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263 lines
11 KiB
ObjectPascal
263 lines
11 KiB
ObjectPascal
{
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$Id$
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Copyright (c) 1998-2000 by Florian Klaempfl
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Load the system unit, create required defs for systemunit
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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****************************************************************************
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}
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unit psystem;
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interface
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uses symtable;
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procedure insertinternsyms(p : psymtable);
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procedure insert_intern_types(p : psymtable);
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procedure readconstdefs;
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procedure createconstdefs;
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implementation
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uses
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globtype,globals,symconst,tree;
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procedure insertinternsyms(p : psymtable);
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{
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all intern procedures for system unit
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}
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begin
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p^.insert(new(psyssym,init('Concat',in_concat_x)));
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p^.insert(new(psyssym,init('Write',in_write_x)));
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p^.insert(new(psyssym,init('WriteLn',in_writeln_x)));
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p^.insert(new(psyssym,init('Assigned',in_assigned_x)));
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p^.insert(new(psyssym,init('Read',in_read_x)));
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p^.insert(new(psyssym,init('ReadLn',in_readln_x)));
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p^.insert(new(psyssym,init('Ofs',in_ofs_x)));
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p^.insert(new(psyssym,init('SizeOf',in_sizeof_x)));
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p^.insert(new(psyssym,init('TypeOf',in_typeof_x)));
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p^.insert(new(psyssym,init('Low',in_low_x)));
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p^.insert(new(psyssym,init('High',in_high_x)));
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p^.insert(new(psyssym,init('Seg',in_seg_x)));
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p^.insert(new(psyssym,init('Ord',in_ord_x)));
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p^.insert(new(psyssym,init('Pred',in_pred_x)));
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p^.insert(new(psyssym,init('Succ',in_succ_x)));
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p^.insert(new(psyssym,init('Exclude',in_exclude_x_y)));
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p^.insert(new(psyssym,init('Include',in_include_x_y)));
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p^.insert(new(psyssym,init('Break',in_break)));
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p^.insert(new(psyssym,init('Continue',in_continue)));
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p^.insert(new(psyssym,init('Dec',in_dec_x)));
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p^.insert(new(psyssym,init('Inc',in_inc_x)));
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p^.insert(new(psyssym,init('Str',in_str_x_string)));
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p^.insert(new(psyssym,init('Assert',in_assert_x_y)));
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p^.insert(new(psyssym,init('Val',in_val_x)));
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p^.insert(new(psyssym,init('Addr',in_addr_x)));
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p^.insert(new(psyssym,init('TypeInfo',in_typeinfo_x)));
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end;
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procedure insert_intern_types(p : psymtable);
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{
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all the types inserted into the system unit
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}
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var
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{ several defs to simulate more or less C++ objects for GDB }
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vmtdef : precorddef;
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vmtarraydef : parraydef;
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vmtsymtable : psymtable;
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begin
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{ Internal types }
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p^.insert(new(ptypesym,initdef('$formal',cformaldef)));
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p^.insert(new(ptypesym,initdef('$void',voiddef)));
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p^.insert(new(ptypesym,initdef('$byte',u8bitdef)));
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p^.insert(new(ptypesym,initdef('$word',u16bitdef)));
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p^.insert(new(ptypesym,initdef('$ulong',u32bitdef)));
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p^.insert(new(ptypesym,initdef('$longint',s32bitdef)));
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p^.insert(new(ptypesym,initdef('$qword',cu64bitdef)));
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p^.insert(new(ptypesym,initdef('$int64',cs64bitdef)));
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p^.insert(new(ptypesym,initdef('$char',cchardef)));
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p^.insert(new(ptypesym,initdef('$widechar',cwidechardef)));
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p^.insert(new(ptypesym,initdef('$shortstring',cshortstringdef)));
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p^.insert(new(ptypesym,initdef('$longstring',clongstringdef)));
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p^.insert(new(ptypesym,initdef('$ansistring',cansistringdef)));
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p^.insert(new(ptypesym,initdef('$widestring',cwidestringdef)));
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p^.insert(new(ptypesym,initdef('$openshortstring',openshortstringdef)));
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p^.insert(new(ptypesym,initdef('$boolean',booldef)));
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p^.insert(new(ptypesym,initdef('$void_pointer',voidpointerdef)));
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p^.insert(new(ptypesym,initdef('$char_pointer',charpointerdef)));
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p^.insert(new(ptypesym,initdef('$void_farpointer',voidfarpointerdef)));
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p^.insert(new(ptypesym,initdef('$openchararray',openchararraydef)));
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p^.insert(new(ptypesym,initdef('$file',cfiledef)));
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p^.insert(new(ptypesym,initdef('$s32real',s32floatdef)));
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p^.insert(new(ptypesym,initdef('$s64real',s64floatdef)));
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p^.insert(new(ptypesym,initdef('$s80real',s80floatdef)));
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{$ifdef SUPPORT_FIXED}
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p^.insert(new(ptypesym,initdef('$s32fixed',s32fixeddef)));
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{$endif SUPPORT_FIXED}
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{ Add a type for virtual method tables in lowercase }
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{ so it isn't reachable! }
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vmtsymtable:=new(psymtable,init(recordsymtable));
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vmtdef:=new(precorddef,init(vmtsymtable));
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pvmtdef:=new(ppointerdef,initdef(vmtdef));
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vmtsymtable^.insert(new(pvarsym,initdef('$parent',pvmtdef)));
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vmtsymtable^.insert(new(pvarsym,initdef('$length',globaldef('longint'))));
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vmtsymtable^.insert(new(pvarsym,initdef('$mlength',globaldef('longint'))));
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vmtarraydef:=new(parraydef,init(0,1,s32bitdef));
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vmtarraydef^.elementtype.setdef(voidpointerdef);
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vmtsymtable^.insert(new(pvarsym,initdef('$__pfn',vmtarraydef)));
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p^.insert(new(ptypesym,initdef('$__vtbl_ptr_type',vmtdef)));
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p^.insert(new(ptypesym,initdef('$pvmt',pvmtdef)));
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vmtarraydef:=new(parraydef,init(0,1,s32bitdef));
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vmtarraydef^.elementtype.setdef(pvmtdef);
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p^.insert(new(ptypesym,initdef('$vtblarray',vmtarraydef)));
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insertinternsyms(p);
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{ Normal types }
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p^.insert(new(ptypesym,initdef('Single',s32floatdef)));
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p^.insert(new(ptypesym,initdef('Double',s64floatdef)));
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p^.insert(new(ptypesym,initdef('Extended',s80floatdef)));
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p^.insert(new(ptypesym,initdef('Real',s64floatdef)));
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{$ifdef i386}
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p^.insert(new(ptypesym,initdef('Comp',new(pfloatdef,init(s64comp)))));
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{$endif}
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p^.insert(new(ptypesym,initdef('Pointer',voidpointerdef)));
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p^.insert(new(ptypesym,initdef('FarPointer',voidfarpointerdef)));
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p^.insert(new(ptypesym,initdef('ShortString',cshortstringdef)));
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p^.insert(new(ptypesym,initdef('LongString',clongstringdef)));
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p^.insert(new(ptypesym,initdef('AnsiString',cansistringdef)));
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p^.insert(new(ptypesym,initdef('WideString',cwidestringdef)));
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p^.insert(new(ptypesym,initdef('Boolean',booldef)));
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p^.insert(new(ptypesym,initdef('ByteBool',booldef)));
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p^.insert(new(ptypesym,initdef('WordBool',new(porddef,init(bool16bit,0,1)))));
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p^.insert(new(ptypesym,initdef('LongBool',new(porddef,init(bool32bit,0,1)))));
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p^.insert(new(ptypesym,initdef('Char',cchardef)));
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p^.insert(new(ptypesym,initdef('WideChar',cwidechardef)));
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p^.insert(new(ptypesym,initdef('Text',new(pfiledef,inittext))));
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p^.insert(new(ptypesym,initdef('Cardinal',u32bitdef)));
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{$ifdef SUPPORT_FIXED}
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p^.insert(new(ptypesym,initdef('Fixed',new(pfloatdef,init(f32bit)))));
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p^.insert(new(ptypesym,initdef('Fixed16',new(pfloatdef,init(f16bit)))));
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{$endif SUPPORT_FIXED}
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p^.insert(new(ptypesym,initdef('QWord',cu64bitdef)));
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p^.insert(new(ptypesym,initdef('Int64',cs64bitdef)));
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p^.insert(new(ptypesym,initdef('TypedFile',new(pfiledef,inittypeddef(voiddef)))));
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end;
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procedure readconstdefs;
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{
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Load all default definitions for consts from the system unit
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}
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begin
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u8bitdef:=porddef(globaldef('byte'));
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u16bitdef:=porddef(globaldef('word'));
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u32bitdef:=porddef(globaldef('ulong'));
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s32bitdef:=porddef(globaldef('longint'));
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cu64bitdef:=porddef(globaldef('qword'));
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cs64bitdef:=porddef(globaldef('int64'));
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cformaldef:=pformaldef(globaldef('formal'));
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voiddef:=porddef(globaldef('void'));
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cchardef:=porddef(globaldef('char'));
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cwidechardef:=porddef(globaldef('char'));
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cshortstringdef:=pstringdef(globaldef('shortstring'));
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clongstringdef:=pstringdef(globaldef('longstring'));
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cansistringdef:=pstringdef(globaldef('ansistring'));
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cwidestringdef:=pstringdef(globaldef('widestring'));
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openshortstringdef:=pstringdef(globaldef('openshortstring'));
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openchararraydef:=parraydef(globaldef('openchararray'));
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s32floatdef:=pfloatdef(globaldef('s32real'));
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s64floatdef:=pfloatdef(globaldef('s64real'));
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s80floatdef:=pfloatdef(globaldef('s80real'));
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{$ifdef SUPPORT_FIXED}
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s32fixeddef:=pfloatdef(globaldef('s32fixed'));
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{$endif SUPPORT_FIXED}
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booldef:=porddef(globaldef('boolean'));
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voidpointerdef:=ppointerdef(globaldef('void_pointer'));
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charpointerdef:=ppointerdef(globaldef('char_pointer'));
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voidfarpointerdef:=ppointerdef(globaldef('void_farpointer'));
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cfiledef:=pfiledef(globaldef('file'));
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pvmtdef:=ppointerdef(globaldef('pvmt'));
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end;
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procedure createconstdefs;
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{
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Create all default definitions for consts for the system unit
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}
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var
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oldregisterdef : boolean;
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begin
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{ create definitions for constants }
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oldregisterdef:=registerdef;
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registerdef:=false;
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cformaldef:=new(pformaldef,init);
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voiddef:=new(porddef,init(uvoid,0,0));
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u8bitdef:=new(porddef,init(u8bit,0,255));
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u16bitdef:=new(porddef,init(u16bit,0,65535));
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u32bitdef:=new(porddef,init(u32bit,0,$ffffffff));
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s32bitdef:=new(porddef,init(s32bit,$80000000,$7fffffff));
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cu64bitdef:=new(porddef,init(u64bit,0,0));
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cs64bitdef:=new(porddef,init(s64bit,0,0));
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booldef:=new(porddef,init(bool8bit,0,1));
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cchardef:=new(porddef,init(uchar,0,255));
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cwidechardef:=new(porddef,init(uwidechar,0,65535));
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cshortstringdef:=new(pstringdef,shortinit(255));
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{ should we give a length to the default long and ansi string definition ?? }
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clongstringdef:=new(pstringdef,longinit(-1));
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cansistringdef:=new(pstringdef,ansiinit(-1));
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cwidestringdef:=new(pstringdef,wideinit(-1));
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{ length=0 for shortstring is open string (needed for readln(string) }
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openshortstringdef:=new(pstringdef,shortinit(0));
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openchararraydef:=new(parraydef,init(0,-1,s32bitdef));
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parraydef(openchararraydef)^.elementtype.setdef(cchardef);
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{$ifdef i386}
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s32floatdef:=new(pfloatdef,init(s32real));
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s64floatdef:=new(pfloatdef,init(s64real));
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s80floatdef:=new(pfloatdef,init(s80real));
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{$endif}
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{$ifdef m68k}
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s32floatdef:=new(pfloatdef,init(s32real));
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s64floatdef:=new(pfloatdef,init(s64real));
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if (cs_fp_emulation in aktmoduleswitches) then
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s80floatdef:=new(pfloatdef,init(s32real))
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else
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s80floatdef:=new(pfloatdef,init(s80real));
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{$endif}
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{$ifdef SUPPORT_FIXED}
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s32fixeddef:=new(pfloatdef,init(f32bit));
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{$endif SUPPORT_FIXED}
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{ some other definitions }
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voidpointerdef:=new(ppointerdef,initdef(voiddef));
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charpointerdef:=new(ppointerdef,initdef(cchardef));
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voidfarpointerdef:=new(ppointerdef,initfardef(voiddef));
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cfiledef:=new(pfiledef,inituntyped);
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registerdef:=oldregisterdef;
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end;
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end.
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{
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$Log$
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Revision 1.4 2000-08-27 20:19:39 peter
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* store strings with case in ppu, when an internal symbol is created
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a '$' is prefixed so it's not automatic uppercased
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Revision 1.3 2000/08/16 13:06:06 florian
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+ support of 64 bit integer constants
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Revision 1.2 2000/07/13 11:32:47 michael
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+ removed logs
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} |