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Buelmann: new implementation for ceiling Since my first functional fix in the ceiling computation in commit ceecabfddb57, I noticed that the computation used a linear search, that became rather computational expensive after that commit. The simple question is: why not a binary search? So, this commit implements the binary search. But there is a long story attached to this. Comparing ceiling results from hwOS and this OSTC4 code were very different. Basically, the original OSTC4 algorithm computed the ceiling using the same GFlow to GFhigh slope, in such a way, that the ceiling was in sync with the presented deco stops, where the hwOS code presents a GFhigh based ceiling. This said, it is more logical when the OSTC4 and hwOS code give similar results. This new recursive algorithm gives very similar results for the ceiling compared to hwOS. To be complete here, the Buelmann ceiling is the depth to which you can ascend, so that the leading tissue reaches GFhigh. This also explains why the deepest deco stop is normally deeper than the ceiling (unless one dives with GF like 80/80). The code implemented here is rather straightforward recursion. Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
author Jan Mulder <jlmulder@xs4all.nl>
date Thu, 11 Apr 2019 17:48:48 +0200
parents 5f11787b4f42
children
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///////////////////////////////////////////////////////////////////////////////
/// -*- coding: UTF-8 -*-
///
/// \file   Common/Inc/FirmwareData.h
/// \brief  Firmware Signature (version, makers, date, etc.)
/// \author Heinrichs Weikamp, jDG
/// \date   2017-12-31
///
/// $Id$
///////////////////////////////////////////////////////////////////////////////
/// \par Copyright (c) 2014-2018 Heinrichs Weikamp gmbh
///
///     This program is free software: you can redistribute it and/or modify
///     it under the terms of the GNU General Public License as published by
///     the Free Software Foundation, either version 3 of the License, or
///     (at your option) any later version.
///
///     This program is distributed in the hope that it will be useful,
///     but WITHOUT ANY WARRANTY; without even the implied warranty of
///     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
///     GNU General Public License for more details.
///
///     You should have received a copy of the GNU General Public License
///     along with this program.  If not, see <http://www.gnu.org/licenses/>.
//////////////////////////////////////////////////////////////////////////////

#ifndef FIRMWARE_DATA_H
#define FIRMWARE_DATA_H

#include <stdint.h>

/// @brief Firmware Signature
///
/// Contains
typedef struct {
	uint8_t versionFirst;				///< Major version number
	uint8_t versionSecond;				///< Minor version number
	uint8_t versionThird;
	uint8_t versionBeta;
	uint8_t signature[4];
	uint8_t release_year;
	uint8_t release_month;
	uint8_t release_day;
	uint8_t release_sub;
	char release_info[48];
	char magic[4];
} SFirmwareData;

enum FirmwareMagic {
		FIRMWARE_MAGIC_FIRST     = 0x00, ///< type[0]
		FIRMWARE_MAGIC_SECOND    = 0x00, ///< type[1]
		FIRMWARE_MAGIC_FIRMWARE  = 0xEE,
		FIRMWARE_MAGIC_CPU2_RTE  = 0xE2,
		FIRMWARE_MAGIC_FONT      = 0xF0,
		FIRMWARE_MAGIC_END       = 0xFF  ///< type[2]
};

extern const SFirmwareData font_FirmwareData;
extern const SFirmwareData bootloader_FirmwareData;
extern const SFirmwareData firmware_FirmwareData;

extern const SFirmwareData cpu2_FirmwareData;

#endif /* FIRMWARE_DATA_H */