text: /**********************************************************************
   * File:        bits16.h  (Formerly bits8.h)
   * Description: Code for 8 bit field class.
   * Author:					Phil Cheatle
   * Created:					Thu Oct 17 10:10:05 BST 1991
   *
   * (C) Copyright 1991, Hewlett-Packard Ltd.
   ** Licensed under the Apache License, Version 2.0 (the "License");
   ** you may not use this file except in compliance with the License.
   ** You may obtain a copy of the License at
   ** http://www.apache.org/licenses/LICENSE-2.0
   ** Unless required by applicable law or agreed to in writing, software
   ** distributed under the License is distributed on an "AS IS" BASIS,
   ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   ** See the License for the specific language governing permissions and
   ** limitations under the License.
   *
   **********************************************************************/
  
  #ifndef           BITS16_H
  #define           BITS16_H
  
  #include "host.h"
  
  class DLLSYM BITS16
  {
    public:
      uinT16 val;
  
      BITS16() {
        val = 0;
      }                            // constructor
  
      BITS16(               // constructor
             uinT16 init);  // initial val
  
      void turn_on_bit(                  // flip specified bit
                       uinT8 bit_num) {  // bit to flip 0..7
        val = val | 01 << bit_num;
      };
  
      void turn_off_bit(                  // flip specified bit
                        uinT8 bit_num) {  // bit to flip 0..7
        val = val & ~(01 << bit_num);
      };
  
      void set_bit(                // flip specified bit
                   uinT8 bit_num,  // bit to flip 0..7
                   BOOL8 value) {  // value to flip to
        if (value)
          val = val | 01 << bit_num;
        else
          val = val & ~(01 << bit_num);
      };
  
      BOOL8 bit(                        // access bit
                uinT8 bit_num) const {  // bit to access
        return (val >> bit_num) & 01;
      };
  };
  #endif
  