{
$Id: system.pas,v 1.9 2003/10/25 23:42:35 hajny Exp $
This file is part of the Free Pascal run time library.
Copyright (c) 1999-2000 by Carl Eric Codere
Some parts taken from
Marcel Timmermans - Modula 2 Compiler
Nils Sjoholm - Amiga porter
Matthew Dillon - Dice C (with his kind permission)
dillon@backplane.com
See the file COPYING.FPC, included in this distribution,
for details about the copyright.
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.
**********************************************************************}
unit {$ifdef VER1_0}sysamiga{$else}{$ifdef VER0_99}sysamiga{$ELSE}system{$endif}{$ENDIF};
{--------------------------------------------------------------------}
{ LEFT TO DO: }
{--------------------------------------------------------------------}
{ o GetDir with different drive numbers }
{--------------------------------------------------------------------}
{$I os.inc}
{ AmigaOS uses character #10 as eoln only }
{$DEFINE SHORT_LINEBREAK}
interface
{$I systemh.inc}
type
THandle = longint;
{$I heaph.inc}
{Platform specific information}
const
LineEnding = #10;
LFNSupport = true;
DirectorySeparator = '/';
DriveSeparator = ':';
PathSeparator = ';';
FileNameCaseSensitive = false;
sLineBreak: string [1] = LineEnding;
{ used for single computations }
const BIAS4 = $7f-1;
const
UnusedHandle : longint = -1;
StdInputHandle : longint = 0;
StdOutputHandle : longint = 0;
StdErrorHandle : longint = 0;
_ExecBase:longint = $4;
_WorkbenchMsg : longint = 0;
_IntuitionBase : pointer = nil; { intuition library pointer }
_DosBase : pointer = nil; { DOS library pointer }
_UtilityBase : pointer = nil; { utiity library pointer }
{ Required for crt unit }
function do_read(h,addr,len : longint) : longint;
function do_write(h,addr,len : longint) : longint;
implementation
const
intuitionname : pchar = 'intuition.library';
dosname : pchar = 'dos.library';
utilityname : pchar = 'utility.library';
argc : longint = 0;
{ AmigaOS does not autoamtically deallocate memory on program termination }
{ therefore we have to handle this manually. This is a list of allocated }
{ pointers from the OS, we cannot use a linked list, because the linked }
{ list itself uses the HEAP! }
pointerlist : array[1..8] of longint =
(0,0,0,0,0,0,0,0);
{$I exec.inc}
TYPE
TDateStamp = packed record
ds_Days : Longint; { Number of days since Jan. 1, 1978 }
ds_Minute : Longint; { Number of minutes past midnight }
ds_Tick : Longint; { Number of ticks past minute }
end;
PDateStamp = ^TDateStamp;
PFileInfoBlock = ^TfileInfoBlock;
TFileInfoBlock = packed record
fib_DiskKey : Longint;
fib_DirEntryType : Longint;
{ Type of Directory. If < 0, then a plain file.
If > 0 a directory }
fib_FileName : Array [0..107] of Char;
{ Null terminated. Max 30 chars used for now }
fib_Protection : Longint;
{ bit mask of protection, rwxd are 3-0. }
fib_EntryType : Longint;
fib_Size : Longint; { Number of bytes in file }
fib_NumBlocks : Longint; { Number of blocks in file }
fib_Date : TDateStamp; { Date file last changed }
fib_Comment : Array [0..79] of Char;
{ Null terminated comment associated with file }
fib_Reserved : Array [0..35] of Char;
end;
TProcess = packed record
pr_Task : TTask;
pr_MsgPort : TMsgPort; { This is BPTR address from DOS functions }
{126} pr_Pad : Word; { Remaining variables on 4 byte boundaries }
{128} pr_SegList : Pointer; { Array of seg lists used by this process }
{132} pr_StackSize : Longint; { Size of process stack in bytes }
{136} pr_GlobVec : Pointer; { Global vector for this process (BCPL) }
{140} pr_TaskNum : Longint; { CLI task number of zero if not a CLI }
{144} pr_StackBase : BPTR; { Ptr to high memory end of process stack }
{148} pr_Result2 : Longint; { Value of secondary result from last call }
{152} pr_CurrentDir : BPTR; { Lock associated with current directory }
{156} pr_CIS : BPTR; { Current CLI Input Stream }
{160} pr_COS : BPTR; { Current CLI Output Stream }
{164} pr_ConsoleTask : Pointer; { Console handler process for current window}
{168} pr_FileSystemTask : Pointer; { File handler process for current drive }
{172} pr_CLI : BPTR; { pointer to ConsoleLineInterpreter }
pr_ReturnAddr : Pointer; { pointer to previous stack frame }
pr_PktWait : Pointer; { Function to be called when awaiting msg }
pr_WindowPtr : Pointer; { Window for error printing }
{ following definitions are new with 2.0 }
pr_HomeDir : BPTR; { Home directory of executing program }
pr_Flags : Longint; { flags telling dos about process }
pr_ExitCode : Pointer; { code to call on exit of program OR NULL }
pr_ExitData : Longint; { Passed as an argument to pr_ExitCode. }
pr_Arguments : PChar; { Arguments passed to the process at start }
pr_LocalVars : TMinList; { Local environment variables }
pr_ShellPrivate : Longint; { for the use of the current shell }
pr_CES : BPTR; { Error stream - IF NULL, use pr_COS }
end;
PProcess = ^TProcess;
{ AmigaOS does not automatically close opened files on exit back to }
{ the operating system, therefore as a precuation we close all files }
{ manually on exit. }
PFileList = ^TFileList;
TFileList = record { no packed, must be correctly aligned }
Handle: longint; { Handle to file }
next: pfilelist; { Next file in list }
closed: boolean; { TRUE=file already closed }
end;
Const
CTRL_C = 20; { Error code on CTRL-C press }
SIGBREAKF_CTRL_C = $1000; { CTRL-C signal flags }
_LVOFindTask = -294;
_LVOWaitPort = -384;
_LVOGetMsg = -372;
_LVOOpenLibrary = -552;
_LVOCloseLibrary = -414;
_LVOClose = -36;
_LVOOpen = -30;
_LVOIoErr = -132;
_LVOSeek = -66;
_LVODeleteFile = -72;
_LVORename = -78;
_LVOWrite = -48;
_LVORead = -42;
_LVOCreateDir = -120;
_LVOSetCurrentDirName = -558;
_LVOGetCurrentDirName = -564;
_LVOInput = -54;
_LVOOutput = -60;
_LVOUnLock = -90;
_LVOLock = -84;
_LVOCurrentDir = -126;
_LVONameFromLock = -402;
_LVONameFromFH = -408;
_LVOGetProgramName = -576;
_LVOGetProgramDir = -600;
_LVODupLock = -96;
_LVOExamine = -102;
_LVOParentDir = -210;
_LVOSetFileSize = -456;
_LVOSetSignal = -306;
_LVOAllocVec = -684;
_LVOFreeVec = -690;
{ Errors from IoErr(), etc. }
ERROR_NO_FREE_STORE = 103;
ERROR_TASK_TABLE_FULL = 105;
ERROR_BAD_TEMPLATE = 114;
ERROR_BAD_NUMBER = 115;
ERROR_REQUIRED_ARG_MISSING = 116;
ERROR_KEY_NEEDS_ARG = 117;
ERROR_TOO_MANY_ARGS = 118;
ERROR_UNMATCHED_QUOTES = 119;
ERROR_LINE_TOO_LONG = 120;
ERROR_FILE_NOT_OBJECT = 121;
ERROR_INVALID_RESIDENT_LIBRARY = 122;
ERROR_NO_DEFAULT_DIR = 201;
ERROR_OBJECT_IN_USE = 202;
ERROR_OBJECT_EXISTS = 203;
ERROR_DIR_NOT_FOUND = 204;
ERROR_OBJECT_NOT_FOUND = 205;
ERROR_BAD_STREAM_NAME = 206;
ERROR_OBJECT_TOO_LARGE = 207;
ERROR_ACTION_NOT_KNOWN = 209;
ERROR_INVALID_COMPONENT_NAME = 210;
ERROR_INVALID_LOCK = 211;
ERROR_OBJECT_WRONG_TYPE = 212;
ERROR_DISK_NOT_VALIDATED = 213;
ERROR_DISK_WRITE_PROTECTED = 214;
ERROR_RENAME_ACROSS_DEVICES = 215;
ERROR_DIRECTORY_NOT_EMPTY = 216;
ERROR_TOO_MANY_LEVELS = 217;
ERROR_DEVICE_NOT_MOUNTED = 218;
ERROR_SEEK_ERROR = 219;
ERROR_COMMENT_TOO_BIG = 220;
ERROR_DISK_FULL = 221;
ERROR_DELETE_PROTECTED = 222;
ERROR_WRITE_PROTECTED = 223;
ERROR_READ_PROTECTED = 224;
ERROR_NOT_A_DOS_DISK = 225;
ERROR_NO_DISK = 226;
ERROR_NO_MORE_ENTRIES = 232;
{ added for 1.4 }
ERROR_IS_SOFT_LINK = 233;
ERROR_OBJECT_LINKED = 234;
ERROR_BAD_HUNK = 235;
ERROR_NOT_IMPLEMENTED = 236;
ERROR_RECORD_NOT_LOCKED = 240;
ERROR_LOCK_COLLISION = 241;
ERROR_LOCK_TIMEOUT = 242;
ERROR_UNLOCK_ERROR = 243;
var
Initial: boolean; { Have successfully opened Std I/O }
errno : word; { AmigaOS IO Error number }
FileList : pFileList; { Linked list of opened files }
{old_exit: Pointer; not needed anymore }
FromHalt : boolean;
OrigDir : Longint; { Current lock on original startup directory }
{$I system.inc}
{$I lowmath.inc}
{ ************************ AMIGAOS STUB ROUTINES ************************* }
procedure DateStamp(var ds : tDateStamp);
begin
asm
MOVE.L A6,-(A7)
MOVE.L ds,d1
{ LAST THING TO SETUP SHOULD BE A6, otherwise you can }
{ not accept local variable, nor any parameters! :) }
MOVE.L _DOSBase,A6
JSR -192(A6)
MOVE.L (A7)+,A6
end;
end;
{ UNLOCK the BPTR pointed to in L }
Procedure Unlock(alock: longint);
Begin
asm
move.l alock,d1
move.l a6,d6 { save base pointer }
move.l _DosBase,a6
jsr _LVOUnlock(a6)
move.l d6,a6 { restore base pointer }
end;
end;
{ Change to the directory pointed to in the lock }
Function CurrentDir(alock : longint) : longint;
Begin
asm
move.l alock,d1
move.l a6,d6 { save base pointer }
move.l _DosBase,a6
jsr _LVOCurrentDir(a6)
move.l d6,a6 { restore base pointer }
move.l d0,@Result
end;
end;
{ Duplicate a lock }
Function DupLock(alock: longint): Longint;
Begin
asm
move.l alock,d1
move.l a6,d6 { save base pointer }
move.l _DosBase,a6
jsr _LVODupLock(a6)
move.l d6,a6 { restore base pointer }
move.l d0,@Result
end;
end;
{ Returns a lock on the directory was loaded from }
Function GetProgramLock: longint;
Begin
asm
move.l a6,d6 { save base pointer }
move.l _DosBase,a6
jsr _LVOGetProgramDir(a6)
move.l d6,a6 { restore base pointer }
move.l d0,@Result
end;
end;
Function Examine(alock :longint; var fib: TFileInfoBlock) : Boolean;
Begin
asm
move.l d2,-(sp)
move.l fib,d2 { pointer to FIB }
move.l alock,d1
move.l a6,d6 { save base pointer }
move.l _DosBase,a6
jsr _LVOExamine(a6)
move.l d6,a6 { restore base pointer }
tst.l d0
bne @success
bra @end
@success:
move.b #1,d0
@end:
move.b d0,@Result
move.l (sp)+,d2
end;
end;
{ Returns the parent directory of a lock }
Function ParentDir(alock : longint): longint;
Begin
asm
move.l alock,d1
move.l a6,d6 { save base pointer }
move.l _DosBase,a6
jsr _LVOParentDir(a6)
move.l d6,a6 { restore base pointer }
move.l d0,@Result
end;
end;
Function FindTask(p : PChar): PProcess;
Begin
asm
move.l a6,d6 { Save base pointer }
move.l p,d0
move.l d0,a1
move.l _ExecBase,a6
jsr _LVOFindTask(a6)
move.l d6,a6 { Restore base pointer }
move.l d0,@Result
end;
end;
{$S-}
Procedure stack_check; assembler;
{ Check for local variable allocation }
{ On Entry -> d0 : size of local stack we are trying to allocate }
asm
XDEF STACKCHECK
move.l sp,d1 { get value of stack pointer }
{ We must add some security, because Writing the RunError strings }
{ requires a LOT of stack space (at least 1030 bytes!) }
add.l #2048,d0
sub.l d0,d1 { sp - stack_size }
move.l _ExecBase,a0
move.l 276(A0),A0 { ExecBase.thisTask }
{ if allocated stack_pointer - splower <= 0 then stack_ovf }
cmp.l 58(A0),D1 { Task.SpLower }
bgt @Ok
move.l #202,d0
jsr HALT_ERROR { stack overflow }
@Ok:
end;
{ This routine from EXEC determines if the Ctrl-C key has }
{ been used since the last call to I/O routines. }
{ Use to halt the program. }
{ Returns the state of the old signals. }
Function SetSignal(newSignal: longint; SignalMask: longint): longint;
Begin
asm
move.l newSignal,d0
move.l SignalMask,d1
move.l a6,d6 { save Base pointer into scratch register }
move.l _ExecBase,a6
jsr _LVOSetSignal(a6)
move.l d6,a6
move.l d0,@Result
end;
end;
Function AllocVec(bytesize: longint; attributes: longint):longint;
Begin
asm
move.l bytesize,d0
move.l attributes,d1
move.l a6,d6 { save Base pointer into scratch register }
move.l _ExecBase,a6
jsr _LVOAllocVec(a6)
move.l d6,a6
move.l d0,@Result
end;
end;
Procedure FreeVec(p: longint);
Begin
asm
move.l p,a1
move.l a6,d6 { save Base pointer into scratch register }
move.l _ExecBase,a6
jsr _LVOFreeVec(a6)
move.l d6,a6
end;
end;
{ Converts an AMIGAOS error code to a TP compatible error code }
Procedure Error2InOut;
Begin
case errno of
ERROR_BAD_NUMBER,
ERROR_ACTION_NOT_KNOWN,
ERROR_NOT_IMPLEMENTED : InOutRes := 1;
ERROR_OBJECT_NOT_FOUND : InOutRes := 2;
ERROR_DIR_NOT_FOUND : InOutRes := 3;
ERROR_DISK_WRITE_PROTECTED : InOutRes := 150;
ERROR_OBJECT_WRONG_TYPE : InOutRes := 151;
ERROR_OBJECT_EXISTS,
ERROR_DELETE_PROTECTED,
ERROR_WRITE_PROTECTED,
ERROR_READ_PROTECTED,
ERROR_OBJECT_IN_USE,
ERROR_DIRECTORY_NOT_EMPTY : InOutRes := 5;
ERROR_NO_MORE_ENTRIES : InOutRes := 18;
ERROR_RENAME_ACROSS_DEVICES : InOutRes := 17;
ERROR_DISK_FULL : InOutRes := 101;
ERROR_INVALID_RESIDENT_LIBRARY : InoutRes := 153;
ERROR_BAD_HUNK : InOutRes := 153;
ERROR_NOT_A_DOS_DISK : InOutRes := 157;
ERROR_NO_DISK,
ERROR_DISK_NOT_VALIDATED,
ERROR_DEVICE_NOT_MOUNTED : InOutRes := 152;
ERROR_SEEK_ERROR : InOutRes := 156;
ERROR_LOCK_COLLISION,
ERROR_LOCK_TIMEOUT,
ERROR_UNLOCK_ERROR,
ERROR_INVALID_LOCK,
ERROR_INVALID_COMPONENT_NAME,
ERROR_BAD_STREAM_NAME,
ERROR_FILE_NOT_OBJECT : InOutRes := 6;
else
InOutres := errno;
end;
errno:=0;
end;
procedure CloseLibrary(lib : pointer);
{ Close the library pointed to in lib }
Begin
asm
MOVE.L A6,-(A7)
MOVE.L lib,a1
MOVE.L _ExecBase,A6
JSR _LVOCloseLibrary(A6)
MOVE.L (A7)+,A6
end;
end;
Function KickVersion: word; assembler;
asm
move.l _ExecBase, a0 { Get Exec Base }
move.w 20(a0), d0 { Return version - version at this offset }
end;
{ ************************ AMIGAOS SUPP ROUTINES ************************* }
(* Procedure CloseList(p: pFileList);*)
(***********************************************************************)
(* PROCEDURE CloseList *)
(* Description: This routine each time the program is about to *)
(* terminate, it closes all opened file handles, as this is not *)
(* handled by the operating system. *)
(* p -> Start of linked list of opened files *)
(***********************************************************************)
(* var
hp: pFileList;
hp1: pFileList;
h: longint;
Begin
hp:=p;
while Assigned(hp) do
Begin
if NOT hp^.closed then
Begin
h:=hp^.handle;
if (h <> StdInputHandle) and (h <> StdOutputHandle) and (h <> StdErrorHandle) then
Begin
{ directly close file here, it is faster then doing }
{ it do_close. }
asm
move.l h,d1
move.l a6,d6 { save a6 }
move.l _DOSBase,a6
jsr _LVOClose(a6)
move.l d6,a6 { restore a6 }
end;
end;
end;
hp1:=hp;
hp:=hp^.next;
dispose(hp1);
end;
end;*)
(* Procedure AddToList(var p: pFileList; h: longint);*)
(***********************************************************************)
(* PROCEDURE AddToList *)
(* Description: Adds a node to the linked list of files. *)
(* *)
(* p -> Start of File list linked list, if not allocated allocates *)
(* it for you. *)
(* h -> handle of file to add *)
(***********************************************************************)
(* var
hp: pFileList;
hp1: pFileList;
Begin
if p = nil then
Begin
new(p);
p^.handle:=h;
p^.closed := FALSE;
p^.next := nil;
exit;
end;
hp:=p;
{ Find last list in entry }
while assigned(hp) do
Begin
if hp^.next = nil then break;
hp:=hp^.next;
end;
{ Found last list in entry then add it to the list }
new(hp1);
hp^.next:=hp1;
hp1^.next:=nil;
hp1^.handle:=h;
hp1^.closed:=FALSE;
end;
Procedure SetClosedList(var p: pFileList; h: longint);
{ Set the file flag to closed if the file is being closed }
var
hp: pFileList;
Begin
hp:=p;
while assigned(hp) do
Begin
if hp^.handle = h then
Begin
hp^.closed:=TRUE;
break;
end;
hp:=hp^.next;
end;
end;*)
{*****************************************************************************
System Dependent Exit code
*****************************************************************************}
Procedure system_exit;
var
i: byte;
Begin
{ We must remove the CTRL-C FALG here because halt }
{ may call I/O routines, which in turn might call }
{ halt, so a recursive stack crash }
IF (SetSignal(0,0) AND SIGBREAKF_CTRL_C) <> 0 THEN
SetSignal(0,SIGBREAKF_CTRL_C);
{ Close remaining opened files }
{ CloseList(FileList); }
if (OrigDir <> 0) then
Begin
Unlock(CurrentDir(OrigDir));
OrigDir := 0;
end;
{ Is this a normal exit - YES, close libs }
IF NOT FromHalt then
Begin
{ close the libraries }
If _UtilityBase <> nil then
CloseLibrary(_UtilityBase);
If _DosBase <> nil then
CloseLibrary(_DosBase);
If _IntuitionBase <> nil then
CloseLibrary(_IntuitionBase);
_UtilityBase := nil;
_DosBase := nil;
_IntuitionBase := nil;
end;
{ Dispose of extraneous allocated pointers }
for I:=1 to 8 do
Begin
if pointerlist[i] <> 0 then FreeVec(pointerlist[i]);
end;
{ exitproc:=old_exit;obsolete }
end;
procedure halt(errnum : byte);
begin
{ Indicate to the SYSTEM EXIT procedure that we are calling it }
{ from halt, and that its library will be closed HERE and not }
{ in the exit procedure. }
FromHalt:=TRUE;
{ We must remove the CTRL-C FALG here because halt }
{ may call I/O routines, which in turn might call }
{ halt, so a recursive stack crash }
IF (SetSignal(0,0) AND SIGBREAKF_CTRL_C) <> 0 THEN
SetSignal(0,SIGBREAKF_CTRL_C);
{ WE can only FLUSH the stdio }
{ if the handles have correctly }
{ been set. }
{ No exit procedures exist }
{ if in initial state }
If NOT Initial then
Begin
do_exit;
flush(stderr);
end;
{ close the libraries }
If _UtilityBase <> nil then
CloseLibrary(_UtilityBase);
If _DosBase <> nil then
CloseLibrary(_DosBase);
If _IntuitionBase <> nil then
CloseLibrary(_IntuitionBase);
_UtilityBase := nil;
_DosBase := nil;
_IntuitionBase := nil;
asm
clr.l d0
move.b errnum,d0
move.l STKPTR,sp
rts
end;
end;
{ ************************ PARAMCOUNT/PARAMSTR *************************** }
function paramcount : longint;
Begin
paramcount := argc;
end;
function args : pointer; assembler;
asm
move.l __ARGS,d0
end;
Function GetParamCount(const p: pchar): longint;
var
i: word;
count: word;
Begin
i:=0;
count:=0;
while p[count] <> #0 do
Begin
if (p[count] <> ' ') and (p[count] <> #9) and (p[count] <> #0) then
Begin
i:=i+1;
while (p[count] <> ' ') and (p[count] <> #9) and (p[count] <> #0) do
count:=count+1;
end;
if p[count] = #0 then break;
count:=count+1;
end;
GetParamCount:=longint(i);
end;
Function GetParam(index: word; const p : pchar): string;
{ On Entry: index = string index to correct parameter }
{ On exit: = correct character index into pchar array }
{ Returns correct index to command line argument }
var
count: word;
localindex: word;
l: byte;
temp: string;
Begin
temp:='';
count := 0;
{ first index is one }
localindex := 1;
l:=0;
While p[count] <> #0 do
Begin
if (p[count] <> ' ') and (p[count] <> #9) then
Begin
if localindex = index then
Begin
while (p[count] <> #0) and (p[count] <> ' ') and (p[count] <> #9) and (l < 256) do
Begin
temp:=temp+p[count];
l:=l+1;
count:=count+1;
end;
temp[0]:=char(l);
GetParam:=temp;
exit;
end;
{ Point to next argument in list }
while (p[count] <> #0) and (p[count] <> ' ') and (p[count] <> #9) do
Begin
count:=count+1;
end;
localindex:=localindex+1;
end;
if p[count] = #0 then break;
count:=count+1;
end;
GetParam:=temp;
end;
Function GetProgramDir : String;
var
s1: string;
alock: longint;
counter : byte;
Begin
FillChar(@s1,255,#0);
{ GetLock of program directory }
asm
move.l a6,d6 { save a6 }
move.l _DOSBase,a6
jsr _LVOGetProgramDir(a6)
move.l d6,a6 { restore a6 }
move.l d0,alock { save the lock }
end;
if alock <> 0 then
Begin
{ Get the name from the lock! }
asm
movem.l d2/d3,-(sp) { save used registers }
move.l alock,d1
lea s1,a0 { Get pointer to string! }
move.l a0,d2
add.l #1,d2 { let us point past the length byte! }
move.l #255,d3
move.l a6,d6 { save a6 }
move.l _DOSBase,a6
jsr _LVONameFromLock(a6)
move.l d6,a6 { restore a6 }
movem.l (sp)+,d2/d3
end;
{ no check out the length of the string }
counter := 1;
while s1[counter] <> #0 do
Inc(counter);
s1[0] := char(counter-1);
GetProgramDir := s1;
end
else
GetProgramDir := '';
end;
Function GetProgramName : string;
{ Returns ONLY the program name }
{ There seems to be a bug in v39 since if the program is not }
{ called from its home directory the program name will also }
{ contain the path! }
var
s1: string;
counter : byte;
Begin
FillChar(@s1,255,#0);
asm
move.l d2,-(sp) { Save used register }
lea s1,a0 { Get pointer to string! }
move.l a0,d1
add.l #1,d1 { point to correct offset }
move.l #255,d2
move.l a6,d6 { save a6 }
move.l _DOSBase,a6
jsr _LVOGetProgramName(a6)
move.l d6,a6 { restore a6 }
move.l (sp)+,d2 { restore saved register }
end;
{ no check out and assign the length of the string }
counter := 1;
while s1[counter] <> #0 do
Inc(counter);
s1[0] := char(counter-1);
{ now remove any component path which should not be there }
for counter:=length(s1) downto 1 do
if (s1[counter] = '/') or (s1[counter] = ':') then break;
{ readjust counterv to point to character }
if counter <> 1 then
Inc(counter);
GetProgramName:=copy(s1,counter,length(s1));
end;
function paramstr(l : longint) : string;
var
p : pchar;
s1 : string;
begin
{ -> Call AmigaOS GetProgramName }
if l = 0 then
Begin
s1 := GetProgramDir;
{ If this is a root, then simply don't add '/' }
if s1[length(s1)] = ':' then
paramstr:=s1+GetProgramName
else
{ add backslash directory }
paramstr:=s1+'/'+GetProgramName
end
else
if (l>0) and (l<=paramcount) then
begin
p:=args;
paramstr:=GetParam(word(l),p);
end
else paramstr:='';
end;
{ ************************************************************************ }
procedure randomize;
var
hl : longint;
time : TDateStamp;
begin
DateStamp(time);
randseed:=time.ds_tick;
end;
function getheapstart:pointer;assembler;
asm
lea.l HEAP,a0
move.l a0,d0
end;
function getheapsize:longint;assembler;
asm
move.l HEAP_SIZE,d0
end ['D0'];
{ This routine is used to grow the heap. }
{ But here we do a trick, we say that the }
{ heap cannot be regrown! }
function sbrk( size: longint): pointer;
var
{ on exit -1 = if fails. }
p: longint;
i: byte;
Begin
p:=0;
{ Is the pointer list full }
if pointerlist[8] <> 0 then
begin
{ yes, then don't allocate and simply exit }
sbrk:=nil;
exit;
end;
{ Allocate best available memory }
p:=AllocVec(size,0);
if p = 0 then
sbrk:=nil
else
Begin
i:=1;
{ add it to the list of allocated pointers }
{ first find the last pointer in the list }
while (i < 8) and (pointerlist[i] <> 0) do
i:=i+1;
pointerlist[i]:=p;
sbrk:=pointer(p);
end;
end;
{$I heap.inc}
{****************************************************************************
Low Level File Routines
****************************************************************************}
procedure do_close(h : longint);
{ We cannot check for CTRL-C because this routine will be called }
{ on HALT to close all remaining opened files. Therefore no }
{ CTRL-C checking otherwise a recursive call might result! }
{$ifdef debug}
var
buffer: array[0..255] of char;
{$endif}
begin
{ check if the file handle is in the list }
{ if so the put its field to closed }
{ SetClosedList(FileList,h);}
{$ifdef debug}
asm
move.l h,d1
move.l a6,d6
move.l d2,-(sp)
move.l d3,-(sp)
lea buffer,a0
move.l a0,d2
move.l #255,d3
move.l _DosBase,a6
jsr _LVONameFromFH(a6)
move.l d6,a6
move.l (sp)+,d3
move.l (sp)+,d2
end;
WriteLn(Buffer);
{$endif debug}
asm
move.l h,d1
move.l a6,d6 { save a6 }
move.l _DOSBase,a6
jsr _LVOClose(a6)
move.l d6,a6 { restore a6 }
end;
end;
function do_isdevice(handle:longint):boolean;
begin
if (handle=stdoutputhandle) or (handle=stdinputhandle) or
(handle=stderrorhandle) then
do_isdevice:=TRUE
else
do_isdevice:=FALSE;
end;
procedure do_erase(p : pchar);
begin
if (Setsignal(0,0) AND SIGBREAKF_CTRL_C) <> 0 then
Begin
SetSignal(0,SIGBREAKF_CTRL_C);
Halt(CTRL_C);
end;
asm
move.l a6,d6 { save a6 }
move.l p,d1
move.l _DOSBase,a6
jsr _LVODeleteFile(a6)
tst.l d0 { zero = failure }
bne @noerror
jsr _LVOIoErr(a6)
move.w d0,errno
@noerror:
move.l d6,a6 { restore a6 }
end;
if errno <> 0 then
Error2InOut;
end;
procedure do_rename(p1,p2 : pchar);
begin
if (Setsignal(0,0) AND SIGBREAKF_CTRL_C) <> 0 then
Begin
SetSignal(0,SIGBREAKF_CTRL_C);
Halt(CTRL_C);
end;
asm
move.l a6,d6 { save a6 }
move.l d2,-(sp) { save d2 }
move.l p1,d1
move.l p2,d2
move.l _DOSBase,a6
jsr _LVORename(a6)
move.l (sp)+,d2 { restore d2 }
tst.l d0
bne @dosreend { if zero = error }
jsr _LVOIoErr(a6)
move.w d0,errno
@dosreend:
move.l d6,a6 { restore a6 }
end;
if errno <> 0 then
Error2InOut;
end;
function do_write(h,addr,len : longint) : longint;
begin
if (Setsignal(0,0) AND SIGBREAKF_CTRL_C) <> 0 then
Begin
SetSignal(0,SIGBREAKF_CTRL_C);
Halt(CTRL_C);
end;
if len <= 0 then
Begin
do_write:=0;
exit;
end;
asm
move.l a6,d6
movem.l d2/d3,-(sp)
move.l h,d1 { we must of course set up the }
move.l addr,d2 { parameters BEFORE getting }
move.l len,d3 { _DOSBase }
move.l _DOSBase,a6
jsr _LVOWrite(a6)
movem.l (sp)+,d2/d3
cmp.l #-1,d0
bne @doswrend { if -1 = error }
jsr _LVOIoErr(a6)
move.w d0,errno
bra @doswrend2
@doswrend:
{ we must restore the base pointer before setting the result }
move.l d6,a6
move.l d0,@RESULT
bra @end
@doswrend2:
move.l d6,a6
@end:
end;
If errno <> 0 then
Error2InOut;
end;
function do_read(h,addr,len : longint) : longint;
begin
if (Setsignal(0,0) AND SIGBREAKF_CTRL_C) <> 0 then
Begin
SetSignal(0,SIGBREAKF_CTRL_C);
Halt(CTRL_C);
end;
if len <= 0 then
Begin
do_read:=0;
exit;
end;
asm
move.l a6,d6
movem.l d2/d3,-(sp)
move.l h,d1 { we must set up aparamters BEFORE }
move.l addr,d2 { setting up a6 for the OS call }
move.l len,d3
move.l _DOSBase,a6
jsr _LVORead(a6)
movem.l (sp)+,d2/d3
cmp.l #-1,d0
bne @doswrend { if -1 = error }
jsr _LVOIoErr(a6)
move.w d0,errno
bra @doswrend2
@doswrend:
{ to store a result for the function }
{ we must of course first get back the}
{ base pointer! }
move.l d6,a6
move.l d0,@RESULT
bra @end
@doswrend2:
move.l d6,a6
@end:
end;
If errno <> 0 then
Error2InOut;
end;
function do_filepos(handle : longint) : longint;
begin
if (Setsignal(0,0) AND SIGBREAKF_CTRL_C) <> 0 then
Begin
{ Clear CTRL-C signal }
SetSignal(0,SIGBREAKF_CTRL_C);
Halt(CTRL_C);
end;
asm
move.l a6,d6
move.l handle,d1
move.l d2,-(sp)
move.l d3,-(sp) { save registers }
clr.l d2 { offset 0 }
move.l #0,d3 { OFFSET_CURRENT }
move.l _DOSBase,a6
jsr _LVOSeek(a6)
move.l (sp)+,d3 { restore registers }
move.l (sp)+,d2
cmp.l #-1,d0 { is there a file access error? }
bne @noerr
jsr _LVOIoErr(a6)
move.w d0,errno
bra @fposend
@noerr:
move.l d6,a6 { restore a6 }
move.l d0,@Result
bra @end
@fposend:
move.l d6,a6 { restore a6 }
@end:
end;
If errno <> 0 then
Error2InOut;
end;
procedure do_seek(handle,pos : longint);
begin
if (Setsignal(0,0) AND SIGBREAKF_CTRL_C) <> 0 then
Begin
{ Clear CTRL-C signal }
SetSignal(0,SIGBREAKF_CTRL_C);
Halt(CTRL_C);
end;
asm
move.l a6,d6
move.l handle,d1
move.l d2,-(sp)
move.l d3,-(sp) { save registers }
move.l pos,d2
{ -1 }
move.l #$ffffffff,d3 { OFFSET_BEGINNING }
move.l _DOSBase,a6
jsr _LVOSeek(a6)
move.l (sp)+,d3 { restore registers }
move.l (sp)+,d2
cmp.l #-1,d0 { is there a file access error? }
bne @noerr
jsr _LVOIoErr(a6)
move.w d0,errno
bra @seekend
@noerr:
@seekend:
move.l d6,a6 { restore a6 }
end;
If errno <> 0 then
Error2InOut;
end;
function do_seekend(handle:longint):longint;
begin
if (Setsignal(0,0) AND SIGBREAKF_CTRL_C) <> 0 then
Begin
{ Clear CTRL-C signal }
SetSignal(0,SIGBREAKF_CTRL_C);
Halt(CTRL_C);
end;
asm
{ seek from end of file }
move.l a6,d6
move.l handle,d1
move.l d2,-(sp)
move.l d3,-(sp) { save registers }
clr.l d2
move.l #1,d3 { OFFSET_END }
move.l _DOSBase,a6
jsr _LVOSeek(a6)
move.l (sp)+,d3 { restore registers }
move.l (sp)+,d2
cmp.l #-1,d0 { is there a file access error? }
bne @noerr
jsr _LVOIoErr(a6)
move.w d0,errno
bra @seekend
@noerr:
move.l d6,a6 { restore a6 }
move.l d0,@Result
bra @end
@seekend:
move.l d6,a6 { restore a6 }
@end:
end;
If Errno <> 0 then
Error2InOut;
end;
function do_filesize(handle : longint) : longint;
var
aktfilepos : longint;
begin
if (Setsignal(0,0) AND SIGBREAKF_CTRL_C) <> 0 then
Begin
{ Clear CTRL-C signal }
SetSignal(0,SIGBREAKF_CTRL_C);
Halt(CTRL_C);
end;
aktfilepos:=do_filepos(handle);
{ We have to do this two times, because seek returns the }
{ OLD position }
do_filesize:=do_seekend(handle);
do_filesize:=do_seekend(handle);
do_seek(handle,aktfilepos);
end;
procedure do_truncate (handle,pos:longint);
begin
{ Point to the end of the file }
{ with the new size }
asm
@noerr_one: { Seek a second time }
move.l a6,d6 { Save base pointer }
move.l handle,d1
move.l d2,-(sp)
move.l d3,-(sp) { save registers }
move.l pos,d2
move.l #-1,d3 { Setup correct move type }
move.l _DOSBase,a6 { from beginning of file }
jsr _LVOSetFileSize(a6)
move.l (sp)+,d3 { restore registers }
move.l (sp)+,d2
cmp.l #-1,d0 { is there a file access error? }
bne @noerr
jsr _LVOIoErr(a6)
move.w d0,errno { Global variable, so no need }
@noerr: { to restore base pointer now }
move.l d6,a6 { Restore base pointer }
end;
If Errno <> 0 then
Error2InOut;
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
i,j : longint;
oflags: longint;
path : string;
buffer : array[0..255] of char;
index : integer;
s : string;
begin
path:=strpas(p);
for index:=1 to length(path) do
if path[index]='\' then path[index]:='/';
{ remove any dot characters and replace by their current }
{ directory equivalent. }
if pos('../',path) = 1 then
{ look for parent directory }
Begin
delete(path,1,3);
getdir(0,s);
j:=length(s);
while (s[j] <> '/') AND (s[j] <> ':') AND (j > 0 ) do
dec(j);
if j > 0 then
s:=copy(s,1,j);
path:=s+path;
end
else
if pos('./',path) = 1 then
{ look for current directory }
Begin
delete(path,1,2);
getdir(0,s);
if (s[length(s)] <> '/') and (s[length(s)] <> ':') then
s:=s+'/';
path:=s+path;
end;
move(path[1],buffer,length(path));
buffer[length(path)]:=#0;
{ 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;
{ convert filemode to filerec modes }
{ READ/WRITE on existing file }
{ RESET/APPEND }
oflags := 1005;
case (flags and 3) of
0 : begin
filerec(f).mode:=fminput;
end;
1 : filerec(f).mode:=fmoutput;
2 : filerec(f).mode:=fminout;
end;
{ READ/WRITE mode, create file in all cases }
{ REWRITE }
if (flags and $1000)<>0 then
begin
filerec(f).mode:=fmoutput;
oflags := 1006;
end
else
{ READ/WRITE mode on existing file }
{ APPEND }
if (flags and $100)<>0 then
begin
filerec(f).mode:=fmoutput;
oflags := 1005;
end;
{ empty name is special }
if p[0]=#0 then
begin
case filerec(f).mode of
fminput : filerec(f).handle:=StdInputHandle;
fmappend,
fmoutput : begin
filerec(f).handle:=StdOutputHandle;
filerec(f).mode:=fmoutput; {fool fmappend}
end;
end;
exit;
end;
asm
move.l a6,d6 { save a6 }
move.l d2,-(sp)
lea buffer,a0
move.l a0,d1
move.l oflags,d2 { MODE_READWRITE }
move.l _DOSBase,a6
jsr _LVOOpen(a6)
tst.l d0
bne @noopenerror { on zero an error occured }
jsr _LVOIoErr(a6)
move.w d0,errno
bra @openend
@noopenerror:
move.l (sp)+,d2
move.l d6,a6 { restore a6 }
move.l d0,i { we need the base pointer to access this variable }
bra @end
@openend:
move.l d6,a6 { restore a6 }
move.l (sp)+,d2
@end:
end;
(* if Errno = 0 then*)
{ No error, add file handle to linked list }
{ this must be checked before the call to }
{ Error2InIOut since it resets Errno to 0 }
(* AddToList(FileList,i);*)
If Errno <> 0 then
Error2InOut;
filerec(f).handle:=i;
if ((Flags and $100) <> 0) and
(FileRec (F).Handle <> UnusedHandle) then
do_seekend(filerec(f).handle);
end;
{*****************************************************************************
UnTyped File Handling
*****************************************************************************}
{$i file.inc}
{*****************************************************************************
Typed File Handling
*****************************************************************************}
{$i typefile.inc}
{*****************************************************************************
Text File Handling
*****************************************************************************}
{$i text.inc}
{*****************************************************************************
Directory Handling
*****************************************************************************}
procedure mkdir(const s : string);[IOCheck];
var
buffer : array[0..255] of char;
j: Integer;
temp : string;
begin
{ We must check the Ctrl-C before IOChecking of course! }
if (Setsignal(0,0) AND SIGBREAKF_CTRL_C) <> 0 then
Begin
{ Clear CTRL-C signal }
SetSignal(0,SIGBREAKF_CTRL_C);
Halt(CTRL_C);
end;
If InOutRes <> 0 then exit;
temp:=s;
for j:=1 to length(temp) do
if temp[j] = '\' then temp[j] := '/';
move(temp[1],buffer,length(temp));
buffer[length(temp)]:=#0;
asm
move.l a6,d6
{ we must load the parameters BEFORE setting up the }
{ OS call with a6 }
lea buffer,a0
move.l a0,d1
move.l _DosBase,a6
jsr _LVOCreateDir(a6)
tst.l d0
bne @noerror
jsr _LVOIoErr(a6)
move.w d0,errno
bra @end
@noerror:
{ Now we must unlock the directory }
{ d0 = lock returned by create dir }
move.l d0,d1
jsr _LVOUnlock(a6)
@end:
{ restore base pointer }
move.l d6,a6
end;
If errno <> 0 then
Error2InOut;
end;
procedure rmdir(const s : string);[IOCheck];
var
buffer : array[0..255] of char;
j : Integer;
temp : string;
begin
{ We must check the Ctrl-C before IOChecking of course! }
if (Setsignal(0,0) AND SIGBREAKF_CTRL_C) <> 0 then
Begin
{ Clear CTRL-C signal }
SetSignal(0,SIGBREAKF_CTRL_C);
Halt(CTRL_C);
end;
If InOutRes <> 0 then exit;
temp:=s;
for j:=1 to length(temp) do
if temp[j] = '\' then temp[j] := '/';
move(temp[1],buffer,length(temp));
buffer[length(temp)]:=#0;
do_erase(buffer);
end;
procedure chdir(const s : string);[IOCheck];
var
buffer : array[0..255] of char;
alock : longint;
FIB :pFileInfoBlock;
j: integer;
temp : string;
begin
if (Setsignal(0,0) AND SIGBREAKF_CTRL_C) <> 0 then
Begin
{ Clear CTRL-C signal }
SetSignal(0,SIGBREAKF_CTRL_C);
Halt(CTRL_C);
end;
If InOutRes <> 0 then exit;
temp:=s;
for j:=1 to length(temp) do
if temp[j] = '\' then temp[j] := '/';
{ Return parent directory }
if s = '..' then
Begin
getdir(0,temp);
j:=length(temp);
{ Look through the previous paths }
while (temp[j] <> '/') AND (temp[j] <> ':') AND (j > 0 ) do
dec(j);
if j > 0 then
temp:=copy(temp,1,j);
end;
alock := 0;
fib:=nil;
new(fib);
move(temp[1],buffer,length(temp));
buffer[length(temp)]:=#0;
{ Changing the directory is a pretty complicated affair }
{ 1) Obtain a lock on the directory }
{ 2) CurrentDir the lock }
asm
lea buffer,a0
move.l a0,d1 { pointer to buffer in d1 }
move.l d2,-(sp) { save d2 register }
move.l #-2,d2 { ACCESS_READ lock }
move.l a6,d6 { Save base pointer }
move.l _DosBase,a6
jsr _LVOLock(a6){ Lock the directory }
move.l (sp)+,d2 { Restore d2 register }
tst.l d0 { zero = error! }
bne @noerror
jsr _LVOIoErr(a6)
move.w d0,errno
move.l d6,a6 { reset base pointer }
bra @End
@noerror:
move.l d6,a6 { reset base pointer }
move.l d0,alock { save the lock }
@End:
end;
If errno <> 0 then
Begin
Error2InOut;
exit;
end;
if (Examine(alock, fib^) = TRUE) AND (fib^.fib_DirEntryType > 0) then
Begin
alock := CurrentDir(alock);
if OrigDir = 0 then
Begin
OrigDir := alock;
alock := 0;
end;
end;
if alock <> 0 then
Unlock(alock);
if assigned(fib) then dispose(fib);
end;
Procedure GetCwd(var path: string);
var
lock: longint;
fib: PfileInfoBlock;
len : integer;
newlock : longint;
elen : integer;
Process : PProcess;
Begin
len := 0;
path := '';
fib := nil;
{ By using a pointer instead of a local variable}
{ we are assured that the pointer is aligned on }
{ a dword boundary. }
new(fib);
Process := FindTask(nil);
if (process^.pr_Task.tc_Node.ln_Type = NT_TASK) then
Begin
path:='';
exit;
end;
lock := DupLock(process^.pr_CurrentDir);
if (Lock = 0) then
Begin
path:='';
exit;
end;
While (lock <> 0) and (Examine(lock,FIB^) = TRUE) do
Begin
elen := strlen(fib^.fib_FileName);
if (len + elen + 2 > 255) then
break;
newlock := ParentDir(lock);
if (len <> 0) then
Begin
if (newlock <> 0) then
path:='/'+path
else
path:=':'+path;
path:=strpas(fib^.fib_FileName)+path;
Inc(len);
end
else
Begin
path:=strpas(fib^.fib_Filename);
if (newlock = 0) then
path:=path+':';
end;
len := len + elen;
UnLock(lock);
lock := newlock;
end;
if (lock <> 0) then
Begin
UnLock(lock);
path := '';
end;
if assigned(fib) then dispose(fib);
end;
procedure getdir(drivenr : byte;var dir : string);
begin
if (Setsignal(0,0) AND SIGBREAKF_CTRL_C) <> 0 then
Begin
{ Clear CTRL-C signal }
SetSignal(0,SIGBREAKF_CTRL_C);
Halt(CTRL_C);
end;
GetCwd(dir);
If errno <> 0 then
Error2InOut;
end;
{*****************************************************************************
SystemUnit Initialization
*****************************************************************************}
Procedure Startup; Assembler;
asm
move.l a6,d6 { save a6 }
move.l (4),a6 { get ExecBase pointer }
move.l a6,_ExecBase
suba.l a1,a1
jsr _LVOFindTask(a6)
move.l d0,a0
{ Check the stack value }
{ are we running from a CLI? }
tst.l 172(a0) { 172 = pr_CLI }
bne @fromCLI
{ we do not support Workbench yet .. }
move.l d6,a6 { restore a6 }
move.l #1,d0
jsr HALT_ERROR
@fromCLI:
{ Open the following libraries: }
{ Intuition.library }
{ dos.library }
moveq.l #0,d0
move.l intuitionname,a1 { directly since it is a pchar }
jsr _LVOOpenLibrary(a6)
move.l d0,_IntuitionBase
beq @exitprg
moveq.l #0,d0
move.l utilityname,a1 { directly since it is a pchar }
jsr _LVOOpenLibrary(a6)
move.l d0,_UtilityBase
beq @exitprg
moveq.l #0,d0
move.l dosname,a1 { directly since it is a pchar }
jsr _LVOOpenLibrary(a6)
move.l d0,_DOSBase
beq @exitprg
{ Find standard input and output }
{ for CLI }
@OpenFiles:
move.l _DOSBase,a6
jsr _LVOInput(a6) { get standard in }
move.l d0, StdInputHandle { save standard Input handle }
{ move.l d0,d1 }{ set up for next call }
{ jsr _LVOIsInteractive(a6)}{ is it interactive? }
{ move.l #_Input,a0 }{ get file record again }
{ move.b d0,INTERACTIVE(a0) }{ set flag }
{ beq StdInNotInteractive }{ skip this if not interactive }
{ move.l BUFFER(a0),a1 }{ get buffer address }
{ add.l #1,a1 }{ make end one byte further on }
{ move.l a1,MAX(a0) }{ set buffer size }
{ move.l a1,CURRENT(a0) }{ will need a read }
bra @OpenStdOutput
@StdInNotInteractive
{ jsr _p%FillBuffer } { fill the buffer }
@OpenStdOutput
jsr _LVOOutput(a6) { get ouput file handle }
move.l d0,StdOutputHandle { get file record }
bra @startupend
{ move.l d0,d1 } { set up for call }
{ jsr _LVOIsInteractive(a6) } { is it interactive? }
{ move.l #_Output,a0 } { get file record }
{ move.b d0,INTERACTIVE(a0)} { set flag }
@exitprg:
move.l d6,a6 { restore a6 }
move.l #219,d0
jsr HALT_ERROR
@startupend:
move.l d6,a6 { restore a6 }
end;
begin
errno:= 0;
FromHalt := FALSE;
{ Initial state is on -- in case of RunErrors before the i/o handles are }
{ ok. }
Initial:=TRUE;
{ Initialize ExitProc }
ExitProc:=Nil;
Startup;
{ Setup heap }
InitHeap;
{ Setup stdin, stdout and stderr }
OpenStdIO(Input,fmInput,StdInputHandle);
OpenStdIO(Output,fmOutput,StdOutputHandle);
OpenStdIO(StdOut,fmOutput,StdOutputHandle);
{ The Amiga does not seem to have a StdError }
{ handle, therefore make the StdError handle }
{ equal to the StdOutputHandle. }
StdErrorHandle := StdOutputHandle;
OpenStdIO(StdErr,fmOutput,StdErrorHandle);
{ Now Handles and function handlers are setup }
{ correctly. }
Initial:=FALSE;
{ Reset IO Error }
InOutRes:=0;
{ Startup }
{ Only AmigaOS v2.04 or greater is supported }
If KickVersion < 36 then
Begin
WriteLn('v36 or greater of Kickstart required.');
Halt(1);
end;
argc:=GetParamCount(args);
OrigDir := 0;
FileList := nil;
{$ifdef HASVARIANT}
initvariantmanager;
{$endif HASVARIANT}
end.
{
$Log: system.pas,v $
Revision 1.9 2003/10/25 23:42:35 hajny
* THandle in sysutils common using System.THandle
Revision 1.8 2003/09/29 18:52:36 hajny
* append fix applied to Amiga, Atari, EMX, GO32v2, OS/2 and Watcom
Revision 1.7 2003/09/27 11:52:35 peter
* sbrk returns pointer
Revision 1.6 2002/10/20 12:00:52 carl
- remove objinc.inc (unused file)
* update makefiles accordingly
Revision 1.5 2002/10/13 09:25:14 florian
+ call to initvariantmanager inserted
Revision 1.4 2002/09/07 16:01:16 peter
* old logs removed and tabs fixed
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