FastDivision.h

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#ifndef FASTDIVISION_H
#define FASTDIVISION_H
 
#include <Arduino.h>
 
extern uint16_t divu10(uint16_t n) __attribute__((noinline));  //29 cycles
 
constexpr auto divu8(uint16_t n)
{
  return n >> 3;
}
 
constexpr auto divu4(uint16_t n)
{
  return n >> 2;
}
 
constexpr auto divu2(uint16_t n)
{
  return n >> 1;
}
 
constexpr auto divu1(uint16_t n)
{
  return n;
}
 
extern void divmod10(uint32_t in, uint32_t &div, uint8_t &mod) __attribute__((noinline));
 
#endif /* FASTDIVISION_H */