dos_compilers/Borland Turbo Pascal v4/SYSTEM.DOC
2024-07-01 21:08:56 -07:00

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{*******************************************************}
{ }
{ Turbo Pascal Version 4.0 }
{ SYSTEM Unit Interface Documentation }
{ (Only the variables are listed. For a complete }
{ reference to System functions and procedures, }
{ refer to the Owner's Handbook) }
{ }
{ Copyright (c) 1987 by Borland International, Inc. }
{ }
{*******************************************************}
unit System;
interface
var
Input: Text; { Input standard file }
Output: Text; { Output standatd file }
PrefixSeg: Word; { Program segment prefix }
HeapOrg: Pointer; { Heap origin }
HeapPtr: Pointer; { Heap pointer }
FreePtr: Pointer; { Free list pointer }
FreeMin: Word; { Minimum free list size }
HeapError: Pointer; { Heap error function }
ExitProc: Pointer; { Exit procedure }
ExitCode: Integer; { Exit code }
ErrorAddr: Pointer; { Runtime error address }
RandSeed: Longint; { Random seed }
SaveInt00: Pointer; { Saved interrupt $00 }
SaveInt02: Pointer; { Saved interrupt $02 }
SaveInt23: Pointer; { Saved interrupt $23 }
SaveInt24: Pointer; { Saved interrupt $24 }
SaveInt75: Pointer; { Saved interrupt $75 }
FileMode: Byte; { File open mode }
implementation