Retro68/gcc/newlib/libc/stdlib/__ten_mu.c
Wolfgang Thaller ec13cc9ce7 fix newlib
2018-12-29 09:59:36 +01:00

24 lines
422 B
C

/*
* [atw] multiply 64 bit accumulator by 10 and add digit.
* The KA/CA way to do this should be to use
* a 64-bit integer internally and use "adjust" to
* convert it to float at the end of processing.
*/
#include <_ansi.h>
#include "std.h"
int
__ten_mul (double *acc,
int digit)
{
/*
* [atw] Crude, but effective (at least on a KB)...
*/
*acc *= 10;
*acc += digit;
return 0; /* no overflow */
}