BCDDecode.cc

//
// Copyright 2018, Jeremy Cooper
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
//
// 1. Redistributions of source code must retain the above copyright
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// 2. Redistributions in binary form must reproduce the above copyright
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#include <stdint.h>

#include "BCDDecode.h"
 
uint8_t
BCDDecode(uint16_t word)
{
  int ten, unit;

  ten  = (word >> 4) & 0xf;
  unit = (word     ) & 0xf;

  if (ten > 9 || unit > 9)
    return 100;
  else
    return ten * 10 + unit;
}