','extsh','extsh.','fabs','fabs.','fadd',
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'fadd.','fadds','fadds.','fcmpo','fcmpu','fctiw','fctw.','fctwz',
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'fctwz.','fdiv','fdiv.','fdivs','fdivs.','fmadd','fmadd.','fmadds',
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'fmadds.','fmr','fmsub','fmsub.','fmsubs','fmsubs.','fmul','fmul.',
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'fmuls','fmuls.','fnabs','fnabs.','fneg','fneg.','fnmadd',
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'fnmadd.','fnmadds','fnmadds.','fnmsub','fnmsub.','fnmsubs',
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'fnmsubs.','fres','fres.','frsp','frsp.','frsqrte','frsqrte.',
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'fsel','fsel.','fsqrt','fsqrt.','fsqrts','fsqrts.','fsub','fsub.',
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'fsubs','fsubs.','icbi','isync','lbz','lbzu','lbzux','lbzx',
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'lfd','lfdu','lfdux','lfdx','lfs','lfsu','lfsux','lfsx','lha',
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'lhau','lhaux','lhax','hbrx','lhz','lhzu','lhzux','lhzx','lmw',
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'lswi','lswx','lwarx','lwbrx','lwz','lwzu','lwzux','lwzx','mcrf',
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'mcrfs','mcrxr','lcrxe','mfcr','mffs','maffs.','mfmsr','mfspr','mfsr',
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'mfsrin','mftb','mtfcrf','mtfd0','mtfsb1','mtfsf','mtfsf.',
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'mtfsfi','mtfsfi.','mtmsr','mtspr','mtsr','mtsrin','mulhw',
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'mulhw.','mulhwu','mulhwu.','mulli','mullw','mullw.','mullwo',
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'mullwo.','nand','nand.','neg','neg.','nego','nego.','nor','nor.',
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'or','or.','orc','orc.','ori','oris', 'rfi', 'rlwimi', 'rlwimi.',
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'rlwinm', 'rlwinm.','rlwnm','sc','slw', 'slw.', 'sraw', 'sraw.',
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'srawi', 'srawi.','srw', 'srw.', 'stb', 'stbu', 'stbux','stbx','stfd',
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'stfdu', 'stfdux', 'stfdx', 'stfiwx', 'stfs', 'stfsu', 'stfsux', 'stfsx',
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'sth', 'sthbrx', 'sthu', 'sthux', 'sthx', 'stmw', 'stswi', 'stswx', 'stw',
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'stwbrx', 'stwx.', 'stwu', 'stwux', 'stwx', 'subf', 'subf.', 'subfo',
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'subfo.', 'subfc', 'subc.', 'subfco', 'subfco.', 'subfe', 'subfe.',
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'subfeo', 'subfeo.', 'subfic', 'subfme', 'subfme.', 'subfmeo', 'subfmeo.',
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'subfze', 'subfze.', 'subfzeo', 'subfzeo.', 'sync', 'tlbia', 'tlbie',
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'tlbsync', 'tw', 'twi', 'xor', 'xor.', 'xori', 'xoris',
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{ some simplified mnemonics }
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'subi', 'subis', 'subic', 'subic.', 'sub', 'sub.', 'subo', 'subo.',
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'subc', 'subc.', 'subco', 'subco.', 'cmpwi', 'cmpw', 'cmplwi', 'cmplw',
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'extlwi', 'extlwi.', 'extrwi', 'extrwi.', 'inslwi', 'inslwi.', 'insrwi',
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'insrwi.', 'rotlwi', 'rotlwi.', 'rotlw', 'rotlw.', 'slwi', 'slwi.',
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'srwi', 'srwi.', 'clrlwi', 'clrlwi.', 'clrrwi', 'clrrwi.', 'clrslwi',
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'clrslwi.', 'blr', 'bctr', 'blrl', 'bctrl', 'crset', 'crclr', 'crmove',
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'crnot', 'mt', 'mf','nop', 'li', 'lis', 'la', 'mr','mr.','not', 'mtcr', 'mtlr', 'mflr',
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'mtctr', 'mfctr');
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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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with ref do
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begin
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inc(offset,offsetfixup);
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if (symaddr <> refs_full) then
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InternalError(2002110301)
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else if ((offset < -32768) or (offset > 32767)) then
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InternalError(19991);
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if assigned(symbol) then
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begin
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s:= symbol.name;
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ReplaceForbiddenChars(s);
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{if symbol.typ = AT_FUNCTION then
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;}
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s:= s+'[TC]' {ref to TOC entry }
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end
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else
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s:= '';
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if offset<0 then
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s:=s+tostr(offset)
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else
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if (offset>0) then
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begin
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if assigned(symbol) then
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s:=s+'+'+tostr(offset)
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else
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s:=s+tostr(offset);
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end;
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if (index.enum=R_NO) and (base.enum<>R_NO) then
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begin
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if offset=0 then
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if not assigned(symbol) then
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s:=s+'0';
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s:=s+'('+mpw_reg2str[base.enum]+')'
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end
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else if (index.enum<>R_NO) and (base.enum<>R_NO) and (offset=0) then
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s:=s+mpw_reg2str[base.enum]+','+mpw_reg2str[index.enum]
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else if ((index.enum<>R_NO) or (base.enum<>R_NO)) then
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internalerror(19992);
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end;
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getreferencestring:=s;
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end;
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function getopstr_jmp(const o:toper) : string;
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var
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hs : string;
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begin
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case o.typ of
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top_reg :
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getopstr_jmp:=mpw_reg2str[o.reg.enum];
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{ no top_ref jumping for powerpc }
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top_const :
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getopstr_jmp:=tostr(o.val);
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top_symbol :
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begin
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hs:=o.sym.name;
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ReplaceForbiddenChars(hs);
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if o.symofs>0 then
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hs:=hs+'+'+tostr(o.symofs)
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else
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if o.symofs<0 then
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hs:=hs+tostr(o.symofs);
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getopstr_jmp:=hs;
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end;
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top_none:
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getopstr_jmp:='';
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else
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{$ifndef testing}
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internalerror(2002070603);
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{$else testing}
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begin
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writeln('internalerror 10001');
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halt(1);
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end;
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{$endif testing}
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end;
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end;
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function getopstr(const o:toper) : string;
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var
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hs : string;
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begin
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case o.typ of
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top_reg:
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getopstr:=mpw_reg2str[o.reg.enum];
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{ no top_ref jumping for powerpc }
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top_const:
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getopstr:=tostr(longint(o.val));
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top_ref:
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getopstr:=getreferencestring(o.ref^);
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top_symbol:
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begin
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hs:=o.sym.name;
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ReplaceForbiddenChars(hs);
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if o.symofs>0 then
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hs:=hs+'+'+tostr(o.symofs)
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else
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if o.symofs<0 then
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hs:=hs+tostr(o.symofs);
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getopstr:=hs;
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end;
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else
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{$ifndef testing}
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internalerror(2002070604);
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{$else testing}
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begin
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writeln('internalerror 10001');
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halt(1);
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end;
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{$endif testing}
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end;
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end;
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function branchmode(o: tasmop): string[4];
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var tempstr: string[4];
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begin
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tempstr := '';
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case o of
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A_BCCTR,A_BCCTRL: tempstr := 'ctr';
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A_BCLR,A_BCLRL: tempstr := 'lr';
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end;
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case o of
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A_BL,A_BLA,A_BCL,A_BCLA,A_BCCTRL,A_BCLRL: tempstr := tempstr+'l';
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end;
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case o of
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A_BA,A_BLA,A_BCA,A_BCLA: tempstr:=tempstr+'a';
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end;
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branchmode := tempstr;
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end;
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function cond2str(op: tasmop; c: tasmcond): string;
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{ note: no checking is performed whether the given combination of }
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{ conditions is valid }
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var tempstr: string;
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begin
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tempstr:=#9;
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case c.simple of
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false: cond2str := tempstr+op2str[op]+#9+tostr(c.bo)+','+
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tostr(c.bi);
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true:
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if (op >= A_B) and (op <= A_BCLRL) then
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case c.cond of
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{ unconditional branch }
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C_NONE:
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cond2str := tempstr+op2str[op];
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{ bdnzt etc }
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else
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begin
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tempstr := tempstr+'b'+asmcondflag2str[c.cond]+
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branchmode(op)+#9;
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case c.cond of
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C_LT..C_NU:
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cond2str := tempstr+mpw_reg2str[c.cr];
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C_T..C_DZF:
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cond2str := tempstr+tostr(c.crbit);
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end;
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end;
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end
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{ we have a trap instruction }
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else
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begin
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internalerror(2002070601);
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{ not yet implemented !!!!!!!!!!!!!!!!!!!!! }
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{ case tempstr := 'tw';}
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end;
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end;
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end;
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Function GetInstruction(hp : tai):string; {CHANGED from method to proc}
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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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begin
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op:=taicpu(hp).opcode;
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if is_calljmp(op) then
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begin
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{ direct BO/BI in op[0] and op[1] not supported, put them in condition! }
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case op of
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A_B,A_BA,A_BLA:
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s:=#9+op2str[op]+#9;
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A_BCTR,A_BCTRL,A_BLR,A_BLRL:
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s:=#9+op2str[op];
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A_BL:
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s:=#9+op2str[op]+#9'.';
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else
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s:=cond2str(op,taicpu(hp).condition)+',';
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end;
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if (taicpu(hp).oper[0].typ <> top_none) then
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s:=s+getopstr_jmp(taicpu(hp).oper[0]);
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if use_PR then
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if op=A_BL then
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s:=s+'[PR]';
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end
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else
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{ process operands }
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begin
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case op of
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A_MFSPR:
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case taicpu(hp).oper[1].reg.enum of
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R_CR:
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begin
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op:=A_MFCR;
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taicpu(hp).ops:=1;
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end;
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R_LR:
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begin
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op:=A_MFLR;
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taicpu(hp).ops:=1;
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end;
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else
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internalerror(2002100701);
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end;
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A_MTSPR:
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case taicpu(hp).oper[1].reg.enum of
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R_CR:
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begin
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op:=A_MTCR;
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taicpu(hp).ops:=1;
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end;
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R_LR:
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begin
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op:=A_MTLR;
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taicpu(hp).ops:=1;
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end;
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else
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internalerror(2002100701);
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end;
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end;
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s:=#9+op2str[op];
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if taicpu(hp).ops<>0 then
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begin
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sep:=#9;
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for i:=0 to taicpu(hp).ops-1 do
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begin
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s:=s+sep+getopstr(taicpu(hp).oper[i]);
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sep:=',';
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end;
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end;
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end;
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GetInstruction:=s;
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end;
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|
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{*** Until here is copyed from agppcgas.pp. ***}
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|
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function single2str(d : single) : string;
|
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var
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hs : string;
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p : byte;
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begin
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str(d,hs);
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{ nasm expects a lowercase e }
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p:=pos('E',hs);
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if p>0 then
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hs[p]:='e';
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p:=pos('+',hs);
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if p>0 then
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delete(hs,p,1);
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single2str:=lower(hs);
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end;
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|
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function double2str(d : double) : string;
|
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var
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hs : string;
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p : byte;
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begin
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str(d,hs);
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{ nasm expects a lowercase e }
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p:=pos('E',hs);
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if p>0 then
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hs[p]:='e';
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p:=pos('+',hs);
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if p>0 then
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delete(hs,p,1);
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double2str:=lower(hs);
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end;
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|
|
function fixline(s:string):string;
|
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{
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return s with all leading and ending spaces and tabs removed
|
|
}
|
|
var
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i,j,k : longint;
|
|
begin
|
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i:=length(s);
|
|
while (i>0) and (s[i] in [#9,' ']) do
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dec(i);
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j:=1;
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while (j<i) and (s[j] in [#9,' ']) do
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inc(j);
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for k:=j to i do
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if s[k] in [#0..#31,#127..#255] then
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s[k]:='.';
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|
fixline:=Copy(s,j,i-j+1);
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|
end;
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{****************************************************************************
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PowerPC MPW Assembler
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****************************************************************************}
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procedure TPPCMPWAssembler.GenProcedureHeader(var hp:tai);
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{Returns the current hp where the caller should continue from}
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{For multiple entry procedures, only the last is exported as xxx[PR]
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(if use_PR is set) }
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procedure WriteExportHeader(hp:tai);
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var
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s: string;
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replaced: boolean;
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begin
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s:= tai_symbol(hp).sym.name;
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replaced:= ReplaceForbiddenChars(s);
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if replaced then
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begin
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if not use_PR then
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AsmWriteLn(#9'export'#9'.'+s+' => ''.'+tai_symbol(hp).sym.name+'''');
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AsmWriteLn(#9'export'#9+s+'[DS] => '''+tai_symbol(hp).sym.name+'[DS]''');
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end
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else
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begin
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if not use_PR then
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AsmWriteLn(#9'export'#9'.'+s);
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AsmWriteLn(#9'export'#9+s+'[DS]');
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end;
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{Entry in transition vector: }
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AsmWriteLn(#9'csect'#9+s+'[DS]');
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AsmWriteLn(#9'dc.l'#9'.'+s);
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AsmWriteln(#9'dc.l'#9'TOC[tc0]');
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{Entry in TOC: }
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AsmWriteLn(#9'toc');
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AsmWriteLn(#9'tc'#9+s+'[TC],'+s+'[DS]');
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end;
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function GetAdjacentTaiSymbol(var hp:tai):Boolean;
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begin
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GetAdjacentTaiSymbol:= false;
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while assigned(hp.next) do
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case tai(hp.next).typ of
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ait_symbol:
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begin
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hp:=tai(hp.next);
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GetAdjacentTaiSymbol:= true;
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Break;
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end;
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ait_stab_function_name:
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hp:=tai(hp.next);
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else
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begin
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//AsmWriteln(' ;#*#*# ' + tostr(Ord(tai(hp.next).typ)));
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Break;
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end;
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end;
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end;
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var
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first,last: tai;
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s: string;
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replaced: boolean;
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begin
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s:= tai_symbol(hp).sym.name;
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{Write all headers}
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first:= hp;
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repeat
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WriteExportHeader(hp);
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last:= hp;
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until not GetAdjacentTaiSymbol(hp);
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{Start the section of the body of the proc: }
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s:= tai_symbol(last).sym.name;
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replaced:= ReplaceForbiddenChars(s);
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if use_PR then
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if replaced then
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AsmWriteLn(#9'export'#9'.'+s+'[PR] => ''.'+tai_symbol(last).sym.name+'[PR]''')
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else
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AsmWriteLn(#9'export'#9'.'+s+'[PR]');
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AsmWriteLn(#9'csect'#9'.'+s+'[PR]'); //starts the section
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AsmWriteLn(#9'function'#9'.'+s+'[PR]'); //info for debugger
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{$ifdef GDB}
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if ((cs_debuginfo in aktmoduleswitches) or
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(cs_gdb_lineinfo in aktglobalswitches)) then
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begin
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//info for debuggers:
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firstLineInFunction:= stabslastfileinfo.line;
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AsmWriteLn(#9'beginf ' + tostr(firstLineInFunction));
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isInFunction:= true;
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end;
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{$endif}
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{Write all labels: }
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hp:= first;
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repeat
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s:= tai_symbol(hp).sym.name;
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ReplaceForbiddenChars(s);
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AsmWriteLn('.'+s+':');
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until not GetAdjacentTaiSymbol(hp);
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end;
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(*
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procedure TPPCMPWAssembler.GenProcedureHeader(hp:tai);
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var
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s: string;
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replaced: boolean;
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begin
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s:= tai_symbol(hp).sym.name;
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replaced:= ReplaceForbiddenChars(s);
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if replaced then
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begin
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AsmWriteLn(#9'export'#9'.'+s+'[PR] => ''.'+tai_symbol(hp).sym.name+'[PR]''');
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AsmWriteLn(#9'export'#9+s+'[DS] => '''+tai_symbol(hp).sym.name+'[DS]''');
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end
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else
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begin
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AsmWriteLn(#9'export'#9'.'+s+'[PR]');
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AsmWriteLn(#9'export'#9+s+'[DS]');
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end;
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{Entry in transition vector: }
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AsmWriteLn(#9'csect'#9+s+'[DS]');
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AsmWriteLn(#9'dc.l'#9'.'+s);
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AsmWriteln(#9'dc.l'#9'TOC[tc0]');
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{Entry in TOC: }
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AsmWriteLn(#9'toc');
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AsmWriteLn(#9'tc'#9+s+'[TC],'+s+'[DS]');
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{Start the section of the body of the proc: }
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AsmWriteLn(#9'csect'#9'.'+s+'[PR]');
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AsmWriteLn('.'+s+':');
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end;
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*)
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var
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LasTSec : TSection;
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lastfileinfo : tfileposinfo;
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infile,
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lastinfile : tinputfile;
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const
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ait_const2str:array[ait_const_32bit..ait_const_8bit] of string[8]=
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(#9'dc.l'#9,#9'dc.w'#9,#9'dc.b'#9);
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Function PadTabs(const p:string;addch:char):string;
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var
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s : string;
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i : longint;
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begin
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i:=length(p);
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if addch<>#0 then
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begin
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inc(i);
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s:=p+addch;
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end
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else
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s:=p;
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if i<8 then
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PadTabs:=s+#9#9
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else
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PadTabs:=s+#9;
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end;
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{$ifdef GDB}
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procedure TPPCMPWAssembler.WriteFileLineInfo(var fileinfo : tfileposinfo);
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var
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curr_n : byte;
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begin
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if not ((cs_debuginfo in aktmoduleswitches) or
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(cs_gdb_lineinfo in aktglobalswitches)) then
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exit;
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{ file changed ? (must be before line info) }
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if (fileinfo.fileindex<>0) and
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(stabslastfileinfo.fileindex<>fileinfo.fileindex) then
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begin
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infile:=current_module.sourcefiles.get_file(fileinfo.fileindex);
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if assigned(infile) then
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begin
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(*
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if includecount=0 then
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curr_n:=n_sourcefile
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else
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curr_n:=n_includefile;
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if (infile.path^<>'') then
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begin
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AsmWriteLn(#9'.stabs "'+lower(BsToSlash(FixPath(infile.path^,false)))+'",'+
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tostr(curr_n)+',0,0,'+target_asm.labelprefix+'text'+ToStr(IncludeCount));
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end;
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AsmWriteLn(#9'.stabs "'+lower(FixFileName(infile.name^))+'",'+
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tostr(curr_n)+',0,0,'+target_asm.labelprefix+'text'+ToStr(IncludeCount));
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*)
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AsmWriteLn(#9'file '''+lower(FixFileName(infile.name^))+'''');
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(*
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AsmWriteLn(target_asm.labelprefix+'text'+ToStr(IncludeCount)+':');
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*)
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inc(includecount);
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{ force new line info }
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stabslastfileinfo.line:=-1;
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end;
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end;
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{ line changed ? }
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if (stabslastfileinfo.line<>fileinfo.line) and (fileinfo.line<>0) then
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begin
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(*
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if (n_line=n_textline) and assigned(funcname) and
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(target_info.use_function_relative_addresses) then
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begin
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AsmWriteLn(target_asm.labelprefix+'l'+tostr(linecount)+':');
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AsmWrite(#9'.stabn '+tostr(n_line)+',0,'+tostr(fileinfo.line)+','+
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target_asm.labelprefix+'l'+tostr(linecount)+' - ');
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AsmWritePChar(FuncName);
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AsmLn;
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inc(linecount);
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end
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else
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AsmWriteLn(#9'.stabd'#9+tostr(n_line)+',0,'+tostr(fileinfo.line));
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*)
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if isInFunction then
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AsmWriteln(#9'line '+ tostr(fileinfo.line - firstLineInFunction - 1));
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end;
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stabslastfileinfo:=fileinfo;
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end;
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procedure TPPCMPWAssembler.WriteFileEndInfo;
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begin
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if not ((cs_debuginfo in aktmoduleswitches) or
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(cs_gdb_lineinfo in aktglobalswitches)) then
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exit;
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AsmLn;
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(*
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AsmWriteLn(ait_section2str(sec_code));
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AsmWriteLn(#9'.stabs "",'+tostr(n_sourcefile)+',0,0,'+target_asm.labelprefix+'etext');
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AsmWriteLn(target_asm.labelprefix+'etext:');
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*)
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end;
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{$endif}
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procedure TPPCMPWAssembler.WriteTree(p:TAAsmoutput);
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var
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s,
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prefix,
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suffix : string;
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hp : tai;
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hp1 : tailineinfo;
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counter,
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lines,
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InlineLevel : longint;
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i,j,l : longint;
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consttyp : taitype;
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found,
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do_line,DoNotSplitLine,
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quoted : boolean;
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sep : char;
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replaced : boolean;
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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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{ lineinfo is only needed for codesegment (PFV) }
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do_line:=((cs_asm_source in aktglobalswitches) or
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(cs_lineinfo in aktmoduleswitches))
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and (p=codesegment);
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DoNotSplitLine:=false;
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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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if not(hp.typ in SkipLineInfo) and
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not DoNotSplitLine then
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begin
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hp1 := hp as tailineinfo;
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{$ifdef GDB}
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{ write debug info }
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if (cs_debuginfo in aktmoduleswitches) or
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(cs_gdb_lineinfo in aktglobalswitches) then
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WriteFileLineInfo(hp1.fileinfo);
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{$endif GDB}
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if do_line then
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begin
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{ load infile }
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if lastfileinfo.fileindex<>hp1.fileinfo.fileindex then
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begin
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infile:=current_module.sourcefiles.get_file(hp1.fileinfo.fileindex);
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if assigned(infile) then
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begin
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{ open only if needed !! }
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if (cs_asm_source in aktglobalswitches) then
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infile.open;
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end;
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{ avoid unnecessary reopens of the same file !! }
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lastfileinfo.fileindex:=hp1.fileinfo.fileindex;
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{ be sure to change line !! }
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lastfileinfo.line:=-1;
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end;
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{ write source }
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if (cs_asm_source in aktglobalswitches) and
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assigned(infile) then
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begin
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if (infile<>lastinfile) then
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begin
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AsmWriteLn(target_asm.comment+'['+infile.name^+']');
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if assigned(lastinfile) then
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lastinfile.close;
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end;
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if (hp1.fileinfo.line<>lastfileinfo.line) and
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((hp1.fileinfo.line<infile.maxlinebuf) or (InlineLevel>0)) then
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begin
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if (hp1.fileinfo.line<>0) and
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((infile.linebuf^[hp1.fileinfo.line]>=0) or (InlineLevel>0)) then
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AsmWriteLn(target_asm.comment+'['+tostr(hp1.fileinfo.line)+'] '+
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fixline(infile.GetLineStr(hp1.fileinfo.line)));
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{ set it to a negative value !
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to make that is has been read already !! PM }
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if (infile.linebuf^[hp1.fileinfo.line]>=0) then
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infile.linebuf^[hp1.fileinfo.line]:=-infile.linebuf^[hp1.fileinfo.line]-1;
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end;
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end;
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lastfileinfo:=hp1.fileinfo;
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lastinfile:=infile;
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end;
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end;
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DoNotSplitLine:=false;
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case hp.typ of
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ait_comment:
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begin
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AsmWrite(target_asm.comment);
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AsmWritePChar(tai_comment(hp).str);
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AsmLn;
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end;
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ait_regalloc,
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ait_tempalloc:
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;
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ait_section:
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begin
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{if LasTSec<>sec_none then
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AsmWriteLn('_'+target_asm.secnames[LasTSec]+#9#9'ENDS');}
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if tai_section(hp).sec<>sec_none then
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begin
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AsmLn;
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AsmWriteLn(#9+target_asm.secnames[tai_section(hp).sec]);
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{$ifdef GDB}
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lastfileinfo.line:=-1;
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{$endif GDB}
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end;
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LasTSec:=tai_section(hp).sec;
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end;
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ait_align:
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begin
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case tai_align(hp).aligntype of
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1:AsmWriteLn(#9'align 0');
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2:AsmWriteLn(#9'align 1');
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4:AsmWriteLn(#9'align 2');
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otherwise internalerror(2002110302);
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end;
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end;
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ait_datablock:
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begin
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s:= tai_datablock(hp).sym.name;
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replaced:= ReplaceForbiddenChars(s);
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if tai_datablock(hp).is_global then
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if replaced then
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AsmWriteLn(#9'export'#9+s+'[RW] => '''+tai_datablock(hp).sym.name+'''')
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else
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AsmWriteLn(#9'export'#9+s+'[RW]');
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|
|
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if not macos_direct_globals then
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begin
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AsmWriteLn(#9'toc');
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AsmWriteLn(#9'tc'#9+s+'[TC], '+s+'[RW]');
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AsmWriteLn(#9'csect'#9+s+'[RW]');
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AsmWriteLn(#9'ds.b '+tostr(tai_datablock(hp).size));
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end
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else
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begin
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AsmWriteLn(#9'csect'#9+s+'[TC]');
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AsmWriteLn(PadTabs(s+':',#0)+'ds.b '+tostr(tai_datablock(hp).size));
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{TODO: ? PadTabs(s,#0) }
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end;
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end;
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ait_const_32bit,
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ait_const_8bit,
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ait_const_16bit :
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begin
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AsmWrite(ait_const2str[hp.typ]+tostr(tai_const(hp).value));
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consttyp:=hp.typ;
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l:=0;
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repeat
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found:=(not (tai(hp.next)=nil)) and (tai(hp.next).typ=consttyp);
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if found then
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begin
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hp:=tai(hp.next);
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s:=','+tostr(tai_const(hp).value);
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AsmWrite(s);
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inc(l,length(s));
|
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end;
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until (not found) or (l>line_length);
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AsmLn;
|
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end;
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|
ait_const_symbol:
|
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begin
|
|
(*
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AsmWriteLn(#9#9'dd'#9'offset '+tai_const_symbol(hp).sym.name);
|
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if tai_const_symbol(hp).offset>0 then
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AsmWrite('+'+tostr(tai_const_symbol(hp).offset))
|
|
else if tai_const_symbol(hp).offset<0 then
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AsmWrite(tostr(tai_const_symbol(hp).offset));
|
|
AsmLn;
|
|
*)
|
|
|
|
s:= tai_const_symbol(hp).sym.name;
|
|
ReplaceForbiddenChars(s);
|
|
|
|
|
|
if tai_const_symbol(hp).sym.typ = AT_FUNCTION then
|
|
begin
|
|
if use_PR then
|
|
AsmWriteLn(#9'dc.l'#9'.'+ s +'[PR]')
|
|
else
|
|
AsmWriteLn(#9'dc.l'#9 + s + '[DS]')
|
|
end
|
|
else
|
|
begin
|
|
if macos_direct_globals then
|
|
AsmWriteLn(#9'dc.l'#9+s)
|
|
else
|
|
AsmWriteLn(#9'dc.l'#9+s+const_storage_class);
|
|
end;
|
|
|
|
(* TODO: the following might need to be included. Temporaily we
|
|
generate an error
|
|
|
|
if tai_const_symbol(hp).offset>0 then
|
|
AsmWrite('+'+tostr(tai_const_symbol(hp).offset))
|
|
else if tai_const_symbol(hp).offset<0 then
|
|
AsmWrite(tostr(tai_const_symbol(hp).offset));
|
|
*)
|
|
|
|
if tai_const_symbol(hp).offset <> 0 then
|
|
InternalError(2002110101);
|
|
|
|
AsmLn;
|
|
end;
|
|
ait_real_32bit:
|
|
AsmWriteLn(#9'dc.l'#9'"'+single2str(tai_real_32bit(hp).value)+'"');
|
|
ait_real_64bit:
|
|
AsmWriteLn(#9'dc.d'#9'"'+double2str(tai_real_64bit(hp).value)+'"');
|
|
ait_string:
|
|
begin
|
|
{NOTE When a single quote char is encountered, it is
|
|
replaced with a numeric ascii value. It could also
|
|
have been replaced with the escape seq of double quotes.}
|
|
counter := 0;
|
|
lines := tai_string(hp).len div line_length;
|
|
{ separate lines in different parts }
|
|
if tai_string(hp).len > 0 then
|
|
Begin
|
|
for j := 0 to lines-1 do
|
|
begin
|
|
AsmWrite(#9'dc.b'#9);
|
|
quoted:=false;
|
|
for i:=counter to counter+line_length do
|
|
begin
|
|
{ it is an ascii character. }
|
|
if (ord(tai_string(hp).str[i])>31) and
|
|
(ord(tai_string(hp).str[i])<128) and
|
|
(tai_string(hp).str[i]<>'''') then
|
|
begin
|
|
if not(quoted) then
|
|
begin
|
|
if i>counter then
|
|
AsmWrite(',');
|
|
AsmWrite('''');
|
|
end;
|
|
AsmWrite(tai_string(hp).str[i]);
|
|
quoted:=true;
|
|
end { if > 31 and < 128 and ord('"') }
|
|
else
|
|
begin
|
|
if quoted then
|
|
AsmWrite('''');
|
|
if i>counter then
|
|
AsmWrite(',');
|
|
quoted:=false;
|
|
AsmWrite(tostr(ord(tai_string(hp).str[i])));
|
|
end;
|
|
end; { end for i:=0 to... }
|
|
if quoted then AsmWrite('''');
|
|
AsmWrite(target_info.newline);
|
|
counter := counter+line_length;
|
|
end; { end for j:=0 ... }
|
|
{ do last line of lines }
|
|
AsmWrite(#9'dc.b'#9);
|
|
quoted:=false;
|
|
for i:=counter to tai_string(hp).len-1 do
|
|
begin
|
|
{ it is an ascii character. }
|
|
if (ord(tai_string(hp).str[i])>31) and
|
|
(ord(tai_string(hp).str[i])<128) and
|
|
(tai_string(hp).str[i]<>'''') then
|
|
begin
|
|
if not(quoted) then
|
|
begin
|
|
if i>counter then
|
|
AsmWrite(',');
|
|
AsmWrite('''');
|
|
end;
|
|
AsmWrite(tai_string(hp).str[i]);
|
|
quoted:=true;
|
|
end { if > 31 and < 128 and " }
|
|
else
|
|
begin
|
|
if quoted then
|
|
AsmWrite('''');
|
|
if i>counter then
|
|
AsmWrite(',');
|
|
quoted:=false;
|
|
AsmWrite(tostr(ord(tai_string(hp).str[i])));
|
|
end;
|
|
end; { end for i:=0 to... }
|
|
if quoted then
|
|
AsmWrite('''');
|
|
end;
|
|
AsmLn;
|
|
end;
|
|
ait_label:
|
|
begin
|
|
if tai_label(hp).l.is_used then
|
|
begin
|
|
s:= tai_label(hp).l.name;
|
|
ReplaceForbiddenChars(s);
|
|
if s[1] = '@' then
|
|
AsmWriteLn(s+':')
|
|
else
|
|
begin
|
|
if not macos_direct_globals then
|
|
begin
|
|
AsmWriteLn(#9'toc');
|
|
AsmWriteLn(#9'tc'#9+s+'[TC], '+s+const_storage_class);
|
|
AsmWriteLn(#9'csect'#9+s+const_storage_class);
|
|
end
|
|
else
|
|
begin
|
|
AsmWriteLn(#9'csect'#9+s+'[TC]');
|
|
AsmWriteLn(PadTabs(s+':',#0));
|
|
end;
|
|
end;
|
|
end;
|
|
end;
|
|
ait_direct:
|
|
begin
|
|
AsmWritePChar(tai_direct(hp).str);
|
|
AsmLn;
|
|
end;
|
|
ait_symbol:
|
|
begin
|
|
if tai_symbol(hp).sym.typ=AT_FUNCTION then
|
|
GenProcedureHeader(hp)
|
|
else
|
|
begin
|
|
s:= tai_symbol(hp).sym.name;
|
|
replaced:= ReplaceForbiddenChars(s);
|
|
if tai_symbol(hp).is_global then
|
|
if replaced then
|
|
AsmWriteLn(#9'export'#9+s+'[RW] => '''+tai_symbol(hp).sym.name+'''')
|
|
else
|
|
AsmWriteLn(#9'export'#9+s+'[RW]');
|
|
|
|
|
|
if not macos_direct_globals then
|
|
begin
|
|
AsmWriteLn(#9'toc');
|
|
AsmWriteLn(#9'tc'#9+s+'[TC], '+s+ const_storage_class);
|
|
AsmWriteLn(#9'csect'#9+s+ const_storage_class);
|
|
end
|
|
else
|
|
begin
|
|
AsmWriteLn(#9'csect'#9+s+'[TC]');
|
|
AsmWriteLn(s+':');
|
|
end;
|
|
end;
|
|
end;
|
|
ait_symbol_end:
|
|
{$ifdef GDB}
|
|
if isInFunction then
|
|
if ((cs_debuginfo in aktmoduleswitches) or
|
|
(cs_gdb_lineinfo in aktglobalswitches)) then
|
|
begin
|
|
//info for debuggers:
|
|
AsmWriteLn(#9'endf ' + tostr(stabslastfileinfo.line));
|
|
isInFunction:= false;
|
|
end
|
|
{$endif GDB}
|
|
;
|
|
ait_instruction:
|
|
AsmWriteLn(GetInstruction(hp));
|
|
{$ifdef GDB}
|
|
ait_stabn: ;
|
|
ait_stabs: ;
|
|
|
|
ait_force_line :
|
|
stabslastfileinfo.line:=0;
|
|
|
|
ait_stab_function_name: ;
|
|
{$endif GDB}
|
|
ait_cut :
|
|
begin
|
|
{ only reset buffer if nothing has changed }
|
|
if AsmSize=AsmStartSize then
|
|
AsmClear
|
|
else
|
|
begin
|
|
{
|
|
if LasTSec<>sec_none then
|
|
AsmWriteLn('_'+target_asm.secnames[LasTSec]+#9#9'ends');
|
|
AsmLn;
|
|
}
|
|
AsmWriteLn(#9'end');
|
|
AsmClose;
|
|
DoAssemble;
|
|
AsmCreate(tai_cut(hp).place);
|
|
end;
|
|
{ avoid empty files }
|
|
while assigned(hp.next) and (tai(hp.next).typ in [ait_cut,ait_section,ait_comment]) do
|
|
begin
|
|
if tai(hp.next).typ=ait_section then
|
|
begin
|
|
lasTSec:=tai_section(hp.next).sec;
|
|
end;
|
|
hp:=tai(hp.next);
|
|
end;
|
|
WriteAsmFileHeader;
|
|
|
|
if lasTSec<>sec_none then
|
|
AsmWriteLn(#9+target_asm.secnames[lasTSec]);
|
|
{ AsmWriteLn('_'+target_asm.secnames[lasTSec]+#9#9+
|
|
'SEGMENT'#9'PARA PUBLIC USE32 '''+
|
|
target_asm.secnames[lasTSec]+'''');
|
|
}
|
|
AsmStartSize:=AsmSize;
|
|
end;
|
|
ait_marker :
|
|
begin
|
|
if tai_marker(hp).kind=InlineStart then
|
|
inc(InlineLevel)
|
|
else if tai_marker(hp).kind=InlineEnd then
|
|
dec(InlineLevel);
|
|
end;
|
|
else
|
|
internalerror(2002110303);
|
|
end;
|
|
hp:=tai(hp.next);
|
|
end;
|
|
end;
|
|
|
|
var
|
|
currentasmlist : TExternalAssembler;
|
|
|
|
procedure writeexternal(p:tnamedindexitem;arg:pointer);
|
|
|
|
var
|
|
s:string;
|
|
|
|
begin
|
|
if tasmsymbol(p).defbind=AB_EXTERNAL then
|
|
begin
|
|
//Writeln('ZZZ ',p.name,' ',p.classname,' ',Ord(tasmsymbol(p).typ));
|
|
s:= p.name;
|
|
case tasmsymbol(p).typ of
|
|
AT_FUNCTION:
|
|
begin
|
|
if ReplaceForbiddenChars(s) then
|
|
begin
|
|
if not use_PR then
|
|
currentasmlist.AsmWriteLn(#9'import'#9'.'+s+' <= ''.'+p.name+'''')
|
|
else
|
|
currentasmlist.AsmWriteLn(#9'import'#9'.'+s+'[PR] <= ''.'+p.name+'[PR]''');
|
|
currentasmlist.AsmWriteLn(#9'import'#9+s+'[DS] <= '''+p.name+'[DS]''');
|
|
end
|
|
else
|
|
begin
|
|
if not use_PR then
|
|
currentasmlist.AsmWriteLn(#9'import'#9'.'+s)
|
|
else
|
|
currentasmlist.AsmWriteLn(#9'import'#9'.'+s+'[PR]');
|
|
currentasmlist.AsmWriteLn(#9'import'#9+s+'[DS]');
|
|
end;
|
|
currentasmlist.AsmWriteLn(#9'toc');
|
|
currentasmlist.AsmWriteLn(#9'tc'#9+s+'[TC],'+s+'[DS]');
|
|
end
|
|
else
|
|
begin
|
|
if ReplaceForbiddenChars(s) then
|
|
currentasmlist.AsmWriteLn(#9'import'#9+s+'[RW] <= '''+p.name+'''')
|
|
else
|
|
currentasmlist.AsmWriteLn(#9'import'#9+s+'[RW]');
|
|
currentasmlist.AsmWriteLn(#9'toc');
|
|
currentasmlist.AsmWriteLn(#9'tc'#9+s+'[TC],'+s+'[RW]');
|
|
end;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
procedure TPPCMPWAssembler.WriteExternals;
|
|
begin
|
|
currentasmlist:=self;
|
|
objectlibrary.symbolsearch.foreach_static({$ifdef fpcprocvar}@{$endif}writeexternal,nil);
|
|
end;
|
|
|
|
|
|
function TPPCMPWAssembler.DoAssemble : boolean;
|
|
var f : file;
|
|
begin
|
|
DoAssemble:=Inherited DoAssemble;
|
|
(*
|
|
{ masm does not seem to recognize specific extensions and uses .obj allways PM }
|
|
if (aktoutputformat = as_i386_masm) then
|
|
begin
|
|
if not(cs_asm_extern in aktglobalswitches) then
|
|
begin
|
|
if Not FileExists(objfile) and
|
|
FileExists(ForceExtension(objfile,'.obj')) then
|
|
begin
|
|
Assign(F,ForceExtension(objfile,'.obj'));
|
|
Rename(F,objfile);
|
|
end;
|
|
end
|
|
else
|
|
AsmRes.AddAsmCommand('mv',ForceExtension(objfile,'.obj')+' '+objfile,objfile);
|
|
end;
|
|
*)
|
|
end;
|
|
|
|
procedure TPPCMPWAssembler.WriteAsmFileHeader;
|
|
|
|
begin
|
|
(*
|
|
AsmWriteLn(#9'.386p');
|
|
{ masm 6.11 does not seem to like LOCALS PM }
|
|
if (aktoutputformat = as_i386_tasm) then
|
|
begin
|
|
AsmWriteLn(#9'LOCALS '+target_asm.labelprefix);
|
|
end;
|
|
AsmWriteLn('DGROUP'#9'GROUP'#9'_BSS,_DATA');
|
|
AsmWriteLn(#9'ASSUME'#9'CS:_CODE,ES:DGROUP,DS:DGROUP,SS:DGROUP');
|
|
AsmLn;
|
|
*)
|
|
|
|
AsmWriteLn(#9'string asis'); {Interpret strings just to be the content between the quotes.}
|
|
AsmLn;
|
|
end;
|
|
|
|
procedure TPPCMPWAssembler.WriteAsmList;
|
|
|
|
|
|
{$ifdef GDB}
|
|
var
|
|
fileinfo : tfileposinfo;
|
|
{$endif GDB}
|
|
|
|
begin
|
|
{$ifdef EXTDEBUG}
|
|
if assigned(current_module.mainsource) then
|
|
comment(v_info,'Start writing MPW-styled assembler output for '+current_module.mainsource^);
|
|
{$endif}
|
|
LasTSec:=sec_none;
|
|
{$ifdef GDB}
|
|
FillChar(stabslastfileinfo,sizeof(stabslastfileinfo),0);
|
|
{$endif GDB}
|
|
{$ifdef GDB}
|
|
//n_line:=n_bssline;
|
|
funcname:=nil;
|
|
linecount:=1;
|
|
includecount:=0;
|
|
fileinfo.fileindex:=1;
|
|
fileinfo.line:=1;
|
|
|
|
isInFunction:= false;
|
|
firstLineInFunction:= 0;
|
|
|
|
{ Write main file }
|
|
WriteFileLineInfo(fileinfo);
|
|
|
|
{$endif GDB}
|
|
|
|
WriteAsmFileHeader;
|
|
WriteExternals;
|
|
|
|
{ PowerPC MPW ASM doesn't support stabs, as we now.
|
|
WriteTree(debuglist);}
|
|
|
|
WriteTree(codesegment);
|
|
WriteTree(datasegment);
|
|
WriteTree(consts);
|
|
WriteTree(rttilist);
|
|
WriteTree(resourcestringlist);
|
|
WriteTree(bsssegment);
|
|
{$ifdef GDB}
|
|
WriteFileEndInfo;
|
|
{$ENDIF}
|
|
|
|
AsmWriteLn(#9'end');
|
|
AsmLn;
|
|
|
|
{$ifdef EXTDEBUG}
|
|
if assigned(current_module.mainsource) then
|
|
comment(v_info,'Done writing MPW-styled assembler output for '+current_module.mainsource^);
|
|
{$endif EXTDEBUG}
|
|
end;
|
|
|
|
{*****************************************************************************
|
|
Initialize
|
|
*****************************************************************************}
|
|
|
|
const
|
|
as_powerpc_mpw_info : tasminfo =
|
|
(
|
|
id : as_powerpc_mpw;
|
|
idtxt : 'MPW';
|
|
asmbin : 'PPCAsm';
|
|
asmcmd : '';
|
|
supported_target : system_any; { what should I write here ?? }
|
|
outputbinary: false;
|
|
allowdirect : true;
|
|
needar : true;
|
|
labelprefix_only_inside_procedure : true;
|
|
labelprefix : '@';
|
|
comment : '; ';
|
|
secnames : ('',
|
|
'csect','csect [TC]','csect [TC]', {TODO: Perhaps use other section types.}
|
|
'','','','','','',
|
|
'','','')
|
|
);
|
|
|
|
initialization
|
|
RegisterAssembler(as_powerpc_mpw_info,TPPCMPWAssembler);
|
|
end.
|
|
{
|
|
$Log$
|
|
Revision 1.19 2003-04-06 21:01:40 olle
|
|
+ line numbers are now emitted in the assembler code
|
|
* bug in export and import directive fixed
|
|
* made code more in sync with aggas.pas
|
|
|
|
Revision 1.18 2003/01/13 17:17:50 olle
|
|
* changed global var access, TOC now contain pointers to globals
|
|
* fixed handling of function pointers
|
|
|
|
Revision 1.17 2003/01/08 18:43:57 daniel
|
|
* Tregister changed into a record
|
|
|
|
Revision 1.16 2002/11/28 10:56:07 olle
|
|
* changed proc ref from .xxx[PR] (refering to its section)
|
|
to .xxx (refering to its label) to allow for multiple ref to a proc.
|
|
|
|
Revision 1.15 2002/11/17 16:31:59 carl
|
|
* memory optimization (3-4%) : cleanup of tai fields,
|
|
cleanup of tdef and tsym fields.
|
|
* make it work for m68k
|
|
|
|
Revision 1.14 2002/11/07 15:50:23 jonas
|
|
* fixed bctr(l) problems
|
|
|
|
Revision 1.13 2002/11/04 18:24:53 olle
|
|
* globals are located in TOC and relative r2, instead of absolute
|
|
* symbols which only differs in case are treated as a single symbol
|
|
+ tai_const_symbol supported
|
|
* only refs_full accepted
|
|
|
|
Revision 1.12 2002/10/23 15:31:01 olle
|
|
* branch b does not jump to dotted symbol now
|
|
|
|
Revision 1.11 2002/10/19 23:52:40 olle
|
|
* import directive changed
|
|
|
|
Revision 1.10 2002/10/10 19:39:37 florian
|
|
* changes from Olle to get simple programs compiled and assembled
|
|
|
|
Revision 1.9 2002/10/07 21:19:53 florian
|
|
* more mpw fixes
|
|
|
|
Revision 1.8 2002/10/06 22:46:20 florian
|
|
* fixed function exporting
|
|
|
|
Revision 1.7 2002/10/02 22:14:15 florian
|
|
* improve function imports
|
|
|
|
Revision 1.6 2002/09/27 21:09:49 florian
|
|
+ readed because previous version was broken
|
|
|
|
Revision 1.2 2002/08/31 12:43:31 florian
|
|
* ppc compilation fixed
|
|
|
|
Revision 1.1 2002/08/20 21:40:44 florian
|
|
+ target macos for ppc added
|
|
+ frame work for mpw assembler output
|
|
}
|