|
@@ -0,0 +1,986 @@
|
|
|
+{
|
|
|
+ $Id$
|
|
|
+ Copyright (c) 1998-2002 by Carl Eric Codere and Peter Vreman
|
|
|
+
|
|
|
+ Does the parsing for the x86 GNU AS styled inline assembler.
|
|
|
+
|
|
|
+ This program is free software; you can redistribute it and/or modify
|
|
|
+ it under the terms of the GNU General Public License as published by
|
|
|
+ the Free Software Foundation; either version 2 of the License, or
|
|
|
+ (at your option) any later version.
|
|
|
+
|
|
|
+ This program is distributed in the hope that it will be useful,
|
|
|
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
+ GNU General Public License for more details.
|
|
|
+
|
|
|
+ You should have received a copy of the GNU General Public License
|
|
|
+ along with this program; if not, write to the Free Software
|
|
|
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
|
+
|
|
|
+ ****************************************************************************
|
|
|
+}
|
|
|
+Unit rax86att;
|
|
|
+
|
|
|
+{$i fpcdefs.inc}
|
|
|
+
|
|
|
+Interface
|
|
|
+
|
|
|
+ uses
|
|
|
+ cpubase,
|
|
|
+ raatt,rax86;
|
|
|
+
|
|
|
+ type
|
|
|
+ tx86attreader = class(tattreader)
|
|
|
+ ActOpsize : topsize;
|
|
|
+ function is_asmopcode(const s: string):boolean;override;
|
|
|
+ procedure handleopcode;override;
|
|
|
+ procedure BuildReference(oper : tx86operand);
|
|
|
+ procedure BuildOperand(oper : tx86operand);
|
|
|
+ procedure BuildOpCode(instr : tx86instruction);
|
|
|
+ procedure handlepercent;override;
|
|
|
+ end;
|
|
|
+
|
|
|
+
|
|
|
+Implementation
|
|
|
+
|
|
|
+ uses
|
|
|
+ { helpers }
|
|
|
+ cutils,
|
|
|
+ { global }
|
|
|
+ globtype,globals,verbose,
|
|
|
+ systems,
|
|
|
+ { aasm }
|
|
|
+ cpuinfo,aasmbase,aasmtai,aasmcpu,
|
|
|
+ { symtable }
|
|
|
+ symconst,symbase,symtype,symsym,symtable,
|
|
|
+ { parser }
|
|
|
+ scanner,
|
|
|
+ procinfo,
|
|
|
+ itcpugas,
|
|
|
+ rabase,rautils,
|
|
|
+ cgbase,cgobj
|
|
|
+ ;
|
|
|
+
|
|
|
+ procedure tx86attreader.handlepercent;
|
|
|
+ var
|
|
|
+ len : longint;
|
|
|
+ begin
|
|
|
+ len:=1;
|
|
|
+ actasmpattern[len]:='%';
|
|
|
+ c:=current_scanner.asmgetchar;
|
|
|
+ { to be a register there must be a letter and not a number }
|
|
|
+ if c in ['0'..'9'] then
|
|
|
+ begin
|
|
|
+ actasmtoken:=AS_MOD;
|
|
|
+ end
|
|
|
+ else
|
|
|
+ begin
|
|
|
+ while c in ['a'..'z','A'..'Z','0'..'9'] do
|
|
|
+ Begin
|
|
|
+ inc(len);
|
|
|
+ actasmpattern[len]:=c;
|
|
|
+ c:=current_scanner.asmgetchar;
|
|
|
+ end;
|
|
|
+ actasmpattern[0]:=chr(len);
|
|
|
+ uppervar(actasmpattern);
|
|
|
+ if (actasmpattern = '%ST') and (c='(') then
|
|
|
+ Begin
|
|
|
+ actasmpattern:=actasmpattern+c;
|
|
|
+ c:=current_scanner.asmgetchar;
|
|
|
+ if c in ['0'..'9'] then
|
|
|
+ actasmpattern:=actasmpattern + c
|
|
|
+ else
|
|
|
+ Message(asmr_e_invalid_fpu_register);
|
|
|
+ c:=current_scanner.asmgetchar;
|
|
|
+ if c <> ')' then
|
|
|
+ Message(asmr_e_invalid_fpu_register)
|
|
|
+ else
|
|
|
+ Begin
|
|
|
+ actasmpattern:=actasmpattern + c;
|
|
|
+ c:=current_scanner.asmgetchar; { let us point to next character. }
|
|
|
+ end;
|
|
|
+ end;
|
|
|
+ if is_register(actasmpattern) then
|
|
|
+ exit;
|
|
|
+ Message(asmr_e_invalid_register);
|
|
|
+ actasmtoken:=raatt.AS_NONE;
|
|
|
+ end;
|
|
|
+ end;
|
|
|
+
|
|
|
+
|
|
|
+ Procedure tx86attreader.BuildReference(oper : tx86operand);
|
|
|
+
|
|
|
+ procedure Consume_RParen;
|
|
|
+ begin
|
|
|
+ if actasmtoken <> AS_RPAREN then
|
|
|
+ Begin
|
|
|
+ Message(asmr_e_invalid_reference_syntax);
|
|
|
+ RecoverConsume(true);
|
|
|
+ end
|
|
|
+ else
|
|
|
+ begin
|
|
|
+ Consume(AS_RPAREN);
|
|
|
+ if not (actasmtoken in [AS_COMMA,AS_SEPARATOR,AS_END]) then
|
|
|
+ Begin
|
|
|
+ Message(asmr_e_invalid_reference_syntax);
|
|
|
+ RecoverConsume(true);
|
|
|
+ end;
|
|
|
+ end;
|
|
|
+ end;
|
|
|
+
|
|
|
+
|
|
|
+ procedure Consume_Scale;
|
|
|
+ var
|
|
|
+ l : longint;
|
|
|
+ begin
|
|
|
+ { we have to process the scaling }
|
|
|
+ l:=BuildConstExpression(false,true);
|
|
|
+ if ((l = 2) or (l = 4) or (l = 8) or (l = 1)) then
|
|
|
+ oper.opr.ref.scalefactor:=l
|
|
|
+ else
|
|
|
+ Begin
|
|
|
+ Message(asmr_e_wrong_scale_factor);
|
|
|
+ oper.opr.ref.scalefactor:=0;
|
|
|
+ end;
|
|
|
+ end;
|
|
|
+
|
|
|
+
|
|
|
+ begin
|
|
|
+ oper.InitRef;
|
|
|
+ Consume(AS_LPAREN);
|
|
|
+ Case actasmtoken of
|
|
|
+ AS_INTNUM,
|
|
|
+ AS_MINUS,
|
|
|
+ AS_PLUS: { absolute offset, such as fs:(0x046c) }
|
|
|
+ Begin
|
|
|
+ { offset(offset) is invalid }
|
|
|
+ If oper.opr.Ref.Offset <> 0 Then
|
|
|
+ Begin
|
|
|
+ Message(asmr_e_invalid_reference_syntax);
|
|
|
+ RecoverConsume(true);
|
|
|
+ End
|
|
|
+ Else
|
|
|
+ Begin
|
|
|
+ oper.opr.Ref.Offset:=BuildConstExpression(false,true);
|
|
|
+ Consume_RParen;
|
|
|
+ end;
|
|
|
+ exit;
|
|
|
+ End;
|
|
|
+ AS_REGISTER: { (reg ... }
|
|
|
+ Begin
|
|
|
+ { Check if there is already a base (mostly ebp,esp) than this is
|
|
|
+ not allowed, because it will give crashing code }
|
|
|
+ if ((oper.opr.typ=OPR_REFERENCE) and (oper.opr.ref.base<>NR_NO)) or
|
|
|
+ ((oper.opr.typ=OPR_LOCAL) and (oper.opr.localsym.localloc.loc<>LOC_REGISTER)) then
|
|
|
+ message(asmr_e_cannot_index_relative_var);
|
|
|
+ oper.opr.ref.base:=actasmregister;
|
|
|
+ Consume(AS_REGISTER);
|
|
|
+ { can either be a register or a right parenthesis }
|
|
|
+ { (reg) }
|
|
|
+ if actasmtoken=AS_RPAREN then
|
|
|
+ Begin
|
|
|
+ Consume_RParen;
|
|
|
+ exit;
|
|
|
+ end;
|
|
|
+ { (reg,reg .. }
|
|
|
+ Consume(AS_COMMA);
|
|
|
+ if actasmtoken=AS_REGISTER then
|
|
|
+ Begin
|
|
|
+ oper.opr.ref.index:=actasmregister;
|
|
|
+ Consume(AS_REGISTER);
|
|
|
+ { check for scaling ... }
|
|
|
+ case actasmtoken of
|
|
|
+ AS_RPAREN:
|
|
|
+ Begin
|
|
|
+ Consume_RParen;
|
|
|
+ exit;
|
|
|
+ end;
|
|
|
+ AS_COMMA:
|
|
|
+ Begin
|
|
|
+ Consume(AS_COMMA);
|
|
|
+ Consume_Scale;
|
|
|
+ Consume_RParen;
|
|
|
+ end;
|
|
|
+ else
|
|
|
+ Begin
|
|
|
+ Message(asmr_e_invalid_reference_syntax);
|
|
|
+ RecoverConsume(false);
|
|
|
+ end;
|
|
|
+ end; { end case }
|
|
|
+ end
|
|
|
+ else
|
|
|
+ Begin
|
|
|
+ Message(asmr_e_invalid_reference_syntax);
|
|
|
+ RecoverConsume(false);
|
|
|
+ end;
|
|
|
+ end; {end case }
|
|
|
+ AS_COMMA: { (, ... can either be scaling, or index }
|
|
|
+ Begin
|
|
|
+ Consume(AS_COMMA);
|
|
|
+ { Index }
|
|
|
+ if (actasmtoken=AS_REGISTER) then
|
|
|
+ Begin
|
|
|
+ oper.opr.ref.index:=actasmregister;
|
|
|
+ Consume(AS_REGISTER);
|
|
|
+ { check for scaling ... }
|
|
|
+ case actasmtoken of
|
|
|
+ AS_RPAREN:
|
|
|
+ Begin
|
|
|
+ Consume_RParen;
|
|
|
+ exit;
|
|
|
+ end;
|
|
|
+ AS_COMMA:
|
|
|
+ Begin
|
|
|
+ Consume(AS_COMMA);
|
|
|
+ Consume_Scale;
|
|
|
+ Consume_RParen;
|
|
|
+ end;
|
|
|
+ else
|
|
|
+ Begin
|
|
|
+ Message(asmr_e_invalid_reference_syntax);
|
|
|
+ RecoverConsume(false);
|
|
|
+ end;
|
|
|
+ end; {end case }
|
|
|
+ end
|
|
|
+ { Scaling }
|
|
|
+ else
|
|
|
+ Begin
|
|
|
+ Consume_Scale;
|
|
|
+ Consume_RParen;
|
|
|
+ exit;
|
|
|
+ end;
|
|
|
+ end;
|
|
|
+ else
|
|
|
+ Begin
|
|
|
+ Message(asmr_e_invalid_reference_syntax);
|
|
|
+ RecoverConsume(false);
|
|
|
+ end;
|
|
|
+ end;
|
|
|
+ end;
|
|
|
+
|
|
|
+
|
|
|
+ Procedure tx86attreader.BuildOperand(oper : tx86operand);
|
|
|
+ var
|
|
|
+ tempstr,
|
|
|
+ expr : string;
|
|
|
+ typesize,
|
|
|
+ l,k : longint;
|
|
|
+
|
|
|
+
|
|
|
+ procedure AddLabelOperand(hl:tasmlabel);
|
|
|
+ begin
|
|
|
+ if not(actasmtoken in [AS_PLUS,AS_MINUS,AS_LPAREN]) and
|
|
|
+ is_calljmp(actopcode) then
|
|
|
+ begin
|
|
|
+ oper.opr.typ:=OPR_SYMBOL;
|
|
|
+ oper.opr.symbol:=hl;
|
|
|
+ end
|
|
|
+ else
|
|
|
+ begin
|
|
|
+ oper.InitRef;
|
|
|
+ oper.opr.ref.symbol:=hl;
|
|
|
+ end;
|
|
|
+ end;
|
|
|
+
|
|
|
+
|
|
|
+ procedure MaybeRecordOffset;
|
|
|
+ var
|
|
|
+ hasdot : boolean;
|
|
|
+ l,
|
|
|
+ toffset,
|
|
|
+ tsize : longint;
|
|
|
+ begin
|
|
|
+ if not(actasmtoken in [AS_DOT,AS_PLUS,AS_MINUS]) then
|
|
|
+ exit;
|
|
|
+ l:=0;
|
|
|
+ hasdot:=(actasmtoken=AS_DOT);
|
|
|
+ if hasdot then
|
|
|
+ begin
|
|
|
+ if expr<>'' then
|
|
|
+ begin
|
|
|
+ BuildRecordOffsetSize(expr,toffset,tsize);
|
|
|
+ inc(l,toffset);
|
|
|
+ oper.SetSize(tsize,true);
|
|
|
+ end;
|
|
|
+ end;
|
|
|
+ if actasmtoken in [AS_PLUS,AS_MINUS] then
|
|
|
+ inc(l,BuildConstExpression(true,false));
|
|
|
+ case oper.opr.typ of
|
|
|
+ OPR_LOCAL :
|
|
|
+ begin
|
|
|
+ { don't allow direct access to fields of parameters, because that
|
|
|
+ will generate buggy code. Allow it only for explicit typecasting }
|
|
|
+ if hasdot and
|
|
|
+ (not oper.hastype) and
|
|
|
+ (tvarsym(oper.opr.localsym).owner.symtabletype=parasymtable) and
|
|
|
+ (current_procinfo.procdef.proccalloption<>pocall_register) then
|
|
|
+ Message(asmr_e_cannot_access_field_directly_for_parameters);
|
|
|
+ inc(oper.opr.localsymofs,l)
|
|
|
+ end;
|
|
|
+ OPR_CONSTANT :
|
|
|
+ inc(oper.opr.val,l);
|
|
|
+ OPR_REFERENCE :
|
|
|
+ inc(oper.opr.ref.offset,l);
|
|
|
+ else
|
|
|
+ internalerror(200309221);
|
|
|
+ end;
|
|
|
+ end;
|
|
|
+
|
|
|
+
|
|
|
+ function MaybeBuildReference:boolean;
|
|
|
+ { Try to create a reference, if not a reference is found then false
|
|
|
+ is returned }
|
|
|
+ begin
|
|
|
+ MaybeBuildReference:=true;
|
|
|
+ case actasmtoken of
|
|
|
+ AS_INTNUM,
|
|
|
+ AS_MINUS,
|
|
|
+ AS_PLUS:
|
|
|
+ Begin
|
|
|
+ oper.opr.ref.offset:=BuildConstExpression(True,False);
|
|
|
+ if actasmtoken<>AS_LPAREN then
|
|
|
+ Message(asmr_e_invalid_reference_syntax)
|
|
|
+ else
|
|
|
+ BuildReference(oper);
|
|
|
+ end;
|
|
|
+ AS_LPAREN:
|
|
|
+ BuildReference(oper);
|
|
|
+ AS_ID: { only a variable is allowed ... }
|
|
|
+ Begin
|
|
|
+ tempstr:=actasmpattern;
|
|
|
+ Consume(AS_ID);
|
|
|
+ { typecasting? }
|
|
|
+ if (actasmtoken=AS_LPAREN) and
|
|
|
+ SearchType(tempstr,typesize) then
|
|
|
+ begin
|
|
|
+ oper.hastype:=true;
|
|
|
+ Consume(AS_LPAREN);
|
|
|
+ BuildOperand(oper);
|
|
|
+ Consume(AS_RPAREN);
|
|
|
+ if oper.opr.typ in [OPR_REFERENCE,OPR_LOCAL] then
|
|
|
+ oper.SetSize(typesize,true);
|
|
|
+ end
|
|
|
+ else
|
|
|
+ if not oper.SetupVar(tempstr,false) then
|
|
|
+ Message1(sym_e_unknown_id,tempstr);
|
|
|
+ { record.field ? }
|
|
|
+ if actasmtoken=AS_DOT then
|
|
|
+ begin
|
|
|
+ BuildRecordOffsetSize(tempstr,l,k);
|
|
|
+ inc(oper.opr.ref.offset,l);
|
|
|
+ end;
|
|
|
+ case actasmtoken of
|
|
|
+ AS_END,
|
|
|
+ AS_SEPARATOR,
|
|
|
+ AS_COMMA: ;
|
|
|
+ AS_LPAREN:
|
|
|
+ BuildReference(oper);
|
|
|
+ else
|
|
|
+ Begin
|
|
|
+ Message(asmr_e_invalid_reference_syntax);
|
|
|
+ Consume(actasmtoken);
|
|
|
+ end;
|
|
|
+ end; {end case }
|
|
|
+ end;
|
|
|
+ else
|
|
|
+ MaybeBuildReference:=false;
|
|
|
+ end; { end case }
|
|
|
+ end;
|
|
|
+
|
|
|
+
|
|
|
+ const
|
|
|
+ regsize_2_size: array[S_B..S_L] of longint = (1,2,4);
|
|
|
+ var
|
|
|
+ tempreg : tregister;
|
|
|
+ hl : tasmlabel;
|
|
|
+ Begin
|
|
|
+ expr:='';
|
|
|
+ case actasmtoken of
|
|
|
+ AS_LPAREN: { Memory reference or constant expression }
|
|
|
+ Begin
|
|
|
+ oper.InitRef;
|
|
|
+ BuildReference(oper);
|
|
|
+ end;
|
|
|
+
|
|
|
+ AS_DOLLAR: { Constant expression }
|
|
|
+ Begin
|
|
|
+ Consume(AS_DOLLAR);
|
|
|
+ BuildConstantOperand(oper);
|
|
|
+ end;
|
|
|
+
|
|
|
+ AS_INTNUM,
|
|
|
+ AS_MINUS,
|
|
|
+ AS_PLUS:
|
|
|
+ Begin
|
|
|
+ { Constant memory offset }
|
|
|
+ { This must absolutely be followed by ( }
|
|
|
+ oper.InitRef;
|
|
|
+ oper.opr.ref.offset:=BuildConstExpression(True,False);
|
|
|
+ if actasmtoken<>AS_LPAREN then
|
|
|
+ Message(asmr_e_invalid_reference_syntax)
|
|
|
+ else
|
|
|
+ BuildReference(oper);
|
|
|
+ end;
|
|
|
+
|
|
|
+ AS_STAR: { Call from memory address }
|
|
|
+ Begin
|
|
|
+ Consume(AS_STAR);
|
|
|
+ if actasmtoken=AS_REGISTER then
|
|
|
+ begin
|
|
|
+ oper.opr.typ:=OPR_REGISTER;
|
|
|
+ oper.opr.reg:=actasmregister;
|
|
|
+ oper.SetSize(regsize_2_size[reg2opsize(actasmregister)],true);
|
|
|
+ Consume(AS_REGISTER);
|
|
|
+ end
|
|
|
+ else
|
|
|
+ begin
|
|
|
+ oper.InitRef;
|
|
|
+ if not MaybeBuildReference then
|
|
|
+ Message(asmr_e_syn_operand);
|
|
|
+ end;
|
|
|
+ { this is only allowed for call's and jmp's }
|
|
|
+ if not is_calljmp(actopcode) then
|
|
|
+ Message(asmr_e_syn_operand);
|
|
|
+ end;
|
|
|
+
|
|
|
+ AS_ID: { A constant expression, or a Variable ref. }
|
|
|
+ Begin
|
|
|
+ { Local Label ? }
|
|
|
+ if is_locallabel(actasmpattern) then
|
|
|
+ begin
|
|
|
+ CreateLocalLabel(actasmpattern,hl,false);
|
|
|
+ Consume(AS_ID);
|
|
|
+ AddLabelOperand(hl);
|
|
|
+ end
|
|
|
+ else
|
|
|
+ { Check for label }
|
|
|
+ if SearchLabel(actasmpattern,hl,false) then
|
|
|
+ begin
|
|
|
+ Consume(AS_ID);
|
|
|
+ AddLabelOperand(hl);
|
|
|
+ end
|
|
|
+ else
|
|
|
+ { probably a variable or normal expression }
|
|
|
+ { or a procedure (such as in CALL ID) }
|
|
|
+ Begin
|
|
|
+ { is it a constant ? }
|
|
|
+ if SearchIConstant(actasmpattern,l) then
|
|
|
+ Begin
|
|
|
+ if not (oper.opr.typ in [OPR_NONE,OPR_CONSTANT]) then
|
|
|
+ Message(asmr_e_invalid_operand_type);
|
|
|
+ BuildConstantOperand(oper);
|
|
|
+ end
|
|
|
+ else
|
|
|
+ begin
|
|
|
+ expr:=actasmpattern;
|
|
|
+ Consume(AS_ID);
|
|
|
+ { typecasting? }
|
|
|
+ if (actasmtoken=AS_LPAREN) and
|
|
|
+ SearchType(expr,typesize) then
|
|
|
+ begin
|
|
|
+ oper.hastype:=true;
|
|
|
+ Consume(AS_LPAREN);
|
|
|
+ BuildOperand(oper);
|
|
|
+ Consume(AS_RPAREN);
|
|
|
+ if oper.opr.typ in [OPR_REFERENCE,OPR_LOCAL] then
|
|
|
+ oper.SetSize(typesize,true);
|
|
|
+ end
|
|
|
+ else
|
|
|
+ begin
|
|
|
+ if oper.SetupVar(expr,false) then
|
|
|
+ begin
|
|
|
+ end
|
|
|
+ else
|
|
|
+ Begin
|
|
|
+ { look for special symbols ... }
|
|
|
+ if expr= '__HIGH' then
|
|
|
+ begin
|
|
|
+ consume(AS_LPAREN);
|
|
|
+ if not oper.setupvar('high'+actasmpattern,false) then
|
|
|
+ Message1(sym_e_unknown_id,'high'+actasmpattern);
|
|
|
+ consume(AS_ID);
|
|
|
+ consume(AS_RPAREN);
|
|
|
+ end
|
|
|
+ else
|
|
|
+ if expr = '__RESULT' then
|
|
|
+ oper.SetUpResult
|
|
|
+ else
|
|
|
+ if expr = '__SELF' then
|
|
|
+ oper.SetupSelf
|
|
|
+ else
|
|
|
+ if expr = '__OLDEBP' then
|
|
|
+ oper.SetupOldEBP
|
|
|
+ else
|
|
|
+ { check for direct symbolic names }
|
|
|
+ { only if compiling the system unit }
|
|
|
+ if (cs_compilesystem in aktmoduleswitches) then
|
|
|
+ begin
|
|
|
+ if not oper.SetupDirectVar(expr) then
|
|
|
+ Begin
|
|
|
+ { not found, finally ... add it anyways ... }
|
|
|
+ Message1(asmr_w_id_supposed_external,expr);
|
|
|
+ oper.InitRef;
|
|
|
+ oper.opr.ref.symbol:=objectlibrary.newasmsymbol(expr);
|
|
|
+ end;
|
|
|
+ end
|
|
|
+ else
|
|
|
+ Message1(sym_e_unknown_id,expr);
|
|
|
+ end;
|
|
|
+ end;
|
|
|
+ end;
|
|
|
+ if actasmtoken=AS_DOT then
|
|
|
+ MaybeRecordOffset;
|
|
|
+ { add a constant expression? }
|
|
|
+ if (actasmtoken=AS_PLUS) then
|
|
|
+ begin
|
|
|
+ l:=BuildConstExpression(true,false);
|
|
|
+ case oper.opr.typ of
|
|
|
+ OPR_CONSTANT :
|
|
|
+ inc(oper.opr.val,l);
|
|
|
+ OPR_LOCAL :
|
|
|
+ inc(oper.opr.localsymofs,l);
|
|
|
+ OPR_REFERENCE :
|
|
|
+ inc(oper.opr.ref.offset,l);
|
|
|
+ else
|
|
|
+ internalerror(200309202);
|
|
|
+ end;
|
|
|
+ end
|
|
|
+ end;
|
|
|
+ { Do we have a indexing reference, then parse it also }
|
|
|
+ if actasmtoken=AS_LPAREN then
|
|
|
+ BuildReference(oper);
|
|
|
+ end;
|
|
|
+
|
|
|
+ AS_REGISTER: { Register, a variable reference or a constant reference }
|
|
|
+ Begin
|
|
|
+ { save the type of register used. }
|
|
|
+ tempreg:=actasmregister;
|
|
|
+ Consume(AS_REGISTER);
|
|
|
+ if actasmtoken = AS_COLON then
|
|
|
+ Begin
|
|
|
+ Consume(AS_COLON);
|
|
|
+ oper.InitRef;
|
|
|
+ oper.opr.ref.segment:=tempreg;
|
|
|
+ { This must absolutely be followed by a reference }
|
|
|
+ if not MaybeBuildReference then
|
|
|
+ Begin
|
|
|
+ Message(asmr_e_invalid_seg_override);
|
|
|
+ Consume(actasmtoken);
|
|
|
+ end;
|
|
|
+ end
|
|
|
+ { Simple register }
|
|
|
+ else if (actasmtoken in [AS_END,AS_SEPARATOR,AS_COMMA]) then
|
|
|
+ Begin
|
|
|
+ if not (oper.opr.typ in [OPR_NONE,OPR_REGISTER]) then
|
|
|
+ Message(asmr_e_invalid_operand_type);
|
|
|
+ oper.opr.typ:=OPR_REGISTER;
|
|
|
+ oper.opr.reg:=tempreg;
|
|
|
+ oper.SetSize(tcgsize2size[cg.reg_cgsize(oper.opr.reg)],true);
|
|
|
+ end
|
|
|
+ else
|
|
|
+ Message(asmr_e_syn_operand);
|
|
|
+ end;
|
|
|
+ AS_END,
|
|
|
+ AS_SEPARATOR,
|
|
|
+ AS_COMMA: ;
|
|
|
+ else
|
|
|
+ Begin
|
|
|
+ Message(asmr_e_syn_operand);
|
|
|
+ Consume(actasmtoken);
|
|
|
+ end;
|
|
|
+ end; { end case }
|
|
|
+ end;
|
|
|
+
|
|
|
+
|
|
|
+ procedure tx86attreader.BuildOpCode(instr : tx86instruction);
|
|
|
+ var
|
|
|
+ operandnum : longint;
|
|
|
+ PrefixOp,OverrideOp: tasmop;
|
|
|
+ Begin
|
|
|
+ PrefixOp:=A_None;
|
|
|
+ OverrideOp:=A_None;
|
|
|
+ { prefix seg opcode / prefix opcode }
|
|
|
+ repeat
|
|
|
+ if is_prefix(actopcode) then
|
|
|
+ begin
|
|
|
+ PrefixOp:=ActOpcode;
|
|
|
+ with instr do
|
|
|
+ begin
|
|
|
+ opcode:=ActOpcode;
|
|
|
+ condition:=ActCondition;
|
|
|
+ opsize:=ActOpsize;
|
|
|
+ ConcatInstruction(curlist);
|
|
|
+ end;
|
|
|
+ Consume(AS_OPCODE);
|
|
|
+ end
|
|
|
+ else
|
|
|
+ if is_override(actopcode) then
|
|
|
+ begin
|
|
|
+ OverrideOp:=ActOpcode;
|
|
|
+ with instr do
|
|
|
+ begin
|
|
|
+ opcode:=ActOpcode;
|
|
|
+ condition:=ActCondition;
|
|
|
+ opsize:=ActOpsize;
|
|
|
+ ConcatInstruction(curlist);
|
|
|
+ end;
|
|
|
+ Consume(AS_OPCODE);
|
|
|
+ end
|
|
|
+ else
|
|
|
+ break;
|
|
|
+ { allow for newline as in gas styled syntax }
|
|
|
+ while actasmtoken=AS_SEPARATOR do
|
|
|
+ Consume(AS_SEPARATOR);
|
|
|
+ until (actasmtoken<>AS_OPCODE);
|
|
|
+ { opcode }
|
|
|
+ if (actasmtoken<>AS_OPCODE) then
|
|
|
+ Begin
|
|
|
+ Message(asmr_e_invalid_or_missing_opcode);
|
|
|
+ RecoverConsume(true);
|
|
|
+ exit;
|
|
|
+ end;
|
|
|
+ { Fill the instr object with the current state }
|
|
|
+ with instr do
|
|
|
+ begin
|
|
|
+ Opcode:=ActOpcode;
|
|
|
+ condition:=ActCondition;
|
|
|
+ opsize:=ActOpsize;
|
|
|
+ end;
|
|
|
+
|
|
|
+ { Valid combination of prefix/override and instruction ? }
|
|
|
+
|
|
|
+ if (prefixop<>A_NONE) and (NOT CheckPrefix(PrefixOp,actopcode)) then
|
|
|
+ Message1(asmr_e_invalid_prefix_and_opcode,actasmpattern);
|
|
|
+
|
|
|
+ if (overrideop<>A_NONE) and (NOT CheckOverride(OverrideOp,ActOpcode)) then
|
|
|
+ Message1(asmr_e_invalid_override_and_opcode,actasmpattern);
|
|
|
+ { We are reading operands, so opcode will be an AS_ID }
|
|
|
+ operandnum:=1;
|
|
|
+ Consume(AS_OPCODE);
|
|
|
+ { Zero operand opcode ? }
|
|
|
+ if actasmtoken in [AS_SEPARATOR,AS_END] then
|
|
|
+ begin
|
|
|
+ operandnum:=0;
|
|
|
+ exit;
|
|
|
+ end;
|
|
|
+ { Read the operands }
|
|
|
+ repeat
|
|
|
+ case actasmtoken of
|
|
|
+ AS_COMMA: { Operand delimiter }
|
|
|
+ Begin
|
|
|
+ if operandnum > Max_Operands then
|
|
|
+ Message(asmr_e_too_many_operands)
|
|
|
+ else
|
|
|
+ Inc(operandnum);
|
|
|
+ Consume(AS_COMMA);
|
|
|
+ end;
|
|
|
+ AS_SEPARATOR,
|
|
|
+ AS_END : { End of asm operands for this opcode }
|
|
|
+ begin
|
|
|
+ break;
|
|
|
+ end;
|
|
|
+ else
|
|
|
+ BuildOperand(instr.Operands[operandnum] as tx86operand);
|
|
|
+ end; { end case }
|
|
|
+ until false;
|
|
|
+ instr.Ops:=operandnum;
|
|
|
+ end;
|
|
|
+
|
|
|
+
|
|
|
+ function tx86attreader.is_asmopcode(const s: string):boolean;
|
|
|
+ const
|
|
|
+ { We need first to check the long prefixes, else we get probs
|
|
|
+ with things like movsbl }
|
|
|
+ att_sizesuffixstr : array[0..9] of string[2] = (
|
|
|
+ '','BW','BL','WL','B','W','L','S','Q','T'
|
|
|
+ );
|
|
|
+ att_sizesuffix : array[0..9] of topsize = (
|
|
|
+ S_NO,S_BW,S_BL,S_WL,S_B,S_W,S_L,S_FS,S_IQ,S_FX
|
|
|
+ );
|
|
|
+ att_sizefpusuffix : array[0..9] of topsize = (
|
|
|
+ S_NO,S_NO,S_NO,S_NO,S_NO,S_NO,S_FL,S_FS,S_IQ,S_FX
|
|
|
+ );
|
|
|
+ att_sizefpuintsuffix : array[0..9] of topsize = (
|
|
|
+ S_NO,S_NO,S_NO,S_NO,S_NO,S_NO,S_IL,S_IS,S_IQ,S_NO
|
|
|
+ );
|
|
|
+ var
|
|
|
+ str2opentry: tstr2opentry;
|
|
|
+ cond : string[4];
|
|
|
+ cnd : tasmcond;
|
|
|
+ len,
|
|
|
+ j,
|
|
|
+ sufidx : longint;
|
|
|
+ Begin
|
|
|
+ is_asmopcode:=FALSE;
|
|
|
+
|
|
|
+ actopcode:=A_None;
|
|
|
+ actcondition:=C_None;
|
|
|
+ actopsize:=S_NO;
|
|
|
+
|
|
|
+ { search for all possible suffixes }
|
|
|
+ for sufidx:=low(att_sizesuffixstr) to high(att_sizesuffixstr) do
|
|
|
+ begin
|
|
|
+ len:=length(s)-length(att_sizesuffixstr[sufidx]);
|
|
|
+ if copy(s,len+1,length(att_sizesuffixstr[sufidx]))=att_sizesuffixstr[sufidx] then
|
|
|
+ begin
|
|
|
+ { here we search the entire table... }
|
|
|
+ str2opentry:=nil;
|
|
|
+ if {(length(s)>0) and} (len>0) then
|
|
|
+ str2opentry:=tstr2opentry(iasmops.search(copy(s,1,len)));
|
|
|
+ if assigned(str2opentry) then
|
|
|
+ begin
|
|
|
+ actopcode:=str2opentry.op;
|
|
|
+ if gas_needsuffix[actopcode]=attsufFPU then
|
|
|
+ actopsize:=att_sizefpusuffix[sufidx]
|
|
|
+ else if gas_needsuffix[actopcode]=attsufFPUint then
|
|
|
+ actopsize:=att_sizefpuintsuffix[sufidx]
|
|
|
+ else
|
|
|
+ actopsize:=att_sizesuffix[sufidx];
|
|
|
+ actasmtoken:=AS_OPCODE;
|
|
|
+ is_asmopcode:=TRUE;
|
|
|
+ exit;
|
|
|
+ end;
|
|
|
+ { not found, check condition opcodes }
|
|
|
+ j:=0;
|
|
|
+ while (j<CondAsmOps) do
|
|
|
+ begin
|
|
|
+ if Copy(s,1,Length(CondAsmOpStr[j]))=CondAsmOpStr[j] then
|
|
|
+ begin
|
|
|
+ cond:=Copy(s,Length(CondAsmOpStr[j])+1,len-Length(CondAsmOpStr[j]));
|
|
|
+ if cond<>'' then
|
|
|
+ begin
|
|
|
+ for cnd:=low(TasmCond) to high(TasmCond) do
|
|
|
+ if Cond=Upper(cond2str[cnd]) then
|
|
|
+ begin
|
|
|
+ actopcode:=CondASmOp[j];
|
|
|
+ if gas_needsuffix[actopcode]=attsufFPU then
|
|
|
+ actopsize:=att_sizefpusuffix[sufidx]
|
|
|
+ else if gas_needsuffix[actopcode]=attsufFPUint then
|
|
|
+ actopsize:=att_sizefpuintsuffix[sufidx]
|
|
|
+ else
|
|
|
+ actopsize:=att_sizesuffix[sufidx];
|
|
|
+ actcondition:=cnd;
|
|
|
+ actasmtoken:=AS_OPCODE;
|
|
|
+ is_asmopcode:=TRUE;
|
|
|
+ exit;
|
|
|
+ end;
|
|
|
+ end;
|
|
|
+ end;
|
|
|
+ inc(j);
|
|
|
+ end;
|
|
|
+ end;
|
|
|
+ end;
|
|
|
+ end;
|
|
|
+
|
|
|
+
|
|
|
+ procedure tx86attreader.handleopcode;
|
|
|
+ var
|
|
|
+ instr : Tx86Instruction;
|
|
|
+ begin
|
|
|
+ instr:=Tx86Instruction.Create(Tx86Operand);
|
|
|
+ instr.OpOrder:=op_att;
|
|
|
+ BuildOpcode(instr);
|
|
|
+ instr.AddReferenceSizes;
|
|
|
+ instr.SetInstructionOpsize;
|
|
|
+ instr.CheckOperandSizes;
|
|
|
+ instr.ConcatInstruction(curlist);
|
|
|
+ instr.Free;
|
|
|
+ end;
|
|
|
+
|
|
|
+
|
|
|
+end.
|
|
|
+{
|
|
|
+ $Log$
|
|
|
+ Revision 1.1 2004-01-14 23:39:05 florian
|
|
|
+ * another bunch of x86-64 fixes mainly calling convention and
|
|
|
+ assembler reader related
|
|
|
+
|
|
|
+ Revision 1.58 2003/11/12 16:05:39 florian
|
|
|
+ * assembler readers OOPed
|
|
|
+ + typed currency constants
|
|
|
+ + typed 128 bit float constants if the CPU supports it
|
|
|
+
|
|
|
+ Revision 1.57 2003/11/10 19:08:32 peter
|
|
|
+ * line numbering is now only done when #10, #10#13 is really parsed
|
|
|
+ instead of when it is the next character
|
|
|
+
|
|
|
+ Revision 1.56 2003/10/29 16:47:18 peter
|
|
|
+ * fix field offset in reference
|
|
|
+
|
|
|
+ Revision 1.55 2003/10/26 13:37:22 florian
|
|
|
+ * fixed web bug 2128
|
|
|
+
|
|
|
+ Revision 1.54 2003/10/24 17:39:03 peter
|
|
|
+ * more intel parser updates
|
|
|
+
|
|
|
+ Revision 1.53 2003/10/23 17:19:44 peter
|
|
|
+ * typecasting fixes
|
|
|
+ * reference building more delphi compatible
|
|
|
+
|
|
|
+ Revision 1.52 2003/10/20 19:29:35 peter
|
|
|
+ * fix check for register subscription of reference parameter
|
|
|
+
|
|
|
+ Revision 1.51 2003/10/16 21:29:24 peter
|
|
|
+ + __HIGH() to retrieve high value
|
|
|
+
|
|
|
+ Revision 1.50 2003/10/07 18:21:18 peter
|
|
|
+ * fix crash
|
|
|
+ * allow parameter subscription for register parameters
|
|
|
+
|
|
|
+ Revision 1.49 2003/10/01 20:34:49 peter
|
|
|
+ * procinfo unit contains tprocinfo
|
|
|
+ * cginfo renamed to cgbase
|
|
|
+ * moved cgmessage to verbose
|
|
|
+ * fixed ppc and sparc compiles
|
|
|
+
|
|
|
+ Revision 1.48 2003/09/23 20:37:53 peter
|
|
|
+ * fix global var+offset
|
|
|
+
|
|
|
+ Revision 1.47 2003/09/23 17:56:06 peter
|
|
|
+ * locals and paras are allocated in the code generation
|
|
|
+ * tvarsym.localloc contains the location of para/local when
|
|
|
+ generating code for the current procedure
|
|
|
+
|
|
|
+ Revision 1.46 2003/09/03 15:55:01 peter
|
|
|
+ * NEWRA branch merged
|
|
|
+
|
|
|
+ Revision 1.45.2.2 2003/08/31 15:46:26 peter
|
|
|
+ * more updates for tregister
|
|
|
+
|
|
|
+ Revision 1.45.2.1 2003/08/28 18:35:08 peter
|
|
|
+ * tregister changed to cardinal
|
|
|
+
|
|
|
+ Revision 1.45 2003/05/30 23:57:08 peter
|
|
|
+ * more sparc cleanup
|
|
|
+ * accumulator removed, splitted in function_return_reg (called) and
|
|
|
+ function_result_reg (caller)
|
|
|
+
|
|
|
+ Revision 1.44 2003/05/22 21:32:29 peter
|
|
|
+ * removed some unit dependencies
|
|
|
+
|
|
|
+ Revision 1.43 2003/04/30 15:45:35 florian
|
|
|
+ * merged more x86-64/i386 code
|
|
|
+
|
|
|
+ Revision 1.42 2003/04/25 12:04:31 florian
|
|
|
+ * merged agx64att and ag386att to x86/agx86att
|
|
|
+
|
|
|
+ Revision 1.41 2003/04/21 20:05:10 peter
|
|
|
+ * removed some ie checks
|
|
|
+
|
|
|
+ Revision 1.40 2003/03/18 18:15:53 peter
|
|
|
+ * changed reg2opsize to function
|
|
|
+
|
|
|
+ Revision 1.39 2003/02/20 15:52:58 pierre
|
|
|
+ * fix a range check error
|
|
|
+
|
|
|
+ Revision 1.38 2003/02/19 22:00:16 daniel
|
|
|
+ * Code generator converted to new register notation
|
|
|
+ - Horribily outdated todo.txt removed
|
|
|
+
|
|
|
+ Revision 1.37 2003/02/03 22:47:14 daniel
|
|
|
+ - Removed reg_2_opsize array
|
|
|
+
|
|
|
+ Revision 1.36 2003/01/08 18:43:57 daniel
|
|
|
+ * Tregister changed into a record
|
|
|
+
|
|
|
+ Revision 1.35 2002/12/14 15:02:03 carl
|
|
|
+ * maxoperands -> max_operands (for portability in rautils.pas)
|
|
|
+ * fix some range-check errors with loadconst
|
|
|
+ + add ncgadd unit to m68k
|
|
|
+ * some bugfix of a_param_reg with LOC_CREFERENCE
|
|
|
+
|
|
|
+ Revision 1.34 2002/12/01 22:08:34 carl
|
|
|
+ * some small cleanup (remove some specific operators which are not supported)
|
|
|
+
|
|
|
+ Revision 1.33 2002/11/30 23:16:39 carl
|
|
|
+ - removed unused message
|
|
|
+
|
|
|
+ Revision 1.32 2002/11/15 01:58:58 peter
|
|
|
+ * merged changes from 1.0.7 up to 04-11
|
|
|
+ - -V option for generating bug report tracing
|
|
|
+ - more tracing for option parsing
|
|
|
+ - errors for cdecl and high()
|
|
|
+ - win32 import stabs
|
|
|
+ - win32 records<=8 are returned in eax:edx (turned off by default)
|
|
|
+ - heaptrc update
|
|
|
+ - more info for temp management in .s file with EXTDEBUG
|
|
|
+
|
|
|
+ Revision 1.31 2002/09/03 16:26:28 daniel
|
|
|
+ * Make Tprocdef.defs protected
|
|
|
+
|
|
|
+ Revision 1.30 2002/08/13 18:01:52 carl
|
|
|
+ * rename swatoperands to swapoperands
|
|
|
+ + m68k first compilable version (still needs a lot of testing):
|
|
|
+ assembler generator, system information , inline
|
|
|
+ assembler reader.
|
|
|
+
|
|
|
+ Revision 1.29 2002/08/12 15:08:42 carl
|
|
|
+ + stab register indexes for powerpc (moved from gdb to cpubase)
|
|
|
+ + tprocessor enumeration moved to cpuinfo
|
|
|
+ + linker in target_info is now a class
|
|
|
+ * many many updates for m68k (will soon start to compile)
|
|
|
+ - removed some ifdef or correct them for correct cpu
|
|
|
+
|
|
|
+ Revision 1.28 2002/08/11 14:32:31 peter
|
|
|
+ * renamed current_library to objectlibrary
|
|
|
+
|
|
|
+ Revision 1.27 2002/08/11 13:24:17 peter
|
|
|
+ * saving of asmsymbols in ppu supported
|
|
|
+ * asmsymbollist global is removed and moved into a new class
|
|
|
+ tasmlibrarydata that will hold the info of a .a file which
|
|
|
+ corresponds with a single module. Added librarydata to tmodule
|
|
|
+ to keep the library info stored for the module. In the future the
|
|
|
+ objectfiles will also be stored to the tasmlibrarydata class
|
|
|
+ * all getlabel/newasmsymbol and friends are moved to the new class
|
|
|
+
|
|
|
+ Revision 1.26 2002/07/26 21:15:44 florian
|
|
|
+ * rewrote the system handling
|
|
|
+
|
|
|
+ Revision 1.25 2002/07/01 18:46:34 peter
|
|
|
+ * internal linker
|
|
|
+ * reorganized aasm layer
|
|
|
+
|
|
|
+ Revision 1.24 2002/05/18 13:34:25 peter
|
|
|
+ * readded missing revisions
|
|
|
+
|
|
|
+ Revision 1.23 2002/05/16 19:46:52 carl
|
|
|
+ + defines.inc -> fpcdefs.inc to avoid conflicts if compiling by hand
|
|
|
+ + try to fix temp allocation (still in ifdef)
|
|
|
+ + generic constructor calls
|
|
|
+ + start of tassembler / tmodulebase class cleanup
|
|
|
+
|
|
|
+ Revision 1.21 2002/04/15 19:12:09 carl
|
|
|
+ + target_info.size_of_pointer -> pointer_size
|
|
|
+ + some cleanup of unused types/variables
|
|
|
+ * move several constants from cpubase to their specific units
|
|
|
+ (where they are used)
|
|
|
+ + att_Reg2str -> gas_reg2str
|
|
|
+ + int_reg2str -> std_reg2str
|
|
|
+
|
|
|
+ Revision 1.20 2002/04/14 17:01:52 carl
|
|
|
+ + att_reg2str -> gas_reg2str
|
|
|
+
|
|
|
+ Revision 1.19 2002/04/04 19:06:13 peter
|
|
|
+ * removed unused units
|
|
|
+ * use tlocation.size in cg.a_*loc*() routines
|
|
|
+
|
|
|
+ Revision 1.18 2002/04/02 17:11:39 peter
|
|
|
+ * tlocation,treference update
|
|
|
+ * LOC_CONSTANT added for better constant handling
|
|
|
+ * secondadd splitted in multiple routines
|
|
|
+ * location_force_reg added for loading a location to a register
|
|
|
+ of a specified size
|
|
|
+ * secondassignment parses now first the right and then the left node
|
|
|
+ (this is compatible with Kylix). This saves a lot of push/pop especially
|
|
|
+ with string operations
|
|
|
+ * adapted some routines to use the new cg methods
|
|
|
+
|
|
|
+ Revision 1.17 2002/03/28 20:48:25 carl
|
|
|
+ - remove go32v1 support
|
|
|
+
|
|
|
+ Revision 1.16 2002/01/24 18:25:53 peter
|
|
|
+ * implicit result variable generation for assembler routines
|
|
|
+ * removed m_tp modeswitch, use m_tp7 or not(m_fpc) instead
|
|
|
+
|
|
|
+}
|