102 lines
2.9 KiB
C
102 lines
2.9 KiB
C
/*
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* binary.h
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*
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* Created on: Jan 11, 2013
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* Author: hathach
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*/
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/*
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* Software License Agreement (BSD License)
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* Copyright (c) 2013, hathach (tinyusb.org)
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* This file is part of the tiny usb stack.
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*/
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/** \file
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* \brief TBD
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*
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* \note TBD
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*/
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/** \ingroup TBD
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* \defgroup TBD
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* \brief TBD
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*
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* @{
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*/
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#ifndef _TUSB_BINARY_H_
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#define _TUSB_BINARY_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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/// n-th Bit
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#define BIT_(n) (1 << (n))
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/// set n-th bit of x to 1
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#define BIT_SET_(x, n) ( (x) | BIT_(n) )
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/// clear n-th bit of x
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#define BIT_CLR_(x, n) ( (x) & (~BIT_(n)) )
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#if defined(__GNUC__) && !defined(__CC_ARM)
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#define BIN8(x) (0b##x)
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#define BIN16(b1, b2) (0b##b1##b2)
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#define BIN32(b1, b2, b3, b4) (0b##b1##b2##b3##b4)
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#else
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// internal macro of B8, B16, B32
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#define _B8__(x) (((x&0x0000000FUL)?1:0) \
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+((x&0x000000F0UL)?2:0) \
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+((x&0x00000F00UL)?4:0) \
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+((x&0x0000F000UL)?8:0) \
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+((x&0x000F0000UL)?16:0) \
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+((x&0x00F00000UL)?32:0) \
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+((x&0x0F000000UL)?64:0) \
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+((x&0xF0000000UL)?128:0))
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#define BIN8(d) ((uint8_t) _B8__(0x##d##UL))
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#define BIN16(dmsb,dlsb) (((uint16_t)BIN8(dmsb)<<8) + BIN8(dlsb))
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#define BIN32(dmsb,db2,db3,dlsb) \
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(((uint32_t)BIN8(dmsb)<<24) \
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+ ((uint32_t)BIN8(db2)<<16) \
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+ ((uint32_t)BIN8(db3)<<8) \
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+ BIN8(dlsb))
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* _TUSB_BINARY_H_ */
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/** @} */
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