360 lines
12 KiB
C
360 lines
12 KiB
C
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/****************************************************************************
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*
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* Open Watcom Project
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*
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* Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
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*
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* ========================================================================
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*
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* This file contains Original Code and/or Modifications of Original
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* Code as defined in and that are subject to the Sybase Open Watcom
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* Public License version 1.0 (the 'License'). You may not use this file
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* except in compliance with the License. BY USING THIS FILE YOU AGREE TO
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* ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
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* provided with the Original Code and Modifications, and is also
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* available at www.sybase.com/developer/opensource.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
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* ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
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* NON-INFRINGEMENT. Please see the License for the specific language
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* governing rights and limitations under the License.
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*
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* ========================================================================
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*
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* Description: RISC oriented string functions designed to access memory
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* as aligned 32- or 64-bit words whenever possible.
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*
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****************************************************************************/
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#ifndef _RISCSTR_H_INCLUDED
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#define _RISCSTR_H_INCLUDED
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/*
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* Determine if we're building RISC versions of string/memory routines.
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*/
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#if defined(__AXP__) || defined(__PPC__)
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#define __RISCSTR__
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#endif
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#ifdef __RISCSTR__ /* do nothing if not RISC target */
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#include "variety.h"
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#include "widechar.h"
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#include <string.h>
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#include <wchar.h>
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#include "watcom.h"
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/*
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* Choose between 32- and 64-bit words.
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*/
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#define USE_INT64 0 /* no 64-bit stuff for now */
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#ifndef USE_INT64
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#ifdef __AXP__
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#define USE_INT64 1
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#else
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#define USE_INT64 0
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#endif
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#endif
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#if USE_INT64
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#define INT __int64
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#define UINT unsigned __int64
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#else
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#define INT int
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#define UINT uint_32
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#endif
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#define BYTES_PER_WORD ( sizeof( UINT ) )
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#define INT_SIZE ( BYTES_PER_WORD * 8 )
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#define CHARS_PER_WORD ( BYTES_PER_WORD / CHARSIZE )
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#define MOD_BYTES_PER_WORD(__n) ( (__n) & (BYTES_PER_WORD-1) )
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/*
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* Macros to mask off a single character.
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*/
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#if USE_INT64
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#define BYTE1 ( _riscdata->byteMasks[0].val )
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#define BYTE2 ( _riscdata->byteMasks[1].val )
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#define BYTE3 ( _riscdata->byteMasks[2].val )
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#define BYTE4 ( _riscdata->byteMasks[3].val )
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#define BYTE5 ( _riscdata->byteMasks[4].val )
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#define BYTE6 ( _riscdata->byteMasks[5].val )
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#define BYTE7 ( _riscdata->byteMasks[6].val )
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#define BYTE8 ( _riscdata->byteMasks[7].val )
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#else
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#define BYTE1 ( 0x000000FF )
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#define BYTE2 ( 0x0000FF00 )
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#define BYTE3 ( 0x00FF0000 )
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#define BYTE4 ( 0xFF000000 )
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#endif
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#ifdef __WIDECHAR__
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#define CHR1MASK ( BYTE1 | BYTE2 )
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#define CHR2MASK ( BYTE3 | BYTE4 )
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#else
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#define CHR1MASK ( BYTE1 )
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#define CHR2MASK ( BYTE2 )
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#define CHR3MASK ( BYTE3 )
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#define CHR4MASK ( BYTE4 )
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#endif
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#ifdef __WIDECHAR__
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#define CHR1(__w) ( (__w) & CHR1MASK )
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#define CHR2(__w) ( (__w) & CHR2MASK )
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#else
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#define CHR1(__w) ( (__w) & BYTE1 )
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#define CHR2(__w) ( (__w) & BYTE2 )
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#define CHR3(__w) ( (__w) & BYTE3 )
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#define CHR4(__w) ( (__w) & BYTE4 )
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#if USE_INT64
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#define CHR5(__w) ( (__w) & BYTE5 )
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#define CHR6(__w) ( (__w) & BYTE6 )
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#define CHR7(__w) ( (__w) & BYTE7 )
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#define CHR8(__w) ( (__w) & BYTE8 )
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#endif
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#endif
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/*
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* Macros for extracting the first characters in a word.
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*/
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#if USE_INT64
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#define FRONT_BYTES(__n) ( _riscdata->frontCharsMasks[(__n)].val )
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#define FRONT_CHRS(__w,__o) ( (__w) & FRONT_BYTES_riscdata[(__o)].val )
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#else
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// extern UINT __FRONT_BYTES[];
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// #define FRONT_BYTES __FRONT_BYTES
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#define FRONT_BYTES ( _riscdata->frontCharsMasks )
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#define FRONT_CHRS(__w,__o) ( (__w) & FRONT_BYTES[(__o)] )
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#endif
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/*
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* Macros for ignoring the first characters in a word.
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*/
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#if USE_INT64
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#define SKIP_CHRS_MASKS(__n) ( _riscdata->skipCharsMasks[(__n)].val )
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#define SKIP_CHRS(__w,__o) ( (__w) & SKIP_CHRS_MASKS(__o) )
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#else
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// extern UINT __SKIP_CHRS_MASKS[];
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// #define SKIP_CHRS_MASKS __SKIP_CHRS_MASKS
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#define SKIP_CHRS_MASKS(__n) ( _riscdata->skipCharsMasks[(__n)] )
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#define SKIP_CHRS(__w,__o) ( (__w) & SKIP_CHRS_MASKS(__o) )
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#endif
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/*
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* Macros for checking if a word contains a null byte.
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*/
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#if USE_INT64
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#define SUB_M ( _riscdata->_01Mask.val )
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#define NIL_M ( _riscdata->_80Mask.val )
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#define SUB_MASK(__n) ( _riscdata->subMasks[(__n)].val )
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#else
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#ifdef __WIDECHAR__
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#define SUB_M ( 0x00010001 )
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#define NIL_M ( 0x80008000 )
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#else
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#define SUB_M ( 0x01010101 )
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#define NIL_M ( 0x80808080 )
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#endif
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// extern UINT __SubMask[];
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// #define SUB_MASK __SubMask
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#define SUB_MASK(__n) ( _riscdata->subMasks[(__n)] )
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#endif
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#define GOT_NIL(__w) ( ( (~(__w)) & ((__w) - SUB_M) ) & NIL_M )
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#ifdef __WIDECHAR__
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#define OFFSET_GOT_NIL(__w,__o) ( ( (~(__w)) & ((__w) - SUB_MASK((__o)/CHARSIZE)) ) & NIL_M )
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#else
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#define OFFSET_GOT_NIL(__w,__o) ( ( (~(__w)) & ((__w) - SUB_MASK(__o)) ) & NIL_M )
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#endif
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/*
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* Some handy pointer manipulation macros.
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*/
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#define ROUND(__p) ( (UINT*) ( (UINT)(__p) & (-sizeof(UINT)) ) )
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#define OFFSET(__p) ( ((unsigned int)(__p)) & (sizeof(UINT)-1) )
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/*
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* Macros for uppercase and lowercase stuff.
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*/
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#ifdef __WIDECHAR__
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#define CHR1_A ( 0x00000041 )
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#define CHR2_A ( 0x00410000 )
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#define CHR1_Z ( 0x0000005A )
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#define CHR2_Z ( 0x005A0000 )
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#define CHR1_A2a(s) ( s | 0x00000020 )
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#define CHR2_A2a(s) ( s | 0x00200000 )
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#else
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#define CHR1_A ( 0x00000041 )
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#define CHR2_A ( 0x00004100 )
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#define CHR3_A ( 0x00410000 )
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#define CHR4_A ( 0x41000000 )
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#define CHR1_Z ( 0x0000005A )
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#define CHR2_Z ( 0x00005A00 )
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#define CHR3_Z ( 0x005A0000 )
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#define CHR4_Z ( 0x5A000000 )
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#define CHR1_A2a(s) ( s | 0x00000020 )
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#define CHR2_A2a(s) ( s | 0x00002000 )
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#define CHR3_A2a(s) ( s | 0x00200000 )
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#define CHR4_A2a(s) ( s | 0x20000000 )
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#endif
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#ifdef __WIDECHAR__
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#define TO_LOW_CHR1(s) ( ( (s>=CHR1_A) && (s<=CHR1_Z) ) ? CHR1_A2a(s) : s )
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#define TO_LOW_CHR2(s) ( ( (s>=CHR2_A) && (s<=CHR2_Z) ) ? CHR2_A2a(s) : s )
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#else
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#define TO_LOW_CHR1(s) ( ( (s>=CHR1_A) && (s<=CHR1_Z) ) ? CHR1_A2a(s) : s )
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#define TO_LOW_CHR2(s) ( ( (s>=CHR2_A) && (s<=CHR2_Z) ) ? CHR2_A2a(s) : s )
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#define TO_LOW_CHR3(s) ( ( (s>=CHR3_A) && (s<=CHR3_Z) ) ? CHR3_A2a(s) : s )
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#define TO_LOW_CHR4(s) ( ( (s>=CHR4_A) && (s<=CHR4_Z) ) ? CHR4_A2a(s) : s )
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#endif
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#ifdef __WIDECHAR__
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#define CHR1_a ( 0x00000061 )
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#define CHR2_a ( 0x00610000 )
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#define CHR1_z ( 0x0000007A )
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#define CHR2_z ( 0x007A0000 )
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#define CHR1_a2A(s) ( s & 0x000000DF )
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#define CHR2_a2A(s) ( s & 0x00DF0000 )
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#else
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#define CHR1_a ( 0x00000061 )
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#define CHR2_a ( 0x00006100 )
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#define CHR3_a ( 0x00610000 )
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#define CHR4_a ( 0x61000000 )
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#define CHR1_z ( 0x0000007A )
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#define CHR2_z ( 0x00007A00 )
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#define CHR3_z ( 0x007A0000 )
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#define CHR4_z ( 0x7A000000 )
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#define CHR1_a2A(s) ( s & 0x000000DF )
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#define CHR2_a2A(s) ( s & 0x0000DF00 )
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#define CHR3_a2A(s) ( s & 0x00DF0000 )
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#define CHR4_a2A(s) ( s & 0xDF000000 )
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#endif
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#ifdef __WIDECHAR__
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#define TO_UPR_CHR1(s) ( ( (s>=CHR1_a) && (s<=CHR1_z) ) ? CHR1_a2A(s) : s )
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#define TO_UPR_CHR2(s) ( ( (s>=CHR2_a) && (s<=CHR2_z) ) ? CHR2_a2A(s) : s )
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#else
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#define TO_UPR_CHR1(s) ( ( (s>=CHR1_a) && (s<=CHR1_z) ) ? CHR1_a2A(s) : s )
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#define TO_UPR_CHR2(s) ( ( (s>=CHR2_a) && (s<=CHR2_z) ) ? CHR2_a2A(s) : s )
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#define TO_UPR_CHR3(s) ( ( (s>=CHR3_a) && (s<=CHR3_z) ) ? CHR3_a2A(s) : s )
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#define TO_UPR_CHR4(s) ( ( (s>=CHR4_a) && (s<=CHR4_z) ) ? CHR4_a2A(s) : s )
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#endif
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/*
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* Tweak characters within a word.
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*/
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#ifdef __WIDECHAR__
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#define REVERSE_CHARS(__w) ( (CHR1(__w)<<16) | (CHR2(__w)>>16) )
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#else
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#define REVERSE_CHARS(__w) ( (CHR1(__w)<<24) | (CHR2(__w)<<8) | \
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(CHR3(__w)>>8) | (CHR4(__w)>>24) )
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#endif
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#define SWAP_BYTES(__w) ( (((__w)&BYTE1)<<8) | (((__w)&BYTE2)>>8) | \
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(((__w)&BYTE3)<<8) | (((__w)&BYTE4)>>8) )
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/*
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* Data used by the RISC string functions.
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*/
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struct __F_NAME(__RISC_StrData,__wRISC_StrData) {
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#if USE_INT64
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unsigned_64 byteMasks[8];
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unsigned_64 frontCharsMasks[8];
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unsigned_64 skipCharsMasks[8];
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unsigned_64 _01Mask;
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unsigned_64 _80Mask;
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unsigned_64 subMasks[8];
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#else
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#ifdef __WIDECHAR__
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uint_32 frontCharsMasks[2];
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uint_32 skipCharsMasks[2];
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uint_32 subMasks[2];
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#else
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uint_32 frontCharsMasks[4];
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uint_32 skipCharsMasks[4];
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uint_32 subMasks[4];
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#endif
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#endif
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};
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#ifdef __WIDECHAR__
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extern struct __wRISC_StrData __wRISC_StringData;
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#define RISC_DATA_LOCALREF struct __wRISC_StrData *_riscdata = &__wRISC_StringData
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#else
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extern struct __RISC_StrData __RISC_StringData;
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#define RISC_DATA_LOCALREF struct __RISC_StrData *_riscdata = &__RISC_StringData
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#endif
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/*
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* Prototype functions called by the RISC-oriented string functions.
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*/
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_WCRTLINK extern wchar_t * __simple_wcschr( const wchar_t *str, wint_t ch );
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_WCRTLINK extern int __simple_wcscmp( const wchar_t *s1, const wchar_t *s2 );
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_WCRTLINK extern wchar_t * __simple_wcscpy( wchar_t *dest, const wchar_t *src );
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_WCRTLINK extern int __simple__wcsicmp( const wchar_t *s1, const wchar_t *s2 );
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_WCRTLINK extern size_t __simple_wcslen( const wchar_t *str );
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_WCRTLINK extern wchar_t * __simple__wcslwr( wchar_t *str );
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_WCRTLINK extern int __simple_wcsncmp( const wchar_t *s1, const wchar_t *s2, size_t n );
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_WCRTLINK extern wchar_t * __simple_wcsncpy( wchar_t *dest, const wchar_t *src, size_t n );
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_WCRTLINK extern int __simple__wcsnicmp( const wchar_t *s1, const wchar_t *s2, size_t n );
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_WCRTLINK extern wchar_t * __simple__wcsnset( wchar_t *str, int ch, size_t n );
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_WCRTLINK extern wchar_t * __simple_wcsrchr( const wchar_t *str, wint_t ch );
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_WCRTLINK extern wchar_t * __simple__wcsset( wchar_t *str, wchar_t ch );
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_WCRTLINK extern wchar_t * __simple__wcsupr( wchar_t *str );
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#endif /* #ifdef __RISCSTR__ */
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#endif
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