adding GNU dc ("desk calculator")

[unix-history] / gnu / usr.bin / gcc1 / gnulib / longlong / udivdi3.c

#include "longlong.h"

extern void __bdiv ();

long long 
__udivdi3 (u, v)
    long long u, v;
{
 unsigned long a[2][2], b[2], q[2], r[2];
 long_long w;
 long_long uu, vv;

 uu.ll = u;
 vv.ll = v;

 a[HIGH][HIGH] = 0;
 a[HIGH][LOW] = 0;
 a[LOW][HIGH] = uu.s.high;
 a[LOW][LOW] = uu.s.low;
 b[HIGH] = vv.s.high;
 b[LOW] = vv.s.low;

 __bdiv (a, b, q, r, sizeof a, sizeof b);

 w.s.high = q[HIGH];
 w.s.low = q[LOW];
 return w.ll;
}