Mercurial > public > mk2
annotate code_part1/OSTC_code_c_part2/p2_deco.c @ 791:a652b0ff4dcf
NEW: CF74: Battery Timeout [min] - Battery symbol will blink if the OSTC was
longer in active mode (since the last _full_ charge) then CF74
| author | heinrichsweikamp |
|---|---|
| date | Thu, 28 Aug 2014 20:18:49 +0200 |
| parents | 0d1a82cdb3dc |
| children | 2a0e5d884fc3 |
| rev | line source |
|---|---|
| 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! |
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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. |
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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. |
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75 // 2011/04/10: [jDG] Use timer TMR3 to limit loops in calc_hauptroutine_calc_deco(). |
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76 // 2011/04/15: [jDG] Store low_depth in 32bits (w/o rounding), for a better stability. |
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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. |
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79 // 2011/05/02: [jDG] Added "Future TTS" function (CF58). |
| 338 | 80 // 2011/05/17: [jDG] Various cleanups. |
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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). |
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90 // 2013/05/08: [jDG] A. Salm remark: NOAA tables for CNS are in ATA, not bar. |
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91 // 2013/10/22: [mH] Remove CF55 stuff |
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92 // 2013/12/21: [jDG] Fix CNS calculation in decoplan w/o marked gas switch |
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93 // 2014/06/16: [jDG] Fix Helium diluant. Fix volumes with many travel mix. |
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94 // 2014/06/29: [mH] Compute int_O_ceiling |
| 116 | 95 // |
| 167 | 96 // TODO: |
| 97 // + Allow to abort MD2 calculation (have to restart next time). | |
| 98 // | |
| 99 // Literature: | |
| 200 | 100 // Bühlmann, Albert: Tauchmedizin; 4. Auflage [2002]; |
| 116 | 101 // 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 |
| 102 // Morrison, Stuart; 2000; DIY DECOMPRESSION; http://www.lizardland.co.uk/DIYDeco.html | |
| 103 // Balthasar, Steffen; Dekompressionstheorie I: Neo Haldane Modelle; http://www.txfreak.de/dekompressionstheorie_1.pdf | |
| 104 // Baker, Erik C.; Clearing Up The Confusion About "Deep Stops" | |
| 105 // Baker, Erik C.; Understanding M-values; http://www.txfreak.de/understanding_m-values.pdf | |
| 167 | 106 // |
| 107 // | |
| 116 | 108 |
| 109 // ********************* | |
| 110 // ** I N C L U D E S ** | |
| 111 // ********************* | |
| 112 #include <math.h> | |
| 167 | 113 |
| 192 | 114 // *********************************************** |
| 115 // ** V A R I A B L E S D E F I N I T I O N S ** | |
| 116 // *********************************************** | |
| 117 | |
| 118 #include "p2_definitions.h" | |
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119 #define TEST_MAIN |
| 509 | 120 #include "../OSTC_code_asm_part1/shared_definitions.h" |
| 192 | 121 |
| 200 | 122 // Water vapour partial pressure in the lumb. |
| 527 | 123 #define ppWater 0.0627 |
| 317 | 124 #define METER_TO_BAR 0.09985 |
| 125 #define BAR_TO_METER 10.0150 // (1.0/METER_TO_BAR) | |
| 200 | 126 |
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127 // Surface security factor |
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128 #define SURFACE_DESAT_FACTOR 0.7042 |
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129 |
| 167 | 130 // ************************* |
| 131 // ** P R O T O T Y P E S ** | |
| 132 // ************************* | |
| 133 | |
| 134 static void calc_hauptroutine(void); | |
| 135 static void calc_nullzeit(void); | |
| 136 | |
| 192 | 137 static void calc_tissue(PARAMETER unsigned char period); |
| 258 | 138 static void calc_limit(void); |
| 192 | 139 |
| 167 | 140 static void clear_tissue(void); |
| 141 static void calc_ascenttime(void); | |
| 142 static void update_startvalues(void); | |
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143 static void clear_deco_table(void); |
| 471 | 144 static unsigned char update_deco_table(void); |
| 192 | 145 |
| 146 static void sim_tissue(PARAMETER unsigned char period); | |
| 147 static void sim_limit(PARAMETER float GF_current); | |
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148 static void sim_extra_time(void); |
| 368 | 149 static void calc_dive_interval(void); |
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150 |
| 167 | 151 static void calc_gradient_factor(void); |
| 152 static void calc_wo_deco_step_1_min(void); | |
| 153 | |
| 154 static void calc_hauptroutine_data_input(void); | |
| 155 static void calc_hauptroutine_update_tissues(void); | |
| 156 static void calc_hauptroutine_calc_deco(void); | |
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157 static void sim_ascent_to_first_stop(void); |
| 167 | 158 |
| 241 | 159 static unsigned char gas_switch_deepest(void); |
| 160 static void gas_switch_set(void); | |
| 217 | 161 |
| 241 | 162 static unsigned char calc_nextdecodepth(void); |
| 116 | 163 |
| 200 | 164 //---- Bank 4 parameters ----------------------------------------------------- |
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165 #ifndef UNIX |
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166 # pragma udata bank4=0x400 |
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167 #endif |
| 116 | 168 |
| 169 static float GF_low; | |
| 170 static float GF_high; | |
| 171 static float GF_delta; | |
| 192 | 172 static float locked_GF_step; // GF_delta / low_depth |
| 173 | |
| 174 static unsigned char temp_depth_limit; | |
| 695 | 175 float low_depth; // Depth of deepest stop |
| 171 | 176 |
| 757 | 177 static unsigned char internal_deco_time [NUM_STOPS]; |
| 338 | 178 static unsigned char internal_deco_depth[NUM_STOPS]; |
| 757 | 179 static unsigned char internal_deco_gas [NUM_STOPS]; |
| 116 | 180 |
| 181 static float cns_vault; | |
| 697 | 182 static float low_depth_vault; |
| 339 | 183 static float pres_tissue_N2_vault[NUM_COMP]; |
| 184 static float pres_tissue_He_vault[NUM_COMP]; | |
| 116 | 185 |
| 163 | 186 //---- Bank 5 parameters ----------------------------------------------------- |
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187 #ifndef UNIX |
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188 # pragma udata bank5=0x500 |
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189 #endif |
| 163 | 190 |
| 167 | 191 static unsigned char ci; |
| 116 | 192 static float pres_respiration; |
| 193 static float pres_surface; | |
| 194 static float temp_deco; | |
| 236 | 195 static float ppN2; |
| 200 | 196 static float ppHe; |
| 116 | 197 static float temp_tissue; |
| 200 | 198 static float N2_ratio; // Breathed gas nitrogen ratio. |
| 199 static float He_ratio; // Breathed gas helium ratio. | |
| 200 static float var_N2_a; // Bühlmann a, for current N2 tissue. | |
| 201 static float var_N2_b; // Bühlmann b, for current N2 tissue. | |
| 202 static float var_He_a; // Bühlmann a, for current He tissue. | |
| 203 static float var_He_b; // Bühlmann b, for current He tissue. | |
| 204 static float var_N2_e; // Exposition, for current N2 tissue. | |
| 205 static float var_He_e; // Exposition, for current He tissue. | |
| 509 | 206 static float var_N2_ht; // Half-time for current N2 tissue. |
| 207 static float var_He_ht; // Half-time for current N2 tissue. | |
| 116 | 208 |
| 338 | 209 static float pres_diluent; // new in v.101 |
| 210 static float const_ppO2; // new in v.101 | |
| 116 | 211 |
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212 static unsigned char sim_gas_last_depth; // Depth of last used gas, to detected a gas switch. |
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213 static unsigned char sim_gas_last_used; // Number of last used gas, to detected a gas switch. |
| 203 | 214 static unsigned short sim_dive_mins; // Simulated dive time. |
| 200 | 215 static float calc_N2_ratio; // Simulated (switched) nitrogen ratio. |
| 216 static float calc_He_ratio; // Simulated (switched) helium ratio. | |
| 217 static float CNS_fraction; // new in v.101 | |
| 218 static float float_saturation_multiplier; // new in v.101 | |
| 219 static float float_desaturation_multiplier; // new in v.101 | |
| 338 | 220 static float float_deco_distance; // new in v.101 |
| 167 | 221 |
| 338 | 222 static unsigned char deco_gas_change[NUM_GAS]; // new in v.109 |
| 167 | 223 |
| 757 | 224 // Simulation context: used to predict ascent. |
| 225 unsigned char sim_lead_tissue_no; // Leading compatiment number. | |
| 226 float sim_lead_tissue_limit; // Buhlmann tolerated pressure. | |
| 227 | |
| 228 // Real context: what we are doing now. | |
| 229 static float calc_lead_tissue_limit; // | |
| 230 | |
| 163 | 231 //---- Bank 6 parameters ----------------------------------------------------- |
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232 #ifndef UNIX |
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233 # pragma udata bank6=0x600 |
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234 #endif |
| 116 | 235 |
| 339 | 236 float pres_tissue_N2[NUM_COMP]; |
| 237 float pres_tissue_He[NUM_COMP]; | |
| 509 | 238 float sim_pres_tissue_N2[NUM_COMP]; // 16 floats = 64 bytes. |
| 239 float sim_pres_tissue_He[NUM_COMP]; // 16 floats = 64 bytes. | |
| 116 | 240 |
| 163 | 241 //---- Bank 7 parameters ----------------------------------------------------- |
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242 #ifndef UNIX |
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243 # pragma udata bank7=0x700 |
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244 #endif |
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245 |
| 509 | 246 // EMPTY ... |
| 116 | 247 |
| 163 | 248 //---- Bank 8 parameters ----------------------------------------------------- |
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249 #ifndef UNIX |
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250 # pragma udata bank8=0x800 |
| 163 | 251 |
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252 static char md_pi_subst[256]; |
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253 # define C_STACK md_pi_subst // Overlay C-code data stack here, too. |
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254 |
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255 #endif |
| 116 | 256 |
| 163 | 257 //---- Bank 9 parameters ----------------------------------------------------- |
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258 #ifndef UNIX |
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259 # pragma udata bank9=0x900 |
| 116 | 260 |
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261 static char md_state[48]; // DONT MOVE : has to be at the beginning of bank 9 for the asm code!!! |
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262 #endif |
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263 |
| 116 | 264 |
| 167 | 265 ////////////////////////////////////////////////////////////////////////////// |
| 266 ////////////////////////////////////////////////////////////////////////////// | |
| 267 ///////////////////////////// THE LOOKUP TABLES ////////////////////////////// | |
| 268 ////////////////////////////////////////////////////////////////////////////// | |
| 269 ////////////////////////////////////////////////////////////////////////////// | |
| 270 // | |
| 271 // End of PROM code is 17F00, So push tables on PROM top... | |
| 272 // | |
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273 #ifndef UNIX |
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274 # pragma romdata buhlmann_tables = 0x017B00 // Needs to be in UPPER bank. |
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275 #endif |
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276 |
| 167 | 277 #include "p2_tables.romdata" // new table for deco_main_v.101 (var_N2_a modified) |
| 116 | 278 |
| 167 | 279 // Magic table to compute the MD2 HASH |
| 280 // | |
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281 #ifndef UNIX |
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282 # pragma romdata hash_tables = 0x017E00 // Address fixed by ASM access... |
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283 rom const rom unsigned short md_pi[] = |
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284 { |
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285 0x292E, 0x43C9, 0xA2D8, 0x7C01, 0x3D36, 0x54A1, 0xECF0, 0x0613 |
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286 , 0x62A7, 0x05F3, 0xC0C7, 0x738C, 0x9893, 0x2BD9, 0xBC4C, 0x82CA |
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287 , 0x1E9B, 0x573C, 0xFDD4, 0xE016, 0x6742, 0x6F18, 0x8A17, 0xE512 |
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288 , 0xBE4E, 0xC4D6, 0xDA9E, 0xDE49, 0xA0FB, 0xF58E, 0xBB2F, 0xEE7A |
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289 , 0xA968, 0x7991, 0x15B2, 0x073F, 0x94C2, 0x1089, 0x0B22, 0x5F21 |
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290 , 0x807F, 0x5D9A, 0x5A90, 0x3227, 0x353E, 0xCCE7, 0xBFF7, 0x9703 |
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291 , 0xFF19, 0x30B3, 0x48A5, 0xB5D1, 0xD75E, 0x922A, 0xAC56, 0xAAC6 |
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292 , 0x4FB8, 0x38D2, 0x96A4, 0x7DB6, 0x76FC, 0x6BE2, 0x9C74, 0x04F1 |
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293 , 0x459D, 0x7059, 0x6471, 0x8720, 0x865B, 0xCF65, 0xE62D, 0xA802 |
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294 , 0x1B60, 0x25AD, 0xAEB0, 0xB9F6, 0x1C46, 0x6169, 0x3440, 0x7E0F |
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295 , 0x5547, 0xA323, 0xDD51, 0xAF3A, 0xC35C, 0xF9CE, 0xBAC5, 0xEA26 |
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296 , 0x2C53, 0x0D6E, 0x8528, 0x8409, 0xD3DF, 0xCDF4, 0x4181, 0x4D52 |
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297 , 0x6ADC, 0x37C8, 0x6CC1, 0xABFA, 0x24E1, 0x7B08, 0x0CBD, 0xB14A |
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298 , 0x7888, 0x958B, 0xE363, 0xE86D, 0xE9CB, 0xD5FE, 0x3B00, 0x1D39 |
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299 , 0xF2EF, 0xB70E, 0x6658, 0xD0E4, 0xA677, 0x72F8, 0xEB75, 0x4B0A |
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300 , 0x3144, 0x50B4, 0x8FED, 0x1F1A, 0xDB99, 0x8D33, 0x9F11, 0x8314 |
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301 }; |
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302 #endif |
| 116 | 303 |
| 167 | 304 ////////////////////////////////////////////////////////////////////////////// |
| 305 ////////////////////////////////////////////////////////////////////////////// | |
| 306 ////////////////////////////// THE SUBROUTINES /////////////////////////////// | |
| 307 ////////////////////////////////////////////////////////////////////////////// | |
| 308 ////////////////////////////////////////////////////////////////////////////// | |
| 309 // | |
| 116 | 310 // all new in v.102 |
| 311 // moved from 0x0D000 to 0x0C000 in v.108 | |
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312 #ifndef UNIX |
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313 # pragma code p2_deco = 0x0C000 |
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314 #endif |
| 116 | 315 |
| 167 | 316 ////////////////////////////////////////////////////////////////////////////// |
| 317 ////////////////////////////////////////////////////////////////////////////// | |
| 318 /////////////////////// U T I L I T I E S ///////////////////////////////// | |
| 319 ////////////////////////////////////////////////////////////////////////////// | |
| 320 ////////////////////////////////////////////////////////////////////////////// | |
| 321 | |
| 235 | 322 ////////////////////////////////////////////////////////////////////////////// |
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323 // Bump to blue-screen when an assert is wrong |
| 235 | 324 #ifdef __DEBUG |
| 325 void assert_failed(PARAMETER short int line) | |
| 326 { | |
| 681 | 327 extern void DISP_resetdebugger(void); |
| 235 | 328 extern unsigned short temp10; |
| 329 | |
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330 temp10 = line; // Show source line number as stack depth. |
| 681 | 331 DISP_resetdebugger(); |
| 235 | 332 } |
| 333 #endif | |
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334 |
| 235 | 335 ////////////////////////////////////////////////////////////////////////////// |
| 336 // When calling C code from ASM context, the data stack pointer and | |
| 337 // frames should be reset. Bank8 is used by stack, when not doing hashing. | |
| 338 | |
| 339 #ifdef CROSS_COMPILE | |
| 340 # define RESET_C_STACK | |
| 341 #else | |
| 342 # ifdef __DEBUG | |
| 343 # define RESET_C_STACK fillDataStack(); | |
| 344 void fillDataStack(void) | |
| 345 { | |
| 346 _asm | |
| 347 LFSR 1,C_STACK | |
| 348 MOVLW 0xCC | |
| 349 loop: MOVWF POSTINC1,0 | |
| 350 TSTFSZ FSR1L,0 | |
| 351 BRA loop | |
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352 |
| 235 | 353 LFSR 1,C_STACK |
| 354 LFSR 2,C_STACK | |
| 355 _endasm | |
| 356 } | |
| 357 # else | |
| 358 # define RESET_C_STACK \ | |
| 359 _asm \ | |
| 360 LFSR 1, C_STACK \ | |
| 361 LFSR 2, C_STACK \ | |
| 362 _endasm | |
| 363 # endif | |
| 364 #endif | |
| 365 | |
| 366 ////////////////////////////////////////////////////////////////////////////// | |
|
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367 // Read CF values from the C code. |
| 235 | 368 |
| 488 | 369 #ifdef CROSS_COMPILE |
| 370 // Full description of the OSTC EEPROM map, including CF values. | |
| 371 # include "OSTC_eeprom.h" | |
| 372 #endif | |
| 373 | |
| 203 | 374 static short read_custom_function(PARAMETER unsigned char cf) |
| 167 | 375 { |
| 184 | 376 #ifdef CROSS_COMPILE |
| 743 | 377 return READ_CF_MACRO(cf); |
| 184 | 378 #else |
| 167 | 379 extern unsigned char hi, lo; |
| 380 extern void getcustom15(); | |
| 381 _asm | |
| 382 movff cf,WREG | |
| 383 call getcustom15,0 | |
| 384 movff lo,PRODL | |
| 385 movff hi,PRODH | |
| 386 _endasm | |
| 184 | 387 #endif |
| 167 | 388 } |
| 389 | |
| 390 ////////////////////////////////////////////////////////////////////////////// | |
|
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391 // Fast subroutine to read RTC timer 3. |
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392 // Note: result is in 1/32 of msecs. |
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393 static unsigned short tmr3(void) |
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394 { |
| 261 | 395 #ifndef CROSS_COMPILE |
|
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396 _asm |
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397 movff 0xfb2,PRODL // TMR3L |
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398 movff 0xfb3,PRODH // TMR3H |
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399 _endasm // result in PRODH:PRODL. |
| 261 | 400 #else |
| 401 return 0; | |
| 402 #endif | |
|
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403 } |
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404 |
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405 ////////////////////////////////////////////////////////////////////////////// |
| 258 | 406 // read buhlmann tables A and B for compatriment ci |
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407 // |
| 258 | 408 static void read_buhlmann_coefficients(void) |
| 165 | 409 { |
| 184 | 410 #ifndef CROSS_COMPILE |
| 167 | 411 // Note: we don't use far rom pointer, because the |
| 338 | 412 // 24 bits is too complex, hence we have to set |
| 167 | 413 // the UPPER page ourself... |
| 414 // --> Set zero if tables are moved to lower pages ! | |
| 415 _asm | |
| 416 movlw 1 | |
| 417 movwf TBLPTRU,0 | |
| 418 _endasm | |
| 184 | 419 #endif |
| 258 | 420 |
| 564 | 421 assert( ci < NUM_COMP ); |
| 338 | 422 |
| 423 // Use an interleaved array (AoS) to access coefficients with a | |
| 424 // single addressing. | |
| 425 { | |
| 426 overlay rom const float* ptr = &buhlmann_ab[4*ci]; | |
| 427 var_N2_a = *ptr++; | |
| 428 var_N2_b = *ptr++; | |
| 429 var_He_a = *ptr++; | |
| 430 var_He_b = *ptr++; | |
| 431 } | |
| 258 | 432 } |
| 433 | |
| 434 ////////////////////////////////////////////////////////////////////////////// | |
| 435 // read buhlmann tables for compatriment ci | |
| 436 // If period == 0 : 2sec interval | |
| 437 // 1 : 1 min interval | |
| 438 // 2 : 10 min interval. | |
| 439 static void read_buhlmann_times(PARAMETER char period) | |
| 440 { | |
| 441 #ifndef CROSS_COMPILE | |
| 442 // Note: we don't use far rom pointer, because the | |
| 443 // 24 bits is to complex, hence we have to set | |
| 444 // the UPPER page ourself... | |
| 445 // --> Set zero if tables are moved to lower pages ! | |
| 446 _asm | |
| 447 movlw 1 | |
| 448 movwf TBLPTRU,0 | |
| 449 _endasm | |
| 450 #endif | |
| 338 | 451 |
| 564 | 452 assert( ci < NUM_COMP ); |
| 258 | 453 |
| 165 | 454 // Integration intervals. |
| 167 | 455 switch(period) |
| 165 | 456 { |
| 457 case 0: //---- 2 sec ----------------------------------------------------- | |
| 338 | 458 { |
| 459 overlay rom const float* ptr = &e2secs[2*ci]; | |
| 460 var_N2_e = *ptr++; | |
| 461 var_He_e = *ptr++; | |
| 462 } | |
| 165 | 463 break; |
| 464 | |
| 465 case 1: //---- 1 min ----------------------------------------------------- | |
| 338 | 466 { |
| 467 overlay rom const float* ptr = &e1min[2*ci]; | |
| 468 var_N2_e = *ptr++; | |
| 469 var_He_e = *ptr++; | |
| 470 } | |
| 165 | 471 break; |
| 472 | |
| 473 case 2: //---- 10 min ---------------------------------------------------- | |
| 338 | 474 { |
| 475 overlay rom const float* ptr = &e10min[2*ci]; | |
| 476 var_N2_e = *ptr++; | |
| 477 var_He_e = *ptr++; | |
| 478 } | |
| 165 | 479 break; |
| 197 | 480 |
| 481 default: | |
| 527 | 482 assert(0); // Never go there... |
| 165 | 483 } |
| 484 } | |
| 485 | |
| 486 ////////////////////////////////////////////////////////////////////////////// | |
| 509 | 487 // read buhlmann tables for compatriment ci |
|
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|
488 // |
| 509 | 489 static void read_buhlmann_ht(void) |
| 490 { | |
| 491 | |
| 492 #ifndef CROSS_COMPILE | |
| 493 // Note: we don't use far rom pointer, because the | |
| 494 // 24 bits is to complex, hence we have to set | |
| 495 // the UPPER page ourself... | |
| 496 // --> Set zero if tables are moved to lower pages ! | |
| 497 _asm | |
| 498 movlw 1 | |
| 499 movwf TBLPTRU,0 | |
| 500 _endasm | |
| 501 #endif | |
| 502 | |
| 564 | 503 assert( ci < NUM_COMP ); |
| 509 | 504 { |
| 505 overlay rom const float* ptr = &buhlmann_ht[2*ci]; | |
| 506 var_N2_ht = *ptr++; | |
| 507 var_He_ht = *ptr++; | |
|
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508 } |
| 509 | 509 |
| 510 assert( 4.0 <= var_N2_ht && var_N2_ht <= 635.0 ); | |
| 511 assert( 1.5099 <= var_He_ht && var_He_ht <= 240.03 ); | |
| 512 } | |
| 513 | |
| 514 ////////////////////////////////////////////////////////////////////////////// | |
|
340
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BUGFIX save negativ temperatures in logbook (bbbug #6)
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515 // calc_nextdecodepth |
| 165 | 516 // |
| 116 | 517 // new in v.102 |
| 165 | 518 // |
| 116 | 519 // INPUT, changing during dive: |
| 509 | 520 // temp_deco |
| 192 | 521 // low_depth |
| 167 | 522 // |
| 116 | 523 // INPUT, fixed during dive: |
| 167 | 524 // pres_surface |
| 525 // GF_delta | |
| 526 // GF_high | |
| 527 // GF_low | |
| 171 | 528 // char_I_depth_last_deco |
| 167 | 529 // float_deco_distance |
| 530 // | |
| 241 | 531 // RETURN TRUE iff a stop is needed. |
| 532 // | |
| 116 | 533 // OUTPUT |
| 171 | 534 // locked_GF_step |
| 167 | 535 // temp_depth_limt |
| 192 | 536 // low_depth |
| 167 | 537 // |
| 241 | 538 static unsigned char calc_nextdecodepth(void) |
| 167 | 539 { |
| 241 | 540 //--- Max ascent speed --------------------------------------------------- |
| 541 // Recompute leading gas limit, at current depth: | |
| 317 | 542 overlay float depth = (temp_deco - pres_surface) * BAR_TO_METER; |
| 241 | 543 |
| 544 // At most, ascent 1 minute, at 10m/min == 10.0 m. | |
| 302 | 545 overlay float min_depth = (depth > 10.0) ? (depth - 10.0) : 0.0; |
|
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|
546 |
| 241 | 547 // Do we need to stop at current depth ? |
| 548 overlay unsigned char need_stop = 0; | |
| 549 | |
| 550 assert( depth >= -0.2 ); // Allow for 200mbar of weather change. | |
| 551 | |
| 212 | 552 //---- ZH-L16 + GRADIENT FACTOR model ------------------------------------ |
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553 if( char_I_deco_model != 0 ) |
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|
554 { |
| 562 | 555 overlay unsigned char first_stop = 0; |
| 556 overlay float p; | |
| 557 | |
| 567 | 558 sim_limit( GF_low ); |
| 562 | 559 p = sim_lead_tissue_limit - pres_surface; |
| 695 | 560 p *= BAR_TO_METER; |
| 562 | 561 if( p <= 0.0f ) |
| 562 goto no_deco_stop; // We can surface directly... | |
|
512
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BUGFIX Spurious stop order when simulating deadly fast ascent.
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563 |
| 695 | 564 // Store the deepest point needing a deco stop as the LOW reference for GF. |
| 565 // NOTE: following stops will be validated using this LOW-HIGH gf scale, | |
| 566 // so if we want to keep coherency, we should not validate this stop | |
| 567 // yet, but apply the search to it, as for all the following stops afterward. | |
| 568 if( p > low_depth ) | |
| 569 { | |
| 570 low_depth = p; | |
| 571 locked_GF_step = GF_delta / low_depth; | |
| 572 } | |
| 573 | |
| 562 | 574 if( p < min_depth ) |
| 575 goto no_deco_stop; // First stop is higher than 1' ascent. | |
|
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576 |
| 695 | 577 // Round to multiple of 3m. |
| 578 first_stop = 3 * (short)(0.9995f + p*0.333333f); | |
| 562 | 579 assert( first_stop < 128 ); |
| 580 | |
| 581 // Apply correction for the shallowest stop. | |
| 582 if( first_stop == 3 ) // new in v104 | |
| 583 first_stop = char_I_depth_last_deco; // Use last 3m..6m instead. | |
| 171 | 584 |
| 562 | 585 // We have a stop candidate. |
| 586 // But maybe ascending to the next stop will diminish the constraint, | |
| 587 // because the GF might decrease more than the preassure gradient... | |
| 588 while(first_stop > 0) | |
| 589 { | |
| 590 overlay unsigned char next_stop; // Next depth (0..90m) | |
| 171 | 591 |
| 562 | 592 // Check max speed, or reaching surface. |
| 593 if( first_stop <= min_depth ) | |
| 594 goto no_deco_stop; | |
| 171 | 595 |
| 562 | 596 if( first_stop <= char_I_depth_last_deco ) // new in v104 |
| 597 next_stop = 0; | |
| 598 else if( first_stop == 6 ) | |
| 599 next_stop = char_I_depth_last_deco; | |
| 600 else | |
| 601 next_stop = first_stop - 3; // Index of next (upper) stop. | |
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602 |
| 562 | 603 // Total preassure at the new stop candidate: |
| 695 | 604 p = next_stop * METER_TO_BAR |
|
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605 + pres_surface; |
| 167 | 606 |
| 695 | 607 // Recompute limit for this new stop: |
| 608 if( !low_depth || next_stop > low_depth ) | |
| 609 sim_limit( GF_low ); | |
| 610 else | |
| 611 sim_limit( GF_high - next_stop * locked_GF_step ); | |
| 192 | 612 |
| 695 | 613 // Check upper limit (lowest ambiant pressure tolerated): |
| 614 if( sim_lead_tissue_limit >= p ) | |
| 615 goto deco_stop_found; // Ascent to next_stop forbiden. | |
| 562 | 616 |
| 617 // Else, validate that stop and loop... | |
| 618 first_stop = next_stop; | |
| 619 } | |
| 171 | 620 |
| 562 | 621 no_deco_stop: |
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622 temp_depth_limit = min_depth; |
| 562 | 623 goto done; |
| 212 | 624 |
| 695 | 625 deco_stop_found: |
| 562 | 626 // next stop is the last validated depth found, aka first_stop |
| 627 need_stop = 1; // Hit. | |
| 628 temp_depth_limit = first_stop; // Stop depth, in meter. | |
| 629 | |
| 630 done: | |
| 631 ; | |
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632 } |
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633 else //---- ZH-L16 model ------------------------------------------------- |
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634 { |
| 192 | 635 overlay float pres_gradient; |
| 636 | |
|
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637 // Original model |
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638 // optimized in v.101 |
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639 // char_I_depth_last_deco included in v.101 |
| 116 | 640 |
| 192 | 641 // Compute sim_lead_tissue_limit too, but just once. |
| 642 sim_limit(1.0); | |
| 643 | |
|
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644 pres_gradient = sim_lead_tissue_limit - pres_surface; |
|
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|
645 if (pres_gradient >= 0) |
|
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|
646 { |
|
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diff
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|
647 pres_gradient *= BAR_TO_METER/3; // Bar --> stop number; |
|
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parents:
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diff
changeset
|
648 temp_depth_limit = 3 * (short) (pres_gradient + 0.99); // --> metre : depth for deco |
| 241 | 649 need_stop = 1; // Hit. |
| 650 | |
| 651 // Implement last stop at 4m/5m/6m... | |
|
711
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minor cleanups for CNS/NOAA bugfix.
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parents:
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|
652 if( temp_depth_limit == 3 ) |
|
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minor cleanups for CNS/NOAA bugfix.
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653 temp_depth_limit = char_I_depth_last_deco; |
|
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|
654 } |
|
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diff
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|
655 else |
|
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diff
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|
656 temp_depth_limit = 0; |
|
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|
657 } |
| 212 | 658 |
| 217 | 659 //---- Check gas change -------------------------------------------------- |
| 241 | 660 need_stop |= gas_switch_deepest(); // Update temp_depth_limit if there is a change, |
| 661 | |
| 662 return need_stop; | |
| 167 | 663 } |
| 116 | 664 |
| 167 | 665 ////////////////////////////////////////////////////////////////////////////// |
|
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666 // copy_deco_table |
| 167 | 667 // |
|
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668 // Buffer the stops, once computed, so we can continue to display them |
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669 // while computing the next set. |
| 167 | 670 // |
|
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671 static void copy_deco_table(void) |
| 116 | 672 { |
|
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673 // Copy depth of the first (deepest) stop, because when reversing |
|
711
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674 // order, it will be hard to find... |
|
766
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|
675 char_O_first_deco_depth = internal_deco_depth[0]; |
|
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676 char_O_first_deco_time = internal_deco_time [0]; |
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677 |
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678 if( read_custom_function(54) & 1 ) //---- Should we reverse table ? ------ |
|
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679 { |
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680 overlay unsigned char x, y; |
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681 |
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682 //---- First: search the first non-null depth |
| 339 | 683 for(x=(NUM_STOPS-1); x != 0; --x) |
|
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684 if( internal_deco_depth[x] != 0 ) break; |
| 116 | 685 |
|
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686 //---- Second: copy to output table (in reverse order) |
| 338 | 687 for(y=0; y<NUM_STOPS; y++, --x) |
|
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688 { |
|
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689 char_O_deco_depth[y] = internal_deco_depth[x]; |
|
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690 char_O_deco_time_for_log[y] = internal_deco_time [x]; |
|
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691 char_O_deco_time [y] = internal_deco_time [x]; |
| 757 | 692 char_O_deco_gas [y] = internal_deco_gas [x]; |
|
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693 |
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694 // Stop only once the last transfer is done. |
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695 if( x == 0 ) break; |
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696 } |
| 116 | 697 |
|
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|
698 //---- Third: fill table end with null |
| 339 | 699 for(y++; y<NUM_STOPS; y++) |
|
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700 { |
|
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701 char_O_deco_time [y] = 0; |
|
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702 char_O_deco_depth[y] = 0; |
|
630
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diff
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|
703 char_O_deco_time_for_log[y] = 0; |
| 757 | 704 char_O_deco_gas [y] = 0; |
|
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705 } |
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706 } |
|
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707 else //---- Straight copy ------------------------------------------------ |
|
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708 { |
|
630
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|
709 overlay unsigned char x, y; |
| 167 | 710 |
| 339 | 711 for(x=0; x<NUM_STOPS; x++) |
|
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712 { |
|
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|
713 char_O_deco_depth[x] = internal_deco_depth[x]; |
|
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714 char_O_deco_time [x] = internal_deco_time [x]; |
| 757 | 715 char_O_deco_gas [x] = internal_deco_gas [x]; |
|
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|
716 } |
|
630
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|
717 |
|
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|
718 //Now fill the char_O_deco_time_for_log array |
|
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719 //---- First: search the first non-null depth |
|
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|
720 for(x=(NUM_STOPS-1); x != 0; --x) |
|
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|
721 if( internal_deco_depth[x] != 0 ) break; |
|
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|
722 |
|
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|
723 //---- Second: copy to output table (in reverse order) |
|
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|
724 for(y=0; y<NUM_STOPS; y++, --x) |
|
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parents:
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diff
changeset
|
725 { |
|
633
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heinrichsweikamp
parents:
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diff
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|
726 char_O_deco_time_for_log[y] = internal_deco_time [x]; |
|
630
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|
727 |
|
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|
728 // Stop only once the last transfer is done. |
|
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diff
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|
729 if( x == 0 ) break; |
|
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changeset
|
730 } |
|
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|
731 |
|
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diff
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|
732 //---- Third: fill table end with null |
|
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diff
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|
733 for(y++; y<NUM_STOPS; y++) |
|
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parents:
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|
734 { |
|
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|
735 char_O_deco_time_for_log [y] = 0; |
|
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diff
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|
736 } |
|
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|
737 } |
| 167 | 738 } |
| 116 | 739 |
| 167 | 740 ////////////////////////////////////////////////////////////////////////////// |
| 116 | 741 // temp_tissue_safety // |
| 167 | 742 // |
| 116 | 743 // outsourced in v.102 |
| 167 | 744 // |
| 745 // Apply safety factors for brand ZH-L16 model. | |
| 746 // | |
| 747 static void temp_tissue_safety(void) | |
| 116 | 748 { |
| 197 | 749 assert( 0.0 < float_desaturation_multiplier && float_desaturation_multiplier <= 1.0 ); |
| 750 assert( 1.0 <= float_saturation_multiplier && float_saturation_multiplier <= 2.0 ); | |
| 751 | |
|
711
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minor cleanups for CNS/NOAA bugfix.
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diff
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|
752 if( char_I_deco_model == 0 ) |
|
f555590f1419
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diff
changeset
|
753 { |
|
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parents:
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diff
changeset
|
754 if( temp_tissue < 0.0 ) |
|
f555590f1419
minor cleanups for CNS/NOAA bugfix.
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parents:
710
diff
changeset
|
755 temp_tissue *= float_desaturation_multiplier; |
|
f555590f1419
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parents:
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diff
changeset
|
756 else |
|
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JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
757 temp_tissue *= float_saturation_multiplier; |
|
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minor cleanups for CNS/NOAA bugfix.
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parents:
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diff
changeset
|
758 } |
| 167 | 759 } |
| 116 | 760 |
| 167 | 761 ////////////////////////////////////////////////////////////////////////////// |
| 762 ////////////////////////////////////////////////////////////////////////////// | |
| 116 | 763 // ** THE JUMP-IN CODE ** |
| 764 // ** for the asm code ** | |
| 167 | 765 ////////////////////////////////////////////////////////////////////////////// |
| 766 ////////////////////////////////////////////////////////////////////////////// | |
|
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|
767 |
| 167 | 768 ////////////////////////////////////////////////////////////////////////////// |
|
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|
769 // Called every 2 seconds during diving. |
|
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|
770 // update tissues every time. |
| 184 | 771 // |
|
169
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|
772 // Every 6 seconds (or slower when TTS > 16): |
|
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|
773 // - update deco table (char_O_deco_time/depth) with new values. |
|
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|
774 // - update ascent time, |
|
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|
775 // - set status to zero (so we can check there is new results). |
|
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|
776 // |
| 116 | 777 void deco_calc_hauptroutine(void) |
| 778 { | |
|
122
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|
779 RESET_C_STACK |
| 116 | 780 calc_hauptroutine(); |
| 781 int_O_desaturation_time = 65535; | |
| 782 } | |
| 783 | |
| 167 | 784 ////////////////////////////////////////////////////////////////////////////// |
| 184 | 785 // Reset decompression model: |
| 786 // + Set all tissues to equilibrium with Air at ambient pressure. | |
| 787 // + Reset last stop to 0m | |
| 788 // + Reset all model output. | |
| 116 | 789 void deco_clear_tissue(void) |
| 790 { | |
|
122
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|
791 RESET_C_STACK |
| 116 | 792 clear_tissue(); |
| 793 } | |
| 794 | |
| 167 | 795 ////////////////////////////////////////////////////////////////////////////// |
| 278 | 796 // Called every 1 min during decoplanning. |
| 797 // Update tissues for 1 min. | |
| 798 // | |
| 799 void deco_calc_tissue(void) | |
| 800 { | |
| 801 RESET_C_STACK | |
| 802 calc_hauptroutine_update_tissues(); | |
|
711
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|
803 } |
| 278 | 804 |
| 805 ////////////////////////////////////////////////////////////////////////////// | |
| 167 | 806 |
| 116 | 807 void deco_calc_wo_deco_step_1_min(void) |
| 808 { | |
|
122
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|
809 RESET_C_STACK |
| 116 | 810 calc_wo_deco_step_1_min(); |
| 811 deco_calc_desaturation_time(); | |
| 812 } | |
| 813 | |
| 167 | 814 ////////////////////////////////////////////////////////////////////////////// |
| 815 | |
| 368 | 816 void deco_calc_dive_interval(void) |
| 817 { | |
| 818 RESET_C_STACK | |
| 819 calc_dive_interval(); | |
| 820 } | |
| 821 | |
| 241 | 822 ////////////////////////////////////////////////////////////////////////////// |
| 823 // Find current gas in the list (if any). | |
|
711
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|
824 // |
| 513 | 825 // Input: char_I_current_gas = 1..6 |
| 241 | 826 // |
| 513 | 827 // Output: sim_gas_last_depth = 0..5, temp_depth_limit. |
| 241 | 828 // |
| 829 static void gas_switch_find_current(void) | |
| 830 { | |
| 513 | 831 assert( 0 < char_I_current_gas && char_I_current_gas <= (NUM_GAS+1) ); |
|
247
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
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|
832 |
| 388 | 833 if( char_I_current_gas <= NUM_GAS ) // Gas1..Gas5 |
|
353
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|
834 { |
| 388 | 835 sim_gas_last_used = char_I_current_gas; |
| 836 | |
| 837 // Note: if current is first gas, we must find it, but not set | |
| 838 // last depth change to surface. | |
| 839 if( char_I_deco_gas_change[sim_gas_last_used-1] ) | |
| 840 sim_gas_last_depth = char_I_deco_gas_change[sim_gas_last_used-1]; | |
| 241 | 841 } |
| 388 | 842 else |
| 843 sim_gas_last_used = 0; // Gas 6 = manual set | |
| 241 | 844 } |
| 845 | |
| 167 | 846 ////////////////////////////////////////////////////////////////////////////// |
| 217 | 847 // Find deepest available gas. |
|
711
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diff
changeset
|
848 // |
| 241 | 849 // Input: temp_depth_limit, |
| 850 // deco_gas_change[] | |
|
766
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diff
changeset
|
851 // sim_gas_depth_used, sim_dive_mins. |
| 212 | 852 // |
| 241 | 853 // RETURNS TRUE if a stop is needed for gas switch. |
| 854 // | |
|
766
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BUGFIX: CNS calculation in decoplan should track gas (no marked changes anymore)
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diff
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|
855 // Output: temp_depth_limit, sim_gas_depth_used IFF the is a switch. |
| 212 | 856 // |
|
766
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|
857 // NOTE: might be called from bottom (when sim_gas_depth_used |
|
3b1af9891019
BUGFIX: CNS calculation in decoplan should track gas (no marked changes anymore)
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858 // is null), or during the ascent to make sure we are not passing a |
| 241 | 859 // stop (in which case both can be already set). |
| 860 // | |
| 861 static unsigned char gas_switch_deepest(void) | |
| 201 | 862 { |
| 241 | 863 overlay unsigned char switch_deco = 0, switch_last = 0; |
| 201 | 864 |
| 865 if (char_I_const_ppO2 == 0) | |
| 866 { | |
| 225 | 867 overlay unsigned char j; |
| 868 | |
| 241 | 869 // Loop over all enabled gas, to find the deepest one, |
|
340
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BUGFIX save negativ temperatures in logbook (bbbug #6)
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870 // above last used gas, but below temp_depth_limit. |
| 338 | 871 for(j=0; j<NUM_GAS; ++j) |
| 225 | 872 { |
| 241 | 873 // Gas not (yet) allowed ? Skip ! |
| 874 if( temp_depth_limit > deco_gas_change[j] ) | |
| 875 continue; | |
| 876 | |
|
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877 // Gas deeper (or equal) than the current one ? Skip ! |
| 241 | 878 if( sim_gas_last_depth && deco_gas_change[j] >= sim_gas_last_depth ) |
| 879 continue; | |
| 880 | |
| 881 // First, or deeper ? | |
|
247
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BUGFIX Count gas switch delay down during ascent (bug bb26)
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|
882 if( switch_deco < deco_gas_change[j] ) |
| 241 | 883 { |
| 884 switch_deco = deco_gas_change[j]; | |
| 388 | 885 switch_last = j+1; // 1..5 |
| 241 | 886 } |
| 225 | 887 } |
| 201 | 888 } |
| 889 | |
| 203 | 890 // If there is a better gas available |
| 241 | 891 if( switch_deco ) |
| 201 | 892 { |
| 241 | 893 assert( !sim_gas_last_depth || sim_gas_last_depth > switch_deco ); |
| 201 | 894 |
| 241 | 895 sim_gas_last_depth = switch_deco; |
| 896 sim_gas_last_used = switch_last; | |
| 755 | 897 return 0; |
| 217 | 898 } |
| 241 | 899 return 0; |
| 217 | 900 } |
| 901 | |
| 902 ////////////////////////////////////////////////////////////////////////////// | |
| 903 // Calculate gas switches | |
|
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904 // |
| 217 | 905 // |
| 906 // Input: N2_ratio, He_ratio. | |
| 907 // sim_gas_last_used | |
| 908 // | |
| 909 // Output: calc_N2_ratio, calc_He_ratio | |
| 910 // | |
| 241 | 911 static void gas_switch_set(void) |
| 217 | 912 { |
| 564 | 913 assert( sim_gas_last_used <= NUM_GAS ); |
| 217 | 914 |
| 388 | 915 if( sim_gas_last_used == 0 ) // Gas6 = manualy set gas. |
| 224 | 916 { |
| 917 calc_N2_ratio = N2_ratio; | |
|
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|
918 calc_He_ratio = He_ratio; |
| 224 | 919 } |
| 920 else | |
| 921 { | |
| 922 calc_N2_ratio = char_I_deco_N2_ratio[sim_gas_last_used-1] * 0.01; | |
|
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|
923 calc_He_ratio = char_I_deco_He_ratio[sim_gas_last_used-1] * 0.01; |
| 217 | 924 } |
| 201 | 925 |
| 926 assert( 0.0 <= calc_N2_ratio && calc_N2_ratio <= 0.95 ); | |
|
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|
927 assert( 0.0 <= calc_He_ratio && calc_He_ratio <= 1.00 ); |
| 201 | 928 assert( (calc_N2_ratio + calc_He_ratio) <= 1.00 ); |
| 929 } | |
| 930 | |
| 931 ////////////////////////////////////////////////////////////////////////////// | |
| 932 // | |
| 212 | 933 // Input: calc_N2_ratio, calc_He_ratio : simulated gas mix. |
| 509 | 934 // temp_deco : simulated respiration pressure |
| 276 | 935 // float_deco_distance : security factor. |
|
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|
936 // Water-vapor pressure inside limbs (ppWater). |
| 212 | 937 // |
| 236 | 938 // Output: ppN2, ppHe. |
| 212 | 939 // |
| 940 static void sim_alveolar_presures(void) | |
| 201 | 941 { |
| 212 | 942 overlay float deco_diluent = temp_deco; // new in v.101 |
| 943 | |
| 276 | 944 // Take deco offset into account, but not at surface. |
| 945 // Note: this should be done on ambiant pressure, hence before | |
| 946 // computing the diluant partial pressure... | |
| 947 if( deco_diluent > pres_surface ) | |
| 948 deco_diluent += float_deco_distance; | |
| 949 | |
| 212 | 950 //---- CCR mode : deco gas switch ? -------------------------------------- |
| 276 | 951 if( char_I_const_ppO2 != 0 ) |
|
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952 { |
| 276 | 953 // In CCR mode, use calc_XX_ratio instead of XX_ratio. |
| 954 // Note: PPO2 and ratios are known outside the lumbs, so there is no | |
|
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955 // ppWater in the equations below: |
| 321 | 956 deco_diluent -= const_ppO2; |
| 276 | 957 deco_diluent /= calc_N2_ratio + calc_He_ratio; |
| 212 | 958 |
| 959 if (deco_diluent > temp_deco) | |
|
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|
960 deco_diluent = temp_deco; |
|
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|
961 } |
| 201 | 962 |
|
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963 if( deco_diluent > ppWater ) |
| 201 | 964 { |
|
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|
965 ppN2 = calc_N2_ratio * (deco_diluent - ppWater); |
|
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|
966 ppHe = calc_He_ratio * (deco_diluent - ppWater); |
| 201 | 967 } |
| 968 else | |
| 969 { | |
| 236 | 970 ppN2 = 0.0; |
| 201 | 971 ppHe = 0.0; |
| 972 } | |
| 236 | 973 assert( 0.0 <= ppN2 && ppN2 < 14.0 ); |
| 201 | 974 assert( 0.0 <= ppHe && ppHe < 14.0 ); |
| 975 } | |
| 976 | |
| 977 ////////////////////////////////////////////////////////////////////////////// | |
| 167 | 978 // clear_tissue |
| 979 // | |
| 165 | 980 // optimized in v.101 (var_N2_a) |
| 167 | 981 // |
| 982 // preload tissues with standard pressure for the given ambient pressure. | |
| 983 // Note: fixed N2_ratio for standard air. | |
| 201 | 984 // |
| 167 | 985 static void clear_tissue(void) |
| 116 | 986 { |
|
511
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987 overlay float p; |
| 116 | 988 |
| 167 | 989 // Kludge: the 0.0002 of 0.7902 are missing with standard air. |
| 990 N2_ratio = 0.7902; | |
| 212 | 991 pres_respiration = int_I_pres_respiration * 0.001; |
|
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|
992 |
|
511
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diff
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993 p = N2_ratio * (pres_respiration - ppWater); |
| 338 | 994 for(ci=0; ci<NUM_COMP; ci++) |
| 126 | 995 { |
|
511
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996 // cycle through the 16 Bühlmann N2 tissues |
| 339 | 997 pres_tissue_N2[ci] = p; |
| 197 | 998 |
| 999 // cycle through the 16 Bühlmann tissues for Helium | |
| 339 | 1000 pres_tissue_He[ci] = 0.0; |
|
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1001 } |
| 116 | 1002 |
|
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1003 clear_deco_table(); |
| 126 | 1004 char_O_deco_status = 0; |
| 1005 char_O_nullzeit = 0; | |
| 168 | 1006 int_O_ascenttime = 0; |
| 126 | 1007 char_O_gradient_factor = 0; |
| 1008 char_O_relative_gradient_GF = 0; | |
| 258 | 1009 |
| 1010 calc_lead_tissue_limit = 0.0; | |
| 1011 char_O_gtissue_no = 0; | |
| 167 | 1012 } |
| 116 | 1013 |
| 167 | 1014 ////////////////////////////////////////////////////////////////////////////// |
| 1015 // calc_hauptroutine | |
| 1016 // | |
| 1017 // this is the major code in dive mode calculates: | |
| 116 | 1018 // the tissues, |
| 167 | 1019 // the bottom time, |
| 1020 // and simulates the ascend with all deco stops. | |
| 171 | 1021 // |
| 1022 // The deco_state sequence is : | |
| 1023 // 3 (at surface) | |
| 1024 // +---> 0 : calc nullzeit | |
| 1025 // | 2 : simulate ascent to first stop (at 10m/min, less that 16x 1min simu) | |
| 1026 // | +-> 1 : simulate up to 16min of stops. | |
| 1027 // | +------< not finished | |
| 1028 // +--------< finish | |
| 1029 // | |
|
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1030 // Added steps 6,5 for @+5 calculation: |
|
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1031 // 6 = ascent to first stop (same as 2), except continue to 7 |
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1032 // 7 = same as 1, except loop to 7. |
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1033 // |
| 167 | 1034 static void calc_hauptroutine(void) |
| 116 | 1035 { |
|
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|
1036 static unsigned char backup_gas_used = 0; |
|
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minor cleanups for CNS/NOAA bugfix.
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|
1037 static unsigned char backup_gas_depth = 0; |
| 186 | 1038 |
|
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|
1039 calc_hauptroutine_data_input(); |
| 116 | 1040 |
|
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|
1041 calc_hauptroutine_update_tissues(); |
|
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diff
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|
1042 calc_gradient_factor(); |
| 116 | 1043 |
|
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|
1044 // toggle between calculation for nullzeit (bottom time), |
|
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|
1045 // deco stops |
| 167 | 1046 // and more deco stops (continue) |
| 697 | 1047 switch( char_O_deco_status ) |
|
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|
1048 { |
| 186 | 1049 case 3: //---- At surface: start a new dive ------------------------------ |
|
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|
1050 clear_deco_table(); |
|
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diff
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|
1051 copy_deco_table(); |
| 743 | 1052 int_O_ascenttime = 0; // Reset TTS. |
|
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|
1053 int_O_extra_ascenttime = 0; |
|
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diff
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|
1054 char_O_nullzeit = 0; // Reset bottom time. |
| 278 | 1055 char_O_deco_status = 0; // Calc bottom-time/nullzeit next iteration. |
| 201 | 1056 |
| 217 | 1057 // Values that should be reset just once for the full real dive. |
| 1058 // This is used to record the lowest stop for the whole dive, | |
| 1059 // Including ACCROSS all simulated ascent. | |
| 695 | 1060 low_depth = 0.0; |
| 567 | 1061 locked_GF_step = 0.0; |
| 217 | 1062 |
| 1063 // Reset gas switch history. | |
| 241 | 1064 backup_gas_used = sim_gas_last_used = 0; |
| 1065 backup_gas_depth = sim_gas_last_depth = 0; | |
| 203 | 1066 sim_dive_mins = 0; |
| 1067 break; | |
| 186 | 1068 |
| 167 | 1069 case 0: //---- bottom time ----------------------------------------------- |
|
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1070 default: |
| 509 | 1071 gas_switch_find_current(); // Lookup for current gas & time. |
| 1072 gas_switch_set(); // setup calc_ratio's | |
| 1073 | |
|
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changeset
|
1074 calc_nullzeit(); |
|
534
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BUGFIX NDL deco blocking stops during ascent when less than 10' TTS.
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|
1075 if( char_O_nullzeit > 0 ) // Some NDL time left ? |
|
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BUGFIX NDL deco blocking stops during ascent when less than 10' TTS.
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|
1076 { |
|
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BUGFIX NDL deco blocking stops during ascent when less than 10' TTS.
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|
1077 char_O_deco_status = 0; // YES: recalc ndl next time. |
|
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|
1078 clear_deco_table(); // Also clear stops ! |
|
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|
1079 copy_deco_table(); |
|
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|
1080 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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|
1081 } |
|
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BUGFIX NDL deco blocking stops during ascent when less than 10' TTS.
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|
1082 else |
|
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|
1083 char_O_deco_status = 2; // NO: calc ascent next time. |
|
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|
1084 break; |
| 186 | 1085 |
| 1086 case 2: //---- Simulate ascent to first stop ----------------------------- | |
|
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1087 case 6: // @+5min variation |
| 203 | 1088 // Check proposed gas at begin of ascent simulation |
|
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|
1089 sim_dive_mins = int_I_divemins; // Init current time. |
| 241 | 1090 |
|
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changeset
|
1091 gas_switch_find_current(); // Lookup for current gas & time. |
| 532 | 1092 gas_switch_set(); // setup calc_ratio's |
| 1093 | |
|
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1094 backup_gas_used = sim_gas_last_used; // And save for later simu steps. |
|
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1095 backup_gas_depth = sim_gas_last_depth; // And save for later simu steps. |
| 186 | 1096 |
|
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changeset
|
1097 sim_ascent_to_first_stop(); |
| 201 | 1098 |
|
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1099 // Calc stops next time (deco or gas switch). |
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1100 char_O_deco_status = 1 | ( char_O_deco_status & 4 ); |
|
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|
1101 break; |
|
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|
1102 |
|
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|
1103 case 1: //---- Simulate stops -------------------------------------------- |
|
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1104 case 5: // @+5 variation. |
|
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|
1105 calc_hauptroutine_calc_deco(); |
| 186 | 1106 |
| 1107 // If simulation is finished, restore the GF low reference, so that | |
| 1108 // next ascent simulation is done from the current depth: | |
|
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changeset
|
1109 if( (char_O_deco_status & 3) == 0 ) |
|
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diff
changeset
|
1110 { |
| 241 | 1111 sim_gas_last_used = backup_gas_used; |
| 1112 sim_gas_last_depth = backup_gas_depth; | |
| 186 | 1113 } |
|
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|
1114 break; |
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|
1115 } |
| 167 | 1116 |
| 116 | 1117 } |
| 1118 | |
| 167 | 1119 ////////////////////////////////////////////////////////////////////////////// |
| 1120 // calc_hauptroutine_data_input | |
| 1121 // | |
| 1122 // Reset all C-code dive parameters from their ASM-code values. | |
| 1123 // Detect gas change condition. | |
| 1124 // | |
| 116 | 1125 void calc_hauptroutine_data_input(void) |
| 1126 { | |
| 203 | 1127 overlay short int_temp; |
|
511
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NEW NDL NDL faster/more precise simu (but no closed formula for trimix).
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|
1128 overlay unsigned char g; |
|
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|
1129 |
| 197 | 1130 pres_respiration = int_I_pres_respiration * 0.001; |
| 1131 pres_surface = int_I_pres_surface * 0.001; | |
| 1132 N2_ratio = char_I_N2_ratio * 0.01; | |
| 1133 He_ratio = char_I_He_ratio * 0.01; | |
| 1134 float_deco_distance = char_I_deco_distance * 0.01; // Get offset is in mbar. | |
| 116 | 1135 |
| 126 | 1136 // ____________________________________________________ |
| 1137 // | |
| 1138 // _____________ G A S _ C H A N G E S ________________ | |
| 1139 // ____________________________________________________ | |
|
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1140 |
| 212 | 1141 // Keep a margin of 150mbar = 1.50m |
| 1142 int_temp = (int_I_pres_respiration - int_I_pres_surface) | |
| 1143 + MBAR_REACH_GASCHANGE_AUTO_CHANGE_OFF; | |
|
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1144 |
| 203 | 1145 // 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).
JeanDo
parents:
509
diff
changeset
|
1146 for(g=0; g < NUM_GAS; ++g) |
| 126 | 1147 { |
|
511
2a6293641d51
NEW NDL NDL faster/more precise simu (but no closed formula for trimix).
JeanDo
parents:
509
diff
changeset
|
1148 deco_gas_change[g] = 0; |
|
2a6293641d51
NEW NDL NDL faster/more precise simu (but no closed formula for trimix).
JeanDo
parents:
509
diff
changeset
|
1149 if(char_I_deco_gas_change[g]) |
|
2a6293641d51
NEW NDL NDL faster/more precise simu (but no closed formula for trimix).
JeanDo
parents:
509
diff
changeset
|
1150 if( int_temp > 100 *(short)char_I_deco_gas_change[g] ) |
|
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1151 deco_gas_change[g] = char_I_deco_gas_change[g]; |
| 126 | 1152 } |
| 116 | 1153 |
| 197 | 1154 const_ppO2 = char_I_const_ppO2 * 0.01; |
| 1155 float_desaturation_multiplier = char_I_desaturation_multiplier * 0.01; | |
| 1156 float_saturation_multiplier = char_I_saturation_multiplier * 0.01; | |
| 1157 GF_low = char_I_GF_Low_percentage * 0.01; | |
| 1158 GF_high = char_I_GF_High_percentage * 0.01; | |
| 126 | 1159 GF_delta = GF_high - GF_low; |
| 116 | 1160 } |
| 1161 | |
| 167 | 1162 ////////////////////////////////////////////////////////////////////////////// |
| 171 | 1163 // |
| 1164 // | |
| 116 | 1165 void calc_hauptroutine_update_tissues(void) |
| 1166 { | |
| 197 | 1167 assert( 0.00 <= N2_ratio && N2_ratio <= 1.00 ); |
| 1168 assert( 0.00 <= He_ratio && He_ratio <= 1.00 ); | |
|
782
6f54104ea0ee
minor fix: assert should pass for pure helium diluant
JeanDo
parents:
766
diff
changeset
|
1169 assert( (N2_ratio + He_ratio) <= 1.00 ); |
| 237 | 1170 assert( 0.800 < pres_respiration && pres_respiration < 14.0 ); |
| 197 | 1171 |
|
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1172 pres_diluent = pres_respiration; |
| 307 | 1173 if( char_I_const_ppO2 != 0 ) // new in v.101 |
| 186 | 1174 { |
| 322 | 1175 overlay float flush_ppO2 = pres_respiration * (1.0 - N2_ratio - He_ratio); |
|
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1176 |
|
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1177 pres_diluent -= const_ppO2; // new in v.101 |
|
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1178 pres_diluent /= N2_ratio + He_ratio; // new in v.101 |
| 321 | 1179 if( pres_diluent < 0.0 ) |
| 1180 pres_diluent = 0.0; | |
|
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1181 if( pres_diluent > pres_respiration ) // new in v.101 |
|
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1182 pres_diluent = pres_respiration; // new in v.101 |
| 307 | 1183 |
|
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1184 char_O_diluent = (unsigned char)(pres_diluent/pres_respiration*100.0 + 0.5); |
| 322 | 1185 |
|
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1186 if( flush_ppO2 > 2.545) flush_ppO2 = 2.55; |
|
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1187 if( flush_ppO2 < 0.0 ) flush_ppO2 = 0.0; |
|
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1188 char_O_flush_ppO2 = (unsigned char)(flush_ppO2*100.0 + 0.5); |
| 186 | 1189 } |
| 307 | 1190 |
|
310
b20fc8c4ac92
Fix EAD/END display (not mm, m with a trailling space)
JeanDo
parents:
307
diff
changeset
|
1191 if( pres_diluent > ppWater ) // new in v.101 |
|
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1192 { |
|
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1193 overlay float EAD, END; |
| 307 | 1194 |
|
310
b20fc8c4ac92
Fix EAD/END display (not mm, m with a trailling space)
JeanDo
parents:
307
diff
changeset
|
1195 ppN2 = N2_ratio * (pres_diluent - ppWater); // changed in v.101 |
|
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1196 ppHe = He_ratio * (pres_diluent - ppWater); // changed in v.101 |
|
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1197 |
|
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1198 // EAD : Equivalent Air Dive. Equivalent depth for the same N2 level |
|
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1199 // with plain air. |
|
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1200 // ppN2 = 79% * (P_EAD - ppWater) |
|
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1201 // EAD = (P_EAD - Psurface) * 10 |
|
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1202 // ie: EAD = (ppN2 / 0.7902 + ppWater -Psurface) * 10 |
|
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1203 EAD = (ppN2 / 0.7902 + ppWater - pres_surface) * BAR_TO_METER; |
|
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1204 if( EAD < 0.0 || EAD > 245.5 ) EAD = 0.0; |
|
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1205 char_O_EAD = (unsigned char)(EAD + 0.5); |
| 307 | 1206 |
|
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1207 // END : Equivalent Narcotic Dive. |
|
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1208 // Here we count O2 as narcotic too. Hence everything but helium (has a narcosis factor of |
|
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1209 // 0.23 btw). Hence the formula becomes: |
|
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1210 // END * BarPerMeter * (1.0 - 0.0) - ppWater + Psurface == Pambient - ppHe - ppWater |
|
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1211 // ie: END = (Pambient - ppHe - Psurface) * BAR_TO_METER |
|
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1212 // |
|
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1213 // Source cited: |
|
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1214 // The Physiology and Medicine of Diving by Peter Bennett and David Elliott, |
|
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1215 // 4th edition, 1993, W.B.Saunders Company Ltd, London. |
|
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1216 END = (pres_respiration - ppHe - pres_surface) * BAR_TO_METER; |
|
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1217 if( END < 0.0 || END > 245.5 ) END = 0.0; |
|
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1218 char_O_END = (unsigned char)(END + 0.5); |
|
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1219 } |
|
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1220 else // new in v.101 |
|
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1221 { |
|
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1222 ppN2 = 0.0; // new in v.101 |
|
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1223 ppHe = 0.0; // new in v.101 |
|
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1224 char_O_EAD = char_O_END = 0; |
|
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1225 } |
| 116 | 1226 |
|
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1227 if(!char_I_step_is_1min) |
|
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1228 calc_tissue(0); |
|
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1229 else |
|
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1230 calc_tissue(1); |
| 186 | 1231 |
| 192 | 1232 // Calc limit for surface, ie. GF_high. |
| 258 | 1233 calc_limit(); |
| 186 | 1234 |
|
786
0d1a82cdb3dc
compute ceiling in calc_hauptroutine_update_tissues
heinrichsweikamp
parents:
785
diff
changeset
|
1235 // Fill int_O_ceiling if ceiling is below the surface |
|
0d1a82cdb3dc
compute ceiling in calc_hauptroutine_update_tissues
heinrichsweikamp
parents:
785
diff
changeset
|
1236 if ((calc_lead_tissue_limit-pres_surface)>0) |
|
0d1a82cdb3dc
compute ceiling in calc_hauptroutine_update_tissues
heinrichsweikamp
parents:
785
diff
changeset
|
1237 int_O_ceiling = (short)((calc_lead_tissue_limit-pres_surface)*1000); |
|
0d1a82cdb3dc
compute ceiling in calc_hauptroutine_update_tissues
heinrichsweikamp
parents:
785
diff
changeset
|
1238 else |
|
0d1a82cdb3dc
compute ceiling in calc_hauptroutine_update_tissues
heinrichsweikamp
parents:
785
diff
changeset
|
1239 int_O_ceiling = 0; |
|
0d1a82cdb3dc
compute ceiling in calc_hauptroutine_update_tissues
heinrichsweikamp
parents:
785
diff
changeset
|
1240 |
|
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1241 int_O_gtissue_press = (short)((pres_tissue_N2[char_O_gtissue_no] + pres_tissue_He[char_O_gtissue_no]) * 1000); |
| 171 | 1242 } |
| 1243 | |
| 116 | 1244 |
| 167 | 1245 ////////////////////////////////////////////////////////////////////////////// |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1246 // Compute stops. |
|
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1247 // |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1248 // Note: because this can be very long, break on 16 iterations, and set state |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1249 // to 0 when finished, or to 1 when needing to continue. |
|
334
4ccdc72ec0e5
BUGFIX minor error in gas-switch algo (spurious surface decostop rarely added).
JeanDo
parents:
326
diff
changeset
|
1250 // Note: because each iteration might be very long too (~ 66 ms in 1.84beta), |
|
257
f8f869bafd92
Use timer TMR3 to limit loops in calc_hauptroutine_calc_deco()
JeanDo
parents:
252
diff
changeset
|
1251 // break the loop when total time > 512msec. |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1252 // |
| 116 | 1253 void calc_hauptroutine_calc_deco(void) |
| 1254 { | |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1255 overlay unsigned char loop; |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1256 |
|
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1257 for(loop = 0; loop < 16; ++loop) |
|
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1258 { |
|
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1259 // Limit loops to 512ms, using the RTC timer 3: |
|
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1260 if( tmr3() & (512*32) ) |
|
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1261 break; |
|
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1262 |
| 755 | 1263 if( calc_nextdecodepth() ) |
| 757 | 1264 { |
| 241 | 1265 if( temp_depth_limit == 0 ) |
| 1266 goto Surface; | |
| 116 | 1267 |
| 241 | 1268 //---- We hit a stop at temp_depth_limit --------------------- |
| 317 | 1269 temp_deco = temp_depth_limit * METER_TO_BAR // Convert to relative bar, |
| 757 | 1270 + pres_surface; // To absolute. |
| 471 | 1271 if( !update_deco_table() ) // Adds a one minute stops. |
| 1272 goto Surface; // Deco table full: abort... | |
| 241 | 1273 } |
| 1274 else | |
| 1275 { | |
| 1276 //---- No stop ----------------------------------------------- | |
| 317 | 1277 temp_deco -= (10*METER_TO_BAR); // Ascend 10m, no wait. |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1278 |
| 241 | 1279 //---- Finish computations once surface is reached ----------- |
| 1280 if( temp_deco <= pres_surface ) | |
| 1281 { | |
| 1282 Surface: | |
| 471 | 1283 if( char_O_deco_status == 1 ) // Don't in @+5min variant. |
|
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1284 copy_deco_table(); |
|
312
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1285 |
|
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1286 calc_ascenttime(); |
| 471 | 1287 char_O_deco_status = 0; // calc nullzeit next time. |
| 1288 char_O_deco_last_stop = 0; // Surface reached (to animate menu) | |
| 755 | 1289 return; |
| 241 | 1290 } |
| 1291 } | |
| 1292 //---- Then update tissue -------------------------------------------- | |
| 203 | 1293 sim_dive_mins++; // Advance simulated time by 1 minute. |
| 241 | 1294 gas_switch_set(); // Apply any simulated gas change, once validated. |
|
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1295 sim_alveolar_presures(); // Updates ppN2 and ppHe. |
| 192 | 1296 sim_tissue(1); // Simulate compartiments for 1 minute. |
|
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1297 } |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1298 |
|
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1299 // Surface not reached, need more stops... for menu animation. |
| 278 | 1300 char_O_deco_last_stop = temp_depth_limit; // Reached depth. |
| 116 | 1301 } |
| 1302 | |
| 167 | 1303 ////////////////////////////////////////////////////////////////////////////// |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1304 // Simulation ascention to first deco stop. |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1305 // |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1306 // Note: because we ascent with a constant speed (10m/mn, ie. 1bar/mn), |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1307 // there is no need to break on more that 16 iterations |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1308 // (or we are already in deep shit). |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1309 // |
|
334
4ccdc72ec0e5
BUGFIX minor error in gas-switch algo (spurious surface decostop rarely added).
JeanDo
parents:
326
diff
changeset
|
1310 // Input: pres_respiration |
|
4ccdc72ec0e5
BUGFIX minor error in gas-switch algo (spurious surface decostop rarely added).
JeanDo
parents:
326
diff
changeset
|
1311 // Output: temp_deco |
|
4ccdc72ec0e5
BUGFIX minor error in gas-switch algo (spurious surface decostop rarely added).
JeanDo
parents:
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1312 // |
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1313 // if char_O_deco_status indicate @+5 variant, add extra time at current depth, |
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1314 // before ascent. |
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1315 void sim_ascent_to_first_stop(void) |
| 116 | 1316 { |
| 698 | 1317 overlay unsigned char fast = 1; // 1min or 2sec steps. |
| 1318 | |
| 171 | 1319 update_startvalues(); |
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1320 clear_deco_table(); |
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1321 |
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1322 temp_deco = pres_respiration; // Starts from current real depth. |
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1323 |
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1324 // Are we doing the special @+5min variation ? |
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1325 if(char_O_deco_status & 4) |
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1326 sim_extra_time(); |
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1327 |
| 241 | 1328 //---- Loop until first stop, gas switch, or surface is reached ---------- |
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1329 for(;;) |
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1330 { |
| 461 | 1331 overlay float old_deco = temp_deco; // Pamb backup (bars) |
| 460 | 1332 |
| 698 | 1333 // Try ascending 1 full minute (fast) or 2sec (!fast): |
| 1334 if( fast ) | |
| 1335 temp_deco -= 10*METER_TO_BAR; // 1 min, at 10m/min. ~ 1bar. | |
| 1336 else | |
| 1337 temp_deco -= (10.0/30.0)*METER_TO_BAR; // 2sec at 10m/min. | |
| 1338 | |
| 461 | 1339 if( temp_deco < pres_surface ) // But don't go over surface. |
| 1340 temp_deco = pres_surface; | |
| 203 | 1341 |
| 461 | 1342 // Recompute sim_lead_tissue_limit at GF_low (deepest stop), because |
| 1343 // one minute passed. | |
| 212 | 1344 sim_limit(GF_low); |
| 1345 | |
| 1346 // Did we reach deepest remaining stop ? | |
| 241 | 1347 if( temp_deco < sim_lead_tissue_limit ) |
| 212 | 1348 { |
| 461 | 1349 temp_deco = old_deco; // Restore last correct depth, |
| 698 | 1350 |
| 1351 if( fast ) | |
| 1352 { | |
| 1353 fast = 0; // Retry with 2sec steps. | |
| 1354 continue; | |
| 1355 } | |
| 1356 else | |
| 1357 break; // Done... | |
| 212 | 1358 } |
| 1359 | |
| 203 | 1360 // Did we reach surface ? |
| 460 | 1361 // NOTE: we should round BEFORE checking surface is reached. |
| 461 | 1362 temp_depth_limit = (unsigned char)(0.5 + (temp_deco - pres_surface) * BAR_TO_METER); |
| 1363 if( temp_depth_limit == 0 ) | |
| 203 | 1364 { |
| 1365 temp_deco = pres_surface; // Yes: finished ! | |
| 1366 break; | |
| 1367 } | |
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1368 |
| 241 | 1369 // Check for gas change below new depth ? |
| 1370 if( gas_switch_deepest() ) | |
| 1371 { | |
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1372 assert( temp_depth_limit > 0); |
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1373 |
| 317 | 1374 temp_deco = temp_depth_limit * METER_TO_BAR + pres_surface; |
| 212 | 1375 break; |
| 241 | 1376 } |
| 171 | 1377 |
| 698 | 1378 if( fast ) |
| 1379 sim_dive_mins++; // Advance simulated time by 1 minute. | |
| 241 | 1380 sim_alveolar_presures(); // temp_deco --> ppN2/ppHe |
| 698 | 1381 sim_tissue(fast); // and update tissues for 1 min. |
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1382 } |
| 167 | 1383 } |
| 116 | 1384 |
| 167 | 1385 ////////////////////////////////////////////////////////////////////////////// |
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1386 // Simulation extra time at the current depth. |
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1387 // |
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1388 // This routine is used for @+5min feature. |
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1389 void sim_extra_time(void) |
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1390 { |
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1391 overlay unsigned char extra = read_custom_function(58); |
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1392 do { |
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1393 sim_dive_mins++; // Advance simulated time by 1 minute. |
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1394 sim_tissue(1); // and update tissues for 1 min. |
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1395 } while( --extra != 0 ); |
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1396 } |
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1397 |
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1398 ////////////////////////////////////////////////////////////////////////////// |
| 167 | 1399 // calc_tissue |
| 1400 // | |
| 116 | 1401 // optimized in v.101 |
| 167 | 1402 // |
| 184 | 1403 static void calc_tissue(PARAMETER unsigned char period) |
| 116 | 1404 { |
| 251 | 1405 assert( 0.00 <= ppN2 && ppN2 < 11.2 ); // 80% N2 at 130m |
| 1406 assert( 0.00 <= ppHe && ppHe < 12.6 ); // 90% He at 130m | |
| 236 | 1407 |
| 338 | 1408 for (ci=0;ci<NUM_COMP;ci++) |
| 126 | 1409 { |
| 258 | 1410 read_buhlmann_times(period); // 2 sec or 1 min period. |
| 116 | 1411 |
| 126 | 1412 // N2 |
| 339 | 1413 temp_tissue = (ppN2 - pres_tissue_N2[ci]) * var_N2_e; |
| 126 | 1414 temp_tissue_safety(); |
| 339 | 1415 pres_tissue_N2[ci] += temp_tissue; |
| 165 | 1416 |
| 126 | 1417 // He |
| 339 | 1418 temp_tissue = (ppHe - pres_tissue_He[ci]) * var_He_e; |
| 126 | 1419 temp_tissue_safety(); |
| 339 | 1420 pres_tissue_He[ci] += temp_tissue; |
| 192 | 1421 } |
| 167 | 1422 } |
| 116 | 1423 |
| 167 | 1424 ////////////////////////////////////////////////////////////////////////////// |
| 192 | 1425 // calc_limit |
| 167 | 1426 // |
| 192 | 1427 // New in v.111 : separated from calc_tissue(), and depends on GF value. |
| 167 | 1428 // |
| 258 | 1429 static void calc_limit(void) |
| 167 | 1430 { |
| 192 | 1431 char_O_gtissue_no = 255; |
| 1432 calc_lead_tissue_limit = 0.0; | |
| 1433 | |
| 338 | 1434 for(ci=0; ci<NUM_COMP;ci++) |
| 192 | 1435 { |
| 339 | 1436 overlay float N2 = pres_tissue_N2[ci]; |
| 1437 overlay float He = pres_tissue_He[ci]; | |
|
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1438 overlay float p = N2 + He; |
| 192 | 1439 |
| 258 | 1440 read_buhlmann_coefficients(); |
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1441 var_N2_a = (var_N2_a * N2 + var_He_a * He) / p; |
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1442 var_N2_b = (var_N2_b * N2 + var_He_b * He) / p; |
| 116 | 1443 |
| 192 | 1444 // Apply the Eric Baker's varying gradient factor correction. |
| 1445 // Note: the correction factor depends both on GF and b, | |
| 1446 // Actual values are in the 1.5 .. 1.0 range (for a GF=30%), | |
| 1447 // so that can change who is the leading gas... | |
| 1448 // Note: Also depends of the GF. So the calcul is different for | |
| 1449 // GF_low, current GF, or GF_high... | |
| 1450 // *BUT* calc_tissue() is used to compute bottom time, | |
| 1451 // hence what would happend at surface, | |
| 1452 // hence at GF_high. | |
| 509 | 1453 if( char_I_deco_model != 0 ) |
| 258 | 1454 p = ( p - var_N2_a * GF_high) * var_N2_b |
| 1455 / (GF_high + var_N2_b * (1.0 - GF_high)); | |
| 192 | 1456 else |
| 1457 p = (p - var_N2_a) * var_N2_b; | |
| 258 | 1458 if( p < 0.0 ) p = 0.0; |
| 192 | 1459 |
| 1460 if( p > calc_lead_tissue_limit ) | |
| 1461 { | |
| 1462 char_O_gtissue_no = ci; | |
| 1463 calc_lead_tissue_limit = p; | |
| 1464 } | |
| 1465 } | |
| 197 | 1466 |
| 338 | 1467 assert( char_O_gtissue_no < NUM_COMP ); |
| 197 | 1468 assert( 0.0 <= calc_lead_tissue_limit && calc_lead_tissue_limit <= 14.0); |
| 167 | 1469 } |
| 1470 | |
| 1471 ////////////////////////////////////////////////////////////////////////////// | |
| 1472 // calc_nullzeit | |
| 1473 // | |
| 1474 // calculates the remaining bottom time | |
| 1475 // | |
|
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1476 // NOTE: Erik Baker's closed formula works for Nitroxes. Trimix adds a second |
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1477 // exponential term to the M-value equation, making it impossible to |
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1478 // invert... So we have to make a fast-simu until we find a better way. |
| 509 | 1479 // |
| 1480 // Input: pres_respiration | |
| 1481 // Output: char_O_nullzeit | |
| 167 | 1482 // |
| 1483 static void calc_nullzeit(void) | |
| 1484 { | |
|
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1485 //---- Compute ppN2 and ppHe --------------------------------------------- |
| 509 | 1486 temp_deco = pres_respiration; |
| 1487 sim_alveolar_presures(); | |
| 167 | 1488 |
| 509 | 1489 char_O_nullzeit = 240; |
| 1490 for(ci=0; ci<NUM_COMP; ci++) | |
| 1491 { | |
|
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1492 //---- Read A/B values and loading factor for N2 and He -------------- |
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1493 overlay float tN2 = pres_tissue_N2[ci]; |
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1494 overlay float tHe = pres_tissue_He[ci]; |
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1495 overlay float t = tN2 + tHe; |
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1496 overlay unsigned char ndl; |
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1497 overlay unsigned char period = 10; |
| 192 | 1498 |
| 509 | 1499 read_buhlmann_coefficients(); |
|
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1500 read_buhlmann_times(2); // Starts with a 10min period. |
|
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1501 |
|
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1502 //---- Simulate for that tissue -------------------------------------- |
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1503 // NOTE: No need to simulate for longuer than the already found NDL. |
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1504 for(ndl=0; ndl<char_O_nullzeit;) |
| 509 | 1505 { |
|
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1506 //---- Compute updated mix M-value at surface |
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1507 overlay float a = (var_N2_a * tN2 + var_He_a * tHe) / t; |
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1508 overlay float b = (var_N2_b * tN2 + var_He_b * tHe) / t; |
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1509 overlay float M0 = (a + pres_surface/b); |
| 116 | 1510 |
|
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1511 //---- Add 10min/1min to N2/He tissues |
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1512 overlay float dTN2 = (ppN2 - tN2) * var_N2_e; |
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1513 overlay float dTHe = (ppHe - tHe) * var_He_e; |
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1514 |
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1515 //---- Apply security margin when using the non-GF model |
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1516 if( char_I_deco_model == 0 ) |
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1517 { |
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1518 dTN2 *= float_saturation_multiplier; |
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1519 dTHe *= float_saturation_multiplier; |
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1520 } |
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1521 else // Or GF-based model |
| 509 | 1522 M0 = GF_high * (M0 - pres_surface) + pres_surface; |
| 167 | 1523 |
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1524 //---- Simulate off-gasing while going to surface |
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1525 // TODO ! |
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1526 // dTN2 -= exp( ... ascent time ... ppN2...) |
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1527 // dTHe -= exp( ... ascent time ... ppHe...) |
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1528 |
|
534
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1529 //---- Ok now, and still ok to surface after 1 or 10 minutes ? |
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1530 if( (t <= M0) && (t + dTN2 + dTHe <= M0) ) |
| 509 | 1531 { |
|
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1532 tN2 += dTN2; // YES: apply gas loadings, |
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1533 tHe += dTHe; |
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1534 t = tN2 + tHe; |
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1535 ndl += period; // increment NDL, |
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1536 continue; // and loop. |
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1537 } |
| 116 | 1538 |
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1539 //---- Should we retry with smaller steps ? |
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1540 if( period == 10 ) |
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1541 { |
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1542 read_buhlmann_times(1); // 1min coefs. |
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1543 period = 1; |
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1544 continue; |
|
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|
1545 } |
| 167 | 1546 |
|
511
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1547 //---- ELSE make a linear approx for the last minute |
| 524 | 1548 // Usefull to have a meaningfull rounding of NDL. |
| 1549 // But ONLY it positive (negativ casted to unsigned is bad). | |
| 1550 if( M0 > t ) | |
| 1551 ndl += (unsigned char)(0.5f + (M0-t)/(dTN2+dTHe)); | |
|
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1552 break; |
| 509 | 1553 } |
|
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1554 |
|
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1555 // Keep the shortest NDL found |
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1556 if( ndl < char_O_nullzeit ) |
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1557 char_O_nullzeit = ndl; |
| 339 | 1558 } |
| 167 | 1559 } |
| 116 | 1560 |
| 167 | 1561 ////////////////////////////////////////////////////////////////////////////// |
| 1562 // calc_ascenttime | |
| 1563 // | |
|
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1564 // Summup ascent from bottom to surface, at 1 bar/min, 1min for last 3 meters, |
|
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1565 // and all stops. |
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1566 // |
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1567 // Result in int_O_ascenttime, or int_O_extra_ascenttime if in @+5min variant. |
|
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1568 static void calc_ascenttime(void) |
| 116 | 1569 { |
| 323 | 1570 overlay unsigned char x; |
| 1571 overlay unsigned short sum; | |
| 168 | 1572 |
| 323 | 1573 // + 0.7 to count 1 minute ascent time from 3 metre to surface |
|
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|
1574 overlay float ascent = pres_respiration - pres_surface + 0.7; |
| 323 | 1575 if (ascent < 0.0) |
| 1576 ascent = 0.0; | |
| 1577 sum = (unsigned short)(ascent + 0.99); | |
|
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1578 |
| 338 | 1579 for(x=0; x<NUM_STOPS && internal_deco_depth[x]; x++) |
| 323 | 1580 sum += (unsigned short)internal_deco_time[x]; |
| 1581 | |
| 1582 if( char_O_deco_status == 1 ) | |
| 1583 int_O_ascenttime = sum; | |
| 126 | 1584 else |
| 323 | 1585 int_O_extra_ascenttime = sum; |
| 167 | 1586 } |
| 116 | 1587 |
| 167 | 1588 ////////////////////////////////////////////////////////////////////////////// |
| 1589 // update_startvalues | |
| 1590 // | |
| 116 | 1591 // updated in v.102 |
| 167 | 1592 // |
| 116 | 1593 void update_startvalues(void) |
| 1594 { | |
| 167 | 1595 overlay unsigned char x; |
| 116 | 1596 |
| 201 | 1597 // Start ascent simulation with current tissue partial pressures. |
|
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|
1598 for(x=0; x<NUM_COMP; x++) |
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1599 { |
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1600 sim_pres_tissue_N2[x] = pres_tissue_N2[x]; |
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1601 sim_pres_tissue_He[x] = pres_tissue_He[x]; |
|
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|
1602 } |
| 197 | 1603 |
| 201 | 1604 // No leading tissue (yet) for this ascent simulation. |
| 197 | 1605 sim_lead_tissue_limit = 0.0; |
| 1606 sim_lead_tissue_no = 255; | |
| 167 | 1607 } |
| 116 | 1608 |
| 167 | 1609 ////////////////////////////////////////////////////////////////////////////// |
| 192 | 1610 // sim_tissue |
| 167 | 1611 // |
| 116 | 1612 // optimized in v.101 |
| 167 | 1613 // |
| 1614 // Function very simular to calc_tissue, but: | |
| 1615 // + Use a 1min or 10min period. | |
| 1616 // + Do it on sim_pres_tissue, instead of pres_tissue. | |
| 184 | 1617 static void sim_tissue(PARAMETER unsigned char period) |
| 116 | 1618 { |
| 251 | 1619 assert( 0.00 <= ppN2 && ppN2 < 11.2 ); // 80% N2 at 130m |
| 1620 assert( 0.00 <= ppHe && ppHe < 12.6 ); // 90% He at 130m | |
| 236 | 1621 |
| 338 | 1622 for(ci=0; ci<NUM_COMP; ci++) |
| 126 | 1623 { |
| 258 | 1624 read_buhlmann_times(period); // 1 or 10 minute(s) interval |
| 165 | 1625 |
| 126 | 1626 // N2 |
| 339 | 1627 temp_tissue = (ppN2 - sim_pres_tissue_N2[ci]) * var_N2_e; |
| 126 | 1628 temp_tissue_safety(); |
| 339 | 1629 sim_pres_tissue_N2[ci] += temp_tissue; |
|
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|
1630 |
| 126 | 1631 // He |
| 339 | 1632 temp_tissue = (ppHe - sim_pres_tissue_He[ci]) * var_He_e; |
| 126 | 1633 temp_tissue_safety(); |
| 339 | 1634 sim_pres_tissue_He[ci] += temp_tissue; |
| 192 | 1635 } |
| 167 | 1636 } |
| 116 | 1637 |
| 167 | 1638 ////////////////////////////////////////////////////////////////////////////// |
| 192 | 1639 // sim_limit() |
| 1640 // | |
| 1641 // New in v.111 | |
| 1642 // | |
| 1643 // Function separated from sim_tissue() to allow recomputing limit on | |
| 1644 // different depth, because it depends on current gradient factor. | |
| 167 | 1645 // |
| 192 | 1646 static void sim_limit(PARAMETER float GF_current) |
| 116 | 1647 { |
| 212 | 1648 assert( 0.0 < GF_current && GF_current <= 1.0f); |
| 1649 | |
| 192 | 1650 sim_lead_tissue_limit = 0.0; |
| 212 | 1651 sim_lead_tissue_no = 0; // If no one is critic, keep first tissue. |
| 192 | 1652 |
| 338 | 1653 for(ci=0; ci<NUM_COMP; ci++) |
| 192 | 1654 { |
| 339 | 1655 overlay float N2 = sim_pres_tissue_N2[ci]; |
| 1656 overlay float He = sim_pres_tissue_He[ci]; | |
| 241 | 1657 overlay float p = N2 + He; |
| 192 | 1658 |
| 258 | 1659 read_buhlmann_coefficients(); |
| 241 | 1660 var_N2_a = (var_N2_a * N2 + var_He_a * He) / p; |
| 1661 var_N2_b = (var_N2_b * N2 + var_He_b * He) / p; | |
| 192 | 1662 |
| 1663 // Apply the Eric Baker's varying gradient factor correction. | |
| 1664 // Note: the correction factor depends both on GF and b, | |
| 1665 // Actual values are in the 1.5 .. 1.0 range (for a GF=30%), | |
| 1666 // so that can change who is the leading gas... | |
| 1667 // Note: Also depends of the GF_current... | |
| 509 | 1668 if( char_I_deco_model != 0 ) |
|
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|
1669 p = ( p - var_N2_a * GF_current) |
| 302 | 1670 / (GF_current / var_N2_b + 1.0 - GF_current); |
| 192 | 1671 else |
| 1672 p = (p - var_N2_a) * var_N2_b; | |
| 1673 | |
| 1674 if( p > sim_lead_tissue_limit ) | |
| 1675 { | |
| 1676 sim_lead_tissue_no = ci; | |
| 1677 sim_lead_tissue_limit = p; | |
| 1678 } | |
| 1679 } // for ci | |
| 197 | 1680 |
| 338 | 1681 assert( sim_lead_tissue_no < NUM_COMP ); |
| 237 | 1682 assert( 0.0 <= sim_lead_tissue_limit && sim_lead_tissue_limit <= 14.0 ); |
| 167 | 1683 } |
| 116 | 1684 |
| 167 | 1685 ////////////////////////////////////////////////////////////////////////////// |
|
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1686 // clear_deco_table |
| 167 | 1687 // |
| 1688 // unchanged in v.101 | |
| 1689 // | |
|
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|
1690 static void clear_deco_table(void) |
| 116 | 1691 { |
|
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1692 overlay unsigned char x; |
|
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1693 |
| 338 | 1694 for(x=0; x<NUM_STOPS; ++x) |
|
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1695 { |
|
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1696 internal_deco_time [x] = 0; |
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|
1697 internal_deco_depth[x] = 0; |
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1698 } |
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|
1699 } |
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1700 |
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|
1701 ////////////////////////////////////////////////////////////////////////////// |
|
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1702 // update_deco_table |
|
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|
1703 // |
|
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|
1704 // Add 1 min to current stop. |
|
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|
1705 // |
|
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|
1706 // Inputs: |
|
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|
1707 // temp_depth_limit = stop's depth, in meters. |
|
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1708 // In/Out: |
|
275
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|
1709 // internal_deco_depth[] : depth (in metres) of each stops. |
|
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|
1710 // internal_deco_time [] : time (in minutes) of each stops. |
|
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|
1711 // |
| 471 | 1712 static unsigned char update_deco_table() |
|
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|
1713 { |
| 192 | 1714 overlay unsigned char x; |
|
247
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
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diff
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|
1715 assert( temp_depth_limit < 128 ); // Can't be negativ (overflown). |
|
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BUGFIX Count gas switch delay down during ascent (bug bb26)
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|
1716 assert( temp_depth_limit > 0 ); // No stop at surface... |
|
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|
1717 |
| 338 | 1718 for(x=0; x<NUM_STOPS; ++x) |
| 192 | 1719 { |
| 212 | 1720 // Make sure deco-stops are recorded in order: |
|
766
3b1af9891019
BUGFIX: CNS calculation in decoplan should track gas (no marked changes anymore)
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diff
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|
1721 assert( !internal_deco_depth[x] || temp_depth_limit <= internal_deco_depth[x] ); |
| 212 | 1722 |
|
766
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|
1723 if( internal_deco_depth[x]== temp_depth_limit ) |
| 192 | 1724 { |
| 1725 // Do not overflow (max 255') | |
|
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|
1726 if( internal_deco_time[x] < 255 ) |
| 192 | 1727 { |
| 1728 internal_deco_time[x]++; | |
| 471 | 1729 return 1; |
| 192 | 1730 } |
| 1731 // But store extra in the next stop... | |
|
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|
1732 } |
| 192 | 1733 |
|
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|
1734 if( internal_deco_depth[x] == 0 ) |
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|
1735 { |
| 192 | 1736 internal_deco_depth[x] = temp_depth_limit; |
|
279
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|
1737 |
|
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|
1738 internal_deco_time[x] = 1; |
| 757 | 1739 internal_deco_gas[x] = sim_gas_last_used; |
| 471 | 1740 return 1; |
|
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|
1741 } |
|
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|
1742 } |
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|
1743 |
| 192 | 1744 // Can't store stops at more than 96m. |
| 1745 // Or stops at less that 3m too. | |
|
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|
1746 // Just do nothing with that... |
| 471 | 1747 return 0; |
| 167 | 1748 } |
| 116 | 1749 |
| 167 | 1750 ////////////////////////////////////////////////////////////////////////////// |
| 1751 // calc_gradient_factor | |
| 1752 // | |
| 165 | 1753 // optimized in v.101 (var_N2_a) |
| 116 | 1754 // new code in v.102 |
| 167 | 1755 // |
| 1756 static void calc_gradient_factor(void) | |
| 116 | 1757 { |
| 197 | 1758 overlay float gf; |
| 339 | 1759 overlay float N2 = pres_tissue_N2[char_O_gtissue_no]; |
| 1760 overlay float He = pres_tissue_He[char_O_gtissue_no]; | |
| 237 | 1761 |
| 338 | 1762 assert( char_O_gtissue_no < NUM_COMP ); |
| 237 | 1763 assert( 0.800 <= pres_respiration && pres_respiration < 14.0 ); |
| 197 | 1764 |
|
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|
1765 // tissue > respiration (currently off-gasing) |
|
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diff
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|
1766 // GF = 0% when respiration == tissue, ie. bubbles are at equilibrium. |
|
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diff
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|
1767 // GF = 100% when respiration == limit. |
|
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|
1768 temp_tissue = N2 + He; |
|
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|
1769 if( temp_tissue <= pres_respiration ) |
|
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diff
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|
1770 gf = 0.0; |
| 197 | 1771 else |
| 1772 { | |
|
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|
1773 overlay float limit = calc_lead_tissue_limit; |
|
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|
1774 // NOTE: in GF model, calc_lead_tissue_limit include already the |
|
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|
1775 // correction due to gradient factor. To compute the actual |
|
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|
1776 // current GF, we need to (re-)compute the raw ambiant-pressure |
|
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|
1777 // limit from the Bühlmann model. |
| 509 | 1778 if( char_I_deco_model != 0 ) |
|
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|
1779 { |
|
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|
1780 ci = char_O_gtissue_no; |
|
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|
1781 read_buhlmann_coefficients(); |
|
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|
1782 var_N2_a = (var_N2_a * N2 + var_He_a * He) / temp_tissue; |
|
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|
1783 var_N2_b = (var_N2_b * N2 + var_He_b * He) / temp_tissue; |
|
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|
1784 limit = (temp_tissue - var_N2_a) * var_N2_b; |
|
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|
1785 } |
|
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|
1786 |
|
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|
1787 gf = (temp_tissue - pres_respiration) |
|
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|
1788 / (temp_tissue - limit) |
|
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|
1789 * 100.0; |
|
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|
1790 if( gf > 254.5 ) gf = 255.0; |
| 197 | 1791 if( gf < 0.0 ) gf = 0.0; |
| 1792 } | |
|
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1793 char_O_gradient_factor = (unsigned char)(gf+0.5f); |
| 116 | 1794 |
|
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1795 if( char_I_deco_model != 0 ) // calculate relative gradient factor |
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1796 { |
| 197 | 1797 overlay float rgf; |
| 1798 | |
|
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1799 if( low_depth < 3 ) |
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1800 rgf = GF_high; |
| 197 | 1801 else |
| 1802 { | |
| 317 | 1803 overlay float temp1 = low_depth * METER_TO_BAR; |
| 197 | 1804 overlay float temp2 = pres_respiration - pres_surface; |
| 186 | 1805 |
| 197 | 1806 if (temp2 <= 0) |
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1807 rgf = GF_high; |
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1808 else if (temp2 >= temp1) |
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1809 rgf = GF_low; |
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1810 else |
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1811 rgf = GF_low + (temp1 - temp2)/temp1*GF_delta; |
| 197 | 1812 } |
| 186 | 1813 |
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1814 rgf = gf / rgf; // gf is already in percent |
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1815 if( rgf < 0.0 ) rgf = 0.0; |
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1816 if( rgf > 254.5 ) rgf = 255.0; |
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1817 char_O_relative_gradient_GF = (unsigned char)(rgf+0.5f); |
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1818 } // calc relative gradient factor |
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1819 else |
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1820 { |
| 186 | 1821 char_O_relative_gradient_GF = char_O_gradient_factor; |
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1822 } |
| 167 | 1823 } |
| 116 | 1824 |
| 167 | 1825 ////////////////////////////////////////////////////////////////////////////// |
| 1826 // deco_calc_desaturation_time | |
| 1827 // | |
| 116 | 1828 // FIXED N2_ratio |
| 1829 // unchanged in v.101 | |
|
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1830 // Inputs: int_I_pres_surface, ppWater, char_I_desaturation_multiplier |
| 233 | 1831 // Outputs: int_O_desaturation_time, char_O_tissue_saturation[0..31] |
| 167 | 1832 // |
| 116 | 1833 void deco_calc_desaturation_time(void) |
| 1834 { | |
|
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1835 RESET_C_STACK |
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1836 |
| 233 | 1837 assert( 800 < int_I_pres_surface && int_I_pres_surface < 1100 ); |
| 1838 assert( 0 < char_I_desaturation_multiplier && char_I_desaturation_multiplier <= 100 ); | |
| 1839 | |
| 237 | 1840 N2_ratio = 0.7902; // FIXED sum as stated in bühlmann |
| 233 | 1841 pres_surface = int_I_pres_surface * 0.001; |
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1842 ppN2 = N2_ratio * (pres_surface - ppWater); |
| 126 | 1843 int_O_desaturation_time = 0; |
|
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1844 float_desaturation_multiplier = char_I_desaturation_multiplier * (0.01 * SURFACE_DESAT_FACTOR); |
| 233 | 1845 |
| 339 | 1846 for(ci=0; ci<NUM_COMP; ci++) |
| 126 | 1847 { |
| 251 | 1848 overlay unsigned short desat_time; // For a particular compartiment, in min. |
| 1849 overlay float temp1; | |
| 1850 overlay float temp2; | |
| 1851 overlay float temp3; | |
| 1852 overlay float temp4; | |
| 338 | 1853 |
| 509 | 1854 read_buhlmann_ht(); |
| 338 | 1855 |
| 126 | 1856 // saturation_time (for flight) and N2_saturation in multiples of halftime |
| 1857 // version v.100: 1.1 = 10 percent distance to totally clean (totally clean is not possible, would take infinite time ) | |
| 1858 // new in version v.101: 1.07 = 7 percent distance to totally clean (totally clean is not possible, would take infinite time ) | |
|
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1859 // changes in v.101: 1.05 = 5 percent dist to totally clean is new desaturation point for display and NoFly calculations |
| 126 | 1860 // N2 |
| 339 | 1861 temp1 = 1.05 * ppN2 - pres_tissue_N2[ci]; |
| 1862 temp2 = ppN2 - pres_tissue_N2[ci]; | |
| 126 | 1863 if (temp2 >= 0.0) |
| 233 | 1864 temp1 = 0.0; |
| 126 | 1865 else |
| 1866 temp1 = temp1 / temp2; | |
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1867 |
| 251 | 1868 if( 0.0 < temp1 && temp1 < 1.0 ) |
| 126 | 1869 { |
|
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1870 // 0.6931 is ln(2), because the math function log() calculates with a base of e not 2 as requested. |
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1871 // minus because log is negative. |
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1872 temp1 = log(1.0 - temp1) / -0.6931; // temp1 is the multiples of half times necessary. |
| 509 | 1873 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 |
|
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1874 |
| 126 | 1875 } |
| 1876 else | |
| 1877 { | |
| 233 | 1878 temp1 = 0.0; |
| 1879 temp2 = 0.0; | |
| 126 | 1880 } |
| 116 | 1881 |
| 126 | 1882 // He |
| 339 | 1883 temp3 = 0.1 - pres_tissue_He[ci]; |
| 126 | 1884 if (temp3 >= 0.0) |
| 233 | 1885 temp3 = 0.0; |
| 126 | 1886 else |
| 339 | 1887 temp3 = - temp3 / pres_tissue_He[ci]; |
|
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1888 |
| 251 | 1889 if( 0.0 < temp3 && temp3 < 1.0 ) |
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1890 { |
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1891 temp3 = log(1.0 - temp3) / -0.6931; // temp1 is the multiples of half times necessary. |
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1892 // 0.6931 is ln(2), because the math function log() calculates with a base of e not 2 as requested. |
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1893 // minus because log is negative |
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1894 temp4 = var_He_ht * temp3 / float_desaturation_multiplier; // time necessary (in minutes ) for "complete" desaturation, new in v.101 float_desaturation_multiplier |
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1895 } |
| 126 | 1896 else |
|
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1897 { |
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1898 temp3 = 0.0; |
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1899 temp4 = 0.0; |
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1900 } |
| 116 | 1901 |
| 126 | 1902 // saturation_time (for flight) |
| 1903 if (temp4 > temp2) | |
| 203 | 1904 desat_time = (unsigned short)temp4; |
| 126 | 1905 else |
| 203 | 1906 desat_time = (unsigned short)temp2; |
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1907 |
| 251 | 1908 if(desat_time > int_O_desaturation_time) |
| 1909 int_O_desaturation_time = desat_time; | |
| 116 | 1910 |
| 126 | 1911 // N2 saturation in multiples of halftime for display purposes |
| 339 | 1912 temp2 = temp1 * 20.0; // 0 = 1/8, 120 = 0, 249 = 8 |
| 1913 temp2 = temp2 + 80.0; // set center | |
| 126 | 1914 if (temp2 < 0.0) |
| 1915 temp2 = 0.0; | |
| 1916 if (temp2 > 255.0) | |
| 1917 temp2 = 255.0; | |
| 339 | 1918 char_O_tissue_N2_saturation[ci] = (char)temp2; |
| 233 | 1919 |
| 126 | 1920 // He saturation in multiples of halftime for display purposes |
| 339 | 1921 temp4 = temp3 * 20.0; // 0 = 1/8, 120 = 0, 249 = 8 |
| 1922 temp4 = temp4 + 80.0; // set center | |
| 126 | 1923 if (temp4 < 0.0) |
| 1924 temp4 = 0.0; | |
| 1925 if (temp4 > 255.0) | |
| 1926 temp4 = 255.0; | |
| 339 | 1927 char_O_tissue_He_saturation[ci] = (char)temp4; |
| 126 | 1928 } // for |
| 167 | 1929 } |
| 116 | 1930 |
| 167 | 1931 ////////////////////////////////////////////////////////////////////////////// |
| 1932 // calc_wo_deco_step_1_min | |
| 1933 // | |
| 116 | 1934 // FIXED N2 Ratio |
| 1935 // optimized in v.101 (...saturation_multiplier) | |
| 1936 // desaturation slowed down to 70,42% | |
| 167 | 1937 // |
| 1938 static void calc_wo_deco_step_1_min(void) | |
| 116 | 1939 { |
| 251 | 1940 assert( 800 < int_I_pres_surface && int_I_pres_surface < 1100 ); |
| 1941 assert( 800 < int_I_pres_respiration && int_I_pres_respiration < 1100 ); | |
| 1942 assert( 100 <= char_I_saturation_multiplier && char_I_saturation_multiplier < 200 ); | |
| 1943 assert( 0 < char_I_desaturation_multiplier && char_I_desaturation_multiplier <= 100 ); | |
| 1944 | |
| 126 | 1945 N2_ratio = 0.7902; // FIXED, sum lt. buehlmann |
| 368 | 1946 pres_respiration = pres_surface = int_I_pres_surface * 0.001; |
| 1947 ppN2 = N2_ratio * (pres_respiration - ppWater); | |
| 200 | 1948 ppHe = 0.0; |
|
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1949 float_desaturation_multiplier = char_I_desaturation_multiplier * (0.01 * SURFACE_DESAT_FACTOR); |
| 197 | 1950 float_saturation_multiplier = char_I_saturation_multiplier * 0.01; |
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1951 |
| 339 | 1952 calc_tissue(1); // update the pressure in the tissues N2/He in accordance with the new ambient pressure |
|
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1953 |
|
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1954 clear_deco_table(); |
| 200 | 1955 char_O_deco_status = 3; // surface new in v.102 : stays in surface state. |
| 126 | 1956 char_O_nullzeit = 0; |
| 168 | 1957 int_O_ascenttime = 0; |
| 323 | 1958 int_O_extra_ascenttime = 0; |
| 126 | 1959 calc_gradient_factor(); |
| 167 | 1960 } |
| 126 | 1961 |
| 167 | 1962 ////////////////////////////////////////////////////////////////////////////// |
| 368 | 1963 // calc_dive_interval |
| 1964 // | |
| 1965 // Prepare tissue for delay before the next dive simulation. | |
| 1966 // | |
| 1967 // Inputs: char_I_dive_interval == delay before dive (in 10' steps). | |
| 1968 // Outputs: pres_tissue_N2/He[], CNS_fraction | |
| 1969 // | |
| 1970 // Should be protected by deco_push_tissues_to_vault(), | |
| 1971 // deco_pull_tissues_from_vault() | |
| 1972 // | |
| 1973 // desaturation slowed down to 70,42%. | |
| 1974 // | |
|
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1975 static void calc_dive_interval(void) |
| 368 | 1976 { |
| 1977 overlay unsigned char t; | |
|
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1978 overlay unsigned char backup_model; |
| 368 | 1979 |
| 1980 //---- Initialize simulation parameters ---------------------------------- | |
| 1981 N2_ratio = 0.7902; // FIXED, sum lt. buehlmann | |
| 1982 pres_respiration = pres_surface = int_I_pres_surface * 0.001; | |
| 1983 ppN2 = N2_ratio * (pres_respiration - ppWater); | |
| 1984 ppHe = 0.0; | |
|
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|
1985 float_desaturation_multiplier = char_I_desaturation_multiplier * (0.01 * SURFACE_DESAT_FACTOR); |
| 368 | 1986 float_saturation_multiplier = char_I_saturation_multiplier * 0.01; |
| 1987 | |
| 568 | 1988 // Make sure SURFACE_DESAT_FACTOR is applied: |
|
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1989 backup_model = char_I_deco_model; |
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|
1990 char_I_deco_model = 0; |
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|
1991 |
| 368 | 1992 //---- Perform simulation ------------------------------------------------ |
| 1993 for(t=0; t<char_I_dive_interval; ++t) | |
| 1994 { | |
| 1995 calc_tissue(2); // period = 10min. | |
| 1996 CNS_fraction = 0.92587471 * CNS_fraction; // Half-time = 90min: (1/2)^(1/9) | |
| 1997 } | |
| 514 | 1998 assert( 0.0 <= CNS_fraction && CNS_fraction <= 2.56 ); |
| 1999 char_O_CNS_fraction = (unsigned char)(CNS_fraction * 100.0 + 0.5); | |
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|
2000 |
|
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2001 //---- Restore model ----------------------------------------------------- |
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2002 char_I_deco_model = backup_model; |
| 368 | 2003 } |
| 2004 | |
| 2005 ////////////////////////////////////////////////////////////////////////////// | |
| 167 | 2006 ////////////////////////////////////////////////////////////////////////////// |
| 2007 ////////////////////////////////// deco_hash ///////////////////////////////// | |
| 2008 ////////////////////////////////////////////////////////////////////////////// | |
| 2009 ////////////////////////////////////////////////////////////////////////////// | |
| 126 | 2010 |
| 184 | 2011 #ifndef CROSS_COMPILE |
| 116 | 2012 void deco_hash(void) |
| 2013 { | |
| 167 | 2014 overlay unsigned char md_i, md_j; // Loop index. |
| 2015 overlay unsigned char md_t; | |
| 2016 overlay unsigned char md_buffer[16]; | |
| 2017 overlay unsigned char md_temp; | |
| 203 | 2018 overlay unsigned short md_pointer; |
| 167 | 2019 |
|
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2020 RESET_C_STACK |
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|
2021 |
| 126 | 2022 // init |
| 164 | 2023 for(md_i=0;md_i<16;md_i++) |
| 126 | 2024 { |
| 2025 md_state[md_i] = 0; | |
| 164 | 2026 char_O_hash[md_i] = 0; |
| 126 | 2027 } // for md_i 16 |
| 116 | 2028 |
| 126 | 2029 _asm |
| 167 | 2030 movlw 0x01 // md_pi address. |
| 2031 movwf TBLPTRU,0 | |
| 2032 movlw 0x7E | |
| 2033 movwf TBLPTRH,0 | |
| 2034 movlw 0x00 | |
| 2035 movwf TBLPTRL,0 | |
| 126 | 2036 _endasm; |
| 165 | 2037 md_i = 0; |
| 2038 do { | |
| 126 | 2039 _asm |
| 2040 TBLRDPOSTINC | |
| 2041 movff TABLAT,md_temp | |
| 2042 _endasm | |
| 165 | 2043 md_pi_subst[md_i++] = md_temp; |
| 2044 } while( md_i != 0 ); | |
| 2045 | |
| 126 | 2046 _asm |
| 167 | 2047 movlw 0x00 |
| 2048 movwf TBLPTRU,0 | |
| 2049 movlw 0x00 | |
| 2050 movwf TBLPTRH,0 | |
| 2051 movlw 0x00 | |
| 2052 movwf TBLPTRL,0 | |
| 126 | 2053 _endasm |
| 167 | 2054 |
| 126 | 2055 // cycle buffers |
| 2056 for (md_pointer=0x0000;md_pointer<0x17f3;md_pointer++) | |
| 2057 { | |
| 2058 md_t = 0; | |
| 2059 for (md_i=0;md_i<16;md_i++) | |
| 2060 { | |
| 2061 if(md_pointer == 9) | |
| 164 | 2062 md_temp = char_O_hash[md_i]; |
| 126 | 2063 else |
| 2064 { | |
| 2065 _asm | |
| 167 | 2066 TBLRDPOSTINC |
| 2067 movff TABLAT,md_temp | |
| 126 | 2068 _endasm |
| 2069 } // else | |
| 167 | 2070 |
| 2071 md_buffer[md_i] = md_temp; | |
| 186 | 2072 md_state[md_i+16] = md_temp; |
| 2073 md_state[md_i+32] = (unsigned char)(md_temp ^ md_state[md_i]); | |
| 126 | 2074 } // for md_i 16 |
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|
2075 |
| 126 | 2076 for (md_i=0;md_i<18;md_i++) |
| 2077 { | |
| 2078 for (md_j=0;md_j<48;md_j++) | |
| 2079 { | |
| 167 | 2080 md_state[md_j] ^= md_pi_subst[md_t]; |
| 126 | 2081 md_t = md_state[md_j]; |
| 2082 } // for md_j 48 | |
| 2083 md_t = (unsigned char)(md_t+1); | |
| 2084 } // for md_i 18 | |
| 164 | 2085 md_t = char_O_hash[15]; |
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|
2086 |
| 126 | 2087 for (md_i=0;md_i<16;md_i++) |
| 2088 { | |
| 167 | 2089 char_O_hash[md_i] ^= md_pi_subst[(md_buffer[md_i] ^ md_t)]; |
| 164 | 2090 md_t = char_O_hash[md_i]; |
| 126 | 2091 } // for md_i 16 |
| 2092 } // for md_pointer | |
| 116 | 2093 } // void deco_hash(void) |
| 184 | 2094 #endif |
| 116 | 2095 |
| 167 | 2096 ////////////////////////////////////////////////////////////////////////////// |
| 2097 // deco_clear_CNS_fraction | |
| 2098 // | |
| 116 | 2099 // new in v.101 |
| 167 | 2100 // |
| 116 | 2101 void deco_clear_CNS_fraction(void) |
| 2102 { | |
|
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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
|
2103 RESET_C_STACK |
| 237 | 2104 |
| 126 | 2105 CNS_fraction = 0.0; |
| 2106 char_O_CNS_fraction = 0; | |
| 167 | 2107 } |
| 116 | 2108 |
| 167 | 2109 ////////////////////////////////////////////////////////////////////////////// |
| 2110 // deco_calc_CNS_fraction | |
| 2111 // | |
|
439
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
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388
diff
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|
2112 // Input: char_I_actual_ppO2 : Current condition (in decibars). |
|
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
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388
diff
changeset
|
2113 // char_I_step_is_1min : use 1min or 10min steps instead of 2sec. |
|
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
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parents:
388
diff
changeset
|
2114 // CNS_fraction : velue before period. |
|
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
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388
diff
changeset
|
2115 // Output: CNS_fraction, char_O_CNS_fraction |
| 167 | 2116 // |
| 116 | 2117 void deco_calc_CNS_fraction(void) |
| 2118 { | |
|
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
2119 overlay float time_factor = 1.0f; |
| 126 | 2120 RESET_C_STACK |
| 167 | 2121 |
| 471 | 2122 assert( 0.0 <= CNS_fraction && CNS_fraction <= 2.56 ); |
| 237 | 2123 assert( char_I_actual_ppO2 > 15 ); |
| 2124 | |
|
439
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
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388
diff
changeset
|
2125 if( char_I_step_is_1min == 1 ) |
| 292 | 2126 time_factor = 30.0f; |
|
439
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BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
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388
diff
changeset
|
2127 else if( char_I_step_is_1min == 2 ) |
|
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
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388
diff
changeset
|
2128 time_factor = 300.0f; |
| 710 | 2129 //------------------------------------------------------------------------ |
| 2130 // Don't increase CNS below 0.5 bar, but keep it steady. | |
| 126 | 2131 if (char_I_actual_ppO2 < 50) |
| 292 | 2132 ; // no changes |
| 710 | 2133 //------------------------------------------------------------------------ |
| 2134 // Below (and including) 1.60 bar | |
|
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
2135 else if (char_I_actual_ppO2 < 61) |
| 710 | 2136 CNS_fraction += time_factor/(-533.07 * char_I_actual_ppO2 + 54000.0); |
|
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
2137 else if (char_I_actual_ppO2 < 71) |
| 710 | 2138 CNS_fraction += time_factor/(-444.22 * char_I_actual_ppO2 + 48600.0); |
|
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
2139 else if (char_I_actual_ppO2 < 81) |
| 710 | 2140 CNS_fraction += time_factor/(-355.38 * char_I_actual_ppO2 + 42300.0); |
|
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
2141 else if (char_I_actual_ppO2 < 91) |
| 710 | 2142 CNS_fraction += time_factor/(-266.53 * char_I_actual_ppO2 + 35100.0); |
|
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
2143 else if (char_I_actual_ppO2 < 111) |
| 710 | 2144 CNS_fraction += time_factor/(-177.69 * char_I_actual_ppO2 + 27000.0); |
|
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
2145 else if (char_I_actual_ppO2 < 152) |
| 710 | 2146 CNS_fraction += time_factor/( -88.84 * char_I_actual_ppO2 + 17100.0); |
|
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
2147 else if (char_I_actual_ppO2 < 167) |
| 710 | 2148 CNS_fraction += time_factor/(-222.11 * char_I_actual_ppO2 + 37350.0); |
| 2149 //------------------------------------------------------------------------ | |
| 2150 // Arieli et all.(2002): Modeling pulmonary and CNS O2 toxicity: | |
| 2151 // J Appl Physiol 92: 248–256, 2002, doi:10.1152/japplphysiol.00434.2001 | |
| 2152 // Formula (A1) based on value for 1.55 and c=20 | |
| 2153 // example calculation: Sqrt((1.7/1.55)^20)*0.000404 | |
|
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
2154 else if (char_I_actual_ppO2 < 172) |
|
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
2155 CNS_fraction += time_factor*0.00102; |
|
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
2156 else if (char_I_actual_ppO2 < 177) |
| 292 | 2157 CNS_fraction += time_factor*0.00136; |
|
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
2158 else if (char_I_actual_ppO2 < 182) |
| 292 | 2159 CNS_fraction += time_factor*0.00180; |
|
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
2160 else if (char_I_actual_ppO2 < 187) |
| 292 | 2161 CNS_fraction += time_factor*0.00237; |
|
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
2162 else if (char_I_actual_ppO2 < 192) |
| 292 | 2163 CNS_fraction += time_factor*0.00310; |
|
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
2164 else if (char_I_actual_ppO2 < 198) |
| 292 | 2165 CNS_fraction += time_factor*0.00401; |
|
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
2166 else if (char_I_actual_ppO2 < 203) |
| 292 | 2167 CNS_fraction += time_factor*0.00517; |
|
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
2168 else if (char_I_actual_ppO2 < 233) |
| 292 | 2169 CNS_fraction += time_factor*0.0209; |
| 126 | 2170 else |
| 292 | 2171 CNS_fraction += time_factor*0.0482; // value for 2.5 |
| 116 | 2172 |
| 514 | 2173 if( CNS_fraction > 2.5 ) |
|
439
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
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388
diff
changeset
|
2174 CNS_fraction = 2.55; |
| 514 | 2175 if( CNS_fraction < 0.0 ) |
| 126 | 2176 CNS_fraction = 0.0; |
| 2177 | |
|
443
4c7f304de294
BUGFIX: infinite loop for Decoplaner's CNS in CCR mode.
JeanDo
parents:
441
diff
changeset
|
2178 char_O_CNS_fraction = (unsigned char)(100.0 * CNS_fraction + 0.5); |
| 167 | 2179 } |
| 116 | 2180 |
| 167 | 2181 ////////////////////////////////////////////////////////////////////////////// |
|
439
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
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388
diff
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|
2182 // deco_calc_CNS_planning |
|
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
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388
diff
changeset
|
2183 // |
|
511
2a6293641d51
NEW NDL NDL faster/more precise simu (but no closed formula for trimix).
JeanDo
parents:
509
diff
changeset
|
2184 // Compute CNS during predicted ascent. |
| 488 | 2185 // |
|
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
2186 // Note: Needs a call to deco_push_tissues_to_vault(), |
| 488 | 2187 // deco_pull_tissues_from_vault() to avoid trashing everything... |
| 2188 // | |
| 2189 // Input: CNS_fraction, char_O_deco_time[], char_O_deco_depth[] | |
| 2190 // Output: CNS_fraction, char_O_CNS_fraction | |
| 2191 // | |
|
439
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
JeanDo
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388
diff
changeset
|
2192 void deco_calc_CNS_planning(void) |
|
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
JeanDo
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388
diff
changeset
|
2193 { |
|
490
68aa097f0062
BUGFIX (minor) deco_calc_CNS_planning should save ppO2 and gas switch history.
JeanDo
parents:
488
diff
changeset
|
2194 overlay unsigned char backup_gas_last_depth; |
|
68aa097f0062
BUGFIX (minor) deco_calc_CNS_planning should save ppO2 and gas switch history.
JeanDo
parents:
488
diff
changeset
|
2195 overlay unsigned char backup_gas_last_used; |
|
68aa097f0062
BUGFIX (minor) deco_calc_CNS_planning should save ppO2 and gas switch history.
JeanDo
parents:
488
diff
changeset
|
2196 overlay unsigned short backup_dive_mins; |
|
68aa097f0062
BUGFIX (minor) deco_calc_CNS_planning should save ppO2 and gas switch history.
JeanDo
parents:
488
diff
changeset
|
2197 overlay unsigned char backup_actual_ppO2; |
|
68aa097f0062
BUGFIX (minor) deco_calc_CNS_planning should save ppO2 and gas switch history.
JeanDo
parents:
488
diff
changeset
|
2198 |
|
439
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
JeanDo
parents:
388
diff
changeset
|
2199 RESET_C_STACK |
|
490
68aa097f0062
BUGFIX (minor) deco_calc_CNS_planning should save ppO2 and gas switch history.
JeanDo
parents:
488
diff
changeset
|
2200 |
|
68aa097f0062
BUGFIX (minor) deco_calc_CNS_planning should save ppO2 and gas switch history.
JeanDo
parents:
488
diff
changeset
|
2201 // Backup state machine |
|
68aa097f0062
BUGFIX (minor) deco_calc_CNS_planning should save ppO2 and gas switch history.
JeanDo
parents:
488
diff
changeset
|
2202 backup_gas_last_depth = sim_gas_last_depth; |
|
68aa097f0062
BUGFIX (minor) deco_calc_CNS_planning should save ppO2 and gas switch history.
JeanDo
parents:
488
diff
changeset
|
2203 backup_gas_last_used = sim_gas_last_used; |
|
68aa097f0062
BUGFIX (minor) deco_calc_CNS_planning should save ppO2 and gas switch history.
JeanDo
parents:
488
diff
changeset
|
2204 backup_dive_mins = sim_dive_mins; |
|
68aa097f0062
BUGFIX (minor) deco_calc_CNS_planning should save ppO2 and gas switch history.
JeanDo
parents:
488
diff
changeset
|
2205 backup_actual_ppO2 = char_I_actual_ppO2; |
|
68aa097f0062
BUGFIX (minor) deco_calc_CNS_planning should save ppO2 and gas switch history.
JeanDo
parents:
488
diff
changeset
|
2206 |
|
439
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
JeanDo
parents:
388
diff
changeset
|
2207 // Uses 1min CNS period: |
|
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
JeanDo
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388
diff
changeset
|
2208 char_I_step_is_1min = 1; |
|
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
2209 |
|
439
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
JeanDo
parents:
388
diff
changeset
|
2210 //---- Retrieve bottom Gas used, and set variables. |
|
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
JeanDo
parents:
388
diff
changeset
|
2211 sim_gas_last_used = char_I_first_gas; |
|
443
4c7f304de294
BUGFIX: infinite loop for Decoplaner's CNS in CCR mode.
JeanDo
parents:
441
diff
changeset
|
2212 sim_gas_last_depth = 0; // Surface gas marker. |
|
4c7f304de294
BUGFIX: infinite loop for Decoplaner's CNS in CCR mode.
JeanDo
parents:
441
diff
changeset
|
2213 gas_switch_set(); // Sets initial calc_N2/He_ratio |
|
439
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
JeanDo
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388
diff
changeset
|
2214 |
| 743 | 2215 //---- CCR mode : do the full CNS at once -------------------------------- |
|
439
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
JeanDo
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388
diff
changeset
|
2216 if( char_I_const_ppO2 != 0 ) |
|
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
JeanDo
parents:
388
diff
changeset
|
2217 { |
|
443
4c7f304de294
BUGFIX: infinite loop for Decoplaner's CNS in CCR mode.
JeanDo
parents:
441
diff
changeset
|
2218 overlay unsigned short t; // Needs 16bits here ! |
|
439
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
JeanDo
parents:
388
diff
changeset
|
2219 char_I_actual_ppO2 = char_I_const_ppO2; |
|
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
JeanDo
parents:
388
diff
changeset
|
2220 for(t=0; t<int_O_ascenttime; ++t) |
|
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
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parents:
388
diff
changeset
|
2221 deco_calc_CNS_fraction(); |
|
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
JeanDo
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388
diff
changeset
|
2222 } |
|
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
JeanDo
parents:
388
diff
changeset
|
2223 else //---- OC mode : have to follow all gas switches... ----------------- |
|
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
JeanDo
parents:
388
diff
changeset
|
2224 { |
|
443
4c7f304de294
BUGFIX: infinite loop for Decoplaner's CNS in CCR mode.
JeanDo
parents:
441
diff
changeset
|
2225 overlay unsigned char i = 0; // Decostop loop counter |
|
439
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
JeanDo
parents:
388
diff
changeset
|
2226 overlay float actual_ppO2; |
|
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
JeanDo
parents:
388
diff
changeset
|
2227 overlay unsigned char time, t; |
| 563 | 2228 overlay unsigned char deepest_first = (read_custom_function(54) == 0); |
|
439
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
JeanDo
parents:
388
diff
changeset
|
2229 |
|
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
JeanDo
parents:
388
diff
changeset
|
2230 //---- Ascent to surface delay |
|
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
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parents:
388
diff
changeset
|
2231 // NOTE: count as if time is spent with bottom pressure, |
|
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
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parents:
388
diff
changeset
|
2232 // AND the bottom gas |
|
541
6626a6c4eda3
BUGFIX decoplan: ppO2 for CNS is inspired, alveolar (ie. no ppWater correction).
JeanDo
parents:
540
diff
changeset
|
2233 actual_ppO2 = (pres_surface + char_I_bottom_depth * METER_TO_BAR) |
|
439
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
JeanDo
parents:
388
diff
changeset
|
2234 * (1.0 - calc_N2_ratio - calc_He_ratio); |
|
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
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388
diff
changeset
|
2235 if( actual_ppO2 < 0.0 ) actual_ppO2 = 0.0; |
|
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
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388
diff
changeset
|
2236 if( actual_ppO2 > 2.50 ) actual_ppO2 = 2.55; |
|
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
JeanDo
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388
diff
changeset
|
2237 char_I_actual_ppO2 = (unsigned char)(100.0 * actual_ppO2 + 0.5); |
|
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
JeanDo
parents:
388
diff
changeset
|
2238 |
|
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
JeanDo
parents:
388
diff
changeset
|
2239 // Ascent time (rounded up): |
|
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
JeanDo
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388
diff
changeset
|
2240 time = (unsigned char)(0.1 * char_I_bottom_depth + 0.5); |
|
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
JeanDo
parents:
388
diff
changeset
|
2241 |
|
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
JeanDo
parents:
388
diff
changeset
|
2242 for(t=0; t<time; ++t) |
|
490
68aa097f0062
BUGFIX (minor) deco_calc_CNS_planning should save ppO2 and gas switch history.
JeanDo
parents:
488
diff
changeset
|
2243 { |
|
439
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
JeanDo
parents:
388
diff
changeset
|
2244 deco_calc_CNS_fraction(); |
|
490
68aa097f0062
BUGFIX (minor) deco_calc_CNS_planning should save ppO2 and gas switch history.
JeanDo
parents:
488
diff
changeset
|
2245 sim_dive_mins++; |
|
68aa097f0062
BUGFIX (minor) deco_calc_CNS_planning should save ppO2 and gas switch history.
JeanDo
parents:
488
diff
changeset
|
2246 } |
|
439
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
JeanDo
parents:
388
diff
changeset
|
2247 |
| 563 | 2248 //---- Do all further stops ------------------------------------------ |
|
439
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
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parents:
388
diff
changeset
|
2249 for(i=0; i<NUM_STOPS; ++i) |
|
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
JeanDo
parents:
388
diff
changeset
|
2250 { |
|
766
3b1af9891019
BUGFIX: CNS calculation in decoplan should track gas (no marked changes anymore)
JeanDo
parents:
757
diff
changeset
|
2251 overlay unsigned char stop_gas; |
| 563 | 2252 |
| 2253 //---- Get next stop, possibly in reverse order ------------------ | |
| 2254 if( deepest_first ) | |
| 2255 { | |
| 2256 time = char_O_deco_time[i]; | |
| 2257 temp_depth_limit = char_O_deco_depth[i]; | |
|
766
3b1af9891019
BUGFIX: CNS calculation in decoplan should track gas (no marked changes anymore)
JeanDo
parents:
757
diff
changeset
|
2258 stop_gas = char_O_deco_gas[i]; |
| 563 | 2259 } |
| 2260 else | |
| 2261 { | |
| 2262 time = char_O_deco_time[(NUM_STOPS-1)-i]; | |
| 2263 temp_depth_limit = char_O_deco_depth[(NUM_STOPS-1)-i]; | |
|
766
3b1af9891019
BUGFIX: CNS calculation in decoplan should track gas (no marked changes anymore)
JeanDo
parents:
757
diff
changeset
|
2264 stop_gas = char_O_deco_gas[(NUM_STOPS-1)-i]; |
| 563 | 2265 } |
| 2266 if( time == 0 ) continue; | |
|
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
2267 |
| 563 | 2268 //---- Gas Switch ? ---------------------------------------------- |
|
766
3b1af9891019
BUGFIX: CNS calculation in decoplan should track gas (no marked changes anymore)
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parents:
757
diff
changeset
|
2269 if( stop_gas != sim_gas_last_used ) |
| 563 | 2270 { |
|
766
3b1af9891019
BUGFIX: CNS calculation in decoplan should track gas (no marked changes anymore)
JeanDo
parents:
757
diff
changeset
|
2271 sim_gas_last_depth = deco_gas_change[stop_gas-1]; |
|
3b1af9891019
BUGFIX: CNS calculation in decoplan should track gas (no marked changes anymore)
JeanDo
parents:
757
diff
changeset
|
2272 sim_gas_last_used = stop_gas; |
| 563 | 2273 gas_switch_set(); |
| 2274 } | |
| 2275 | |
| 2276 //---- Convert Depth and N2_ratio to ppO2 ------------------------ | |
|
541
6626a6c4eda3
BUGFIX decoplan: ppO2 for CNS is inspired, alveolar (ie. no ppWater correction).
JeanDo
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540
diff
changeset
|
2277 actual_ppO2 = (pres_surface + temp_depth_limit * METER_TO_BAR) |
|
439
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
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388
diff
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|
2278 * (1.0 - calc_N2_ratio - calc_He_ratio); |
|
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
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388
diff
changeset
|
2279 if( actual_ppO2 < 0.0 ) actual_ppO2 = 0.0; |
|
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
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388
diff
changeset
|
2280 if( actual_ppO2 > 2.50 ) actual_ppO2 = 2.55; |
|
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
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388
diff
changeset
|
2281 char_I_actual_ppO2 = (unsigned char)(100.0 * actual_ppO2 + 0.5); |
|
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
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diff
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|
2282 |
|
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BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
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diff
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|
2283 //---- Apply the stop |
|
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
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diff
changeset
|
2284 for(t=0; t<time; ++t) |
|
490
68aa097f0062
BUGFIX (minor) deco_calc_CNS_planning should save ppO2 and gas switch history.
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488
diff
changeset
|
2285 { |
|
439
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diff
changeset
|
2286 deco_calc_CNS_fraction(); |
|
490
68aa097f0062
BUGFIX (minor) deco_calc_CNS_planning should save ppO2 and gas switch history.
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diff
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|
2287 sim_dive_mins++; |
|
68aa097f0062
BUGFIX (minor) deco_calc_CNS_planning should save ppO2 and gas switch history.
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diff
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|
2288 } |
|
439
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BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
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diff
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|
2289 } |
| 488 | 2290 } |
| 2291 | |
| 563 | 2292 //---- Back to normal mode... -------------------------------------------- |
| 488 | 2293 char_I_step_is_1min = 0; |
|
490
68aa097f0062
BUGFIX (minor) deco_calc_CNS_planning should save ppO2 and gas switch history.
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diff
changeset
|
2294 sim_gas_last_depth = backup_gas_last_depth; |
|
68aa097f0062
BUGFIX (minor) deco_calc_CNS_planning should save ppO2 and gas switch history.
JeanDo
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488
diff
changeset
|
2295 sim_gas_last_used = backup_gas_last_used; |
|
68aa097f0062
BUGFIX (minor) deco_calc_CNS_planning should save ppO2 and gas switch history.
JeanDo
parents:
488
diff
changeset
|
2296 sim_dive_mins = backup_dive_mins; |
|
68aa097f0062
BUGFIX (minor) deco_calc_CNS_planning should save ppO2 and gas switch history.
JeanDo
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488
diff
changeset
|
2297 char_I_actual_ppO2 = backup_actual_ppO2; |
|
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
2298 } |
|
439
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BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
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diff
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|
2299 |
|
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
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diff
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|
2300 ////////////////////////////////////////////////////////////////////////////// |
| 167 | 2301 // deco_calc_CNS_decrease_15min |
| 2302 // | |
| 116 | 2303 // new in v.101 |
| 167 | 2304 // |
| 116 | 2305 // calculates the half time of 90 minutes in 6 steps of 15 min |
| 200 | 2306 // (Used in sleepmode, for low battery mode). |
| 167 | 2307 // |
| 116 | 2308 // Output: char_O_CNS_fraction |
| 2309 // Uses and Updates: CNS_fraction | |
| 167 | 2310 // |
| 116 | 2311 void deco_calc_CNS_decrease_15min(void) |
| 2312 { | |
| 237 | 2313 RESET_C_STACK |
| 514 | 2314 assert( 0.0 <= CNS_fraction && CNS_fraction <= 2.56 ); |
| 237 | 2315 |
| 126 | 2316 CNS_fraction = 0.890899 * CNS_fraction; |
| 514 | 2317 char_O_CNS_fraction = (unsigned char)(CNS_fraction * 100.0 + 0.5); |
| 167 | 2318 } |
| 116 | 2319 |
| 167 | 2320 ////////////////////////////////////////////////////////////////////////////// |
| 2321 // deco_calc_percentage | |
| 2322 // | |
| 116 | 2323 // new in v.101 |
| 167 | 2324 // |
| 116 | 2325 // calculates int_I_temp * char_I_temp / 100 |
| 2326 // output is int_I_temp | |
| 200 | 2327 // |
| 2328 // Used to compute NoFly remaining time. | |
|
222
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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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|
2329 // |
| 116 | 2330 void deco_calc_percentage(void) |
| 2331 { | |
|
122
3003a8040b78
FIX again reset C data stack and frame pointer when entering C code.
JeanDo
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116
diff
changeset
|
2332 RESET_C_STACK |
|
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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|
2333 |
| 237 | 2334 assert( 60 <= char_I_temp && char_I_temp <= 100 ); |
| 564 | 2335 assert( int_I_temp < 5760 ); // Less than 4 days = 96h... |
| 237 | 2336 |
|
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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218
diff
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|
2337 int_I_temp = (unsigned short)(((float)int_I_temp * (float)char_I_temp) * 0.01 ); |
| 237 | 2338 |
|
554
896b6346ccd2
CHANGE: Allow up to 96h desat when computing NoFly (OSTC Planner).
JeanDo
parents:
541
diff
changeset
|
2339 assert( int_I_temp < 5760 ); // Less than 96h too... |
|
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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|
2340 } |
|
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
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diff
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|
2341 |
|
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
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diff
changeset
|
2342 |
|
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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diff
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|
2343 ////////////////////////////////////////////////////////////////////////////// |
|
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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diff
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|
2344 // deco_gas_volumes |
|
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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218
diff
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|
2345 // |
|
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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218
diff
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|
2346 // new in v.111 |
|
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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218
diff
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|
2347 // |
|
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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218
diff
changeset
|
2348 // calculates volumes for each gas. |
|
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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218
diff
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|
2349 // |
|
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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218
diff
changeset
|
2350 // Input: char_I_bottom_depth, char_I_bottom_time for planned dive. |
|
240
d995e220ddac
BUGFIX Gas Usage when first gas is not #1 (bug BB22).
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237
diff
changeset
|
2351 // Gas list. |
|
d995e220ddac
BUGFIX Gas Usage when first gas is not #1 (bug BB22).
JeanDo
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237
diff
changeset
|
2352 // char_I_first_gas is the bottom gas. |
|
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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218
diff
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|
2353 // decoplan (char_O_deco_depth, char_O_deco_time). |
|
234
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
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diff
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|
2354 // CF#54 == TRUE if shallowest stop first. |
|
478
fd8266b511cc
New SAC (CF56/CF57) in 5..50 l/min range (no more decimal).
JeanDo
parents:
471
diff
changeset
|
2355 // CF#56 == bottom liters/minutes (5 .. 50) or bar/min. |
|
fd8266b511cc
New SAC (CF56/CF57) in 5..50 l/min range (no more decimal).
JeanDo
parents:
471
diff
changeset
|
2356 // CF#57 == deco liters/minutes (5 .. 50) or bar/min. |
| 224 | 2357 // Output: int_O_gas_volumes[0..4] in litters * 0.1 |
|
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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diff
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|
2358 // |
|
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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218
diff
changeset
|
2359 void deco_gas_volumes(void) |
|
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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218
diff
changeset
|
2360 { |
| 338 | 2361 overlay float volumes[NUM_GAS]; |
|
478
fd8266b511cc
New SAC (CF56/CF57) in 5..50 l/min range (no more decimal).
JeanDo
parents:
471
diff
changeset
|
2362 overlay float bottom_usage, deco_usage; |
|
234
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
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233
diff
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|
2363 overlay unsigned char i, deepest_first; |
| 646 | 2364 overlay unsigned char gas, depth; |
|
783
e57e8045527d
FIX: Gas volume computation when using several travel mix.
JeanDo
parents:
782
diff
changeset
|
2365 overlay unsigned char lastGasStop = 255; |
|
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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218
diff
changeset
|
2366 RESET_C_STACK |
|
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
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218
diff
changeset
|
2367 |
|
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2368 //---- initialize with bottom consumption -------------------------------- |
| 338 | 2369 for(i=0; i<NUM_GAS; ++i) // Nothing yet... |
|
240
d995e220ddac
BUGFIX Gas Usage when first gas is not #1 (bug BB22).
JeanDo
parents:
237
diff
changeset
|
2370 volumes[i] = 0.0; |
|
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2371 |
| 338 | 2372 assert(1 <= char_I_first_gas && char_I_first_gas <= NUM_GAS); |
| 241 | 2373 gas = char_I_first_gas - 1; |
| 2374 | |
|
478
fd8266b511cc
New SAC (CF56/CF57) in 5..50 l/min range (no more decimal).
JeanDo
parents:
471
diff
changeset
|
2375 bottom_usage = (float) read_custom_function(56); |
|
580
32448d5ca734
BUGFIX: GasVolume should not count bottom time/depth in CCR mode.
JeanDo
parents:
579
diff
changeset
|
2376 if( char_I_const_ppO2 == 0 && bottom_usage > 0.0 ) |
| 265 | 2377 volumes[gas] |
| 2378 = (char_I_bottom_depth*0.1 + 1.0) // Use Psurface = 1.0 bar. | |
| 2379 * char_I_bottom_time // in minutes. | |
| 2380 * bottom_usage; // In liter/minutes. | |
|
579
fff1d38625f0
BUGFIX: GasVolumes should check for a gas switch before the first stop.
JeanDo
parents:
568
diff
changeset
|
2381 |
|
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2382 //---- Ascent usage ------------------------------------------------------ |
|
234
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
JeanDo
parents:
233
diff
changeset
|
2383 deepest_first = read_custom_function(54) == 0; |
|
511
2a6293641d51
NEW NDL NDL faster/more precise simu (but no closed formula for trimix).
JeanDo
parents:
509
diff
changeset
|
2384 deco_usage = (float) read_custom_function(57); // In liter/minutes. |
|
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
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218
diff
changeset
|
2385 |
| 646 | 2386 depth = char_I_bottom_depth; |
|
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2387 |
| 338 | 2388 for(i=0; i<NUM_STOPS; ++i) |
|
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
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218
diff
changeset
|
2389 { |
|
658
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2390 overlay unsigned char newDepth, time; |
|
234
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
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233
diff
changeset
|
2391 |
|
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
JeanDo
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233
diff
changeset
|
2392 // Manage stops in reverse order (CF#54) |
|
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
JeanDo
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233
diff
changeset
|
2393 if( deepest_first ) |
|
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
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233
diff
changeset
|
2394 { |
| 241 | 2395 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
changeset
|
2396 if( time == 0 ) break; // End of table: done. |
|
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
JeanDo
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233
diff
changeset
|
2397 |
|
766
3b1af9891019
BUGFIX: CNS calculation in decoplan should track gas (no marked changes anymore)
JeanDo
parents:
757
diff
changeset
|
2398 newDepth = char_O_deco_depth[i]; |
|
234
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
JeanDo
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233
diff
changeset
|
2399 } |
|
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
JeanDo
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233
diff
changeset
|
2400 else |
|
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
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233
diff
changeset
|
2401 { |
|
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
JeanDo
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233
diff
changeset
|
2402 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
|
2403 if( time == 0 ) continue; // not yet: still search table. |
|
234
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
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233
diff
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|
2404 |
|
766
3b1af9891019
BUGFIX: CNS calculation in decoplan should track gas (no marked changes anymore)
JeanDo
parents:
757
diff
changeset
|
2405 newDepth = char_O_deco_depth[31-i]; |
|
234
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
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233
diff
changeset
|
2406 } |
|
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
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diff
changeset
|
2407 |
|
783
e57e8045527d
FIX: Gas volume computation when using several travel mix.
JeanDo
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782
diff
changeset
|
2408 //---- Gas switch during or before this stop -------------------------- |
|
e57e8045527d
FIX: Gas volume computation when using several travel mix.
JeanDo
parents:
782
diff
changeset
|
2409 for(;;) |
|
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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218
diff
changeset
|
2410 { |
|
658
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2411 overlay unsigned char newGas = 0; |
|
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2412 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
|
2413 overlay unsigned char j; |
|
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2414 |
|
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2415 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
|
2416 { |
|
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2417 // Skip gas without changing depth: |
|
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2418 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
|
2419 continue; |
|
783
e57e8045527d
FIX: Gas volume computation when using several travel mix.
JeanDo
parents:
782
diff
changeset
|
2420 // Select gas changed between [newDepth .. lastGasStop[ |
|
e57e8045527d
FIX: Gas volume computation when using several travel mix.
JeanDo
parents:
782
diff
changeset
|
2421 // Note that <= means changing gas at BEGINNING of this stop. |
|
e57e8045527d
FIX: Gas volume computation when using several travel mix.
JeanDo
parents:
782
diff
changeset
|
2422 // Note that < means we cant use the same gas twice |
|
658
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2423 if( newDepth <= char_I_deco_gas_change[j] |
|
783
e57e8045527d
FIX: Gas volume computation when using several travel mix.
JeanDo
parents:
782
diff
changeset
|
2424 && char_I_deco_gas_change[j] < lastGasStop ) |
| 646 | 2425 { |
|
658
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2426 // Keep the DEEPEST gas in that range: |
|
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2427 if( char_I_deco_gas_change[j] >= newStop ) |
|
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2428 { |
|
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2429 newGas = j; |
|
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2430 newStop = char_I_deco_gas_change[j]; |
|
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2431 } |
| 646 | 2432 } |
|
658
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2433 } |
|
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
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218
diff
changeset
|
2434 |
|
783
e57e8045527d
FIX: Gas volume computation when using several travel mix.
JeanDo
parents:
782
diff
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|
2435 // Did we find something ? |
|
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FIX: Gas volume computation when using several travel mix.
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782
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|
2436 if( !newStop ) |
|
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FIX: Gas volume computation when using several travel mix.
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|
2437 break; |
| 646 | 2438 |
|
783
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|
2439 //---- usage BEFORE gas switch (if any), at 10m/min : |
|
e57e8045527d
FIX: Gas volume computation when using several travel mix.
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|
2440 if( deco_usage > 0.0 && depth > newStop ) |
|
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FIX: Gas volume computation when using several travel mix.
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|
2441 // Plus usage during ascent to the next stop, at 10m/min. |
|
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|
2442 volumes[gas] += ((depth+newStop)*0.05 + 1.0) // average depth --> bar. |
|
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|
2443 * (depth-newStop)*0.1 // metre --> min |
|
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|
2444 * deco_usage; |
|
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|
2445 |
|
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|
2446 //---- Do gas switch: |
|
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|
2447 gas = newGas; |
|
e57e8045527d
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|
2448 |
|
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|
2449 lastGasStop = newStop; // Mark last used gas |
|
e57e8045527d
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|
2450 if( newStop < depth ) // ascent to gas switch, |
|
658
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
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diff
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|
2451 depth = newStop; |
|
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
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diff
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|
2452 } |
| 646 | 2453 |
|
783
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|
2454 //---- usage AFTER gas switch (if any), at 10m/min : |
| 646 | 2455 if( depth > newDepth ) |
| 2456 volumes[gas] += ((depth+newDepth)*0.05 + 1.0) // average depth --> bar. | |
| 2457 * (depth-newDepth)*0.1 // metre --> min | |
| 2458 * deco_usage; | |
| 2459 | |
|
783
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|
2460 //---- Do stop: |
| 646 | 2461 depth = newDepth; |
| 2462 | |
| 2463 // Usage at stop: | |
|
478
fd8266b511cc
New SAC (CF56/CF57) in 5..50 l/min range (no more decimal).
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|
2464 if( deco_usage > 0.0 ) |
| 265 | 2465 volumes[gas] += (depth*0.1 + 1.0) // depth --> bar. |
| 2466 * time // in minutes. | |
| 646 | 2467 * deco_usage; // in xxx / min @ 1bar. |
| 265 | 2468 else |
| 2469 volumes[gas] = 65535.0; | |
|
222
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|
2470 } |
|
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|
2471 |
| 646 | 2472 // From last stop to surface |
| 2473 if( deco_usage > 0.0 ) | |
| 2474 volumes[gas] += (depth*0.05 + 1.0) // avg depth --> bar. | |
| 2475 * depth * 0.1 // time to surface, in minutes. | |
| 2476 * deco_usage; // in xxx / min @ 1bar. | |
| 2477 | |
|
222
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|
2478 //---- convert results for the ASM interface ----------------------------- |
| 338 | 2479 for(i=0; i<NUM_GAS; ++i) |
|
441
4826dd98514b
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diff
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|
2480 if( volumes[i] > 65534.0 ) |
| 224 | 2481 int_O_gas_volumes[i] = 65535; |
|
222
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|
2482 else |
|
441
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|
2483 int_O_gas_volumes[i] = (unsigned short)(volumes[i] + 0.5); |
| 116 | 2484 } |
| 2485 | |
| 167 | 2486 ////////////////////////////////////////////////////////////////////////////// |
| 2487 | |
| 116 | 2488 void deco_push_tissues_to_vault(void) |
| 2489 { | |
| 167 | 2490 overlay unsigned char x; |
|
122
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diff
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|
2491 RESET_C_STACK |
| 167 | 2492 |
|
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diff
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|
2493 cns_vault = CNS_fraction; |
| 697 | 2494 low_depth_vault = low_depth; |
| 2495 | |
|
711
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|
2496 for (x=0;x<NUM_COMP;x++) |
| 339 | 2497 { |
|
711
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|
2498 pres_tissue_N2_vault[x] = pres_tissue_N2[x]; |
|
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diff
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|
2499 pres_tissue_He_vault[x] = pres_tissue_He[x]; |
| 339 | 2500 } |
| 116 | 2501 } |
| 167 | 2502 |
| 116 | 2503 void deco_pull_tissues_from_vault(void) |
| 2504 { | |
| 167 | 2505 overlay unsigned char x; |
|
122
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|
2506 RESET_C_STACK |
| 167 | 2507 |
|
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diff
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|
2508 for (x=0; x<NUM_COMP; x++) |
| 339 | 2509 { |
|
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|
2510 pres_tissue_N2[x] = pres_tissue_N2_vault[x]; |
|
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|
2511 pres_tissue_He[x] = pres_tissue_He_vault[x]; |
| 339 | 2512 } |
|
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diff
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|
2513 |
| 292 | 2514 // Restore both CNS variable, too. |
| 2515 CNS_fraction = cns_vault; | |
| 514 | 2516 char_O_CNS_fraction = (unsigned char)(CNS_fraction * 100.0 + 0.5); |
| 697 | 2517 |
| 2518 // GF history too: | |
| 2519 low_depth = low_depth_vault; | |
| 2520 locked_GF_step = GF_delta / low_depth; | |
| 116 | 2521 } |
| 2522 | |
| 167 | 2523 ////////////////////////////////////////////////////////////////////////////// |
| 2524 // | |
| 184 | 2525 #ifndef CROSS_COMPILE |
| 2526 void main() {} | |
| 2527 #endif |