forked from KolibriOS/kolibrios
107 lines
3.2 KiB
C
107 lines
3.2 KiB
C
/****************************************************************************
|
|
*
|
|
* Open Watcom Project
|
|
*
|
|
* Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
|
|
*
|
|
* ========================================================================
|
|
*
|
|
* This file contains Original Code and/or Modifications of Original
|
|
* Code as defined in and that are subject to the Sybase Open Watcom
|
|
* Public License version 1.0 (the 'License'). You may not use this file
|
|
* except in compliance with the License. BY USING THIS FILE YOU AGREE TO
|
|
* ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
|
|
* provided with the Original Code and Modifications, and is also
|
|
* available at www.sybase.com/developer/opensource.
|
|
*
|
|
* The Original Code and all software distributed under the License are
|
|
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
|
|
* EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
|
|
* ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
|
|
* NON-INFRINGEMENT. Please see the License for the specific language
|
|
* governing rights and limitations under the License.
|
|
*
|
|
* ========================================================================
|
|
*
|
|
* Description: Implementation of itoa() and utoa().
|
|
*
|
|
****************************************************************************/
|
|
|
|
|
|
#include "variety.h"
|
|
#include "widechar.h"
|
|
#include <stdlib.h>
|
|
|
|
extern const char __based(__segname("_CONST")) __Alphabet[];
|
|
|
|
unsigned __udiv( unsigned, unsigned _WCNEAR * );
|
|
#if defined(__386__)
|
|
#pragma aux __udiv = \
|
|
"xor edx,edx" \
|
|
"div dword ptr [ebx]" \
|
|
"mov [ebx],eax" \
|
|
parm caller [eax] [ebx] \
|
|
modify exact [eax edx] \
|
|
value [edx];
|
|
#elif defined(M_I86) && defined(__BIG_DATA__)
|
|
#pragma aux __udiv = \
|
|
"xor dx,dx" \
|
|
"div word ptr ss:[bx]" \
|
|
"mov ss:[bx],ax" \
|
|
parm caller [ax] [bx] \
|
|
modify exact [ax dx] \
|
|
value [dx];
|
|
#elif defined(M_I86) && defined(__SMALL_DATA__)
|
|
#pragma aux __udiv = \
|
|
"xor dx,dx" \
|
|
"div word ptr [bx]" \
|
|
"mov [bx],ax" \
|
|
parm caller [ax] [bx] \
|
|
modify exact [ax dx] \
|
|
value [dx];
|
|
#endif
|
|
|
|
|
|
_WCRTLINK CHAR_TYPE *__F_NAME(utoa,_utow)( unsigned value, CHAR_TYPE *buffer, int radix )
|
|
{
|
|
CHAR_TYPE *p = buffer;
|
|
char *q;
|
|
unsigned rem;
|
|
unsigned quot;
|
|
char buf[34]; // only holds ASCII so 'char' is OK
|
|
|
|
buf[0] = '\0';
|
|
q = &buf[1];
|
|
do {
|
|
#if defined(_M_IX86) && defined(__WATCOMC__)
|
|
quot = radix;
|
|
rem = __udiv( value, (unsigned _WCNEAR *) " );
|
|
#else
|
|
rem = value % radix;
|
|
quot = value / radix;
|
|
#endif
|
|
*q = __Alphabet[rem];
|
|
++q;
|
|
value = quot;
|
|
} while( value != 0 );
|
|
while( (*p++ = (CHAR_TYPE)*--q) )
|
|
;
|
|
return( buffer );
|
|
}
|
|
|
|
|
|
_WCRTLINK CHAR_TYPE *__F_NAME(itoa,_itow)( int value, CHAR_TYPE *buffer, int radix )
|
|
{
|
|
CHAR_TYPE *p = buffer;
|
|
|
|
if( radix == 10 ) {
|
|
if( value < 0 ) {
|
|
*p++ = '-';
|
|
value = - value;
|
|
}
|
|
}
|
|
__F_NAME(utoa,_utow)( value, p, radix );
|
|
return( buffer );
|
|
}
|