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fpc/compiler/psystem.pas
peter 0887060ff2 * truncated log to 20 revs
1999-11-06 14:34:16 +00:00

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12 KiB
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{
$Id$
Copyright (c) 1993-98 by Florian Klaempfl
Load the system unit, create required defs for systemunit
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
****************************************************************************
}
unit psystem;
interface
uses symtable;
procedure insertinternsyms(p : psymtable);
procedure insert_intern_types(p : psymtable);
procedure readconstdefs;
procedure createconstdefs;
implementation
uses
globtype,globals,symconst,tree;
procedure insertinternsyms(p : psymtable);
{
all intern procedures for system unit
}
begin
p^.insert(new(psyssym,init('CONCAT',in_concat_x)));
p^.insert(new(psyssym,init('WRITE',in_write_x)));
p^.insert(new(psyssym,init('WRITELN',in_writeln_x)));
p^.insert(new(psyssym,init('ASSIGNED',in_assigned_x)));
p^.insert(new(psyssym,init('READ',in_read_x)));
p^.insert(new(psyssym,init('READLN',in_readln_x)));
p^.insert(new(psyssym,init('OFS',in_ofs_x)));
p^.insert(new(psyssym,init('SIZEOF',in_sizeof_x)));
p^.insert(new(psyssym,init('TYPEOF',in_typeof_x)));
p^.insert(new(psyssym,init('LOW',in_low_x)));
p^.insert(new(psyssym,init('HIGH',in_high_x)));
p^.insert(new(psyssym,init('SEG',in_seg_x)));
p^.insert(new(psyssym,init('ORD',in_ord_x)));
p^.insert(new(psyssym,init('PRED',in_pred_x)));
p^.insert(new(psyssym,init('SUCC',in_succ_x)));
p^.insert(new(psyssym,init('EXCLUDE',in_exclude_x_y)));
p^.insert(new(psyssym,init('INCLUDE',in_include_x_y)));
p^.insert(new(psyssym,init('BREAK',in_break)));
p^.insert(new(psyssym,init('CONTINUE',in_continue)));
p^.insert(new(psyssym,init('DEC',in_dec_x)));
p^.insert(new(psyssym,init('INC',in_inc_x)));
p^.insert(new(psyssym,init('STR',in_str_x_string)));
p^.insert(new(psyssym,init('ASSERT',in_assert_x_y)));
p^.insert(new(psyssym,init('VAL',in_val_x)));
p^.insert(new(psyssym,init('ADDR',in_addr_x)));
end;
procedure insert_intern_types(p : psymtable);
{
all the types inserted into the system unit
}
var
{ several defs to simulate more or less C++ objects for GDB }
vmtdef : precorddef;
vmtarraydef : parraydef;
vmtsymtable : psymtable;
begin
{ Internal types }
p^.insert(new(ptypesym,init('formal',cformaldef)));
p^.insert(new(ptypesym,init('void',voiddef)));
p^.insert(new(ptypesym,init('byte',u8bitdef)));
p^.insert(new(ptypesym,init('word',u16bitdef)));
p^.insert(new(ptypesym,init('ulong',u32bitdef)));
p^.insert(new(ptypesym,init('longint',s32bitdef)));
p^.insert(new(ptypesym,init('qword',cu64bitdef)));
p^.insert(new(ptypesym,init('int64',cs64bitdef)));
p^.insert(new(ptypesym,init('char',cchardef)));
p^.insert(new(ptypesym,init('shortstring',cshortstringdef)));
p^.insert(new(ptypesym,init('longstring',clongstringdef)));
p^.insert(new(ptypesym,init('ansistring',cansistringdef)));
p^.insert(new(ptypesym,init('widestring',cwidestringdef)));
p^.insert(new(ptypesym,init('openshortstring',openshortstringdef)));
p^.insert(new(ptypesym,init('boolean',booldef)));
p^.insert(new(ptypesym,init('void_pointer',voidpointerdef)));
p^.insert(new(ptypesym,init('char_pointer',charpointerdef)));
p^.insert(new(ptypesym,init('void_farpointer',voidfarpointerdef)));
p^.insert(new(ptypesym,init('openchararray',openchararraydef)));
p^.insert(new(ptypesym,init('file',cfiledef)));
p^.insert(new(ptypesym,init('s32real',s32floatdef)));
p^.insert(new(ptypesym,init('s64real',s64floatdef)));
p^.insert(new(ptypesym,init('s80real',s80floatdef)));
p^.insert(new(ptypesym,init('s32fixed',s32fixeddef)));
{ Add a type for virtual method tables in lowercase }
{ so it isn't reachable! }
vmtsymtable:=new(psymtable,init(recordsymtable));
vmtdef:=new(precorddef,init(vmtsymtable));
pvmtdef:=new(ppointerdef,init(vmtdef));
vmtsymtable^.insert(new(pvarsym,init('parent',pvmtdef)));
vmtsymtable^.insert(new(pvarsym,init('length',globaldef('longint'))));
vmtsymtable^.insert(new(pvarsym,init('mlength',globaldef('longint'))));
vmtarraydef:=new(parraydef,init(0,1,s32bitdef));
vmtarraydef^.definition := voidpointerdef;
vmtsymtable^.insert(new(pvarsym,init('__pfn',vmtarraydef)));
p^.insert(new(ptypesym,init('__vtbl_ptr_type',vmtdef)));
p^.insert(new(ptypesym,init('pvmt',pvmtdef)));
vmtarraydef:=new(parraydef,init(0,1,s32bitdef));
vmtarraydef^.definition := pvmtdef;
p^.insert(new(ptypesym,init('vtblarray',vmtarraydef)));
insertinternsyms(p);
{ Normal types }
p^.insert(new(ptypesym,init('SINGLE',s32floatdef)));
p^.insert(new(ptypesym,init('DOUBLE',s64floatdef)));
p^.insert(new(ptypesym,init('EXTENDED',s80floatdef)));
p^.insert(new(ptypesym,init('REAL',s64floatdef)));
{$ifdef i386}
p^.insert(new(ptypesym,init('COMP',new(pfloatdef,init(s64comp)))));
{$endif}
p^.insert(new(ptypesym,init('POINTER',voidpointerdef)));
p^.insert(new(ptypesym,init('FARPOINTER',voidfarpointerdef)));
{ p^.insert(new(ptypesym,init('STRING',cshortstringdef))); }
p^.insert(new(ptypesym,init('SHORTSTRING',cshortstringdef)));
p^.insert(new(ptypesym,init('LONGSTRING',clongstringdef)));
p^.insert(new(ptypesym,init('ANSISTRING',cansistringdef)));
p^.insert(new(ptypesym,init('WIDESTRING',cwidestringdef)));
p^.insert(new(ptypesym,init('BOOLEAN',booldef)));
p^.insert(new(ptypesym,init('BYTEBOOL',booldef)));
p^.insert(new(ptypesym,init('WORDBOOL',new(porddef,init(bool16bit,0,1)))));
p^.insert(new(ptypesym,init('LONGBOOL',new(porddef,init(bool32bit,0,1)))));
p^.insert(new(ptypesym,init('CHAR',cchardef)));
p^.insert(new(ptypesym,init('TEXT',new(pfiledef,init(ft_text,nil)))));
p^.insert(new(ptypesym,init('CARDINAL',u32bitdef)));
p^.insert(new(ptypesym,init('FIXED',new(pfloatdef,init(f32bit)))));
p^.insert(new(ptypesym,init('FIXED16',new(pfloatdef,init(f16bit)))));
p^.insert(new(ptypesym,init('QWORD',cu64bitdef)));
p^.insert(new(ptypesym,init('INT64',cs64bitdef)));
p^.insert(new(ptypesym,init('TYPEDFILE',new(pfiledef,init(ft_typed,voiddef)))));
end;
procedure readconstdefs;
{
Load all default definitions for consts from the system unit
}
begin
u8bitdef:=porddef(globaldef('byte'));
u16bitdef:=porddef(globaldef('word'));
u32bitdef:=porddef(globaldef('ulong'));
s32bitdef:=porddef(globaldef('longint'));
cu64bitdef:=porddef(globaldef('qword'));
cs64bitdef:=porddef(globaldef('int64'));
cformaldef:=pformaldef(globaldef('formal'));
voiddef:=porddef(globaldef('void'));
cchardef:=porddef(globaldef('char'));
cshortstringdef:=pstringdef(globaldef('shortstring'));
clongstringdef:=pstringdef(globaldef('longstring'));
cansistringdef:=pstringdef(globaldef('ansistring'));
cwidestringdef:=pstringdef(globaldef('widestring'));
openshortstringdef:=pstringdef(globaldef('openshortstring'));
openchararraydef:=parraydef(globaldef('openchararray'));
s32floatdef:=pfloatdef(globaldef('s32real'));
s64floatdef:=pfloatdef(globaldef('s64real'));
s80floatdef:=pfloatdef(globaldef('s80real'));
s32fixeddef:=pfloatdef(globaldef('s32fixed'));
booldef:=porddef(globaldef('boolean'));
voidpointerdef:=ppointerdef(globaldef('void_pointer'));
charpointerdef:=ppointerdef(globaldef('char_pointer'));
voidfarpointerdef:=ppointerdef(globaldef('void_farpointer'));
cfiledef:=pfiledef(globaldef('file'));
pvmtdef:=ppointerdef(globaldef('pvmt'));
end;
procedure createconstdefs;
{
Create all default definitions for consts for the system unit
}
var
oldregisterdef : boolean;
begin
{ create definitions for constants }
oldregisterdef:=registerdef;
registerdef:=false;
cformaldef:=new(pformaldef,init);
voiddef:=new(porddef,init(uvoid,0,0));
u8bitdef:=new(porddef,init(u8bit,0,255));
u16bitdef:=new(porddef,init(u16bit,0,65535));
u32bitdef:=new(porddef,init(u32bit,0,$ffffffff));
s32bitdef:=new(porddef,init(s32bit,$80000000,$7fffffff));
cu64bitdef:=new(porddef,init(u64bit,0,0));
cs64bitdef:=new(porddef,init(s64bit,0,0));
booldef:=new(porddef,init(bool8bit,0,1));
cchardef:=new(porddef,init(uchar,0,255));
cshortstringdef:=new(pstringdef,shortinit(255));
{ should we give a length to the default long and ansi string definition ?? }
clongstringdef:=new(pstringdef,longinit(-1));
cansistringdef:=new(pstringdef,ansiinit(-1));
cwidestringdef:=new(pstringdef,wideinit(-1));
{ length=0 for shortstring is open string (needed for readln(string) }
openshortstringdef:=new(pstringdef,shortinit(0));
openchararraydef:=new(parraydef,init(0,-1,s32bitdef));
parraydef(openchararraydef)^.definition:=cchardef;
{$ifdef i386}
s32floatdef:=new(pfloatdef,init(s32real));
s64floatdef:=new(pfloatdef,init(s64real));
s80floatdef:=new(pfloatdef,init(s80real));
{$endif}
{$ifdef m68k}
s32floatdef:=new(pfloatdef,init(s32real));
s64floatdef:=new(pfloatdef,init(s64real));
if (cs_fp_emulation in aktmoduleswitches) then
s80floatdef:=new(pfloatdef,init(s32real))
else
s80floatdef:=new(pfloatdef,init(s80real));
{$endif}
s32fixeddef:=new(pfloatdef,init(f32bit));
{ some other definitions }
voidpointerdef:=new(ppointerdef,init(voiddef));
charpointerdef:=new(ppointerdef,init(cchardef));
voidfarpointerdef:=new(ppointerdef,initfar(voiddef));
cfiledef:=new(pfiledef,init(ft_untyped,nil));
registerdef:=oldregisterdef;
end;
end.
{
$Log$
Revision 1.29 1999-11-06 14:34:23 peter
* truncated log to 20 revs
Revision 1.28 1999/09/16 23:05:55 florian
* m68k compiler is again compilable (only gas writer, no assembler reader)
Revision 1.27 1999/08/13 14:24:17 pierre
+ stabs for classes and classref working,
a class still needs an ^ to get that content of it,
but the class fields inside a class don't result into an
infinite loop anymore!
Revision 1.26 1999/08/03 22:03:07 peter
* moved bitmask constants to sets
* some other type/const renamings
Revision 1.25 1999/07/05 20:13:17 peter
* removed temp defines
Revision 1.24 1999/07/01 15:49:20 florian
* int64/qword type release
+ lo/hi for int64/qword
Revision 1.23 1999/05/12 00:19:53 peter
* removed R_DEFAULT_SEG
* uniform float names
Revision 1.22 1999/05/06 09:05:23 peter
* generic write_float and str_float
* fixed constant float conversions
Revision 1.21 1999/04/26 18:28:15 peter
* better read/write array
Revision 1.20 1999/04/17 13:12:20 peter
* addr() internal
Revision 1.19 1999/04/07 15:31:12 pierre
* all formaldefs are now a sinlge definition
cformaldef (this was necessary for double_checksum)
+ small part of double_checksum code
Revision 1.18 1999/03/26 00:05:40 peter
* released valintern
+ deffile is now removed when compiling is finished
* ^( compiles now correct
+ static directive
* shrd fixed
Revision 1.17 1999/03/16 17:52:54 jonas
* changes for internal Val code (do a "make cycle OPT=-dvalintern" to test)
* in cgi386inl: also range checking for subrange types (compile with "-dreadrangecheck")
* in cgai386: also small fixes to emitrangecheck
Revision 1.16 1999/03/02 02:56:17 peter
+ stabs support for binary writers
* more fixes and missing updates from the previous commit :(
Revision 1.15 1998/12/30 22:15:51 peter
+ farpointer type
* absolutesym now also stores if its far
Revision 1.14 1998/12/11 00:03:40 peter
+ globtype,tokens,version unit splitted from globals
Revision 1.13 1998/12/10 09:47:25 florian
+ basic operations with int64/qord (compiler with -dint64)
+ rtti of enumerations extended: names are now written
Revision 1.12 1998/11/27 14:50:45 peter
+ open strings, $P switch support
Revision 1.11 1998/11/16 10:18:09 peter
* fixes for ansistrings
Revision 1.10 1998/11/09 11:44:36 peter
+ va_list for printf support
Revision 1.9 1998/11/05 12:02:54 peter
* released useansistring
* removed -Sv, its now available in fpc modes
}
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