83 lines
2.0 KiB
C
83 lines
2.0 KiB
C
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/* MSPDebug - debugging tool for MSP430 MCUs
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* Copyright (C) 2009-2013 Daniel Beer
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef BYTES_H_
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#define BYTES_H_
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#include <stdint.h>
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/* Read/write big-endian 16-bit */
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static inline uint16_t r16be(const uint8_t *buf)
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{
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return (((uint16_t)buf[0]) << 8) | ((uint16_t)buf[1]);
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}
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static inline void w16be(uint8_t *buf, uint16_t v)
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{
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buf[0] = v >> 8;
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buf[1] = v;
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}
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/* Read/write little-endian 16-bit */
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static inline uint16_t r16le(const uint8_t *buf)
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{
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return (((uint16_t)buf[1]) << 8) | ((uint16_t)buf[0]);
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}
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static inline void w16le(uint8_t *buf, uint16_t v)
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{
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buf[1] = v >> 8;
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buf[0] = v;
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}
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/* Read/write big-endian 32-bit */
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static inline uint32_t r32be(const uint8_t *buf)
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{
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return (((uint32_t)buf[0]) << 24) |
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(((uint32_t)buf[1]) << 16) |
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(((uint32_t)buf[2]) << 8) |
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((uint32_t)buf[3]);
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}
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static inline void w32be(uint8_t *buf, uint32_t v)
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{
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buf[0] = v >> 24;
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buf[1] = v >> 16;
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buf[2] = v >> 8;
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buf[3] = v;
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}
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/* Read/write little-endian 32-bit */
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static inline uint32_t r32le(const uint8_t *buf)
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{
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return (((uint32_t)buf[3]) << 24) |
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(((uint32_t)buf[2]) << 16) |
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(((uint32_t)buf[1]) << 8) |
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((uint32_t)buf[0]);
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}
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static inline void w32le(uint8_t *buf, uint32_t v)
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{
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buf[3] = v >> 24;
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buf[2] = v >> 16;
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buf[1] = v >> 8;
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buf[0] = v;
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}
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#endif
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