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@@ -1,7 +1,7 @@
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{
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- Copyright (c) 1998-2002 by Carl Eric Codere and Peter Vreman
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+ Copyright (c) 1998-2006 by Carl Eric Codere and Peter Vreman
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- Does the parsing process for the intel styled inline assembler.
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+ Does the parsing for the i386 intel styled inline assembler.
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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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@@ -19,2106 +19,43 @@
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****************************************************************************
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}
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-Unit Ra386int;
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+Unit ra386int;
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{$i fpcdefs.inc}
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interface
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uses
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- cclasses,
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- cpubase,
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- globtype,
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- aasmbase,
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- rasm,
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- rax86;
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-
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- type
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- tasmtoken = (
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- AS_NONE,AS_LABEL,AS_LLABEL,AS_STRING,AS_INTNUM,
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- AS_COMMA,AS_LBRACKET,AS_RBRACKET,AS_LPAREN,
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- AS_RPAREN,AS_COLON,AS_DOT,AS_PLUS,AS_MINUS,AS_STAR,
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- AS_SEPARATOR,AS_ID,AS_REGISTER,AS_OPCODE,AS_SLASH,
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- {------------------ Assembler directives --------------------}
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- AS_ALIGN,AS_DB,AS_DW,AS_DD,AS_END,
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- {------------------ Assembler Operators --------------------}
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- AS_BYTE,AS_WORD,AS_DWORD,AS_QWORD,AS_TBYTE,AS_DQWORD,AS_NEAR,AS_FAR,
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- AS_HIGH,AS_LOW,AS_OFFSET,AS_SIZEOF,AS_SEG,AS_TYPE,AS_PTR,AS_MOD,AS_SHL,AS_SHR,AS_NOT,
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- AS_AND,AS_OR,AS_XOR);
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+ rax86int;
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type
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- ti386intreader = class(tasmreader)
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- actasmtoken : tasmtoken;
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- prevasmtoken : tasmtoken;
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- ActOpsize : topsize;
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- constructor create;override;
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- function is_asmopcode(const s: string):boolean;
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- function is_asmoperator(const s: string):boolean;
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- function is_asmdirective(const s: string):boolean;
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- function is_register(const s:string):boolean;
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- function is_locallabel(const s:string):boolean;
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- function Assemble: tlinkedlist;override;
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- procedure GetToken;
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- function consume(t : tasmtoken):boolean;
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- procedure RecoverConsume(allowcomma:boolean);
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- procedure BuildRecordOffsetSize(const expr: string;var offset:aint;var size:aint);
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- procedure BuildConstSymbolExpression(needofs,isref:boolean;var value:aint;var asmsym:string;var asmsymtyp:TAsmsymtype);
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- function BuildConstExpression:aint;
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- function BuildRefConstExpression:aint;
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- procedure BuildReference(oper : tx86operand);
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- procedure BuildOperand(oper: tx86operand;istypecast:boolean);
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- procedure BuildConstantOperand(oper: tx86operand);
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- procedure BuildOpCode(instr : tx86instruction);
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- procedure BuildConstant(constsize: byte);
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- end;
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+ ti386intreader = class(tx86intreader)
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+ // procedure handleopcode;override;
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+ end;
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implementation
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uses
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- { common }
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- cutils,
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- { global }
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- globals,verbose,
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- systems,
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- { aasm }
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- aasmtai,aasmdata,aasmcpu,
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- { symtable }
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- symconst,symbase,symtype,symsym,symdef,symtable,
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- { parser }
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- scanner,
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- { register allocator }
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- rabase,rautils,itx86int,
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- { codegen }
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- cgbase,cgobj,procinfo
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- ;
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-
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- type
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- tasmkeyword = string[6];
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-
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-
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- const
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- { These tokens should be modified accordingly to the modifications }
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- { in the different enumerations. }
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- firstdirective = AS_ALIGN;
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- lastdirective = AS_END;
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- firstoperator = AS_BYTE;
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- lastoperator = AS_XOR;
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-
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- _count_asmdirectives = longint(lastdirective)-longint(firstdirective);
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- _count_asmoperators = longint(lastoperator)-longint(firstoperator);
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-
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- _asmdirectives : array[0.._count_asmdirectives] of tasmkeyword =
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- ('ALIGN','DB','DW','DD','END');
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-
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- { problems with shl,shr,not,and,or and xor, they are }
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- { context sensitive. }
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- _asmoperators : array[0.._count_asmoperators] of tasmkeyword = (
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- 'BYTE','WORD','DWORD','QWORD','TBYTE','DQWORD','NEAR','FAR','HIGH',
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- 'LOW','OFFSET','SIZEOF','SEG','TYPE','PTR','MOD','SHL','SHR','NOT','AND',
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- 'OR','XOR');
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-
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- token2str : array[tasmtoken] of string[10] = (
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- '','Label','LLabel','String','Integer',
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- ',','[',']','(',
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- ')',':','.','+','-','*',
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- ';','identifier','register','opcode','/',
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- '','','','','END',
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- '','','','','','','','','',
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- '','','sizeof','','type','ptr','mod','shl','shr','not',
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- 'and','or','xor'
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- );
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-
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- var
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- inexpression : boolean;
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-
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- constructor ti386intreader.create;
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- var
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- i : tasmop;
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- str2opentry: tstr2opentry;
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- Begin
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- inherited create;
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- { opcodes }
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- { creates uppercased symbol tables for speed access }
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- iasmops:=tdictionary.create;
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- iasmops.delete_doubles:=true;
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- for i:=firstop to lastop do
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- begin
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- str2opentry:=tstr2opentry.createname(upper(std_op2str[i]));
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- str2opentry.op:=i;
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- iasmops.insert(str2opentry);
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- end;
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- end;
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-
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-
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-{---------------------------------------------------------------------}
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-{ Routines for the tokenizing }
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-{---------------------------------------------------------------------}
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-
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-
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- function ti386intreader.is_asmopcode(const s: string):boolean;
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- var
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- str2opentry: tstr2opentry;
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- cond : string[4];
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- cnd : tasmcond;
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- j: longint;
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- Begin
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- is_asmopcode:=FALSE;
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-
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- actopcode:=A_None;
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- actcondition:=C_None;
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- actopsize:=S_NO;
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-
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- str2opentry:=tstr2opentry(iasmops.search(s));
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- if assigned(str2opentry) then
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- begin
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- actopcode:=str2opentry.op;
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- actasmtoken:=AS_OPCODE;
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- is_asmopcode:=TRUE;
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- exit;
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- end;
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- { not found yet, check condition opcodes }
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- j:=0;
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- while (j<CondAsmOps) do
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- begin
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- if Copy(s,1,Length(CondAsmOpStr[j]))=CondAsmOpStr[j] then
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- begin
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- cond:=Copy(s,Length(CondAsmOpStr[j])+1,255);
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- if cond<>'' then
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- begin
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- for cnd:=low(TasmCond) to high(TasmCond) do
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- if Cond=Upper(cond2str[cnd]) then
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- begin
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- actopcode:=CondASmOp[j];
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- actcondition:=cnd;
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- is_asmopcode:=TRUE;
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- actasmtoken:=AS_OPCODE;
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- exit
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- end;
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- end;
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- end;
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- inc(j);
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- end;
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- end;
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-
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-
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- function ti386intreader.is_asmoperator(const s: string):boolean;
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- var
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- i : longint;
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- Begin
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- for i:=0 to _count_asmoperators do
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- if s=_asmoperators[i] then
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- begin
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- actasmtoken:=tasmtoken(longint(firstoperator)+i);
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- is_asmoperator:=true;
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- exit;
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- end;
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- is_asmoperator:=false;
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- end;
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-
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-
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- Function ti386intreader.is_asmdirective(const s: string):boolean;
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- var
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- i : longint;
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- Begin
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- for i:=0 to _count_asmdirectives do
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- if s=_asmdirectives[i] then
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- begin
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- actasmtoken:=tasmtoken(longint(firstdirective)+i);
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- is_asmdirective:=true;
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- exit;
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- end;
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- is_asmdirective:=false;
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- end;
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-
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-
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- function ti386intreader.is_register(const s:string):boolean;
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- begin
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- is_register:=false;
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- actasmregister:=masm_regnum_search(lower(s));
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- if actasmregister<>NR_NO then
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- begin
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- is_register:=true;
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- actasmtoken:=AS_REGISTER;
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- end;
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- end;
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-
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-
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- function ti386intreader.is_locallabel(const s:string):boolean;
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- begin
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- is_locallabel:=(length(s)>1) and (s[1]='@');
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- end;
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-
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-
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- Procedure ti386intreader.GetToken;
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- var
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- len : longint;
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- forcelabel : boolean;
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- srsym : tsym;
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- srsymtable : tsymtable;
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- begin
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- { save old token and reset new token }
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- prevasmtoken:=actasmtoken;
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- actasmtoken:=AS_NONE;
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- { reset }
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- forcelabel:=FALSE;
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- actasmpattern:='';
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- { while space and tab , continue scan... }
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- while (c in [' ',#9]) do
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- c:=current_scanner.asmgetchar;
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- { get token pos }
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- if not (c in [#10,#13,'{',';']) then
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- current_scanner.gettokenpos;
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- { Local Label, Label, Directive, Prefix or Opcode }
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- if firsttoken and not (c in [#10,#13,'{',';']) then
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- begin
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- firsttoken:=FALSE;
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- len:=0;
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- while c in ['A'..'Z','a'..'z','0'..'9','_','@'] do
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- begin
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- { if there is an at_sign, then this must absolutely be a label }
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- if c = '@' then
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- forcelabel:=TRUE;
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- inc(len);
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- actasmpattern[len]:=c;
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- c:=current_scanner.asmgetchar;
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- end;
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- actasmpattern[0]:=chr(len);
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- uppervar(actasmpattern);
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- { allow spaces }
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- while (c in [' ',#9]) do
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- c:=current_scanner.asmgetchar;
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- { label ? }
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- if c = ':' then
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- begin
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- if actasmpattern[1]='@' then
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- actasmtoken:=AS_LLABEL
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- else
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- actasmtoken:=AS_LABEL;
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- { let us point to the next character }
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- c:=current_scanner.asmgetchar;
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- firsttoken:=true;
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- exit;
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- end;
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- { Are we trying to create an identifier with }
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- { an at-sign...? }
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- if forcelabel then
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- Message(asmr_e_none_label_contain_at);
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- { opcode ? }
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- If is_asmopcode(actasmpattern) then
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- Begin
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- { check if we are in an expression }
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- { then continue with asm directives }
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- if not inexpression then
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- exit;
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- end;
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- if is_asmdirective(actasmpattern) then
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- exit;
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- message1(asmr_e_unknown_opcode,actasmpattern);
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- actasmtoken:=AS_NONE;
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- exit;
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- end
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- else { else firsttoken }
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- begin
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- case c of
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- '@' : { possiblities : - local label reference , such as in jmp @local1 }
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- { - @Result, @Code or @Data special variables. }
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- begin
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- actasmpattern:=c;
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- c:=current_scanner.asmgetchar;
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- while c in ['A'..'Z','a'..'z','0'..'9','_','@'] do
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- begin
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- actasmpattern:=actasmpattern + c;
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- c:=current_scanner.asmgetchar;
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- end;
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- uppervar(actasmpattern);
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- actasmtoken:=AS_ID;
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- exit;
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- end;
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-
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- 'A'..'Z','a'..'z','_': { identifier, register, opcode, prefix or directive }
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- begin
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- actasmpattern:=c;
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- c:=current_scanner.asmgetchar;
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- while c in ['A'..'Z','a'..'z','0'..'9','_'] do
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- begin
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- actasmpattern:=actasmpattern + c;
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- c:=current_scanner.asmgetchar;
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- end;
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- uppervar(actasmpattern);
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- { after prefix we allow also a new opcode }
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- If is_prefix(actopcode) and is_asmopcode(actasmpattern) then
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- Begin
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- { if we are not in a constant }
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- { expression than this is an }
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- { opcode. }
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- if not inexpression then
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- exit;
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- end;
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- { support st(X) for fpu registers }
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- if (actasmpattern = 'ST') and (c='(') then
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- Begin
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- actasmpattern:=actasmpattern+c;
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- c:=current_scanner.asmgetchar;
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- { allow spaces }
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- while (c in [' ',#9]) do
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- c:=current_scanner.asmgetchar;
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- if c in ['0'..'7'] then
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- actasmpattern:=actasmpattern + c
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- else
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- Message(asmr_e_invalid_fpu_register);
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- c:=current_scanner.asmgetchar;
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- { allow spaces }
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- while (c in [' ',#9]) do
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- c:=current_scanner.asmgetchar;
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- if c <> ')' then
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- Message(asmr_e_invalid_fpu_register)
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- else
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- Begin
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- actasmpattern:=actasmpattern + c;
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- c:=current_scanner.asmgetchar;
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- end;
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- end;
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- if is_register(actasmpattern) then
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- exit;
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- if is_asmdirective(actasmpattern) then
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- exit;
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- if is_asmoperator(actasmpattern) then
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- exit;
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- { allow spaces }
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- while (c in [' ',#9]) do
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- c:=current_scanner.asmgetchar;
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- { if next is a '.' and this is a unitsym then we also need to
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- parse the identifier }
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- if (c='.') then
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- begin
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- searchsym(actasmpattern,srsym,srsymtable);
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- if assigned(srsym) and
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- (srsym.typ=unitsym) and
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- (srsym.owner.symtabletype in [staticsymtable,globalsymtable]) and
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- srsym.owner.iscurrentunit then
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- begin
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- { Add . to create System.Identifier }
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- actasmpattern:=actasmpattern+c;
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- c:=current_scanner.asmgetchar;
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- { Delphi allows System.@Halt, just ignore the @ }
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- if c='@' then
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- c:=current_scanner.asmgetchar;
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- while c in ['A'..'Z','a'..'z','0'..'9','_','$'] do
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- begin
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- actasmpattern:=actasmpattern + upcase(c);
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- c:=current_scanner.asmgetchar;
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- end;
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- end;
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- end;
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- actasmtoken:=AS_ID;
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- exit;
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- end;
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-
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|
- '''' : { string or character }
|
|
|
- begin
|
|
|
- actasmpattern:='';
|
|
|
- current_scanner.in_asm_string:=true;
|
|
|
- repeat
|
|
|
- if c = '''' then
|
|
|
- begin
|
|
|
- c:=current_scanner.asmgetchar;
|
|
|
- if c in [#10,#13] then
|
|
|
- begin
|
|
|
- Message(scan_f_string_exceeds_line);
|
|
|
- break;
|
|
|
- end;
|
|
|
- repeat
|
|
|
- if c='''' then
|
|
|
- begin
|
|
|
- c:=current_scanner.asmgetchar;
|
|
|
- if c='''' then
|
|
|
- begin
|
|
|
- actasmpattern:=actasmpattern+'''';
|
|
|
- c:=current_scanner.asmgetchar;
|
|
|
- if c in [#10,#13] then
|
|
|
- begin
|
|
|
- Message(scan_f_string_exceeds_line);
|
|
|
- break;
|
|
|
- end;
|
|
|
- end
|
|
|
- else
|
|
|
- break;
|
|
|
- end
|
|
|
- else
|
|
|
- begin
|
|
|
- actasmpattern:=actasmpattern+c;
|
|
|
- c:=current_scanner.asmgetchar;
|
|
|
- if c in [#10,#13] then
|
|
|
- begin
|
|
|
- Message(scan_f_string_exceeds_line);
|
|
|
- break
|
|
|
- end;
|
|
|
- end;
|
|
|
- until false; { end repeat }
|
|
|
- end
|
|
|
- else
|
|
|
- break; { end if }
|
|
|
- until false;
|
|
|
- current_scanner.in_asm_string:=false;
|
|
|
- actasmtoken:=AS_STRING;
|
|
|
- exit;
|
|
|
- end;
|
|
|
-
|
|
|
- '"' : { string or character }
|
|
|
- begin
|
|
|
- current_scanner.in_asm_string:=true;
|
|
|
- actasmpattern:='';
|
|
|
- repeat
|
|
|
- if c = '"' then
|
|
|
- begin
|
|
|
- c:=current_scanner.asmgetchar;
|
|
|
- if c in [#10,#13] then
|
|
|
- begin
|
|
|
- Message(scan_f_string_exceeds_line);
|
|
|
- break;
|
|
|
- end;
|
|
|
- repeat
|
|
|
- if c='"' then
|
|
|
- begin
|
|
|
- c:=current_scanner.asmgetchar;
|
|
|
- if c='"' then
|
|
|
- begin
|
|
|
- actasmpattern:=actasmpattern+'"';
|
|
|
- c:=current_scanner.asmgetchar;
|
|
|
- if c in [#10,#13] then
|
|
|
- begin
|
|
|
- Message(scan_f_string_exceeds_line);
|
|
|
- break;
|
|
|
- end;
|
|
|
- end
|
|
|
- else
|
|
|
- break;
|
|
|
- end
|
|
|
- else
|
|
|
- begin
|
|
|
- actasmpattern:=actasmpattern+c;
|
|
|
- c:=current_scanner.asmgetchar;
|
|
|
- if c in [#10,#13] then
|
|
|
- begin
|
|
|
- Message(scan_f_string_exceeds_line);
|
|
|
- break
|
|
|
- end;
|
|
|
- end;
|
|
|
- until false; { end repeat }
|
|
|
- end
|
|
|
- else
|
|
|
- break; { end if }
|
|
|
- until false;
|
|
|
- current_scanner.in_asm_string:=false;
|
|
|
- actasmtoken:=AS_STRING;
|
|
|
- exit;
|
|
|
- end;
|
|
|
-
|
|
|
- '$' :
|
|
|
- begin
|
|
|
- c:=current_scanner.asmgetchar;
|
|
|
- while c in ['0'..'9','A'..'F','a'..'f'] do
|
|
|
- begin
|
|
|
- actasmpattern:=actasmpattern + c;
|
|
|
- c:=current_scanner.asmgetchar;
|
|
|
- end;
|
|
|
- actasmpattern:=tostr(ParseVal(actasmpattern,16));
|
|
|
- actasmtoken:=AS_INTNUM;
|
|
|
- exit;
|
|
|
- end;
|
|
|
-
|
|
|
- '&' : { identifier }
|
|
|
- begin
|
|
|
- actasmpattern:='';
|
|
|
- c:=current_scanner.asmgetchar;
|
|
|
- while c in ['A'..'Z','a'..'z','0'..'9','_'] do
|
|
|
- begin
|
|
|
- actasmpattern:=actasmpattern + c;
|
|
|
- c:=current_scanner.asmgetchar;
|
|
|
- end;
|
|
|
- uppervar(actasmpattern);
|
|
|
- actasmtoken:=AS_ID;
|
|
|
- exit;
|
|
|
- end;
|
|
|
-
|
|
|
- ',' :
|
|
|
- begin
|
|
|
- actasmtoken:=AS_COMMA;
|
|
|
- c:=current_scanner.asmgetchar;
|
|
|
- exit;
|
|
|
- end;
|
|
|
-
|
|
|
- '[' :
|
|
|
- begin
|
|
|
- actasmtoken:=AS_LBRACKET;
|
|
|
- c:=current_scanner.asmgetchar;
|
|
|
- exit;
|
|
|
- end;
|
|
|
-
|
|
|
- ']' :
|
|
|
- begin
|
|
|
- actasmtoken:=AS_RBRACKET;
|
|
|
- c:=current_scanner.asmgetchar;
|
|
|
- exit;
|
|
|
- end;
|
|
|
-
|
|
|
- '(' :
|
|
|
- begin
|
|
|
- actasmtoken:=AS_LPAREN;
|
|
|
- c:=current_scanner.asmgetchar;
|
|
|
- exit;
|
|
|
- end;
|
|
|
-
|
|
|
- ')' :
|
|
|
- begin
|
|
|
- actasmtoken:=AS_RPAREN;
|
|
|
- c:=current_scanner.asmgetchar;
|
|
|
- exit;
|
|
|
- end;
|
|
|
-
|
|
|
- ':' :
|
|
|
- begin
|
|
|
- actasmtoken:=AS_COLON;
|
|
|
- c:=current_scanner.asmgetchar;
|
|
|
- exit;
|
|
|
- end;
|
|
|
-
|
|
|
- '.' :
|
|
|
- begin
|
|
|
- actasmtoken:=AS_DOT;
|
|
|
- c:=current_scanner.asmgetchar;
|
|
|
- exit;
|
|
|
- end;
|
|
|
-
|
|
|
- '+' :
|
|
|
- begin
|
|
|
- actasmtoken:=AS_PLUS;
|
|
|
- c:=current_scanner.asmgetchar;
|
|
|
- exit;
|
|
|
- end;
|
|
|
-
|
|
|
- '-' :
|
|
|
- begin
|
|
|
- actasmtoken:=AS_MINUS;
|
|
|
- c:=current_scanner.asmgetchar;
|
|
|
- exit;
|
|
|
- end;
|
|
|
-
|
|
|
- '*' :
|
|
|
- begin
|
|
|
- actasmtoken:=AS_STAR;
|
|
|
- c:=current_scanner.asmgetchar;
|
|
|
- exit;
|
|
|
- end;
|
|
|
-
|
|
|
- '/' :
|
|
|
- begin
|
|
|
- actasmtoken:=AS_SLASH;
|
|
|
- c:=current_scanner.asmgetchar;
|
|
|
- exit;
|
|
|
- end;
|
|
|
-
|
|
|
- '0'..'9':
|
|
|
- begin
|
|
|
- actasmpattern:=c;
|
|
|
- c:=current_scanner.asmgetchar;
|
|
|
- { Get the possible characters }
|
|
|
- while c in ['0'..'9','A'..'F','a'..'f'] do
|
|
|
- begin
|
|
|
- actasmpattern:=actasmpattern + c;
|
|
|
- c:=current_scanner.asmgetchar;
|
|
|
- end;
|
|
|
- { Get ending character }
|
|
|
- uppervar(actasmpattern);
|
|
|
- c:=upcase(c);
|
|
|
- { possibly a binary number. }
|
|
|
- if (actasmpattern[length(actasmpattern)] = 'B') and (c <> 'H') then
|
|
|
- Begin
|
|
|
- { Delete the last binary specifier }
|
|
|
- delete(actasmpattern,length(actasmpattern),1);
|
|
|
- actasmpattern:=tostr(ParseVal(actasmpattern,2));
|
|
|
- actasmtoken:=AS_INTNUM;
|
|
|
- exit;
|
|
|
- end
|
|
|
- else
|
|
|
- Begin
|
|
|
- case c of
|
|
|
- 'O' :
|
|
|
- Begin
|
|
|
- actasmpattern:=tostr(ParseVal(actasmpattern,8));
|
|
|
- actasmtoken:=AS_INTNUM;
|
|
|
- c:=current_scanner.asmgetchar;
|
|
|
- exit;
|
|
|
- end;
|
|
|
- 'H' :
|
|
|
- Begin
|
|
|
- actasmpattern:=tostr(ParseVal(actasmpattern,16));
|
|
|
- actasmtoken:=AS_INTNUM;
|
|
|
- c:=current_scanner.asmgetchar;
|
|
|
- exit;
|
|
|
- end;
|
|
|
- else { must be an integer number }
|
|
|
- begin
|
|
|
- actasmpattern:=tostr(ParseVal(actasmpattern,10));
|
|
|
- actasmtoken:=AS_INTNUM;
|
|
|
- exit;
|
|
|
- end;
|
|
|
- end;
|
|
|
- end;
|
|
|
- end;
|
|
|
- ';','{',#13,#10 :
|
|
|
- begin
|
|
|
- c:=current_scanner.asmgetchar;
|
|
|
- firsttoken:=TRUE;
|
|
|
- actasmtoken:=AS_SEPARATOR;
|
|
|
- exit;
|
|
|
- end;
|
|
|
-
|
|
|
- else
|
|
|
- current_scanner.illegal_char(c);
|
|
|
- end;
|
|
|
- end;
|
|
|
- end;
|
|
|
-
|
|
|
-
|
|
|
- function ti386intreader.consume(t : tasmtoken):boolean;
|
|
|
- begin
|
|
|
- Consume:=true;
|
|
|
- if t<>actasmtoken then
|
|
|
- begin
|
|
|
- Message2(scan_f_syn_expected,token2str[t],token2str[actasmtoken]);
|
|
|
- Consume:=false;
|
|
|
- end;
|
|
|
- repeat
|
|
|
- gettoken;
|
|
|
- until actasmtoken<>AS_NONE;
|
|
|
- end;
|
|
|
-
|
|
|
-
|
|
|
- procedure ti386intreader.RecoverConsume(allowcomma:boolean);
|
|
|
- begin
|
|
|
- While not (actasmtoken in [AS_SEPARATOR,AS_END]) do
|
|
|
- begin
|
|
|
- if allowcomma and (actasmtoken=AS_COMMA) then
|
|
|
- break;
|
|
|
- Consume(actasmtoken);
|
|
|
- end;
|
|
|
- end;
|
|
|
-
|
|
|
-
|
|
|
-{*****************************************************************************
|
|
|
- Parsing Helpers
|
|
|
-*****************************************************************************}
|
|
|
-
|
|
|
- { This routine builds up a record offset after a AS_DOT
|
|
|
- token is encountered.
|
|
|
- On entry actasmtoken should be equal to AS_DOT }
|
|
|
- Procedure ti386intreader.BuildRecordOffsetSize(const expr: string;var offset:aint;var size:aint);
|
|
|
- var
|
|
|
- s : string;
|
|
|
- Begin
|
|
|
- offset:=0;
|
|
|
- size:=0;
|
|
|
- s:=expr;
|
|
|
- while (actasmtoken=AS_DOT) do
|
|
|
- begin
|
|
|
- Consume(AS_DOT);
|
|
|
- if actasmtoken in [AS_BYTE,AS_ID,AS_WORD,AS_DWORD,AS_QWORD] then
|
|
|
- begin
|
|
|
- s:=s+'.'+actasmpattern;
|
|
|
- consume(actasmtoken);
|
|
|
- end
|
|
|
- else
|
|
|
- begin
|
|
|
- Consume(AS_ID);
|
|
|
- RecoverConsume(true);
|
|
|
- break;
|
|
|
- end;
|
|
|
- end;
|
|
|
- if not GetRecordOffsetSize(s,offset,size) then
|
|
|
- Message(asmr_e_building_record_offset);
|
|
|
- end;
|
|
|
-
|
|
|
-
|
|
|
- Procedure ti386intreader.BuildConstSymbolExpression(needofs,isref:boolean;var value:aint;var asmsym:string;var asmsymtyp:TAsmsymtype);
|
|
|
- var
|
|
|
- tempstr,expr,hs : string;
|
|
|
- parenlevel : longint;
|
|
|
- l,k : aint;
|
|
|
- hasparen,
|
|
|
- errorflag : boolean;
|
|
|
- prevtok : tasmtoken;
|
|
|
- hl : tasmlabel;
|
|
|
- hssymtyp : Tasmsymtype;
|
|
|
- def : tdef;
|
|
|
- sym : tsym;
|
|
|
- srsymtable : tsymtable;
|
|
|
- Begin
|
|
|
- { reset }
|
|
|
- value:=0;
|
|
|
- asmsym:='';
|
|
|
- asmsymtyp:=AT_DATA;
|
|
|
- errorflag:=FALSE;
|
|
|
- tempstr:='';
|
|
|
- expr:='';
|
|
|
- inexpression:=TRUE;
|
|
|
- parenlevel:=0;
|
|
|
- Repeat
|
|
|
- { Support ugly delphi constructs like: [ECX].1+2[EDX] }
|
|
|
- if isref and (actasmtoken=AS_LBRACKET) then
|
|
|
- break;
|
|
|
- Case actasmtoken of
|
|
|
- AS_LPAREN:
|
|
|
- Begin
|
|
|
- Consume(AS_LPAREN);
|
|
|
- expr:=expr + '(';
|
|
|
- inc(parenlevel);
|
|
|
- end;
|
|
|
- AS_RPAREN:
|
|
|
- Begin
|
|
|
- { Keep the AS_PAREN in actasmtoken, it is maybe a typecast }
|
|
|
- if parenlevel=0 then
|
|
|
- break;
|
|
|
- Consume(AS_RPAREN);
|
|
|
- expr:=expr + ')';
|
|
|
- dec(parenlevel);
|
|
|
- end;
|
|
|
- AS_SHL:
|
|
|
- Begin
|
|
|
- Consume(AS_SHL);
|
|
|
- expr:=expr + '<';
|
|
|
- end;
|
|
|
- AS_SHR:
|
|
|
- Begin
|
|
|
- Consume(AS_SHR);
|
|
|
- expr:=expr + '>';
|
|
|
- end;
|
|
|
- AS_SLASH:
|
|
|
- Begin
|
|
|
- Consume(AS_SLASH);
|
|
|
- expr:=expr + '/';
|
|
|
- end;
|
|
|
- AS_MOD:
|
|
|
- Begin
|
|
|
- Consume(AS_MOD);
|
|
|
- expr:=expr + '%';
|
|
|
- end;
|
|
|
- AS_STAR:
|
|
|
- Begin
|
|
|
- Consume(AS_STAR);
|
|
|
- if isref and (actasmtoken=AS_REGISTER) then
|
|
|
- break;
|
|
|
- expr:=expr + '*';
|
|
|
- end;
|
|
|
- AS_PLUS:
|
|
|
- Begin
|
|
|
- Consume(AS_PLUS);
|
|
|
- if isref and (actasmtoken=AS_REGISTER) then
|
|
|
- break;
|
|
|
- expr:=expr + '+';
|
|
|
- end;
|
|
|
- AS_MINUS:
|
|
|
- Begin
|
|
|
- Consume(AS_MINUS);
|
|
|
- expr:=expr + '-';
|
|
|
- end;
|
|
|
- AS_AND:
|
|
|
- Begin
|
|
|
- Consume(AS_AND);
|
|
|
- expr:=expr + '&';
|
|
|
- end;
|
|
|
- AS_NOT:
|
|
|
- Begin
|
|
|
- Consume(AS_NOT);
|
|
|
- expr:=expr + '~';
|
|
|
- end;
|
|
|
- AS_XOR:
|
|
|
- Begin
|
|
|
- Consume(AS_XOR);
|
|
|
- expr:=expr + '^';
|
|
|
- end;
|
|
|
- AS_OR:
|
|
|
- Begin
|
|
|
- Consume(AS_OR);
|
|
|
- expr:=expr + '|';
|
|
|
- end;
|
|
|
- AS_INTNUM:
|
|
|
- Begin
|
|
|
- expr:=expr + actasmpattern;
|
|
|
- Consume(AS_INTNUM);
|
|
|
- end;
|
|
|
- AS_OFFSET:
|
|
|
- begin
|
|
|
- Consume(AS_OFFSET);
|
|
|
- needofs:=true;
|
|
|
- if actasmtoken<>AS_ID then
|
|
|
- Message(asmr_e_offset_without_identifier);
|
|
|
- end;
|
|
|
- AS_SIZEOF,
|
|
|
- AS_TYPE:
|
|
|
- begin
|
|
|
- l:=0;
|
|
|
- hasparen:=false;
|
|
|
- Consume(actasmtoken);
|
|
|
- if actasmtoken=AS_LPAREN then
|
|
|
- begin
|
|
|
- hasparen:=true;
|
|
|
- Consume(AS_LPAREN);
|
|
|
- end;
|
|
|
- if actasmtoken<>AS_ID then
|
|
|
- Message(asmr_e_type_without_identifier)
|
|
|
- else
|
|
|
- begin
|
|
|
- tempstr:=actasmpattern;
|
|
|
- Consume(AS_ID);
|
|
|
- if actasmtoken=AS_DOT then
|
|
|
- BuildRecordOffsetSize(tempstr,k,l)
|
|
|
- else
|
|
|
- begin
|
|
|
- searchsym(tempstr,sym,srsymtable);
|
|
|
- if assigned(sym) then
|
|
|
- begin
|
|
|
- case sym.typ of
|
|
|
- globalvarsym,
|
|
|
- localvarsym,
|
|
|
- paravarsym :
|
|
|
- l:=tabstractvarsym(sym).getsize;
|
|
|
- typedconstsym :
|
|
|
- l:=ttypedconstsym(sym).getsize;
|
|
|
- typesym :
|
|
|
- l:=ttypesym(sym).restype.def.size;
|
|
|
- else
|
|
|
- Message(asmr_e_wrong_sym_type);
|
|
|
- end;
|
|
|
- end
|
|
|
- else
|
|
|
- Message1(sym_e_unknown_id,tempstr);
|
|
|
- end;
|
|
|
- end;
|
|
|
- str(l, tempstr);
|
|
|
- expr:=expr + tempstr;
|
|
|
- if hasparen then
|
|
|
- Consume(AS_RPAREN);
|
|
|
- end;
|
|
|
- AS_PTR :
|
|
|
- begin
|
|
|
- { Support ugly delphi constructs like <constant> PTR [ref] }
|
|
|
- break;
|
|
|
- end;
|
|
|
- AS_STRING:
|
|
|
- begin
|
|
|
- l:=0;
|
|
|
- case Length(actasmpattern) of
|
|
|
- 1 :
|
|
|
- l:=ord(actasmpattern[1]);
|
|
|
- 2 :
|
|
|
- l:=ord(actasmpattern[2]) + ord(actasmpattern[1]) shl 8;
|
|
|
- 3 :
|
|
|
- l:=ord(actasmpattern[3]) +
|
|
|
- Ord(actasmpattern[2]) shl 8 + ord(actasmpattern[1]) shl 16;
|
|
|
- 4 :
|
|
|
- l:=ord(actasmpattern[4]) + ord(actasmpattern[3]) shl 8 +
|
|
|
- Ord(actasmpattern[2]) shl 16 + ord(actasmpattern[1]) shl 24;
|
|
|
- else
|
|
|
- Message1(asmr_e_invalid_string_as_opcode_operand,actasmpattern);
|
|
|
- end;
|
|
|
- str(l, tempstr);
|
|
|
- expr:=expr + tempstr;
|
|
|
- Consume(AS_STRING);
|
|
|
- end;
|
|
|
- AS_ID:
|
|
|
- begin
|
|
|
- hs:='';
|
|
|
- hssymtyp:=AT_DATA;
|
|
|
- def:=nil;
|
|
|
- tempstr:=actasmpattern;
|
|
|
- prevtok:=prevasmtoken;
|
|
|
- { stop parsing a constant expression if we find an opcode after a
|
|
|
- non-operator like "db $66 mov eax,ebx" }
|
|
|
- if (prevtok in [AS_ID,AS_INTNUM,AS_RPAREN]) and
|
|
|
- is_asmopcode(actasmpattern) then
|
|
|
- break;
|
|
|
- consume(AS_ID);
|
|
|
- if SearchIConstant(tempstr,l) then
|
|
|
- begin
|
|
|
- str(l, tempstr);
|
|
|
- expr:=expr + tempstr;
|
|
|
- end
|
|
|
- else
|
|
|
- begin
|
|
|
- if is_locallabel(tempstr) then
|
|
|
- begin
|
|
|
- CreateLocalLabel(tempstr,hl,false);
|
|
|
- hs:=hl.name;
|
|
|
- hssymtyp:=AT_FUNCTION;
|
|
|
- end
|
|
|
- else
|
|
|
- if SearchLabel(tempstr,hl,false) then
|
|
|
- begin
|
|
|
- hs:=hl.name;
|
|
|
- hssymtyp:=AT_FUNCTION;
|
|
|
- end
|
|
|
- else
|
|
|
- begin
|
|
|
- searchsym(tempstr,sym,srsymtable);
|
|
|
- if assigned(sym) then
|
|
|
- begin
|
|
|
- case sym.typ of
|
|
|
- globalvarsym :
|
|
|
- begin
|
|
|
- hs:=tglobalvarsym(sym).mangledname;
|
|
|
- def:=tglobalvarsym(sym).vartype.def;
|
|
|
- end;
|
|
|
- localvarsym,
|
|
|
- paravarsym :
|
|
|
- begin
|
|
|
- Message(asmr_e_no_local_or_para_allowed);
|
|
|
- end;
|
|
|
- typedconstsym :
|
|
|
- begin
|
|
|
- hs:=ttypedconstsym(sym).mangledname;
|
|
|
- def:=ttypedconstsym(sym).typedconsttype.def;
|
|
|
- end;
|
|
|
- procsym :
|
|
|
- begin
|
|
|
- if Tprocsym(sym).procdef_count>1 then
|
|
|
- Message(asmr_w_calling_overload_func);
|
|
|
- hs:=tprocsym(sym).first_procdef.mangledname;
|
|
|
- hssymtyp:=AT_FUNCTION;
|
|
|
- end;
|
|
|
- typesym :
|
|
|
- begin
|
|
|
- if not(ttypesym(sym).restype.def.deftype in [recorddef,objectdef]) then
|
|
|
- Message(asmr_e_wrong_sym_type);
|
|
|
- end;
|
|
|
- else
|
|
|
- Message(asmr_e_wrong_sym_type);
|
|
|
- end;
|
|
|
- end
|
|
|
- else
|
|
|
- Message1(sym_e_unknown_id,tempstr);
|
|
|
- end;
|
|
|
- { symbol found? }
|
|
|
- if hs<>'' then
|
|
|
- begin
|
|
|
- if asmsym='' then
|
|
|
- begin
|
|
|
- asmsym:=hs;
|
|
|
- asmsymtyp:=hssymtyp;
|
|
|
- end
|
|
|
- else
|
|
|
- Message(asmr_e_cant_have_multiple_relocatable_symbols);
|
|
|
- if (expr='') or (expr[length(expr)]='+') then
|
|
|
- begin
|
|
|
- { don't remove the + if there could be a record field }
|
|
|
- if actasmtoken<>AS_DOT then
|
|
|
- delete(expr,length(expr),1);
|
|
|
- end
|
|
|
- else
|
|
|
- if needofs then
|
|
|
- begin
|
|
|
- if (prevtok<>AS_OFFSET) then
|
|
|
- Message(asmr_e_need_offset);
|
|
|
- end
|
|
|
- else
|
|
|
- Message(asmr_e_only_add_relocatable_symbol);
|
|
|
- end;
|
|
|
- if actasmtoken=AS_DOT then
|
|
|
- begin
|
|
|
- BuildRecordOffsetSize(tempstr,l,k);
|
|
|
- str(l, tempstr);
|
|
|
- expr:=expr + tempstr;
|
|
|
- end
|
|
|
- else
|
|
|
- begin
|
|
|
- if (expr='') or (expr[length(expr)] in ['+','-','/','*']) then
|
|
|
- delete(expr,length(expr),1);
|
|
|
- end;
|
|
|
- if (actasmtoken=AS_LBRACKET) and
|
|
|
- assigned(def) and
|
|
|
- (def.deftype=arraydef) then
|
|
|
- begin
|
|
|
- consume(AS_LBRACKET);
|
|
|
- l:=BuildConstExpression;
|
|
|
- if l<tarraydef(def).lowrange then
|
|
|
- begin
|
|
|
- Message(asmr_e_constant_out_of_bounds);
|
|
|
- l:=0;
|
|
|
- end
|
|
|
- else
|
|
|
- l:=(l-tarraydef(def).lowrange)*tarraydef(def).elesize;
|
|
|
- str(l, tempstr);
|
|
|
- expr:=expr + '+' + tempstr;
|
|
|
- consume(AS_RBRACKET);
|
|
|
- end;
|
|
|
- end;
|
|
|
- { check if there are wrong operator used like / or mod etc. }
|
|
|
- if (hs<>'') and not(actasmtoken in [AS_MINUS,AS_PLUS,AS_COMMA,AS_SEPARATOR,AS_END,AS_RBRACKET]) then
|
|
|
- Message(asmr_e_only_add_relocatable_symbol);
|
|
|
- end;
|
|
|
- AS_ALIGN,
|
|
|
- AS_DB,
|
|
|
- AS_DW,
|
|
|
- AS_DD,
|
|
|
- AS_END,
|
|
|
- AS_RBRACKET,
|
|
|
- AS_SEPARATOR,
|
|
|
- AS_COMMA,
|
|
|
- AS_COLON:
|
|
|
- break;
|
|
|
- else
|
|
|
- begin
|
|
|
- { write error only once. }
|
|
|
- if not errorflag then
|
|
|
- Message(asmr_e_invalid_constant_expression);
|
|
|
- { consume tokens until we find COMMA or SEPARATOR }
|
|
|
- Consume(actasmtoken);
|
|
|
- errorflag:=TRUE;
|
|
|
- end;
|
|
|
- end;
|
|
|
- Until false;
|
|
|
- { calculate expression }
|
|
|
- if not ErrorFlag then
|
|
|
- value:=CalculateExpression(expr)
|
|
|
- else
|
|
|
- value:=0;
|
|
|
- { no longer in an expression }
|
|
|
- inexpression:=FALSE;
|
|
|
- end;
|
|
|
-
|
|
|
-
|
|
|
- Function ti386intreader.BuildConstExpression:aint;
|
|
|
- var
|
|
|
- l : aint;
|
|
|
- hs : string;
|
|
|
- hssymtyp : TAsmsymtype;
|
|
|
- begin
|
|
|
- BuildConstSymbolExpression(false,false,l,hs,hssymtyp);
|
|
|
- if hs<>'' then
|
|
|
- Message(asmr_e_relocatable_symbol_not_allowed);
|
|
|
- BuildConstExpression:=l;
|
|
|
- end;
|
|
|
-
|
|
|
-
|
|
|
- Function ti386intreader.BuildRefConstExpression:aint;
|
|
|
- var
|
|
|
- l : aint;
|
|
|
- hs : string;
|
|
|
- hssymtyp : TAsmsymtype;
|
|
|
- begin
|
|
|
- BuildConstSymbolExpression(false,true,l,hs,hssymtyp);
|
|
|
- if hs<>'' then
|
|
|
- Message(asmr_e_relocatable_symbol_not_allowed);
|
|
|
- BuildRefConstExpression:=l;
|
|
|
- end;
|
|
|
-
|
|
|
-
|
|
|
- procedure ti386intreader.BuildReference(oper : tx86operand);
|
|
|
- var
|
|
|
- scale : byte;
|
|
|
- k,l : aint;
|
|
|
- tempstr,hs : string;
|
|
|
- tempsymtyp : tasmsymtype;
|
|
|
- code : integer;
|
|
|
- hreg : tregister;
|
|
|
- GotStar,GotOffset,HadVar,
|
|
|
- GotPlus,Negative : boolean;
|
|
|
- hl : tasmlabel;
|
|
|
- Begin
|
|
|
- Consume(AS_LBRACKET);
|
|
|
- if not(oper.opr.typ in [OPR_LOCAL,OPR_REFERENCE]) then
|
|
|
- oper.InitRef;
|
|
|
- GotStar:=false;
|
|
|
- GotPlus:=true;
|
|
|
- GotOffset:=false;
|
|
|
- Negative:=false;
|
|
|
- Scale:=0;
|
|
|
- repeat
|
|
|
- if GotOffset and (actasmtoken<>AS_ID) then
|
|
|
- Message(asmr_e_invalid_reference_syntax);
|
|
|
-
|
|
|
- Case actasmtoken of
|
|
|
-
|
|
|
- AS_ID: { Constant reference expression OR variable reference expression }
|
|
|
- Begin
|
|
|
- if not GotPlus then
|
|
|
- Message(asmr_e_invalid_reference_syntax);
|
|
|
- GotStar:=false;
|
|
|
- GotPlus:=false;
|
|
|
- if SearchIConstant(actasmpattern,l) or
|
|
|
- SearchRecordType(actasmpattern) then
|
|
|
- begin
|
|
|
- l:=BuildRefConstExpression;
|
|
|
- GotPlus:=(prevasmtoken=AS_PLUS);
|
|
|
- GotStar:=(prevasmtoken=AS_STAR);
|
|
|
- case oper.opr.typ of
|
|
|
- OPR_LOCAL :
|
|
|
- begin
|
|
|
- if GotStar then
|
|
|
- Message(asmr_e_invalid_reference_syntax);
|
|
|
- if negative then
|
|
|
- Dec(oper.opr.localsymofs,l)
|
|
|
- else
|
|
|
- Inc(oper.opr.localsymofs,l);
|
|
|
- end;
|
|
|
- OPR_REFERENCE :
|
|
|
- begin
|
|
|
- if GotStar then
|
|
|
- oper.opr.ref.scalefactor:=l
|
|
|
- else
|
|
|
- begin
|
|
|
- if negative then
|
|
|
- Dec(oper.opr.ref.offset,l)
|
|
|
- else
|
|
|
- Inc(oper.opr.ref.offset,l);
|
|
|
- end;
|
|
|
- end;
|
|
|
- end;
|
|
|
- end
|
|
|
- else
|
|
|
- Begin
|
|
|
- if oper.hasvar and not GotOffset then
|
|
|
- Message(asmr_e_cant_have_multiple_relocatable_symbols);
|
|
|
- HadVar:=oper.hasvar and GotOffset;
|
|
|
- if negative then
|
|
|
- Message(asmr_e_only_add_relocatable_symbol);
|
|
|
- tempstr:=actasmpattern;
|
|
|
- Consume(AS_ID);
|
|
|
- { typecasting? }
|
|
|
- if (actasmtoken=AS_LPAREN) and
|
|
|
- SearchType(tempstr,l) then
|
|
|
- begin
|
|
|
- oper.hastype:=true;
|
|
|
- oper.typesize:=l;
|
|
|
- Consume(AS_LPAREN);
|
|
|
- BuildOperand(oper,true);
|
|
|
- Consume(AS_RPAREN);
|
|
|
- end
|
|
|
- else
|
|
|
- if is_locallabel(tempstr) then
|
|
|
- begin
|
|
|
- CreateLocalLabel(tempstr,hl,false);
|
|
|
- oper.InitRef;
|
|
|
- oper.opr.ref.symbol:=hl;
|
|
|
- oper.hasvar:=true;
|
|
|
- end
|
|
|
- else
|
|
|
- if oper.SetupVar(tempstr,GotOffset) then
|
|
|
- begin
|
|
|
- { force OPR_LOCAL to be a reference }
|
|
|
- if oper.opr.typ=OPR_LOCAL then
|
|
|
- oper.opr.localforceref:=true;
|
|
|
- end
|
|
|
- else
|
|
|
- Message1(sym_e_unknown_id,tempstr);
|
|
|
- { record.field ? }
|
|
|
- if actasmtoken=AS_DOT then
|
|
|
- begin
|
|
|
- BuildRecordOffsetSize(tempstr,l,k);
|
|
|
- case oper.opr.typ of
|
|
|
- OPR_LOCAL :
|
|
|
- inc(oper.opr.localsymofs,l);
|
|
|
- OPR_REFERENCE :
|
|
|
- inc(oper.opr.ref.offset,l);
|
|
|
- end;
|
|
|
- end;
|
|
|
- if GotOffset then
|
|
|
- begin
|
|
|
- if oper.hasvar and (oper.opr.ref.base=current_procinfo.framepointer) then
|
|
|
- begin
|
|
|
- if (oper.opr.typ=OPR_REFERENCE) then
|
|
|
- oper.opr.ref.base:=NR_NO;
|
|
|
- oper.hasvar:=hadvar;
|
|
|
- end
|
|
|
- else
|
|
|
- begin
|
|
|
- if oper.hasvar and hadvar then
|
|
|
- Message(asmr_e_cant_have_multiple_relocatable_symbols);
|
|
|
- { should we allow ?? }
|
|
|
- end;
|
|
|
- end;
|
|
|
- end;
|
|
|
- GotOffset:=false;
|
|
|
- end;
|
|
|
-
|
|
|
- AS_PLUS :
|
|
|
- Begin
|
|
|
- Consume(AS_PLUS);
|
|
|
- Negative:=false;
|
|
|
- GotPlus:=true;
|
|
|
- GotStar:=false;
|
|
|
- Scale:=0;
|
|
|
- end;
|
|
|
-
|
|
|
- AS_MINUS :
|
|
|
- begin
|
|
|
- Consume(AS_MINUS);
|
|
|
- Negative:=true;
|
|
|
- GotPlus:=true;
|
|
|
- GotStar:=false;
|
|
|
- Scale:=0;
|
|
|
- end;
|
|
|
-
|
|
|
- AS_STAR : { Scaling, with eax*4 order }
|
|
|
- begin
|
|
|
- Consume(AS_STAR);
|
|
|
- hs:='';
|
|
|
- l:=0;
|
|
|
- case actasmtoken of
|
|
|
- AS_LPAREN :
|
|
|
- l:=BuildConstExpression;
|
|
|
- AS_INTNUM:
|
|
|
- Begin
|
|
|
- hs:=actasmpattern;
|
|
|
- Consume(AS_INTNUM);
|
|
|
- end;
|
|
|
- AS_REGISTER :
|
|
|
- begin
|
|
|
- case oper.opr.typ of
|
|
|
- OPR_REFERENCE :
|
|
|
- begin
|
|
|
- if oper.opr.ref.scalefactor=0 then
|
|
|
- begin
|
|
|
- if scale<>0 then
|
|
|
- begin
|
|
|
- oper.opr.ref.scalefactor:=scale;
|
|
|
- scale:=0;
|
|
|
- end
|
|
|
- else
|
|
|
- Message(asmr_e_wrong_scale_factor);
|
|
|
- end
|
|
|
- else
|
|
|
- Message(asmr_e_invalid_reference_syntax);
|
|
|
- end;
|
|
|
- OPR_LOCAL :
|
|
|
- begin
|
|
|
- if oper.opr.localscale=0 then
|
|
|
- begin
|
|
|
- if scale<>0 then
|
|
|
- begin
|
|
|
- oper.opr.localscale:=scale;
|
|
|
- scale:=0;
|
|
|
- end
|
|
|
- else
|
|
|
- Message(asmr_e_wrong_scale_factor);
|
|
|
- end
|
|
|
- else
|
|
|
- Message(asmr_e_invalid_reference_syntax);
|
|
|
- end;
|
|
|
- end;
|
|
|
- end;
|
|
|
- else
|
|
|
- Message(asmr_e_invalid_reference_syntax);
|
|
|
- end;
|
|
|
- if actasmtoken<>AS_REGISTER then
|
|
|
- begin
|
|
|
- if hs<>'' then
|
|
|
- val(hs,l,code);
|
|
|
- case oper.opr.typ of
|
|
|
- OPR_REFERENCE :
|
|
|
- oper.opr.ref.scalefactor:=l;
|
|
|
- OPR_LOCAL :
|
|
|
- oper.opr.localscale:=l;
|
|
|
- end;
|
|
|
- if l>9 then
|
|
|
- Message(asmr_e_wrong_scale_factor);
|
|
|
- end;
|
|
|
- GotPlus:=false;
|
|
|
- GotStar:=false;
|
|
|
- end;
|
|
|
-
|
|
|
- AS_REGISTER :
|
|
|
- begin
|
|
|
- if not((GotPlus and (not Negative)) or
|
|
|
- GotStar) then
|
|
|
- Message(asmr_e_invalid_reference_syntax);
|
|
|
- hreg:=actasmregister;
|
|
|
- Consume(AS_REGISTER);
|
|
|
- { this register will be the index:
|
|
|
- 1. just read a *
|
|
|
- 2. next token is a *
|
|
|
- 3. base register is already used }
|
|
|
- case oper.opr.typ of
|
|
|
- OPR_LOCAL :
|
|
|
- begin
|
|
|
- if (oper.opr.localindexreg<>NR_NO) then
|
|
|
- Message(asmr_e_multiple_index);
|
|
|
- oper.opr.localindexreg:=hreg;
|
|
|
- if scale<>0 then
|
|
|
- begin
|
|
|
- oper.opr.localscale:=scale;
|
|
|
- scale:=0;
|
|
|
- end;
|
|
|
- end;
|
|
|
- OPR_REFERENCE :
|
|
|
- begin
|
|
|
- if (GotStar) or
|
|
|
- (actasmtoken=AS_STAR) or
|
|
|
- (oper.opr.ref.base<>NR_NO) then
|
|
|
- begin
|
|
|
- if (oper.opr.ref.index<>NR_NO) then
|
|
|
- Message(asmr_e_multiple_index);
|
|
|
- oper.opr.ref.index:=hreg;
|
|
|
- if scale<>0 then
|
|
|
- begin
|
|
|
- oper.opr.ref.scalefactor:=scale;
|
|
|
- scale:=0;
|
|
|
- end;
|
|
|
- end
|
|
|
- else
|
|
|
- oper.opr.ref.base:=hreg;
|
|
|
- end;
|
|
|
- end;
|
|
|
- GotPlus:=false;
|
|
|
- GotStar:=false;
|
|
|
- end;
|
|
|
-
|
|
|
- AS_OFFSET :
|
|
|
- begin
|
|
|
- Consume(AS_OFFSET);
|
|
|
- GotOffset:=true;
|
|
|
- end;
|
|
|
-
|
|
|
- AS_TYPE,
|
|
|
- AS_NOT,
|
|
|
- AS_STRING,
|
|
|
- AS_INTNUM,
|
|
|
- AS_LPAREN : { Constant reference expression }
|
|
|
- begin
|
|
|
- if not GotPlus and not GotStar then
|
|
|
- Message(asmr_e_invalid_reference_syntax);
|
|
|
- BuildConstSymbolExpression(true,true,l,tempstr,tempsymtyp);
|
|
|
-
|
|
|
- if tempstr<>'' then
|
|
|
- begin
|
|
|
- if GotStar then
|
|
|
- Message(asmr_e_only_add_relocatable_symbol);
|
|
|
- if not assigned(oper.opr.ref.symbol) then
|
|
|
- oper.opr.ref.symbol:=current_asmdata.RefAsmSymbol(tempstr)
|
|
|
- else
|
|
|
- Message(asmr_e_cant_have_multiple_relocatable_symbols);
|
|
|
- end;
|
|
|
- case oper.opr.typ of
|
|
|
- OPR_REFERENCE :
|
|
|
- begin
|
|
|
- if GotStar then
|
|
|
- oper.opr.ref.scalefactor:=l
|
|
|
- else if (prevasmtoken = AS_STAR) then
|
|
|
- begin
|
|
|
- if scale<>0 then
|
|
|
- scale:=l*scale
|
|
|
- else
|
|
|
- scale:=l;
|
|
|
- end
|
|
|
- else
|
|
|
- begin
|
|
|
- if negative then
|
|
|
- Dec(oper.opr.ref.offset,l)
|
|
|
- else
|
|
|
- Inc(oper.opr.ref.offset,l);
|
|
|
- end;
|
|
|
- end;
|
|
|
- OPR_LOCAL :
|
|
|
- begin
|
|
|
- if GotStar then
|
|
|
- oper.opr.localscale:=l
|
|
|
- else if (prevasmtoken = AS_STAR) then
|
|
|
- begin
|
|
|
- if scale<>0 then
|
|
|
- scale:=l*scale
|
|
|
- else
|
|
|
- scale:=l;
|
|
|
- end
|
|
|
- else
|
|
|
- begin
|
|
|
- if negative then
|
|
|
- Dec(oper.opr.localsymofs,l)
|
|
|
- else
|
|
|
- Inc(oper.opr.localsymofs,l);
|
|
|
- end;
|
|
|
- end;
|
|
|
- end;
|
|
|
- GotPlus:=(prevasmtoken=AS_PLUS) or
|
|
|
- (prevasmtoken=AS_MINUS);
|
|
|
- if GotPlus then
|
|
|
- negative := prevasmtoken = AS_MINUS;
|
|
|
- GotStar:=(prevasmtoken=AS_STAR);
|
|
|
- end;
|
|
|
-
|
|
|
- AS_RBRACKET :
|
|
|
- begin
|
|
|
- if GotPlus or GotStar then
|
|
|
- Message(asmr_e_invalid_reference_syntax);
|
|
|
- Consume(AS_RBRACKET);
|
|
|
- break;
|
|
|
- end;
|
|
|
-
|
|
|
- else
|
|
|
- Begin
|
|
|
- Message(asmr_e_invalid_reference_syntax);
|
|
|
- RecoverConsume(true);
|
|
|
- break;
|
|
|
- end;
|
|
|
- end;
|
|
|
- until false;
|
|
|
- end;
|
|
|
-
|
|
|
-
|
|
|
- Procedure ti386intreader.BuildConstantOperand(oper: tx86operand);
|
|
|
- var
|
|
|
- l : aint;
|
|
|
- tempstr : string;
|
|
|
- tempsymtyp : tasmsymtype;
|
|
|
- begin
|
|
|
- if not (oper.opr.typ in [OPR_NONE,OPR_CONSTANT]) then
|
|
|
- Message(asmr_e_invalid_operand_type);
|
|
|
- BuildConstSymbolExpression(true,false,l,tempstr,tempsymtyp);
|
|
|
- if tempstr<>'' then
|
|
|
- begin
|
|
|
- oper.opr.typ:=OPR_SYMBOL;
|
|
|
- oper.opr.symofs:=l;
|
|
|
- oper.opr.symbol:=current_asmdata.RefAsmSymbol(tempstr);
|
|
|
- end
|
|
|
- else
|
|
|
- if oper.opr.typ=OPR_NONE then
|
|
|
- begin
|
|
|
- oper.opr.typ:=OPR_CONSTANT;
|
|
|
- oper.opr.val:=l;
|
|
|
- end
|
|
|
- else
|
|
|
- inc(oper.opr.val,l);
|
|
|
- end;
|
|
|
-
|
|
|
-
|
|
|
- Procedure ti386intreader.BuildOperand(oper: tx86operand;istypecast:boolean);
|
|
|
-
|
|
|
- procedure AddLabelOperand(hl:tasmlabel);
|
|
|
- begin
|
|
|
- if (oper.opr.typ=OPR_NONE) 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;
|
|
|
-
|
|
|
- var
|
|
|
- expr : string;
|
|
|
- tempreg : tregister;
|
|
|
- l : aint;
|
|
|
- hl : tasmlabel;
|
|
|
- toffset,
|
|
|
- tsize : aint;
|
|
|
- begin
|
|
|
- expr:='';
|
|
|
- repeat
|
|
|
- if actasmtoken=AS_DOT then
|
|
|
- begin
|
|
|
- if expr<>'' then
|
|
|
- begin
|
|
|
- BuildRecordOffsetSize(expr,toffset,tsize);
|
|
|
- oper.SetSize(tsize,true);
|
|
|
- case oper.opr.typ of
|
|
|
- OPR_LOCAL :
|
|
|
- begin
|
|
|
- { don't allow direct access to fields of parameters, becuase that
|
|
|
- will generate buggy code. Allow it only for explicit typecasting
|
|
|
- and when the parameter is in a register (delphi compatible) }
|
|
|
- if (not oper.hastype) and
|
|
|
- (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,toffset)
|
|
|
- end;
|
|
|
- OPR_CONSTANT :
|
|
|
- inc(oper.opr.val,toffset);
|
|
|
- OPR_REFERENCE :
|
|
|
- inc(oper.opr.ref.offset,toffset);
|
|
|
- OPR_NONE :
|
|
|
- begin
|
|
|
- oper.opr.typ:=OPR_CONSTANT;
|
|
|
- oper.opr.val:=toffset;
|
|
|
- end;
|
|
|
- else
|
|
|
- internalerror(200309222);
|
|
|
- end;
|
|
|
- expr:='';
|
|
|
- end
|
|
|
- else
|
|
|
- begin
|
|
|
- { See it as a separator }
|
|
|
- Consume(AS_DOT);
|
|
|
- end;
|
|
|
- end;
|
|
|
-
|
|
|
- case actasmtoken of
|
|
|
- AS_OFFSET,
|
|
|
- AS_SIZEOF,
|
|
|
- AS_TYPE,
|
|
|
- AS_NOT,
|
|
|
- AS_STRING,
|
|
|
- AS_PLUS,
|
|
|
- AS_MINUS,
|
|
|
- AS_LPAREN,
|
|
|
- AS_INTNUM :
|
|
|
- begin
|
|
|
- case oper.opr.typ of
|
|
|
- OPR_REFERENCE :
|
|
|
- inc(oper.opr.ref.offset,BuildRefConstExpression);
|
|
|
- OPR_LOCAL :
|
|
|
- inc(oper.opr.localsymofs,BuildConstExpression);
|
|
|
- OPR_NONE,
|
|
|
- OPR_CONSTANT :
|
|
|
- BuildConstantOperand(oper);
|
|
|
- else
|
|
|
- Message(asmr_e_invalid_operand_type);
|
|
|
- end;
|
|
|
- end;
|
|
|
-
|
|
|
- AS_PTR :
|
|
|
- begin
|
|
|
- if not oper.hastype then
|
|
|
- begin
|
|
|
- if (oper.opr.typ=OPR_CONSTANT) then
|
|
|
- begin
|
|
|
- oper.typesize:=oper.opr.val;
|
|
|
- { reset constant value of operand }
|
|
|
- oper.opr.typ:=OPR_NONE;
|
|
|
- oper.opr.val:=0;
|
|
|
- end
|
|
|
- else
|
|
|
- Message(asmr_e_syn_operand);
|
|
|
- end;
|
|
|
- Consume(AS_PTR);
|
|
|
- oper.InitRef;
|
|
|
- BuildOperand(oper,false);
|
|
|
- end;
|
|
|
-
|
|
|
- AS_ID : { A constant expression, or a Variable ref. }
|
|
|
- Begin
|
|
|
- { Label or Special symbol reference? }
|
|
|
- if actasmpattern[1] = '@' then
|
|
|
- Begin
|
|
|
- if actasmpattern = '@RESULT' then
|
|
|
- Begin
|
|
|
- oper.SetupResult;
|
|
|
- Consume(AS_ID);
|
|
|
- end
|
|
|
- else
|
|
|
- if (actasmpattern = '@CODE') or (actasmpattern = '@DATA') then
|
|
|
- begin
|
|
|
- Message(asmr_w_CODE_and_DATA_not_supported);
|
|
|
- Consume(AS_ID);
|
|
|
- end
|
|
|
- else
|
|
|
- { Local Label }
|
|
|
- begin
|
|
|
- CreateLocalLabel(actasmpattern,hl,false);
|
|
|
- Consume(AS_ID);
|
|
|
- AddLabelOperand(hl);
|
|
|
- end;
|
|
|
- end
|
|
|
- else
|
|
|
- { support result for delphi modes }
|
|
|
- if (m_objpas in aktmodeswitches) and (actasmpattern='RESULT') then
|
|
|
- begin
|
|
|
- oper.SetUpResult;
|
|
|
- Consume(AS_ID);
|
|
|
- end
|
|
|
- { probably a variable or normal expression }
|
|
|
- { or a procedure (such as in CALL ID) }
|
|
|
- else
|
|
|
- Begin
|
|
|
- { is it a constant ? }
|
|
|
- if SearchIConstant(actasmpattern,l) then
|
|
|
- Begin
|
|
|
- case oper.opr.typ of
|
|
|
- OPR_REFERENCE :
|
|
|
- inc(oper.opr.ref.offset,BuildRefConstExpression);
|
|
|
- OPR_LOCAL :
|
|
|
- inc(oper.opr.localsymofs,BuildRefConstExpression);
|
|
|
- OPR_NONE,
|
|
|
- OPR_CONSTANT :
|
|
|
- BuildConstantOperand(oper);
|
|
|
- else
|
|
|
- Message(asmr_e_invalid_operand_type);
|
|
|
- end;
|
|
|
- end
|
|
|
- else
|
|
|
- { Check for pascal label }
|
|
|
- if SearchLabel(actasmpattern,hl,false) then
|
|
|
- begin
|
|
|
- Consume(AS_ID);
|
|
|
- AddLabelOperand(hl);
|
|
|
- end
|
|
|
- else
|
|
|
- { is it a normal variable ? }
|
|
|
- Begin
|
|
|
- expr:=actasmpattern;
|
|
|
- Consume(AS_ID);
|
|
|
- { typecasting? }
|
|
|
- if SearchType(expr,l) then
|
|
|
- begin
|
|
|
- oper.hastype:=true;
|
|
|
- oper.typesize:=l;
|
|
|
- case actasmtoken of
|
|
|
- AS_LPAREN :
|
|
|
- begin
|
|
|
- { Support Type([Reference]) }
|
|
|
- Consume(AS_LPAREN);
|
|
|
- BuildOperand(oper,true);
|
|
|
- Consume(AS_RPAREN);
|
|
|
- end;
|
|
|
- AS_LBRACKET :
|
|
|
- begin
|
|
|
- { Support Var.Type[Index] }
|
|
|
- { Convert @label.Byte[1] to reference }
|
|
|
- if oper.opr.typ=OPR_SYMBOL then
|
|
|
- oper.initref;
|
|
|
- end;
|
|
|
- end;
|
|
|
- end
|
|
|
- else
|
|
|
- begin
|
|
|
- if not oper.SetupVar(expr,false) then
|
|
|
- Begin
|
|
|
- { not a variable, check special variables.. }
|
|
|
- if expr = 'SELF' then
|
|
|
- oper.SetupSelf
|
|
|
- else
|
|
|
- Message1(sym_e_unknown_id,expr);
|
|
|
- expr:='';
|
|
|
- end;
|
|
|
- end;
|
|
|
- end;
|
|
|
- end;
|
|
|
- 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;
|
|
|
- BuildReference(oper);
|
|
|
- end
|
|
|
- else
|
|
|
- { Simple register }
|
|
|
- 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[reg_cgsize(oper.opr.reg)],true);
|
|
|
- end;
|
|
|
- end;
|
|
|
-
|
|
|
- AS_LBRACKET: { a variable reference, register ref. or a constant reference }
|
|
|
- Begin
|
|
|
- BuildReference(oper);
|
|
|
- end;
|
|
|
-
|
|
|
- AS_SEG :
|
|
|
- Begin
|
|
|
- Message(asmr_e_seg_not_supported);
|
|
|
- Consume(actasmtoken);
|
|
|
- end;
|
|
|
-
|
|
|
- AS_DWORD,
|
|
|
- AS_BYTE,
|
|
|
- AS_WORD,
|
|
|
- AS_TBYTE,
|
|
|
- AS_DQWORD,
|
|
|
- AS_QWORD :
|
|
|
- begin
|
|
|
- { Type specifier }
|
|
|
- oper.hastype:=true;
|
|
|
- oper.typesize:=0;
|
|
|
- case actasmtoken of
|
|
|
- AS_DWORD : oper.typesize:=4;
|
|
|
- AS_WORD : oper.typesize:=2;
|
|
|
- AS_BYTE : oper.typesize:=1;
|
|
|
- AS_QWORD : oper.typesize:=8;
|
|
|
- AS_DQWORD : oper.typesize:=16;
|
|
|
- AS_TBYTE : oper.typesize:=10;
|
|
|
- end;
|
|
|
- Consume(actasmtoken);
|
|
|
- if (actasmtoken=AS_LPAREN) then
|
|
|
- begin
|
|
|
- { Support Type([Reference]) }
|
|
|
- Consume(AS_LPAREN);
|
|
|
- BuildOperand(oper,true);
|
|
|
- Consume(AS_RPAREN);
|
|
|
- end;
|
|
|
- end;
|
|
|
+ rabase,systems,rax86,aasmcpu;
|
|
|
|
|
|
- AS_SEPARATOR,
|
|
|
- AS_END,
|
|
|
- AS_COMMA,
|
|
|
- AS_COLON:
|
|
|
- begin
|
|
|
- break;
|
|
|
- end;
|
|
|
-
|
|
|
- AS_RPAREN:
|
|
|
- begin
|
|
|
- if not istypecast then
|
|
|
- begin
|
|
|
- Message(asmr_e_syn_operand);
|
|
|
- Consume(AS_RPAREN);
|
|
|
- end
|
|
|
- else
|
|
|
- break;
|
|
|
- end;
|
|
|
-
|
|
|
- else
|
|
|
- begin
|
|
|
- Message(asmr_e_syn_operand);
|
|
|
- RecoverConsume(true);
|
|
|
- break;
|
|
|
- end;
|
|
|
- end;
|
|
|
- until false;
|
|
|
- { End of operand, update size if a typecast is forced }
|
|
|
- if (oper.typesize<>0) and
|
|
|
- (oper.opr.typ in [OPR_REFERENCE,OPR_LOCAL]) then
|
|
|
- oper.SetSize(oper.typesize,true);
|
|
|
- end;
|
|
|
-
|
|
|
-
|
|
|
- Procedure ti386intreader.BuildOpCode(instr : tx86instruction);
|
|
|
+{
|
|
|
+ procedure ti386intreader.handleopcode;
|
|
|
var
|
|
|
- PrefixOp,OverrideOp: tasmop;
|
|
|
- operandnum : longint;
|
|
|
- is_far_const:boolean;
|
|
|
- i:byte;
|
|
|
+ instr : Tx86Instruction;
|
|
|
begin
|
|
|
- PrefixOp:=A_None;
|
|
|
- OverrideOp:=A_None;
|
|
|
- is_far_const:=false;
|
|
|
- { prefix seg opcode / prefix opcode }
|
|
|
- repeat
|
|
|
- if is_prefix(actopcode) then
|
|
|
- with instr do
|
|
|
- begin
|
|
|
- OpOrder:=op_intel;
|
|
|
- PrefixOp:=ActOpcode;
|
|
|
- opcode:=ActOpcode;
|
|
|
- condition:=ActCondition;
|
|
|
- opsize:=ActOpsize;
|
|
|
- ConcatInstruction(curlist);
|
|
|
- consume(AS_OPCODE);
|
|
|
- end
|
|
|
- else
|
|
|
- if is_override(actopcode) then
|
|
|
- with instr do
|
|
|
- begin
|
|
|
- OpOrder:=op_intel;
|
|
|
- OverrideOp:=ActOpcode;
|
|
|
- opcode:=ActOpcode;
|
|
|
- condition:=ActCondition;
|
|
|
- opsize:=ActOpsize;
|
|
|
- ConcatInstruction(curlist);
|
|
|
- consume(AS_OPCODE);
|
|
|
- end
|
|
|
- else
|
|
|
- break;
|
|
|
- { allow for newline after prefix or override }
|
|
|
- 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(false);
|
|
|
- exit;
|
|
|
- end;
|
|
|
- { Fill the instr object with the current state }
|
|
|
- with instr do
|
|
|
- begin
|
|
|
- OpOrder:=op_intel;
|
|
|
- Opcode:=ActOpcode;
|
|
|
- condition:=ActCondition;
|
|
|
- opsize:=ActOpsize;
|
|
|
-
|
|
|
- { 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);
|
|
|
- end;
|
|
|
- { We are reading operands, so opcode will be an AS_ID }
|
|
|
- operandnum:=1;
|
|
|
- is_far_const:=false;
|
|
|
- Consume(AS_OPCODE);
|
|
|
- { Zero operand opcode ? }
|
|
|
- if actasmtoken in [AS_SEPARATOR,AS_END] then
|
|
|
- begin
|
|
|
- operandnum:=0;
|
|
|
- exit;
|
|
|
- end;
|
|
|
- { Read Operands }
|
|
|
- repeat
|
|
|
- case actasmtoken of
|
|
|
- { End of asm operands for this opcode }
|
|
|
- AS_END,
|
|
|
- AS_SEPARATOR :
|
|
|
- break;
|
|
|
-
|
|
|
- { Operand delimiter }
|
|
|
- AS_COMMA :
|
|
|
- begin
|
|
|
- if operandnum > Max_Operands then
|
|
|
- Message(asmr_e_too_many_operands)
|
|
|
- else
|
|
|
- Inc(operandnum);
|
|
|
- Consume(AS_COMMA);
|
|
|
- end;
|
|
|
-
|
|
|
- {Far constant, i.e. jmp $0000:$11111111.}
|
|
|
- AS_COLON:
|
|
|
- begin
|
|
|
- is_far_const:=true;
|
|
|
- if operandnum>1 then
|
|
|
- message(asmr_e_too_many_operands)
|
|
|
- else
|
|
|
- inc(operandnum);
|
|
|
- consume(AS_COLON);
|
|
|
- end;
|
|
|
-
|
|
|
- { Type specifier }
|
|
|
- AS_NEAR,
|
|
|
- AS_FAR :
|
|
|
- begin
|
|
|
- if actasmtoken = AS_NEAR then
|
|
|
- begin
|
|
|
- Message(asmr_w_near_ignored);
|
|
|
- instr.opsize:=S_NEAR;
|
|
|
- end
|
|
|
- else
|
|
|
- begin
|
|
|
- Message(asmr_w_far_ignored);
|
|
|
- instr.opsize:=S_FAR;
|
|
|
- end;
|
|
|
- Consume(actasmtoken);
|
|
|
- if actasmtoken=AS_PTR then
|
|
|
- begin
|
|
|
- Consume(AS_PTR);
|
|
|
- instr.Operands[operandnum].InitRef;
|
|
|
- end;
|
|
|
- BuildOperand(instr.Operands[operandnum] as tx86operand,false);
|
|
|
- end;
|
|
|
- else
|
|
|
- BuildOperand(instr.Operands[operandnum] as tx86operand,false);
|
|
|
- end; { end case }
|
|
|
- until false;
|
|
|
- instr.ops:=operandnum;
|
|
|
- { Check operands }
|
|
|
- for i:=1 to operandnum do
|
|
|
- begin
|
|
|
- if is_far_const and
|
|
|
- (instr.operands[i].opr.typ<>OPR_CONSTANT) then
|
|
|
- message(asmr_e_expr_illegal)
|
|
|
- else
|
|
|
- if instr.operands[i].opr.typ=OPR_NONE then
|
|
|
- Message(asmr_e_syntax_error);
|
|
|
- end;
|
|
|
- end;
|
|
|
-
|
|
|
-
|
|
|
- Procedure ti386intreader.BuildConstant(constsize: byte);
|
|
|
- var
|
|
|
- asmsymtyp : tasmsymtype;
|
|
|
- asmsym,
|
|
|
- expr: string;
|
|
|
- value : aint;
|
|
|
- Begin
|
|
|
- Repeat
|
|
|
- Case actasmtoken of
|
|
|
- AS_STRING:
|
|
|
- Begin
|
|
|
- { DD and DW cases }
|
|
|
- if constsize <> 1 then
|
|
|
- Begin
|
|
|
- if Not PadZero(actasmpattern,constsize) then
|
|
|
- Message(scan_f_string_exceeds_line);
|
|
|
- end;
|
|
|
- expr:=actasmpattern;
|
|
|
- Consume(AS_STRING);
|
|
|
- Case actasmtoken of
|
|
|
- AS_COMMA:
|
|
|
- Consume(AS_COMMA);
|
|
|
- AS_END,
|
|
|
- AS_SEPARATOR: ;
|
|
|
- else
|
|
|
- Message(asmr_e_invalid_string_expression);
|
|
|
- end;
|
|
|
- ConcatString(curlist,expr);
|
|
|
- end;
|
|
|
- AS_PLUS,
|
|
|
- AS_MINUS,
|
|
|
- AS_LPAREN,
|
|
|
- AS_NOT,
|
|
|
- AS_INTNUM,
|
|
|
- AS_ID :
|
|
|
- Begin
|
|
|
- BuildConstSymbolExpression(false,false,value,asmsym,asmsymtyp);
|
|
|
- if asmsym<>'' then
|
|
|
- begin
|
|
|
- if constsize<>sizeof(aint) then
|
|
|
- Message1(asmr_w_const32bit_for_address,asmsym);
|
|
|
- ConcatConstSymbol(curlist,asmsym,asmsymtyp,value)
|
|
|
- end
|
|
|
- else
|
|
|
- ConcatConstant(curlist,value,constsize);
|
|
|
- end;
|
|
|
- AS_COMMA:
|
|
|
- begin
|
|
|
- Consume(AS_COMMA);
|
|
|
- end;
|
|
|
- AS_ALIGN,
|
|
|
- AS_DB,
|
|
|
- AS_DW,
|
|
|
- AS_DD,
|
|
|
- AS_OPCODE,
|
|
|
- AS_END,
|
|
|
- AS_SEPARATOR:
|
|
|
- break;
|
|
|
- else
|
|
|
- begin
|
|
|
- Message(asmr_e_syn_constant);
|
|
|
- RecoverConsume(false);
|
|
|
- end
|
|
|
- end;
|
|
|
- Until false;
|
|
|
+ instr:=Tx86Instruction.Create(Tx86Operand);
|
|
|
+ instr.OpOrder:=op_att;
|
|
|
+ BuildOpcode(instr);
|
|
|
+ instr.AddReferenceSizes;
|
|
|
+ instr.SetInstructionOpsize;
|
|
|
+ {
|
|
|
+ instr.CheckOperandSizes;
|
|
|
+ }
|
|
|
+ instr.ConcatInstruction(curlist);
|
|
|
+ instr.Free;
|
|
|
end;
|
|
|
-
|
|
|
-
|
|
|
- function ti386intreader.Assemble: tlinkedlist;
|
|
|
- Var
|
|
|
- hl : tasmlabel;
|
|
|
- instr : Tx86Instruction;
|
|
|
- Begin
|
|
|
- Message1(asmr_d_start_reading,'intel');
|
|
|
- inexpression:=FALSE;
|
|
|
- firsttoken:=TRUE;
|
|
|
- { sets up all opcode and register tables in uppercase
|
|
|
- done in the construtor now
|
|
|
- if not _asmsorted then
|
|
|
- Begin
|
|
|
- SetupTables;
|
|
|
- _asmsorted:=TRUE;
|
|
|
- end;
|
|
|
- }
|
|
|
- curlist:=TAsmList.Create;
|
|
|
- { setup label linked list }
|
|
|
- LocalLabelList:=TLocalLabelList.Create;
|
|
|
- { start tokenizer }
|
|
|
- c:=current_scanner.asmgetcharstart;
|
|
|
- gettoken;
|
|
|
- { main loop }
|
|
|
- repeat
|
|
|
- case actasmtoken of
|
|
|
- AS_LLABEL:
|
|
|
- Begin
|
|
|
- if CreateLocalLabel(actasmpattern,hl,true) then
|
|
|
- ConcatLabel(curlist,hl);
|
|
|
- Consume(AS_LLABEL);
|
|
|
- end;
|
|
|
-
|
|
|
- AS_LABEL:
|
|
|
- Begin
|
|
|
- if SearchLabel(upper(actasmpattern),hl,true) then
|
|
|
- ConcatLabel(curlist,hl)
|
|
|
- else
|
|
|
- Message1(asmr_e_unknown_label_identifier,actasmpattern);
|
|
|
- Consume(AS_LABEL);
|
|
|
- end;
|
|
|
-
|
|
|
- AS_DW :
|
|
|
- Begin
|
|
|
- inexpression:=true;
|
|
|
- Consume(AS_DW);
|
|
|
- BuildConstant(2);
|
|
|
- inexpression:=false;
|
|
|
- end;
|
|
|
-
|
|
|
- AS_DB :
|
|
|
- Begin
|
|
|
- inexpression:=true;
|
|
|
- Consume(AS_DB);
|
|
|
- BuildConstant(1);
|
|
|
- inexpression:=false;
|
|
|
- end;
|
|
|
-
|
|
|
- AS_DD :
|
|
|
- Begin
|
|
|
- inexpression:=true;
|
|
|
- Consume(AS_DD);
|
|
|
- BuildConstant(4);
|
|
|
- inexpression:=false;
|
|
|
- end;
|
|
|
-
|
|
|
- AS_ALIGN:
|
|
|
- Begin
|
|
|
- Consume(AS_ALIGN);
|
|
|
- ConcatAlign(curlist,BuildConstExpression);
|
|
|
- if actasmtoken<>AS_SEPARATOR then
|
|
|
- Consume(AS_SEPARATOR);
|
|
|
- end;
|
|
|
-
|
|
|
- AS_OPCODE :
|
|
|
- Begin
|
|
|
- instr:=Tx86Instruction.Create(Tx86Operand);
|
|
|
- BuildOpcode(instr);
|
|
|
- with instr do
|
|
|
- begin
|
|
|
- { We need AT&T style operands }
|
|
|
- Swapoperands;
|
|
|
- { Must be done with args in ATT order }
|
|
|
- CheckNonCommutativeOpcodes;
|
|
|
- AddReferenceSizes;
|
|
|
- SetInstructionOpsize;
|
|
|
- CheckOperandSizes;
|
|
|
- ConcatInstruction(curlist);
|
|
|
- end;
|
|
|
- instr.Free;
|
|
|
- end;
|
|
|
-
|
|
|
- AS_SEPARATOR :
|
|
|
- Begin
|
|
|
- Consume(AS_SEPARATOR);
|
|
|
- end;
|
|
|
-
|
|
|
- AS_END :
|
|
|
- break; { end assembly block }
|
|
|
-
|
|
|
- else
|
|
|
- Begin
|
|
|
- Message(asmr_e_syntax_error);
|
|
|
- RecoverConsume(false);
|
|
|
- end;
|
|
|
- end; { end case }
|
|
|
- until false;
|
|
|
- { Check LocalLabelList }
|
|
|
- LocalLabelList.CheckEmitted;
|
|
|
- LocalLabelList.Free;
|
|
|
- { Return the list in an asmnode }
|
|
|
- assemble:=curlist;
|
|
|
- Message1(asmr_d_finish_reading,'intel');
|
|
|
- end;
|
|
|
-
|
|
|
+}
|
|
|
|
|
|
{*****************************************************************************
|
|
|
Initialize
|
florian