home *** CD-ROM | disk | FTP | other *** search
- {
- $Id: sysamiga.pas,v 1.9 1998/08/17 12:34:22 carl Exp $
- This file is part of the Free Pascal run time library.
- Copyright (c) 1993,98 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 sysamiga;
-
- {--------------------------------------------------------------------}
- { LEFT TO DO: }
- {--------------------------------------------------------------------}
- { o GetDir with different drive numbers }
- {--------------------------------------------------------------------}
-
- {$I os.inc}
-
- { AmigaOS uses character #10 as eoln only }
- {$DEFINE SHORT_LINEBREAK}
-
- interface
-
- { used for single computations }
- const BIAS4 = $7f-1;
-
- {$I systemh.inc}
-
- {$I heaph.inc}
-
- 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;
- 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;*)
-
-
- Procedure ExitCall;
- 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;
- 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;
-
- { 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): longint;
- 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:=-1;
- exit;
- end;
- { Allocate best available memory }
- p:=AllocVec(size,0);
- if p = 0 then
- sbrk:=-1
- 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:=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 $10) the file will be append
- when (flags and $100) the file will be truncate/rewritten
- when (flags and $1000) 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 $1000)=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 $100)<>0 then
- begin
- filerec(f).mode:=fmoutput;
- oflags := 1006;
- end
- else
- { READ/WRITE mode on existing file }
- { APPEND }
- if (flags and $10)<>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 $10)<>0 then
- do_seekend(filerec(f).handle);
-
- end;
-
- {*****************************************************************************
- UnTyped File Handling
- *****************************************************************************}
-
- {$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;
- { to test stack depth }
- loweststack:=maxlongint;
- { Setup heap }
- InitHeap;
- { Setup stdin, stdout and stderr }
- OpenStdIO(Input,fmInput,StdInputHandle);
- OpenStdIO(Output,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;
- old_Exit:=exitproc;
- Exitproc:=@ExitCall;
- end.
-
-
- {
- $Log: sysamiga.pas,v $
- Revision 1.9 1998/08/17 12:34:22 carl
- * chdir accepts .. characters
- + added ctrl-c checking
- + implemented sbrk
- * exit code was never called if no error was found on exit!
- * register was not saved in do_open
-
- Revision 1.8 1998/07/13 12:32:18 carl
- * do_truncate works, some cleanup
-
- Revision 1.6 1998/07/02 12:37:52 carl
- * IOCheck for chdir,rmdir and mkdir as in TP
-
- Revision 1.5 1998/07/01 14:30:56 carl
- * forgot that includes are case sensitive
-
- Revision 1.4 1998/07/01 14:13:50 carl
- * do_open bugfix
- * correct conversion of Amiga error codes to TP error codes
- * InoutRes word bugfix
- * parameter counting fixed
- * new stack checking implemented
- + IOCheck for chdir,rmdir,getdir and rmdir
- * do_filepos was wrong
- + chdir correctly implemented
- * getdir correctly implemented
-
- Revision 1.1.1.1 1998/03/25 11:18:47 root
- * Restored version
-
- Revision 1.14 1998/03/21 04:20:09 carl
- * correct ExecBase pointer (from Nils Sjoholm)
- * correct OpenLibrary vector (from Nils Sjoholm)
-
- Revision 1.13 1998/03/14 21:34:32 carl
- * forgot to save a6 in Startup routine
-
- Revision 1.12 1998/02/24 21:19:42 carl
- *** empty log message ***
-
- Revision 1.11 1998/02/23 02:22:49 carl
- * bugfix if linking problems
-
- Revision 1.9 1998/02/06 16:34:32 carl
- + do_open is now standard with other platforms
-
- Revision 1.8 1998/02/02 15:01:45 carl
- * fixed bug with opening library versions (from Nils Sjoholm)
-
- Revision 1.7 1998/01/31 19:35:19 carl
- + added opening of utility.library
-
- Revision 1.6 1998/01/29 23:20:54 peter
- - Removed Backslash convert
-
- Revision 1.5 1998/01/27 10:55:04 peter
- * Amiga uses / not \, so change AllowSlash -> AllowBackSlash
-
- Revision 1.4 1998/01/25 21:53:20 peter
- + Universal Handles support for StdIn/StdOut/StdErr
- * Updated layout of sysamiga.pas
-
- Revision 1.3 1998/01/24 21:09:53 carl
- + added missing input/output function pointers
-
- Revision 1.2 1998/01/24 14:08:25 carl
- * RunError 217 --> RunError 219 (cannot open lib)
- + Standard Handle names implemented
-
- Revision 1.1 1998/01/24 05:12:15 carl
- + initial revision, some stuff still missing though.
- (and as you might imagine ... untested :))
- }
-