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63 lines
1.9 KiB
C++
63 lines
1.9 KiB
C++
/**********************************************************************
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* File: bits16.h (Formerly bits8.h)
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* Description: Code for 8 bit field class.
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* Author: Phil Cheatle
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* Created: Thu Oct 17 10:10:05 BST 1991
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*
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* (C) Copyright 1991, Hewlett-Packard Ltd.
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** Licensed under the Apache License, Version 2.0 (the "License");
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** you may not use this file except in compliance with the License.
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** You may obtain a copy of the License at
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** http://www.apache.org/licenses/LICENSE-2.0
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** Unless required by applicable law or agreed to in writing, software
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** distributed under the License is distributed on an "AS IS" BASIS,
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** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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** See the License for the specific language governing permissions and
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** limitations under the License.
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*
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**********************************************************************/
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#ifndef BITS16_H
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#define BITS16_H
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#include "host.h"
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class DLLSYM BITS16
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{
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public:
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uint16_t val;
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BITS16() {
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val = 0;
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} // constructor
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BITS16(uint16_t init) {
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val = init;
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}
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void turn_on_bit( // flip specified bit
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uint8_t bit_num) { // bit to flip 0..7
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val = val | 01 << bit_num;
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}
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void turn_off_bit( // flip specified bit
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uint8_t bit_num) { // bit to flip 0..7
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val = val & ~(01 << bit_num);
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}
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void set_bit( // flip specified bit
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uint8_t bit_num, // bit to flip 0..7
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bool value) { // value to flip to
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if (value)
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val = val | 01 << bit_num;
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else
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val = val & ~(01 << bit_num);
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}
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bool bit( // access bit
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uint8_t bit_num) const { // bit to access
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return (val >> bit_num) & 01;
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}
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};
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#endif
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