/* * This file is part of the UCB release of Plan 9. It is subject to the license * terms in the LICENSE file found in the top-level directory of this * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No * part of the UCB release of Plan 9, including this file, may be copied, * modified, propagated, or distributed except according to the terms contained * in the LICENSE file. */#include "os.h"#include <mp.h>#include "dat.h"// convert a little endian byte array (least significant byte first) to an mpintmpint*letomp(uchar *s, uint n, mpint *b){ int i=0, m = 0; mpdigit x=0; if(b == nil) b = mpnew(0); mpbits(b, 8*n); for(; n > 0; n--){ x |= ((mpdigit)(*s++)) << i; i += 8; if(i == Dbits){ b->p[m++] = x; i = 0; x = 0; } } if(i > 0) b->p[m++] = x; b->top = m; return b;}
/*
* This file is part of the UCB release of Plan 9. It is subject to the license
* terms in the LICENSE file found in the top-level directory of this
* distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No
* part of the UCB release of Plan 9, including this file, may be copied,
* modified, propagated, or distributed except according to the terms contained
* in the LICENSE file.
*/
#include "os.h"
#include <mp.h>
#include "dat.h"
// convert a little endian byte array (least significant byte first) to an mpint
mpint*
letomp(uchar *s, uint n, mpint *b)
{
int i=0, m = 0;
mpdigit x=0;
if(b == nil)
b = mpnew(0);
mpbits(b, 8*n);
for(; n > 0; n--){
x |= ((mpdigit)(*s++)) << i;
i += 8;
if(i == Dbits){
b->p[m++] = x;
i = 0;
x = 0;
}
}
if(i > 0)
b->p[m++] = x;
b->top = m;
return b;
}