#include <cstdint>

namespace gdrom_command_packet_format {
  template <int N>
  constexpr void byte_order(uint8_t * buf, const uint32_t n);

  template <>
  constexpr void byte_order<2>(uint8_t * buf, const uint32_t n)
  {
    buf[0] = (n >> 8) & 0xff;
    buf[1] = (n >> 0) & 0xff;
  }

  template <>
  constexpr void byte_order<3>(uint8_t * buf, const uint32_t n)
  {
    buf[0] = (n >> 16) & 0xff;
    buf[1] = (n >> 8) & 0xff;
    buf[2] = (n >> 0) & 0xff;
  }
}