mirror of
https://github.com/stargieg/bacnet-stack
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81 lines
2.9 KiB
C
81 lines
2.9 KiB
C
/**************************************************************************
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*
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* Copyright (C) 2012 Steve Karg <skarg@users.sourceforge.net>
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*********************************************************************/
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#ifndef BITS_H
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#define BITS_H
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/********************************************************************
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* Bit Masks
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*********************************************************************/
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#define BIT(x) (1<<(x))
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#define BIT0 (0x01)
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#define BIT1 (0x02)
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#define BIT2 (0x04)
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#define BIT3 (0x08)
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#define BIT4 (0x10)
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#define BIT5 (0x20)
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#define BIT6 (0x40)
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#define BIT7 (0x80)
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#define BIT8 (0x0100)
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#define BIT9 (0x0200)
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#define BIT10 (0x0400)
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#define BIT11 (0x0800)
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#define BIT12 (0x1000)
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#define BIT13 (0x2000)
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#define BIT14 (0x4000)
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#define BIT15 (0x8000)
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#define BIT16 (0x010000UL)
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#define BIT17 (0x020000UL)
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#define BIT18 (0x040000UL)
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#define BIT19 (0x080000UL)
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#define BIT20 (0x100000UL)
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#define BIT21 (0x200000UL)
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#define BIT22 (0x400000UL)
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#define BIT23 (0x800000UL)
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#define BIT24 (0x01000000UL)
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#define BIT25 (0x02000000UL)
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#define BIT26 (0x04000000UL)
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#define BIT27 (0x08000000UL)
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#define BIT28 (0x10000000UL)
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#define BIT29 (0x20000000UL)
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#define BIT30 (0x40000000UL)
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#define BIT31 (0x80000000UL)
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/* a=register, b=bit number to act upon 0-n */
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#define BIT_SET(a,b) ((a) |= (1<<(b)))
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#define BIT_CLEAR(a,b) ((a) &= ~(1<<(b)))
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#define BIT_FLIP(a,b) ((a) ^= (1<<(b)))
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#define BIT_CHECK(a,b) ((a) & (1<<(b)))
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/* x=target variable, y=mask */
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#define BITMASK_SET(x,y) ((x) |= (y))
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#define BITMASK_CLEAR(x,y) ((x) &= (~(y)))
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#define BITMASK_FLIP(x,y) ((x) ^= (y))
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#define BITMASK_CHECK(x,y) (((x) & (y)) == (y))
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#ifndef _BV
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#define _BV(x) (1<<(x))
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#endif
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#endif
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