mirror of
https://gitlab.com/freepascal.org/fpc/source.git
synced 2025-04-11 04:58:06 +02:00
868 lines
21 KiB
ObjectPascal
868 lines
21 KiB
ObjectPascal
{****************************************************************************
|
|
|
|
Free Pascal -- OS/2 runtime library
|
|
|
|
Copyright (c) 1999-2000 by Florian Klaempfl
|
|
Copyright (c) 1999-2000 by Daniel Mantione
|
|
|
|
Free Pascal is distributed under the GNU Public License v2. So is this unit.
|
|
The GNU Public License requires you to distribute the source code of this
|
|
unit with any product that uses it. We grant you an exception to this, and
|
|
that is, when you compile a program with the Free Pascal Compiler, you do not
|
|
need to ship source code with that program, AS LONG AS YOU ARE USING
|
|
UNMODIFIED CODE! If you modify this code, you MUST change the next line:
|
|
|
|
<This an official, unmodified Free Pascal source code file.>
|
|
|
|
Send us your modified files, we can work together if you want!
|
|
|
|
Free Pascal 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
|
|
Library GNU General Public License for more details.
|
|
|
|
You should have received a copy of the Library GNU General Public License
|
|
along with Free Pascal; see the file COPYING.LIB. If not, write to
|
|
the Free Software Foundation, 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA.
|
|
|
|
****************************************************************************}
|
|
|
|
unit sysos2;
|
|
|
|
{Changelog:
|
|
|
|
People:
|
|
|
|
DM - Daniel Mantione
|
|
|
|
Date: Description of change: Changed by:
|
|
|
|
- First released version 0.1. DM
|
|
|
|
Coding style:
|
|
|
|
My coding style is a bit unusual for Pascal. Nevertheless I friendly ask
|
|
you to try to make your changes not look all to different. In general,
|
|
set your IDE to use tab characters, optimal fill on and a tabsize of 4.}
|
|
|
|
interface
|
|
|
|
{Link the startup code.}
|
|
{$l prt1.oo2}
|
|
|
|
{$I SYSTEMH.INC}
|
|
{$I heaph.inc}
|
|
|
|
type Tos=(osDOS,osOS2,osDPMI);
|
|
|
|
var os_mode:Tos;
|
|
first_meg:pointer;
|
|
|
|
type Psysthreadib=^Tsysthreadib;
|
|
Pthreadinfoblock=^Tthreadinfoblock;
|
|
Pprocessinfoblock=^Tprocessinfoblock;
|
|
|
|
Tbytearray=array[0..$ffff] of byte;
|
|
Pbytearray=^Tbytearray;
|
|
|
|
Tsysthreadib=record
|
|
tid,
|
|
priority,
|
|
version:longint;
|
|
MCcount,
|
|
MCforceflag:word;
|
|
end;
|
|
|
|
Tthreadinfoblock=record
|
|
pexchain,
|
|
stack,
|
|
stacklimit:pointer;
|
|
tib2:Psysthreadib;
|
|
version,
|
|
ordinal:longint;
|
|
end;
|
|
|
|
Tprocessinfoblock=record
|
|
pid,
|
|
parentpid,
|
|
hmte:longint;
|
|
cmd,
|
|
env:Pbytearray;
|
|
flstatus,
|
|
ttype:longint;
|
|
end;
|
|
|
|
const UnusedHandle=$ffff;
|
|
StdInputHandle=0;
|
|
StdOutputHandle=1;
|
|
StdErrorHandle=2;
|
|
|
|
FileNameCaseSensitive : boolean = false;
|
|
|
|
var
|
|
{ C-compatible arguments and environment }
|
|
argc : longint;external name '_argc';
|
|
argv : ppchar;external name '_argv';
|
|
envp : ppchar;external name '_environ';
|
|
|
|
|
|
implementation
|
|
|
|
{$I SYSTEM.INC}
|
|
|
|
procedure DosGetInfoBlocks (var Atib: PThreadInfoBlock;
|
|
var Apib: PProcessInfoBlock); cdecl;
|
|
external 'DOSCALLS' index 312;
|
|
|
|
function DosSetRelMaxFH (var ReqCount, CurMaxFH: longint): longint; cdecl;
|
|
external 'DOSCALLS' index 382;
|
|
|
|
{This is the correct way to call external assembler procedures.}
|
|
procedure syscall; external name '___SYSCALL';
|
|
|
|
{***************************************************************************
|
|
|
|
Runtime error checking related routines.
|
|
|
|
***************************************************************************}
|
|
|
|
{$S-}
|
|
procedure st1(stack_size:longint);[public,alias: 'STACKCHECK'];
|
|
|
|
begin
|
|
{ called when trying to get local stack }
|
|
{ if the compiler directive $S is set }
|
|
{$ASMMODE DIRECT}
|
|
asm
|
|
movl stack_size,%ebx
|
|
movl %esp,%eax
|
|
subl %ebx,%eax
|
|
{$ifdef SYSTEMDEBUG}
|
|
movl U_SYSOS2_LOWESTSTACK,%ebx
|
|
cmpl %eax,%ebx
|
|
jb Lis_not_lowest
|
|
movl %eax,U_SYSOS2_LOWESTSTACK
|
|
Lis_not_lowest:
|
|
{$endif SYSTEMDEBUG}
|
|
cmpb $2,U_SYSOS2_OS_MODE
|
|
jne Lrunning_in_dos
|
|
movl U_SYSOS2_STACKBOTTOM,%ebx
|
|
jmp Lrunning_in_os2
|
|
Lrunning_in_dos:
|
|
movl __heap_brk,%ebx
|
|
Lrunning_in_os2:
|
|
cmpl %eax,%ebx
|
|
jae Lshort_on_stack
|
|
leave
|
|
ret $4
|
|
Lshort_on_stack:
|
|
end ['EAX','EBX'];
|
|
{$ASMMODE ATT}
|
|
{ this needs a local variable }
|
|
{ so the function called itself !! }
|
|
{ Writeln('low in stack ');}
|
|
HandleError(202);
|
|
end;
|
|
{no stack check in system }
|
|
|
|
{****************************************************************************
|
|
|
|
Miscellaneous related routines.
|
|
|
|
****************************************************************************}
|
|
|
|
procedure system_exit; assembler;
|
|
asm
|
|
movb $0x4c,%ah
|
|
movb exitcode,%al
|
|
call syscall
|
|
end;
|
|
|
|
|
|
{$asmmode direct}
|
|
function paramcount:longint;assembler;
|
|
|
|
asm
|
|
movl _argc,%eax
|
|
decl %eax
|
|
end ['EAX'];
|
|
|
|
function paramstr(l:longint):string;
|
|
|
|
function args:pointer;assembler;
|
|
|
|
asm
|
|
movl _argv,%eax
|
|
end ['EAX'];
|
|
|
|
var p:^Pchar;
|
|
|
|
begin
|
|
if (l>=0) and (l<=paramcount) then
|
|
begin
|
|
p:=args;
|
|
paramstr:=strpas(p[l]);
|
|
end
|
|
else paramstr:='';
|
|
end;
|
|
|
|
{$asmmode att}
|
|
|
|
procedure randomize;
|
|
|
|
var hl:longint;
|
|
|
|
begin
|
|
asm
|
|
movb $0x2c,%ah
|
|
call syscall
|
|
movw %cx,-4(%ebp)
|
|
movw %dx,-2(%ebp)
|
|
end;
|
|
randseed:=hl;
|
|
end;
|
|
|
|
{****************************************************************************
|
|
|
|
Heap management releated routines.
|
|
|
|
****************************************************************************}
|
|
|
|
|
|
{ this function allows to extend the heap by calling
|
|
syscall $7f00 resizes the brk area}
|
|
|
|
function sbrk(size:longint):longint; assembler;
|
|
asm
|
|
movl size,%edx
|
|
movw $0x7f00,%ax
|
|
call syscall
|
|
end;
|
|
|
|
{$ASMMODE direct}
|
|
function getheapstart:pointer;assembler;
|
|
|
|
asm
|
|
movl __heap_base,%eax
|
|
end ['EAX'];
|
|
|
|
function getheapsize:longint;assembler;
|
|
asm
|
|
movl HEAPSIZE,%eax
|
|
end ['EAX'];
|
|
{$ASMMODE ATT}
|
|
|
|
{$i heap.inc}
|
|
|
|
{****************************************************************************
|
|
|
|
Low Level File Routines
|
|
|
|
****************************************************************************}
|
|
|
|
procedure allowslash(p:Pchar);
|
|
|
|
{Allow slash as backslash.}
|
|
|
|
var i:longint;
|
|
|
|
begin
|
|
for i:=0 to strlen(p) do
|
|
if p[i]='/' then p[i]:='\';
|
|
end;
|
|
|
|
procedure do_close(h:longint);
|
|
|
|
begin
|
|
{ Only three standard handles under real OS/2 }
|
|
if (h > 4) or
|
|
(os_MODE = osOS2) and (h > 2) then
|
|
begin
|
|
asm
|
|
movb $0x3e,%ah
|
|
mov h,%ebx
|
|
call syscall
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
procedure do_erase(p:Pchar);
|
|
|
|
begin
|
|
allowslash(p);
|
|
asm
|
|
movl P,%edx
|
|
movb $0x41,%ah
|
|
call syscall
|
|
jnc .LERASE1
|
|
movw %ax,inoutres;
|
|
.LERASE1:
|
|
end;
|
|
end;
|
|
|
|
procedure do_rename(p1,p2:Pchar);
|
|
|
|
begin
|
|
allowslash(p1);
|
|
allowslash(p2);
|
|
asm
|
|
movl P1, %edx
|
|
movl P2, %edi
|
|
movb $0x56,%ah
|
|
call syscall
|
|
jnc .LRENAME1
|
|
movw %ax,inoutres;
|
|
.LRENAME1:
|
|
end;
|
|
end;
|
|
|
|
function do_read(h,addr,len:longint):longint; assembler;
|
|
asm
|
|
movl len,%ecx
|
|
movl addr,%edx
|
|
movl h,%ebx
|
|
movb $0x3f,%ah
|
|
call syscall
|
|
jnc .LDOSREAD1
|
|
movw %ax,inoutres;
|
|
xorl %eax,%eax
|
|
.LDOSREAD1:
|
|
end;
|
|
|
|
function do_write(h,addr,len:longint) : longint; assembler;
|
|
asm
|
|
movl len,%ecx
|
|
movl addr,%edx
|
|
movl h,%ebx
|
|
movb $0x40,%ah
|
|
call syscall
|
|
jnc .LDOSWRITE1
|
|
movw %ax,inoutres;
|
|
.LDOSWRITE1:
|
|
end;
|
|
|
|
function do_filepos(handle:longint): longint; assembler;
|
|
asm
|
|
movw $0x4201,%ax
|
|
movl handle,%ebx
|
|
xorl %edx,%edx
|
|
call syscall
|
|
jnc .LDOSFILEPOS
|
|
movw %ax,inoutres;
|
|
xorl %eax,%eax
|
|
.LDOSFILEPOS:
|
|
end;
|
|
|
|
procedure do_seek(handle,pos:longint); assembler;
|
|
asm
|
|
movw $0x4200,%ax
|
|
movl handle,%ebx
|
|
movl pos,%edx
|
|
call syscall
|
|
jnc .LDOSSEEK1
|
|
movw %ax,inoutres;
|
|
.LDOSSEEK1:
|
|
end;
|
|
|
|
function do_seekend(handle:longint):longint; assembler;
|
|
asm
|
|
movw $0x4202,%ax
|
|
movl handle,%ebx
|
|
xorl %edx,%edx
|
|
call syscall
|
|
jnc .Lset_at_end1
|
|
movw %ax,inoutres;
|
|
xorl %eax,%eax
|
|
.Lset_at_end1:
|
|
end;
|
|
|
|
function do_filesize(handle:longint):longint;
|
|
|
|
var aktfilepos:longint;
|
|
|
|
begin
|
|
aktfilepos:=do_filepos(handle);
|
|
do_filesize:=do_seekend(handle);
|
|
do_seek(handle,aktfilepos);
|
|
end;
|
|
|
|
procedure do_truncate(handle,pos:longint); assembler;
|
|
asm
|
|
(* DOS function 40h isn't safe for this according to EMX documentation
|
|
movl $0x4200,%eax
|
|
movl 8(%ebp),%ebx
|
|
movl 12(%ebp),%edx
|
|
call syscall
|
|
jc .LTruncate1
|
|
movl 8(%ebp),%ebx
|
|
movl 12(%ebp),%edx
|
|
movl %ebp,%edx
|
|
xorl %ecx,%ecx
|
|
movb $0x40,%ah
|
|
call syscall
|
|
*)
|
|
movl $0x7F25,%eax
|
|
movl Handle,%ebx
|
|
movl Pos,%edx
|
|
call syscall
|
|
inc %eax
|
|
movl %ecx, %eax
|
|
jnz .LTruncate1
|
|
(* File position is undefined after truncation, move to the end. *)
|
|
movl $0x4202,%eax
|
|
movl Handle,%ebx
|
|
movl $0,%edx
|
|
call syscall
|
|
jnc .LTruncate2
|
|
.LTruncate1:
|
|
movw %ax,inoutres;
|
|
.LTruncate2:
|
|
end;
|
|
|
|
const
|
|
FileHandleCount: longint = 20;
|
|
|
|
function Increase_File_Handle_Count: boolean;
|
|
var Err: word;
|
|
L1, L2: longint;
|
|
begin
|
|
if os_mode = osOS2 then
|
|
begin
|
|
L1 := 10;
|
|
if DosSetRelMaxFH (L1, L2) <> 0 then
|
|
Increase_File_Handle_Count := false
|
|
else
|
|
if L2 > FileHandleCount then
|
|
begin
|
|
FileHandleCount := L2;
|
|
Increase_File_Handle_Count := true;
|
|
end
|
|
else
|
|
Increase_File_Handle_Count := false;
|
|
end
|
|
else
|
|
begin
|
|
Inc (FileHandleCount, 10);
|
|
Err := 0;
|
|
asm
|
|
movl $0x6700, %eax
|
|
movl FileHandleCount, %ebx
|
|
call syscall
|
|
jnc .LIncFHandles
|
|
movw %ax, Err
|
|
.LIncFHandles:
|
|
end;
|
|
if Err <> 0 then
|
|
begin
|
|
Increase_File_Handle_Count := false;
|
|
Dec (FileHandleCount, 10);
|
|
end
|
|
else
|
|
Increase_File_Handle_Count := true;
|
|
end;
|
|
end;
|
|
|
|
procedure do_open(var f;p:pchar;flags:longint);
|
|
|
|
{
|
|
filerec and textrec have both handle and mode as the first items so
|
|
they could use the same routine for opening/creating.
|
|
when (flags and $100) the file will be append
|
|
when (flags and $1000) the file will be truncate/rewritten
|
|
when (flags and $10000) there is no check for close (needed for textfiles)
|
|
}
|
|
|
|
var Action: longint;
|
|
|
|
begin
|
|
allowslash(p);
|
|
{ close first if opened }
|
|
if ((flags and $10000)=0) then
|
|
begin
|
|
case filerec(f).mode of
|
|
fminput,fmoutput,fminout : Do_Close(filerec(f).handle);
|
|
fmclosed:;
|
|
else
|
|
begin
|
|
inoutres:=102; {not assigned}
|
|
exit;
|
|
end;
|
|
end;
|
|
end;
|
|
{ reset file handle }
|
|
filerec(f).handle := UnusedHandle;
|
|
Action := 0;
|
|
{ convert filemode to filerec modes }
|
|
case (flags and 3) of
|
|
0 : filerec(f).mode:=fminput;
|
|
1 : filerec(f).mode:=fmoutput;
|
|
2 : filerec(f).mode:=fminout;
|
|
end;
|
|
if (flags and $1000)<>0 then
|
|
Action := $50000; (* Create / replace *)
|
|
{ empty name is special }
|
|
if p[0]=#0 then
|
|
begin
|
|
case FileRec(f).mode of
|
|
fminput :
|
|
FileRec(f).Handle:=StdInputHandle;
|
|
fminout, { this is set by rewrite }
|
|
fmoutput :
|
|
FileRec(f).Handle:=StdOutputHandle;
|
|
fmappend :
|
|
begin
|
|
FileRec(f).Handle:=StdOutputHandle;
|
|
FileRec(f).mode:=fmoutput; {fool fmappend}
|
|
end;
|
|
end;
|
|
exit;
|
|
end;
|
|
Action := Action or (Flags and $FF);
|
|
(* DenyAll if sharing not specified. *)
|
|
if Flags and 112 = 0 then
|
|
Action := Action or 16;
|
|
asm
|
|
movl $0x7f2b, %eax
|
|
movl Action, %ecx
|
|
movl p, %edx
|
|
call syscall
|
|
cmpl $0xffffffff, %eax
|
|
jnz .LOPEN1
|
|
movw %cx, InOutRes
|
|
movw UnusedHandle, %ax
|
|
.LOPEN1:
|
|
movl f,%edx
|
|
movw %ax,(%edx)
|
|
end;
|
|
if (InOutRes = 4) and Increase_File_Handle_Count then
|
|
(* Trying again after increasing amount of file handles *)
|
|
asm
|
|
movl $0x7f2b, %eax
|
|
movl Action, %ecx
|
|
movl p, %edx
|
|
call syscall
|
|
cmpl $0xffffffff, %eax
|
|
jnz .LOPEN2
|
|
movw %cx, InOutRes
|
|
movw UnusedHandle, %ax
|
|
.LOPEN2:
|
|
movl f,%edx
|
|
movw %ax,(%edx)
|
|
end;
|
|
{ for systems that have more handles }
|
|
if FileRec (F).Handle > FileHandleCount then
|
|
FileHandleCount := FileRec (F).Handle;
|
|
if (flags and $100)<>0 then
|
|
begin
|
|
do_seekend(filerec(f).handle);
|
|
FileRec (F).Mode := fmOutput; {fool fmappend}
|
|
end;
|
|
end;
|
|
|
|
{$ASMMODE INTEL}
|
|
function do_isdevice (Handle: longint): boolean; assembler;
|
|
(*
|
|
var HT, Attr: longint;
|
|
begin
|
|
if os_mode = osOS2 then
|
|
begin
|
|
if DosQueryHType (Handle, HT, Attr) <> 0 then HT := 1;
|
|
end
|
|
else
|
|
*)
|
|
asm
|
|
mov ebx, Handle
|
|
mov eax, 4400h
|
|
call syscall
|
|
mov eax, 1
|
|
jc @IsDevEnd
|
|
test edx, 80h
|
|
jnz @IsDevEnd
|
|
dec eax
|
|
@IsDevEnd:
|
|
end;
|
|
{$ASMMODE ATT}
|
|
|
|
|
|
{*****************************************************************************
|
|
UnTyped File Handling
|
|
*****************************************************************************}
|
|
|
|
{$i file.inc}
|
|
|
|
{*****************************************************************************
|
|
Typed File Handling
|
|
*****************************************************************************}
|
|
|
|
{$i typefile.inc}
|
|
|
|
{*****************************************************************************
|
|
Text File Handling
|
|
*****************************************************************************}
|
|
|
|
{$DEFINE EOF_CTRLZ}
|
|
|
|
{$i text.inc}
|
|
|
|
{****************************************************************************
|
|
|
|
Directory related routines.
|
|
|
|
****************************************************************************}
|
|
|
|
{*****************************************************************************
|
|
Directory Handling
|
|
*****************************************************************************}
|
|
|
|
procedure dosdir(func:byte;const s:string);
|
|
|
|
var buffer:array[0..255] of char;
|
|
|
|
begin
|
|
move(s[1],buffer,length(s));
|
|
buffer[length(s)]:=#0;
|
|
allowslash(Pchar(@buffer));
|
|
asm
|
|
leal buffer,%edx
|
|
movb func,%ah
|
|
call syscall
|
|
jnc .LDOS_DIRS1
|
|
movw %ax,inoutres;
|
|
.LDOS_DIRS1:
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure mkdir(const s : string);
|
|
|
|
begin
|
|
DosDir($39,s);
|
|
end;
|
|
|
|
|
|
procedure rmdir(const s : string);
|
|
|
|
begin
|
|
DosDir($3a,s);
|
|
end;
|
|
|
|
procedure chdir(const s : string);
|
|
|
|
begin
|
|
DosDir($3b,s);
|
|
end;
|
|
|
|
procedure getdir(drivenr : byte;var dir : shortstring);
|
|
|
|
{Written by Michael Van Canneyt.}
|
|
|
|
var temp:array[0..255] of char;
|
|
sof:Pchar;
|
|
i:byte;
|
|
|
|
begin
|
|
sof:=pchar(@dir[4]);
|
|
{ dir[1..3] will contain '[drivenr]:\', but is not }
|
|
{ supplied by DOS, so we let dos string start at }
|
|
{ dir[4] }
|
|
{ Get dir from drivenr : 0=default, 1=A etc... }
|
|
asm
|
|
movb drivenr,%dl
|
|
movl sof,%esi
|
|
mov $0x47,%ah
|
|
call syscall
|
|
end;
|
|
{ Now Dir should be filled with directory in ASCIIZ, }
|
|
{ starting from dir[4] }
|
|
dir[0]:=#3;
|
|
dir[2]:=':';
|
|
dir[3]:='\';
|
|
i:=4;
|
|
{Conversion to Pascal string }
|
|
while (dir[i]<>#0) do
|
|
begin
|
|
{ convert path name to DOS }
|
|
if dir[i]='/' then
|
|
dir[i]:='\';
|
|
dir[0]:=char(i);
|
|
inc(i);
|
|
end;
|
|
{ upcase the string (FPC function) }
|
|
if not (FileNameCaseSensitive) then dir:=upcase(dir);
|
|
if drivenr<>0 then { Drive was supplied. We know it }
|
|
dir[1]:=char(65+drivenr-1)
|
|
else
|
|
begin
|
|
{ We need to get the current drive from DOS function 19H }
|
|
{ because the drive was the default, which can be unknown }
|
|
asm
|
|
movb $0x19,%ah
|
|
call syscall
|
|
addb $65,%al
|
|
movb %al,i
|
|
end;
|
|
dir[1]:=char(i);
|
|
end;
|
|
end;
|
|
|
|
|
|
|
|
{****************************************************************************
|
|
|
|
System unit initialization.
|
|
|
|
****************************************************************************}
|
|
|
|
function GetFileHandleCount: longint;
|
|
var L1, L2: longint;
|
|
begin
|
|
L1 := 0; (* Don't change the amount, just check. *)
|
|
if DosSetRelMaxFH (L1, L2) <> 0 then GetFileHandleCount := 50
|
|
else GetFileHandleCount := L2;
|
|
end;
|
|
|
|
var pib:Pprocessinfoblock;
|
|
tib:Pthreadinfoblock;
|
|
|
|
begin
|
|
{Determine the operating system we are running on.}
|
|
asm
|
|
movl $0,os_mode
|
|
movw $0x7f0a,%ax
|
|
call syscall
|
|
testw $512,%bx {Bit 9 is OS/2 flag.}
|
|
setnzb os_mode
|
|
testw $4096,%bx
|
|
jz .LnoRSX
|
|
movl $2,os_mode
|
|
.LnoRSX:
|
|
end;
|
|
|
|
{$ASMMODE DIRECT}
|
|
{Enable the brk area by initializing it with the initial heap size.}
|
|
asm
|
|
movw $0x7f01,%ax
|
|
movl HEAPSIZE,%edx
|
|
addl __heap_base,%edx
|
|
call ___SYSCALL
|
|
cmpl $-1,%eax
|
|
jnz Lheapok
|
|
pushl $204
|
|
{call RUNERROR$$WORD}
|
|
Lheapok:
|
|
end;
|
|
{$ASMMODE ATT}
|
|
|
|
{Now request, if we are running under DOS,
|
|
read-access to the first meg. of memory.}
|
|
if os_mode in [osDOS,osDPMI] then
|
|
asm
|
|
movw $0x7f13,%ax
|
|
xorl %ebx,%ebx
|
|
movl $0xfff,%ecx
|
|
xorl %edx,%edx
|
|
call syscall
|
|
movl %eax,first_meg
|
|
end
|
|
else
|
|
begin
|
|
first_meg := nil;
|
|
(* Initialize the amount of file handles *)
|
|
FileHandleCount := GetFileHandleCount;
|
|
end;
|
|
{At 0.9.2, case for enumeration does not work.}
|
|
case os_mode of
|
|
osDOS:
|
|
stackbottom:=0; {In DOS mode, heap_brk is also the
|
|
stack bottom.}
|
|
osOS2:
|
|
begin
|
|
dosgetinfoblocks(tib,pib);
|
|
stackbottom:=longint(tib^.stack);
|
|
end;
|
|
osDPMI:
|
|
stackbottom:=0; {Not sure how to get it, but seems to be
|
|
always zero.}
|
|
end;
|
|
exitproc:=nil;
|
|
|
|
{Initialize the heap.}
|
|
initheap;
|
|
|
|
{ ... and exceptions }
|
|
InitExceptions;
|
|
|
|
{ to test stack depth }
|
|
loweststack:=maxlongint;
|
|
|
|
OpenStdIO(Input,fmInput,StdInputHandle);
|
|
OpenStdIO(Output,fmOutput,StdOutputHandle);
|
|
OpenStdIO(StdOut,fmOutput,StdOutputHandle);
|
|
OpenStdIO(StdErr,fmOutput,StdErrorHandle);
|
|
|
|
{ no I/O-Error }
|
|
inoutres:=0;
|
|
end.
|
|
{
|
|
$Log$
|
|
Revision 1.1 2000-07-13 06:31:07 michael
|
|
+ Initial import
|
|
|
|
Revision 1.34 2000/07/09 17:09:47 hajny
|
|
* little mistyping
|
|
|
|
Revision 1.33 2000/07/09 17:05:24 hajny
|
|
* default sharing mode changed to deny all (compatibility)
|
|
|
|
Revision 1.32 2000/06/11 09:47:57 hajny
|
|
* error handling and sharing corrected
|
|
|
|
Revision 1.31 2000/06/05 18:53:30 hajny
|
|
* FileHandleCount handling for OS/2 added
|
|
|
|
Revision 1.30 2000/06/04 14:14:01 hajny
|
|
* do_truncate corrected, do_open might work under W9x now
|
|
|
|
Revision 1.29 2000/05/28 18:17:39 hajny
|
|
do_isdevice corrected
|
|
|
|
Revision 1.28 2000/05/21 15:58:50 hajny
|
|
+ FileNameCaseSensitive added
|
|
|
|
Revision 1.27 2000/04/07 17:47:34 hajny
|
|
* got rid of os.inc
|
|
|
|
Revision 1.26 2000/02/09 16:59:34 peter
|
|
* truncated log
|
|
|
|
Revision 1.25 2000/02/09 12:39:11 peter
|
|
* halt moved to system.inc
|
|
|
|
Revision 1.24 2000/01/20 23:38:02 peter
|
|
* support fm_inout as stdoutput for assign(f,'');rewrite(f,1); becuase
|
|
rewrite opens always with filemode 2
|
|
|
|
Revision 1.23 2000/01/16 23:10:15 peter
|
|
* handle check fixed
|
|
|
|
Revision 1.22 2000/01/16 22:25:38 peter
|
|
* check handle for file closing
|
|
|
|
Revision 1.21 2000/01/09 20:45:58 hajny
|
|
* FPK changed to FPC
|
|
|
|
Revision 1.20 2000/01/07 16:41:50 daniel
|
|
* copyright 2000
|
|
|
|
Revision 1.19 2000/01/07 16:32:33 daniel
|
|
* copyright 2000 added
|
|
|
|
Revision 1.18 2000/01/02 17:45:25 hajny
|
|
* cdecl added for doscalls routines
|
|
|
|
Revision 1.17 1999/09/10 15:40:35 peter
|
|
* fixed do_open flags to be > $100, becuase filemode can be upto 255
|
|
|
|
}
|