annotate Small_CPU/Inc/vpm.h @ 261:cc2406b835ff bm-3

Bugfix: do not reset saturation on surfacing Commit 822416168585 introduced a subtle bug. On surfacing, the value of saturation was reset to 0. This is prefect proof why global data is a dangerous thing, and subtle changes can introduce seemingly unrelated bugs. While it would be much better to factor out as much as possible global data, the fix here does not do that. Simply, the bug is fixed without touching the rather complex gTissue_nitrogen_bar/gTissue_helium_bar handling. Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
author Jan Mulder <jlmulder@xs4all.nl>
date Tue, 23 Apr 2019 13:05:20 +0200
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1 /*
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2 * vpm.h
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3 *
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4 * Created: 23.04.2013 11:38:19
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5 * Author: produktion04
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6 */
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9 #ifndef VPM_H
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10 #define VPM_H
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11
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12 #include "data_central.h"
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13 extern long vpm_time_calc_begin;
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14 enum DECOLIST{DECOSTOPS,FUTURESTOPS,BAILOUTSTOPS,NULLZEIT,OFF = -1}; // order is important!!
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15 enum VPM_CALC_STATUS{CALC_END, CALC_BEGIN, CALC_CRITICAL, CALC_FINAL_DECO, CALC_NULLZEIT };
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16 //int calc_crushing_pressure(float *starting_depth, float *ending_depth, float *rate);
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17 //void vpm_check_calc(unsigned short* stoplist);
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18 //void vpm_init(void);
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19 //_Bool vpm_crush(void);
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20
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21 void vpm_reset_variables(void);
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22 _Bool vpm_build_variables_from_file(unsigned long in_sdram_start);
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23 int vpm_store_variables_in_sdram_for_transfer(unsigned long in_sdram_start);
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24 void vpm_calc_crushing_pressure(float starting_ambient_pressure, float ending_ambient_pressure, float rate);
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25 void vpm_deco_plan(unsigned short divetime,unsigned short * divetime_first_stop, float* first_stop_depth);
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27 float schreiner_equation__2(float *initial_inspired_gas_pressure,float *rate_change_insp_gas_pressure,float *interval_time_minutes, const float *gas_time_constant,float *initial_gas_pressure);
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28
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29 int vpm_calc(SLifeData* pINPUT, SVpm* pVPM, SDecoinfo* pDECOINFO);
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30 void vpm_saturation_after_ascent(SLifeData* input);
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31 extern const float helium_time_constant[16];
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32 extern const float nitrogen_time_constant[16];
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33
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34 #endif /* VPM_H */