fpc/packages/extra/palmunits/crc.pp
2005-02-14 17:13:06 +00:00

51 lines
1.4 KiB
ObjectPascal

{$MACRO ON}
(******************************************************************************
*
* Copyright (c) 1995-2000 Palm Computing, Inc. or its subsidiaries.
* All rights reserved.
*
* File: Crc.h
*
* Release: Palm OS SDK 4.0 (63220)
*
* Description:
* This is the header file for the CRC calculation routines for Pilot.
*
* History:
* May 10, 1995 Created by Vitaly Kruglikov
* 05/10/95 vmk Created by Vitaly Kruglikov.
* 09/10/99 kwk Crc16CalcBlock takes a const void *.
*
*****************************************************************************)
unit crc;
interface
uses palmos, coretraps;
(********************************************************************
* CRC Calculation Routines
* These are define as syscall calls only under emulation mode or
* under native mode from the module that actually installs the trap
* vectors
********************************************************************)
//-------------------------------------------------------------------
// API
//-------------------------------------------------------------------
// Crc16CalcBlock()
//
// Calculate the 16-bit CRC of a data block using the table lookup method.
//
function Crc16CalcBlock(const bufP: Pointer; count, crc: UInt16): UInt16; syscall sysTrapCrc16CalcBlock;
//UInt16 Crc16CalcBigBlock(void *bufP, UInt32 count, UInt16 crc);
implementation
end.