Mercurial > public > mk2
annotate code_part1/OSTC_code_c_part2/p2_deco.c @ 741:c498d6972087
minor cleanup
author | heinrichsweikamp |
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date | Sun, 04 Aug 2013 18:14:05 +0200 |
parents | f555590f1419 |
children | 7e7e98247a8a |
rev | line source |
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116 | 1 // ************************************************************** |
2 // p2_deco.c | |
3 // | |
4 // Created on: 12.05.2009 | |
5 // Author: chsw | |
6 // | |
7 // ************************************************************** | |
8 | |
9 ////////////////////////////////////////////////////////////////////////////// | |
10 // OSTC - diving computer code | |
532 | 11 // Copyright (C) 2011 HeinrichsWeikamp GbR |
116 | 12 // |
13 // This program is free software: you can redistribute it and/or modify | |
14 // it under the terms of the GNU General Public License as published by | |
15 // the Free Software Foundation, either version 3 of the License, or | |
16 // (at your option) any later version. | |
17 // | |
18 // This program is distributed in the hope that it will be useful, | |
19 // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 // GNU General Public License for more details. | |
22 // | |
23 // You should have received a copy of the GNU General Public License | |
24 // along with this program. If not, see <http://www.gnu.org/licenses/>. | |
25 // | |
26 ////////////////////////////////////////////////////////////////////////////// | |
27 | |
28 // ***************************** | |
29 // ** I N T R O D U C T I O N ** | |
30 // ***************************** | |
31 // | |
32 // OSTC | |
33 // | |
34 // code: | |
35 // p2_deco_main_c_v101.c | |
36 // part2 of the OSTC code | |
37 // code with constant O2 partial pressure routines | |
38 // under construction !! | |
39 // | |
40 // summary: | |
41 // decompression routines | |
42 // for the OSTC experimental project | |
43 // written by Christian Weikamp | |
44 // last revision __________ | |
45 // comments added _________ | |
46 // | |
47 // additional files: | |
48 // p2_tables_v100.romdata (other files) | |
49 // 18f4685_ostc_v100.lkr (linker script) | |
50 // | |
51 // history: | |
52 // 01/03/08 v100: first release candidate | |
53 // 03/13/08 v101: start of programming ppO2 code | |
54 // 03/13/25 v101a: backup of interrim version with ppO2 calculation | |
55 // 03/13/25 v101: open circuit gas change during deco | |
56 // 03/13/25 v101: CNS_fraction calculation | |
57 // 03/13/26 v101: optimization of tissue calc routines | |
58 // 07/xx/08 v102a: debug of bottom time routine | |
59 // 09/xx/08 v102d: Gradient Factor Model implemenation | |
60 // 10/10/08 v104: renamed to build v103 for v118 stable | |
171 | 61 // 10/14/08 v104: integration of char_I_depth_last_deco for Gradient Model |
116 | 62 // 03/31/09 v107: integration of FONT Incon24 |
63 // 05/23/10 v109: 5 gas changes & 1 min timer | |
64 // 07/13/10 v110: cns vault added | |
65 // 12/25/10 v110: split in three files (deco.c, main.c, definitions.h) | |
163 | 66 // 2011/01/20: [jDG] Create a common file included in ASM and C code. |
167 | 67 // 2011/01/23: [jDG] Added read_custom_function(). |
203 | 68 // 2011/01/24: [jDG] Make ascenttime an short. No more overflow! |
169
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69 // 2011/01/25: [jDG] Fusion deco array for both models. |
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70 // 2011/01/25: [jDG] Use CF(54) to reverse deco order. |
193 | 71 // 2011/02/11: [jDG] Reworked gradient-factor implementation. |
197 | 72 // 2011/02/13: [jDG] CF55 for additional gas switch delay in decoplan. |
275
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73 // 2011/02/15: [jDG] Fixed inconsistencies introduced by gas switch delays. |
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74 // 2011/03/21: [jDG] Added gas consumption (CF56 & CF57) evaluation for OCR mode. |
293
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75 // 2011/04/10: [jDG] Use timer TMR3 to limit loops in calc_hauptroutine_calc_deco(). |
275
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76 // 2011/04/15: [jDG] Store low_depth in 32bits (w/o rounding), for a better stability. |
293
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77 // 2011/04/25: [jDG] Added 1mn mode for CNS calculation, to allow it for decoplanning. |
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78 // 2011/04/27: [jDG] Fixed char_O_gradient_factor calculation when model uses gradient-factor. |
334
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79 // 2011/05/02: [jDG] Added "Future TTS" function (CF58). |
338 | 80 // 2011/05/17: [jDG] Various cleanups. |
511
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81 // 2011/08/08: [jDG] Computes CNS during deco planning ascent. |
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82 // 2011/11/24: [jDG] Slightly faster and better NDL computation. |
562 | 83 // 2011/12/17: [mH] Remove of the useless debug stuff |
561 | 84 // 2012/02/24: [jDG] Remove missed stop bug. |
562 | 85 // 2012/02/25: [jDG] Looking for a more stable LOW grad factor reference. |
646 | 86 // 2012/09/10: [mH] Fill char_O_deco_time_for_log for logbook write |
87 // 2012/10/05: [jDG] Better deco_gas_volumes accuracy (average depth, switch between stop). | |
697 | 88 // 2013/03/05: [jDG] Should vault low_depth too. |
698 | 89 // 2013/03/05: [jDG] Wrobell remark: ascent_to_first_stop works better with finer steps (2sec). |
711
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90 // 2013/05/08: [jDG] A. Salm remark: NOAA tables for CNS are in ATA, not bar. |
116 | 91 // |
167 | 92 // TODO: |
93 // + Allow to abort MD2 calculation (have to restart next time). | |
94 // | |
95 // Literature: | |
200 | 96 // Bühlmann, Albert: Tauchmedizin; 4. Auflage [2002]; |
116 | 97 // 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 |
98 // Morrison, Stuart; 2000; DIY DECOMPRESSION; http://www.lizardland.co.uk/DIYDeco.html | |
99 // Balthasar, Steffen; Dekompressionstheorie I: Neo Haldane Modelle; http://www.txfreak.de/dekompressionstheorie_1.pdf | |
100 // Baker, Erik C.; Clearing Up The Confusion About "Deep Stops" | |
101 // Baker, Erik C.; Understanding M-values; http://www.txfreak.de/understanding_m-values.pdf | |
167 | 102 // |
103 // | |
116 | 104 |
105 // ********************* | |
106 // ** I N C L U D E S ** | |
107 // ********************* | |
108 #include <math.h> | |
167 | 109 |
192 | 110 // *********************************************** |
111 // ** V A R I A B L E S D E F I N I T I O N S ** | |
112 // *********************************************** | |
113 | |
114 #include "p2_definitions.h" | |
275
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115 #define TEST_MAIN |
509 | 116 #include "../OSTC_code_asm_part1/shared_definitions.h" |
192 | 117 |
200 | 118 // Water vapour partial pressure in the lumb. |
527 | 119 #define ppWater 0.0627 |
317 | 120 #define METER_TO_BAR 0.09985 |
121 #define BAR_TO_METER 10.0150 // (1.0/METER_TO_BAR) | |
200 | 122 |
491
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123 // Surface security factor |
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124 #define SURFACE_DESAT_FACTOR 0.7042 |
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125 |
167 | 126 // ************************* |
127 // ** P R O T O T Y P E S ** | |
128 // ************************* | |
129 | |
130 static void calc_hauptroutine(void); | |
131 static void calc_nullzeit(void); | |
132 | |
192 | 133 static void calc_tissue(PARAMETER unsigned char period); |
258 | 134 static void calc_limit(void); |
192 | 135 |
167 | 136 static void clear_tissue(void); |
137 static void calc_ascenttime(void); | |
138 static void update_startvalues(void); | |
169
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139 static void clear_deco_table(void); |
471 | 140 static unsigned char update_deco_table(void); |
192 | 141 |
142 static void sim_tissue(PARAMETER unsigned char period); | |
143 static void sim_limit(PARAMETER float GF_current); | |
312
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144 static void sim_extra_time(void); |
368 | 145 static void calc_dive_interval(void); |
312
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146 |
167 | 147 static void calc_gradient_factor(void); |
148 static void calc_wo_deco_step_1_min(void); | |
149 | |
150 static void calc_hauptroutine_data_input(void); | |
151 static void calc_hauptroutine_update_tissues(void); | |
152 static void calc_hauptroutine_calc_deco(void); | |
169
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153 static void sim_ascent_to_first_stop(void); |
167 | 154 |
241 | 155 static unsigned char gas_switch_deepest(void); |
156 static void gas_switch_set(void); | |
217 | 157 |
241 | 158 static unsigned char calc_nextdecodepth(void); |
116 | 159 |
200 | 160 //---- Bank 4 parameters ----------------------------------------------------- |
601
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161 #ifndef UNIX |
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162 # pragma udata bank4=0x400 |
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163 #endif |
116 | 164 |
165 static float GF_low; | |
166 static float GF_high; | |
167 static float GF_delta; | |
192 | 168 static float locked_GF_step; // GF_delta / low_depth |
169 | |
170 static unsigned char temp_depth_limit; | |
695 | 171 float low_depth; // Depth of deepest stop |
171 | 172 |
192 | 173 // Simulation context: used to predict ascent. |
695 | 174 unsigned char sim_lead_tissue_no; // Leading compatiment number. |
175 float sim_lead_tissue_limit; // Buhlmann tolerated pressure. | |
116 | 176 |
192 | 177 // Real context: what we are doing now. |
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178 static float calc_lead_tissue_limit; // |
116 | 179 |
338 | 180 static unsigned char internal_deco_time[NUM_STOPS]; |
181 static unsigned char internal_deco_depth[NUM_STOPS]; | |
116 | 182 |
183 static float cns_vault; | |
697 | 184 static float low_depth_vault; |
339 | 185 static float pres_tissue_N2_vault[NUM_COMP]; |
186 static float pres_tissue_He_vault[NUM_COMP]; | |
116 | 187 |
163 | 188 //---- Bank 5 parameters ----------------------------------------------------- |
601
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189 #ifndef UNIX |
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190 # pragma udata bank5=0x500 |
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191 #endif |
163 | 192 |
167 | 193 static unsigned char ci; |
116 | 194 static float pres_respiration; |
195 static float pres_surface; | |
196 static float temp_deco; | |
236 | 197 static float ppN2; |
200 | 198 static float ppHe; |
116 | 199 static float temp_tissue; |
200 | 200 static float N2_ratio; // Breathed gas nitrogen ratio. |
201 static float He_ratio; // Breathed gas helium ratio. | |
202 static float var_N2_a; // Bühlmann a, for current N2 tissue. | |
203 static float var_N2_b; // Bühlmann b, for current N2 tissue. | |
204 static float var_He_a; // Bühlmann a, for current He tissue. | |
205 static float var_He_b; // Bühlmann b, for current He tissue. | |
206 static float var_N2_e; // Exposition, for current N2 tissue. | |
207 static float var_He_e; // Exposition, for current He tissue. | |
509 | 208 static float var_N2_ht; // Half-time for current N2 tissue. |
209 static float var_He_ht; // Half-time for current N2 tissue. | |
116 | 210 |
338 | 211 static float pres_diluent; // new in v.101 |
212 static float const_ppO2; // new in v.101 | |
116 | 213 |
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214 static unsigned char sim_gas_last_depth; // Depth of last used gas, to detected a gas switch. |
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215 static unsigned char sim_gas_last_used; // Number of last used gas, to detected a gas switch. |
203 | 216 static unsigned short sim_gas_delay; // Time of gas-switch-stop ends [min on dive]. |
217 static unsigned short sim_dive_mins; // Simulated dive time. | |
200 | 218 static float calc_N2_ratio; // Simulated (switched) nitrogen ratio. |
219 static float calc_He_ratio; // Simulated (switched) helium ratio. | |
220 static float CNS_fraction; // new in v.101 | |
221 static float float_saturation_multiplier; // new in v.101 | |
222 static float float_desaturation_multiplier; // new in v.101 | |
338 | 223 static float float_deco_distance; // new in v.101 |
167 | 224 |
338 | 225 static unsigned char deco_gas_change[NUM_GAS]; // new in v.109 |
167 | 226 |
163 | 227 //---- Bank 6 parameters ----------------------------------------------------- |
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228 #ifndef UNIX |
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229 # pragma udata bank6=0x600 |
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230 #endif |
116 | 231 |
339 | 232 float pres_tissue_N2[NUM_COMP]; |
233 float pres_tissue_He[NUM_COMP]; | |
509 | 234 float sim_pres_tissue_N2[NUM_COMP]; // 16 floats = 64 bytes. |
235 float sim_pres_tissue_He[NUM_COMP]; // 16 floats = 64 bytes. | |
116 | 236 |
163 | 237 //---- Bank 7 parameters ----------------------------------------------------- |
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238 #ifndef UNIX |
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239 # pragma udata bank7=0x700 |
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240 #endif |
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241 |
509 | 242 // EMPTY ... |
116 | 243 |
163 | 244 //---- Bank 8 parameters ----------------------------------------------------- |
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245 #ifndef UNIX |
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246 # pragma udata bank8=0x800 |
163 | 247 |
601
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248 static char md_pi_subst[256]; |
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249 # define C_STACK md_pi_subst // Overlay C-code data stack here, too. |
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250 |
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251 #endif |
116 | 252 |
163 | 253 //---- Bank 9 parameters ----------------------------------------------------- |
601
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254 #ifndef UNIX |
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255 # pragma udata bank9=0x900 |
116 | 256 |
601
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257 static char md_state[48]; // DONT MOVE : has to be at the beginning of bank 9 for the asm code!!! |
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258 #endif |
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259 |
116 | 260 |
167 | 261 ////////////////////////////////////////////////////////////////////////////// |
262 ////////////////////////////////////////////////////////////////////////////// | |
263 ///////////////////////////// THE LOOKUP TABLES ////////////////////////////// | |
264 ////////////////////////////////////////////////////////////////////////////// | |
265 ////////////////////////////////////////////////////////////////////////////// | |
266 // | |
267 // End of PROM code is 17F00, So push tables on PROM top... | |
268 // | |
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269 #ifndef UNIX |
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270 # pragma romdata buhlmann_tables = 0x017B00 // Needs to be in UPPER bank. |
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271 #endif |
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272 |
167 | 273 #include "p2_tables.romdata" // new table for deco_main_v.101 (var_N2_a modified) |
116 | 274 |
167 | 275 // Magic table to compute the MD2 HASH |
276 // | |
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277 #ifndef UNIX |
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278 # pragma romdata hash_tables = 0x017E00 // Address fixed by ASM access... |
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279 rom const rom unsigned short md_pi[] = |
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280 { |
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281 0x292E, 0x43C9, 0xA2D8, 0x7C01, 0x3D36, 0x54A1, 0xECF0, 0x0613 |
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282 , 0x62A7, 0x05F3, 0xC0C7, 0x738C, 0x9893, 0x2BD9, 0xBC4C, 0x82CA |
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283 , 0x1E9B, 0x573C, 0xFDD4, 0xE016, 0x6742, 0x6F18, 0x8A17, 0xE512 |
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284 , 0xBE4E, 0xC4D6, 0xDA9E, 0xDE49, 0xA0FB, 0xF58E, 0xBB2F, 0xEE7A |
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285 , 0xA968, 0x7991, 0x15B2, 0x073F, 0x94C2, 0x1089, 0x0B22, 0x5F21 |
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286 , 0x807F, 0x5D9A, 0x5A90, 0x3227, 0x353E, 0xCCE7, 0xBFF7, 0x9703 |
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287 , 0xFF19, 0x30B3, 0x48A5, 0xB5D1, 0xD75E, 0x922A, 0xAC56, 0xAAC6 |
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288 , 0x4FB8, 0x38D2, 0x96A4, 0x7DB6, 0x76FC, 0x6BE2, 0x9C74, 0x04F1 |
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289 , 0x459D, 0x7059, 0x6471, 0x8720, 0x865B, 0xCF65, 0xE62D, 0xA802 |
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290 , 0x1B60, 0x25AD, 0xAEB0, 0xB9F6, 0x1C46, 0x6169, 0x3440, 0x7E0F |
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291 , 0x5547, 0xA323, 0xDD51, 0xAF3A, 0xC35C, 0xF9CE, 0xBAC5, 0xEA26 |
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292 , 0x2C53, 0x0D6E, 0x8528, 0x8409, 0xD3DF, 0xCDF4, 0x4181, 0x4D52 |
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293 , 0x6ADC, 0x37C8, 0x6CC1, 0xABFA, 0x24E1, 0x7B08, 0x0CBD, 0xB14A |
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294 , 0x7888, 0x958B, 0xE363, 0xE86D, 0xE9CB, 0xD5FE, 0x3B00, 0x1D39 |
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295 , 0xF2EF, 0xB70E, 0x6658, 0xD0E4, 0xA677, 0x72F8, 0xEB75, 0x4B0A |
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296 , 0x3144, 0x50B4, 0x8FED, 0x1F1A, 0xDB99, 0x8D33, 0x9F11, 0x8314 |
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297 }; |
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298 #endif |
116 | 299 |
167 | 300 ////////////////////////////////////////////////////////////////////////////// |
301 ////////////////////////////////////////////////////////////////////////////// | |
302 ////////////////////////////// THE SUBROUTINES /////////////////////////////// | |
303 ////////////////////////////////////////////////////////////////////////////// | |
304 ////////////////////////////////////////////////////////////////////////////// | |
305 // | |
116 | 306 // all new in v.102 |
307 // moved from 0x0D000 to 0x0C000 in v.108 | |
601
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308 #ifndef UNIX |
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309 # pragma code p2_deco = 0x0C000 |
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310 #endif |
116 | 311 |
167 | 312 ////////////////////////////////////////////////////////////////////////////// |
313 ////////////////////////////////////////////////////////////////////////////// | |
314 /////////////////////// U T I L I T I E S ///////////////////////////////// | |
315 ////////////////////////////////////////////////////////////////////////////// | |
316 ////////////////////////////////////////////////////////////////////////////// | |
317 | |
235 | 318 ////////////////////////////////////////////////////////////////////////////// |
257
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319 // Bump to blue-screen when an assert is wrong |
235 | 320 #ifdef __DEBUG |
321 void assert_failed(PARAMETER short int line) | |
322 { | |
681 | 323 extern void DISP_resetdebugger(void); |
235 | 324 extern unsigned short temp10; |
325 | |
257
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326 temp10 = line; // Show source line number as stack depth. |
681 | 327 DISP_resetdebugger(); |
235 | 328 } |
329 #endif | |
257
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330 |
235 | 331 ////////////////////////////////////////////////////////////////////////////// |
332 // When calling C code from ASM context, the data stack pointer and | |
333 // frames should be reset. Bank8 is used by stack, when not doing hashing. | |
334 | |
335 #ifdef CROSS_COMPILE | |
336 # define RESET_C_STACK | |
337 #else | |
338 # ifdef __DEBUG | |
339 # define RESET_C_STACK fillDataStack(); | |
340 void fillDataStack(void) | |
341 { | |
342 _asm | |
343 LFSR 1,C_STACK | |
344 MOVLW 0xCC | |
345 loop: MOVWF POSTINC1,0 | |
346 TSTFSZ FSR1L,0 | |
347 BRA loop | |
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348 |
235 | 349 LFSR 1,C_STACK |
350 LFSR 2,C_STACK | |
351 _endasm | |
352 } | |
353 # else | |
354 # define RESET_C_STACK \ | |
355 _asm \ | |
356 LFSR 1, C_STACK \ | |
357 LFSR 2, C_STACK \ | |
358 _endasm | |
359 # endif | |
360 #endif | |
361 | |
362 ////////////////////////////////////////////////////////////////////////////// | |
257
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363 // Read CF values from the C code. |
235 | 364 |
488 | 365 #ifdef CROSS_COMPILE |
366 // Full description of the OSTC EEPROM map, including CF values. | |
367 # include "OSTC_eeprom.h" | |
368 #endif | |
369 | |
203 | 370 static short read_custom_function(PARAMETER unsigned char cf) |
167 | 371 { |
184 | 372 #ifdef CROSS_COMPILE |
564 | 373 return (cf & 32) ? eeprom.bank1_CF[cf-32].value.lo |
374 : eeprom.bank0_CF[cf ].value.lo; | |
184 | 375 #else |
167 | 376 extern unsigned char hi, lo; |
377 extern void getcustom15(); | |
378 _asm | |
379 movff cf,WREG | |
380 call getcustom15,0 | |
381 movff lo,PRODL | |
382 movff hi,PRODH | |
383 _endasm | |
184 | 384 #endif |
167 | 385 } |
386 | |
387 ////////////////////////////////////////////////////////////////////////////// | |
257
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388 // Fast subroutine to read RTC timer 3. |
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389 // Note: result is in 1/32 of msecs. |
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390 static unsigned short tmr3(void) |
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391 { |
261 | 392 #ifndef CROSS_COMPILE |
257
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393 _asm |
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394 movff 0xfb2,PRODL // TMR3L |
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395 movff 0xfb3,PRODH // TMR3H |
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396 _endasm // result in PRODH:PRODL. |
261 | 397 #else |
398 return 0; | |
399 #endif | |
257
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400 } |
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401 |
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402 ////////////////////////////////////////////////////////////////////////////// |
258 | 403 // read buhlmann tables A and B for compatriment ci |
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404 // |
258 | 405 static void read_buhlmann_coefficients(void) |
165 | 406 { |
184 | 407 #ifndef CROSS_COMPILE |
167 | 408 // Note: we don't use far rom pointer, because the |
338 | 409 // 24 bits is too complex, hence we have to set |
167 | 410 // the UPPER page ourself... |
411 // --> Set zero if tables are moved to lower pages ! | |
412 _asm | |
413 movlw 1 | |
414 movwf TBLPTRU,0 | |
415 _endasm | |
184 | 416 #endif |
258 | 417 |
564 | 418 assert( ci < NUM_COMP ); |
338 | 419 |
420 // Use an interleaved array (AoS) to access coefficients with a | |
421 // single addressing. | |
422 { | |
423 overlay rom const float* ptr = &buhlmann_ab[4*ci]; | |
424 var_N2_a = *ptr++; | |
425 var_N2_b = *ptr++; | |
426 var_He_a = *ptr++; | |
427 var_He_b = *ptr++; | |
428 } | |
258 | 429 } |
430 | |
431 ////////////////////////////////////////////////////////////////////////////// | |
432 // read buhlmann tables for compatriment ci | |
433 // If period == 0 : 2sec interval | |
434 // 1 : 1 min interval | |
435 // 2 : 10 min interval. | |
436 static void read_buhlmann_times(PARAMETER char period) | |
437 { | |
438 #ifndef CROSS_COMPILE | |
439 // Note: we don't use far rom pointer, because the | |
440 // 24 bits is to complex, hence we have to set | |
441 // the UPPER page ourself... | |
442 // --> Set zero if tables are moved to lower pages ! | |
443 _asm | |
444 movlw 1 | |
445 movwf TBLPTRU,0 | |
446 _endasm | |
447 #endif | |
338 | 448 |
564 | 449 assert( ci < NUM_COMP ); |
258 | 450 |
165 | 451 // Integration intervals. |
167 | 452 switch(period) |
165 | 453 { |
454 case 0: //---- 2 sec ----------------------------------------------------- | |
338 | 455 { |
456 overlay rom const float* ptr = &e2secs[2*ci]; | |
457 var_N2_e = *ptr++; | |
458 var_He_e = *ptr++; | |
459 } | |
165 | 460 break; |
461 | |
462 case 1: //---- 1 min ----------------------------------------------------- | |
338 | 463 { |
464 overlay rom const float* ptr = &e1min[2*ci]; | |
465 var_N2_e = *ptr++; | |
466 var_He_e = *ptr++; | |
467 } | |
165 | 468 break; |
469 | |
470 case 2: //---- 10 min ---------------------------------------------------- | |
338 | 471 { |
472 overlay rom const float* ptr = &e10min[2*ci]; | |
473 var_N2_e = *ptr++; | |
474 var_He_e = *ptr++; | |
475 } | |
165 | 476 break; |
197 | 477 |
478 default: | |
527 | 479 assert(0); // Never go there... |
165 | 480 } |
481 } | |
482 | |
483 ////////////////////////////////////////////////////////////////////////////// | |
509 | 484 // read buhlmann tables for compatriment ci |
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485 // |
509 | 486 static void read_buhlmann_ht(void) |
487 { | |
488 | |
489 #ifndef CROSS_COMPILE | |
490 // Note: we don't use far rom pointer, because the | |
491 // 24 bits is to complex, hence we have to set | |
492 // the UPPER page ourself... | |
493 // --> Set zero if tables are moved to lower pages ! | |
494 _asm | |
495 movlw 1 | |
496 movwf TBLPTRU,0 | |
497 _endasm | |
498 #endif | |
499 | |
564 | 500 assert( ci < NUM_COMP ); |
509 | 501 { |
502 overlay rom const float* ptr = &buhlmann_ht[2*ci]; | |
503 var_N2_ht = *ptr++; | |
504 var_He_ht = *ptr++; | |
711
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505 } |
509 | 506 |
507 assert( 4.0 <= var_N2_ht && var_N2_ht <= 635.0 ); | |
508 assert( 1.5099 <= var_He_ht && var_He_ht <= 240.03 ); | |
509 } | |
510 | |
511 ////////////////////////////////////////////////////////////////////////////// | |
340
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512 // calc_nextdecodepth |
165 | 513 // |
116 | 514 // new in v.102 |
165 | 515 // |
116 | 516 // INPUT, changing during dive: |
509 | 517 // temp_deco |
192 | 518 // low_depth |
167 | 519 // |
116 | 520 // INPUT, fixed during dive: |
167 | 521 // pres_surface |
522 // GF_delta | |
523 // GF_high | |
524 // GF_low | |
171 | 525 // char_I_depth_last_deco |
167 | 526 // float_deco_distance |
527 // | |
241 | 528 // RETURN TRUE iff a stop is needed. |
529 // | |
116 | 530 // OUTPUT |
171 | 531 // locked_GF_step |
167 | 532 // temp_depth_limt |
192 | 533 // low_depth |
167 | 534 // |
241 | 535 static unsigned char calc_nextdecodepth(void) |
167 | 536 { |
241 | 537 //--- Max ascent speed --------------------------------------------------- |
538 // Recompute leading gas limit, at current depth: | |
317 | 539 overlay float depth = (temp_deco - pres_surface) * BAR_TO_METER; |
241 | 540 |
541 // At most, ascent 1 minute, at 10m/min == 10.0 m. | |
302 | 542 overlay float min_depth = (depth > 10.0) ? (depth - 10.0) : 0.0; |
711
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543 |
241 | 544 // Do we need to stop at current depth ? |
545 overlay unsigned char need_stop = 0; | |
546 | |
547 assert( depth >= -0.2 ); // Allow for 200mbar of weather change. | |
548 | |
212 | 549 //---- ZH-L16 + GRADIENT FACTOR model ------------------------------------ |
711
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550 if( char_I_deco_model != 0 ) |
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551 { |
562 | 552 overlay unsigned char first_stop = 0; |
553 overlay float p; | |
554 | |
567 | 555 sim_limit( GF_low ); |
562 | 556 p = sim_lead_tissue_limit - pres_surface; |
695 | 557 p *= BAR_TO_METER; |
562 | 558 if( p <= 0.0f ) |
559 goto no_deco_stop; // We can surface directly... | |
512
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560 |
695 | 561 // Store the deepest point needing a deco stop as the LOW reference for GF. |
562 // NOTE: following stops will be validated using this LOW-HIGH gf scale, | |
563 // so if we want to keep coherency, we should not validate this stop | |
564 // yet, but apply the search to it, as for all the following stops afterward. | |
565 if( p > low_depth ) | |
566 { | |
567 low_depth = p; | |
568 locked_GF_step = GF_delta / low_depth; | |
569 } | |
570 | |
562 | 571 if( p < min_depth ) |
572 goto no_deco_stop; // First stop is higher than 1' ascent. | |
275
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573 |
695 | 574 // Round to multiple of 3m. |
575 first_stop = 3 * (short)(0.9995f + p*0.333333f); | |
562 | 576 assert( first_stop < 128 ); |
577 | |
578 // Apply correction for the shallowest stop. | |
579 if( first_stop == 3 ) // new in v104 | |
580 first_stop = char_I_depth_last_deco; // Use last 3m..6m instead. | |
171 | 581 |
562 | 582 // We have a stop candidate. |
583 // But maybe ascending to the next stop will diminish the constraint, | |
584 // because the GF might decrease more than the preassure gradient... | |
585 while(first_stop > 0) | |
586 { | |
587 overlay unsigned char next_stop; // Next depth (0..90m) | |
171 | 588 |
562 | 589 // Check max speed, or reaching surface. |
590 if( first_stop <= min_depth ) | |
591 goto no_deco_stop; | |
171 | 592 |
562 | 593 if( first_stop <= char_I_depth_last_deco ) // new in v104 |
594 next_stop = 0; | |
595 else if( first_stop == 6 ) | |
596 next_stop = char_I_depth_last_deco; | |
597 else | |
598 next_stop = first_stop - 3; // Index of next (upper) stop. | |
711
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599 |
562 | 600 // Total preassure at the new stop candidate: |
695 | 601 p = next_stop * METER_TO_BAR |
711
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602 + pres_surface; |
167 | 603 |
695 | 604 // Recompute limit for this new stop: |
605 if( !low_depth || next_stop > low_depth ) | |
606 sim_limit( GF_low ); | |
607 else | |
608 sim_limit( GF_high - next_stop * locked_GF_step ); | |
192 | 609 |
695 | 610 // Check upper limit (lowest ambiant pressure tolerated): |
611 if( sim_lead_tissue_limit >= p ) | |
612 goto deco_stop_found; // Ascent to next_stop forbiden. | |
562 | 613 |
614 // Else, validate that stop and loop... | |
615 first_stop = next_stop; | |
616 } | |
171 | 617 |
562 | 618 no_deco_stop: |
711
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619 temp_depth_limit = min_depth; |
562 | 620 goto done; |
212 | 621 |
695 | 622 deco_stop_found: |
562 | 623 // next stop is the last validated depth found, aka first_stop |
624 need_stop = 1; // Hit. | |
625 temp_depth_limit = first_stop; // Stop depth, in meter. | |
626 | |
627 done: | |
628 ; | |
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629 } |
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630 else //---- ZH-L16 model ------------------------------------------------- |
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631 { |
192 | 632 overlay float pres_gradient; |
633 | |
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634 // Original model |
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635 // optimized in v.101 |
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636 // char_I_depth_last_deco included in v.101 |
116 | 637 |
192 | 638 // Compute sim_lead_tissue_limit too, but just once. |
639 sim_limit(1.0); | |
640 | |
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641 pres_gradient = sim_lead_tissue_limit - pres_surface; |
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642 if (pres_gradient >= 0) |
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643 { |
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644 pres_gradient *= BAR_TO_METER/3; // Bar --> stop number; |
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645 temp_depth_limit = 3 * (short) (pres_gradient + 0.99); // --> metre : depth for deco |
241 | 646 need_stop = 1; // Hit. |
647 | |
648 // Implement last stop at 4m/5m/6m... | |
711
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649 if( temp_depth_limit == 3 ) |
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650 temp_depth_limit = char_I_depth_last_deco; |
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651 } |
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652 else |
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653 temp_depth_limit = 0; |
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654 } |
212 | 655 |
217 | 656 //---- Check gas change -------------------------------------------------- |
241 | 657 need_stop |= gas_switch_deepest(); // Update temp_depth_limit if there is a change, |
658 | |
659 return need_stop; | |
167 | 660 } |
116 | 661 |
167 | 662 ////////////////////////////////////////////////////////////////////////////// |
169
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663 // copy_deco_table |
167 | 664 // |
169
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665 // Buffer the stops, once computed, so we can continue to display them |
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666 // while computing the next set. |
167 | 667 // |
169
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668 static void copy_deco_table(void) |
116 | 669 { |
169
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670 // Copy depth of the first (deepest) stop, because when reversing |
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671 // order, it will be hard to find... |
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672 char_O_first_deco_depth = internal_deco_depth[0] & 0x7F; |
169
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673 char_O_first_deco_time = internal_deco_time [0]; |
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674 |
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675 if( read_custom_function(54) & 1 ) //---- Should we reverse table ? ------ |
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676 { |
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677 overlay unsigned char x, y; |
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678 |
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679 //---- First: search the first non-null depth |
339 | 680 for(x=(NUM_STOPS-1); x != 0; --x) |
169
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681 if( internal_deco_depth[x] != 0 ) break; |
116 | 682 |
169
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683 //---- Second: copy to output table (in reverse order) |
338 | 684 for(y=0; y<NUM_STOPS; y++, --x) |
169
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685 { |
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686 char_O_deco_depth[y] = internal_deco_depth[x]; |
633
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687 char_O_deco_time_for_log[y] = internal_deco_time [x]; |
169
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688 char_O_deco_time [y] = internal_deco_time [x]; |
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689 |
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690 // Stop only once the last transfer is done. |
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691 if( x == 0 ) break; |
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692 } |
116 | 693 |
169
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694 //---- Third: fill table end with null |
339 | 695 for(y++; y<NUM_STOPS; y++) |
169
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696 { |
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697 char_O_deco_time [y] = 0; |
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698 char_O_deco_depth[y] = 0; |
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699 char_O_deco_time_for_log[y] = 0; |
169
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700 } |
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701 } |
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702 else //---- Straight copy ------------------------------------------------ |
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703 { |
630
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704 overlay unsigned char x, y; |
167 | 705 |
339 | 706 for(x=0; x<NUM_STOPS; x++) |
169
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707 { |
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708 char_O_deco_depth[x] = internal_deco_depth[x]; |
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709 char_O_deco_time [x] = internal_deco_time [x]; |
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710 } |
630
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711 |
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712 //Now fill the char_O_deco_time_for_log array |
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713 //---- First: search the first non-null depth |
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714 for(x=(NUM_STOPS-1); x != 0; --x) |
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715 if( internal_deco_depth[x] != 0 ) break; |
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716 |
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717 //---- Second: copy to output table (in reverse order) |
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718 for(y=0; y<NUM_STOPS; y++, --x) |
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719 { |
633
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720 char_O_deco_time_for_log[y] = internal_deco_time [x]; |
630
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721 |
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722 // Stop only once the last transfer is done. |
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723 if( x == 0 ) break; |
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724 } |
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725 |
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726 //---- Third: fill table end with null |
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727 for(y++; y<NUM_STOPS; y++) |
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728 { |
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729 char_O_deco_time_for_log [y] = 0; |
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730 } |
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731 |
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732 } |
167 | 733 } |
116 | 734 |
167 | 735 ////////////////////////////////////////////////////////////////////////////// |
116 | 736 // temp_tissue_safety // |
167 | 737 // |
116 | 738 // outsourced in v.102 |
167 | 739 // |
740 // Apply safety factors for brand ZH-L16 model. | |
741 // | |
742 static void temp_tissue_safety(void) | |
116 | 743 { |
197 | 744 assert( 0.0 < float_desaturation_multiplier && float_desaturation_multiplier <= 1.0 ); |
745 assert( 1.0 <= float_saturation_multiplier && float_saturation_multiplier <= 2.0 ); | |
746 | |
711
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747 if( char_I_deco_model == 0 ) |
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748 { |
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749 if( temp_tissue < 0.0 ) |
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750 temp_tissue *= float_desaturation_multiplier; |
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751 else |
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752 temp_tissue *= float_saturation_multiplier; |
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753 } |
167 | 754 } |
116 | 755 |
167 | 756 ////////////////////////////////////////////////////////////////////////////// |
757 ////////////////////////////////////////////////////////////////////////////// | |
116 | 758 // ** THE JUMP-IN CODE ** |
759 // ** for the asm code ** | |
167 | 760 ////////////////////////////////////////////////////////////////////////////// |
761 ////////////////////////////////////////////////////////////////////////////// | |
122
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762 |
167 | 763 ////////////////////////////////////////////////////////////////////////////// |
169
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764 // Called every 2 seconds during diving. |
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765 // update tissues every time. |
184 | 766 // |
169
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767 // Every 6 seconds (or slower when TTS > 16): |
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768 // - update deco table (char_O_deco_time/depth) with new values. |
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769 // - update ascent time, |
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770 // - set status to zero (so we can check there is new results). |
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771 // |
116 | 772 void deco_calc_hauptroutine(void) |
773 { | |
122
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774 RESET_C_STACK |
116 | 775 calc_hauptroutine(); |
776 int_O_desaturation_time = 65535; | |
777 } | |
778 | |
167 | 779 ////////////////////////////////////////////////////////////////////////////// |
184 | 780 // Reset decompression model: |
781 // + Set all tissues to equilibrium with Air at ambient pressure. | |
782 // + Reset last stop to 0m | |
783 // + Reset all model output. | |
116 | 784 void deco_clear_tissue(void) |
785 { | |
122
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diff
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|
786 RESET_C_STACK |
116 | 787 clear_tissue(); |
788 } | |
789 | |
167 | 790 ////////////////////////////////////////////////////////////////////////////// |
278 | 791 // Called every 1 min during decoplanning. |
792 // Update tissues for 1 min. | |
793 // | |
794 void deco_calc_tissue(void) | |
795 { | |
796 RESET_C_STACK | |
797 calc_hauptroutine_update_tissues(); | |
711
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798 } |
278 | 799 |
800 ////////////////////////////////////////////////////////////////////////////// | |
167 | 801 |
116 | 802 void deco_calc_wo_deco_step_1_min(void) |
803 { | |
122
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804 RESET_C_STACK |
116 | 805 calc_wo_deco_step_1_min(); |
806 deco_calc_desaturation_time(); | |
807 } | |
808 | |
167 | 809 ////////////////////////////////////////////////////////////////////////////// |
810 | |
368 | 811 void deco_calc_dive_interval(void) |
812 { | |
813 RESET_C_STACK | |
814 calc_dive_interval(); | |
815 } | |
816 | |
241 | 817 ////////////////////////////////////////////////////////////////////////////// |
818 // Find current gas in the list (if any). | |
711
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819 // |
513 | 820 // Input: char_I_current_gas = 1..6 |
241 | 821 // |
513 | 822 // Output: sim_gas_last_depth = 0..5, temp_depth_limit. |
241 | 823 // |
824 static void gas_switch_find_current(void) | |
825 { | |
513 | 826 assert( 0 < char_I_current_gas && char_I_current_gas <= (NUM_GAS+1) ); |
247
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BUGFIX Count gas switch delay down during ascent (bug bb26)
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827 |
388 | 828 if( char_I_current_gas <= NUM_GAS ) // Gas1..Gas5 |
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829 { |
388 | 830 sim_gas_last_used = char_I_current_gas; |
831 | |
832 // Note: if current is first gas, we must find it, but not set | |
833 // last depth change to surface. | |
834 if( char_I_deco_gas_change[sim_gas_last_used-1] ) | |
835 sim_gas_last_depth = char_I_deco_gas_change[sim_gas_last_used-1]; | |
241 | 836 } |
388 | 837 else |
838 sim_gas_last_used = 0; // Gas 6 = manual set | |
241 | 839 } |
840 | |
167 | 841 ////////////////////////////////////////////////////////////////////////////// |
217 | 842 // Find deepest available gas. |
711
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843 // |
241 | 844 // Input: temp_depth_limit, |
845 // deco_gas_change[] | |
846 // sim_gas_delay, sim_gas_depth_used, sim_dive_mins. | |
212 | 847 // |
241 | 848 // RETURNS TRUE if a stop is needed for gas switch. |
849 // | |
850 // Output: temp_depth_limit, sim_gas_delay, sim_gas_depth_used IFF the is a switch. | |
212 | 851 // |
241 | 852 // NOTE: might be called from bottom (when sim_gas_delay and sim_gas_depth_used |
853 // are null), or during the ascent to make sure we are not passing a | |
854 // stop (in which case both can be already set). | |
855 // | |
856 static unsigned char gas_switch_deepest(void) | |
201 | 857 { |
241 | 858 overlay unsigned char switch_deco = 0, switch_last = 0; |
201 | 859 |
860 if (char_I_const_ppO2 == 0) | |
861 { | |
225 | 862 overlay unsigned char j; |
863 | |
241 | 864 // Loop over all enabled gas, to find the deepest one, |
340
ecbbbd423e86
BUGFIX save negativ temperatures in logbook (bbbug #6)
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865 // above last used gas, but below temp_depth_limit. |
338 | 866 for(j=0; j<NUM_GAS; ++j) |
225 | 867 { |
241 | 868 // Gas not (yet) allowed ? Skip ! |
869 if( temp_depth_limit > deco_gas_change[j] ) | |
870 continue; | |
871 | |
353
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872 // Gas deeper (or equal) than the current one ? Skip ! |
241 | 873 if( sim_gas_last_depth && deco_gas_change[j] >= sim_gas_last_depth ) |
874 continue; | |
875 | |
876 // First, or deeper ? | |
247
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877 if( switch_deco < deco_gas_change[j] ) |
241 | 878 { |
879 switch_deco = deco_gas_change[j]; | |
388 | 880 switch_last = j+1; // 1..5 |
241 | 881 } |
225 | 882 } |
201 | 883 } |
884 | |
203 | 885 // If there is a better gas available |
241 | 886 if( switch_deco ) |
201 | 887 { |
646 | 888 unsigned char delay; |
889 delay = read_custom_function(55); | |
555
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890 |
241 | 891 assert( !sim_gas_last_depth || sim_gas_last_depth > switch_deco ); |
201 | 892 |
241 | 893 // Should restart gas-switch delay only when gas do changes... |
894 assert( sim_gas_delay <= sim_dive_mins ); | |
217 | 895 |
241 | 896 sim_gas_last_depth = switch_deco; |
897 sim_gas_last_used = switch_last; | |
555
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898 sim_gas_delay = delay |
540
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899 + sim_dive_mins; |
217 | 900 |
555
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901 if( delay ) |
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902 { |
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903 temp_depth_limit = switch_deco; |
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904 return 1; |
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905 } |
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906 else |
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907 return 0; |
217 | 908 } |
909 | |
241 | 910 sim_gas_delay = 0; |
911 return 0; | |
217 | 912 } |
913 | |
914 ////////////////////////////////////////////////////////////////////////////// | |
915 // Calculate gas switches | |
711
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916 // |
217 | 917 // |
918 // Input: N2_ratio, He_ratio. | |
919 // sim_gas_last_used | |
920 // | |
921 // Output: calc_N2_ratio, calc_He_ratio | |
922 // | |
241 | 923 static void gas_switch_set(void) |
217 | 924 { |
564 | 925 assert( sim_gas_last_used <= NUM_GAS ); |
217 | 926 |
388 | 927 if( sim_gas_last_used == 0 ) // Gas6 = manualy set gas. |
224 | 928 { |
929 calc_N2_ratio = N2_ratio; | |
711
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|
930 calc_He_ratio = He_ratio; |
224 | 931 } |
932 else | |
933 { | |
934 calc_N2_ratio = char_I_deco_N2_ratio[sim_gas_last_used-1] * 0.01; | |
711
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935 calc_He_ratio = char_I_deco_He_ratio[sim_gas_last_used-1] * 0.01; |
217 | 936 } |
201 | 937 |
938 assert( 0.0 <= calc_N2_ratio && calc_N2_ratio <= 0.95 ); | |
939 assert( 0.0 <= calc_He_ratio && calc_He_ratio <= 0.95 ); | |
940 assert( (calc_N2_ratio + calc_He_ratio) <= 1.00 ); | |
941 } | |
942 | |
943 ////////////////////////////////////////////////////////////////////////////// | |
944 // | |
212 | 945 // Input: calc_N2_ratio, calc_He_ratio : simulated gas mix. |
509 | 946 // temp_deco : simulated respiration pressure |
276 | 947 // float_deco_distance : security factor. |
310
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|
948 // Water-vapor pressure inside limbs (ppWater). |
212 | 949 // |
236 | 950 // Output: ppN2, ppHe. |
212 | 951 // |
952 static void sim_alveolar_presures(void) | |
201 | 953 { |
212 | 954 overlay float deco_diluent = temp_deco; // new in v.101 |
955 | |
276 | 956 // Take deco offset into account, but not at surface. |
957 // Note: this should be done on ambiant pressure, hence before | |
958 // computing the diluant partial pressure... | |
959 if( deco_diluent > pres_surface ) | |
960 deco_diluent += float_deco_distance; | |
961 | |
212 | 962 //---- CCR mode : deco gas switch ? -------------------------------------- |
276 | 963 if( char_I_const_ppO2 != 0 ) |
711
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964 { |
276 | 965 // In CCR mode, use calc_XX_ratio instead of XX_ratio. |
966 // Note: PPO2 and ratios are known outside the lumbs, so there is no | |
310
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967 // ppWater in the equations below: |
321 | 968 deco_diluent -= const_ppO2; |
276 | 969 deco_diluent /= calc_N2_ratio + calc_He_ratio; |
212 | 970 |
971 if (deco_diluent > temp_deco) | |
711
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|
972 deco_diluent = temp_deco; |
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|
973 } |
201 | 974 |
310
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975 if( deco_diluent > ppWater ) |
201 | 976 { |
310
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977 ppN2 = calc_N2_ratio * (deco_diluent - ppWater); |
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978 ppHe = calc_He_ratio * (deco_diluent - ppWater); |
201 | 979 } |
980 else | |
981 { | |
236 | 982 ppN2 = 0.0; |
201 | 983 ppHe = 0.0; |
984 } | |
236 | 985 assert( 0.0 <= ppN2 && ppN2 < 14.0 ); |
201 | 986 assert( 0.0 <= ppHe && ppHe < 14.0 ); |
987 } | |
988 | |
989 ////////////////////////////////////////////////////////////////////////////// | |
167 | 990 // clear_tissue |
991 // | |
165 | 992 // optimized in v.101 (var_N2_a) |
167 | 993 // |
994 // preload tissues with standard pressure for the given ambient pressure. | |
995 // Note: fixed N2_ratio for standard air. | |
201 | 996 // |
167 | 997 static void clear_tissue(void) |
116 | 998 { |
511
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diff
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|
999 overlay float p; |
116 | 1000 |
167 | 1001 // Kludge: the 0.0002 of 0.7902 are missing with standard air. |
1002 N2_ratio = 0.7902; | |
212 | 1003 pres_respiration = int_I_pres_respiration * 0.001; |
711
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|
1004 |
511
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1005 p = N2_ratio * (pres_respiration - ppWater); |
338 | 1006 for(ci=0; ci<NUM_COMP; ci++) |
126 | 1007 { |
511
2a6293641d51
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1008 // cycle through the 16 Bühlmann N2 tissues |
339 | 1009 pres_tissue_N2[ci] = p; |
197 | 1010 |
1011 // cycle through the 16 Bühlmann tissues for Helium | |
339 | 1012 pres_tissue_He[ci] = 0.0; |
511
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1013 } |
116 | 1014 |
169
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1015 clear_deco_table(); |
126 | 1016 char_O_deco_status = 0; |
1017 char_O_nullzeit = 0; | |
168 | 1018 int_O_ascenttime = 0; |
126 | 1019 char_O_gradient_factor = 0; |
1020 char_O_relative_gradient_GF = 0; | |
258 | 1021 |
1022 calc_lead_tissue_limit = 0.0; | |
1023 char_O_gtissue_no = 0; | |
167 | 1024 } |
116 | 1025 |
167 | 1026 ////////////////////////////////////////////////////////////////////////////// |
1027 // calc_hauptroutine | |
1028 // | |
1029 // this is the major code in dive mode calculates: | |
116 | 1030 // the tissues, |
167 | 1031 // the bottom time, |
1032 // and simulates the ascend with all deco stops. | |
171 | 1033 // |
1034 // The deco_state sequence is : | |
1035 // 3 (at surface) | |
1036 // +---> 0 : calc nullzeit | |
1037 // | 2 : simulate ascent to first stop (at 10m/min, less that 16x 1min simu) | |
1038 // | +-> 1 : simulate up to 16min of stops. | |
1039 // | +------< not finished | |
1040 // +--------< finish | |
1041 // | |
312
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1042 // Added steps 6,5 for @+5 calculation: |
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1043 // 6 = ascent to first stop (same as 2), except continue to 7 |
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1044 // 7 = same as 1, except loop to 7. |
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1045 // |
167 | 1046 static void calc_hauptroutine(void) |
116 | 1047 { |
711
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|
1048 static unsigned char backup_gas_used = 0; |
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parents:
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diff
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|
1049 static unsigned char backup_gas_depth = 0; |
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parents:
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diff
changeset
|
1050 static unsigned char backup_gas_delay = 0; |
186 | 1051 |
711
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parents:
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|
1052 calc_hauptroutine_data_input(); |
116 | 1053 |
711
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parents:
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changeset
|
1054 calc_hauptroutine_update_tissues(); |
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parents:
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diff
changeset
|
1055 calc_gradient_factor(); |
116 | 1056 |
711
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parents:
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diff
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|
1057 // toggle between calculation for nullzeit (bottom time), |
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parents:
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|
1058 // deco stops |
167 | 1059 // and more deco stops (continue) |
697 | 1060 switch( char_O_deco_status ) |
711
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|
1061 { |
186 | 1062 case 3: //---- At surface: start a new dive ------------------------------ |
711
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|
1063 clear_deco_table(); |
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|
1064 copy_deco_table(); |
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parents:
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changeset
|
1065 int_O_ascenttime = 0; // Reset DTR. |
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diff
changeset
|
1066 int_O_extra_ascenttime = 0; |
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|
1067 char_O_nullzeit = 0; // Reset bottom time. |
278 | 1068 char_O_deco_status = 0; // Calc bottom-time/nullzeit next iteration. |
201 | 1069 |
217 | 1070 // Values that should be reset just once for the full real dive. |
1071 // This is used to record the lowest stop for the whole dive, | |
1072 // Including ACCROSS all simulated ascent. | |
695 | 1073 low_depth = 0.0; |
567 | 1074 locked_GF_step = 0.0; |
217 | 1075 |
1076 // Reset gas switch history. | |
241 | 1077 backup_gas_used = sim_gas_last_used = 0; |
1078 backup_gas_depth = sim_gas_last_depth = 0; | |
217 | 1079 backup_gas_delay = sim_gas_delay = 0; |
203 | 1080 sim_dive_mins = 0; |
1081 break; | |
186 | 1082 |
167 | 1083 case 0: //---- bottom time ----------------------------------------------- |
312
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1084 default: |
509 | 1085 gas_switch_find_current(); // Lookup for current gas & time. |
1086 gas_switch_set(); // setup calc_ratio's | |
1087 | |
711
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diff
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|
1088 calc_nullzeit(); |
534
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532
diff
changeset
|
1089 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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diff
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|
1090 { |
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BUGFIX NDL deco blocking stops during ascent when less than 10' TTS.
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532
diff
changeset
|
1091 char_O_deco_status = 0; // YES: recalc ndl next time. |
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|
1092 clear_deco_table(); // Also clear stops ! |
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BUGFIX NDL deco blocking stops during ascent when less than 10' TTS.
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diff
changeset
|
1093 copy_deco_table(); |
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BUGFIX NDL deco blocking stops during ascent when less than 10' TTS.
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diff
changeset
|
1094 char_O_deco_last_stop = 0; // And last stop (OSTC menu anim) |
ba1fb2e23f46
BUGFIX NDL deco blocking stops during ascent when less than 10' TTS.
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532
diff
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|
1095 } |
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BUGFIX NDL deco blocking stops during ascent when less than 10' TTS.
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532
diff
changeset
|
1096 else |
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BUGFIX NDL deco blocking stops during ascent when less than 10' TTS.
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diff
changeset
|
1097 char_O_deco_status = 2; // NO: calc ascent next time. |
711
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diff
changeset
|
1098 break; |
186 | 1099 |
1100 case 2: //---- Simulate ascent to first stop ----------------------------- | |
312
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1101 case 6: // @+5min variation |
203 | 1102 // Check proposed gas at begin of ascent simulation |
247
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|
1103 sim_dive_mins = int_I_divemins; // Init current time. |
241 | 1104 |
711
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parents:
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diff
changeset
|
1105 gas_switch_find_current(); // Lookup for current gas & time. |
532 | 1106 gas_switch_set(); // setup calc_ratio's |
1107 | |
247
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1108 backup_gas_used = sim_gas_last_used; // And save for later simu steps. |
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diff
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1109 backup_gas_depth = sim_gas_last_depth; // And save for later simu steps. |
203 | 1110 backup_gas_delay = sim_gas_delay; |
186 | 1111 |
711
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parents:
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diff
changeset
|
1112 sim_ascent_to_first_stop(); |
201 | 1113 |
312
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1114 // Calc stops next time (deco or gas switch). |
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1115 char_O_deco_status = 1 | ( char_O_deco_status & 4 ); |
711
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diff
changeset
|
1116 break; |
169
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168
diff
changeset
|
1117 |
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|
1118 case 1: //---- Simulate stops -------------------------------------------- |
312
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|
1119 case 5: // @+5 variation. |
711
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parents:
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diff
changeset
|
1120 calc_hauptroutine_calc_deco(); |
186 | 1121 |
1122 // If simulation is finished, restore the GF low reference, so that | |
1123 // next ascent simulation is done from the current depth: | |
711
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parents:
710
diff
changeset
|
1124 if( (char_O_deco_status & 3) == 0 ) |
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parents:
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diff
changeset
|
1125 { |
241 | 1126 sim_gas_last_used = backup_gas_used; |
1127 sim_gas_last_depth = backup_gas_depth; | |
247
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BUGFIX Count gas switch delay down during ascent (bug bb26)
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241
diff
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|
1128 sim_gas_delay = backup_gas_delay; |
186 | 1129 } |
711
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parents:
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diff
changeset
|
1130 break; |
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diff
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|
1131 } |
167 | 1132 |
116 | 1133 } |
1134 | |
167 | 1135 ////////////////////////////////////////////////////////////////////////////// |
1136 // calc_hauptroutine_data_input | |
1137 // | |
1138 // Reset all C-code dive parameters from their ASM-code values. | |
1139 // Detect gas change condition. | |
1140 // | |
116 | 1141 void calc_hauptroutine_data_input(void) |
1142 { | |
203 | 1143 overlay short int_temp; |
511
2a6293641d51
NEW NDL NDL faster/more precise simu (but no closed formula for trimix).
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parents:
509
diff
changeset
|
1144 overlay unsigned char g; |
711
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parents:
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diff
changeset
|
1145 |
197 | 1146 pres_respiration = int_I_pres_respiration * 0.001; |
1147 pres_surface = int_I_pres_surface * 0.001; | |
1148 N2_ratio = char_I_N2_ratio * 0.01; | |
1149 He_ratio = char_I_He_ratio * 0.01; | |
1150 float_deco_distance = char_I_deco_distance * 0.01; // Get offset is in mbar. | |
116 | 1151 |
126 | 1152 // ____________________________________________________ |
1153 // | |
1154 // _____________ G A S _ C H A N G E S ________________ | |
1155 // ____________________________________________________ | |
711
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diff
changeset
|
1156 |
212 | 1157 // Keep a margin of 150mbar = 1.50m |
1158 int_temp = (int_I_pres_respiration - int_I_pres_surface) | |
1159 + MBAR_REACH_GASCHANGE_AUTO_CHANGE_OFF; | |
711
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diff
changeset
|
1160 |
203 | 1161 // Gas are selectable if we did not pass the change depth by more than 1.50m: |
511
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509
diff
changeset
|
1162 for(g=0; g < NUM_GAS; ++g) |
126 | 1163 { |
511
2a6293641d51
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509
diff
changeset
|
1164 deco_gas_change[g] = 0; |
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509
diff
changeset
|
1165 if(char_I_deco_gas_change[g]) |
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509
diff
changeset
|
1166 if( int_temp > 100 *(short)char_I_deco_gas_change[g] ) |
711
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parents:
710
diff
changeset
|
1167 deco_gas_change[g] = char_I_deco_gas_change[g]; |
126 | 1168 } |
116 | 1169 |
197 | 1170 const_ppO2 = char_I_const_ppO2 * 0.01; |
1171 float_desaturation_multiplier = char_I_desaturation_multiplier * 0.01; | |
1172 float_saturation_multiplier = char_I_saturation_multiplier * 0.01; | |
1173 GF_low = char_I_GF_Low_percentage * 0.01; | |
1174 GF_high = char_I_GF_High_percentage * 0.01; | |
126 | 1175 GF_delta = GF_high - GF_low; |
116 | 1176 } |
1177 | |
167 | 1178 ////////////////////////////////////////////////////////////////////////////// |
171 | 1179 // |
1180 // | |
116 | 1181 void calc_hauptroutine_update_tissues(void) |
1182 { | |
197 | 1183 assert( 0.00 <= N2_ratio && N2_ratio <= 1.00 ); |
1184 assert( 0.00 <= He_ratio && He_ratio <= 1.00 ); | |
1185 assert( (N2_ratio + He_ratio) <= 0.95 ); | |
237 | 1186 assert( 0.800 < pres_respiration && pres_respiration < 14.0 ); |
197 | 1187 |
711
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diff
changeset
|
1188 pres_diluent = pres_respiration; |
307 | 1189 if( char_I_const_ppO2 != 0 ) // new in v.101 |
186 | 1190 { |
322 | 1191 overlay float flush_ppO2 = pres_respiration * (1.0 - N2_ratio - He_ratio); |
711
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parents:
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diff
changeset
|
1192 |
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diff
changeset
|
1193 pres_diluent -= const_ppO2; // new in v.101 |
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parents:
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diff
changeset
|
1194 pres_diluent /= N2_ratio + He_ratio; // new in v.101 |
321 | 1195 if( pres_diluent < 0.0 ) |
1196 pres_diluent = 0.0; | |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1197 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
|
1198 pres_diluent = pres_respiration; // new in v.101 |
307 | 1199 |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1200 char_O_diluent = (unsigned char)(pres_diluent/pres_respiration*100.0 + 0.5); |
322 | 1201 |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1202 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
|
1203 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
|
1204 char_O_flush_ppO2 = (unsigned char)(flush_ppO2*100.0 + 0.5); |
186 | 1205 } |
307 | 1206 |
310
b20fc8c4ac92
Fix EAD/END display (not mm, m with a trailling space)
JeanDo
parents:
307
diff
changeset
|
1207 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
|
1208 { |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1209 overlay float EAD, END; |
307 | 1210 |
310
b20fc8c4ac92
Fix EAD/END display (not mm, m with a trailling space)
JeanDo
parents:
307
diff
changeset
|
1211 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
|
1212 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
|
1213 |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1214 // 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
|
1215 // with plain air. |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1216 // ppN2 = 79% * (P_EAD - ppWater) |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1217 // EAD = (P_EAD - Psurface) * 10 |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1218 // ie: EAD = (ppN2 / 0.7902 + ppWater -Psurface) * 10 |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1219 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
|
1220 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
|
1221 char_O_EAD = (unsigned char)(EAD + 0.5); |
307 | 1222 |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1223 // END : Equivalent Narcotic Dive. |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1224 // 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
|
1225 // 0.23 btw). Hence the formula becomes: |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1226 // 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
|
1227 // ie: END = (Pambient - ppHe - Psurface) * BAR_TO_METER |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1228 // |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1229 // Source cited: |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1230 // 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
|
1231 // 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
|
1232 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
|
1233 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
|
1234 char_O_END = (unsigned char)(END + 0.5); |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1235 } |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1236 else // new in v.101 |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1237 { |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1238 ppN2 = 0.0; // new in v.101 |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1239 ppHe = 0.0; // new in v.101 |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1240 char_O_EAD = char_O_END = 0; |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1241 } |
116 | 1242 |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1243 if(!char_I_step_is_1min) |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1244 calc_tissue(0); |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1245 else |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1246 calc_tissue(1); |
186 | 1247 |
192 | 1248 // Calc limit for surface, ie. GF_high. |
258 | 1249 calc_limit(); |
186 | 1250 |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1251 int_O_gtissue_limit = (short)(calc_lead_tissue_limit * 1000); |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1252 int_O_gtissue_press = (short)((pres_tissue_N2[char_O_gtissue_no] + pres_tissue_He[char_O_gtissue_no]) * 1000); |
171 | 1253 } |
1254 | |
116 | 1255 |
167 | 1256 ////////////////////////////////////////////////////////////////////////////// |
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1257 // Compute stops. |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1258 // |
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1259 // 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
|
1260 // 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
|
1261 // 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
|
1262 // break the loop when total time > 512msec. |
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1263 // |
116 | 1264 void calc_hauptroutine_calc_deco(void) |
1265 { | |
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1266 overlay unsigned char loop; |
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1267 |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1268 for(loop = 0; loop < 16; ++loop) |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1269 { |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1270 // 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
|
1271 if( tmr3() & (512*32) ) |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1272 break; |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1273 |
241 | 1274 // Do not ascent while doing a gas switch ? |
203 | 1275 if( sim_gas_delay <= sim_dive_mins ) |
1276 { | |
241 | 1277 if( calc_nextdecodepth() ) |
1278 { | |
1279 if( temp_depth_limit == 0 ) | |
1280 goto Surface; | |
116 | 1281 |
241 | 1282 //---- We hit a stop at temp_depth_limit --------------------- |
317 | 1283 temp_deco = temp_depth_limit * METER_TO_BAR // Convert to relative bar, |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1284 + pres_surface; // To absolute. |
471 | 1285 if( !update_deco_table() ) // Adds a one minute stops. |
1286 goto Surface; // Deco table full: abort... | |
241 | 1287 } |
1288 else | |
1289 { | |
1290 //---- No stop ----------------------------------------------- | |
317 | 1291 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
|
1292 |
241 | 1293 //---- Finish computations once surface is reached ----------- |
1294 if( temp_deco <= pres_surface ) | |
1295 { | |
1296 Surface: | |
471 | 1297 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
|
1298 copy_deco_table(); |
312
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1299 |
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1300 calc_ascenttime(); |
471 | 1301 char_O_deco_status = 0; // calc nullzeit next time. |
1302 char_O_deco_last_stop = 0; // Surface reached (to animate menu) | |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1303 return; |
241 | 1304 } |
1305 } | |
212 | 1306 } |
1307 else | |
334
4ccdc72ec0e5
BUGFIX minor error in gas-switch algo (spurious surface decostop rarely added).
JeanDo
parents:
326
diff
changeset
|
1308 { |
4ccdc72ec0e5
BUGFIX minor error in gas-switch algo (spurious surface decostop rarely added).
JeanDo
parents:
326
diff
changeset
|
1309 // Note: if loop==0, temp_depth_limit might not be already set here. |
4ccdc72ec0e5
BUGFIX minor error in gas-switch algo (spurious surface decostop rarely added).
JeanDo
parents:
326
diff
changeset
|
1310 temp_depth_limit = (int)(0.5 + (temp_deco - pres_surface) * BAR_TO_METER); |
471 | 1311 if( !update_deco_table() ) // Just pass one minute. |
1312 goto Surface; // Deco table full: abort... | |
334
4ccdc72ec0e5
BUGFIX minor error in gas-switch algo (spurious surface decostop rarely added).
JeanDo
parents:
326
diff
changeset
|
1313 } |
197 | 1314 |
241 | 1315 //---- Then update tissue -------------------------------------------- |
203 | 1316 sim_dive_mins++; // Advance simulated time by 1 minute. |
241 | 1317 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
|
1318 sim_alveolar_presures(); // Updates ppN2 and ppHe. |
192 | 1319 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
|
1320 } |
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1321 |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1322 // Surface not reached, need more stops... for menu animation. |
278 | 1323 char_O_deco_last_stop = temp_depth_limit; // Reached depth. |
116 | 1324 } |
1325 | |
167 | 1326 ////////////////////////////////////////////////////////////////////////////// |
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1327 // Simulation ascention to first deco stop. |
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1328 // |
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1329 // 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
|
1330 // 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
|
1331 // (or we are already in deep shit). |
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1332 // |
334
4ccdc72ec0e5
BUGFIX minor error in gas-switch algo (spurious surface decostop rarely added).
JeanDo
parents:
326
diff
changeset
|
1333 // Input: pres_respiration |
4ccdc72ec0e5
BUGFIX minor error in gas-switch algo (spurious surface decostop rarely added).
JeanDo
parents:
326
diff
changeset
|
1334 // Output: temp_deco |
4ccdc72ec0e5
BUGFIX minor error in gas-switch algo (spurious surface decostop rarely added).
JeanDo
parents:
326
diff
changeset
|
1335 // |
312
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1336 // if char_O_deco_status indicate @+5 variant, add extra time at current depth, |
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1337 // before ascent. |
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1338 void sim_ascent_to_first_stop(void) |
116 | 1339 { |
698 | 1340 overlay unsigned char fast = 1; // 1min or 2sec steps. |
1341 | |
171 | 1342 update_startvalues(); |
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1343 clear_deco_table(); |
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1344 |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1345 temp_deco = pres_respiration; // Starts from current real depth. |
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1346 |
312
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1347 // Are we doing the special @+5min variation ? |
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1348 if(char_O_deco_status & 4) |
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1349 sim_extra_time(); |
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1350 |
212 | 1351 // Do we have a gas switch going on ? |
1352 if( sim_gas_delay > sim_dive_mins ) | |
1353 return; | |
1354 | |
241 | 1355 //---- Loop until first stop, gas switch, or surface is reached ---------- |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1356 for(;;) |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1357 { |
461 | 1358 overlay float old_deco = temp_deco; // Pamb backup (bars) |
460 | 1359 |
698 | 1360 // Try ascending 1 full minute (fast) or 2sec (!fast): |
1361 if( fast ) | |
1362 temp_deco -= 10*METER_TO_BAR; // 1 min, at 10m/min. ~ 1bar. | |
1363 else | |
1364 temp_deco -= (10.0/30.0)*METER_TO_BAR; // 2sec at 10m/min. | |
1365 | |
461 | 1366 if( temp_deco < pres_surface ) // But don't go over surface. |
1367 temp_deco = pres_surface; | |
203 | 1368 |
461 | 1369 // Recompute sim_lead_tissue_limit at GF_low (deepest stop), because |
1370 // one minute passed. | |
212 | 1371 sim_limit(GF_low); |
1372 | |
1373 // Did we reach deepest remaining stop ? | |
241 | 1374 if( temp_deco < sim_lead_tissue_limit ) |
212 | 1375 { |
461 | 1376 temp_deco = old_deco; // Restore last correct depth, |
698 | 1377 |
1378 if( fast ) | |
1379 { | |
1380 fast = 0; // Retry with 2sec steps. | |
1381 continue; | |
1382 } | |
1383 else | |
1384 break; // Done... | |
212 | 1385 } |
1386 | |
203 | 1387 // Did we reach surface ? |
460 | 1388 // NOTE: we should round BEFORE checking surface is reached. |
461 | 1389 temp_depth_limit = (unsigned char)(0.5 + (temp_deco - pres_surface) * BAR_TO_METER); |
1390 if( temp_depth_limit == 0 ) | |
203 | 1391 { |
1392 temp_deco = pres_surface; // Yes: finished ! | |
1393 break; | |
1394 } | |
169
e26f49674956
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1395 |
241 | 1396 // Check for gas change below new depth ? |
1397 if( gas_switch_deepest() ) | |
1398 { | |
334
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1399 assert( temp_depth_limit > 0); |
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1400 |
317 | 1401 temp_deco = temp_depth_limit * METER_TO_BAR + pres_surface; |
212 | 1402 break; |
241 | 1403 } |
171 | 1404 |
698 | 1405 if( fast ) |
1406 sim_dive_mins++; // Advance simulated time by 1 minute. | |
241 | 1407 sim_alveolar_presures(); // temp_deco --> ppN2/ppHe |
698 | 1408 sim_tissue(fast); // and update tissues for 1 min. |
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1409 } |
167 | 1410 } |
116 | 1411 |
167 | 1412 ////////////////////////////////////////////////////////////////////////////// |
312
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1413 // Simulation extra time at the current depth. |
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1414 // |
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1415 // This routine is used for @+5min feature. |
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1416 void sim_extra_time(void) |
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1417 { |
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1418 overlay unsigned char extra = read_custom_function(58); |
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1419 do { |
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1420 sim_dive_mins++; // Advance simulated time by 1 minute. |
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1421 sim_tissue(1); // and update tissues for 1 min. |
312
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1422 } while( --extra != 0 ); |
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1423 } |
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1424 |
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1425 ////////////////////////////////////////////////////////////////////////////// |
167 | 1426 // calc_tissue |
1427 // | |
116 | 1428 // optimized in v.101 |
167 | 1429 // |
184 | 1430 static void calc_tissue(PARAMETER unsigned char period) |
116 | 1431 { |
251 | 1432 assert( 0.00 <= ppN2 && ppN2 < 11.2 ); // 80% N2 at 130m |
1433 assert( 0.00 <= ppHe && ppHe < 12.6 ); // 90% He at 130m | |
236 | 1434 |
338 | 1435 for (ci=0;ci<NUM_COMP;ci++) |
126 | 1436 { |
258 | 1437 read_buhlmann_times(period); // 2 sec or 1 min period. |
116 | 1438 |
126 | 1439 // N2 |
339 | 1440 temp_tissue = (ppN2 - pres_tissue_N2[ci]) * var_N2_e; |
126 | 1441 temp_tissue_safety(); |
339 | 1442 pres_tissue_N2[ci] += temp_tissue; |
165 | 1443 |
126 | 1444 // He |
339 | 1445 temp_tissue = (ppHe - pres_tissue_He[ci]) * var_He_e; |
126 | 1446 temp_tissue_safety(); |
339 | 1447 pres_tissue_He[ci] += temp_tissue; |
192 | 1448 } |
167 | 1449 } |
116 | 1450 |
167 | 1451 ////////////////////////////////////////////////////////////////////////////// |
192 | 1452 // calc_limit |
167 | 1453 // |
192 | 1454 // New in v.111 : separated from calc_tissue(), and depends on GF value. |
167 | 1455 // |
258 | 1456 static void calc_limit(void) |
167 | 1457 { |
192 | 1458 char_O_gtissue_no = 255; |
1459 calc_lead_tissue_limit = 0.0; | |
1460 | |
338 | 1461 for(ci=0; ci<NUM_COMP;ci++) |
192 | 1462 { |
339 | 1463 overlay float N2 = pres_tissue_N2[ci]; |
1464 overlay float He = pres_tissue_He[ci]; | |
293
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1465 overlay float p = N2 + He; |
192 | 1466 |
258 | 1467 read_buhlmann_coefficients(); |
293
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1468 var_N2_a = (var_N2_a * N2 + var_He_a * He) / p; |
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1469 var_N2_b = (var_N2_b * N2 + var_He_b * He) / p; |
116 | 1470 |
192 | 1471 // Apply the Eric Baker's varying gradient factor correction. |
1472 // Note: the correction factor depends both on GF and b, | |
1473 // Actual values are in the 1.5 .. 1.0 range (for a GF=30%), | |
1474 // so that can change who is the leading gas... | |
1475 // Note: Also depends of the GF. So the calcul is different for | |
1476 // GF_low, current GF, or GF_high... | |
1477 // *BUT* calc_tissue() is used to compute bottom time, | |
1478 // hence what would happend at surface, | |
1479 // hence at GF_high. | |
509 | 1480 if( char_I_deco_model != 0 ) |
258 | 1481 p = ( p - var_N2_a * GF_high) * var_N2_b |
1482 / (GF_high + var_N2_b * (1.0 - GF_high)); | |
192 | 1483 else |
1484 p = (p - var_N2_a) * var_N2_b; | |
258 | 1485 if( p < 0.0 ) p = 0.0; |
192 | 1486 |
1487 if( p > calc_lead_tissue_limit ) | |
1488 { | |
1489 char_O_gtissue_no = ci; | |
1490 calc_lead_tissue_limit = p; | |
1491 } | |
1492 } | |
197 | 1493 |
338 | 1494 assert( char_O_gtissue_no < NUM_COMP ); |
197 | 1495 assert( 0.0 <= calc_lead_tissue_limit && calc_lead_tissue_limit <= 14.0); |
167 | 1496 } |
1497 | |
1498 ////////////////////////////////////////////////////////////////////////////// | |
1499 // calc_nullzeit | |
1500 // | |
1501 // calculates the remaining bottom time | |
1502 // | |
511
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1503 // NOTE: Erik Baker's closed formula works for Nitroxes. Trimix adds a second |
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1504 // exponential term to the M-value equation, making it impossible to |
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1505 // invert... So we have to make a fast-simu until we find a better way. |
509 | 1506 // |
1507 // Input: pres_respiration | |
1508 // Output: char_O_nullzeit | |
167 | 1509 // |
1510 static void calc_nullzeit(void) | |
1511 { | |
511
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1512 //---- Compute ppN2 and ppHe --------------------------------------------- |
509 | 1513 temp_deco = pres_respiration; |
1514 sim_alveolar_presures(); | |
167 | 1515 |
509 | 1516 char_O_nullzeit = 240; |
1517 for(ci=0; ci<NUM_COMP; ci++) | |
1518 { | |
511
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1519 //---- Read A/B values and loading factor for N2 and He -------------- |
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1520 overlay float tN2 = pres_tissue_N2[ci]; |
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1521 overlay float tHe = pres_tissue_He[ci]; |
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1522 overlay float t = tN2 + tHe; |
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1523 overlay unsigned char ndl; |
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1524 overlay unsigned char period = 10; |
192 | 1525 |
509 | 1526 read_buhlmann_coefficients(); |
511
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1527 read_buhlmann_times(2); // Starts with a 10min period. |
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1528 |
511
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1529 //---- Simulate for that tissue -------------------------------------- |
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1530 // NOTE: No need to simulate for longuer than the already found NDL. |
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1531 for(ndl=0; ndl<char_O_nullzeit;) |
509 | 1532 { |
511
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1533 //---- Compute updated mix M-value at surface |
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1534 overlay float a = (var_N2_a * tN2 + var_He_a * tHe) / t; |
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1535 overlay float b = (var_N2_b * tN2 + var_He_b * tHe) / t; |
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1536 overlay float M0 = (a + pres_surface/b); |
116 | 1537 |
511
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1538 //---- Add 10min/1min to N2/He tissues |
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1539 overlay float dTN2 = (ppN2 - tN2) * var_N2_e; |
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1540 overlay float dTHe = (ppHe - tHe) * var_He_e; |
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1541 |
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1542 //---- Apply security margin when using the non-GF model |
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1543 if( char_I_deco_model == 0 ) |
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1544 { |
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1545 dTN2 *= float_saturation_multiplier; |
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1546 dTHe *= float_saturation_multiplier; |
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1547 } |
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1548 else // Or GF-based model |
509 | 1549 M0 = GF_high * (M0 - pres_surface) + pres_surface; |
167 | 1550 |
511
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1551 //---- Simulate off-gasing while going to surface |
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1552 // TODO ! |
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1553 // dTN2 -= exp( ... ascent time ... ppN2...) |
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1554 // dTHe -= exp( ... ascent time ... ppHe...) |
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1555 |
534
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1556 //---- Ok now, and still ok to surface after 1 or 10 minutes ? |
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1557 if( (t <= M0) && (t + dTN2 + dTHe <= M0) ) |
509 | 1558 { |
511
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1559 tN2 += dTN2; // YES: apply gas loadings, |
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1560 tHe += dTHe; |
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1561 t = tN2 + tHe; |
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1562 ndl += period; // increment NDL, |
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1563 continue; // and loop. |
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1564 } |
116 | 1565 |
511
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1566 //---- Should we retry with smaller steps ? |
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1567 if( period == 10 ) |
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1568 { |
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1569 read_buhlmann_times(1); // 1min coefs. |
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1570 period = 1; |
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1571 continue; |
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1572 } |
167 | 1573 |
511
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1574 //---- ELSE make a linear approx for the last minute |
524 | 1575 // Usefull to have a meaningfull rounding of NDL. |
1576 // But ONLY it positive (negativ casted to unsigned is bad). | |
1577 if( M0 > t ) | |
1578 ndl += (unsigned char)(0.5f + (M0-t)/(dTN2+dTHe)); | |
511
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1579 break; |
509 | 1580 } |
511
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1581 |
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1582 // Keep the shortest NDL found |
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1583 if( ndl < char_O_nullzeit ) |
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1584 char_O_nullzeit = ndl; |
339 | 1585 } |
167 | 1586 } |
116 | 1587 |
167 | 1588 ////////////////////////////////////////////////////////////////////////////// |
1589 // calc_ascenttime | |
1590 // | |
312
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1591 // Summup ascent from bottom to surface, at 1 bar/min, 1min for last 3 meters, |
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1592 // and all stops. |
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1593 // |
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1594 // Result in int_O_ascenttime, or int_O_extra_ascenttime if in @+5min variant. |
169
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1595 static void calc_ascenttime(void) |
116 | 1596 { |
323 | 1597 overlay unsigned char x; |
1598 overlay unsigned short sum; | |
168 | 1599 |
323 | 1600 // + 0.7 to count 1 minute ascent time from 3 metre to surface |
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1601 overlay float ascent = pres_respiration - pres_surface + 0.7; |
323 | 1602 if (ascent < 0.0) |
1603 ascent = 0.0; | |
1604 sum = (unsigned short)(ascent + 0.99); | |
312
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1605 |
338 | 1606 for(x=0; x<NUM_STOPS && internal_deco_depth[x]; x++) |
323 | 1607 sum += (unsigned short)internal_deco_time[x]; |
1608 | |
1609 if( char_O_deco_status == 1 ) | |
1610 int_O_ascenttime = sum; | |
126 | 1611 else |
323 | 1612 int_O_extra_ascenttime = sum; |
167 | 1613 } |
116 | 1614 |
167 | 1615 ////////////////////////////////////////////////////////////////////////////// |
1616 // update_startvalues | |
1617 // | |
116 | 1618 // updated in v.102 |
167 | 1619 // |
116 | 1620 void update_startvalues(void) |
1621 { | |
167 | 1622 overlay unsigned char x; |
116 | 1623 |
201 | 1624 // Start ascent simulation with current tissue partial pressures. |
711
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1625 for(x=0; x<NUM_COMP; x++) |
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1626 { |
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1627 sim_pres_tissue_N2[x] = pres_tissue_N2[x]; |
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1628 sim_pres_tissue_He[x] = pres_tissue_He[x]; |
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1629 } |
197 | 1630 |
201 | 1631 // No leading tissue (yet) for this ascent simulation. |
197 | 1632 sim_lead_tissue_limit = 0.0; |
1633 sim_lead_tissue_no = 255; | |
167 | 1634 } |
116 | 1635 |
167 | 1636 ////////////////////////////////////////////////////////////////////////////// |
192 | 1637 // sim_tissue |
167 | 1638 // |
116 | 1639 // optimized in v.101 |
167 | 1640 // |
1641 // Function very simular to calc_tissue, but: | |
1642 // + Use a 1min or 10min period. | |
1643 // + Do it on sim_pres_tissue, instead of pres_tissue. | |
184 | 1644 static void sim_tissue(PARAMETER unsigned char period) |
116 | 1645 { |
251 | 1646 assert( 0.00 <= ppN2 && ppN2 < 11.2 ); // 80% N2 at 130m |
1647 assert( 0.00 <= ppHe && ppHe < 12.6 ); // 90% He at 130m | |
236 | 1648 |
338 | 1649 for(ci=0; ci<NUM_COMP; ci++) |
126 | 1650 { |
258 | 1651 read_buhlmann_times(period); // 1 or 10 minute(s) interval |
165 | 1652 |
126 | 1653 // N2 |
339 | 1654 temp_tissue = (ppN2 - sim_pres_tissue_N2[ci]) * var_N2_e; |
126 | 1655 temp_tissue_safety(); |
339 | 1656 sim_pres_tissue_N2[ci] += temp_tissue; |
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1657 |
126 | 1658 // He |
339 | 1659 temp_tissue = (ppHe - sim_pres_tissue_He[ci]) * var_He_e; |
126 | 1660 temp_tissue_safety(); |
339 | 1661 sim_pres_tissue_He[ci] += temp_tissue; |
192 | 1662 } |
167 | 1663 } |
116 | 1664 |
167 | 1665 ////////////////////////////////////////////////////////////////////////////// |
192 | 1666 // sim_limit() |
1667 // | |
1668 // New in v.111 | |
1669 // | |
1670 // Function separated from sim_tissue() to allow recomputing limit on | |
1671 // different depth, because it depends on current gradient factor. | |
167 | 1672 // |
192 | 1673 static void sim_limit(PARAMETER float GF_current) |
116 | 1674 { |
212 | 1675 assert( 0.0 < GF_current && GF_current <= 1.0f); |
1676 | |
192 | 1677 sim_lead_tissue_limit = 0.0; |
212 | 1678 sim_lead_tissue_no = 0; // If no one is critic, keep first tissue. |
192 | 1679 |
338 | 1680 for(ci=0; ci<NUM_COMP; ci++) |
192 | 1681 { |
339 | 1682 overlay float N2 = sim_pres_tissue_N2[ci]; |
1683 overlay float He = sim_pres_tissue_He[ci]; | |
241 | 1684 overlay float p = N2 + He; |
192 | 1685 |
258 | 1686 read_buhlmann_coefficients(); |
241 | 1687 var_N2_a = (var_N2_a * N2 + var_He_a * He) / p; |
1688 var_N2_b = (var_N2_b * N2 + var_He_b * He) / p; | |
192 | 1689 |
1690 // Apply the Eric Baker's varying gradient factor correction. | |
1691 // Note: the correction factor depends both on GF and b, | |
1692 // Actual values are in the 1.5 .. 1.0 range (for a GF=30%), | |
1693 // so that can change who is the leading gas... | |
1694 // Note: Also depends of the GF_current... | |
509 | 1695 if( char_I_deco_model != 0 ) |
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1696 p = ( p - var_N2_a * GF_current) |
302 | 1697 / (GF_current / var_N2_b + 1.0 - GF_current); |
192 | 1698 else |
1699 p = (p - var_N2_a) * var_N2_b; | |
1700 | |
1701 if( p > sim_lead_tissue_limit ) | |
1702 { | |
1703 sim_lead_tissue_no = ci; | |
1704 sim_lead_tissue_limit = p; | |
1705 } | |
1706 } // for ci | |
197 | 1707 |
338 | 1708 assert( sim_lead_tissue_no < NUM_COMP ); |
237 | 1709 assert( 0.0 <= sim_lead_tissue_limit && sim_lead_tissue_limit <= 14.0 ); |
167 | 1710 } |
116 | 1711 |
167 | 1712 ////////////////////////////////////////////////////////////////////////////// |
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1713 // clear_deco_table |
167 | 1714 // |
1715 // unchanged in v.101 | |
1716 // | |
169
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1717 static void clear_deco_table(void) |
116 | 1718 { |
169
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1719 overlay unsigned char x; |
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1720 |
338 | 1721 for(x=0; x<NUM_STOPS; ++x) |
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1722 { |
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1723 internal_deco_time [x] = 0; |
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1724 internal_deco_depth[x] = 0; |
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1725 } |
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1726 } |
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1727 |
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1728 ////////////////////////////////////////////////////////////////////////////// |
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1729 // update_deco_table |
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1730 // |
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1731 // Add 1 min to current stop. |
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1732 // |
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1733 // Inputs: |
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1734 // temp_depth_limit = stop's depth, in meters. |
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1735 // In/Out: |
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1736 // internal_deco_depth[] : depth (in metres) of each stops. |
169
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1737 // internal_deco_time [] : time (in minutes) of each stops. |
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1738 // |
471 | 1739 static unsigned char update_deco_table() |
169
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1740 { |
192 | 1741 overlay unsigned char x; |
247
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1742 assert( temp_depth_limit < 128 ); // Can't be negativ (overflown). |
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1743 assert( temp_depth_limit > 0 ); // No stop at surface... |
169
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1744 |
338 | 1745 for(x=0; x<NUM_STOPS; ++x) |
192 | 1746 { |
212 | 1747 // Make sure deco-stops are recorded in order: |
334
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1748 assert( !internal_deco_depth[x] || temp_depth_limit <= (internal_deco_depth[x]& 0x7F) ); |
212 | 1749 |
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1750 if( (internal_deco_depth[x] & 0x7F) == temp_depth_limit ) |
192 | 1751 { |
1752 // Do not overflow (max 255') | |
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1753 if( internal_deco_time[x] < 255 ) |
192 | 1754 { |
1755 internal_deco_time[x]++; | |
471 | 1756 return 1; |
192 | 1757 } |
1758 // But store extra in the next stop... | |
169
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1759 } |
192 | 1760 |
169
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1761 if( internal_deco_depth[x] == 0 ) |
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1762 { |
192 | 1763 internal_deco_depth[x] = temp_depth_limit; |
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1764 if( sim_gas_delay >= sim_dive_mins ) |
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1765 internal_deco_depth[x] |= 0x80; |
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1766 |
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1767 internal_deco_time[x] = 1; |
471 | 1768 return 1; |
169
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1769 } |
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1770 } |
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1771 |
192 | 1772 // Can't store stops at more than 96m. |
1773 // Or stops at less that 3m too. | |
169
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1774 // Just do nothing with that... |
471 | 1775 return 0; |
167 | 1776 } |
116 | 1777 |
167 | 1778 ////////////////////////////////////////////////////////////////////////////// |
1779 // calc_gradient_factor | |
1780 // | |
165 | 1781 // optimized in v.101 (var_N2_a) |
116 | 1782 // new code in v.102 |
167 | 1783 // |
1784 static void calc_gradient_factor(void) | |
116 | 1785 { |
197 | 1786 overlay float gf; |
339 | 1787 overlay float N2 = pres_tissue_N2[char_O_gtissue_no]; |
1788 overlay float He = pres_tissue_He[char_O_gtissue_no]; | |
237 | 1789 |
338 | 1790 assert( char_O_gtissue_no < NUM_COMP ); |
237 | 1791 assert( 0.800 <= pres_respiration && pres_respiration < 14.0 ); |
197 | 1792 |
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1793 // tissue > respiration (currently off-gasing) |
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1794 // GF = 0% when respiration == tissue, ie. bubbles are at equilibrium. |
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1795 // GF = 100% when respiration == limit. |
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1796 temp_tissue = N2 + He; |
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1797 if( temp_tissue <= pres_respiration ) |
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1798 gf = 0.0; |
197 | 1799 else |
1800 { | |
293
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1801 overlay float limit = calc_lead_tissue_limit; |
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1802 // NOTE: in GF model, calc_lead_tissue_limit include already the |
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1803 // correction due to gradient factor. To compute the actual |
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1804 // current GF, we need to (re-)compute the raw ambiant-pressure |
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1805 // limit from the Bühlmann model. |
509 | 1806 if( char_I_deco_model != 0 ) |
293
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1807 { |
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1808 ci = char_O_gtissue_no; |
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1809 read_buhlmann_coefficients(); |
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1810 var_N2_a = (var_N2_a * N2 + var_He_a * He) / temp_tissue; |
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1811 var_N2_b = (var_N2_b * N2 + var_He_b * He) / temp_tissue; |
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1812 limit = (temp_tissue - var_N2_a) * var_N2_b; |
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1813 } |
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1814 |
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1815 gf = (temp_tissue - pres_respiration) |
293
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1816 / (temp_tissue - limit) |
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1817 * 100.0; |
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1818 if( gf > 254.5 ) gf = 255.0; |
197 | 1819 if( gf < 0.0 ) gf = 0.0; |
1820 } | |
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1821 char_O_gradient_factor = (unsigned char)(gf+0.5f); |
116 | 1822 |
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1823 if( char_I_deco_model != 0 ) // calculate relative gradient factor |
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1824 { |
197 | 1825 overlay float rgf; |
1826 | |
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1827 if( low_depth < 3 ) |
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1828 rgf = GF_high; |
197 | 1829 else |
1830 { | |
317 | 1831 overlay float temp1 = low_depth * METER_TO_BAR; |
197 | 1832 overlay float temp2 = pres_respiration - pres_surface; |
186 | 1833 |
197 | 1834 if (temp2 <= 0) |
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1835 rgf = GF_high; |
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1836 else if (temp2 >= temp1) |
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1837 rgf = GF_low; |
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1838 else |
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1839 rgf = GF_low + (temp1 - temp2)/temp1*GF_delta; |
197 | 1840 } |
186 | 1841 |
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1842 rgf = gf / rgf; // gf is already in percent |
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1843 if( rgf < 0.0 ) rgf = 0.0; |
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1844 if( rgf > 254.5 ) rgf = 255.0; |
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1845 char_O_relative_gradient_GF = (unsigned char)(rgf+0.5f); |
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1846 } // calc relative gradient factor |
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1847 else |
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1848 { |
186 | 1849 char_O_relative_gradient_GF = char_O_gradient_factor; |
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1850 } |
167 | 1851 } |
116 | 1852 |
167 | 1853 ////////////////////////////////////////////////////////////////////////////// |
1854 // deco_calc_desaturation_time | |
1855 // | |
116 | 1856 // FIXED N2_ratio |
1857 // unchanged in v.101 | |
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1858 // Inputs: int_I_pres_surface, ppWater, char_I_desaturation_multiplier |
233 | 1859 // Outputs: int_O_desaturation_time, char_O_tissue_saturation[0..31] |
167 | 1860 // |
116 | 1861 void deco_calc_desaturation_time(void) |
1862 { | |
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1863 RESET_C_STACK |
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1864 |
233 | 1865 assert( 800 < int_I_pres_surface && int_I_pres_surface < 1100 ); |
1866 assert( 0 < char_I_desaturation_multiplier && char_I_desaturation_multiplier <= 100 ); | |
1867 | |
237 | 1868 N2_ratio = 0.7902; // FIXED sum as stated in bühlmann |
233 | 1869 pres_surface = int_I_pres_surface * 0.001; |
310
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1870 ppN2 = N2_ratio * (pres_surface - ppWater); |
126 | 1871 int_O_desaturation_time = 0; |
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1872 float_desaturation_multiplier = char_I_desaturation_multiplier * (0.01 * SURFACE_DESAT_FACTOR); |
233 | 1873 |
339 | 1874 for(ci=0; ci<NUM_COMP; ci++) |
126 | 1875 { |
251 | 1876 overlay unsigned short desat_time; // For a particular compartiment, in min. |
1877 overlay float temp1; | |
1878 overlay float temp2; | |
1879 overlay float temp3; | |
1880 overlay float temp4; | |
338 | 1881 |
509 | 1882 read_buhlmann_ht(); |
338 | 1883 |
126 | 1884 // saturation_time (for flight) and N2_saturation in multiples of halftime |
1885 // version v.100: 1.1 = 10 percent distance to totally clean (totally clean is not possible, would take infinite time ) | |
1886 // new in version v.101: 1.07 = 7 percent distance to totally clean (totally clean is not possible, would take infinite time ) | |
260
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1887 // changes in v.101: 1.05 = 5 percent dist to totally clean is new desaturation point for display and NoFly calculations |
126 | 1888 // N2 |
339 | 1889 temp1 = 1.05 * ppN2 - pres_tissue_N2[ci]; |
1890 temp2 = ppN2 - pres_tissue_N2[ci]; | |
126 | 1891 if (temp2 >= 0.0) |
233 | 1892 temp1 = 0.0; |
126 | 1893 else |
1894 temp1 = temp1 / temp2; | |
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1895 |
251 | 1896 if( 0.0 < temp1 && temp1 < 1.0 ) |
126 | 1897 { |
260
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1898 // 0.6931 is ln(2), because the math function log() calculates with a base of e not 2 as requested. |
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1899 // minus because log is negative. |
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1900 temp1 = log(1.0 - temp1) / -0.6931; // temp1 is the multiples of half times necessary. |
509 | 1901 temp2 = var_N2_ht * temp1 / float_desaturation_multiplier; // time necessary (in minutes ) for complete desaturation (see comment about 5 percent) , new in v.101: float_desaturation_multiplier |
260
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1902 |
126 | 1903 } |
1904 else | |
1905 { | |
233 | 1906 temp1 = 0.0; |
1907 temp2 = 0.0; | |
126 | 1908 } |
116 | 1909 |
126 | 1910 // He |
339 | 1911 temp3 = 0.1 - pres_tissue_He[ci]; |
126 | 1912 if (temp3 >= 0.0) |
233 | 1913 temp3 = 0.0; |
126 | 1914 else |
339 | 1915 temp3 = - temp3 / pres_tissue_He[ci]; |
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1916 |
251 | 1917 if( 0.0 < temp3 && temp3 < 1.0 ) |
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|
1918 { |
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1919 temp3 = log(1.0 - temp3) / -0.6931; // temp1 is the multiples of half times necessary. |
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1920 // 0.6931 is ln(2), because the math function log() calculates with a base of e not 2 as requested. |
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|
1921 // minus because log is negative |
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|
1922 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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|
1923 } |
126 | 1924 else |
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|
1925 { |
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|
1926 temp3 = 0.0; |
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|
1927 temp4 = 0.0; |
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|
1928 } |
116 | 1929 |
126 | 1930 // saturation_time (for flight) |
1931 if (temp4 > temp2) | |
203 | 1932 desat_time = (unsigned short)temp4; |
126 | 1933 else |
203 | 1934 desat_time = (unsigned short)temp2; |
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|
1935 |
251 | 1936 if(desat_time > int_O_desaturation_time) |
1937 int_O_desaturation_time = desat_time; | |
116 | 1938 |
126 | 1939 // N2 saturation in multiples of halftime for display purposes |
339 | 1940 temp2 = temp1 * 20.0; // 0 = 1/8, 120 = 0, 249 = 8 |
1941 temp2 = temp2 + 80.0; // set center | |
126 | 1942 if (temp2 < 0.0) |
1943 temp2 = 0.0; | |
1944 if (temp2 > 255.0) | |
1945 temp2 = 255.0; | |
339 | 1946 char_O_tissue_N2_saturation[ci] = (char)temp2; |
233 | 1947 |
126 | 1948 // He saturation in multiples of halftime for display purposes |
339 | 1949 temp4 = temp3 * 20.0; // 0 = 1/8, 120 = 0, 249 = 8 |
1950 temp4 = temp4 + 80.0; // set center | |
126 | 1951 if (temp4 < 0.0) |
1952 temp4 = 0.0; | |
1953 if (temp4 > 255.0) | |
1954 temp4 = 255.0; | |
339 | 1955 char_O_tissue_He_saturation[ci] = (char)temp4; |
126 | 1956 } // for |
167 | 1957 } |
116 | 1958 |
167 | 1959 ////////////////////////////////////////////////////////////////////////////// |
1960 // calc_wo_deco_step_1_min | |
1961 // | |
116 | 1962 // FIXED N2 Ratio |
1963 // optimized in v.101 (...saturation_multiplier) | |
1964 // desaturation slowed down to 70,42% | |
167 | 1965 // |
1966 static void calc_wo_deco_step_1_min(void) | |
116 | 1967 { |
251 | 1968 assert( 800 < int_I_pres_surface && int_I_pres_surface < 1100 ); |
1969 assert( 800 < int_I_pres_respiration && int_I_pres_respiration < 1100 ); | |
1970 assert( 100 <= char_I_saturation_multiplier && char_I_saturation_multiplier < 200 ); | |
1971 assert( 0 < char_I_desaturation_multiplier && char_I_desaturation_multiplier <= 100 ); | |
1972 | |
126 | 1973 N2_ratio = 0.7902; // FIXED, sum lt. buehlmann |
368 | 1974 pres_respiration = pres_surface = int_I_pres_surface * 0.001; |
1975 ppN2 = N2_ratio * (pres_respiration - ppWater); | |
200 | 1976 ppHe = 0.0; |
491
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|
1977 float_desaturation_multiplier = char_I_desaturation_multiplier * (0.01 * SURFACE_DESAT_FACTOR); |
197 | 1978 float_saturation_multiplier = char_I_saturation_multiplier * 0.01; |
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|
1979 |
339 | 1980 calc_tissue(1); // update the pressure in the tissues N2/He in accordance with the new ambient pressure |
711
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|
1981 |
169
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Merge decoplan display for both GF and Buhlmann models.
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diff
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|
1982 clear_deco_table(); |
200 | 1983 char_O_deco_status = 3; // surface new in v.102 : stays in surface state. |
126 | 1984 char_O_nullzeit = 0; |
168 | 1985 int_O_ascenttime = 0; |
323 | 1986 int_O_extra_ascenttime = 0; |
126 | 1987 calc_gradient_factor(); |
167 | 1988 } |
126 | 1989 |
167 | 1990 ////////////////////////////////////////////////////////////////////////////// |
368 | 1991 // calc_dive_interval |
1992 // | |
1993 // Prepare tissue for delay before the next dive simulation. | |
1994 // | |
1995 // Inputs: char_I_dive_interval == delay before dive (in 10' steps). | |
1996 // Outputs: pres_tissue_N2/He[], CNS_fraction | |
1997 // | |
1998 // Should be protected by deco_push_tissues_to_vault(), | |
1999 // deco_pull_tissues_from_vault() | |
2000 // | |
2001 // desaturation slowed down to 70,42%. | |
2002 // | |
511
2a6293641d51
NEW NDL NDL faster/more precise simu (but no closed formula for trimix).
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509
diff
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|
2003 static void calc_dive_interval(void) |
368 | 2004 { |
2005 overlay unsigned char t; | |
491
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490
diff
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|
2006 overlay unsigned char backup_model; |
368 | 2007 |
2008 //---- Initialize simulation parameters ---------------------------------- | |
2009 N2_ratio = 0.7902; // FIXED, sum lt. buehlmann | |
2010 pres_respiration = pres_surface = int_I_pres_surface * 0.001; | |
2011 ppN2 = N2_ratio * (pres_respiration - ppWater); | |
2012 ppHe = 0.0; | |
491
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490
diff
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|
2013 float_desaturation_multiplier = char_I_desaturation_multiplier * (0.01 * SURFACE_DESAT_FACTOR); |
368 | 2014 float_saturation_multiplier = char_I_saturation_multiplier * 0.01; |
2015 | |
568 | 2016 // Make sure SURFACE_DESAT_FACTOR is applied: |
491
560764da0629
BUGFIX Surface desat factor missing for Interval planning in GF mode.
JeanDo
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490
diff
changeset
|
2017 backup_model = char_I_deco_model; |
560764da0629
BUGFIX Surface desat factor missing for Interval planning in GF mode.
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490
diff
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|
2018 char_I_deco_model = 0; |
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BUGFIX Surface desat factor missing for Interval planning in GF mode.
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490
diff
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|
2019 |
368 | 2020 //---- Perform simulation ------------------------------------------------ |
2021 for(t=0; t<char_I_dive_interval; ++t) | |
2022 { | |
2023 calc_tissue(2); // period = 10min. | |
2024 CNS_fraction = 0.92587471 * CNS_fraction; // Half-time = 90min: (1/2)^(1/9) | |
2025 } | |
514 | 2026 assert( 0.0 <= CNS_fraction && CNS_fraction <= 2.56 ); |
2027 char_O_CNS_fraction = (unsigned char)(CNS_fraction * 100.0 + 0.5); | |
711
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parents:
710
diff
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|
2028 |
491
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490
diff
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|
2029 //---- Restore model ----------------------------------------------------- |
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diff
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|
2030 char_I_deco_model = backup_model; |
368 | 2031 } |
2032 | |
2033 ////////////////////////////////////////////////////////////////////////////// | |
167 | 2034 ////////////////////////////////////////////////////////////////////////////// |
2035 ////////////////////////////////// deco_hash ///////////////////////////////// | |
2036 ////////////////////////////////////////////////////////////////////////////// | |
2037 ////////////////////////////////////////////////////////////////////////////// | |
126 | 2038 |
184 | 2039 #ifndef CROSS_COMPILE |
116 | 2040 void deco_hash(void) |
2041 { | |
167 | 2042 overlay unsigned char md_i, md_j; // Loop index. |
2043 overlay unsigned char md_t; | |
2044 overlay unsigned char md_buffer[16]; | |
2045 overlay unsigned char md_temp; | |
203 | 2046 overlay unsigned short md_pointer; |
167 | 2047 |
122
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FIX again reset C data stack and frame pointer when entering C code.
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116
diff
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|
2048 RESET_C_STACK |
711
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parents:
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diff
changeset
|
2049 |
126 | 2050 // init |
164 | 2051 for(md_i=0;md_i<16;md_i++) |
126 | 2052 { |
2053 md_state[md_i] = 0; | |
164 | 2054 char_O_hash[md_i] = 0; |
126 | 2055 } // for md_i 16 |
116 | 2056 |
126 | 2057 _asm |
167 | 2058 movlw 0x01 // md_pi address. |
2059 movwf TBLPTRU,0 | |
2060 movlw 0x7E | |
2061 movwf TBLPTRH,0 | |
2062 movlw 0x00 | |
2063 movwf TBLPTRL,0 | |
126 | 2064 _endasm; |
165 | 2065 md_i = 0; |
2066 do { | |
126 | 2067 _asm |
2068 TBLRDPOSTINC | |
2069 movff TABLAT,md_temp | |
2070 _endasm | |
165 | 2071 md_pi_subst[md_i++] = md_temp; |
2072 } while( md_i != 0 ); | |
2073 | |
126 | 2074 _asm |
167 | 2075 movlw 0x00 |
2076 movwf TBLPTRU,0 | |
2077 movlw 0x00 | |
2078 movwf TBLPTRH,0 | |
2079 movlw 0x00 | |
2080 movwf TBLPTRL,0 | |
126 | 2081 _endasm |
167 | 2082 |
126 | 2083 // cycle buffers |
2084 for (md_pointer=0x0000;md_pointer<0x17f3;md_pointer++) | |
2085 { | |
2086 md_t = 0; | |
2087 for (md_i=0;md_i<16;md_i++) | |
2088 { | |
2089 if(md_pointer == 9) | |
164 | 2090 md_temp = char_O_hash[md_i]; |
126 | 2091 else |
2092 { | |
2093 _asm | |
167 | 2094 TBLRDPOSTINC |
2095 movff TABLAT,md_temp | |
126 | 2096 _endasm |
2097 } // else | |
167 | 2098 |
2099 md_buffer[md_i] = md_temp; | |
186 | 2100 md_state[md_i+16] = md_temp; |
2101 md_state[md_i+32] = (unsigned char)(md_temp ^ md_state[md_i]); | |
126 | 2102 } // for md_i 16 |
711
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parents:
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diff
changeset
|
2103 |
126 | 2104 for (md_i=0;md_i<18;md_i++) |
2105 { | |
2106 for (md_j=0;md_j<48;md_j++) | |
2107 { | |
167 | 2108 md_state[md_j] ^= md_pi_subst[md_t]; |
126 | 2109 md_t = md_state[md_j]; |
2110 } // for md_j 48 | |
2111 md_t = (unsigned char)(md_t+1); | |
2112 } // for md_i 18 | |
164 | 2113 md_t = char_O_hash[15]; |
711
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parents:
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diff
changeset
|
2114 |
126 | 2115 for (md_i=0;md_i<16;md_i++) |
2116 { | |
167 | 2117 char_O_hash[md_i] ^= md_pi_subst[(md_buffer[md_i] ^ md_t)]; |
164 | 2118 md_t = char_O_hash[md_i]; |
126 | 2119 } // for md_i 16 |
2120 } // for md_pointer | |
116 | 2121 } // void deco_hash(void) |
184 | 2122 #endif |
116 | 2123 |
167 | 2124 ////////////////////////////////////////////////////////////////////////////// |
2125 // deco_clear_CNS_fraction | |
2126 // | |
116 | 2127 // new in v.101 |
167 | 2128 // |
116 | 2129 void deco_clear_CNS_fraction(void) |
2130 { | |
122
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FIX again reset C data stack and frame pointer when entering C code.
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diff
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|
2131 RESET_C_STACK |
237 | 2132 |
126 | 2133 CNS_fraction = 0.0; |
2134 char_O_CNS_fraction = 0; | |
167 | 2135 } |
116 | 2136 |
167 | 2137 ////////////////////////////////////////////////////////////////////////////// |
2138 // deco_calc_CNS_fraction | |
2139 // | |
439
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BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
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388
diff
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|
2140 // Input: char_I_actual_ppO2 : Current condition (in decibars). |
b9cf06de8aca
BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
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388
diff
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|
2141 // 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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388
diff
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|
2142 // CNS_fraction : velue before period. |
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388
diff
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|
2143 // Output: CNS_fraction, char_O_CNS_fraction |
167 | 2144 // |
116 | 2145 void deco_calc_CNS_fraction(void) |
2146 { | |
711
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diff
changeset
|
2147 overlay float time_factor = 1.0f; |
126 | 2148 RESET_C_STACK |
167 | 2149 |
471 | 2150 assert( 0.0 <= CNS_fraction && CNS_fraction <= 2.56 ); |
237 | 2151 assert( char_I_actual_ppO2 > 15 ); |
2152 | |
439
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BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
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|
2153 if( char_I_step_is_1min == 1 ) |
292 | 2154 time_factor = 30.0f; |
439
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|
2155 else if( char_I_step_is_1min == 2 ) |
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|
2156 time_factor = 300.0f; |
710 | 2157 //------------------------------------------------------------------------ |
2158 // Don't increase CNS below 0.5 bar, but keep it steady. | |
126 | 2159 if (char_I_actual_ppO2 < 50) |
292 | 2160 ; // no changes |
710 | 2161 //------------------------------------------------------------------------ |
2162 // Below (and including) 1.60 bar | |
711
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diff
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|
2163 else if (char_I_actual_ppO2 < 61) |
710 | 2164 CNS_fraction += time_factor/(-533.07 * char_I_actual_ppO2 + 54000.0); |
711
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parents:
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diff
changeset
|
2165 else if (char_I_actual_ppO2 < 71) |
710 | 2166 CNS_fraction += time_factor/(-444.22 * char_I_actual_ppO2 + 48600.0); |
711
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parents:
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diff
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|
2167 else if (char_I_actual_ppO2 < 81) |
710 | 2168 CNS_fraction += time_factor/(-355.38 * char_I_actual_ppO2 + 42300.0); |
711
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parents:
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diff
changeset
|
2169 else if (char_I_actual_ppO2 < 91) |
710 | 2170 CNS_fraction += time_factor/(-266.53 * char_I_actual_ppO2 + 35100.0); |
711
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parents:
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diff
changeset
|
2171 else if (char_I_actual_ppO2 < 111) |
710 | 2172 CNS_fraction += time_factor/(-177.69 * char_I_actual_ppO2 + 27000.0); |
711
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parents:
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diff
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|
2173 else if (char_I_actual_ppO2 < 152) |
710 | 2174 CNS_fraction += time_factor/( -88.84 * char_I_actual_ppO2 + 17100.0); |
711
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diff
changeset
|
2175 else if (char_I_actual_ppO2 < 167) |
710 | 2176 CNS_fraction += time_factor/(-222.11 * char_I_actual_ppO2 + 37350.0); |
2177 //------------------------------------------------------------------------ | |
2178 // Arieli et all.(2002): Modeling pulmonary and CNS O2 toxicity: | |
2179 // J Appl Physiol 92: 248–256, 2002, doi:10.1152/japplphysiol.00434.2001 | |
2180 // Formula (A1) based on value for 1.55 and c=20 | |
2181 // example calculation: Sqrt((1.7/1.55)^20)*0.000404 | |
711
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diff
changeset
|
2182 else if (char_I_actual_ppO2 < 172) |
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parents:
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diff
changeset
|
2183 CNS_fraction += time_factor*0.00102; |
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parents:
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diff
changeset
|
2184 else if (char_I_actual_ppO2 < 177) |
292 | 2185 CNS_fraction += time_factor*0.00136; |
711
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diff
changeset
|
2186 else if (char_I_actual_ppO2 < 182) |
292 | 2187 CNS_fraction += time_factor*0.00180; |
711
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diff
changeset
|
2188 else if (char_I_actual_ppO2 < 187) |
292 | 2189 CNS_fraction += time_factor*0.00237; |
711
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parents:
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diff
changeset
|
2190 else if (char_I_actual_ppO2 < 192) |
292 | 2191 CNS_fraction += time_factor*0.00310; |
711
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diff
changeset
|
2192 else if (char_I_actual_ppO2 < 198) |
292 | 2193 CNS_fraction += time_factor*0.00401; |
711
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diff
changeset
|
2194 else if (char_I_actual_ppO2 < 203) |
292 | 2195 CNS_fraction += time_factor*0.00517; |
711
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diff
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|
2196 else if (char_I_actual_ppO2 < 233) |
292 | 2197 CNS_fraction += time_factor*0.0209; |
126 | 2198 else |
292 | 2199 CNS_fraction += time_factor*0.0482; // value for 2.5 |
116 | 2200 |
514 | 2201 if( CNS_fraction > 2.5 ) |
439
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2202 CNS_fraction = 2.55; |
514 | 2203 if( CNS_fraction < 0.0 ) |
126 | 2204 CNS_fraction = 0.0; |
2205 | |
443
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2206 char_O_CNS_fraction = (unsigned char)(100.0 * CNS_fraction + 0.5); |
167 | 2207 } |
116 | 2208 |
167 | 2209 ////////////////////////////////////////////////////////////////////////////// |
439
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2210 // deco_calc_CNS_planning |
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2211 // |
511
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2212 // Compute CNS during predicted ascent. |
488 | 2213 // |
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2214 // Note: Needs a call to deco_push_tissues_to_vault(), |
488 | 2215 // deco_pull_tissues_from_vault() to avoid trashing everything... |
2216 // | |
2217 // Input: CNS_fraction, char_O_deco_time[], char_O_deco_depth[] | |
2218 // Output: CNS_fraction, char_O_CNS_fraction | |
2219 // | |
439
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2220 void deco_calc_CNS_planning(void) |
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2221 { |
490
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2222 overlay unsigned char backup_gas_last_depth; |
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2223 overlay unsigned char backup_gas_last_used; |
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2224 overlay unsigned short backup_gas_delay; |
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2225 overlay unsigned short backup_dive_mins; |
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2226 overlay unsigned char backup_actual_ppO2; |
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2227 |
439
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2228 RESET_C_STACK |
490
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|
2229 |
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|
2230 // Backup state machine |
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|
2231 backup_gas_last_depth = sim_gas_last_depth; |
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2232 backup_gas_last_used = sim_gas_last_used; |
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2233 backup_gas_delay = sim_gas_delay; |
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2234 backup_dive_mins = sim_dive_mins; |
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2235 backup_actual_ppO2 = char_I_actual_ppO2; |
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2236 |
439
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2237 // Uses 1min CNS period: |
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2238 char_I_step_is_1min = 1; |
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2239 |
439
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2240 //---- Retrieve bottom Gas used, and set variables. |
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2241 sim_gas_last_used = char_I_first_gas; |
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2242 sim_gas_last_depth = 0; // Surface gas marker. |
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2243 gas_switch_set(); // Sets initial calc_N2/He_ratio |
439
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2244 |
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2245 //---- CCR mode : do the full TTS at once -------------------------------- |
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2246 if( char_I_const_ppO2 != 0 ) |
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2247 { |
443
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2248 overlay unsigned short t; // Needs 16bits here ! |
439
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2249 char_I_actual_ppO2 = char_I_const_ppO2; |
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2250 for(t=0; t<int_O_ascenttime; ++t) |
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2251 deco_calc_CNS_fraction(); |
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2252 } |
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2253 else //---- OC mode : have to follow all gas switches... ----------------- |
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2254 { |
443
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2255 overlay unsigned char i = 0; // Decostop loop counter |
439
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2256 overlay float actual_ppO2; |
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2257 overlay unsigned char time, t; |
563 | 2258 overlay unsigned char deepest_first = (read_custom_function(54) == 0); |
439
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2259 |
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2260 //---- Ascent to surface delay |
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2261 // NOTE: count as if time is spent with bottom pressure, |
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2262 // AND the bottom gas |
541
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BUGFIX decoplan: ppO2 for CNS is inspired, alveolar (ie. no ppWater correction).
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|
2263 actual_ppO2 = (pres_surface + char_I_bottom_depth * METER_TO_BAR) |
439
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2264 * (1.0 - calc_N2_ratio - calc_He_ratio); |
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2265 if( actual_ppO2 < 0.0 ) actual_ppO2 = 0.0; |
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2266 if( actual_ppO2 > 2.50 ) actual_ppO2 = 2.55; |
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2267 char_I_actual_ppO2 = (unsigned char)(100.0 * actual_ppO2 + 0.5); |
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|
2268 |
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|
2269 // Ascent time (rounded up): |
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|
2270 time = (unsigned char)(0.1 * char_I_bottom_depth + 0.5); |
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|
2271 |
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2272 for(t=0; t<time; ++t) |
490
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|
2273 { |
439
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|
2274 deco_calc_CNS_fraction(); |
490
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|
2275 sim_dive_mins++; |
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|
2276 } |
439
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|
2277 |
563 | 2278 //---- Do all further stops ------------------------------------------ |
439
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2279 for(i=0; i<NUM_STOPS; ++i) |
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2280 { |
563 | 2281 overlay unsigned char switch_gas; |
2282 | |
2283 //---- Get next stop, possibly in reverse order ------------------ | |
2284 if( deepest_first ) | |
2285 { | |
2286 time = char_O_deco_time[i]; | |
2287 temp_depth_limit = char_O_deco_depth[i]; | |
2288 } | |
2289 else | |
2290 { | |
2291 time = char_O_deco_time[(NUM_STOPS-1)-i]; | |
2292 temp_depth_limit = char_O_deco_depth[(NUM_STOPS-1)-i]; | |
2293 } | |
2294 if( time == 0 ) continue; | |
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|
2295 |
563 | 2296 //---- Gas Switch ? ---------------------------------------------- |
2297 switch_gas = temp_depth_limit & 0x80; // Switch flag. | |
2298 temp_depth_limit &= 0x7F; // True stop depth. | |
2299 | |
2300 if( switch_gas ) | |
2301 { | |
2302 gas_switch_deepest(); | |
2303 gas_switch_set(); | |
2304 } | |
2305 | |
2306 //---- Convert Depth and N2_ratio to ppO2 ------------------------ | |
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BUGFIX decoplan: ppO2 for CNS is inspired, alveolar (ie. no ppWater correction).
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|
2307 actual_ppO2 = (pres_surface + temp_depth_limit * METER_TO_BAR) |
439
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2308 * (1.0 - calc_N2_ratio - calc_He_ratio); |
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|
2309 if( actual_ppO2 < 0.0 ) actual_ppO2 = 0.0; |
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|
2310 if( actual_ppO2 > 2.50 ) actual_ppO2 = 2.55; |
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|
2311 char_I_actual_ppO2 = (unsigned char)(100.0 * actual_ppO2 + 0.5); |
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|
2312 |
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|
2313 //---- Apply the stop |
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|
2314 for(t=0; t<time; ++t) |
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|
2315 { |
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|
2316 deco_calc_CNS_fraction(); |
490
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|
2317 sim_dive_mins++; |
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|
2318 } |
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2319 } |
488 | 2320 } |
2321 | |
563 | 2322 //---- Back to normal mode... -------------------------------------------- |
488 | 2323 char_I_step_is_1min = 0; |
490
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|
2324 sim_gas_last_depth = backup_gas_last_depth; |
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|
2325 sim_gas_last_used = backup_gas_last_used; |
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|
2326 sim_gas_delay = backup_gas_delay; |
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|
2327 sim_dive_mins = backup_dive_mins; |
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|
2328 char_I_actual_ppO2 = backup_actual_ppO2; |
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|
2329 } |
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|
2330 |
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|
2331 ////////////////////////////////////////////////////////////////////////////// |
167 | 2332 // deco_calc_CNS_decrease_15min |
2333 // | |
116 | 2334 // new in v.101 |
167 | 2335 // |
116 | 2336 // calculates the half time of 90 minutes in 6 steps of 15 min |
200 | 2337 // (Used in sleepmode, for low battery mode). |
167 | 2338 // |
116 | 2339 // Output: char_O_CNS_fraction |
2340 // Uses and Updates: CNS_fraction | |
167 | 2341 // |
116 | 2342 void deco_calc_CNS_decrease_15min(void) |
2343 { | |
237 | 2344 RESET_C_STACK |
514 | 2345 assert( 0.0 <= CNS_fraction && CNS_fraction <= 2.56 ); |
237 | 2346 |
126 | 2347 CNS_fraction = 0.890899 * CNS_fraction; |
514 | 2348 char_O_CNS_fraction = (unsigned char)(CNS_fraction * 100.0 + 0.5); |
167 | 2349 } |
116 | 2350 |
167 | 2351 ////////////////////////////////////////////////////////////////////////////// |
2352 // deco_calc_percentage | |
2353 // | |
116 | 2354 // new in v.101 |
167 | 2355 // |
116 | 2356 // calculates int_I_temp * char_I_temp / 100 |
2357 // output is int_I_temp | |
200 | 2358 // |
2359 // Used to compute NoFly remaining time. | |
222
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2360 // |
116 | 2361 void deco_calc_percentage(void) |
2362 { | |
122
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|
2363 RESET_C_STACK |
222
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2364 |
237 | 2365 assert( 60 <= char_I_temp && char_I_temp <= 100 ); |
564 | 2366 assert( int_I_temp < 5760 ); // Less than 4 days = 96h... |
237 | 2367 |
222
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2368 int_I_temp = (unsigned short)(((float)int_I_temp * (float)char_I_temp) * 0.01 ); |
237 | 2369 |
554
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2370 assert( int_I_temp < 5760 ); // Less than 96h too... |
222
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2371 } |
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2372 |
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2373 |
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2374 ////////////////////////////////////////////////////////////////////////////// |
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2375 // deco_gas_volumes |
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2376 // |
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2377 // new in v.111 |
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Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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2378 // |
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2379 // calculates volumes for each gas. |
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2380 // |
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2381 // 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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|
2382 // Gas list. |
d995e220ddac
BUGFIX Gas Usage when first gas is not #1 (bug BB22).
JeanDo
parents:
237
diff
changeset
|
2383 // char_I_first_gas is the bottom gas. |
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2384 // decoplan (char_O_deco_depth, char_O_deco_time). |
234
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
JeanDo
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233
diff
changeset
|
2385 // 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
|
2386 // 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
|
2387 // CF#57 == deco liters/minutes (5 .. 50) or bar/min. |
224 | 2388 // 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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parents:
218
diff
changeset
|
2389 // |
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2390 void deco_gas_volumes(void) |
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2391 { |
338 | 2392 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
|
2393 overlay float bottom_usage, deco_usage; |
234
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
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parents:
233
diff
changeset
|
2394 overlay unsigned char i, deepest_first; |
646 | 2395 overlay unsigned char gas, depth; |
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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parents:
218
diff
changeset
|
2396 RESET_C_STACK |
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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parents:
218
diff
changeset
|
2397 |
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2398 //---- initialize with bottom consumption -------------------------------- |
338 | 2399 for(i=0; i<NUM_GAS; ++i) // Nothing yet... |
240
d995e220ddac
BUGFIX Gas Usage when first gas is not #1 (bug BB22).
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parents:
237
diff
changeset
|
2400 volumes[i] = 0.0; |
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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218
diff
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|
2401 |
338 | 2402 assert(1 <= char_I_first_gas && char_I_first_gas <= NUM_GAS); |
241 | 2403 gas = char_I_first_gas - 1; |
2404 | |
478
fd8266b511cc
New SAC (CF56/CF57) in 5..50 l/min range (no more decimal).
JeanDo
parents:
471
diff
changeset
|
2405 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
|
2406 if( char_I_const_ppO2 == 0 && bottom_usage > 0.0 ) |
265 | 2407 volumes[gas] |
2408 = (char_I_bottom_depth*0.1 + 1.0) // Use Psurface = 1.0 bar. | |
2409 * char_I_bottom_time // in minutes. | |
2410 * bottom_usage; // In liter/minutes. | |
579
fff1d38625f0
BUGFIX: GasVolumes should check for a gas switch before the first stop.
JeanDo
parents:
568
diff
changeset
|
2411 |
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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218
diff
changeset
|
2412 //---- Ascent usage ------------------------------------------------------ |
234
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
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parents:
233
diff
changeset
|
2413 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
|
2414 deco_usage = (float) read_custom_function(57); // In liter/minutes. |
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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parents:
218
diff
changeset
|
2415 |
646 | 2416 depth = char_I_bottom_depth; |
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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parents:
218
diff
changeset
|
2417 |
338 | 2418 for(i=0; i<NUM_STOPS; ++i) |
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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parents:
218
diff
changeset
|
2419 { |
658
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2420 overlay unsigned char newDepth, time; |
234
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
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parents:
233
diff
changeset
|
2421 |
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
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parents:
233
diff
changeset
|
2422 // Manage stops in reverse order (CF#54) |
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
JeanDo
parents:
233
diff
changeset
|
2423 if( deepest_first ) |
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
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parents:
233
diff
changeset
|
2424 { |
241 | 2425 time = char_O_deco_time[i]; |
234
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
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parents:
233
diff
changeset
|
2426 if( time == 0 ) break; // End of table: done. |
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
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233
diff
changeset
|
2427 |
658
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2428 newDepth = char_O_deco_depth[i] & 0x7F; |
234
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
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parents:
233
diff
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|
2429 } |
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BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
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233
diff
changeset
|
2430 else |
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BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
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parents:
233
diff
changeset
|
2431 { |
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
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233
diff
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|
2432 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
|
2433 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
changeset
|
2434 |
658
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
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parents:
646
diff
changeset
|
2435 newDepth = char_O_deco_depth[31-i] & 0x7F; |
234
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
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233
diff
changeset
|
2436 } |
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BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
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233
diff
changeset
|
2437 |
658
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2438 //---- Gas switch during this step ----------------------------------- |
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2439 { |
658
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2440 overlay unsigned char newGas = 0; |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2441 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
|
2442 overlay unsigned char j; |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2443 |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2444 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
|
2445 { |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2446 // Skip gas without changing depth: |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2447 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
|
2448 continue; |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2449 // Select gas changed between [newDepth .. depth] |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2450 if( newDepth <= char_I_deco_gas_change[j] |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2451 && char_I_deco_gas_change[j] <= depth ) |
646 | 2452 { |
658
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2453 // 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
|
2454 // Note: that = means changing gas at BEGINNING of this stop. |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2455 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
|
2456 { |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2457 newGas = j; |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2458 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
|
2459 } |
646 | 2460 } |
658
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2461 } |
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2462 |
658
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2463 if( newStop ) // Did we find something ? |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2464 { |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2465 // usage BEFORE gas switch (if any), at 10m/min : |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2466 if( deco_usage > 0.0 && depth > newStop ) |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2467 // Plus usage during ascent to the next stop, at 10m/min. |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2468 volumes[gas] += ((depth+newStop)*0.05 + 1.0) // average depth --> bar. |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2469 * (depth-newStop)*0.1 // metre --> min |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2470 * deco_usage; |
646 | 2471 |
658
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2472 // Do gas switch: |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2473 gas = newGas; |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2474 depth = newStop; |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2475 } |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2476 } |
646 | 2477 |
2478 // usage AFTER gas switch (if any), at 10m/min : | |
2479 if( depth > newDepth ) | |
2480 volumes[gas] += ((depth+newDepth)*0.05 + 1.0) // average depth --> bar. | |
2481 * (depth-newDepth)*0.1 // metre --> min | |
2482 * deco_usage; | |
2483 | |
2484 // Do stop: | |
2485 depth = newDepth; | |
2486 | |
2487 // Usage at stop: | |
478
fd8266b511cc
New SAC (CF56/CF57) in 5..50 l/min range (no more decimal).
JeanDo
parents:
471
diff
changeset
|
2488 if( deco_usage > 0.0 ) |
265 | 2489 volumes[gas] += (depth*0.1 + 1.0) // depth --> bar. |
2490 * time // in minutes. | |
646 | 2491 * deco_usage; // in xxx / min @ 1bar. |
265 | 2492 else |
2493 volumes[gas] = 65535.0; | |
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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218
diff
changeset
|
2494 } |
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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218
diff
changeset
|
2495 |
646 | 2496 // From last stop to surface |
2497 if( deco_usage > 0.0 ) | |
2498 volumes[gas] += (depth*0.05 + 1.0) // avg depth --> bar. | |
2499 * depth * 0.1 // time to surface, in minutes. | |
2500 * deco_usage; // in xxx / min @ 1bar. | |
2501 | |
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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parents:
218
diff
changeset
|
2502 //---- convert results for the ASM interface ----------------------------- |
338 | 2503 for(i=0; i<NUM_GAS; ++i) |
441
4826dd98514b
NEW: Decoplanner OC volumes in liters (or bars), up to 65000.
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parents:
439
diff
changeset
|
2504 if( volumes[i] > 65534.0 ) |
224 | 2505 int_O_gas_volumes[i] = 65535; |
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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218
diff
changeset
|
2506 else |
441
4826dd98514b
NEW: Decoplanner OC volumes in liters (or bars), up to 65000.
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439
diff
changeset
|
2507 int_O_gas_volumes[i] = (unsigned short)(volumes[i] + 0.5); |
116 | 2508 } |
2509 | |
167 | 2510 ////////////////////////////////////////////////////////////////////////////// |
2511 | |
116 | 2512 void deco_push_tissues_to_vault(void) |
2513 { | |
167 | 2514 overlay unsigned char x; |
122
3003a8040b78
FIX again reset C data stack and frame pointer when entering C code.
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parents:
116
diff
changeset
|
2515 RESET_C_STACK |
167 | 2516 |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
2517 cns_vault = CNS_fraction; |
697 | 2518 low_depth_vault = low_depth; |
2519 | |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
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parents:
710
diff
changeset
|
2520 for (x=0;x<NUM_COMP;x++) |
339 | 2521 { |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
2522 pres_tissue_N2_vault[x] = pres_tissue_N2[x]; |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
2523 pres_tissue_He_vault[x] = pres_tissue_He[x]; |
339 | 2524 } |
116 | 2525 } |
167 | 2526 |
116 | 2527 void deco_pull_tissues_from_vault(void) |
2528 { | |
167 | 2529 overlay unsigned char x; |
122
3003a8040b78
FIX again reset C data stack and frame pointer when entering C code.
JeanDo
parents:
116
diff
changeset
|
2530 RESET_C_STACK |
167 | 2531 |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
2532 for (x=0; x<NUM_COMP; x++) |
339 | 2533 { |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
2534 pres_tissue_N2[x] = pres_tissue_N2_vault[x]; |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
2535 pres_tissue_He[x] = pres_tissue_He_vault[x]; |
339 | 2536 } |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
2537 |
292 | 2538 // Restore both CNS variable, too. |
2539 CNS_fraction = cns_vault; | |
514 | 2540 char_O_CNS_fraction = (unsigned char)(CNS_fraction * 100.0 + 0.5); |
697 | 2541 |
2542 // GF history too: | |
2543 low_depth = low_depth_vault; | |
2544 locked_GF_step = GF_delta / low_depth; | |
116 | 2545 } |
2546 | |
167 | 2547 ////////////////////////////////////////////////////////////////////////////// |
2548 // | |
184 | 2549 #ifndef CROSS_COMPILE |
2550 void main() {} | |
2551 #endif |