mirror of
https://github.com/KolibriOS/kolibrios.git
synced 2024-12-17 20:32:35 +03:00
213 lines
9.0 KiB
C
213 lines
9.0 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: Long long integer to ASCII conversion routines.
|
|
*
|
|
****************************************************************************/
|
|
|
|
|
|
#include "variety.h"
|
|
#include "widechar.h"
|
|
#include "watcom.h"
|
|
#include "clibi64.h"
|
|
#include <stdlib.h>
|
|
|
|
extern const char __based(__segname("_CONST")) __Alphabet[];
|
|
|
|
#if defined(__386__) || defined(M_I86)
|
|
unsigned long long __ulldiv( unsigned long long, unsigned _WCNEAR *);
|
|
#if defined(__386__)
|
|
#pragma aux __ulldiv = \
|
|
"xor ecx,ecx" /* set high word of quotient to 0 */ \
|
|
"cmp edx,dword ptr[ebx]" /* if quotient will be >= 4G */ \
|
|
"jb less4g" /* then */ \
|
|
"mov ecx,eax" /* - save low word of dividend */ \
|
|
"mov eax,edx" /* - get high word of dividend */ \
|
|
"xor edx,edx" /* - zero high part */ \
|
|
"div dword ptr[ebx]" /* - divide into high part of dividend */ \
|
|
"xchg eax,ecx" /* - swap high part of quot,low word of dvdnd */ \
|
|
"less4g:" \
|
|
"div dword ptr[ebx]" /* calculate low part */ \
|
|
"mov [ebx],edx" /* store remainder */ \
|
|
parm [eax edx] [ebx] value [eax ecx];
|
|
#elif defined(M_I86) && defined(__BIG_DATA__)
|
|
#pragma aux __ulldiv = \
|
|
"mov di,dx" /* initial dividend = ax:bx:cx:dx(di); save dx */ \
|
|
"test ax,ax" /* less work to do if ax == 0 */ \
|
|
"jz skip1" \
|
|
"mov dx,ax" /* dx:ax = ax:bx */ \
|
|
"mov ax,bx" \
|
|
"xor bx,bx" /* set word 3 of quotient to 0 */ \
|
|
"cmp dx,word ptr ss:[si]" /* if quotient will be >= 64K */ \
|
|
"jb div2" /* then */ \
|
|
"mov bx,ax" /* restore word 2 of dividend */ \
|
|
"mov ax,dx" /* restore word 3 of dividend */ \
|
|
"xor dx,dx" /* - zero high part */ \
|
|
"div word ptr ss:[si]" /* - divide into word 3 of dividend */ \
|
|
"xchg ax,bx" /* - swap word 3,word 2 of dvdnd */ \
|
|
"div2:" \
|
|
"div word ptr ss:[si]" /* - divide into word 2 of dividend */ \
|
|
"xchg ax,cx" /* - swap word 2,word 1 of dvdnd */ \
|
|
"div3:" \
|
|
"div word ptr ss:[si]" /* - divide into word 1 of dividend */ \
|
|
"xchg ax,di" /* - swap word 1,word 0 of dvdnd */ \
|
|
"div4:" \
|
|
"div word ptr ss:[si]" /* calculate low part */ \
|
|
"mov ss:[si],dx" /* store remainder */ \
|
|
"mov dx,ax" /* dx is word 0 */ \
|
|
"mov ax,bx" /* ax:bx:cx:dx = bx:cx:di:ax */ \
|
|
"mov bx,cx" \
|
|
"mov cx,di" \
|
|
"jmp end_div" \
|
|
"skip1:" /* ax==0 */ \
|
|
"test bx,bx" /* even less work to do if bx == 0 too */ \
|
|
"jz skip2" \
|
|
"mov dx,bx" /* dx:ax = bx:cx */ \
|
|
"mov ax,cx" \
|
|
"xor bx,bx" /* set word 3 of quotient to 0 */ \
|
|
"xor cx,cx" /* set word 2 of quotient to 0 */ \
|
|
"cmp dx,word ptr ss:[si]" /* if quotient will be < 64K */ \
|
|
"jb div3" /* then need to do two divisions */ \
|
|
"mov cx,ax" /* restore word 1 of dividend */ \
|
|
"mov ax,dx" /* restore word 2 of dividend */ \
|
|
"xor dx,dx" /* zero high part */ \
|
|
"jmp div2" /* do three divisions*/ \
|
|
"skip2:" /* ax==bx==0 */ \
|
|
"mov dx,cx" /* dx:ax = cx:di */ \
|
|
"mov ax,di" \
|
|
"xor cx,cx" /* set word 2 of quotient to 0 */ \
|
|
"xor di,di" /* set word 1 of quotient to 0 */ \
|
|
"cmp dx,word ptr ss:[si]" /* if quotient will be < 64K */ \
|
|
"jb div4" /* then only one division to do */ \
|
|
"mov di,ax" /* restore word 0 of dividend */ \
|
|
"mov ax,dx" /* restore word 1 of dividend */ \
|
|
"xor dx,dx" /* zero high part */ \
|
|
"jmp div3" /* do two divisions */ \
|
|
"end_div:" \
|
|
parm [ax bx cx dx] [si] modify [di] value [ax bx cx dx];
|
|
#elif defined(M_I86) && defined(__SMALL_DATA__)
|
|
#pragma aux __ulldiv = \
|
|
"mov di,dx" /* initial dividend = ax:bx:cx:dx(di); save dx */ \
|
|
"test ax,ax" /* less work to do if ax == 0 */ \
|
|
"jz skip1" \
|
|
"mov dx,ax" /* dx:ax = ax:bx */ \
|
|
"mov ax,bx" \
|
|
"xor bx,bx" /* set word 3 of quotient to 0 */ \
|
|
"cmp dx,word ptr[si]" /* if quotient will be >= 64K */ \
|
|
"jb div2" /* then */ \
|
|
"mov bx,ax" /* restore word 2 of dividend */ \
|
|
"mov ax,dx" /* restore word 3 of dividend */ \
|
|
"xor dx,dx" /* - zero high part */ \
|
|
"div word ptr[si]" /* - divide into word 3 of dividend */ \
|
|
"xchg ax,bx" /* - swap word 3,word 2 of dvdnd */ \
|
|
"div2:" \
|
|
"div word ptr[si]" /* - divide into word 2 of dividend */ \
|
|
"xchg ax,cx" /* - swap word 2,word 1 of dvdnd */ \
|
|
"div3:" \
|
|
"div word ptr[si]" /* - divide into word 1 of dividend */ \
|
|
"xchg ax,di" /* - swap word 1,word 0 of dvdnd */ \
|
|
"div4:" \
|
|
"div word ptr[si]" /* calculate low part */ \
|
|
"mov [si],dx" /* store remainder */ \
|
|
"mov dx,ax" /* dx is word 0 */ \
|
|
"mov ax,bx" /* ax:bx:cx:dx = bx:cx:di:ax */ \
|
|
"mov bx,cx" \
|
|
"mov cx,di" \
|
|
"jmp end_div" \
|
|
"skip1:" /* dx==0 */ \
|
|
"test bx,bx" /* even less work to do if bx == 0 too */ \
|
|
"jz skip2" \
|
|
"mov dx,bx" /* dx:ax = bx:cx */ \
|
|
"mov ax,cx" \
|
|
"xor bx,bx" /* set word 3 of quotient to 0 */ \
|
|
"xor cx,cx" /* set word 2 of quotient to 0 */ \
|
|
"cmp dx,word ptr[si]" /* if quotient will be < 64K */ \
|
|
"jb div3" /* then need to do two divisions */ \
|
|
"mov cx,ax" /* restore word 1 of dividend */ \
|
|
"mov ax,dx" /* restore word 2 of dividend */ \
|
|
"xor dx,dx" /* zero high part */ \
|
|
"jmp div2" /* do three divisions*/ \
|
|
"skip2:" /* ax==bx==0 */ \
|
|
"mov dx,cx" /* dx:ax = cx:di */ \
|
|
"mov ax,di" \
|
|
"xor cx,cx" /* set word 2 of quotient to 0 */ \
|
|
"xor di,di" /* set word 1 of quotient to 0 */ \
|
|
"cmp dx,word ptr[si]" /* if quotient will be < 64K */ \
|
|
"jb div4" /* then only one division to do */ \
|
|
"mov di,ax" /* restore word 0 of dividend */ \
|
|
"mov ax,dx" /* restore word 1 of dividend */ \
|
|
"xor dx,dx" /* zero high part */ \
|
|
"jmp div3" /* do two divisions */ \
|
|
"end_div:" \
|
|
parm [ax bx cx dx] [si] modify [di] value [ax bx cx dx];
|
|
#endif
|
|
#endif
|
|
|
|
_WCRTLINK CHAR_TYPE *__F_NAME(ulltoa,_ulltow)(
|
|
unsigned long long int value,
|
|
CHAR_TYPE *buffer,
|
|
int radix )
|
|
{
|
|
CHAR_TYPE *p = buffer;
|
|
char *q;
|
|
unsigned rem;
|
|
auto char buf[66]; // only holds ASCII so 'char' is OK
|
|
|
|
buf[0] = '\0';
|
|
q = &buf[1];
|
|
do {
|
|
#if defined(__386__) || defined(M_I86)
|
|
rem = radix;
|
|
value = __ulldiv( value, (unsigned _WCNEAR *) &rem );
|
|
#else
|
|
rem = value % radix;
|
|
value = value / radix;
|
|
#endif
|
|
*q = __Alphabet[ rem ];
|
|
++q;
|
|
} while( value );
|
|
while( *p++ = (CHAR_TYPE)*--q );
|
|
return( buffer );
|
|
}
|
|
|
|
|
|
_WCRTLINK CHAR_TYPE *__F_NAME(lltoa,_lltow)(
|
|
long long int value,
|
|
CHAR_TYPE *buffer,
|
|
int radix )
|
|
{
|
|
register CHAR_TYPE *p = buffer;
|
|
|
|
if( radix == 10 ) {
|
|
if( value < 0 ) {
|
|
*p++ = '-';
|
|
value = -value;
|
|
}
|
|
}
|
|
__F_NAME(ulltoa,_ulltow)( value, p, radix );
|
|
return( buffer );
|
|
}
|