Mercurial > public > mk2
annotate code_part1/OSTC_code_c_part2/p2_deco.c @ 755:6724df41d4f1
CHANGE: Remove CF55 from decolist
TODO: show gas change stops different from decostops
author | heinrichsweikamp |
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date | Tue, 22 Oct 2013 10:16:54 +0200 |
parents | 7e7e98247a8a |
children | 50ed645c251d |
rev | line source |
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116 | 1 // ************************************************************** |
2 // p2_deco.c | |
3 // | |
4 // Created on: 12.05.2009 | |
5 // Author: chsw | |
6 // | |
7 // ************************************************************** | |
8 | |
9 ////////////////////////////////////////////////////////////////////////////// | |
10 // OSTC - diving computer code | |
532 | 11 // Copyright (C) 2011 HeinrichsWeikamp GbR |
116 | 12 // |
13 // This program is free software: you can redistribute it and/or modify | |
14 // it under the terms of the GNU General Public License as published by | |
15 // the Free Software Foundation, either version 3 of the License, or | |
16 // (at your option) any later version. | |
17 // | |
18 // This program is distributed in the hope that it will be useful, | |
19 // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 // GNU General Public License for more details. | |
22 // | |
23 // You should have received a copy of the GNU General Public License | |
24 // along with this program. If not, see <http://www.gnu.org/licenses/>. | |
25 // | |
26 ////////////////////////////////////////////////////////////////////////////// | |
27 | |
28 // ***************************** | |
29 // ** I N T R O D U C T I O N ** | |
30 // ***************************** | |
31 // | |
32 // OSTC | |
33 // | |
34 // code: | |
35 // p2_deco_main_c_v101.c | |
36 // part2 of the OSTC code | |
37 // code with constant O2 partial pressure routines | |
38 // under construction !! | |
39 // | |
40 // summary: | |
41 // decompression routines | |
42 // for the OSTC experimental project | |
43 // written by Christian Weikamp | |
44 // last revision __________ | |
45 // comments added _________ | |
46 // | |
47 // additional files: | |
48 // p2_tables_v100.romdata (other files) | |
49 // 18f4685_ostc_v100.lkr (linker script) | |
50 // | |
51 // history: | |
52 // 01/03/08 v100: first release candidate | |
53 // 03/13/08 v101: start of programming ppO2 code | |
54 // 03/13/25 v101a: backup of interrim version with ppO2 calculation | |
55 // 03/13/25 v101: open circuit gas change during deco | |
56 // 03/13/25 v101: CNS_fraction calculation | |
57 // 03/13/26 v101: optimization of tissue calc routines | |
58 // 07/xx/08 v102a: debug of bottom time routine | |
59 // 09/xx/08 v102d: Gradient Factor Model implemenation | |
60 // 10/10/08 v104: renamed to build v103 for v118 stable | |
171 | 61 // 10/14/08 v104: integration of char_I_depth_last_deco for Gradient Model |
116 | 62 // 03/31/09 v107: integration of FONT Incon24 |
63 // 05/23/10 v109: 5 gas changes & 1 min timer | |
64 // 07/13/10 v110: cns vault added | |
65 // 12/25/10 v110: split in three files (deco.c, main.c, definitions.h) | |
163 | 66 // 2011/01/20: [jDG] Create a common file included in ASM and C code. |
167 | 67 // 2011/01/23: [jDG] Added read_custom_function(). |
203 | 68 // 2011/01/24: [jDG] Make ascenttime an short. No more overflow! |
169
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69 // 2011/01/25: [jDG] Fusion deco array for both models. |
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70 // 2011/01/25: [jDG] Use CF(54) to reverse deco order. |
193 | 71 // 2011/02/11: [jDG] Reworked gradient-factor implementation. |
197 | 72 // 2011/02/13: [jDG] CF55 for additional gas switch delay in decoplan. |
275
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73 // 2011/02/15: [jDG] Fixed inconsistencies introduced by gas switch delays. |
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74 // 2011/03/21: [jDG] Added gas consumption (CF56 & CF57) evaluation for OCR mode. |
293
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75 // 2011/04/10: [jDG] Use timer TMR3 to limit loops in calc_hauptroutine_calc_deco(). |
275
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76 // 2011/04/15: [jDG] Store low_depth in 32bits (w/o rounding), for a better stability. |
293
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77 // 2011/04/25: [jDG] Added 1mn mode for CNS calculation, to allow it for decoplanning. |
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78 // 2011/04/27: [jDG] Fixed char_O_gradient_factor calculation when model uses gradient-factor. |
334
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79 // 2011/05/02: [jDG] Added "Future TTS" function (CF58). |
338 | 80 // 2011/05/17: [jDG] Various cleanups. |
511
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81 // 2011/08/08: [jDG] Computes CNS during deco planning ascent. |
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82 // 2011/11/24: [jDG] Slightly faster and better NDL computation. |
562 | 83 // 2011/12/17: [mH] Remove of the useless debug stuff |
561 | 84 // 2012/02/24: [jDG] Remove missed stop bug. |
562 | 85 // 2012/02/25: [jDG] Looking for a more stable LOW grad factor reference. |
646 | 86 // 2012/09/10: [mH] Fill char_O_deco_time_for_log for logbook write |
87 // 2012/10/05: [jDG] Better deco_gas_volumes accuracy (average depth, switch between stop). | |
697 | 88 // 2013/03/05: [jDG] Should vault low_depth too. |
698 | 89 // 2013/03/05: [jDG] Wrobell remark: ascent_to_first_stop works better with finer steps (2sec). |
711
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90 // 2013/05/08: [jDG] A. Salm remark: NOAA tables for CNS are in ATA, not bar. |
755 | 91 // 2013/10/22: [mH] Remove CF55 stuff |
116 | 92 // |
167 | 93 // TODO: |
94 // + Allow to abort MD2 calculation (have to restart next time). | |
95 // | |
96 // Literature: | |
200 | 97 // Bühlmann, Albert: Tauchmedizin; 4. Auflage [2002]; |
116 | 98 // Schr"oder, Kai & Reith, Steffen; 2000; S"attigungsvorg"ange beim Tauchen, das Modell ZH-L16, Funktionsweise von Tauchcomputern; http://www.achim-und-kai.de/kai/tausim/saett_faq |
99 // Morrison, Stuart; 2000; DIY DECOMPRESSION; http://www.lizardland.co.uk/DIYDeco.html | |
100 // Balthasar, Steffen; Dekompressionstheorie I: Neo Haldane Modelle; http://www.txfreak.de/dekompressionstheorie_1.pdf | |
101 // Baker, Erik C.; Clearing Up The Confusion About "Deep Stops" | |
102 // Baker, Erik C.; Understanding M-values; http://www.txfreak.de/understanding_m-values.pdf | |
167 | 103 // |
104 // | |
116 | 105 |
106 // ********************* | |
107 // ** I N C L U D E S ** | |
108 // ********************* | |
109 #include <math.h> | |
167 | 110 |
192 | 111 // *********************************************** |
112 // ** V A R I A B L E S D E F I N I T I O N S ** | |
113 // *********************************************** | |
114 | |
115 #include "p2_definitions.h" | |
275
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116 #define TEST_MAIN |
509 | 117 #include "../OSTC_code_asm_part1/shared_definitions.h" |
192 | 118 |
200 | 119 // Water vapour partial pressure in the lumb. |
527 | 120 #define ppWater 0.0627 |
317 | 121 #define METER_TO_BAR 0.09985 |
122 #define BAR_TO_METER 10.0150 // (1.0/METER_TO_BAR) | |
200 | 123 |
491
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124 // Surface security factor |
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125 #define SURFACE_DESAT_FACTOR 0.7042 |
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126 |
167 | 127 // ************************* |
128 // ** P R O T O T Y P E S ** | |
129 // ************************* | |
130 | |
131 static void calc_hauptroutine(void); | |
132 static void calc_nullzeit(void); | |
133 | |
192 | 134 static void calc_tissue(PARAMETER unsigned char period); |
258 | 135 static void calc_limit(void); |
192 | 136 |
167 | 137 static void clear_tissue(void); |
138 static void calc_ascenttime(void); | |
139 static void update_startvalues(void); | |
169
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140 static void clear_deco_table(void); |
471 | 141 static unsigned char update_deco_table(void); |
192 | 142 |
143 static void sim_tissue(PARAMETER unsigned char period); | |
144 static void sim_limit(PARAMETER float GF_current); | |
312
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145 static void sim_extra_time(void); |
368 | 146 static void calc_dive_interval(void); |
312
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147 |
167 | 148 static void calc_gradient_factor(void); |
149 static void calc_wo_deco_step_1_min(void); | |
150 | |
151 static void calc_hauptroutine_data_input(void); | |
152 static void calc_hauptroutine_update_tissues(void); | |
153 static void calc_hauptroutine_calc_deco(void); | |
169
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154 static void sim_ascent_to_first_stop(void); |
167 | 155 |
241 | 156 static unsigned char gas_switch_deepest(void); |
157 static void gas_switch_set(void); | |
217 | 158 |
241 | 159 static unsigned char calc_nextdecodepth(void); |
116 | 160 |
200 | 161 //---- Bank 4 parameters ----------------------------------------------------- |
601
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162 #ifndef UNIX |
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163 # pragma udata bank4=0x400 |
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164 #endif |
116 | 165 |
166 static float GF_low; | |
167 static float GF_high; | |
168 static float GF_delta; | |
192 | 169 static float locked_GF_step; // GF_delta / low_depth |
170 | |
171 static unsigned char temp_depth_limit; | |
695 | 172 float low_depth; // Depth of deepest stop |
171 | 173 |
192 | 174 // Simulation context: used to predict ascent. |
695 | 175 unsigned char sim_lead_tissue_no; // Leading compatiment number. |
176 float sim_lead_tissue_limit; // Buhlmann tolerated pressure. | |
116 | 177 |
192 | 178 // Real context: what we are doing now. |
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179 static float calc_lead_tissue_limit; // |
116 | 180 |
338 | 181 static unsigned char internal_deco_time[NUM_STOPS]; |
182 static unsigned char internal_deco_depth[NUM_STOPS]; | |
116 | 183 |
184 static float cns_vault; | |
697 | 185 static float low_depth_vault; |
339 | 186 static float pres_tissue_N2_vault[NUM_COMP]; |
187 static float pres_tissue_He_vault[NUM_COMP]; | |
116 | 188 |
163 | 189 //---- Bank 5 parameters ----------------------------------------------------- |
601
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190 #ifndef UNIX |
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191 # pragma udata bank5=0x500 |
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192 #endif |
163 | 193 |
167 | 194 static unsigned char ci; |
116 | 195 static float pres_respiration; |
196 static float pres_surface; | |
197 static float temp_deco; | |
236 | 198 static float ppN2; |
200 | 199 static float ppHe; |
116 | 200 static float temp_tissue; |
200 | 201 static float N2_ratio; // Breathed gas nitrogen ratio. |
202 static float He_ratio; // Breathed gas helium ratio. | |
203 static float var_N2_a; // Bühlmann a, for current N2 tissue. | |
204 static float var_N2_b; // Bühlmann b, for current N2 tissue. | |
205 static float var_He_a; // Bühlmann a, for current He tissue. | |
206 static float var_He_b; // Bühlmann b, for current He tissue. | |
207 static float var_N2_e; // Exposition, for current N2 tissue. | |
208 static float var_He_e; // Exposition, for current He tissue. | |
509 | 209 static float var_N2_ht; // Half-time for current N2 tissue. |
210 static float var_He_ht; // Half-time for current N2 tissue. | |
116 | 211 |
338 | 212 static float pres_diluent; // new in v.101 |
213 static float const_ppO2; // new in v.101 | |
116 | 214 |
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215 static unsigned char sim_gas_last_depth; // Depth of last used gas, to detected a gas switch. |
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216 static unsigned char sim_gas_last_used; // Number of last used gas, to detected a gas switch. |
203 | 217 static unsigned short sim_dive_mins; // Simulated dive time. |
200 | 218 static float calc_N2_ratio; // Simulated (switched) nitrogen ratio. |
219 static float calc_He_ratio; // Simulated (switched) helium ratio. | |
220 static float CNS_fraction; // new in v.101 | |
221 static float float_saturation_multiplier; // new in v.101 | |
222 static float float_desaturation_multiplier; // new in v.101 | |
338 | 223 static float float_deco_distance; // new in v.101 |
167 | 224 |
338 | 225 static unsigned char deco_gas_change[NUM_GAS]; // new in v.109 |
167 | 226 |
163 | 227 //---- Bank 6 parameters ----------------------------------------------------- |
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228 #ifndef UNIX |
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229 # pragma udata bank6=0x600 |
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230 #endif |
116 | 231 |
339 | 232 float pres_tissue_N2[NUM_COMP]; |
233 float pres_tissue_He[NUM_COMP]; | |
509 | 234 float sim_pres_tissue_N2[NUM_COMP]; // 16 floats = 64 bytes. |
235 float sim_pres_tissue_He[NUM_COMP]; // 16 floats = 64 bytes. | |
116 | 236 |
163 | 237 //---- Bank 7 parameters ----------------------------------------------------- |
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238 #ifndef UNIX |
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239 # pragma udata bank7=0x700 |
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240 #endif |
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241 |
509 | 242 // EMPTY ... |
116 | 243 |
163 | 244 //---- Bank 8 parameters ----------------------------------------------------- |
601
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245 #ifndef UNIX |
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246 # pragma udata bank8=0x800 |
163 | 247 |
601
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248 static char md_pi_subst[256]; |
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249 # define C_STACK md_pi_subst // Overlay C-code data stack here, too. |
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250 |
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251 #endif |
116 | 252 |
163 | 253 //---- Bank 9 parameters ----------------------------------------------------- |
601
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254 #ifndef UNIX |
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255 # pragma udata bank9=0x900 |
116 | 256 |
601
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257 static char md_state[48]; // DONT MOVE : has to be at the beginning of bank 9 for the asm code!!! |
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258 #endif |
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259 |
116 | 260 |
167 | 261 ////////////////////////////////////////////////////////////////////////////// |
262 ////////////////////////////////////////////////////////////////////////////// | |
263 ///////////////////////////// THE LOOKUP TABLES ////////////////////////////// | |
264 ////////////////////////////////////////////////////////////////////////////// | |
265 ////////////////////////////////////////////////////////////////////////////// | |
266 // | |
267 // End of PROM code is 17F00, So push tables on PROM top... | |
268 // | |
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269 #ifndef UNIX |
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270 # pragma romdata buhlmann_tables = 0x017B00 // Needs to be in UPPER bank. |
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271 #endif |
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272 |
167 | 273 #include "p2_tables.romdata" // new table for deco_main_v.101 (var_N2_a modified) |
116 | 274 |
167 | 275 // Magic table to compute the MD2 HASH |
276 // | |
601
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277 #ifndef UNIX |
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278 # pragma romdata hash_tables = 0x017E00 // Address fixed by ASM access... |
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279 rom const rom unsigned short md_pi[] = |
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280 { |
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281 0x292E, 0x43C9, 0xA2D8, 0x7C01, 0x3D36, 0x54A1, 0xECF0, 0x0613 |
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282 , 0x62A7, 0x05F3, 0xC0C7, 0x738C, 0x9893, 0x2BD9, 0xBC4C, 0x82CA |
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283 , 0x1E9B, 0x573C, 0xFDD4, 0xE016, 0x6742, 0x6F18, 0x8A17, 0xE512 |
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284 , 0xBE4E, 0xC4D6, 0xDA9E, 0xDE49, 0xA0FB, 0xF58E, 0xBB2F, 0xEE7A |
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285 , 0xA968, 0x7991, 0x15B2, 0x073F, 0x94C2, 0x1089, 0x0B22, 0x5F21 |
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286 , 0x807F, 0x5D9A, 0x5A90, 0x3227, 0x353E, 0xCCE7, 0xBFF7, 0x9703 |
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287 , 0xFF19, 0x30B3, 0x48A5, 0xB5D1, 0xD75E, 0x922A, 0xAC56, 0xAAC6 |
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288 , 0x4FB8, 0x38D2, 0x96A4, 0x7DB6, 0x76FC, 0x6BE2, 0x9C74, 0x04F1 |
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289 , 0x459D, 0x7059, 0x6471, 0x8720, 0x865B, 0xCF65, 0xE62D, 0xA802 |
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290 , 0x1B60, 0x25AD, 0xAEB0, 0xB9F6, 0x1C46, 0x6169, 0x3440, 0x7E0F |
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291 , 0x5547, 0xA323, 0xDD51, 0xAF3A, 0xC35C, 0xF9CE, 0xBAC5, 0xEA26 |
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292 , 0x2C53, 0x0D6E, 0x8528, 0x8409, 0xD3DF, 0xCDF4, 0x4181, 0x4D52 |
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293 , 0x6ADC, 0x37C8, 0x6CC1, 0xABFA, 0x24E1, 0x7B08, 0x0CBD, 0xB14A |
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294 , 0x7888, 0x958B, 0xE363, 0xE86D, 0xE9CB, 0xD5FE, 0x3B00, 0x1D39 |
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295 , 0xF2EF, 0xB70E, 0x6658, 0xD0E4, 0xA677, 0x72F8, 0xEB75, 0x4B0A |
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296 , 0x3144, 0x50B4, 0x8FED, 0x1F1A, 0xDB99, 0x8D33, 0x9F11, 0x8314 |
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297 }; |
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298 #endif |
116 | 299 |
167 | 300 ////////////////////////////////////////////////////////////////////////////// |
301 ////////////////////////////////////////////////////////////////////////////// | |
302 ////////////////////////////// THE SUBROUTINES /////////////////////////////// | |
303 ////////////////////////////////////////////////////////////////////////////// | |
304 ////////////////////////////////////////////////////////////////////////////// | |
305 // | |
116 | 306 // all new in v.102 |
307 // moved from 0x0D000 to 0x0C000 in v.108 | |
601
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308 #ifndef UNIX |
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309 # pragma code p2_deco = 0x0C000 |
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310 #endif |
116 | 311 |
167 | 312 ////////////////////////////////////////////////////////////////////////////// |
313 ////////////////////////////////////////////////////////////////////////////// | |
314 /////////////////////// U T I L I T I E S ///////////////////////////////// | |
315 ////////////////////////////////////////////////////////////////////////////// | |
316 ////////////////////////////////////////////////////////////////////////////// | |
317 | |
235 | 318 ////////////////////////////////////////////////////////////////////////////// |
257
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319 // Bump to blue-screen when an assert is wrong |
235 | 320 #ifdef __DEBUG |
321 void assert_failed(PARAMETER short int line) | |
322 { | |
681 | 323 extern void DISP_resetdebugger(void); |
235 | 324 extern unsigned short temp10; |
325 | |
257
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326 temp10 = line; // Show source line number as stack depth. |
681 | 327 DISP_resetdebugger(); |
235 | 328 } |
329 #endif | |
257
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330 |
235 | 331 ////////////////////////////////////////////////////////////////////////////// |
332 // When calling C code from ASM context, the data stack pointer and | |
333 // frames should be reset. Bank8 is used by stack, when not doing hashing. | |
334 | |
335 #ifdef CROSS_COMPILE | |
336 # define RESET_C_STACK | |
337 #else | |
338 # ifdef __DEBUG | |
339 # define RESET_C_STACK fillDataStack(); | |
340 void fillDataStack(void) | |
341 { | |
342 _asm | |
343 LFSR 1,C_STACK | |
344 MOVLW 0xCC | |
345 loop: MOVWF POSTINC1,0 | |
346 TSTFSZ FSR1L,0 | |
347 BRA loop | |
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348 |
235 | 349 LFSR 1,C_STACK |
350 LFSR 2,C_STACK | |
351 _endasm | |
352 } | |
353 # else | |
354 # define RESET_C_STACK \ | |
355 _asm \ | |
356 LFSR 1, C_STACK \ | |
357 LFSR 2, C_STACK \ | |
358 _endasm | |
359 # endif | |
360 #endif | |
361 | |
362 ////////////////////////////////////////////////////////////////////////////// | |
257
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363 // Read CF values from the C code. |
235 | 364 |
488 | 365 #ifdef CROSS_COMPILE |
366 // Full description of the OSTC EEPROM map, including CF values. | |
367 # include "OSTC_eeprom.h" | |
368 #endif | |
369 | |
203 | 370 static short read_custom_function(PARAMETER unsigned char cf) |
167 | 371 { |
184 | 372 #ifdef CROSS_COMPILE |
743 | 373 return READ_CF_MACRO(cf); |
184 | 374 #else |
167 | 375 extern unsigned char hi, lo; |
376 extern void getcustom15(); | |
377 _asm | |
378 movff cf,WREG | |
379 call getcustom15,0 | |
380 movff lo,PRODL | |
381 movff hi,PRODH | |
382 _endasm | |
184 | 383 #endif |
167 | 384 } |
385 | |
386 ////////////////////////////////////////////////////////////////////////////// | |
257
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387 // Fast subroutine to read RTC timer 3. |
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388 // Note: result is in 1/32 of msecs. |
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389 static unsigned short tmr3(void) |
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390 { |
261 | 391 #ifndef CROSS_COMPILE |
257
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392 _asm |
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393 movff 0xfb2,PRODL // TMR3L |
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394 movff 0xfb3,PRODH // TMR3H |
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395 _endasm // result in PRODH:PRODL. |
261 | 396 #else |
397 return 0; | |
398 #endif | |
257
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399 } |
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400 |
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401 ////////////////////////////////////////////////////////////////////////////// |
258 | 402 // read buhlmann tables A and B for compatriment ci |
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403 // |
258 | 404 static void read_buhlmann_coefficients(void) |
165 | 405 { |
184 | 406 #ifndef CROSS_COMPILE |
167 | 407 // Note: we don't use far rom pointer, because the |
338 | 408 // 24 bits is too complex, hence we have to set |
167 | 409 // the UPPER page ourself... |
410 // --> Set zero if tables are moved to lower pages ! | |
411 _asm | |
412 movlw 1 | |
413 movwf TBLPTRU,0 | |
414 _endasm | |
184 | 415 #endif |
258 | 416 |
564 | 417 assert( ci < NUM_COMP ); |
338 | 418 |
419 // Use an interleaved array (AoS) to access coefficients with a | |
420 // single addressing. | |
421 { | |
422 overlay rom const float* ptr = &buhlmann_ab[4*ci]; | |
423 var_N2_a = *ptr++; | |
424 var_N2_b = *ptr++; | |
425 var_He_a = *ptr++; | |
426 var_He_b = *ptr++; | |
427 } | |
258 | 428 } |
429 | |
430 ////////////////////////////////////////////////////////////////////////////// | |
431 // read buhlmann tables for compatriment ci | |
432 // If period == 0 : 2sec interval | |
433 // 1 : 1 min interval | |
434 // 2 : 10 min interval. | |
435 static void read_buhlmann_times(PARAMETER char period) | |
436 { | |
437 #ifndef CROSS_COMPILE | |
438 // Note: we don't use far rom pointer, because the | |
439 // 24 bits is to complex, hence we have to set | |
440 // the UPPER page ourself... | |
441 // --> Set zero if tables are moved to lower pages ! | |
442 _asm | |
443 movlw 1 | |
444 movwf TBLPTRU,0 | |
445 _endasm | |
446 #endif | |
338 | 447 |
564 | 448 assert( ci < NUM_COMP ); |
258 | 449 |
165 | 450 // Integration intervals. |
167 | 451 switch(period) |
165 | 452 { |
453 case 0: //---- 2 sec ----------------------------------------------------- | |
338 | 454 { |
455 overlay rom const float* ptr = &e2secs[2*ci]; | |
456 var_N2_e = *ptr++; | |
457 var_He_e = *ptr++; | |
458 } | |
165 | 459 break; |
460 | |
461 case 1: //---- 1 min ----------------------------------------------------- | |
338 | 462 { |
463 overlay rom const float* ptr = &e1min[2*ci]; | |
464 var_N2_e = *ptr++; | |
465 var_He_e = *ptr++; | |
466 } | |
165 | 467 break; |
468 | |
469 case 2: //---- 10 min ---------------------------------------------------- | |
338 | 470 { |
471 overlay rom const float* ptr = &e10min[2*ci]; | |
472 var_N2_e = *ptr++; | |
473 var_He_e = *ptr++; | |
474 } | |
165 | 475 break; |
197 | 476 |
477 default: | |
527 | 478 assert(0); // Never go there... |
165 | 479 } |
480 } | |
481 | |
482 ////////////////////////////////////////////////////////////////////////////// | |
509 | 483 // read buhlmann tables for compatriment ci |
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484 // |
509 | 485 static void read_buhlmann_ht(void) |
486 { | |
487 | |
488 #ifndef CROSS_COMPILE | |
489 // Note: we don't use far rom pointer, because the | |
490 // 24 bits is to complex, hence we have to set | |
491 // the UPPER page ourself... | |
492 // --> Set zero if tables are moved to lower pages ! | |
493 _asm | |
494 movlw 1 | |
495 movwf TBLPTRU,0 | |
496 _endasm | |
497 #endif | |
498 | |
564 | 499 assert( ci < NUM_COMP ); |
509 | 500 { |
501 overlay rom const float* ptr = &buhlmann_ht[2*ci]; | |
502 var_N2_ht = *ptr++; | |
503 var_He_ht = *ptr++; | |
711
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504 } |
509 | 505 |
506 assert( 4.0 <= var_N2_ht && var_N2_ht <= 635.0 ); | |
507 assert( 1.5099 <= var_He_ht && var_He_ht <= 240.03 ); | |
508 } | |
509 | |
510 ////////////////////////////////////////////////////////////////////////////// | |
340
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511 // calc_nextdecodepth |
165 | 512 // |
116 | 513 // new in v.102 |
165 | 514 // |
116 | 515 // INPUT, changing during dive: |
509 | 516 // temp_deco |
192 | 517 // low_depth |
167 | 518 // |
116 | 519 // INPUT, fixed during dive: |
167 | 520 // pres_surface |
521 // GF_delta | |
522 // GF_high | |
523 // GF_low | |
171 | 524 // char_I_depth_last_deco |
167 | 525 // float_deco_distance |
526 // | |
241 | 527 // RETURN TRUE iff a stop is needed. |
528 // | |
116 | 529 // OUTPUT |
171 | 530 // locked_GF_step |
167 | 531 // temp_depth_limt |
192 | 532 // low_depth |
167 | 533 // |
241 | 534 static unsigned char calc_nextdecodepth(void) |
167 | 535 { |
241 | 536 //--- Max ascent speed --------------------------------------------------- |
537 // Recompute leading gas limit, at current depth: | |
317 | 538 overlay float depth = (temp_deco - pres_surface) * BAR_TO_METER; |
241 | 539 |
540 // At most, ascent 1 minute, at 10m/min == 10.0 m. | |
302 | 541 overlay float min_depth = (depth > 10.0) ? (depth - 10.0) : 0.0; |
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542 |
241 | 543 // Do we need to stop at current depth ? |
544 overlay unsigned char need_stop = 0; | |
545 | |
546 assert( depth >= -0.2 ); // Allow for 200mbar of weather change. | |
547 | |
212 | 548 //---- ZH-L16 + GRADIENT FACTOR model ------------------------------------ |
711
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549 if( char_I_deco_model != 0 ) |
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550 { |
562 | 551 overlay unsigned char first_stop = 0; |
552 overlay float p; | |
553 | |
567 | 554 sim_limit( GF_low ); |
562 | 555 p = sim_lead_tissue_limit - pres_surface; |
695 | 556 p *= BAR_TO_METER; |
562 | 557 if( p <= 0.0f ) |
558 goto no_deco_stop; // We can surface directly... | |
512
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559 |
695 | 560 // Store the deepest point needing a deco stop as the LOW reference for GF. |
561 // NOTE: following stops will be validated using this LOW-HIGH gf scale, | |
562 // so if we want to keep coherency, we should not validate this stop | |
563 // yet, but apply the search to it, as for all the following stops afterward. | |
564 if( p > low_depth ) | |
565 { | |
566 low_depth = p; | |
567 locked_GF_step = GF_delta / low_depth; | |
568 } | |
569 | |
562 | 570 if( p < min_depth ) |
571 goto no_deco_stop; // First stop is higher than 1' ascent. | |
275
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572 |
695 | 573 // Round to multiple of 3m. |
574 first_stop = 3 * (short)(0.9995f + p*0.333333f); | |
562 | 575 assert( first_stop < 128 ); |
576 | |
577 // Apply correction for the shallowest stop. | |
578 if( first_stop == 3 ) // new in v104 | |
579 first_stop = char_I_depth_last_deco; // Use last 3m..6m instead. | |
171 | 580 |
562 | 581 // We have a stop candidate. |
582 // But maybe ascending to the next stop will diminish the constraint, | |
583 // because the GF might decrease more than the preassure gradient... | |
584 while(first_stop > 0) | |
585 { | |
586 overlay unsigned char next_stop; // Next depth (0..90m) | |
171 | 587 |
562 | 588 // Check max speed, or reaching surface. |
589 if( first_stop <= min_depth ) | |
590 goto no_deco_stop; | |
171 | 591 |
562 | 592 if( first_stop <= char_I_depth_last_deco ) // new in v104 |
593 next_stop = 0; | |
594 else if( first_stop == 6 ) | |
595 next_stop = char_I_depth_last_deco; | |
596 else | |
597 next_stop = first_stop - 3; // Index of next (upper) stop. | |
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598 |
562 | 599 // Total preassure at the new stop candidate: |
695 | 600 p = next_stop * METER_TO_BAR |
711
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601 + pres_surface; |
167 | 602 |
695 | 603 // Recompute limit for this new stop: |
604 if( !low_depth || next_stop > low_depth ) | |
605 sim_limit( GF_low ); | |
606 else | |
607 sim_limit( GF_high - next_stop * locked_GF_step ); | |
192 | 608 |
695 | 609 // Check upper limit (lowest ambiant pressure tolerated): |
610 if( sim_lead_tissue_limit >= p ) | |
611 goto deco_stop_found; // Ascent to next_stop forbiden. | |
562 | 612 |
613 // Else, validate that stop and loop... | |
614 first_stop = next_stop; | |
615 } | |
171 | 616 |
562 | 617 no_deco_stop: |
711
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618 temp_depth_limit = min_depth; |
562 | 619 goto done; |
212 | 620 |
695 | 621 deco_stop_found: |
562 | 622 // next stop is the last validated depth found, aka first_stop |
623 need_stop = 1; // Hit. | |
624 temp_depth_limit = first_stop; // Stop depth, in meter. | |
625 | |
626 done: | |
627 ; | |
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628 } |
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629 else //---- ZH-L16 model ------------------------------------------------- |
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630 { |
192 | 631 overlay float pres_gradient; |
632 | |
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633 // Original model |
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634 // optimized in v.101 |
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635 // char_I_depth_last_deco included in v.101 |
116 | 636 |
192 | 637 // Compute sim_lead_tissue_limit too, but just once. |
638 sim_limit(1.0); | |
639 | |
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640 pres_gradient = sim_lead_tissue_limit - pres_surface; |
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641 if (pres_gradient >= 0) |
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642 { |
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643 pres_gradient *= BAR_TO_METER/3; // Bar --> stop number; |
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644 temp_depth_limit = 3 * (short) (pres_gradient + 0.99); // --> metre : depth for deco |
241 | 645 need_stop = 1; // Hit. |
646 | |
647 // Implement last stop at 4m/5m/6m... | |
711
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648 if( temp_depth_limit == 3 ) |
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649 temp_depth_limit = char_I_depth_last_deco; |
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650 } |
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651 else |
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652 temp_depth_limit = 0; |
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653 } |
212 | 654 |
217 | 655 //---- Check gas change -------------------------------------------------- |
241 | 656 need_stop |= gas_switch_deepest(); // Update temp_depth_limit if there is a change, |
657 | |
658 return need_stop; | |
167 | 659 } |
116 | 660 |
167 | 661 ////////////////////////////////////////////////////////////////////////////// |
169
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662 // copy_deco_table |
167 | 663 // |
169
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664 // Buffer the stops, once computed, so we can continue to display them |
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665 // while computing the next set. |
167 | 666 // |
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667 static void copy_deco_table(void) |
116 | 668 { |
169
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669 // Copy depth of the first (deepest) stop, because when reversing |
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670 // order, it will be hard to find... |
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671 char_O_first_deco_depth = internal_deco_depth[0] & 0x7F; |
169
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672 char_O_first_deco_time = internal_deco_time [0]; |
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673 |
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674 if( read_custom_function(54) & 1 ) //---- Should we reverse table ? ------ |
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675 { |
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676 overlay unsigned char x, y; |
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677 |
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678 //---- First: search the first non-null depth |
339 | 679 for(x=(NUM_STOPS-1); x != 0; --x) |
169
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680 if( internal_deco_depth[x] != 0 ) break; |
116 | 681 |
169
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682 //---- Second: copy to output table (in reverse order) |
338 | 683 for(y=0; y<NUM_STOPS; y++, --x) |
169
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684 { |
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685 char_O_deco_depth[y] = internal_deco_depth[x]; |
633
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686 char_O_deco_time_for_log[y] = internal_deco_time [x]; |
169
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687 char_O_deco_time [y] = internal_deco_time [x]; |
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688 |
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689 // Stop only once the last transfer is done. |
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690 if( x == 0 ) break; |
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691 } |
116 | 692 |
169
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693 //---- Third: fill table end with null |
339 | 694 for(y++; y<NUM_STOPS; y++) |
169
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695 { |
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696 char_O_deco_time [y] = 0; |
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697 char_O_deco_depth[y] = 0; |
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698 char_O_deco_time_for_log[y] = 0; |
169
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699 } |
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700 } |
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701 else //---- Straight copy ------------------------------------------------ |
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702 { |
630
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703 overlay unsigned char x, y; |
167 | 704 |
339 | 705 for(x=0; x<NUM_STOPS; x++) |
169
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706 { |
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707 char_O_deco_depth[x] = internal_deco_depth[x]; |
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708 char_O_deco_time [x] = internal_deco_time [x]; |
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709 } |
630
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710 |
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711 //Now fill the char_O_deco_time_for_log array |
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712 //---- First: search the first non-null depth |
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713 for(x=(NUM_STOPS-1); x != 0; --x) |
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714 if( internal_deco_depth[x] != 0 ) break; |
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715 |
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716 //---- Second: copy to output table (in reverse order) |
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717 for(y=0; y<NUM_STOPS; y++, --x) |
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718 { |
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719 char_O_deco_time_for_log[y] = internal_deco_time [x]; |
630
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720 |
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721 // Stop only once the last transfer is done. |
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722 if( x == 0 ) break; |
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723 } |
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724 |
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725 //---- Third: fill table end with null |
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726 for(y++; y<NUM_STOPS; y++) |
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727 { |
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728 char_O_deco_time_for_log [y] = 0; |
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729 } |
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730 |
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731 } |
167 | 732 } |
116 | 733 |
167 | 734 ////////////////////////////////////////////////////////////////////////////// |
116 | 735 // temp_tissue_safety // |
167 | 736 // |
116 | 737 // outsourced in v.102 |
167 | 738 // |
739 // Apply safety factors for brand ZH-L16 model. | |
740 // | |
741 static void temp_tissue_safety(void) | |
116 | 742 { |
197 | 743 assert( 0.0 < float_desaturation_multiplier && float_desaturation_multiplier <= 1.0 ); |
744 assert( 1.0 <= float_saturation_multiplier && float_saturation_multiplier <= 2.0 ); | |
745 | |
711
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746 if( char_I_deco_model == 0 ) |
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747 { |
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748 if( temp_tissue < 0.0 ) |
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749 temp_tissue *= float_desaturation_multiplier; |
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750 else |
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751 temp_tissue *= float_saturation_multiplier; |
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752 } |
167 | 753 } |
116 | 754 |
167 | 755 ////////////////////////////////////////////////////////////////////////////// |
756 ////////////////////////////////////////////////////////////////////////////// | |
116 | 757 // ** THE JUMP-IN CODE ** |
758 // ** for the asm code ** | |
167 | 759 ////////////////////////////////////////////////////////////////////////////// |
760 ////////////////////////////////////////////////////////////////////////////// | |
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761 |
167 | 762 ////////////////////////////////////////////////////////////////////////////// |
169
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763 // Called every 2 seconds during diving. |
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764 // update tissues every time. |
184 | 765 // |
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766 // Every 6 seconds (or slower when TTS > 16): |
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767 // - update deco table (char_O_deco_time/depth) with new values. |
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768 // - update ascent time, |
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769 // - set status to zero (so we can check there is new results). |
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770 // |
116 | 771 void deco_calc_hauptroutine(void) |
772 { | |
122
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773 RESET_C_STACK |
116 | 774 calc_hauptroutine(); |
775 int_O_desaturation_time = 65535; | |
776 } | |
777 | |
167 | 778 ////////////////////////////////////////////////////////////////////////////// |
184 | 779 // Reset decompression model: |
780 // + Set all tissues to equilibrium with Air at ambient pressure. | |
781 // + Reset last stop to 0m | |
782 // + Reset all model output. | |
116 | 783 void deco_clear_tissue(void) |
784 { | |
122
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785 RESET_C_STACK |
116 | 786 clear_tissue(); |
787 } | |
788 | |
167 | 789 ////////////////////////////////////////////////////////////////////////////// |
278 | 790 // Called every 1 min during decoplanning. |
791 // Update tissues for 1 min. | |
792 // | |
793 void deco_calc_tissue(void) | |
794 { | |
795 RESET_C_STACK | |
796 calc_hauptroutine_update_tissues(); | |
711
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797 } |
278 | 798 |
799 ////////////////////////////////////////////////////////////////////////////// | |
167 | 800 |
116 | 801 void deco_calc_wo_deco_step_1_min(void) |
802 { | |
122
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803 RESET_C_STACK |
116 | 804 calc_wo_deco_step_1_min(); |
805 deco_calc_desaturation_time(); | |
806 } | |
807 | |
167 | 808 ////////////////////////////////////////////////////////////////////////////// |
809 | |
368 | 810 void deco_calc_dive_interval(void) |
811 { | |
812 RESET_C_STACK | |
813 calc_dive_interval(); | |
814 } | |
815 | |
241 | 816 ////////////////////////////////////////////////////////////////////////////// |
817 // Find current gas in the list (if any). | |
711
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818 // |
513 | 819 // Input: char_I_current_gas = 1..6 |
241 | 820 // |
513 | 821 // Output: sim_gas_last_depth = 0..5, temp_depth_limit. |
241 | 822 // |
823 static void gas_switch_find_current(void) | |
824 { | |
513 | 825 assert( 0 < char_I_current_gas && char_I_current_gas <= (NUM_GAS+1) ); |
247
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826 |
388 | 827 if( char_I_current_gas <= NUM_GAS ) // Gas1..Gas5 |
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828 { |
388 | 829 sim_gas_last_used = char_I_current_gas; |
830 | |
831 // Note: if current is first gas, we must find it, but not set | |
832 // last depth change to surface. | |
833 if( char_I_deco_gas_change[sim_gas_last_used-1] ) | |
834 sim_gas_last_depth = char_I_deco_gas_change[sim_gas_last_used-1]; | |
241 | 835 } |
388 | 836 else |
837 sim_gas_last_used = 0; // Gas 6 = manual set | |
241 | 838 } |
839 | |
167 | 840 ////////////////////////////////////////////////////////////////////////////// |
217 | 841 // Find deepest available gas. |
711
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842 // |
241 | 843 // Input: temp_depth_limit, |
844 // deco_gas_change[] | |
845 // sim_gas_delay, sim_gas_depth_used, sim_dive_mins. | |
212 | 846 // |
241 | 847 // RETURNS TRUE if a stop is needed for gas switch. |
848 // | |
849 // Output: temp_depth_limit, sim_gas_delay, sim_gas_depth_used IFF the is a switch. | |
212 | 850 // |
241 | 851 // NOTE: might be called from bottom (when sim_gas_delay and sim_gas_depth_used |
852 // are null), or during the ascent to make sure we are not passing a | |
853 // stop (in which case both can be already set). | |
854 // | |
855 static unsigned char gas_switch_deepest(void) | |
201 | 856 { |
241 | 857 overlay unsigned char switch_deco = 0, switch_last = 0; |
201 | 858 |
859 if (char_I_const_ppO2 == 0) | |
860 { | |
225 | 861 overlay unsigned char j; |
862 | |
241 | 863 // Loop over all enabled gas, to find the deepest one, |
340
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864 // above last used gas, but below temp_depth_limit. |
338 | 865 for(j=0; j<NUM_GAS; ++j) |
225 | 866 { |
241 | 867 // Gas not (yet) allowed ? Skip ! |
868 if( temp_depth_limit > deco_gas_change[j] ) | |
869 continue; | |
870 | |
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871 // Gas deeper (or equal) than the current one ? Skip ! |
241 | 872 if( sim_gas_last_depth && deco_gas_change[j] >= sim_gas_last_depth ) |
873 continue; | |
874 | |
875 // First, or deeper ? | |
247
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876 if( switch_deco < deco_gas_change[j] ) |
241 | 877 { |
878 switch_deco = deco_gas_change[j]; | |
388 | 879 switch_last = j+1; // 1..5 |
241 | 880 } |
225 | 881 } |
201 | 882 } |
883 | |
203 | 884 // If there is a better gas available |
241 | 885 if( switch_deco ) |
201 | 886 { |
241 | 887 assert( !sim_gas_last_depth || sim_gas_last_depth > switch_deco ); |
201 | 888 |
241 | 889 sim_gas_last_depth = switch_deco; |
890 sim_gas_last_used = switch_last; | |
755 | 891 return 0; |
217 | 892 } |
241 | 893 return 0; |
217 | 894 } |
895 | |
896 ////////////////////////////////////////////////////////////////////////////// | |
897 // Calculate gas switches | |
711
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898 // |
217 | 899 // |
900 // Input: N2_ratio, He_ratio. | |
901 // sim_gas_last_used | |
902 // | |
903 // Output: calc_N2_ratio, calc_He_ratio | |
904 // | |
241 | 905 static void gas_switch_set(void) |
217 | 906 { |
564 | 907 assert( sim_gas_last_used <= NUM_GAS ); |
217 | 908 |
388 | 909 if( sim_gas_last_used == 0 ) // Gas6 = manualy set gas. |
224 | 910 { |
911 calc_N2_ratio = N2_ratio; | |
711
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912 calc_He_ratio = He_ratio; |
224 | 913 } |
914 else | |
915 { | |
916 calc_N2_ratio = char_I_deco_N2_ratio[sim_gas_last_used-1] * 0.01; | |
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917 calc_He_ratio = char_I_deco_He_ratio[sim_gas_last_used-1] * 0.01; |
217 | 918 } |
201 | 919 |
920 assert( 0.0 <= calc_N2_ratio && calc_N2_ratio <= 0.95 ); | |
921 assert( 0.0 <= calc_He_ratio && calc_He_ratio <= 0.95 ); | |
922 assert( (calc_N2_ratio + calc_He_ratio) <= 1.00 ); | |
923 } | |
924 | |
925 ////////////////////////////////////////////////////////////////////////////// | |
926 // | |
212 | 927 // Input: calc_N2_ratio, calc_He_ratio : simulated gas mix. |
509 | 928 // temp_deco : simulated respiration pressure |
276 | 929 // float_deco_distance : security factor. |
310
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930 // Water-vapor pressure inside limbs (ppWater). |
212 | 931 // |
236 | 932 // Output: ppN2, ppHe. |
212 | 933 // |
934 static void sim_alveolar_presures(void) | |
201 | 935 { |
212 | 936 overlay float deco_diluent = temp_deco; // new in v.101 |
937 | |
276 | 938 // Take deco offset into account, but not at surface. |
939 // Note: this should be done on ambiant pressure, hence before | |
940 // computing the diluant partial pressure... | |
941 if( deco_diluent > pres_surface ) | |
942 deco_diluent += float_deco_distance; | |
943 | |
212 | 944 //---- CCR mode : deco gas switch ? -------------------------------------- |
276 | 945 if( char_I_const_ppO2 != 0 ) |
711
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|
946 { |
276 | 947 // In CCR mode, use calc_XX_ratio instead of XX_ratio. |
948 // Note: PPO2 and ratios are known outside the lumbs, so there is no | |
310
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|
949 // ppWater in the equations below: |
321 | 950 deco_diluent -= const_ppO2; |
276 | 951 deco_diluent /= calc_N2_ratio + calc_He_ratio; |
212 | 952 |
953 if (deco_diluent > temp_deco) | |
711
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|
954 deco_diluent = temp_deco; |
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|
955 } |
201 | 956 |
310
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|
957 if( deco_diluent > ppWater ) |
201 | 958 { |
310
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959 ppN2 = calc_N2_ratio * (deco_diluent - ppWater); |
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960 ppHe = calc_He_ratio * (deco_diluent - ppWater); |
201 | 961 } |
962 else | |
963 { | |
236 | 964 ppN2 = 0.0; |
201 | 965 ppHe = 0.0; |
966 } | |
236 | 967 assert( 0.0 <= ppN2 && ppN2 < 14.0 ); |
201 | 968 assert( 0.0 <= ppHe && ppHe < 14.0 ); |
969 } | |
970 | |
971 ////////////////////////////////////////////////////////////////////////////// | |
167 | 972 // clear_tissue |
973 // | |
165 | 974 // optimized in v.101 (var_N2_a) |
167 | 975 // |
976 // preload tissues with standard pressure for the given ambient pressure. | |
977 // Note: fixed N2_ratio for standard air. | |
201 | 978 // |
167 | 979 static void clear_tissue(void) |
116 | 980 { |
511
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diff
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|
981 overlay float p; |
116 | 982 |
167 | 983 // Kludge: the 0.0002 of 0.7902 are missing with standard air. |
984 N2_ratio = 0.7902; | |
212 | 985 pres_respiration = int_I_pres_respiration * 0.001; |
711
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parents:
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|
986 |
511
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987 p = N2_ratio * (pres_respiration - ppWater); |
338 | 988 for(ci=0; ci<NUM_COMP; ci++) |
126 | 989 { |
511
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990 // cycle through the 16 Bühlmann N2 tissues |
339 | 991 pres_tissue_N2[ci] = p; |
197 | 992 |
993 // cycle through the 16 Bühlmann tissues for Helium | |
339 | 994 pres_tissue_He[ci] = 0.0; |
511
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995 } |
116 | 996 |
169
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997 clear_deco_table(); |
126 | 998 char_O_deco_status = 0; |
999 char_O_nullzeit = 0; | |
168 | 1000 int_O_ascenttime = 0; |
126 | 1001 char_O_gradient_factor = 0; |
1002 char_O_relative_gradient_GF = 0; | |
258 | 1003 |
1004 calc_lead_tissue_limit = 0.0; | |
1005 char_O_gtissue_no = 0; | |
167 | 1006 } |
116 | 1007 |
167 | 1008 ////////////////////////////////////////////////////////////////////////////// |
1009 // calc_hauptroutine | |
1010 // | |
1011 // this is the major code in dive mode calculates: | |
116 | 1012 // the tissues, |
167 | 1013 // the bottom time, |
1014 // and simulates the ascend with all deco stops. | |
171 | 1015 // |
1016 // The deco_state sequence is : | |
1017 // 3 (at surface) | |
1018 // +---> 0 : calc nullzeit | |
1019 // | 2 : simulate ascent to first stop (at 10m/min, less that 16x 1min simu) | |
1020 // | +-> 1 : simulate up to 16min of stops. | |
1021 // | +------< not finished | |
1022 // +--------< finish | |
1023 // | |
312
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1024 // Added steps 6,5 for @+5 calculation: |
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1025 // 6 = ascent to first stop (same as 2), except continue to 7 |
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1026 // 7 = same as 1, except loop to 7. |
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1027 // |
167 | 1028 static void calc_hauptroutine(void) |
116 | 1029 { |
711
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|
1030 static unsigned char backup_gas_used = 0; |
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diff
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|
1031 static unsigned char backup_gas_depth = 0; |
186 | 1032 |
711
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parents:
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diff
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|
1033 calc_hauptroutine_data_input(); |
116 | 1034 |
711
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changeset
|
1035 calc_hauptroutine_update_tissues(); |
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diff
changeset
|
1036 calc_gradient_factor(); |
116 | 1037 |
711
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parents:
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diff
changeset
|
1038 // toggle between calculation for nullzeit (bottom time), |
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diff
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|
1039 // deco stops |
167 | 1040 // and more deco stops (continue) |
697 | 1041 switch( char_O_deco_status ) |
711
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diff
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|
1042 { |
186 | 1043 case 3: //---- At surface: start a new dive ------------------------------ |
711
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parents:
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|
1044 clear_deco_table(); |
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parents:
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diff
changeset
|
1045 copy_deco_table(); |
743 | 1046 int_O_ascenttime = 0; // Reset TTS. |
711
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parents:
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diff
changeset
|
1047 int_O_extra_ascenttime = 0; |
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diff
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|
1048 char_O_nullzeit = 0; // Reset bottom time. |
278 | 1049 char_O_deco_status = 0; // Calc bottom-time/nullzeit next iteration. |
201 | 1050 |
217 | 1051 // Values that should be reset just once for the full real dive. |
1052 // This is used to record the lowest stop for the whole dive, | |
1053 // Including ACCROSS all simulated ascent. | |
695 | 1054 low_depth = 0.0; |
567 | 1055 locked_GF_step = 0.0; |
217 | 1056 |
1057 // Reset gas switch history. | |
241 | 1058 backup_gas_used = sim_gas_last_used = 0; |
1059 backup_gas_depth = sim_gas_last_depth = 0; | |
203 | 1060 sim_dive_mins = 0; |
1061 break; | |
186 | 1062 |
167 | 1063 case 0: //---- bottom time ----------------------------------------------- |
312
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|
1064 default: |
509 | 1065 gas_switch_find_current(); // Lookup for current gas & time. |
1066 gas_switch_set(); // setup calc_ratio's | |
1067 | |
711
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JeanDo <jd.gascuel@free.fr>
parents:
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diff
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|
1068 calc_nullzeit(); |
534
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BUGFIX NDL deco blocking stops during ascent when less than 10' TTS.
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532
diff
changeset
|
1069 if( char_O_nullzeit > 0 ) // Some NDL time left ? |
ba1fb2e23f46
BUGFIX NDL deco blocking stops during ascent when less than 10' TTS.
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diff
changeset
|
1070 { |
ba1fb2e23f46
BUGFIX NDL deco blocking stops during ascent when less than 10' TTS.
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diff
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|
1071 char_O_deco_status = 0; // YES: recalc ndl next time. |
ba1fb2e23f46
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diff
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|
1072 clear_deco_table(); // Also clear stops ! |
ba1fb2e23f46
BUGFIX NDL deco blocking stops during ascent when less than 10' TTS.
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diff
changeset
|
1073 copy_deco_table(); |
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532
diff
changeset
|
1074 char_O_deco_last_stop = 0; // And last stop (OSTC menu anim) |
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BUGFIX NDL deco blocking stops during ascent when less than 10' TTS.
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diff
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|
1075 } |
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BUGFIX NDL deco blocking stops during ascent when less than 10' TTS.
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diff
changeset
|
1076 else |
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BUGFIX NDL deco blocking stops during ascent when less than 10' TTS.
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diff
changeset
|
1077 char_O_deco_status = 2; // NO: calc ascent next time. |
711
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parents:
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diff
changeset
|
1078 break; |
186 | 1079 |
1080 case 2: //---- Simulate ascent to first stop ----------------------------- | |
312
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|
1081 case 6: // @+5min variation |
203 | 1082 // Check proposed gas at begin of ascent simulation |
247
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BUGFIX Count gas switch delay down during ascent (bug bb26)
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241
diff
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|
1083 sim_dive_mins = int_I_divemins; // Init current time. |
241 | 1084 |
711
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parents:
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diff
changeset
|
1085 gas_switch_find_current(); // Lookup for current gas & time. |
532 | 1086 gas_switch_set(); // setup calc_ratio's |
1087 | |
247
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241
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|
1088 backup_gas_used = sim_gas_last_used; // And save for later simu steps. |
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241
diff
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|
1089 backup_gas_depth = sim_gas_last_depth; // And save for later simu steps. |
186 | 1090 |
711
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parents:
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diff
changeset
|
1091 sim_ascent_to_first_stop(); |
201 | 1092 |
312
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1093 // Calc stops next time (deco or gas switch). |
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|
1094 char_O_deco_status = 1 | ( char_O_deco_status & 4 ); |
711
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parents:
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diff
changeset
|
1095 break; |
169
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JeanDo
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168
diff
changeset
|
1096 |
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diff
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|
1097 case 1: //---- Simulate stops -------------------------------------------- |
312
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|
1098 case 5: // @+5 variation. |
711
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parents:
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diff
changeset
|
1099 calc_hauptroutine_calc_deco(); |
186 | 1100 |
1101 // If simulation is finished, restore the GF low reference, so that | |
1102 // next ascent simulation is done from the current depth: | |
711
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parents:
710
diff
changeset
|
1103 if( (char_O_deco_status & 3) == 0 ) |
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parents:
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diff
changeset
|
1104 { |
241 | 1105 sim_gas_last_used = backup_gas_used; |
1106 sim_gas_last_depth = backup_gas_depth; | |
186 | 1107 } |
711
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diff
changeset
|
1108 break; |
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diff
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|
1109 } |
167 | 1110 |
116 | 1111 } |
1112 | |
167 | 1113 ////////////////////////////////////////////////////////////////////////////// |
1114 // calc_hauptroutine_data_input | |
1115 // | |
1116 // Reset all C-code dive parameters from their ASM-code values. | |
1117 // Detect gas change condition. | |
1118 // | |
116 | 1119 void calc_hauptroutine_data_input(void) |
1120 { | |
203 | 1121 overlay short int_temp; |
511
2a6293641d51
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509
diff
changeset
|
1122 overlay unsigned char g; |
711
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parents:
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diff
changeset
|
1123 |
197 | 1124 pres_respiration = int_I_pres_respiration * 0.001; |
1125 pres_surface = int_I_pres_surface * 0.001; | |
1126 N2_ratio = char_I_N2_ratio * 0.01; | |
1127 He_ratio = char_I_He_ratio * 0.01; | |
1128 float_deco_distance = char_I_deco_distance * 0.01; // Get offset is in mbar. | |
116 | 1129 |
126 | 1130 // ____________________________________________________ |
1131 // | |
1132 // _____________ G A S _ C H A N G E S ________________ | |
1133 // ____________________________________________________ | |
711
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parents:
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diff
changeset
|
1134 |
212 | 1135 // Keep a margin of 150mbar = 1.50m |
1136 int_temp = (int_I_pres_respiration - int_I_pres_surface) | |
1137 + MBAR_REACH_GASCHANGE_AUTO_CHANGE_OFF; | |
711
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parents:
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diff
changeset
|
1138 |
203 | 1139 // Gas are selectable if we did not pass the change depth by more than 1.50m: |
511
2a6293641d51
NEW NDL NDL faster/more precise simu (but no closed formula for trimix).
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509
diff
changeset
|
1140 for(g=0; g < NUM_GAS; ++g) |
126 | 1141 { |
511
2a6293641d51
NEW NDL NDL faster/more precise simu (but no closed formula for trimix).
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509
diff
changeset
|
1142 deco_gas_change[g] = 0; |
2a6293641d51
NEW NDL NDL faster/more precise simu (but no closed formula for trimix).
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parents:
509
diff
changeset
|
1143 if(char_I_deco_gas_change[g]) |
2a6293641d51
NEW NDL NDL faster/more precise simu (but no closed formula for trimix).
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509
diff
changeset
|
1144 if( int_temp > 100 *(short)char_I_deco_gas_change[g] ) |
711
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parents:
710
diff
changeset
|
1145 deco_gas_change[g] = char_I_deco_gas_change[g]; |
126 | 1146 } |
116 | 1147 |
197 | 1148 const_ppO2 = char_I_const_ppO2 * 0.01; |
1149 float_desaturation_multiplier = char_I_desaturation_multiplier * 0.01; | |
1150 float_saturation_multiplier = char_I_saturation_multiplier * 0.01; | |
1151 GF_low = char_I_GF_Low_percentage * 0.01; | |
1152 GF_high = char_I_GF_High_percentage * 0.01; | |
126 | 1153 GF_delta = GF_high - GF_low; |
116 | 1154 } |
1155 | |
167 | 1156 ////////////////////////////////////////////////////////////////////////////// |
171 | 1157 // |
1158 // | |
116 | 1159 void calc_hauptroutine_update_tissues(void) |
1160 { | |
197 | 1161 assert( 0.00 <= N2_ratio && N2_ratio <= 1.00 ); |
1162 assert( 0.00 <= He_ratio && He_ratio <= 1.00 ); | |
1163 assert( (N2_ratio + He_ratio) <= 0.95 ); | |
237 | 1164 assert( 0.800 < pres_respiration && pres_respiration < 14.0 ); |
197 | 1165 |
711
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parents:
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diff
changeset
|
1166 pres_diluent = pres_respiration; |
307 | 1167 if( char_I_const_ppO2 != 0 ) // new in v.101 |
186 | 1168 { |
322 | 1169 overlay float flush_ppO2 = pres_respiration * (1.0 - N2_ratio - He_ratio); |
711
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parents:
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diff
changeset
|
1170 |
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parents:
710
diff
changeset
|
1171 pres_diluent -= const_ppO2; // new in v.101 |
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parents:
710
diff
changeset
|
1172 pres_diluent /= N2_ratio + He_ratio; // new in v.101 |
321 | 1173 if( pres_diluent < 0.0 ) |
1174 pres_diluent = 0.0; | |
711
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parents:
710
diff
changeset
|
1175 if( pres_diluent > pres_respiration ) // new in v.101 |
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parents:
710
diff
changeset
|
1176 pres_diluent = pres_respiration; // new in v.101 |
307 | 1177 |
711
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parents:
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diff
changeset
|
1178 char_O_diluent = (unsigned char)(pres_diluent/pres_respiration*100.0 + 0.5); |
322 | 1179 |
711
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parents:
710
diff
changeset
|
1180 if( flush_ppO2 > 2.545) flush_ppO2 = 2.55; |
f555590f1419
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parents:
710
diff
changeset
|
1181 if( flush_ppO2 < 0.0 ) flush_ppO2 = 0.0; |
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parents:
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diff
changeset
|
1182 char_O_flush_ppO2 = (unsigned char)(flush_ppO2*100.0 + 0.5); |
186 | 1183 } |
307 | 1184 |
310
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Fix EAD/END display (not mm, m with a trailling space)
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307
diff
changeset
|
1185 if( pres_diluent > ppWater ) // new in v.101 |
711
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parents:
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diff
changeset
|
1186 { |
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diff
changeset
|
1187 overlay float EAD, END; |
307 | 1188 |
310
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diff
changeset
|
1189 ppN2 = N2_ratio * (pres_diluent - ppWater); // changed in v.101 |
711
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parents:
710
diff
changeset
|
1190 ppHe = He_ratio * (pres_diluent - ppWater); // changed in v.101 |
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|
1191 |
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diff
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|
1192 // EAD : Equivalent Air Dive. Equivalent depth for the same N2 level |
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|
1193 // with plain air. |
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diff
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|
1194 // ppN2 = 79% * (P_EAD - ppWater) |
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diff
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|
1195 // EAD = (P_EAD - Psurface) * 10 |
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parents:
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diff
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|
1196 // ie: EAD = (ppN2 / 0.7902 + ppWater -Psurface) * 10 |
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diff
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|
1197 EAD = (ppN2 / 0.7902 + ppWater - pres_surface) * BAR_TO_METER; |
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parents:
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diff
changeset
|
1198 if( EAD < 0.0 || EAD > 245.5 ) EAD = 0.0; |
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JeanDo <jd.gascuel@free.fr>
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diff
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|
1199 char_O_EAD = (unsigned char)(EAD + 0.5); |
307 | 1200 |
711
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parents:
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|
1201 // END : Equivalent Narcotic Dive. |
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diff
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|
1202 // Here we count O2 as narcotic too. Hence everything but helium (has a narcosis factor of |
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|
1203 // 0.23 btw). Hence the formula becomes: |
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diff
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|
1204 // END * BarPerMeter * (1.0 - 0.0) - ppWater + Psurface == Pambient - ppHe - ppWater |
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|
1205 // ie: END = (Pambient - ppHe - Psurface) * BAR_TO_METER |
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diff
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|
1206 // |
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diff
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|
1207 // Source cited: |
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diff
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|
1208 // The Physiology and Medicine of Diving by Peter Bennett and David Elliott, |
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parents:
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diff
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|
1209 // 4th edition, 1993, W.B.Saunders Company Ltd, London. |
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|
1210 END = (pres_respiration - ppHe - pres_surface) * BAR_TO_METER; |
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diff
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|
1211 if( END < 0.0 || END > 245.5 ) END = 0.0; |
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minor cleanups for CNS/NOAA bugfix.
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parents:
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diff
changeset
|
1212 char_O_END = (unsigned char)(END + 0.5); |
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diff
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|
1213 } |
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diff
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|
1214 else // new in v.101 |
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parents:
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diff
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|
1215 { |
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diff
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|
1216 ppN2 = 0.0; // new in v.101 |
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parents:
710
diff
changeset
|
1217 ppHe = 0.0; // new in v.101 |
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parents:
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diff
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|
1218 char_O_EAD = char_O_END = 0; |
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parents:
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diff
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|
1219 } |
116 | 1220 |
711
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|
1221 if(!char_I_step_is_1min) |
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diff
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|
1222 calc_tissue(0); |
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diff
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|
1223 else |
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diff
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|
1224 calc_tissue(1); |
186 | 1225 |
192 | 1226 // Calc limit for surface, ie. GF_high. |
258 | 1227 calc_limit(); |
186 | 1228 |
711
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parents:
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diff
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|
1229 int_O_gtissue_limit = (short)(calc_lead_tissue_limit * 1000); |
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JeanDo <jd.gascuel@free.fr>
parents:
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diff
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|
1230 int_O_gtissue_press = (short)((pres_tissue_N2[char_O_gtissue_no] + pres_tissue_He[char_O_gtissue_no]) * 1000); |
171 | 1231 } |
1232 | |
116 | 1233 |
167 | 1234 ////////////////////////////////////////////////////////////////////////////// |
169
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1235 // Compute stops. |
711
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|
1236 // |
169
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1237 // Note: because this can be very long, break on 16 iterations, and set state |
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diff
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|
1238 // to 0 when finished, or to 1 when needing to continue. |
334
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BUGFIX minor error in gas-switch algo (spurious surface decostop rarely added).
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diff
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|
1239 // Note: because each iteration might be very long too (~ 66 ms in 1.84beta), |
257
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Use timer TMR3 to limit loops in calc_hauptroutine_calc_deco()
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diff
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|
1240 // break the loop when total time > 512msec. |
169
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diff
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|
1241 // |
116 | 1242 void calc_hauptroutine_calc_deco(void) |
1243 { | |
169
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|
1244 overlay unsigned char loop; |
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diff
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|
1245 |
711
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|
1246 for(loop = 0; loop < 16; ++loop) |
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parents:
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diff
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|
1247 { |
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parents:
710
diff
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|
1248 // Limit loops to 512ms, using the RTC timer 3: |
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minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
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|
1249 if( tmr3() & (512*32) ) |
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parents:
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diff
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|
1250 break; |
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diff
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|
1251 |
755 | 1252 if( calc_nextdecodepth() ) |
241 | 1253 { |
1254 if( temp_depth_limit == 0 ) | |
1255 goto Surface; | |
116 | 1256 |
241 | 1257 //---- We hit a stop at temp_depth_limit --------------------- |
317 | 1258 temp_deco = temp_depth_limit * METER_TO_BAR // Convert to relative bar, |
755 | 1259 + pres_surface; // To absolute. |
471 | 1260 if( !update_deco_table() ) // Adds a one minute stops. |
1261 goto Surface; // Deco table full: abort... | |
241 | 1262 } |
1263 else | |
1264 { | |
1265 //---- No stop ----------------------------------------------- | |
317 | 1266 temp_deco -= (10*METER_TO_BAR); // Ascend 10m, no wait. |
169
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1267 |
241 | 1268 //---- Finish computations once surface is reached ----------- |
1269 if( temp_deco <= pres_surface ) | |
1270 { | |
1271 Surface: | |
471 | 1272 if( char_O_deco_status == 1 ) // Don't in @+5min variant. |
711
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parents:
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diff
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|
1273 copy_deco_table(); |
312
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|
1274 |
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|
1275 calc_ascenttime(); |
471 | 1276 char_O_deco_status = 0; // calc nullzeit next time. |
1277 char_O_deco_last_stop = 0; // Surface reached (to animate menu) | |
755 | 1278 return; |
241 | 1279 } |
1280 } | |
1281 //---- Then update tissue -------------------------------------------- | |
203 | 1282 sim_dive_mins++; // Advance simulated time by 1 minute. |
241 | 1283 gas_switch_set(); // Apply any simulated gas change, once validated. |
711
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JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1284 sim_alveolar_presures(); // Updates ppN2 and ppHe. |
192 | 1285 sim_tissue(1); // Simulate compartiments for 1 minute. |
711
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diff
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|
1286 } |
169
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diff
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|
1287 |
711
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diff
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|
1288 // Surface not reached, need more stops... for menu animation. |
278 | 1289 char_O_deco_last_stop = temp_depth_limit; // Reached depth. |
116 | 1290 } |
1291 | |
167 | 1292 ////////////////////////////////////////////////////////////////////////////// |
169
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diff
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|
1293 // Simulation ascention to first deco stop. |
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diff
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|
1294 // |
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diff
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|
1295 // Note: because we ascent with a constant speed (10m/mn, ie. 1bar/mn), |
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diff
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|
1296 // there is no need to break on more that 16 iterations |
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diff
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|
1297 // (or we are already in deep shit). |
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diff
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|
1298 // |
334
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326
diff
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|
1299 // Input: pres_respiration |
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BUGFIX minor error in gas-switch algo (spurious surface decostop rarely added).
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diff
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|
1300 // Output: temp_deco |
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diff
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|
1301 // |
312
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|
1302 // if char_O_deco_status indicate @+5 variant, add extra time at current depth, |
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diff
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|
1303 // before ascent. |
169
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|
1304 void sim_ascent_to_first_stop(void) |
116 | 1305 { |
698 | 1306 overlay unsigned char fast = 1; // 1min or 2sec steps. |
1307 | |
171 | 1308 update_startvalues(); |
169
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|
1309 clear_deco_table(); |
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|
1310 |
711
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|
1311 temp_deco = pres_respiration; // Starts from current real depth. |
169
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|
1312 |
312
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diff
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|
1313 // Are we doing the special @+5min variation ? |
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|
1314 if(char_O_deco_status & 4) |
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|
1315 sim_extra_time(); |
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|
1316 |
241 | 1317 //---- Loop until first stop, gas switch, or surface is reached ---------- |
711
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diff
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|
1318 for(;;) |
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diff
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|
1319 { |
461 | 1320 overlay float old_deco = temp_deco; // Pamb backup (bars) |
460 | 1321 |
698 | 1322 // Try ascending 1 full minute (fast) or 2sec (!fast): |
1323 if( fast ) | |
1324 temp_deco -= 10*METER_TO_BAR; // 1 min, at 10m/min. ~ 1bar. | |
1325 else | |
1326 temp_deco -= (10.0/30.0)*METER_TO_BAR; // 2sec at 10m/min. | |
1327 | |
461 | 1328 if( temp_deco < pres_surface ) // But don't go over surface. |
1329 temp_deco = pres_surface; | |
203 | 1330 |
461 | 1331 // Recompute sim_lead_tissue_limit at GF_low (deepest stop), because |
1332 // one minute passed. | |
212 | 1333 sim_limit(GF_low); |
1334 | |
1335 // Did we reach deepest remaining stop ? | |
241 | 1336 if( temp_deco < sim_lead_tissue_limit ) |
212 | 1337 { |
461 | 1338 temp_deco = old_deco; // Restore last correct depth, |
698 | 1339 |
1340 if( fast ) | |
1341 { | |
1342 fast = 0; // Retry with 2sec steps. | |
1343 continue; | |
1344 } | |
1345 else | |
1346 break; // Done... | |
212 | 1347 } |
1348 | |
203 | 1349 // Did we reach surface ? |
460 | 1350 // NOTE: we should round BEFORE checking surface is reached. |
461 | 1351 temp_depth_limit = (unsigned char)(0.5 + (temp_deco - pres_surface) * BAR_TO_METER); |
1352 if( temp_depth_limit == 0 ) | |
203 | 1353 { |
1354 temp_deco = pres_surface; // Yes: finished ! | |
1355 break; | |
1356 } | |
169
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1357 |
241 | 1358 // Check for gas change below new depth ? |
1359 if( gas_switch_deepest() ) | |
1360 { | |
334
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|
1361 assert( temp_depth_limit > 0); |
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|
1362 |
317 | 1363 temp_deco = temp_depth_limit * METER_TO_BAR + pres_surface; |
212 | 1364 break; |
241 | 1365 } |
171 | 1366 |
698 | 1367 if( fast ) |
1368 sim_dive_mins++; // Advance simulated time by 1 minute. | |
241 | 1369 sim_alveolar_presures(); // temp_deco --> ppN2/ppHe |
698 | 1370 sim_tissue(fast); // and update tissues for 1 min. |
711
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|
1371 } |
167 | 1372 } |
116 | 1373 |
167 | 1374 ////////////////////////////////////////////////////////////////////////////// |
312
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|
1375 // Simulation extra time at the current depth. |
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|
1376 // |
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1377 // This routine is used for @+5min feature. |
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1378 void sim_extra_time(void) |
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1379 { |
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|
1380 overlay unsigned char extra = read_custom_function(58); |
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|
1381 do { |
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|
1382 sim_dive_mins++; // Advance simulated time by 1 minute. |
711
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|
1383 sim_tissue(1); // and update tissues for 1 min. |
312
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|
1384 } while( --extra != 0 ); |
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|
1385 } |
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1386 |
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|
1387 ////////////////////////////////////////////////////////////////////////////// |
167 | 1388 // calc_tissue |
1389 // | |
116 | 1390 // optimized in v.101 |
167 | 1391 // |
184 | 1392 static void calc_tissue(PARAMETER unsigned char period) |
116 | 1393 { |
251 | 1394 assert( 0.00 <= ppN2 && ppN2 < 11.2 ); // 80% N2 at 130m |
1395 assert( 0.00 <= ppHe && ppHe < 12.6 ); // 90% He at 130m | |
236 | 1396 |
338 | 1397 for (ci=0;ci<NUM_COMP;ci++) |
126 | 1398 { |
258 | 1399 read_buhlmann_times(period); // 2 sec or 1 min period. |
116 | 1400 |
126 | 1401 // N2 |
339 | 1402 temp_tissue = (ppN2 - pres_tissue_N2[ci]) * var_N2_e; |
126 | 1403 temp_tissue_safety(); |
339 | 1404 pres_tissue_N2[ci] += temp_tissue; |
165 | 1405 |
126 | 1406 // He |
339 | 1407 temp_tissue = (ppHe - pres_tissue_He[ci]) * var_He_e; |
126 | 1408 temp_tissue_safety(); |
339 | 1409 pres_tissue_He[ci] += temp_tissue; |
192 | 1410 } |
167 | 1411 } |
116 | 1412 |
167 | 1413 ////////////////////////////////////////////////////////////////////////////// |
192 | 1414 // calc_limit |
167 | 1415 // |
192 | 1416 // New in v.111 : separated from calc_tissue(), and depends on GF value. |
167 | 1417 // |
258 | 1418 static void calc_limit(void) |
167 | 1419 { |
192 | 1420 char_O_gtissue_no = 255; |
1421 calc_lead_tissue_limit = 0.0; | |
1422 | |
338 | 1423 for(ci=0; ci<NUM_COMP;ci++) |
192 | 1424 { |
339 | 1425 overlay float N2 = pres_tissue_N2[ci]; |
1426 overlay float He = pres_tissue_He[ci]; | |
293
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1427 overlay float p = N2 + He; |
192 | 1428 |
258 | 1429 read_buhlmann_coefficients(); |
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1430 var_N2_a = (var_N2_a * N2 + var_He_a * He) / p; |
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1431 var_N2_b = (var_N2_b * N2 + var_He_b * He) / p; |
116 | 1432 |
192 | 1433 // Apply the Eric Baker's varying gradient factor correction. |
1434 // Note: the correction factor depends both on GF and b, | |
1435 // Actual values are in the 1.5 .. 1.0 range (for a GF=30%), | |
1436 // so that can change who is the leading gas... | |
1437 // Note: Also depends of the GF. So the calcul is different for | |
1438 // GF_low, current GF, or GF_high... | |
1439 // *BUT* calc_tissue() is used to compute bottom time, | |
1440 // hence what would happend at surface, | |
1441 // hence at GF_high. | |
509 | 1442 if( char_I_deco_model != 0 ) |
258 | 1443 p = ( p - var_N2_a * GF_high) * var_N2_b |
1444 / (GF_high + var_N2_b * (1.0 - GF_high)); | |
192 | 1445 else |
1446 p = (p - var_N2_a) * var_N2_b; | |
258 | 1447 if( p < 0.0 ) p = 0.0; |
192 | 1448 |
1449 if( p > calc_lead_tissue_limit ) | |
1450 { | |
1451 char_O_gtissue_no = ci; | |
1452 calc_lead_tissue_limit = p; | |
1453 } | |
1454 } | |
197 | 1455 |
338 | 1456 assert( char_O_gtissue_no < NUM_COMP ); |
197 | 1457 assert( 0.0 <= calc_lead_tissue_limit && calc_lead_tissue_limit <= 14.0); |
167 | 1458 } |
1459 | |
1460 ////////////////////////////////////////////////////////////////////////////// | |
1461 // calc_nullzeit | |
1462 // | |
1463 // calculates the remaining bottom time | |
1464 // | |
511
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1465 // NOTE: Erik Baker's closed formula works for Nitroxes. Trimix adds a second |
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1466 // exponential term to the M-value equation, making it impossible to |
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1467 // invert... So we have to make a fast-simu until we find a better way. |
509 | 1468 // |
1469 // Input: pres_respiration | |
1470 // Output: char_O_nullzeit | |
167 | 1471 // |
1472 static void calc_nullzeit(void) | |
1473 { | |
511
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1474 //---- Compute ppN2 and ppHe --------------------------------------------- |
509 | 1475 temp_deco = pres_respiration; |
1476 sim_alveolar_presures(); | |
167 | 1477 |
509 | 1478 char_O_nullzeit = 240; |
1479 for(ci=0; ci<NUM_COMP; ci++) | |
1480 { | |
511
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1481 //---- Read A/B values and loading factor for N2 and He -------------- |
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1482 overlay float tN2 = pres_tissue_N2[ci]; |
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1483 overlay float tHe = pres_tissue_He[ci]; |
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1484 overlay float t = tN2 + tHe; |
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1485 overlay unsigned char ndl; |
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1486 overlay unsigned char period = 10; |
192 | 1487 |
509 | 1488 read_buhlmann_coefficients(); |
511
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1489 read_buhlmann_times(2); // Starts with a 10min period. |
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1490 |
511
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1491 //---- Simulate for that tissue -------------------------------------- |
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1492 // NOTE: No need to simulate for longuer than the already found NDL. |
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1493 for(ndl=0; ndl<char_O_nullzeit;) |
509 | 1494 { |
511
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1495 //---- Compute updated mix M-value at surface |
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1496 overlay float a = (var_N2_a * tN2 + var_He_a * tHe) / t; |
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1497 overlay float b = (var_N2_b * tN2 + var_He_b * tHe) / t; |
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1498 overlay float M0 = (a + pres_surface/b); |
116 | 1499 |
511
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1500 //---- Add 10min/1min to N2/He tissues |
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1501 overlay float dTN2 = (ppN2 - tN2) * var_N2_e; |
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1502 overlay float dTHe = (ppHe - tHe) * var_He_e; |
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1503 |
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1504 //---- Apply security margin when using the non-GF model |
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1505 if( char_I_deco_model == 0 ) |
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1506 { |
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1507 dTN2 *= float_saturation_multiplier; |
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1508 dTHe *= float_saturation_multiplier; |
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1509 } |
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1510 else // Or GF-based model |
509 | 1511 M0 = GF_high * (M0 - pres_surface) + pres_surface; |
167 | 1512 |
511
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1513 //---- Simulate off-gasing while going to surface |
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1514 // TODO ! |
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1515 // dTN2 -= exp( ... ascent time ... ppN2...) |
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1516 // dTHe -= exp( ... ascent time ... ppHe...) |
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1517 |
534
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1518 //---- Ok now, and still ok to surface after 1 or 10 minutes ? |
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1519 if( (t <= M0) && (t + dTN2 + dTHe <= M0) ) |
509 | 1520 { |
511
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1521 tN2 += dTN2; // YES: apply gas loadings, |
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1522 tHe += dTHe; |
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1523 t = tN2 + tHe; |
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1524 ndl += period; // increment NDL, |
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1525 continue; // and loop. |
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1526 } |
116 | 1527 |
511
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1528 //---- Should we retry with smaller steps ? |
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1529 if( period == 10 ) |
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1530 { |
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1531 read_buhlmann_times(1); // 1min coefs. |
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1532 period = 1; |
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1533 continue; |
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1534 } |
167 | 1535 |
511
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1536 //---- ELSE make a linear approx for the last minute |
524 | 1537 // Usefull to have a meaningfull rounding of NDL. |
1538 // But ONLY it positive (negativ casted to unsigned is bad). | |
1539 if( M0 > t ) | |
1540 ndl += (unsigned char)(0.5f + (M0-t)/(dTN2+dTHe)); | |
511
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1541 break; |
509 | 1542 } |
511
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1543 |
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1544 // Keep the shortest NDL found |
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1545 if( ndl < char_O_nullzeit ) |
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1546 char_O_nullzeit = ndl; |
339 | 1547 } |
167 | 1548 } |
116 | 1549 |
167 | 1550 ////////////////////////////////////////////////////////////////////////////// |
1551 // calc_ascenttime | |
1552 // | |
312
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1553 // Summup ascent from bottom to surface, at 1 bar/min, 1min for last 3 meters, |
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1554 // and all stops. |
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1555 // |
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1556 // Result in int_O_ascenttime, or int_O_extra_ascenttime if in @+5min variant. |
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1557 static void calc_ascenttime(void) |
116 | 1558 { |
323 | 1559 overlay unsigned char x; |
1560 overlay unsigned short sum; | |
168 | 1561 |
323 | 1562 // + 0.7 to count 1 minute ascent time from 3 metre to surface |
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1563 overlay float ascent = pres_respiration - pres_surface + 0.7; |
323 | 1564 if (ascent < 0.0) |
1565 ascent = 0.0; | |
1566 sum = (unsigned short)(ascent + 0.99); | |
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1567 |
338 | 1568 for(x=0; x<NUM_STOPS && internal_deco_depth[x]; x++) |
323 | 1569 sum += (unsigned short)internal_deco_time[x]; |
1570 | |
1571 if( char_O_deco_status == 1 ) | |
1572 int_O_ascenttime = sum; | |
126 | 1573 else |
323 | 1574 int_O_extra_ascenttime = sum; |
167 | 1575 } |
116 | 1576 |
167 | 1577 ////////////////////////////////////////////////////////////////////////////// |
1578 // update_startvalues | |
1579 // | |
116 | 1580 // updated in v.102 |
167 | 1581 // |
116 | 1582 void update_startvalues(void) |
1583 { | |
167 | 1584 overlay unsigned char x; |
116 | 1585 |
201 | 1586 // Start ascent simulation with current tissue partial pressures. |
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1587 for(x=0; x<NUM_COMP; x++) |
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1588 { |
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1589 sim_pres_tissue_N2[x] = pres_tissue_N2[x]; |
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1590 sim_pres_tissue_He[x] = pres_tissue_He[x]; |
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1591 } |
197 | 1592 |
201 | 1593 // No leading tissue (yet) for this ascent simulation. |
197 | 1594 sim_lead_tissue_limit = 0.0; |
1595 sim_lead_tissue_no = 255; | |
167 | 1596 } |
116 | 1597 |
167 | 1598 ////////////////////////////////////////////////////////////////////////////// |
192 | 1599 // sim_tissue |
167 | 1600 // |
116 | 1601 // optimized in v.101 |
167 | 1602 // |
1603 // Function very simular to calc_tissue, but: | |
1604 // + Use a 1min or 10min period. | |
1605 // + Do it on sim_pres_tissue, instead of pres_tissue. | |
184 | 1606 static void sim_tissue(PARAMETER unsigned char period) |
116 | 1607 { |
251 | 1608 assert( 0.00 <= ppN2 && ppN2 < 11.2 ); // 80% N2 at 130m |
1609 assert( 0.00 <= ppHe && ppHe < 12.6 ); // 90% He at 130m | |
236 | 1610 |
338 | 1611 for(ci=0; ci<NUM_COMP; ci++) |
126 | 1612 { |
258 | 1613 read_buhlmann_times(period); // 1 or 10 minute(s) interval |
165 | 1614 |
126 | 1615 // N2 |
339 | 1616 temp_tissue = (ppN2 - sim_pres_tissue_N2[ci]) * var_N2_e; |
126 | 1617 temp_tissue_safety(); |
339 | 1618 sim_pres_tissue_N2[ci] += temp_tissue; |
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1619 |
126 | 1620 // He |
339 | 1621 temp_tissue = (ppHe - sim_pres_tissue_He[ci]) * var_He_e; |
126 | 1622 temp_tissue_safety(); |
339 | 1623 sim_pres_tissue_He[ci] += temp_tissue; |
192 | 1624 } |
167 | 1625 } |
116 | 1626 |
167 | 1627 ////////////////////////////////////////////////////////////////////////////// |
192 | 1628 // sim_limit() |
1629 // | |
1630 // New in v.111 | |
1631 // | |
1632 // Function separated from sim_tissue() to allow recomputing limit on | |
1633 // different depth, because it depends on current gradient factor. | |
167 | 1634 // |
192 | 1635 static void sim_limit(PARAMETER float GF_current) |
116 | 1636 { |
212 | 1637 assert( 0.0 < GF_current && GF_current <= 1.0f); |
1638 | |
192 | 1639 sim_lead_tissue_limit = 0.0; |
212 | 1640 sim_lead_tissue_no = 0; // If no one is critic, keep first tissue. |
192 | 1641 |
338 | 1642 for(ci=0; ci<NUM_COMP; ci++) |
192 | 1643 { |
339 | 1644 overlay float N2 = sim_pres_tissue_N2[ci]; |
1645 overlay float He = sim_pres_tissue_He[ci]; | |
241 | 1646 overlay float p = N2 + He; |
192 | 1647 |
258 | 1648 read_buhlmann_coefficients(); |
241 | 1649 var_N2_a = (var_N2_a * N2 + var_He_a * He) / p; |
1650 var_N2_b = (var_N2_b * N2 + var_He_b * He) / p; | |
192 | 1651 |
1652 // Apply the Eric Baker's varying gradient factor correction. | |
1653 // Note: the correction factor depends both on GF and b, | |
1654 // Actual values are in the 1.5 .. 1.0 range (for a GF=30%), | |
1655 // so that can change who is the leading gas... | |
1656 // Note: Also depends of the GF_current... | |
509 | 1657 if( char_I_deco_model != 0 ) |
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1658 p = ( p - var_N2_a * GF_current) |
302 | 1659 / (GF_current / var_N2_b + 1.0 - GF_current); |
192 | 1660 else |
1661 p = (p - var_N2_a) * var_N2_b; | |
1662 | |
1663 if( p > sim_lead_tissue_limit ) | |
1664 { | |
1665 sim_lead_tissue_no = ci; | |
1666 sim_lead_tissue_limit = p; | |
1667 } | |
1668 } // for ci | |
197 | 1669 |
338 | 1670 assert( sim_lead_tissue_no < NUM_COMP ); |
237 | 1671 assert( 0.0 <= sim_lead_tissue_limit && sim_lead_tissue_limit <= 14.0 ); |
167 | 1672 } |
116 | 1673 |
167 | 1674 ////////////////////////////////////////////////////////////////////////////// |
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1675 // clear_deco_table |
167 | 1676 // |
1677 // unchanged in v.101 | |
1678 // | |
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changeset
|
1679 static void clear_deco_table(void) |
116 | 1680 { |
169
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Merge decoplan display for both GF and Buhlmann models.
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parents:
168
diff
changeset
|
1681 overlay unsigned char x; |
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
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168
diff
changeset
|
1682 |
338 | 1683 for(x=0; x<NUM_STOPS; ++x) |
169
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Merge decoplan display for both GF and Buhlmann models.
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parents:
168
diff
changeset
|
1684 { |
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Merge decoplan display for both GF and Buhlmann models.
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parents:
168
diff
changeset
|
1685 internal_deco_time [x] = 0; |
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
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168
diff
changeset
|
1686 internal_deco_depth[x] = 0; |
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
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168
diff
changeset
|
1687 } |
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Merge decoplan display for both GF and Buhlmann models.
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168
diff
changeset
|
1688 } |
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Merge decoplan display for both GF and Buhlmann models.
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168
diff
changeset
|
1689 |
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Merge decoplan display for both GF and Buhlmann models.
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168
diff
changeset
|
1690 ////////////////////////////////////////////////////////////////////////////// |
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168
diff
changeset
|
1691 // update_deco_table |
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168
diff
changeset
|
1692 // |
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Merge decoplan display for both GF and Buhlmann models.
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168
diff
changeset
|
1693 // Add 1 min to current stop. |
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168
diff
changeset
|
1694 // |
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Merge decoplan display for both GF and Buhlmann models.
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168
diff
changeset
|
1695 // Inputs: |
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Merge decoplan display for both GF and Buhlmann models.
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parents:
168
diff
changeset
|
1696 // temp_depth_limit = stop's depth, in meters. |
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Merge decoplan display for both GF and Buhlmann models.
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168
diff
changeset
|
1697 // In/Out: |
275
4310ab395dbe
Keep low_depth in float 32bits (w/o rounding) for a better stability.
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270
diff
changeset
|
1698 // internal_deco_depth[] : depth (in metres) of each stops. |
169
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Merge decoplan display for both GF and Buhlmann models.
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parents:
168
diff
changeset
|
1699 // internal_deco_time [] : time (in minutes) of each stops. |
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Merge decoplan display for both GF and Buhlmann models.
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parents:
168
diff
changeset
|
1700 // |
471 | 1701 static unsigned char update_deco_table() |
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
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parents:
168
diff
changeset
|
1702 { |
192 | 1703 overlay unsigned char x; |
247
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
1704 assert( temp_depth_limit < 128 ); // Can't be negativ (overflown). |
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
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parents:
241
diff
changeset
|
1705 assert( temp_depth_limit > 0 ); // No stop at surface... |
169
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Merge decoplan display for both GF and Buhlmann models.
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parents:
168
diff
changeset
|
1706 |
338 | 1707 for(x=0; x<NUM_STOPS; ++x) |
192 | 1708 { |
212 | 1709 // Make sure deco-stops are recorded in order: |
334
4ccdc72ec0e5
BUGFIX minor error in gas-switch algo (spurious surface decostop rarely added).
JeanDo
parents:
326
diff
changeset
|
1710 assert( !internal_deco_depth[x] || temp_depth_limit <= (internal_deco_depth[x]& 0x7F) ); |
212 | 1711 |
279
8514588eb6a2
Mark gas-switch stops for decoplans, displayed in yellow.
JeanDo
parents:
278
diff
changeset
|
1712 if( (internal_deco_depth[x] & 0x7F) == temp_depth_limit ) |
192 | 1713 { |
1714 // Do not overflow (max 255') | |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1715 if( internal_deco_time[x] < 255 ) |
192 | 1716 { |
1717 internal_deco_time[x]++; | |
471 | 1718 return 1; |
192 | 1719 } |
1720 // But store extra in the next stop... | |
169
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168
diff
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|
1721 } |
192 | 1722 |
169
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168
diff
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|
1723 if( internal_deco_depth[x] == 0 ) |
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168
diff
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|
1724 { |
192 | 1725 internal_deco_depth[x] = temp_depth_limit; |
279
8514588eb6a2
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278
diff
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|
1726 |
169
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168
diff
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|
1727 internal_deco_time[x] = 1; |
471 | 1728 return 1; |
169
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parents:
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diff
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|
1729 } |
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diff
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|
1730 } |
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diff
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|
1731 |
192 | 1732 // Can't store stops at more than 96m. |
1733 // Or stops at less that 3m too. | |
169
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diff
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|
1734 // Just do nothing with that... |
471 | 1735 return 0; |
167 | 1736 } |
116 | 1737 |
167 | 1738 ////////////////////////////////////////////////////////////////////////////// |
1739 // calc_gradient_factor | |
1740 // | |
165 | 1741 // optimized in v.101 (var_N2_a) |
116 | 1742 // new code in v.102 |
167 | 1743 // |
1744 static void calc_gradient_factor(void) | |
116 | 1745 { |
197 | 1746 overlay float gf; |
339 | 1747 overlay float N2 = pres_tissue_N2[char_O_gtissue_no]; |
1748 overlay float He = pres_tissue_He[char_O_gtissue_no]; | |
237 | 1749 |
338 | 1750 assert( char_O_gtissue_no < NUM_COMP ); |
237 | 1751 assert( 0.800 <= pres_respiration && pres_respiration < 14.0 ); |
197 | 1752 |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1753 // tissue > respiration (currently off-gasing) |
f555590f1419
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JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1754 // GF = 0% when respiration == tissue, ie. bubbles are at equilibrium. |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1755 // GF = 100% when respiration == limit. |
293
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
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parents:
292
diff
changeset
|
1756 temp_tissue = N2 + He; |
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
JeanDo
parents:
292
diff
changeset
|
1757 if( temp_tissue <= pres_respiration ) |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1758 gf = 0.0; |
197 | 1759 else |
1760 { | |
293
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
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parents:
292
diff
changeset
|
1761 overlay float limit = calc_lead_tissue_limit; |
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
JeanDo
parents:
292
diff
changeset
|
1762 // NOTE: in GF model, calc_lead_tissue_limit include already the |
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BUGFIX char_O_gradient_factor calculation in GF model.
JeanDo
parents:
292
diff
changeset
|
1763 // correction due to gradient factor. To compute the actual |
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
JeanDo
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292
diff
changeset
|
1764 // current GF, we need to (re-)compute the raw ambiant-pressure |
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
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292
diff
changeset
|
1765 // limit from the Bühlmann model. |
509 | 1766 if( char_I_deco_model != 0 ) |
293
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
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diff
changeset
|
1767 { |
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BUGFIX char_O_gradient_factor calculation in GF model.
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292
diff
changeset
|
1768 ci = char_O_gtissue_no; |
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
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292
diff
changeset
|
1769 read_buhlmann_coefficients(); |
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BUGFIX char_O_gradient_factor calculation in GF model.
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292
diff
changeset
|
1770 var_N2_a = (var_N2_a * N2 + var_He_a * He) / temp_tissue; |
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BUGFIX char_O_gradient_factor calculation in GF model.
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292
diff
changeset
|
1771 var_N2_b = (var_N2_b * N2 + var_He_b * He) / temp_tissue; |
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BUGFIX char_O_gradient_factor calculation in GF model.
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292
diff
changeset
|
1772 limit = (temp_tissue - var_N2_a) * var_N2_b; |
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BUGFIX char_O_gradient_factor calculation in GF model.
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292
diff
changeset
|
1773 } |
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
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diff
changeset
|
1774 |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1775 gf = (temp_tissue - pres_respiration) |
293
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
JeanDo
parents:
292
diff
changeset
|
1776 / (temp_tissue - limit) |
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
JeanDo
parents:
292
diff
changeset
|
1777 * 100.0; |
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
JeanDo
parents:
292
diff
changeset
|
1778 if( gf > 254.5 ) gf = 255.0; |
197 | 1779 if( gf < 0.0 ) gf = 0.0; |
1780 } | |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1781 char_O_gradient_factor = (unsigned char)(gf+0.5f); |
116 | 1782 |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1783 if( char_I_deco_model != 0 ) // calculate relative gradient factor |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1784 { |
197 | 1785 overlay float rgf; |
1786 | |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1787 if( low_depth < 3 ) |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1788 rgf = GF_high; |
197 | 1789 else |
1790 { | |
317 | 1791 overlay float temp1 = low_depth * METER_TO_BAR; |
197 | 1792 overlay float temp2 = pres_respiration - pres_surface; |
186 | 1793 |
197 | 1794 if (temp2 <= 0) |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1795 rgf = GF_high; |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1796 else if (temp2 >= temp1) |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1797 rgf = GF_low; |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1798 else |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1799 rgf = GF_low + (temp1 - temp2)/temp1*GF_delta; |
197 | 1800 } |
186 | 1801 |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1802 rgf = gf / rgf; // gf is already in percent |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1803 if( rgf < 0.0 ) rgf = 0.0; |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1804 if( rgf > 254.5 ) rgf = 255.0; |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1805 char_O_relative_gradient_GF = (unsigned char)(rgf+0.5f); |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1806 } // calc relative gradient factor |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1807 else |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1808 { |
186 | 1809 char_O_relative_gradient_GF = char_O_gradient_factor; |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1810 } |
167 | 1811 } |
116 | 1812 |
167 | 1813 ////////////////////////////////////////////////////////////////////////////// |
1814 // deco_calc_desaturation_time | |
1815 // | |
116 | 1816 // FIXED N2_ratio |
1817 // unchanged in v.101 | |
310
b20fc8c4ac92
Fix EAD/END display (not mm, m with a trailling space)
JeanDo
parents:
307
diff
changeset
|
1818 // Inputs: int_I_pres_surface, ppWater, char_I_desaturation_multiplier |
233 | 1819 // Outputs: int_O_desaturation_time, char_O_tissue_saturation[0..31] |
167 | 1820 // |
116 | 1821 void deco_calc_desaturation_time(void) |
1822 { | |
122
3003a8040b78
FIX again reset C data stack and frame pointer when entering C code.
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parents:
116
diff
changeset
|
1823 RESET_C_STACK |
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FIX again reset C data stack and frame pointer when entering C code.
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parents:
116
diff
changeset
|
1824 |
233 | 1825 assert( 800 < int_I_pres_surface && int_I_pres_surface < 1100 ); |
1826 assert( 0 < char_I_desaturation_multiplier && char_I_desaturation_multiplier <= 100 ); | |
1827 | |
237 | 1828 N2_ratio = 0.7902; // FIXED sum as stated in bühlmann |
233 | 1829 pres_surface = int_I_pres_surface * 0.001; |
310
b20fc8c4ac92
Fix EAD/END display (not mm, m with a trailling space)
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parents:
307
diff
changeset
|
1830 ppN2 = N2_ratio * (pres_surface - ppWater); |
126 | 1831 int_O_desaturation_time = 0; |
491
560764da0629
BUGFIX Surface desat factor missing for Interval planning in GF mode.
JeanDo
parents:
490
diff
changeset
|
1832 float_desaturation_multiplier = char_I_desaturation_multiplier * (0.01 * SURFACE_DESAT_FACTOR); |
233 | 1833 |
339 | 1834 for(ci=0; ci<NUM_COMP; ci++) |
126 | 1835 { |
251 | 1836 overlay unsigned short desat_time; // For a particular compartiment, in min. |
1837 overlay float temp1; | |
1838 overlay float temp2; | |
1839 overlay float temp3; | |
1840 overlay float temp4; | |
338 | 1841 |
509 | 1842 read_buhlmann_ht(); |
338 | 1843 |
126 | 1844 // saturation_time (for flight) and N2_saturation in multiples of halftime |
1845 // version v.100: 1.1 = 10 percent distance to totally clean (totally clean is not possible, would take infinite time ) | |
1846 // new in version v.101: 1.07 = 7 percent distance to totally clean (totally clean is not possible, would take infinite time ) | |
260
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BUGFIX bb13 : deco_calc_desaturation_time() should reset TBLPTR Upper register.
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parents:
258
diff
changeset
|
1847 // changes in v.101: 1.05 = 5 percent dist to totally clean is new desaturation point for display and NoFly calculations |
126 | 1848 // N2 |
339 | 1849 temp1 = 1.05 * ppN2 - pres_tissue_N2[ci]; |
1850 temp2 = ppN2 - pres_tissue_N2[ci]; | |
126 | 1851 if (temp2 >= 0.0) |
233 | 1852 temp1 = 0.0; |
126 | 1853 else |
1854 temp1 = temp1 / temp2; | |
711
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minor cleanups for CNS/NOAA bugfix.
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parents:
710
diff
changeset
|
1855 |
251 | 1856 if( 0.0 < temp1 && temp1 < 1.0 ) |
126 | 1857 { |
260
bde83cac971f
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258
diff
changeset
|
1858 // 0.6931 is ln(2), because the math function log() calculates with a base of e not 2 as requested. |
bde83cac971f
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258
diff
changeset
|
1859 // minus because log is negative. |
bde83cac971f
BUGFIX bb13 : deco_calc_desaturation_time() should reset TBLPTR Upper register.
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258
diff
changeset
|
1860 temp1 = log(1.0 - temp1) / -0.6931; // temp1 is the multiples of half times necessary. |
509 | 1861 temp2 = var_N2_ht * temp1 / float_desaturation_multiplier; // time necessary (in minutes ) for complete desaturation (see comment about 5 percent) , new in v.101: float_desaturation_multiplier |
260
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258
diff
changeset
|
1862 |
126 | 1863 } |
1864 else | |
1865 { | |
233 | 1866 temp1 = 0.0; |
1867 temp2 = 0.0; | |
126 | 1868 } |
116 | 1869 |
126 | 1870 // He |
339 | 1871 temp3 = 0.1 - pres_tissue_He[ci]; |
126 | 1872 if (temp3 >= 0.0) |
233 | 1873 temp3 = 0.0; |
126 | 1874 else |
339 | 1875 temp3 = - temp3 / pres_tissue_He[ci]; |
601
d1719622111e
Minor LLVM compatibility cleanups.
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parents:
581
diff
changeset
|
1876 |
251 | 1877 if( 0.0 < temp3 && temp3 < 1.0 ) |
711
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parents:
710
diff
changeset
|
1878 { |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1879 temp3 = log(1.0 - temp3) / -0.6931; // temp1 is the multiples of half times necessary. |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
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parents:
710
diff
changeset
|
1880 // 0.6931 is ln(2), because the math function log() calculates with a base of e not 2 as requested. |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1881 // minus because log is negative |
f555590f1419
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JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1882 temp4 = var_He_ht * temp3 / float_desaturation_multiplier; // time necessary (in minutes ) for "complete" desaturation, new in v.101 float_desaturation_multiplier |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
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parents:
710
diff
changeset
|
1883 } |
126 | 1884 else |
711
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minor cleanups for CNS/NOAA bugfix.
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parents:
710
diff
changeset
|
1885 { |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1886 temp3 = 0.0; |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1887 temp4 = 0.0; |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1888 } |
116 | 1889 |
126 | 1890 // saturation_time (for flight) |
1891 if (temp4 > temp2) | |
203 | 1892 desat_time = (unsigned short)temp4; |
126 | 1893 else |
203 | 1894 desat_time = (unsigned short)temp2; |
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1895 |
251 | 1896 if(desat_time > int_O_desaturation_time) |
1897 int_O_desaturation_time = desat_time; | |
116 | 1898 |
126 | 1899 // N2 saturation in multiples of halftime for display purposes |
339 | 1900 temp2 = temp1 * 20.0; // 0 = 1/8, 120 = 0, 249 = 8 |
1901 temp2 = temp2 + 80.0; // set center | |
126 | 1902 if (temp2 < 0.0) |
1903 temp2 = 0.0; | |
1904 if (temp2 > 255.0) | |
1905 temp2 = 255.0; | |
339 | 1906 char_O_tissue_N2_saturation[ci] = (char)temp2; |
233 | 1907 |
126 | 1908 // He saturation in multiples of halftime for display purposes |
339 | 1909 temp4 = temp3 * 20.0; // 0 = 1/8, 120 = 0, 249 = 8 |
1910 temp4 = temp4 + 80.0; // set center | |
126 | 1911 if (temp4 < 0.0) |
1912 temp4 = 0.0; | |
1913 if (temp4 > 255.0) | |
1914 temp4 = 255.0; | |
339 | 1915 char_O_tissue_He_saturation[ci] = (char)temp4; |
126 | 1916 } // for |
167 | 1917 } |
116 | 1918 |
167 | 1919 ////////////////////////////////////////////////////////////////////////////// |
1920 // calc_wo_deco_step_1_min | |
1921 // | |
116 | 1922 // FIXED N2 Ratio |
1923 // optimized in v.101 (...saturation_multiplier) | |
1924 // desaturation slowed down to 70,42% | |
167 | 1925 // |
1926 static void calc_wo_deco_step_1_min(void) | |
116 | 1927 { |
251 | 1928 assert( 800 < int_I_pres_surface && int_I_pres_surface < 1100 ); |
1929 assert( 800 < int_I_pres_respiration && int_I_pres_respiration < 1100 ); | |
1930 assert( 100 <= char_I_saturation_multiplier && char_I_saturation_multiplier < 200 ); | |
1931 assert( 0 < char_I_desaturation_multiplier && char_I_desaturation_multiplier <= 100 ); | |
1932 | |
126 | 1933 N2_ratio = 0.7902; // FIXED, sum lt. buehlmann |
368 | 1934 pres_respiration = pres_surface = int_I_pres_surface * 0.001; |
1935 ppN2 = N2_ratio * (pres_respiration - ppWater); | |
200 | 1936 ppHe = 0.0; |
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1937 float_desaturation_multiplier = char_I_desaturation_multiplier * (0.01 * SURFACE_DESAT_FACTOR); |
197 | 1938 float_saturation_multiplier = char_I_saturation_multiplier * 0.01; |
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1939 |
339 | 1940 calc_tissue(1); // update the pressure in the tissues N2/He in accordance with the new ambient pressure |
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1941 |
169
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1942 clear_deco_table(); |
200 | 1943 char_O_deco_status = 3; // surface new in v.102 : stays in surface state. |
126 | 1944 char_O_nullzeit = 0; |
168 | 1945 int_O_ascenttime = 0; |
323 | 1946 int_O_extra_ascenttime = 0; |
126 | 1947 calc_gradient_factor(); |
167 | 1948 } |
126 | 1949 |
167 | 1950 ////////////////////////////////////////////////////////////////////////////// |
368 | 1951 // calc_dive_interval |
1952 // | |
1953 // Prepare tissue for delay before the next dive simulation. | |
1954 // | |
1955 // Inputs: char_I_dive_interval == delay before dive (in 10' steps). | |
1956 // Outputs: pres_tissue_N2/He[], CNS_fraction | |
1957 // | |
1958 // Should be protected by deco_push_tissues_to_vault(), | |
1959 // deco_pull_tissues_from_vault() | |
1960 // | |
1961 // desaturation slowed down to 70,42%. | |
1962 // | |
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1963 static void calc_dive_interval(void) |
368 | 1964 { |
1965 overlay unsigned char t; | |
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1966 overlay unsigned char backup_model; |
368 | 1967 |
1968 //---- Initialize simulation parameters ---------------------------------- | |
1969 N2_ratio = 0.7902; // FIXED, sum lt. buehlmann | |
1970 pres_respiration = pres_surface = int_I_pres_surface * 0.001; | |
1971 ppN2 = N2_ratio * (pres_respiration - ppWater); | |
1972 ppHe = 0.0; | |
491
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1973 float_desaturation_multiplier = char_I_desaturation_multiplier * (0.01 * SURFACE_DESAT_FACTOR); |
368 | 1974 float_saturation_multiplier = char_I_saturation_multiplier * 0.01; |
1975 | |
568 | 1976 // Make sure SURFACE_DESAT_FACTOR is applied: |
491
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1977 backup_model = char_I_deco_model; |
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1978 char_I_deco_model = 0; |
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1979 |
368 | 1980 //---- Perform simulation ------------------------------------------------ |
1981 for(t=0; t<char_I_dive_interval; ++t) | |
1982 { | |
1983 calc_tissue(2); // period = 10min. | |
1984 CNS_fraction = 0.92587471 * CNS_fraction; // Half-time = 90min: (1/2)^(1/9) | |
1985 } | |
514 | 1986 assert( 0.0 <= CNS_fraction && CNS_fraction <= 2.56 ); |
1987 char_O_CNS_fraction = (unsigned char)(CNS_fraction * 100.0 + 0.5); | |
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1988 |
491
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1989 //---- Restore model ----------------------------------------------------- |
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1990 char_I_deco_model = backup_model; |
368 | 1991 } |
1992 | |
1993 ////////////////////////////////////////////////////////////////////////////// | |
167 | 1994 ////////////////////////////////////////////////////////////////////////////// |
1995 ////////////////////////////////// deco_hash ///////////////////////////////// | |
1996 ////////////////////////////////////////////////////////////////////////////// | |
1997 ////////////////////////////////////////////////////////////////////////////// | |
126 | 1998 |
184 | 1999 #ifndef CROSS_COMPILE |
116 | 2000 void deco_hash(void) |
2001 { | |
167 | 2002 overlay unsigned char md_i, md_j; // Loop index. |
2003 overlay unsigned char md_t; | |
2004 overlay unsigned char md_buffer[16]; | |
2005 overlay unsigned char md_temp; | |
203 | 2006 overlay unsigned short md_pointer; |
167 | 2007 |
122
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2008 RESET_C_STACK |
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2009 |
126 | 2010 // init |
164 | 2011 for(md_i=0;md_i<16;md_i++) |
126 | 2012 { |
2013 md_state[md_i] = 0; | |
164 | 2014 char_O_hash[md_i] = 0; |
126 | 2015 } // for md_i 16 |
116 | 2016 |
126 | 2017 _asm |
167 | 2018 movlw 0x01 // md_pi address. |
2019 movwf TBLPTRU,0 | |
2020 movlw 0x7E | |
2021 movwf TBLPTRH,0 | |
2022 movlw 0x00 | |
2023 movwf TBLPTRL,0 | |
126 | 2024 _endasm; |
165 | 2025 md_i = 0; |
2026 do { | |
126 | 2027 _asm |
2028 TBLRDPOSTINC | |
2029 movff TABLAT,md_temp | |
2030 _endasm | |
165 | 2031 md_pi_subst[md_i++] = md_temp; |
2032 } while( md_i != 0 ); | |
2033 | |
126 | 2034 _asm |
167 | 2035 movlw 0x00 |
2036 movwf TBLPTRU,0 | |
2037 movlw 0x00 | |
2038 movwf TBLPTRH,0 | |
2039 movlw 0x00 | |
2040 movwf TBLPTRL,0 | |
126 | 2041 _endasm |
167 | 2042 |
126 | 2043 // cycle buffers |
2044 for (md_pointer=0x0000;md_pointer<0x17f3;md_pointer++) | |
2045 { | |
2046 md_t = 0; | |
2047 for (md_i=0;md_i<16;md_i++) | |
2048 { | |
2049 if(md_pointer == 9) | |
164 | 2050 md_temp = char_O_hash[md_i]; |
126 | 2051 else |
2052 { | |
2053 _asm | |
167 | 2054 TBLRDPOSTINC |
2055 movff TABLAT,md_temp | |
126 | 2056 _endasm |
2057 } // else | |
167 | 2058 |
2059 md_buffer[md_i] = md_temp; | |
186 | 2060 md_state[md_i+16] = md_temp; |
2061 md_state[md_i+32] = (unsigned char)(md_temp ^ md_state[md_i]); | |
126 | 2062 } // for md_i 16 |
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|
2063 |
126 | 2064 for (md_i=0;md_i<18;md_i++) |
2065 { | |
2066 for (md_j=0;md_j<48;md_j++) | |
2067 { | |
167 | 2068 md_state[md_j] ^= md_pi_subst[md_t]; |
126 | 2069 md_t = md_state[md_j]; |
2070 } // for md_j 48 | |
2071 md_t = (unsigned char)(md_t+1); | |
2072 } // for md_i 18 | |
164 | 2073 md_t = char_O_hash[15]; |
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|
2074 |
126 | 2075 for (md_i=0;md_i<16;md_i++) |
2076 { | |
167 | 2077 char_O_hash[md_i] ^= md_pi_subst[(md_buffer[md_i] ^ md_t)]; |
164 | 2078 md_t = char_O_hash[md_i]; |
126 | 2079 } // for md_i 16 |
2080 } // for md_pointer | |
116 | 2081 } // void deco_hash(void) |
184 | 2082 #endif |
116 | 2083 |
167 | 2084 ////////////////////////////////////////////////////////////////////////////// |
2085 // deco_clear_CNS_fraction | |
2086 // | |
116 | 2087 // new in v.101 |
167 | 2088 // |
116 | 2089 void deco_clear_CNS_fraction(void) |
2090 { | |
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2091 RESET_C_STACK |
237 | 2092 |
126 | 2093 CNS_fraction = 0.0; |
2094 char_O_CNS_fraction = 0; | |
167 | 2095 } |
116 | 2096 |
167 | 2097 ////////////////////////////////////////////////////////////////////////////// |
2098 // deco_calc_CNS_fraction | |
2099 // | |
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2100 // Input: char_I_actual_ppO2 : Current condition (in decibars). |
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2101 // char_I_step_is_1min : use 1min or 10min steps instead of 2sec. |
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2102 // CNS_fraction : velue before period. |
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2103 // Output: CNS_fraction, char_O_CNS_fraction |
167 | 2104 // |
116 | 2105 void deco_calc_CNS_fraction(void) |
2106 { | |
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|
2107 overlay float time_factor = 1.0f; |
126 | 2108 RESET_C_STACK |
167 | 2109 |
471 | 2110 assert( 0.0 <= CNS_fraction && CNS_fraction <= 2.56 ); |
237 | 2111 assert( char_I_actual_ppO2 > 15 ); |
2112 | |
439
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2113 if( char_I_step_is_1min == 1 ) |
292 | 2114 time_factor = 30.0f; |
439
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2115 else if( char_I_step_is_1min == 2 ) |
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|
2116 time_factor = 300.0f; |
710 | 2117 //------------------------------------------------------------------------ |
2118 // Don't increase CNS below 0.5 bar, but keep it steady. | |
126 | 2119 if (char_I_actual_ppO2 < 50) |
292 | 2120 ; // no changes |
710 | 2121 //------------------------------------------------------------------------ |
2122 // Below (and including) 1.60 bar | |
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|
2123 else if (char_I_actual_ppO2 < 61) |
710 | 2124 CNS_fraction += time_factor/(-533.07 * char_I_actual_ppO2 + 54000.0); |
711
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diff
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|
2125 else if (char_I_actual_ppO2 < 71) |
710 | 2126 CNS_fraction += time_factor/(-444.22 * char_I_actual_ppO2 + 48600.0); |
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diff
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|
2127 else if (char_I_actual_ppO2 < 81) |
710 | 2128 CNS_fraction += time_factor/(-355.38 * char_I_actual_ppO2 + 42300.0); |
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diff
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|
2129 else if (char_I_actual_ppO2 < 91) |
710 | 2130 CNS_fraction += time_factor/(-266.53 * char_I_actual_ppO2 + 35100.0); |
711
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diff
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|
2131 else if (char_I_actual_ppO2 < 111) |
710 | 2132 CNS_fraction += time_factor/(-177.69 * char_I_actual_ppO2 + 27000.0); |
711
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diff
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|
2133 else if (char_I_actual_ppO2 < 152) |
710 | 2134 CNS_fraction += time_factor/( -88.84 * char_I_actual_ppO2 + 17100.0); |
711
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diff
changeset
|
2135 else if (char_I_actual_ppO2 < 167) |
710 | 2136 CNS_fraction += time_factor/(-222.11 * char_I_actual_ppO2 + 37350.0); |
2137 //------------------------------------------------------------------------ | |
2138 // Arieli et all.(2002): Modeling pulmonary and CNS O2 toxicity: | |
2139 // J Appl Physiol 92: 248–256, 2002, doi:10.1152/japplphysiol.00434.2001 | |
2140 // Formula (A1) based on value for 1.55 and c=20 | |
2141 // example calculation: Sqrt((1.7/1.55)^20)*0.000404 | |
711
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minor cleanups for CNS/NOAA bugfix.
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parents:
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diff
changeset
|
2142 else if (char_I_actual_ppO2 < 172) |
f555590f1419
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diff
changeset
|
2143 CNS_fraction += time_factor*0.00102; |
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710
diff
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|
2144 else if (char_I_actual_ppO2 < 177) |
292 | 2145 CNS_fraction += time_factor*0.00136; |
711
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diff
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|
2146 else if (char_I_actual_ppO2 < 182) |
292 | 2147 CNS_fraction += time_factor*0.00180; |
711
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diff
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|
2148 else if (char_I_actual_ppO2 < 187) |
292 | 2149 CNS_fraction += time_factor*0.00237; |
711
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diff
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|
2150 else if (char_I_actual_ppO2 < 192) |
292 | 2151 CNS_fraction += time_factor*0.00310; |
711
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|
2152 else if (char_I_actual_ppO2 < 198) |
292 | 2153 CNS_fraction += time_factor*0.00401; |
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|
2154 else if (char_I_actual_ppO2 < 203) |
292 | 2155 CNS_fraction += time_factor*0.00517; |
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|
2156 else if (char_I_actual_ppO2 < 233) |
292 | 2157 CNS_fraction += time_factor*0.0209; |
126 | 2158 else |
292 | 2159 CNS_fraction += time_factor*0.0482; // value for 2.5 |
116 | 2160 |
514 | 2161 if( CNS_fraction > 2.5 ) |
439
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2162 CNS_fraction = 2.55; |
514 | 2163 if( CNS_fraction < 0.0 ) |
126 | 2164 CNS_fraction = 0.0; |
2165 | |
443
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2166 char_O_CNS_fraction = (unsigned char)(100.0 * CNS_fraction + 0.5); |
167 | 2167 } |
116 | 2168 |
167 | 2169 ////////////////////////////////////////////////////////////////////////////// |
439
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2170 // deco_calc_CNS_planning |
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2171 // |
511
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2172 // Compute CNS during predicted ascent. |
488 | 2173 // |
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|
2174 // Note: Needs a call to deco_push_tissues_to_vault(), |
488 | 2175 // deco_pull_tissues_from_vault() to avoid trashing everything... |
2176 // | |
2177 // Input: CNS_fraction, char_O_deco_time[], char_O_deco_depth[] | |
2178 // Output: CNS_fraction, char_O_CNS_fraction | |
2179 // | |
439
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2180 void deco_calc_CNS_planning(void) |
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2181 { |
490
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|
2182 overlay unsigned char backup_gas_last_depth; |
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diff
changeset
|
2183 overlay unsigned char backup_gas_last_used; |
68aa097f0062
BUGFIX (minor) deco_calc_CNS_planning should save ppO2 and gas switch history.
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|
2184 overlay unsigned short backup_gas_delay; |
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diff
changeset
|
2185 overlay unsigned short backup_dive_mins; |
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diff
changeset
|
2186 overlay unsigned char backup_actual_ppO2; |
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|
2187 |
439
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2188 RESET_C_STACK |
490
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|
2189 |
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2190 // Backup state machine |
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|
2191 backup_gas_last_depth = sim_gas_last_depth; |
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BUGFIX (minor) deco_calc_CNS_planning should save ppO2 and gas switch history.
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diff
changeset
|
2192 backup_gas_last_used = sim_gas_last_used; |
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diff
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|
2193 backup_dive_mins = sim_dive_mins; |
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BUGFIX (minor) deco_calc_CNS_planning should save ppO2 and gas switch history.
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|
2194 backup_actual_ppO2 = char_I_actual_ppO2; |
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2195 |
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2196 // Uses 1min CNS period: |
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2197 char_I_step_is_1min = 1; |
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2198 |
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2199 //---- Retrieve bottom Gas used, and set variables. |
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2200 sim_gas_last_used = char_I_first_gas; |
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2201 sim_gas_last_depth = 0; // Surface gas marker. |
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2202 gas_switch_set(); // Sets initial calc_N2/He_ratio |
439
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2203 |
743 | 2204 //---- CCR mode : do the full CNS at once -------------------------------- |
439
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2205 if( char_I_const_ppO2 != 0 ) |
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2206 { |
443
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2207 overlay unsigned short t; // Needs 16bits here ! |
439
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2208 char_I_actual_ppO2 = char_I_const_ppO2; |
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2209 for(t=0; t<int_O_ascenttime; ++t) |
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2210 deco_calc_CNS_fraction(); |
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2211 } |
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2212 else //---- OC mode : have to follow all gas switches... ----------------- |
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2213 { |
443
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2214 overlay unsigned char i = 0; // Decostop loop counter |
439
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2215 overlay float actual_ppO2; |
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2216 overlay unsigned char time, t; |
563 | 2217 overlay unsigned char deepest_first = (read_custom_function(54) == 0); |
439
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2218 |
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2219 //---- Ascent to surface delay |
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2220 // NOTE: count as if time is spent with bottom pressure, |
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2221 // AND the bottom gas |
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2222 actual_ppO2 = (pres_surface + char_I_bottom_depth * METER_TO_BAR) |
439
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2223 * (1.0 - calc_N2_ratio - calc_He_ratio); |
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2224 if( actual_ppO2 < 0.0 ) actual_ppO2 = 0.0; |
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2225 if( actual_ppO2 > 2.50 ) actual_ppO2 = 2.55; |
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2226 char_I_actual_ppO2 = (unsigned char)(100.0 * actual_ppO2 + 0.5); |
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2227 |
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2228 // Ascent time (rounded up): |
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|
2229 time = (unsigned char)(0.1 * char_I_bottom_depth + 0.5); |
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2230 |
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2231 for(t=0; t<time; ++t) |
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2232 { |
439
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2233 deco_calc_CNS_fraction(); |
490
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2234 sim_dive_mins++; |
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2235 } |
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2236 |
563 | 2237 //---- Do all further stops ------------------------------------------ |
439
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2238 for(i=0; i<NUM_STOPS; ++i) |
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2239 { |
563 | 2240 overlay unsigned char switch_gas; |
2241 | |
2242 //---- Get next stop, possibly in reverse order ------------------ | |
2243 if( deepest_first ) | |
2244 { | |
2245 time = char_O_deco_time[i]; | |
2246 temp_depth_limit = char_O_deco_depth[i]; | |
2247 } | |
2248 else | |
2249 { | |
2250 time = char_O_deco_time[(NUM_STOPS-1)-i]; | |
2251 temp_depth_limit = char_O_deco_depth[(NUM_STOPS-1)-i]; | |
2252 } | |
2253 if( time == 0 ) continue; | |
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2254 |
563 | 2255 //---- Gas Switch ? ---------------------------------------------- |
2256 switch_gas = temp_depth_limit & 0x80; // Switch flag. | |
2257 temp_depth_limit &= 0x7F; // True stop depth. | |
2258 | |
2259 if( switch_gas ) | |
2260 { | |
2261 gas_switch_deepest(); | |
2262 gas_switch_set(); | |
2263 } | |
2264 | |
2265 //---- Convert Depth and N2_ratio to ppO2 ------------------------ | |
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2266 actual_ppO2 = (pres_surface + temp_depth_limit * METER_TO_BAR) |
439
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2267 * (1.0 - calc_N2_ratio - calc_He_ratio); |
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2268 if( actual_ppO2 < 0.0 ) actual_ppO2 = 0.0; |
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2269 if( actual_ppO2 > 2.50 ) actual_ppO2 = 2.55; |
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2270 char_I_actual_ppO2 = (unsigned char)(100.0 * actual_ppO2 + 0.5); |
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2271 |
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2272 //---- Apply the stop |
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2273 for(t=0; t<time; ++t) |
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2274 { |
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2275 deco_calc_CNS_fraction(); |
490
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2276 sim_dive_mins++; |
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2277 } |
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2278 } |
488 | 2279 } |
2280 | |
563 | 2281 //---- Back to normal mode... -------------------------------------------- |
488 | 2282 char_I_step_is_1min = 0; |
490
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2283 sim_gas_last_depth = backup_gas_last_depth; |
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2284 sim_gas_last_used = backup_gas_last_used; |
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2285 sim_dive_mins = backup_dive_mins; |
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2286 char_I_actual_ppO2 = backup_actual_ppO2; |
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2287 } |
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2288 |
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2289 ////////////////////////////////////////////////////////////////////////////// |
167 | 2290 // deco_calc_CNS_decrease_15min |
2291 // | |
116 | 2292 // new in v.101 |
167 | 2293 // |
116 | 2294 // calculates the half time of 90 minutes in 6 steps of 15 min |
200 | 2295 // (Used in sleepmode, for low battery mode). |
167 | 2296 // |
116 | 2297 // Output: char_O_CNS_fraction |
2298 // Uses and Updates: CNS_fraction | |
167 | 2299 // |
116 | 2300 void deco_calc_CNS_decrease_15min(void) |
2301 { | |
237 | 2302 RESET_C_STACK |
514 | 2303 assert( 0.0 <= CNS_fraction && CNS_fraction <= 2.56 ); |
237 | 2304 |
126 | 2305 CNS_fraction = 0.890899 * CNS_fraction; |
514 | 2306 char_O_CNS_fraction = (unsigned char)(CNS_fraction * 100.0 + 0.5); |
167 | 2307 } |
116 | 2308 |
167 | 2309 ////////////////////////////////////////////////////////////////////////////// |
2310 // deco_calc_percentage | |
2311 // | |
116 | 2312 // new in v.101 |
167 | 2313 // |
116 | 2314 // calculates int_I_temp * char_I_temp / 100 |
2315 // output is int_I_temp | |
200 | 2316 // |
2317 // Used to compute NoFly remaining time. | |
222
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2318 // |
116 | 2319 void deco_calc_percentage(void) |
2320 { | |
122
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|
2321 RESET_C_STACK |
222
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2322 |
237 | 2323 assert( 60 <= char_I_temp && char_I_temp <= 100 ); |
564 | 2324 assert( int_I_temp < 5760 ); // Less than 4 days = 96h... |
237 | 2325 |
222
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2326 int_I_temp = (unsigned short)(((float)int_I_temp * (float)char_I_temp) * 0.01 ); |
237 | 2327 |
554
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2328 assert( int_I_temp < 5760 ); // Less than 96h too... |
222
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2329 } |
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2330 |
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2331 |
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2332 ////////////////////////////////////////////////////////////////////////////// |
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2333 // deco_gas_volumes |
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2334 // |
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2335 // new in v.111 |
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2336 // |
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2337 // calculates volumes for each gas. |
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2338 // |
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2339 // Input: char_I_bottom_depth, char_I_bottom_time for planned dive. |
240
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2340 // Gas list. |
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2341 // char_I_first_gas is the bottom gas. |
222
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2342 // decoplan (char_O_deco_depth, char_O_deco_time). |
234
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2343 // CF#54 == TRUE if shallowest stop first. |
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2344 // CF#56 == bottom liters/minutes (5 .. 50) or bar/min. |
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2345 // CF#57 == deco liters/minutes (5 .. 50) or bar/min. |
224 | 2346 // Output: int_O_gas_volumes[0..4] in litters * 0.1 |
222
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2347 // |
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2348 void deco_gas_volumes(void) |
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2349 { |
338 | 2350 overlay float volumes[NUM_GAS]; |
478
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2351 overlay float bottom_usage, deco_usage; |
234
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2352 overlay unsigned char i, deepest_first; |
646 | 2353 overlay unsigned char gas, depth; |
222
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2354 RESET_C_STACK |
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2355 |
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2356 //---- initialize with bottom consumption -------------------------------- |
338 | 2357 for(i=0; i<NUM_GAS; ++i) // Nothing yet... |
240
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2358 volumes[i] = 0.0; |
222
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2359 |
338 | 2360 assert(1 <= char_I_first_gas && char_I_first_gas <= NUM_GAS); |
241 | 2361 gas = char_I_first_gas - 1; |
2362 | |
478
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2363 bottom_usage = (float) read_custom_function(56); |
580
32448d5ca734
BUGFIX: GasVolume should not count bottom time/depth in CCR mode.
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2364 if( char_I_const_ppO2 == 0 && bottom_usage > 0.0 ) |
265 | 2365 volumes[gas] |
2366 = (char_I_bottom_depth*0.1 + 1.0) // Use Psurface = 1.0 bar. | |
2367 * char_I_bottom_time // in minutes. | |
2368 * bottom_usage; // In liter/minutes. | |
579
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BUGFIX: GasVolumes should check for a gas switch before the first stop.
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2369 |
222
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2370 //---- Ascent usage ------------------------------------------------------ |
234
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2371 deepest_first = read_custom_function(54) == 0; |
511
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2372 deco_usage = (float) read_custom_function(57); // In liter/minutes. |
222
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2373 |
646 | 2374 depth = char_I_bottom_depth; |
222
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2375 |
338 | 2376 for(i=0; i<NUM_STOPS; ++i) |
222
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|
2377 { |
658
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2378 overlay unsigned char newDepth, time; |
234
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
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233
diff
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|
2379 |
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BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
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233
diff
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|
2380 // Manage stops in reverse order (CF#54) |
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BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
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233
diff
changeset
|
2381 if( deepest_first ) |
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
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233
diff
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|
2382 { |
241 | 2383 time = char_O_deco_time[i]; |
234
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
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233
diff
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|
2384 if( time == 0 ) break; // End of table: done. |
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233
diff
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|
2385 |
658
75dc320f4681
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646
diff
changeset
|
2386 newDepth = char_O_deco_depth[i] & 0x7F; |
234
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
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233
diff
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|
2387 } |
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BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
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233
diff
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|
2388 else |
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BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
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233
diff
changeset
|
2389 { |
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233
diff
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|
2390 time = char_O_deco_time[31-i]; |
658
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2391 if( time == 0 ) continue; // not yet: still search table. |
234
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diff
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|
2392 |
658
75dc320f4681
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646
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|
2393 newDepth = char_O_deco_depth[31-i] & 0x7F; |
234
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233
diff
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|
2394 } |
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diff
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|
2395 |
658
75dc320f4681
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diff
changeset
|
2396 //---- Gas switch during this step ----------------------------------- |
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
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218
diff
changeset
|
2397 { |
658
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2398 overlay unsigned char newGas = 0; |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2399 overlay unsigned char newStop = 0; // NO CHANGE yet |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2400 overlay unsigned char j; |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2401 |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
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646
diff
changeset
|
2402 for(j=0; j<NUM_GAS; ++j) |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2403 { |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2404 // Skip gas without changing depth: |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2405 if( ! char_I_deco_gas_change[j] ) |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2406 continue; |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
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646
diff
changeset
|
2407 // Select gas changed between [newDepth .. depth] |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
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parents:
646
diff
changeset
|
2408 if( newDepth <= char_I_deco_gas_change[j] |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
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646
diff
changeset
|
2409 && char_I_deco_gas_change[j] <= depth ) |
646 | 2410 { |
658
75dc320f4681
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parents:
646
diff
changeset
|
2411 // Keep the DEEPEST gas in that range: |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
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parents:
646
diff
changeset
|
2412 // Note: that = means changing gas at BEGINNING of this stop. |
75dc320f4681
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parents:
646
diff
changeset
|
2413 if( char_I_deco_gas_change[j] >= newStop ) |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
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parents:
646
diff
changeset
|
2414 { |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
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diff
changeset
|
2415 newGas = j; |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
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parents:
646
diff
changeset
|
2416 newStop = char_I_deco_gas_change[j]; |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
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parents:
646
diff
changeset
|
2417 } |
646 | 2418 } |
658
75dc320f4681
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parents:
646
diff
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|
2419 } |
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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parents:
218
diff
changeset
|
2420 |
658
75dc320f4681
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parents:
646
diff
changeset
|
2421 if( newStop ) // Did we find something ? |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
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parents:
646
diff
changeset
|
2422 { |
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parents:
646
diff
changeset
|
2423 // usage BEFORE gas switch (if any), at 10m/min : |
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parents:
646
diff
changeset
|
2424 if( deco_usage > 0.0 && depth > newStop ) |
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parents:
646
diff
changeset
|
2425 // Plus usage during ascent to the next stop, at 10m/min. |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
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646
diff
changeset
|
2426 volumes[gas] += ((depth+newStop)*0.05 + 1.0) // average depth --> bar. |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
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parents:
646
diff
changeset
|
2427 * (depth-newStop)*0.1 // metre --> min |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
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parents:
646
diff
changeset
|
2428 * deco_usage; |
646 | 2429 |
658
75dc320f4681
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646
diff
changeset
|
2430 // Do gas switch: |
75dc320f4681
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parents:
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diff
changeset
|
2431 gas = newGas; |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
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parents:
646
diff
changeset
|
2432 depth = newStop; |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
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parents:
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diff
changeset
|
2433 } |
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parents:
646
diff
changeset
|
2434 } |
646 | 2435 |
2436 // usage AFTER gas switch (if any), at 10m/min : | |
2437 if( depth > newDepth ) | |
2438 volumes[gas] += ((depth+newDepth)*0.05 + 1.0) // average depth --> bar. | |
2439 * (depth-newDepth)*0.1 // metre --> min | |
2440 * deco_usage; | |
2441 | |
2442 // Do stop: | |
2443 depth = newDepth; | |
2444 | |
2445 // Usage at stop: | |
478
fd8266b511cc
New SAC (CF56/CF57) in 5..50 l/min range (no more decimal).
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parents:
471
diff
changeset
|
2446 if( deco_usage > 0.0 ) |
265 | 2447 volumes[gas] += (depth*0.1 + 1.0) // depth --> bar. |
2448 * time // in minutes. | |
646 | 2449 * deco_usage; // in xxx / min @ 1bar. |
265 | 2450 else |
2451 volumes[gas] = 65535.0; | |
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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218
diff
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|
2452 } |
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Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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diff
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|
2453 |
646 | 2454 // From last stop to surface |
2455 if( deco_usage > 0.0 ) | |
2456 volumes[gas] += (depth*0.05 + 1.0) // avg depth --> bar. | |
2457 * depth * 0.1 // time to surface, in minutes. | |
2458 * deco_usage; // in xxx / min @ 1bar. | |
2459 | |
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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diff
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|
2460 //---- convert results for the ASM interface ----------------------------- |
338 | 2461 for(i=0; i<NUM_GAS; ++i) |
441
4826dd98514b
NEW: Decoplanner OC volumes in liters (or bars), up to 65000.
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439
diff
changeset
|
2462 if( volumes[i] > 65534.0 ) |
224 | 2463 int_O_gas_volumes[i] = 65535; |
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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218
diff
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|
2464 else |
441
4826dd98514b
NEW: Decoplanner OC volumes in liters (or bars), up to 65000.
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diff
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|
2465 int_O_gas_volumes[i] = (unsigned short)(volumes[i] + 0.5); |
116 | 2466 } |
2467 | |
167 | 2468 ////////////////////////////////////////////////////////////////////////////// |
2469 | |
116 | 2470 void deco_push_tissues_to_vault(void) |
2471 { | |
167 | 2472 overlay unsigned char x; |
122
3003a8040b78
FIX again reset C data stack and frame pointer when entering C code.
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parents:
116
diff
changeset
|
2473 RESET_C_STACK |
167 | 2474 |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
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parents:
710
diff
changeset
|
2475 cns_vault = CNS_fraction; |
697 | 2476 low_depth_vault = low_depth; |
2477 | |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
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parents:
710
diff
changeset
|
2478 for (x=0;x<NUM_COMP;x++) |
339 | 2479 { |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
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parents:
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diff
changeset
|
2480 pres_tissue_N2_vault[x] = pres_tissue_N2[x]; |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
2481 pres_tissue_He_vault[x] = pres_tissue_He[x]; |
339 | 2482 } |
116 | 2483 } |
167 | 2484 |
116 | 2485 void deco_pull_tissues_from_vault(void) |
2486 { | |
167 | 2487 overlay unsigned char x; |
122
3003a8040b78
FIX again reset C data stack and frame pointer when entering C code.
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116
diff
changeset
|
2488 RESET_C_STACK |
167 | 2489 |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
2490 for (x=0; x<NUM_COMP; x++) |
339 | 2491 { |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
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parents:
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diff
changeset
|
2492 pres_tissue_N2[x] = pres_tissue_N2_vault[x]; |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
2493 pres_tissue_He[x] = pres_tissue_He_vault[x]; |
339 | 2494 } |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
2495 |
292 | 2496 // Restore both CNS variable, too. |
2497 CNS_fraction = cns_vault; | |
514 | 2498 char_O_CNS_fraction = (unsigned char)(CNS_fraction * 100.0 + 0.5); |
697 | 2499 |
2500 // GF history too: | |
2501 low_depth = low_depth_vault; | |
2502 locked_GF_step = GF_delta / low_depth; | |
116 | 2503 } |
2504 | |
167 | 2505 ////////////////////////////////////////////////////////////////////////////// |
2506 // | |
184 | 2507 #ifndef CROSS_COMPILE |
2508 void main() {} | |
2509 #endif |