Revision 4a29a79b8f1cd58a614af82c3bb5d40fdda85d48 authored by g3gg0 on 08 October 2016, 14:22:41 UTC, committed by g3gg0 on 08 October 2016, 14:22:41 UTC
Simplify dng names
imath.c
/* integer math */
#include "dryos.h"
#include "math.h"
int powi(int base, int power)
{
int result = 1;
while (power)
{
if (power & 1)
result *= base;
power >>= 1;
base *= base;
}
return result;
}
int log2i(int x)
{
int result = 0;
while (x >>= 1) result++;
return result;
}
int log10i(int x)
{
int result = 0;
while(x /= 10) result++;
return result;
}
/* todo: integer-only implementation? */
uint32_t log_length(int v)
{
if (!v) return 0;
return (unsigned int)(log2f(v) * 100);
}
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