Mercurial > public > mk2
annotate code_part1/OSTC_code_c_part2/p2_deco.c @ 824:6cb5518e74d2
NEW: Quit Simulator automatically when starting a real dive
author | heinrichsweikamp |
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date | Wed, 29 Jul 2015 19:22:50 +0200 |
parents | 162058703100 |
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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 ////////////////////////////////////////////////////////////////////////////// | |
815 | 10 // OSTC Mk.2, 2N and 2C - 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. |
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91 // 2013/10/22: [mH] Remove CF55 stuff |
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92 // 2013/12/21: [jDG] Fix CNS calculation in decoplan w/o marked gas switch |
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93 // 2014/06/16: [jDG] Fix Helium diluant. Fix volumes with many travel mix. |
785
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94 // 2014/06/29: [mH] Compute int_O_ceiling |
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95 // 2015/06/12: [jDG] Fix NDL prediction while desaturating with the Buhlmann model. |
116 | 96 // |
167 | 97 // TODO: |
98 // + Allow to abort MD2 calculation (have to restart next time). | |
99 // | |
100 // Literature: | |
200 | 101 // Bühlmann, Albert: Tauchmedizin; 4. Auflage [2002]; |
116 | 102 // 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 |
103 // Morrison, Stuart; 2000; DIY DECOMPRESSION; http://www.lizardland.co.uk/DIYDeco.html | |
104 // Balthasar, Steffen; Dekompressionstheorie I: Neo Haldane Modelle; http://www.txfreak.de/dekompressionstheorie_1.pdf | |
105 // Baker, Erik C.; Clearing Up The Confusion About "Deep Stops" | |
106 // Baker, Erik C.; Understanding M-values; http://www.txfreak.de/understanding_m-values.pdf | |
167 | 107 // |
108 // | |
116 | 109 |
110 // ********************* | |
111 // ** I N C L U D E S ** | |
112 // ********************* | |
113 #include <math.h> | |
167 | 114 |
192 | 115 // *********************************************** |
116 // ** V A R I A B L E S D E F I N I T I O N S ** | |
117 // *********************************************** | |
118 | |
119 #include "p2_definitions.h" | |
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120 #define TEST_MAIN |
509 | 121 #include "../OSTC_code_asm_part1/shared_definitions.h" |
192 | 122 |
200 | 123 // Water vapour partial pressure in the lumb. |
527 | 124 #define ppWater 0.0627 |
317 | 125 #define METER_TO_BAR 0.09985 |
126 #define BAR_TO_METER 10.0150 // (1.0/METER_TO_BAR) | |
200 | 127 |
491
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128 // Surface security factor |
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129 #define SURFACE_DESAT_FACTOR 0.7042 |
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130 |
167 | 131 // ************************* |
132 // ** P R O T O T Y P E S ** | |
133 // ************************* | |
134 | |
135 static void calc_hauptroutine(void); | |
136 static void calc_nullzeit(void); | |
137 | |
192 | 138 static void calc_tissue(PARAMETER unsigned char period); |
258 | 139 static void calc_limit(void); |
192 | 140 |
167 | 141 static void clear_tissue(void); |
142 static void calc_ascenttime(void); | |
143 static void update_startvalues(void); | |
169
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144 static void clear_deco_table(void); |
471 | 145 static unsigned char update_deco_table(void); |
192 | 146 |
147 static void sim_tissue(PARAMETER unsigned char period); | |
148 static void sim_limit(PARAMETER float GF_current); | |
312
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149 static void sim_extra_time(void); |
368 | 150 static void calc_dive_interval(void); |
312
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151 |
167 | 152 static void calc_gradient_factor(void); |
153 static void calc_wo_deco_step_1_min(void); | |
154 | |
155 static void calc_hauptroutine_data_input(void); | |
156 static void calc_hauptroutine_update_tissues(void); | |
157 static void calc_hauptroutine_calc_deco(void); | |
169
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158 static void sim_ascent_to_first_stop(void); |
167 | 159 |
241 | 160 static unsigned char gas_switch_deepest(void); |
161 static void gas_switch_set(void); | |
217 | 162 |
241 | 163 static unsigned char calc_nextdecodepth(void); |
116 | 164 |
200 | 165 //---- Bank 4 parameters ----------------------------------------------------- |
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166 #ifndef UNIX |
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167 # pragma udata bank4=0x400 |
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168 #endif |
116 | 169 |
170 static float GF_low; | |
171 static float GF_high; | |
172 static float GF_delta; | |
192 | 173 static float locked_GF_step; // GF_delta / low_depth |
174 | |
175 static unsigned char temp_depth_limit; | |
695 | 176 float low_depth; // Depth of deepest stop |
171 | 177 |
757 | 178 static unsigned char internal_deco_time [NUM_STOPS]; |
338 | 179 static unsigned char internal_deco_depth[NUM_STOPS]; |
757 | 180 static unsigned char internal_deco_gas [NUM_STOPS]; |
116 | 181 |
182 static float cns_vault; | |
697 | 183 static float low_depth_vault; |
339 | 184 static float pres_tissue_N2_vault[NUM_COMP]; |
185 static float pres_tissue_He_vault[NUM_COMP]; | |
116 | 186 |
163 | 187 //---- Bank 5 parameters ----------------------------------------------------- |
601
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188 #ifndef UNIX |
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189 # pragma udata bank5=0x500 |
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190 #endif |
163 | 191 |
167 | 192 static unsigned char ci; |
116 | 193 static float pres_respiration; |
194 static float pres_surface; | |
195 static float temp_deco; | |
236 | 196 static float ppN2; |
200 | 197 static float ppHe; |
116 | 198 static float temp_tissue; |
200 | 199 static float N2_ratio; // Breathed gas nitrogen ratio. |
200 static float He_ratio; // Breathed gas helium ratio. | |
201 static float var_N2_a; // Bühlmann a, for current N2 tissue. | |
202 static float var_N2_b; // Bühlmann b, for current N2 tissue. | |
203 static float var_He_a; // Bühlmann a, for current He tissue. | |
204 static float var_He_b; // Bühlmann b, for current He tissue. | |
205 static float var_N2_e; // Exposition, for current N2 tissue. | |
206 static float var_He_e; // Exposition, for current He tissue. | |
509 | 207 static float var_N2_ht; // Half-time for current N2 tissue. |
208 static float var_He_ht; // Half-time for current N2 tissue. | |
116 | 209 |
338 | 210 static float pres_diluent; // new in v.101 |
211 static float const_ppO2; // new in v.101 | |
116 | 212 |
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213 static unsigned char sim_gas_last_depth; // Depth of last used gas, to detected a gas switch. |
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214 static unsigned char sim_gas_last_used; // Number of last used gas, to detected a gas switch. |
203 | 215 static unsigned short sim_dive_mins; // Simulated dive time. |
200 | 216 static float calc_N2_ratio; // Simulated (switched) nitrogen ratio. |
217 static float calc_He_ratio; // Simulated (switched) helium ratio. | |
218 static float CNS_fraction; // new in v.101 | |
219 static float float_saturation_multiplier; // new in v.101 | |
220 static float float_desaturation_multiplier; // new in v.101 | |
338 | 221 static float float_deco_distance; // new in v.101 |
167 | 222 |
338 | 223 static unsigned char deco_gas_change[NUM_GAS]; // new in v.109 |
167 | 224 |
757 | 225 // Simulation context: used to predict ascent. |
226 unsigned char sim_lead_tissue_no; // Leading compatiment number. | |
227 float sim_lead_tissue_limit; // Buhlmann tolerated pressure. | |
228 | |
229 // Real context: what we are doing now. | |
230 static float calc_lead_tissue_limit; // | |
231 | |
163 | 232 //---- Bank 6 parameters ----------------------------------------------------- |
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233 #ifndef UNIX |
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234 # pragma udata bank6=0x600 |
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235 #endif |
116 | 236 |
339 | 237 float pres_tissue_N2[NUM_COMP]; |
238 float pres_tissue_He[NUM_COMP]; | |
509 | 239 float sim_pres_tissue_N2[NUM_COMP]; // 16 floats = 64 bytes. |
240 float sim_pres_tissue_He[NUM_COMP]; // 16 floats = 64 bytes. | |
116 | 241 |
163 | 242 //---- Bank 7 parameters ----------------------------------------------------- |
601
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243 #ifndef UNIX |
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244 # pragma udata bank7=0x700 |
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245 #endif |
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246 |
509 | 247 // EMPTY ... |
116 | 248 |
163 | 249 //---- Bank 8 parameters ----------------------------------------------------- |
601
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250 #ifndef UNIX |
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251 # pragma udata bank8=0x800 |
163 | 252 |
601
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253 static char md_pi_subst[256]; |
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254 # define C_STACK md_pi_subst // Overlay C-code data stack here, too. |
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255 |
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256 #endif |
116 | 257 |
163 | 258 //---- Bank 9 parameters ----------------------------------------------------- |
601
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259 #ifndef UNIX |
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260 # pragma udata bank9=0x900 |
116 | 261 |
601
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262 static char md_state[48]; // DONT MOVE : has to be at the beginning of bank 9 for the asm code!!! |
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263 #endif |
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264 |
116 | 265 |
167 | 266 ////////////////////////////////////////////////////////////////////////////// |
267 ////////////////////////////////////////////////////////////////////////////// | |
268 ///////////////////////////// THE LOOKUP TABLES ////////////////////////////// | |
269 ////////////////////////////////////////////////////////////////////////////// | |
270 ////////////////////////////////////////////////////////////////////////////// | |
271 // | |
272 // End of PROM code is 17F00, So push tables on PROM top... | |
273 // | |
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274 #ifndef UNIX |
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275 # pragma romdata buhlmann_tables = 0x017B00 // Needs to be in UPPER bank. |
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276 #endif |
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277 |
167 | 278 #include "p2_tables.romdata" // new table for deco_main_v.101 (var_N2_a modified) |
116 | 279 |
167 | 280 // Magic table to compute the MD2 HASH |
281 // | |
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282 #ifndef UNIX |
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283 # pragma romdata hash_tables = 0x017E00 // Address fixed by ASM access... |
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284 rom const rom unsigned short md_pi[] = |
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285 { |
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286 0x292E, 0x43C9, 0xA2D8, 0x7C01, 0x3D36, 0x54A1, 0xECF0, 0x0613 |
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287 , 0x62A7, 0x05F3, 0xC0C7, 0x738C, 0x9893, 0x2BD9, 0xBC4C, 0x82CA |
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288 , 0x1E9B, 0x573C, 0xFDD4, 0xE016, 0x6742, 0x6F18, 0x8A17, 0xE512 |
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289 , 0xBE4E, 0xC4D6, 0xDA9E, 0xDE49, 0xA0FB, 0xF58E, 0xBB2F, 0xEE7A |
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290 , 0xA968, 0x7991, 0x15B2, 0x073F, 0x94C2, 0x1089, 0x0B22, 0x5F21 |
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291 , 0x807F, 0x5D9A, 0x5A90, 0x3227, 0x353E, 0xCCE7, 0xBFF7, 0x9703 |
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292 , 0xFF19, 0x30B3, 0x48A5, 0xB5D1, 0xD75E, 0x922A, 0xAC56, 0xAAC6 |
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293 , 0x4FB8, 0x38D2, 0x96A4, 0x7DB6, 0x76FC, 0x6BE2, 0x9C74, 0x04F1 |
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294 , 0x459D, 0x7059, 0x6471, 0x8720, 0x865B, 0xCF65, 0xE62D, 0xA802 |
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295 , 0x1B60, 0x25AD, 0xAEB0, 0xB9F6, 0x1C46, 0x6169, 0x3440, 0x7E0F |
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296 , 0x5547, 0xA323, 0xDD51, 0xAF3A, 0xC35C, 0xF9CE, 0xBAC5, 0xEA26 |
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297 , 0x2C53, 0x0D6E, 0x8528, 0x8409, 0xD3DF, 0xCDF4, 0x4181, 0x4D52 |
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298 , 0x6ADC, 0x37C8, 0x6CC1, 0xABFA, 0x24E1, 0x7B08, 0x0CBD, 0xB14A |
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299 , 0x7888, 0x958B, 0xE363, 0xE86D, 0xE9CB, 0xD5FE, 0x3B00, 0x1D39 |
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300 , 0xF2EF, 0xB70E, 0x6658, 0xD0E4, 0xA677, 0x72F8, 0xEB75, 0x4B0A |
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301 , 0x3144, 0x50B4, 0x8FED, 0x1F1A, 0xDB99, 0x8D33, 0x9F11, 0x8314 |
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302 }; |
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303 #endif |
116 | 304 |
167 | 305 ////////////////////////////////////////////////////////////////////////////// |
306 ////////////////////////////////////////////////////////////////////////////// | |
307 ////////////////////////////// THE SUBROUTINES /////////////////////////////// | |
308 ////////////////////////////////////////////////////////////////////////////// | |
309 ////////////////////////////////////////////////////////////////////////////// | |
310 // | |
116 | 311 // all new in v.102 |
312 // moved from 0x0D000 to 0x0C000 in v.108 | |
601
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313 #ifndef UNIX |
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314 # pragma code p2_deco = 0x0C000 |
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315 #endif |
116 | 316 |
167 | 317 ////////////////////////////////////////////////////////////////////////////// |
318 ////////////////////////////////////////////////////////////////////////////// | |
319 /////////////////////// U T I L I T I E S ///////////////////////////////// | |
320 ////////////////////////////////////////////////////////////////////////////// | |
321 ////////////////////////////////////////////////////////////////////////////// | |
322 | |
235 | 323 ////////////////////////////////////////////////////////////////////////////// |
257
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324 // Bump to blue-screen when an assert is wrong |
235 | 325 #ifdef __DEBUG |
326 void assert_failed(PARAMETER short int line) | |
327 { | |
681 | 328 extern void DISP_resetdebugger(void); |
235 | 329 extern unsigned short temp10; |
330 | |
257
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331 temp10 = line; // Show source line number as stack depth. |
681 | 332 DISP_resetdebugger(); |
235 | 333 } |
334 #endif | |
257
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335 |
235 | 336 ////////////////////////////////////////////////////////////////////////////// |
337 // When calling C code from ASM context, the data stack pointer and | |
338 // frames should be reset. Bank8 is used by stack, when not doing hashing. | |
339 | |
340 #ifdef CROSS_COMPILE | |
341 # define RESET_C_STACK | |
342 #else | |
343 # ifdef __DEBUG | |
344 # define RESET_C_STACK fillDataStack(); | |
345 void fillDataStack(void) | |
346 { | |
347 _asm | |
348 LFSR 1,C_STACK | |
349 MOVLW 0xCC | |
350 loop: MOVWF POSTINC1,0 | |
351 TSTFSZ FSR1L,0 | |
352 BRA loop | |
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353 |
235 | 354 LFSR 1,C_STACK |
355 LFSR 2,C_STACK | |
356 _endasm | |
357 } | |
358 # else | |
359 # define RESET_C_STACK \ | |
360 _asm \ | |
361 LFSR 1, C_STACK \ | |
362 LFSR 2, C_STACK \ | |
363 _endasm | |
364 # endif | |
365 #endif | |
366 | |
367 ////////////////////////////////////////////////////////////////////////////// | |
257
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368 // Read CF values from the C code. |
235 | 369 |
488 | 370 #ifdef CROSS_COMPILE |
371 // Full description of the OSTC EEPROM map, including CF values. | |
372 # include "OSTC_eeprom.h" | |
373 #endif | |
374 | |
203 | 375 static short read_custom_function(PARAMETER unsigned char cf) |
167 | 376 { |
184 | 377 #ifdef CROSS_COMPILE |
743 | 378 return READ_CF_MACRO(cf); |
184 | 379 #else |
167 | 380 extern unsigned char hi, lo; |
381 extern void getcustom15(); | |
382 _asm | |
383 movff cf,WREG | |
384 call getcustom15,0 | |
385 movff lo,PRODL | |
386 movff hi,PRODH | |
387 _endasm | |
184 | 388 #endif |
167 | 389 } |
390 | |
391 ////////////////////////////////////////////////////////////////////////////// | |
257
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392 // Fast subroutine to read RTC timer 3. |
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393 // Note: result is in 1/32 of msecs. |
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394 static unsigned short tmr3(void) |
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395 { |
261 | 396 #ifndef CROSS_COMPILE |
257
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397 _asm |
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398 movff 0xfb2,PRODL // TMR3L |
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399 movff 0xfb3,PRODH // TMR3H |
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400 _endasm // result in PRODH:PRODL. |
261 | 401 #else |
402 return 0; | |
403 #endif | |
257
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404 } |
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405 |
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406 ////////////////////////////////////////////////////////////////////////////// |
258 | 407 // read buhlmann tables A and B for compatriment ci |
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408 // |
258 | 409 static void read_buhlmann_coefficients(void) |
165 | 410 { |
184 | 411 #ifndef CROSS_COMPILE |
167 | 412 // Note: we don't use far rom pointer, because the |
338 | 413 // 24 bits is too complex, hence we have to set |
167 | 414 // the UPPER page ourself... |
415 // --> Set zero if tables are moved to lower pages ! | |
416 _asm | |
417 movlw 1 | |
418 movwf TBLPTRU,0 | |
419 _endasm | |
184 | 420 #endif |
258 | 421 |
564 | 422 assert( ci < NUM_COMP ); |
338 | 423 |
424 // Use an interleaved array (AoS) to access coefficients with a | |
425 // single addressing. | |
426 { | |
427 overlay rom const float* ptr = &buhlmann_ab[4*ci]; | |
428 var_N2_a = *ptr++; | |
429 var_N2_b = *ptr++; | |
430 var_He_a = *ptr++; | |
431 var_He_b = *ptr++; | |
432 } | |
258 | 433 } |
434 | |
435 ////////////////////////////////////////////////////////////////////////////// | |
436 // read buhlmann tables for compatriment ci | |
437 // If period == 0 : 2sec interval | |
438 // 1 : 1 min interval | |
439 // 2 : 10 min interval. | |
440 static void read_buhlmann_times(PARAMETER char period) | |
441 { | |
442 #ifndef CROSS_COMPILE | |
443 // Note: we don't use far rom pointer, because the | |
444 // 24 bits is to complex, hence we have to set | |
445 // the UPPER page ourself... | |
446 // --> Set zero if tables are moved to lower pages ! | |
447 _asm | |
448 movlw 1 | |
449 movwf TBLPTRU,0 | |
450 _endasm | |
451 #endif | |
338 | 452 |
564 | 453 assert( ci < NUM_COMP ); |
258 | 454 |
165 | 455 // Integration intervals. |
167 | 456 switch(period) |
165 | 457 { |
458 case 0: //---- 2 sec ----------------------------------------------------- | |
338 | 459 { |
460 overlay rom const float* ptr = &e2secs[2*ci]; | |
461 var_N2_e = *ptr++; | |
462 var_He_e = *ptr++; | |
463 } | |
165 | 464 break; |
465 | |
466 case 1: //---- 1 min ----------------------------------------------------- | |
338 | 467 { |
468 overlay rom const float* ptr = &e1min[2*ci]; | |
469 var_N2_e = *ptr++; | |
470 var_He_e = *ptr++; | |
471 } | |
165 | 472 break; |
473 | |
474 case 2: //---- 10 min ---------------------------------------------------- | |
338 | 475 { |
476 overlay rom const float* ptr = &e10min[2*ci]; | |
477 var_N2_e = *ptr++; | |
478 var_He_e = *ptr++; | |
479 } | |
165 | 480 break; |
197 | 481 |
482 default: | |
527 | 483 assert(0); // Never go there... |
165 | 484 } |
485 } | |
486 | |
487 ////////////////////////////////////////////////////////////////////////////// | |
509 | 488 // read buhlmann tables for compatriment ci |
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489 // |
509 | 490 static void read_buhlmann_ht(void) |
491 { | |
492 | |
493 #ifndef CROSS_COMPILE | |
494 // Note: we don't use far rom pointer, because the | |
495 // 24 bits is to complex, hence we have to set | |
496 // the UPPER page ourself... | |
497 // --> Set zero if tables are moved to lower pages ! | |
498 _asm | |
499 movlw 1 | |
500 movwf TBLPTRU,0 | |
501 _endasm | |
502 #endif | |
503 | |
564 | 504 assert( ci < NUM_COMP ); |
509 | 505 { |
506 overlay rom const float* ptr = &buhlmann_ht[2*ci]; | |
507 var_N2_ht = *ptr++; | |
508 var_He_ht = *ptr++; | |
711
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509 } |
509 | 510 |
511 assert( 4.0 <= var_N2_ht && var_N2_ht <= 635.0 ); | |
512 assert( 1.5099 <= var_He_ht && var_He_ht <= 240.03 ); | |
513 } | |
514 | |
515 ////////////////////////////////////////////////////////////////////////////// | |
340
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BUGFIX save negativ temperatures in logbook (bbbug #6)
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516 // calc_nextdecodepth |
165 | 517 // |
116 | 518 // new in v.102 |
165 | 519 // |
116 | 520 // INPUT, changing during dive: |
509 | 521 // temp_deco |
192 | 522 // low_depth |
167 | 523 // |
116 | 524 // INPUT, fixed during dive: |
167 | 525 // pres_surface |
526 // GF_delta | |
527 // GF_high | |
528 // GF_low | |
171 | 529 // char_I_depth_last_deco |
167 | 530 // float_deco_distance |
531 // | |
241 | 532 // RETURN TRUE iff a stop is needed. |
533 // | |
116 | 534 // OUTPUT |
171 | 535 // locked_GF_step |
167 | 536 // temp_depth_limt |
192 | 537 // low_depth |
167 | 538 // |
241 | 539 static unsigned char calc_nextdecodepth(void) |
167 | 540 { |
241 | 541 //--- Max ascent speed --------------------------------------------------- |
542 // Recompute leading gas limit, at current depth: | |
317 | 543 overlay float depth = (temp_deco - pres_surface) * BAR_TO_METER; |
241 | 544 |
545 // At most, ascent 1 minute, at 10m/min == 10.0 m. | |
302 | 546 overlay float min_depth = (depth > 10.0) ? (depth - 10.0) : 0.0; |
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547 |
241 | 548 // Do we need to stop at current depth ? |
549 overlay unsigned char need_stop = 0; | |
550 | |
551 assert( depth >= -0.2 ); // Allow for 200mbar of weather change. | |
552 | |
212 | 553 //---- ZH-L16 + GRADIENT FACTOR model ------------------------------------ |
711
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554 if( char_I_deco_model != 0 ) |
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555 { |
562 | 556 overlay unsigned char first_stop = 0; |
557 overlay float p; | |
558 | |
567 | 559 sim_limit( GF_low ); |
562 | 560 p = sim_lead_tissue_limit - pres_surface; |
695 | 561 p *= BAR_TO_METER; |
562 | 562 if( p <= 0.0f ) |
563 goto no_deco_stop; // We can surface directly... | |
512
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564 |
695 | 565 // Store the deepest point needing a deco stop as the LOW reference for GF. |
566 // NOTE: following stops will be validated using this LOW-HIGH gf scale, | |
567 // so if we want to keep coherency, we should not validate this stop | |
568 // yet, but apply the search to it, as for all the following stops afterward. | |
569 if( p > low_depth ) | |
570 { | |
571 low_depth = p; | |
572 locked_GF_step = GF_delta / low_depth; | |
573 } | |
574 | |
562 | 575 if( p < min_depth ) |
576 goto no_deco_stop; // First stop is higher than 1' ascent. | |
275
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577 |
695 | 578 // Round to multiple of 3m. |
579 first_stop = 3 * (short)(0.9995f + p*0.333333f); | |
562 | 580 assert( first_stop < 128 ); |
581 | |
582 // Apply correction for the shallowest stop. | |
583 if( first_stop == 3 ) // new in v104 | |
584 first_stop = char_I_depth_last_deco; // Use last 3m..6m instead. | |
171 | 585 |
562 | 586 // We have a stop candidate. |
587 // But maybe ascending to the next stop will diminish the constraint, | |
588 // because the GF might decrease more than the preassure gradient... | |
589 while(first_stop > 0) | |
590 { | |
591 overlay unsigned char next_stop; // Next depth (0..90m) | |
171 | 592 |
562 | 593 // Check max speed, or reaching surface. |
594 if( first_stop <= min_depth ) | |
595 goto no_deco_stop; | |
171 | 596 |
562 | 597 if( first_stop <= char_I_depth_last_deco ) // new in v104 |
598 next_stop = 0; | |
599 else if( first_stop == 6 ) | |
600 next_stop = char_I_depth_last_deco; | |
601 else | |
602 next_stop = first_stop - 3; // Index of next (upper) stop. | |
711
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603 |
562 | 604 // Total preassure at the new stop candidate: |
695 | 605 p = next_stop * METER_TO_BAR |
711
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606 + pres_surface; |
167 | 607 |
695 | 608 // Recompute limit for this new stop: |
609 if( !low_depth || next_stop > low_depth ) | |
610 sim_limit( GF_low ); | |
611 else | |
612 sim_limit( GF_high - next_stop * locked_GF_step ); | |
192 | 613 |
695 | 614 // Check upper limit (lowest ambiant pressure tolerated): |
615 if( sim_lead_tissue_limit >= p ) | |
616 goto deco_stop_found; // Ascent to next_stop forbiden. | |
562 | 617 |
618 // Else, validate that stop and loop... | |
619 first_stop = next_stop; | |
620 } | |
171 | 621 |
562 | 622 no_deco_stop: |
711
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623 temp_depth_limit = min_depth; |
562 | 624 goto done; |
212 | 625 |
695 | 626 deco_stop_found: |
562 | 627 // next stop is the last validated depth found, aka first_stop |
628 need_stop = 1; // Hit. | |
629 temp_depth_limit = first_stop; // Stop depth, in meter. | |
630 | |
631 done: | |
632 ; | |
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633 } |
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634 else //---- ZH-L16 model ------------------------------------------------- |
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635 { |
192 | 636 overlay float pres_gradient; |
637 | |
711
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638 // Original model |
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639 // optimized in v.101 |
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640 // char_I_depth_last_deco included in v.101 |
116 | 641 |
192 | 642 // Compute sim_lead_tissue_limit too, but just once. |
643 sim_limit(1.0); | |
644 | |
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645 pres_gradient = sim_lead_tissue_limit - pres_surface; |
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646 if (pres_gradient >= 0) |
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647 { |
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648 pres_gradient *= BAR_TO_METER/3; // Bar --> stop number; |
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649 temp_depth_limit = 3 * (short) (pres_gradient + 0.99); // --> metre : depth for deco |
241 | 650 need_stop = 1; // Hit. |
651 | |
652 // Implement last stop at 4m/5m/6m... | |
711
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653 if( temp_depth_limit == 3 ) |
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654 temp_depth_limit = char_I_depth_last_deco; |
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655 } |
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656 else |
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657 temp_depth_limit = 0; |
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|
658 } |
212 | 659 |
217 | 660 //---- Check gas change -------------------------------------------------- |
241 | 661 need_stop |= gas_switch_deepest(); // Update temp_depth_limit if there is a change, |
662 | |
663 return need_stop; | |
167 | 664 } |
116 | 665 |
167 | 666 ////////////////////////////////////////////////////////////////////////////// |
169
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667 // copy_deco_table |
167 | 668 // |
169
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669 // Buffer the stops, once computed, so we can continue to display them |
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670 // while computing the next set. |
167 | 671 // |
169
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672 static void copy_deco_table(void) |
116 | 673 { |
169
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674 // Copy depth of the first (deepest) stop, because when reversing |
711
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675 // order, it will be hard to find... |
766
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676 char_O_first_deco_depth = internal_deco_depth[0]; |
169
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677 char_O_first_deco_time = internal_deco_time [0]; |
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678 |
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679 if( read_custom_function(54) & 1 ) //---- Should we reverse table ? ------ |
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680 { |
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681 overlay unsigned char x, y; |
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682 |
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683 //---- First: search the first non-null depth |
339 | 684 for(x=(NUM_STOPS-1); x != 0; --x) |
169
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685 if( internal_deco_depth[x] != 0 ) break; |
116 | 686 |
169
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687 //---- Second: copy to output table (in reverse order) |
338 | 688 for(y=0; y<NUM_STOPS; y++, --x) |
169
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689 { |
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690 char_O_deco_depth[y] = internal_deco_depth[x]; |
633
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691 char_O_deco_time_for_log[y] = internal_deco_time [x]; |
169
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692 char_O_deco_time [y] = internal_deco_time [x]; |
757 | 693 char_O_deco_gas [y] = internal_deco_gas [x]; |
169
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694 |
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695 // Stop only once the last transfer is done. |
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696 if( x == 0 ) break; |
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697 } |
116 | 698 |
169
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699 //---- Third: fill table end with null |
339 | 700 for(y++; y<NUM_STOPS; y++) |
169
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701 { |
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702 char_O_deco_time [y] = 0; |
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703 char_O_deco_depth[y] = 0; |
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704 char_O_deco_time_for_log[y] = 0; |
757 | 705 char_O_deco_gas [y] = 0; |
169
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706 } |
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707 } |
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708 else //---- Straight copy ------------------------------------------------ |
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709 { |
630
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710 overlay unsigned char x, y; |
167 | 711 |
339 | 712 for(x=0; x<NUM_STOPS; x++) |
169
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713 { |
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714 char_O_deco_depth[x] = internal_deco_depth[x]; |
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715 char_O_deco_time [x] = internal_deco_time [x]; |
757 | 716 char_O_deco_gas [x] = internal_deco_gas [x]; |
169
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717 } |
630
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718 |
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719 //Now fill the char_O_deco_time_for_log array |
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720 //---- First: search the first non-null depth |
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721 for(x=(NUM_STOPS-1); x != 0; --x) |
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722 if( internal_deco_depth[x] != 0 ) break; |
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723 |
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724 //---- Second: copy to output table (in reverse order) |
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725 for(y=0; y<NUM_STOPS; y++, --x) |
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726 { |
633
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727 char_O_deco_time_for_log[y] = internal_deco_time [x]; |
630
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728 |
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729 // Stop only once the last transfer is done. |
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730 if( x == 0 ) break; |
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731 } |
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732 |
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733 //---- Third: fill table end with null |
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734 for(y++; y<NUM_STOPS; y++) |
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735 { |
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736 char_O_deco_time_for_log [y] = 0; |
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737 } |
169
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738 } |
167 | 739 } |
116 | 740 |
167 | 741 ////////////////////////////////////////////////////////////////////////////// |
116 | 742 // temp_tissue_safety // |
167 | 743 // |
116 | 744 // outsourced in v.102 |
167 | 745 // |
746 // Apply safety factors for brand ZH-L16 model. | |
747 // | |
748 static void temp_tissue_safety(void) | |
116 | 749 { |
197 | 750 assert( 0.0 < float_desaturation_multiplier && float_desaturation_multiplier <= 1.0 ); |
751 assert( 1.0 <= float_saturation_multiplier && float_saturation_multiplier <= 2.0 ); | |
752 | |
711
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753 if( char_I_deco_model == 0 ) |
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754 { |
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755 if( temp_tissue < 0.0 ) |
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756 temp_tissue *= float_desaturation_multiplier; |
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757 else |
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758 temp_tissue *= float_saturation_multiplier; |
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759 } |
167 | 760 } |
116 | 761 |
167 | 762 ////////////////////////////////////////////////////////////////////////////// |
763 ////////////////////////////////////////////////////////////////////////////// | |
116 | 764 // ** THE JUMP-IN CODE ** |
765 // ** for the asm code ** | |
167 | 766 ////////////////////////////////////////////////////////////////////////////// |
767 ////////////////////////////////////////////////////////////////////////////// | |
122
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768 |
167 | 769 ////////////////////////////////////////////////////////////////////////////// |
169
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770 // Called every 2 seconds during diving. |
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771 // update tissues every time. |
184 | 772 // |
169
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773 // Every 6 seconds (or slower when TTS > 16): |
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774 // - update deco table (char_O_deco_time/depth) with new values. |
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775 // - update ascent time, |
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776 // - set status to zero (so we can check there is new results). |
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777 // |
116 | 778 void deco_calc_hauptroutine(void) |
779 { | |
122
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780 RESET_C_STACK |
116 | 781 calc_hauptroutine(); |
782 int_O_desaturation_time = 65535; | |
783 } | |
784 | |
167 | 785 ////////////////////////////////////////////////////////////////////////////// |
184 | 786 // Reset decompression model: |
787 // + Set all tissues to equilibrium with Air at ambient pressure. | |
788 // + Reset last stop to 0m | |
789 // + Reset all model output. | |
116 | 790 void deco_clear_tissue(void) |
791 { | |
122
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792 RESET_C_STACK |
116 | 793 clear_tissue(); |
794 } | |
795 | |
167 | 796 ////////////////////////////////////////////////////////////////////////////// |
278 | 797 // Called every 1 min during decoplanning. |
798 // Update tissues for 1 min. | |
799 // | |
800 void deco_calc_tissue(void) | |
801 { | |
802 RESET_C_STACK | |
803 calc_hauptroutine_update_tissues(); | |
711
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804 } |
278 | 805 |
806 ////////////////////////////////////////////////////////////////////////////// | |
167 | 807 |
116 | 808 void deco_calc_wo_deco_step_1_min(void) |
809 { | |
122
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810 RESET_C_STACK |
116 | 811 calc_wo_deco_step_1_min(); |
812 deco_calc_desaturation_time(); | |
813 } | |
814 | |
167 | 815 ////////////////////////////////////////////////////////////////////////////// |
816 | |
368 | 817 void deco_calc_dive_interval(void) |
818 { | |
819 RESET_C_STACK | |
820 calc_dive_interval(); | |
821 } | |
822 | |
241 | 823 ////////////////////////////////////////////////////////////////////////////// |
824 // Find current gas in the list (if any). | |
711
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825 // |
513 | 826 // Input: char_I_current_gas = 1..6 |
241 | 827 // |
513 | 828 // Output: sim_gas_last_depth = 0..5, temp_depth_limit. |
241 | 829 // |
830 static void gas_switch_find_current(void) | |
831 { | |
513 | 832 assert( 0 < char_I_current_gas && char_I_current_gas <= (NUM_GAS+1) ); |
247
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833 |
388 | 834 if( char_I_current_gas <= NUM_GAS ) // Gas1..Gas5 |
353
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835 { |
388 | 836 sim_gas_last_used = char_I_current_gas; |
837 | |
838 // Note: if current is first gas, we must find it, but not set | |
839 // last depth change to surface. | |
840 if( char_I_deco_gas_change[sim_gas_last_used-1] ) | |
841 sim_gas_last_depth = char_I_deco_gas_change[sim_gas_last_used-1]; | |
241 | 842 } |
388 | 843 else |
844 sim_gas_last_used = 0; // Gas 6 = manual set | |
241 | 845 } |
846 | |
167 | 847 ////////////////////////////////////////////////////////////////////////////// |
217 | 848 // Find deepest available gas. |
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849 // |
241 | 850 // Input: temp_depth_limit, |
851 // deco_gas_change[] | |
766
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852 // sim_gas_depth_used, sim_dive_mins. |
212 | 853 // |
241 | 854 // RETURNS TRUE if a stop is needed for gas switch. |
855 // | |
766
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856 // Output: temp_depth_limit, sim_gas_depth_used IFF the is a switch. |
212 | 857 // |
766
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858 // NOTE: might be called from bottom (when sim_gas_depth_used |
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859 // is null), or during the ascent to make sure we are not passing a |
241 | 860 // stop (in which case both can be already set). |
861 // | |
862 static unsigned char gas_switch_deepest(void) | |
201 | 863 { |
241 | 864 overlay unsigned char switch_deco = 0, switch_last = 0; |
201 | 865 |
866 if (char_I_const_ppO2 == 0) | |
867 { | |
225 | 868 overlay unsigned char j; |
869 | |
241 | 870 // Loop over all enabled gas, to find the deepest one, |
340
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BUGFIX save negativ temperatures in logbook (bbbug #6)
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871 // above last used gas, but below temp_depth_limit. |
338 | 872 for(j=0; j<NUM_GAS; ++j) |
225 | 873 { |
241 | 874 // Gas not (yet) allowed ? Skip ! |
875 if( temp_depth_limit > deco_gas_change[j] ) | |
876 continue; | |
877 | |
353
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878 // Gas deeper (or equal) than the current one ? Skip ! |
241 | 879 if( sim_gas_last_depth && deco_gas_change[j] >= sim_gas_last_depth ) |
880 continue; | |
881 | |
882 // First, or deeper ? | |
247
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883 if( switch_deco < deco_gas_change[j] ) |
241 | 884 { |
885 switch_deco = deco_gas_change[j]; | |
388 | 886 switch_last = j+1; // 1..5 |
241 | 887 } |
225 | 888 } |
201 | 889 } |
890 | |
203 | 891 // If there is a better gas available |
241 | 892 if( switch_deco ) |
201 | 893 { |
241 | 894 assert( !sim_gas_last_depth || sim_gas_last_depth > switch_deco ); |
201 | 895 |
241 | 896 sim_gas_last_depth = switch_deco; |
897 sim_gas_last_used = switch_last; | |
755 | 898 return 0; |
217 | 899 } |
241 | 900 return 0; |
217 | 901 } |
902 | |
903 ////////////////////////////////////////////////////////////////////////////// | |
904 // Calculate gas switches | |
711
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|
905 // |
217 | 906 // |
907 // Input: N2_ratio, He_ratio. | |
908 // sim_gas_last_used | |
909 // | |
910 // Output: calc_N2_ratio, calc_He_ratio | |
911 // | |
241 | 912 static void gas_switch_set(void) |
217 | 913 { |
564 | 914 assert( sim_gas_last_used <= NUM_GAS ); |
217 | 915 |
388 | 916 if( sim_gas_last_used == 0 ) // Gas6 = manualy set gas. |
224 | 917 { |
918 calc_N2_ratio = N2_ratio; | |
711
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|
919 calc_He_ratio = He_ratio; |
224 | 920 } |
921 else | |
922 { | |
923 calc_N2_ratio = char_I_deco_N2_ratio[sim_gas_last_used-1] * 0.01; | |
711
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|
924 calc_He_ratio = char_I_deco_He_ratio[sim_gas_last_used-1] * 0.01; |
217 | 925 } |
201 | 926 |
927 assert( 0.0 <= calc_N2_ratio && calc_N2_ratio <= 0.95 ); | |
782
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928 assert( 0.0 <= calc_He_ratio && calc_He_ratio <= 1.00 ); |
201 | 929 assert( (calc_N2_ratio + calc_He_ratio) <= 1.00 ); |
930 } | |
931 | |
932 ////////////////////////////////////////////////////////////////////////////// | |
933 // | |
212 | 934 // Input: calc_N2_ratio, calc_He_ratio : simulated gas mix. |
509 | 935 // temp_deco : simulated respiration pressure |
276 | 936 // float_deco_distance : security factor. |
310
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937 // Water-vapor pressure inside limbs (ppWater). |
212 | 938 // |
236 | 939 // Output: ppN2, ppHe. |
212 | 940 // |
941 static void sim_alveolar_presures(void) | |
201 | 942 { |
212 | 943 overlay float deco_diluent = temp_deco; // new in v.101 |
944 | |
276 | 945 // Take deco offset into account, but not at surface. |
946 // Note: this should be done on ambiant pressure, hence before | |
947 // computing the diluant partial pressure... | |
948 if( deco_diluent > pres_surface ) | |
949 deco_diluent += float_deco_distance; | |
950 | |
212 | 951 //---- CCR mode : deco gas switch ? -------------------------------------- |
276 | 952 if( char_I_const_ppO2 != 0 ) |
711
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953 { |
276 | 954 // In CCR mode, use calc_XX_ratio instead of XX_ratio. |
955 // Note: PPO2 and ratios are known outside the lumbs, so there is no | |
310
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956 // ppWater in the equations below: |
321 | 957 deco_diluent -= const_ppO2; |
276 | 958 deco_diluent /= calc_N2_ratio + calc_He_ratio; |
212 | 959 |
960 if (deco_diluent > temp_deco) | |
711
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961 deco_diluent = temp_deco; |
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|
962 } |
201 | 963 |
310
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diff
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964 if( deco_diluent > ppWater ) |
201 | 965 { |
310
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966 ppN2 = calc_N2_ratio * (deco_diluent - ppWater); |
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967 ppHe = calc_He_ratio * (deco_diluent - ppWater); |
201 | 968 } |
969 else | |
970 { | |
236 | 971 ppN2 = 0.0; |
201 | 972 ppHe = 0.0; |
973 } | |
236 | 974 assert( 0.0 <= ppN2 && ppN2 < 14.0 ); |
201 | 975 assert( 0.0 <= ppHe && ppHe < 14.0 ); |
976 } | |
977 | |
978 ////////////////////////////////////////////////////////////////////////////// | |
167 | 979 // clear_tissue |
980 // | |
165 | 981 // optimized in v.101 (var_N2_a) |
167 | 982 // |
983 // preload tissues with standard pressure for the given ambient pressure. | |
984 // Note: fixed N2_ratio for standard air. | |
201 | 985 // |
167 | 986 static void clear_tissue(void) |
116 | 987 { |
511
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diff
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|
988 overlay float p; |
116 | 989 |
167 | 990 // Kludge: the 0.0002 of 0.7902 are missing with standard air. |
991 N2_ratio = 0.7902; | |
212 | 992 pres_respiration = int_I_pres_respiration * 0.001; |
711
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993 |
511
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994 p = N2_ratio * (pres_respiration - ppWater); |
338 | 995 for(ci=0; ci<NUM_COMP; ci++) |
126 | 996 { |
511
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997 // cycle through the 16 Bühlmann N2 tissues |
339 | 998 pres_tissue_N2[ci] = p; |
197 | 999 |
1000 // cycle through the 16 Bühlmann tissues for Helium | |
339 | 1001 pres_tissue_He[ci] = 0.0; |
511
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1002 } |
116 | 1003 |
169
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1004 clear_deco_table(); |
126 | 1005 char_O_deco_status = 0; |
1006 char_O_nullzeit = 0; | |
168 | 1007 int_O_ascenttime = 0; |
126 | 1008 char_O_gradient_factor = 0; |
1009 char_O_relative_gradient_GF = 0; | |
258 | 1010 |
1011 calc_lead_tissue_limit = 0.0; | |
1012 char_O_gtissue_no = 0; | |
167 | 1013 } |
116 | 1014 |
167 | 1015 ////////////////////////////////////////////////////////////////////////////// |
1016 // calc_hauptroutine | |
1017 // | |
1018 // this is the major code in dive mode calculates: | |
116 | 1019 // the tissues, |
167 | 1020 // the bottom time, |
1021 // and simulates the ascend with all deco stops. | |
171 | 1022 // |
1023 // The deco_state sequence is : | |
1024 // 3 (at surface) | |
1025 // +---> 0 : calc nullzeit | |
1026 // | 2 : simulate ascent to first stop (at 10m/min, less that 16x 1min simu) | |
1027 // | +-> 1 : simulate up to 16min of stops. | |
1028 // | +------< not finished | |
1029 // +--------< finish | |
1030 // | |
312
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1031 // Added steps 6,5 for @+5 calculation: |
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1032 // 6 = ascent to first stop (same as 2), except continue to 7 |
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1033 // 7 = same as 1, except loop to 7. |
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1034 // |
167 | 1035 static void calc_hauptroutine(void) |
116 | 1036 { |
711
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1037 static unsigned char backup_gas_used = 0; |
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1038 static unsigned char backup_gas_depth = 0; |
186 | 1039 |
711
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|
1040 calc_hauptroutine_data_input(); |
116 | 1041 |
711
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1042 calc_hauptroutine_update_tissues(); |
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1043 calc_gradient_factor(); |
116 | 1044 |
711
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parents:
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|
1045 // toggle between calculation for nullzeit (bottom time), |
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diff
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|
1046 // deco stops |
167 | 1047 // and more deco stops (continue) |
697 | 1048 switch( char_O_deco_status ) |
711
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1049 { |
186 | 1050 case 3: //---- At surface: start a new dive ------------------------------ |
711
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parents:
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1051 clear_deco_table(); |
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|
1052 copy_deco_table(); |
743 | 1053 int_O_ascenttime = 0; // Reset TTS. |
711
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1054 int_O_extra_ascenttime = 0; |
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1055 char_O_nullzeit = 0; // Reset bottom time. |
278 | 1056 char_O_deco_status = 0; // Calc bottom-time/nullzeit next iteration. |
201 | 1057 |
217 | 1058 // Values that should be reset just once for the full real dive. |
1059 // This is used to record the lowest stop for the whole dive, | |
1060 // Including ACCROSS all simulated ascent. | |
695 | 1061 low_depth = 0.0; |
567 | 1062 locked_GF_step = 0.0; |
217 | 1063 |
1064 // Reset gas switch history. | |
241 | 1065 backup_gas_used = sim_gas_last_used = 0; |
1066 backup_gas_depth = sim_gas_last_depth = 0; | |
203 | 1067 sim_dive_mins = 0; |
1068 break; | |
186 | 1069 |
167 | 1070 case 0: //---- bottom time ----------------------------------------------- |
312
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1071 default: |
509 | 1072 gas_switch_find_current(); // Lookup for current gas & time. |
1073 gas_switch_set(); // setup calc_ratio's | |
1074 | |
711
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JeanDo <jd.gascuel@free.fr>
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diff
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|
1075 calc_nullzeit(); |
534
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BUGFIX NDL deco blocking stops during ascent when less than 10' TTS.
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1076 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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|
1077 { |
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BUGFIX NDL deco blocking stops during ascent when less than 10' TTS.
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1078 char_O_deco_status = 0; // YES: recalc ndl next time. |
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1079 clear_deco_table(); // Also clear stops ! |
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changeset
|
1080 copy_deco_table(); |
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BUGFIX NDL deco blocking stops during ascent when less than 10' TTS.
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|
1081 char_O_deco_last_stop = 0; // And last stop (OSTC menu anim) |
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BUGFIX NDL deco blocking stops during ascent when less than 10' TTS.
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|
1082 } |
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BUGFIX NDL deco blocking stops during ascent when less than 10' TTS.
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|
1083 else |
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BUGFIX NDL deco blocking stops during ascent when less than 10' TTS.
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|
1084 char_O_deco_status = 2; // NO: calc ascent next time. |
711
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|
1085 break; |
186 | 1086 |
1087 case 2: //---- Simulate ascent to first stop ----------------------------- | |
312
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1088 case 6: // @+5min variation |
203 | 1089 // Check proposed gas at begin of ascent simulation |
247
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BUGFIX Count gas switch delay down during ascent (bug bb26)
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diff
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|
1090 sim_dive_mins = int_I_divemins; // Init current time. |
241 | 1091 |
711
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parents:
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diff
changeset
|
1092 gas_switch_find_current(); // Lookup for current gas & time. |
532 | 1093 gas_switch_set(); // setup calc_ratio's |
1094 | |
247
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1095 backup_gas_used = sim_gas_last_used; // And save for later simu steps. |
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1096 backup_gas_depth = sim_gas_last_depth; // And save for later simu steps. |
186 | 1097 |
711
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changeset
|
1098 sim_ascent_to_first_stop(); |
201 | 1099 |
312
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1100 // Calc stops next time (deco or gas switch). |
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1101 char_O_deco_status = 1 | ( char_O_deco_status & 4 ); |
711
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|
1102 break; |
169
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Merge decoplan display for both GF and Buhlmann models.
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168
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|
1103 |
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diff
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|
1104 case 1: //---- Simulate stops -------------------------------------------- |
312
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1105 case 5: // @+5 variation. |
711
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diff
changeset
|
1106 calc_hauptroutine_calc_deco(); |
186 | 1107 |
1108 // If simulation is finished, restore the GF low reference, so that | |
1109 // next ascent simulation is done from the current depth: | |
711
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changeset
|
1110 if( (char_O_deco_status & 3) == 0 ) |
f555590f1419
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diff
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|
1111 { |
241 | 1112 sim_gas_last_used = backup_gas_used; |
1113 sim_gas_last_depth = backup_gas_depth; | |
186 | 1114 } |
711
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changeset
|
1115 break; |
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|
1116 } |
167 | 1117 |
116 | 1118 } |
1119 | |
167 | 1120 ////////////////////////////////////////////////////////////////////////////// |
1121 // calc_hauptroutine_data_input | |
1122 // | |
1123 // Reset all C-code dive parameters from their ASM-code values. | |
1124 // Detect gas change condition. | |
1125 // | |
116 | 1126 void calc_hauptroutine_data_input(void) |
1127 { | |
203 | 1128 overlay short int_temp; |
511
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NEW NDL NDL faster/more precise simu (but no closed formula for trimix).
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parents:
509
diff
changeset
|
1129 overlay unsigned char g; |
711
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parents:
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diff
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|
1130 |
197 | 1131 pres_respiration = int_I_pres_respiration * 0.001; |
1132 pres_surface = int_I_pres_surface * 0.001; | |
1133 N2_ratio = char_I_N2_ratio * 0.01; | |
1134 He_ratio = char_I_He_ratio * 0.01; | |
1135 float_deco_distance = char_I_deco_distance * 0.01; // Get offset is in mbar. | |
116 | 1136 |
126 | 1137 // ____________________________________________________ |
1138 // | |
1139 // _____________ G A S _ C H A N G E S ________________ | |
1140 // ____________________________________________________ | |
711
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diff
changeset
|
1141 |
212 | 1142 // Keep a margin of 150mbar = 1.50m |
1143 int_temp = (int_I_pres_respiration - int_I_pres_surface) | |
1144 + MBAR_REACH_GASCHANGE_AUTO_CHANGE_OFF; | |
711
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diff
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|
1145 |
203 | 1146 // Gas are selectable if we did not pass the change depth by more than 1.50m: |
511
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NEW NDL NDL faster/more precise simu (but no closed formula for trimix).
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509
diff
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|
1147 for(g=0; g < NUM_GAS; ++g) |
126 | 1148 { |
511
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NEW NDL NDL faster/more precise simu (but no closed formula for trimix).
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509
diff
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|
1149 deco_gas_change[g] = 0; |
2a6293641d51
NEW NDL NDL faster/more precise simu (but no closed formula for trimix).
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diff
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|
1150 if(char_I_deco_gas_change[g]) |
2a6293641d51
NEW NDL NDL faster/more precise simu (but no closed formula for trimix).
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509
diff
changeset
|
1151 if( int_temp > 100 *(short)char_I_deco_gas_change[g] ) |
711
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parents:
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diff
changeset
|
1152 deco_gas_change[g] = char_I_deco_gas_change[g]; |
126 | 1153 } |
116 | 1154 |
197 | 1155 const_ppO2 = char_I_const_ppO2 * 0.01; |
1156 float_desaturation_multiplier = char_I_desaturation_multiplier * 0.01; | |
1157 float_saturation_multiplier = char_I_saturation_multiplier * 0.01; | |
1158 GF_low = char_I_GF_Low_percentage * 0.01; | |
1159 GF_high = char_I_GF_High_percentage * 0.01; | |
126 | 1160 GF_delta = GF_high - GF_low; |
116 | 1161 } |
1162 | |
167 | 1163 ////////////////////////////////////////////////////////////////////////////// |
171 | 1164 // |
1165 // | |
116 | 1166 void calc_hauptroutine_update_tissues(void) |
1167 { | |
197 | 1168 assert( 0.00 <= N2_ratio && N2_ratio <= 1.00 ); |
1169 assert( 0.00 <= He_ratio && He_ratio <= 1.00 ); | |
782
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766
diff
changeset
|
1170 assert( (N2_ratio + He_ratio) <= 1.00 ); |
237 | 1171 assert( 0.800 < pres_respiration && pres_respiration < 14.0 ); |
197 | 1172 |
711
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parents:
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diff
changeset
|
1173 pres_diluent = pres_respiration; |
307 | 1174 if( char_I_const_ppO2 != 0 ) // new in v.101 |
186 | 1175 { |
322 | 1176 overlay float flush_ppO2 = pres_respiration * (1.0 - N2_ratio - He_ratio); |
711
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diff
changeset
|
1177 |
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minor cleanups for CNS/NOAA bugfix.
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diff
changeset
|
1178 pres_diluent -= const_ppO2; // new in v.101 |
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parents:
710
diff
changeset
|
1179 pres_diluent /= N2_ratio + He_ratio; // new in v.101 |
321 | 1180 if( pres_diluent < 0.0 ) |
1181 pres_diluent = 0.0; | |
711
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parents:
710
diff
changeset
|
1182 if( pres_diluent > pres_respiration ) // new in v.101 |
f555590f1419
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parents:
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diff
changeset
|
1183 pres_diluent = pres_respiration; // new in v.101 |
307 | 1184 |
711
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JeanDo <jd.gascuel@free.fr>
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diff
changeset
|
1185 char_O_diluent = (unsigned char)(pres_diluent/pres_respiration*100.0 + 0.5); |
322 | 1186 |
711
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parents:
710
diff
changeset
|
1187 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
|
1188 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
|
1189 char_O_flush_ppO2 = (unsigned char)(flush_ppO2*100.0 + 0.5); |
186 | 1190 } |
307 | 1191 |
310
b20fc8c4ac92
Fix EAD/END display (not mm, m with a trailling space)
JeanDo
parents:
307
diff
changeset
|
1192 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
|
1193 { |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1194 overlay float EAD, END; |
307 | 1195 |
310
b20fc8c4ac92
Fix EAD/END display (not mm, m with a trailling space)
JeanDo
parents:
307
diff
changeset
|
1196 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
|
1197 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
|
1198 |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1199 // 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
|
1200 // with plain air. |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1201 // ppN2 = 79% * (P_EAD - ppWater) |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1202 // EAD = (P_EAD - Psurface) * 10 |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1203 // ie: EAD = (ppN2 / 0.7902 + ppWater -Psurface) * 10 |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1204 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
|
1205 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
|
1206 char_O_EAD = (unsigned char)(EAD + 0.5); |
307 | 1207 |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1208 // END : Equivalent Narcotic Dive. |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1209 // 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
|
1210 // 0.23 btw). Hence the formula becomes: |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1211 // 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
|
1212 // ie: END = (Pambient - ppHe - Psurface) * BAR_TO_METER |
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 // Source cited: |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1215 // 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
|
1216 // 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
|
1217 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
|
1218 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
|
1219 char_O_END = (unsigned char)(END + 0.5); |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1220 } |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1221 else // new in v.101 |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1222 { |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1223 ppN2 = 0.0; // new in v.101 |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1224 ppHe = 0.0; // new in v.101 |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1225 char_O_EAD = char_O_END = 0; |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1226 } |
116 | 1227 |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1228 if(!char_I_step_is_1min) |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1229 calc_tissue(0); |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1230 else |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1231 calc_tissue(1); |
186 | 1232 |
192 | 1233 // Calc limit for surface, ie. GF_high. |
258 | 1234 calc_limit(); |
186 | 1235 |
786
0d1a82cdb3dc
compute ceiling in calc_hauptroutine_update_tissues
heinrichsweikamp
parents:
785
diff
changeset
|
1236 // Fill int_O_ceiling if ceiling is below the surface |
0d1a82cdb3dc
compute ceiling in calc_hauptroutine_update_tissues
heinrichsweikamp
parents:
785
diff
changeset
|
1237 if ((calc_lead_tissue_limit-pres_surface)>0) |
0d1a82cdb3dc
compute ceiling in calc_hauptroutine_update_tissues
heinrichsweikamp
parents:
785
diff
changeset
|
1238 int_O_ceiling = (short)((calc_lead_tissue_limit-pres_surface)*1000); |
0d1a82cdb3dc
compute ceiling in calc_hauptroutine_update_tissues
heinrichsweikamp
parents:
785
diff
changeset
|
1239 else |
0d1a82cdb3dc
compute ceiling in calc_hauptroutine_update_tissues
heinrichsweikamp
parents:
785
diff
changeset
|
1240 int_O_ceiling = 0; |
0d1a82cdb3dc
compute ceiling in calc_hauptroutine_update_tissues
heinrichsweikamp
parents:
785
diff
changeset
|
1241 |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1242 int_O_gtissue_press = (short)((pres_tissue_N2[char_O_gtissue_no] + pres_tissue_He[char_O_gtissue_no]) * 1000); |
171 | 1243 } |
1244 | |
116 | 1245 |
167 | 1246 ////////////////////////////////////////////////////////////////////////////// |
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1247 // Compute stops. |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1248 // |
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1249 // 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
|
1250 // 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
|
1251 // 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
|
1252 // break the loop when total time > 512msec. |
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1253 // |
116 | 1254 void calc_hauptroutine_calc_deco(void) |
1255 { | |
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1256 overlay unsigned char loop; |
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1257 |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1258 for(loop = 0; loop < 16; ++loop) |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1259 { |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1260 // 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
|
1261 if( tmr3() & (512*32) ) |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1262 break; |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1263 |
755 | 1264 if( calc_nextdecodepth() ) |
757 | 1265 { |
241 | 1266 if( temp_depth_limit == 0 ) |
1267 goto Surface; | |
116 | 1268 |
241 | 1269 //---- We hit a stop at temp_depth_limit --------------------- |
317 | 1270 temp_deco = temp_depth_limit * METER_TO_BAR // Convert to relative bar, |
757 | 1271 + pres_surface; // To absolute. |
471 | 1272 if( !update_deco_table() ) // Adds a one minute stops. |
1273 goto Surface; // Deco table full: abort... | |
241 | 1274 } |
1275 else | |
1276 { | |
1277 //---- No stop ----------------------------------------------- | |
317 | 1278 temp_deco -= (10*METER_TO_BAR); // Ascend 10m, no wait. |
169
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Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1279 |
241 | 1280 //---- Finish computations once surface is reached ----------- |
1281 if( temp_deco <= pres_surface ) | |
1282 { | |
1283 Surface: | |
471 | 1284 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
|
1285 copy_deco_table(); |
312
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1286 |
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1287 calc_ascenttime(); |
471 | 1288 char_O_deco_status = 0; // calc nullzeit next time. |
1289 char_O_deco_last_stop = 0; // Surface reached (to animate menu) | |
755 | 1290 return; |
241 | 1291 } |
1292 } | |
1293 //---- Then update tissue -------------------------------------------- | |
203 | 1294 sim_dive_mins++; // Advance simulated time by 1 minute. |
241 | 1295 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
|
1296 sim_alveolar_presures(); // Updates ppN2 and ppHe. |
192 | 1297 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
|
1298 } |
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1299 |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1300 // Surface not reached, need more stops... for menu animation. |
278 | 1301 char_O_deco_last_stop = temp_depth_limit; // Reached depth. |
116 | 1302 } |
1303 | |
167 | 1304 ////////////////////////////////////////////////////////////////////////////// |
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1305 // Simulation ascention to first deco stop. |
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1306 // |
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1307 // 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
|
1308 // 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
|
1309 // (or we are already in deep shit). |
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1310 // |
334
4ccdc72ec0e5
BUGFIX minor error in gas-switch algo (spurious surface decostop rarely added).
JeanDo
parents:
326
diff
changeset
|
1311 // Input: pres_respiration |
4ccdc72ec0e5
BUGFIX minor error in gas-switch algo (spurious surface decostop rarely added).
JeanDo
parents:
326
diff
changeset
|
1312 // Output: temp_deco |
4ccdc72ec0e5
BUGFIX minor error in gas-switch algo (spurious surface decostop rarely added).
JeanDo
parents:
326
diff
changeset
|
1313 // |
312
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1314 // 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
|
1315 // before ascent. |
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1316 void sim_ascent_to_first_stop(void) |
116 | 1317 { |
698 | 1318 overlay unsigned char fast = 1; // 1min or 2sec steps. |
1319 | |
171 | 1320 update_startvalues(); |
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1321 clear_deco_table(); |
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1322 |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1323 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
|
1324 |
312
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1325 // 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
|
1326 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
|
1327 sim_extra_time(); |
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1328 |
241 | 1329 //---- 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
|
1330 for(;;) |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1331 { |
461 | 1332 overlay float old_deco = temp_deco; // Pamb backup (bars) |
460 | 1333 |
698 | 1334 // Try ascending 1 full minute (fast) or 2sec (!fast): |
1335 if( fast ) | |
1336 temp_deco -= 10*METER_TO_BAR; // 1 min, at 10m/min. ~ 1bar. | |
1337 else | |
1338 temp_deco -= (10.0/30.0)*METER_TO_BAR; // 2sec at 10m/min. | |
1339 | |
461 | 1340 if( temp_deco < pres_surface ) // But don't go over surface. |
1341 temp_deco = pres_surface; | |
203 | 1342 |
461 | 1343 // Recompute sim_lead_tissue_limit at GF_low (deepest stop), because |
1344 // one minute passed. | |
212 | 1345 sim_limit(GF_low); |
1346 | |
1347 // Did we reach deepest remaining stop ? | |
241 | 1348 if( temp_deco < sim_lead_tissue_limit ) |
212 | 1349 { |
461 | 1350 temp_deco = old_deco; // Restore last correct depth, |
698 | 1351 |
1352 if( fast ) | |
1353 { | |
1354 fast = 0; // Retry with 2sec steps. | |
1355 continue; | |
1356 } | |
1357 else | |
1358 break; // Done... | |
212 | 1359 } |
1360 | |
203 | 1361 // Did we reach surface ? |
460 | 1362 // NOTE: we should round BEFORE checking surface is reached. |
461 | 1363 temp_depth_limit = (unsigned char)(0.5 + (temp_deco - pres_surface) * BAR_TO_METER); |
1364 if( temp_depth_limit == 0 ) | |
203 | 1365 { |
1366 temp_deco = pres_surface; // Yes: finished ! | |
1367 break; | |
1368 } | |
169
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Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1369 |
241 | 1370 // Check for gas change below new depth ? |
1371 if( gas_switch_deepest() ) | |
1372 { | |
334
4ccdc72ec0e5
BUGFIX minor error in gas-switch algo (spurious surface decostop rarely added).
JeanDo
parents:
326
diff
changeset
|
1373 assert( temp_depth_limit > 0); |
4ccdc72ec0e5
BUGFIX minor error in gas-switch algo (spurious surface decostop rarely added).
JeanDo
parents:
326
diff
changeset
|
1374 |
317 | 1375 temp_deco = temp_depth_limit * METER_TO_BAR + pres_surface; |
212 | 1376 break; |
241 | 1377 } |
171 | 1378 |
698 | 1379 if( fast ) |
1380 sim_dive_mins++; // Advance simulated time by 1 minute. | |
241 | 1381 sim_alveolar_presures(); // temp_deco --> ppN2/ppHe |
698 | 1382 sim_tissue(fast); // and update tissues for 1 min. |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
JeanDo <jd.gascuel@free.fr>
parents:
710
diff
changeset
|
1383 } |
167 | 1384 } |
116 | 1385 |
167 | 1386 ////////////////////////////////////////////////////////////////////////////// |
312
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
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parents:
310
diff
changeset
|
1387 // Simulation extra time at the current depth. |
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1388 // |
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1389 // This routine is used for @+5min feature. |
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1390 void sim_extra_time(void) |
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1391 { |
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1392 overlay unsigned char extra = read_custom_function(58); |
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1393 do { |
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1394 sim_dive_mins++; // Advance simulated time by 1 minute. |
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1395 sim_tissue(1); // and update tissues for 1 min. |
312
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1396 } while( --extra != 0 ); |
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1397 } |
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1398 |
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1399 ////////////////////////////////////////////////////////////////////////////// |
167 | 1400 // calc_tissue |
1401 // | |
116 | 1402 // optimized in v.101 |
167 | 1403 // |
184 | 1404 static void calc_tissue(PARAMETER unsigned char period) |
116 | 1405 { |
251 | 1406 assert( 0.00 <= ppN2 && ppN2 < 11.2 ); // 80% N2 at 130m |
1407 assert( 0.00 <= ppHe && ppHe < 12.6 ); // 90% He at 130m | |
236 | 1408 |
338 | 1409 for (ci=0;ci<NUM_COMP;ci++) |
126 | 1410 { |
258 | 1411 read_buhlmann_times(period); // 2 sec or 1 min period. |
116 | 1412 |
126 | 1413 // N2 |
339 | 1414 temp_tissue = (ppN2 - pres_tissue_N2[ci]) * var_N2_e; |
126 | 1415 temp_tissue_safety(); |
339 | 1416 pres_tissue_N2[ci] += temp_tissue; |
165 | 1417 |
126 | 1418 // He |
339 | 1419 temp_tissue = (ppHe - pres_tissue_He[ci]) * var_He_e; |
126 | 1420 temp_tissue_safety(); |
339 | 1421 pres_tissue_He[ci] += temp_tissue; |
192 | 1422 } |
167 | 1423 } |
116 | 1424 |
167 | 1425 ////////////////////////////////////////////////////////////////////////////// |
192 | 1426 // calc_limit |
167 | 1427 // |
192 | 1428 // New in v.111 : separated from calc_tissue(), and depends on GF value. |
167 | 1429 // |
258 | 1430 static void calc_limit(void) |
167 | 1431 { |
192 | 1432 char_O_gtissue_no = 255; |
1433 calc_lead_tissue_limit = 0.0; | |
1434 | |
338 | 1435 for(ci=0; ci<NUM_COMP;ci++) |
192 | 1436 { |
339 | 1437 overlay float N2 = pres_tissue_N2[ci]; |
1438 overlay float He = pres_tissue_He[ci]; | |
293
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1439 overlay float p = N2 + He; |
192 | 1440 |
258 | 1441 read_buhlmann_coefficients(); |
293
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1442 var_N2_a = (var_N2_a * N2 + var_He_a * He) / p; |
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1443 var_N2_b = (var_N2_b * N2 + var_He_b * He) / p; |
116 | 1444 |
192 | 1445 // Apply the Eric Baker's varying gradient factor correction. |
1446 // Note: the correction factor depends both on GF and b, | |
1447 // Actual values are in the 1.5 .. 1.0 range (for a GF=30%), | |
1448 // so that can change who is the leading gas... | |
1449 // Note: Also depends of the GF. So the calcul is different for | |
1450 // GF_low, current GF, or GF_high... | |
1451 // *BUT* calc_tissue() is used to compute bottom time, | |
1452 // hence what would happend at surface, | |
1453 // hence at GF_high. | |
509 | 1454 if( char_I_deco_model != 0 ) |
258 | 1455 p = ( p - var_N2_a * GF_high) * var_N2_b |
1456 / (GF_high + var_N2_b * (1.0 - GF_high)); | |
192 | 1457 else |
1458 p = (p - var_N2_a) * var_N2_b; | |
258 | 1459 if( p < 0.0 ) p = 0.0; |
192 | 1460 |
1461 if( p > calc_lead_tissue_limit ) | |
1462 { | |
1463 char_O_gtissue_no = ci; | |
1464 calc_lead_tissue_limit = p; | |
1465 } | |
1466 } | |
197 | 1467 |
338 | 1468 assert( char_O_gtissue_no < NUM_COMP ); |
197 | 1469 assert( 0.0 <= calc_lead_tissue_limit && calc_lead_tissue_limit <= 14.0); |
167 | 1470 } |
1471 | |
1472 ////////////////////////////////////////////////////////////////////////////// | |
1473 // calc_nullzeit | |
1474 // | |
1475 // calculates the remaining bottom time | |
1476 // | |
511
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1477 // NOTE: Erik Baker's closed formula works for Nitroxes. Trimix adds a second |
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1478 // exponential term to the M-value equation, making it impossible to |
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1479 // invert... So we have to make a fast-simu until we find a better way. |
509 | 1480 // |
1481 // Input: pres_respiration | |
1482 // Output: char_O_nullzeit | |
167 | 1483 // |
1484 static void calc_nullzeit(void) | |
1485 { | |
511
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1486 //---- Compute ppN2 and ppHe --------------------------------------------- |
509 | 1487 temp_deco = pres_respiration; |
1488 sim_alveolar_presures(); | |
167 | 1489 |
509 | 1490 char_O_nullzeit = 240; |
1491 for(ci=0; ci<NUM_COMP; ci++) | |
1492 { | |
511
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1493 //---- Read A/B values and loading factor for N2 and He -------------- |
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1494 overlay float tN2 = pres_tissue_N2[ci]; |
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1495 overlay float tHe = pres_tissue_He[ci]; |
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1496 overlay float t = tN2 + tHe; |
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1497 overlay unsigned char ndl; |
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1498 overlay unsigned char period = 10; |
192 | 1499 |
509 | 1500 read_buhlmann_coefficients(); |
511
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1501 read_buhlmann_times(2); // Starts with a 10min period. |
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1502 |
511
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1503 //---- Simulate for that tissue -------------------------------------- |
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1504 // NOTE: No need to simulate for longuer than the already found NDL. |
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1505 for(ndl=0; ndl<char_O_nullzeit;) |
509 | 1506 { |
511
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1507 //---- Compute updated mix M-value at surface |
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1508 overlay float a = (var_N2_a * tN2 + var_He_a * tHe) / t; |
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1509 overlay float b = (var_N2_b * tN2 + var_He_b * tHe) / t; |
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1510 overlay float M0 = (a + pres_surface/b); |
116 | 1511 |
511
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1512 //---- Add 10min/1min to N2/He tissues |
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1513 overlay float dTN2 = (ppN2 - tN2) * var_N2_e; |
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1514 overlay float dTHe = (ppHe - tHe) * var_He_e; |
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1515 |
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1516 //---- Apply security margin when using the non-GF model |
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1517 if( char_I_deco_model == 0 ) |
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1518 { |
821
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1519 // NDL can be computed while ascending... SO we have |
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1520 // to check wether we are saturating or desaturating. |
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1521 if( dTN2 > 0.0 ) dTN2 *= float_saturation_multiplier; |
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1522 else dTN2 *= float_desaturation_multiplier; |
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1523 |
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1524 if( dTHe > 0.0 ) dTHe *= float_saturation_multiplier; |
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1525 else dTHe *= float_saturation_multiplier; |
511
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1526 } |
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1527 else // Or GF-based model |
509 | 1528 M0 = GF_high * (M0 - pres_surface) + pres_surface; |
167 | 1529 |
511
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1530 //---- Simulate off-gasing while going to surface |
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1531 // TODO ! |
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1532 // dTN2 -= exp( ... ascent time ... ppN2...) |
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1533 // dTHe -= exp( ... ascent time ... ppHe...) |
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1534 |
534
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1535 //---- Ok now, and still ok to surface after 1 or 10 minutes ? |
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1536 if( (t <= M0) && (t + dTN2 + dTHe <= M0) ) |
509 | 1537 { |
511
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1538 tN2 += dTN2; // YES: apply gas loadings, |
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1539 tHe += dTHe; |
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1540 t = tN2 + tHe; |
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1541 ndl += period; // increment NDL, |
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1542 continue; // and loop. |
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1543 } |
116 | 1544 |
511
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1545 //---- Should we retry with smaller steps ? |
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1546 if( period == 10 ) |
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1547 { |
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1548 read_buhlmann_times(1); // 1min coefs. |
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1549 period = 1; |
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1550 continue; |
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1551 } |
167 | 1552 |
511
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1553 //---- ELSE make a linear approx for the last minute |
524 | 1554 // Usefull to have a meaningfull rounding of NDL. |
1555 // But ONLY it positive (negativ casted to unsigned is bad). | |
1556 if( M0 > t ) | |
1557 ndl += (unsigned char)(0.5f + (M0-t)/(dTN2+dTHe)); | |
511
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1558 break; |
509 | 1559 } |
511
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1560 |
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1561 // Keep the shortest NDL found |
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1562 if( ndl < char_O_nullzeit ) |
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1563 char_O_nullzeit = ndl; |
339 | 1564 } |
167 | 1565 } |
116 | 1566 |
167 | 1567 ////////////////////////////////////////////////////////////////////////////// |
1568 // calc_ascenttime | |
1569 // | |
312
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1570 // Summup ascent from bottom to surface, at 1 bar/min, 1min for last 3 meters, |
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1571 // and all stops. |
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1572 // |
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1573 // Result in int_O_ascenttime, or int_O_extra_ascenttime if in @+5min variant. |
169
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1574 static void calc_ascenttime(void) |
116 | 1575 { |
323 | 1576 overlay unsigned char x; |
1577 overlay unsigned short sum; | |
168 | 1578 |
323 | 1579 // + 0.7 to count 1 minute ascent time from 3 metre to surface |
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1580 overlay float ascent = pres_respiration - pres_surface + 0.7; |
323 | 1581 if (ascent < 0.0) |
1582 ascent = 0.0; | |
1583 sum = (unsigned short)(ascent + 0.99); | |
312
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1584 |
338 | 1585 for(x=0; x<NUM_STOPS && internal_deco_depth[x]; x++) |
323 | 1586 sum += (unsigned short)internal_deco_time[x]; |
1587 | |
1588 if( char_O_deco_status == 1 ) | |
1589 int_O_ascenttime = sum; | |
126 | 1590 else |
323 | 1591 int_O_extra_ascenttime = sum; |
167 | 1592 } |
116 | 1593 |
167 | 1594 ////////////////////////////////////////////////////////////////////////////// |
1595 // update_startvalues | |
1596 // | |
116 | 1597 // updated in v.102 |
167 | 1598 // |
116 | 1599 void update_startvalues(void) |
1600 { | |
167 | 1601 overlay unsigned char x; |
116 | 1602 |
201 | 1603 // Start ascent simulation with current tissue partial pressures. |
711
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1604 for(x=0; x<NUM_COMP; x++) |
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1605 { |
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1606 sim_pres_tissue_N2[x] = pres_tissue_N2[x]; |
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1607 sim_pres_tissue_He[x] = pres_tissue_He[x]; |
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1608 } |
197 | 1609 |
201 | 1610 // No leading tissue (yet) for this ascent simulation. |
197 | 1611 sim_lead_tissue_limit = 0.0; |
1612 sim_lead_tissue_no = 255; | |
167 | 1613 } |
116 | 1614 |
167 | 1615 ////////////////////////////////////////////////////////////////////////////// |
192 | 1616 // sim_tissue |
167 | 1617 // |
116 | 1618 // optimized in v.101 |
167 | 1619 // |
1620 // Function very simular to calc_tissue, but: | |
1621 // + Use a 1min or 10min period. | |
1622 // + Do it on sim_pres_tissue, instead of pres_tissue. | |
184 | 1623 static void sim_tissue(PARAMETER unsigned char period) |
116 | 1624 { |
251 | 1625 assert( 0.00 <= ppN2 && ppN2 < 11.2 ); // 80% N2 at 130m |
1626 assert( 0.00 <= ppHe && ppHe < 12.6 ); // 90% He at 130m | |
236 | 1627 |
338 | 1628 for(ci=0; ci<NUM_COMP; ci++) |
126 | 1629 { |
258 | 1630 read_buhlmann_times(period); // 1 or 10 minute(s) interval |
165 | 1631 |
126 | 1632 // N2 |
339 | 1633 temp_tissue = (ppN2 - sim_pres_tissue_N2[ci]) * var_N2_e; |
126 | 1634 temp_tissue_safety(); |
339 | 1635 sim_pres_tissue_N2[ci] += temp_tissue; |
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1636 |
126 | 1637 // He |
339 | 1638 temp_tissue = (ppHe - sim_pres_tissue_He[ci]) * var_He_e; |
126 | 1639 temp_tissue_safety(); |
339 | 1640 sim_pres_tissue_He[ci] += temp_tissue; |
192 | 1641 } |
167 | 1642 } |
116 | 1643 |
167 | 1644 ////////////////////////////////////////////////////////////////////////////// |
192 | 1645 // sim_limit() |
1646 // | |
1647 // New in v.111 | |
1648 // | |
1649 // Function separated from sim_tissue() to allow recomputing limit on | |
1650 // different depth, because it depends on current gradient factor. | |
167 | 1651 // |
192 | 1652 static void sim_limit(PARAMETER float GF_current) |
116 | 1653 { |
212 | 1654 assert( 0.0 < GF_current && GF_current <= 1.0f); |
1655 | |
192 | 1656 sim_lead_tissue_limit = 0.0; |
212 | 1657 sim_lead_tissue_no = 0; // If no one is critic, keep first tissue. |
192 | 1658 |
338 | 1659 for(ci=0; ci<NUM_COMP; ci++) |
192 | 1660 { |
339 | 1661 overlay float N2 = sim_pres_tissue_N2[ci]; |
1662 overlay float He = sim_pres_tissue_He[ci]; | |
241 | 1663 overlay float p = N2 + He; |
192 | 1664 |
258 | 1665 read_buhlmann_coefficients(); |
241 | 1666 var_N2_a = (var_N2_a * N2 + var_He_a * He) / p; |
1667 var_N2_b = (var_N2_b * N2 + var_He_b * He) / p; | |
192 | 1668 |
1669 // Apply the Eric Baker's varying gradient factor correction. | |
1670 // Note: the correction factor depends both on GF and b, | |
1671 // Actual values are in the 1.5 .. 1.0 range (for a GF=30%), | |
1672 // so that can change who is the leading gas... | |
1673 // Note: Also depends of the GF_current... | |
509 | 1674 if( char_I_deco_model != 0 ) |
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1675 p = ( p - var_N2_a * GF_current) |
302 | 1676 / (GF_current / var_N2_b + 1.0 - GF_current); |
192 | 1677 else |
1678 p = (p - var_N2_a) * var_N2_b; | |
1679 | |
1680 if( p > sim_lead_tissue_limit ) | |
1681 { | |
1682 sim_lead_tissue_no = ci; | |
1683 sim_lead_tissue_limit = p; | |
1684 } | |
1685 } // for ci | |
197 | 1686 |
338 | 1687 assert( sim_lead_tissue_no < NUM_COMP ); |
237 | 1688 assert( 0.0 <= sim_lead_tissue_limit && sim_lead_tissue_limit <= 14.0 ); |
167 | 1689 } |
116 | 1690 |
167 | 1691 ////////////////////////////////////////////////////////////////////////////// |
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1692 // clear_deco_table |
167 | 1693 // |
1694 // unchanged in v.101 | |
1695 // | |
169
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1696 static void clear_deco_table(void) |
116 | 1697 { |
169
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1698 overlay unsigned char x; |
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1699 |
338 | 1700 for(x=0; x<NUM_STOPS; ++x) |
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1701 { |
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1702 internal_deco_time [x] = 0; |
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1703 internal_deco_depth[x] = 0; |
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1704 } |
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1705 } |
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1706 |
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1707 ////////////////////////////////////////////////////////////////////////////// |
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1708 // update_deco_table |
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1709 // |
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1710 // Add 1 min to current stop. |
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1711 // |
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1712 // Inputs: |
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1713 // temp_depth_limit = stop's depth, in meters. |
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1714 // In/Out: |
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1715 // internal_deco_depth[] : depth (in metres) of each stops. |
169
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1716 // internal_deco_time [] : time (in minutes) of each stops. |
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1717 // |
471 | 1718 static unsigned char update_deco_table() |
169
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1719 { |
192 | 1720 overlay unsigned char x; |
247
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1721 assert( temp_depth_limit < 128 ); // Can't be negativ (overflown). |
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1722 assert( temp_depth_limit > 0 ); // No stop at surface... |
169
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1723 |
338 | 1724 for(x=0; x<NUM_STOPS; ++x) |
192 | 1725 { |
212 | 1726 // Make sure deco-stops are recorded in order: |
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1727 assert( !internal_deco_depth[x] || temp_depth_limit <= internal_deco_depth[x] ); |
212 | 1728 |
766
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1729 if( internal_deco_depth[x]== temp_depth_limit ) |
192 | 1730 { |
1731 // Do not overflow (max 255') | |
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1732 if( internal_deco_time[x] < 255 ) |
192 | 1733 { |
1734 internal_deco_time[x]++; | |
471 | 1735 return 1; |
192 | 1736 } |
1737 // But store extra in the next stop... | |
169
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1738 } |
192 | 1739 |
169
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1740 if( internal_deco_depth[x] == 0 ) |
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1741 { |
192 | 1742 internal_deco_depth[x] = temp_depth_limit; |
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1743 |
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1744 internal_deco_time[x] = 1; |
757 | 1745 internal_deco_gas[x] = sim_gas_last_used; |
471 | 1746 return 1; |
169
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1747 } |
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1748 } |
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1749 |
192 | 1750 // Can't store stops at more than 96m. |
1751 // Or stops at less that 3m too. | |
169
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1752 // Just do nothing with that... |
471 | 1753 return 0; |
167 | 1754 } |
116 | 1755 |
167 | 1756 ////////////////////////////////////////////////////////////////////////////// |
1757 // calc_gradient_factor | |
1758 // | |
165 | 1759 // optimized in v.101 (var_N2_a) |
116 | 1760 // new code in v.102 |
167 | 1761 // |
1762 static void calc_gradient_factor(void) | |
116 | 1763 { |
197 | 1764 overlay float gf; |
339 | 1765 overlay float N2 = pres_tissue_N2[char_O_gtissue_no]; |
1766 overlay float He = pres_tissue_He[char_O_gtissue_no]; | |
237 | 1767 |
338 | 1768 assert( char_O_gtissue_no < NUM_COMP ); |
237 | 1769 assert( 0.800 <= pres_respiration && pres_respiration < 14.0 ); |
197 | 1770 |
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1771 // tissue > respiration (currently off-gasing) |
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1772 // GF = 0% when respiration == tissue, ie. bubbles are at equilibrium. |
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1773 // GF = 100% when respiration == limit. |
293
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1774 temp_tissue = N2 + He; |
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1775 if( temp_tissue <= pres_respiration ) |
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1776 gf = 0.0; |
197 | 1777 else |
1778 { | |
293
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1779 overlay float limit = calc_lead_tissue_limit; |
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1780 // NOTE: in GF model, calc_lead_tissue_limit include already the |
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1781 // correction due to gradient factor. To compute the actual |
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1782 // current GF, we need to (re-)compute the raw ambiant-pressure |
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1783 // limit from the Bühlmann model. |
509 | 1784 if( char_I_deco_model != 0 ) |
293
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1785 { |
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1786 ci = char_O_gtissue_no; |
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1787 read_buhlmann_coefficients(); |
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1788 var_N2_a = (var_N2_a * N2 + var_He_a * He) / temp_tissue; |
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1789 var_N2_b = (var_N2_b * N2 + var_He_b * He) / temp_tissue; |
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1790 limit = (temp_tissue - var_N2_a) * var_N2_b; |
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1791 } |
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1792 |
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1793 gf = (temp_tissue - pres_respiration) |
293
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1794 / (temp_tissue - limit) |
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1795 * 100.0; |
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1796 if( gf > 254.5 ) gf = 255.0; |
197 | 1797 if( gf < 0.0 ) gf = 0.0; |
1798 } | |
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1799 char_O_gradient_factor = (unsigned char)(gf+0.5f); |
116 | 1800 |
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1801 if( char_I_deco_model != 0 ) // calculate relative gradient factor |
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1802 { |
197 | 1803 overlay float rgf; |
1804 | |
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1805 if( low_depth < 3 ) |
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|
1806 rgf = GF_high; |
197 | 1807 else |
1808 { | |
317 | 1809 overlay float temp1 = low_depth * METER_TO_BAR; |
197 | 1810 overlay float temp2 = pres_respiration - pres_surface; |
186 | 1811 |
197 | 1812 if (temp2 <= 0) |
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1813 rgf = GF_high; |
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1814 else if (temp2 >= temp1) |
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1815 rgf = GF_low; |
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1816 else |
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1817 rgf = GF_low + (temp1 - temp2)/temp1*GF_delta; |
197 | 1818 } |
186 | 1819 |
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1820 rgf = gf / rgf; // gf is already in percent |
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1821 if( rgf < 0.0 ) rgf = 0.0; |
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1822 if( rgf > 254.5 ) rgf = 255.0; |
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1823 char_O_relative_gradient_GF = (unsigned char)(rgf+0.5f); |
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1824 } // calc relative gradient factor |
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1825 else |
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1826 { |
186 | 1827 char_O_relative_gradient_GF = char_O_gradient_factor; |
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1828 } |
167 | 1829 } |
116 | 1830 |
167 | 1831 ////////////////////////////////////////////////////////////////////////////// |
1832 // deco_calc_desaturation_time | |
1833 // | |
116 | 1834 // FIXED N2_ratio |
1835 // unchanged in v.101 | |
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1836 // Inputs: int_I_pres_surface, ppWater, char_I_desaturation_multiplier |
233 | 1837 // Outputs: int_O_desaturation_time, char_O_tissue_saturation[0..31] |
167 | 1838 // |
116 | 1839 void deco_calc_desaturation_time(void) |
1840 { | |
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1841 RESET_C_STACK |
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1842 |
233 | 1843 assert( 800 < int_I_pres_surface && int_I_pres_surface < 1100 ); |
1844 assert( 0 < char_I_desaturation_multiplier && char_I_desaturation_multiplier <= 100 ); | |
1845 | |
237 | 1846 N2_ratio = 0.7902; // FIXED sum as stated in bühlmann |
233 | 1847 pres_surface = int_I_pres_surface * 0.001; |
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1848 ppN2 = N2_ratio * (pres_surface - ppWater); |
126 | 1849 int_O_desaturation_time = 0; |
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1850 float_desaturation_multiplier = char_I_desaturation_multiplier * (0.01 * SURFACE_DESAT_FACTOR); |
233 | 1851 |
339 | 1852 for(ci=0; ci<NUM_COMP; ci++) |
126 | 1853 { |
251 | 1854 overlay unsigned short desat_time; // For a particular compartiment, in min. |
1855 overlay float temp1; | |
1856 overlay float temp2; | |
1857 overlay float temp3; | |
1858 overlay float temp4; | |
338 | 1859 |
509 | 1860 read_buhlmann_ht(); |
338 | 1861 |
126 | 1862 // saturation_time (for flight) and N2_saturation in multiples of halftime |
1863 // version v.100: 1.1 = 10 percent distance to totally clean (totally clean is not possible, would take infinite time ) | |
1864 // 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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1865 // changes in v.101: 1.05 = 5 percent dist to totally clean is new desaturation point for display and NoFly calculations |
126 | 1866 // N2 |
339 | 1867 temp1 = 1.05 * ppN2 - pres_tissue_N2[ci]; |
1868 temp2 = ppN2 - pres_tissue_N2[ci]; | |
126 | 1869 if (temp2 >= 0.0) |
233 | 1870 temp1 = 0.0; |
126 | 1871 else |
1872 temp1 = temp1 / temp2; | |
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1873 |
251 | 1874 if( 0.0 < temp1 && temp1 < 1.0 ) |
126 | 1875 { |
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1876 // 0.6931 is ln(2), because the math function log() calculates with a base of e not 2 as requested. |
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1877 // minus because log is negative. |
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1878 temp1 = log(1.0 - temp1) / -0.6931; // temp1 is the multiples of half times necessary. |
509 | 1879 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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1880 |
126 | 1881 } |
1882 else | |
1883 { | |
233 | 1884 temp1 = 0.0; |
1885 temp2 = 0.0; | |
126 | 1886 } |
116 | 1887 |
126 | 1888 // He |
339 | 1889 temp3 = 0.1 - pres_tissue_He[ci]; |
126 | 1890 if (temp3 >= 0.0) |
233 | 1891 temp3 = 0.0; |
126 | 1892 else |
339 | 1893 temp3 = - temp3 / pres_tissue_He[ci]; |
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1894 |
251 | 1895 if( 0.0 < temp3 && temp3 < 1.0 ) |
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1896 { |
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1897 temp3 = log(1.0 - temp3) / -0.6931; // temp1 is the multiples of half times necessary. |
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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 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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|
1901 } |
126 | 1902 else |
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1903 { |
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1904 temp3 = 0.0; |
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|
1905 temp4 = 0.0; |
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|
1906 } |
116 | 1907 |
126 | 1908 // saturation_time (for flight) |
1909 if (temp4 > temp2) | |
203 | 1910 desat_time = (unsigned short)temp4; |
126 | 1911 else |
203 | 1912 desat_time = (unsigned short)temp2; |
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1913 |
251 | 1914 if(desat_time > int_O_desaturation_time) |
1915 int_O_desaturation_time = desat_time; | |
116 | 1916 |
126 | 1917 // N2 saturation in multiples of halftime for display purposes |
339 | 1918 temp2 = temp1 * 20.0; // 0 = 1/8, 120 = 0, 249 = 8 |
1919 temp2 = temp2 + 80.0; // set center | |
126 | 1920 if (temp2 < 0.0) |
1921 temp2 = 0.0; | |
1922 if (temp2 > 255.0) | |
1923 temp2 = 255.0; | |
339 | 1924 char_O_tissue_N2_saturation[ci] = (char)temp2; |
233 | 1925 |
126 | 1926 // He saturation in multiples of halftime for display purposes |
339 | 1927 temp4 = temp3 * 20.0; // 0 = 1/8, 120 = 0, 249 = 8 |
1928 temp4 = temp4 + 80.0; // set center | |
126 | 1929 if (temp4 < 0.0) |
1930 temp4 = 0.0; | |
1931 if (temp4 > 255.0) | |
1932 temp4 = 255.0; | |
339 | 1933 char_O_tissue_He_saturation[ci] = (char)temp4; |
126 | 1934 } // for |
167 | 1935 } |
116 | 1936 |
167 | 1937 ////////////////////////////////////////////////////////////////////////////// |
1938 // calc_wo_deco_step_1_min | |
1939 // | |
116 | 1940 // FIXED N2 Ratio |
1941 // optimized in v.101 (...saturation_multiplier) | |
1942 // desaturation slowed down to 70,42% | |
167 | 1943 // |
1944 static void calc_wo_deco_step_1_min(void) | |
116 | 1945 { |
251 | 1946 assert( 800 < int_I_pres_surface && int_I_pres_surface < 1100 ); |
1947 assert( 800 < int_I_pres_respiration && int_I_pres_respiration < 1100 ); | |
1948 assert( 100 <= char_I_saturation_multiplier && char_I_saturation_multiplier < 200 ); | |
1949 assert( 0 < char_I_desaturation_multiplier && char_I_desaturation_multiplier <= 100 ); | |
1950 | |
126 | 1951 N2_ratio = 0.7902; // FIXED, sum lt. buehlmann |
368 | 1952 pres_respiration = pres_surface = int_I_pres_surface * 0.001; |
1953 ppN2 = N2_ratio * (pres_respiration - ppWater); | |
200 | 1954 ppHe = 0.0; |
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|
1955 float_desaturation_multiplier = char_I_desaturation_multiplier * (0.01 * SURFACE_DESAT_FACTOR); |
197 | 1956 float_saturation_multiplier = char_I_saturation_multiplier * 0.01; |
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1957 |
339 | 1958 calc_tissue(1); // update the pressure in the tissues N2/He in accordance with the new ambient pressure |
711
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1959 |
169
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1960 clear_deco_table(); |
200 | 1961 char_O_deco_status = 3; // surface new in v.102 : stays in surface state. |
126 | 1962 char_O_nullzeit = 0; |
168 | 1963 int_O_ascenttime = 0; |
323 | 1964 int_O_extra_ascenttime = 0; |
126 | 1965 calc_gradient_factor(); |
167 | 1966 } |
126 | 1967 |
167 | 1968 ////////////////////////////////////////////////////////////////////////////// |
368 | 1969 // calc_dive_interval |
1970 // | |
1971 // Prepare tissue for delay before the next dive simulation. | |
1972 // | |
1973 // Inputs: char_I_dive_interval == delay before dive (in 10' steps). | |
1974 // Outputs: pres_tissue_N2/He[], CNS_fraction | |
1975 // | |
1976 // Should be protected by deco_push_tissues_to_vault(), | |
1977 // deco_pull_tissues_from_vault() | |
1978 // | |
1979 // desaturation slowed down to 70,42%. | |
1980 // | |
511
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|
1981 static void calc_dive_interval(void) |
368 | 1982 { |
1983 overlay unsigned char t; | |
491
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|
1984 overlay unsigned char backup_model; |
368 | 1985 |
1986 //---- Initialize simulation parameters ---------------------------------- | |
1987 N2_ratio = 0.7902; // FIXED, sum lt. buehlmann | |
1988 pres_respiration = pres_surface = int_I_pres_surface * 0.001; | |
1989 ppN2 = N2_ratio * (pres_respiration - ppWater); | |
1990 ppHe = 0.0; | |
491
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|
1991 float_desaturation_multiplier = char_I_desaturation_multiplier * (0.01 * SURFACE_DESAT_FACTOR); |
368 | 1992 float_saturation_multiplier = char_I_saturation_multiplier * 0.01; |
1993 | |
568 | 1994 // Make sure SURFACE_DESAT_FACTOR is applied: |
491
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diff
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|
1995 backup_model = char_I_deco_model; |
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diff
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|
1996 char_I_deco_model = 0; |
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diff
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|
1997 |
368 | 1998 //---- Perform simulation ------------------------------------------------ |
1999 for(t=0; t<char_I_dive_interval; ++t) | |
2000 { | |
2001 calc_tissue(2); // period = 10min. | |
2002 CNS_fraction = 0.92587471 * CNS_fraction; // Half-time = 90min: (1/2)^(1/9) | |
2003 } | |
514 | 2004 assert( 0.0 <= CNS_fraction && CNS_fraction <= 2.56 ); |
2005 char_O_CNS_fraction = (unsigned char)(CNS_fraction * 100.0 + 0.5); | |
711
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|
2006 |
491
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|
2007 //---- Restore model ----------------------------------------------------- |
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diff
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|
2008 char_I_deco_model = backup_model; |
368 | 2009 } |
2010 | |
2011 ////////////////////////////////////////////////////////////////////////////// | |
167 | 2012 ////////////////////////////////////////////////////////////////////////////// |
2013 ////////////////////////////////// deco_hash ///////////////////////////////// | |
2014 ////////////////////////////////////////////////////////////////////////////// | |
2015 ////////////////////////////////////////////////////////////////////////////// | |
126 | 2016 |
184 | 2017 #ifndef CROSS_COMPILE |
116 | 2018 void deco_hash(void) |
2019 { | |
167 | 2020 overlay unsigned char md_i, md_j; // Loop index. |
2021 overlay unsigned char md_t; | |
2022 overlay unsigned char md_buffer[16]; | |
2023 overlay unsigned char md_temp; | |
203 | 2024 overlay unsigned short md_pointer; |
167 | 2025 |
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|
2026 RESET_C_STACK |
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|
2027 |
126 | 2028 // init |
164 | 2029 for(md_i=0;md_i<16;md_i++) |
126 | 2030 { |
2031 md_state[md_i] = 0; | |
164 | 2032 char_O_hash[md_i] = 0; |
126 | 2033 } // for md_i 16 |
116 | 2034 |
126 | 2035 _asm |
167 | 2036 movlw 0x01 // md_pi address. |
2037 movwf TBLPTRU,0 | |
2038 movlw 0x7E | |
2039 movwf TBLPTRH,0 | |
2040 movlw 0x00 | |
2041 movwf TBLPTRL,0 | |
126 | 2042 _endasm; |
165 | 2043 md_i = 0; |
2044 do { | |
126 | 2045 _asm |
2046 TBLRDPOSTINC | |
2047 movff TABLAT,md_temp | |
2048 _endasm | |
165 | 2049 md_pi_subst[md_i++] = md_temp; |
2050 } while( md_i != 0 ); | |
2051 | |
126 | 2052 _asm |
167 | 2053 movlw 0x00 |
2054 movwf TBLPTRU,0 | |
2055 movlw 0x00 | |
2056 movwf TBLPTRH,0 | |
2057 movlw 0x00 | |
2058 movwf TBLPTRL,0 | |
126 | 2059 _endasm |
167 | 2060 |
126 | 2061 // cycle buffers |
2062 for (md_pointer=0x0000;md_pointer<0x17f3;md_pointer++) | |
2063 { | |
2064 md_t = 0; | |
2065 for (md_i=0;md_i<16;md_i++) | |
2066 { | |
2067 if(md_pointer == 9) | |
164 | 2068 md_temp = char_O_hash[md_i]; |
126 | 2069 else |
2070 { | |
2071 _asm | |
167 | 2072 TBLRDPOSTINC |
2073 movff TABLAT,md_temp | |
126 | 2074 _endasm |
2075 } // else | |
167 | 2076 |
2077 md_buffer[md_i] = md_temp; | |
186 | 2078 md_state[md_i+16] = md_temp; |
2079 md_state[md_i+32] = (unsigned char)(md_temp ^ md_state[md_i]); | |
126 | 2080 } // for md_i 16 |
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|
2081 |
126 | 2082 for (md_i=0;md_i<18;md_i++) |
2083 { | |
2084 for (md_j=0;md_j<48;md_j++) | |
2085 { | |
167 | 2086 md_state[md_j] ^= md_pi_subst[md_t]; |
126 | 2087 md_t = md_state[md_j]; |
2088 } // for md_j 48 | |
2089 md_t = (unsigned char)(md_t+1); | |
2090 } // for md_i 18 | |
164 | 2091 md_t = char_O_hash[15]; |
711
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diff
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|
2092 |
126 | 2093 for (md_i=0;md_i<16;md_i++) |
2094 { | |
167 | 2095 char_O_hash[md_i] ^= md_pi_subst[(md_buffer[md_i] ^ md_t)]; |
164 | 2096 md_t = char_O_hash[md_i]; |
126 | 2097 } // for md_i 16 |
2098 } // for md_pointer | |
116 | 2099 } // void deco_hash(void) |
184 | 2100 #endif |
116 | 2101 |
167 | 2102 ////////////////////////////////////////////////////////////////////////////// |
2103 // deco_clear_CNS_fraction | |
2104 // | |
116 | 2105 // new in v.101 |
167 | 2106 // |
116 | 2107 void deco_clear_CNS_fraction(void) |
2108 { | |
122
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|
2109 RESET_C_STACK |
237 | 2110 |
126 | 2111 CNS_fraction = 0.0; |
2112 char_O_CNS_fraction = 0; | |
167 | 2113 } |
116 | 2114 |
167 | 2115 ////////////////////////////////////////////////////////////////////////////// |
2116 // deco_calc_CNS_fraction | |
2117 // | |
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2118 // Input: char_I_actual_ppO2 : Current condition (in decibars). |
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|
2119 // char_I_step_is_1min : use 1min or 10min steps instead of 2sec. |
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|
2120 // CNS_fraction : velue before period. |
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|
2121 // Output: CNS_fraction, char_O_CNS_fraction |
167 | 2122 // |
116 | 2123 void deco_calc_CNS_fraction(void) |
2124 { | |
711
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diff
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|
2125 overlay float time_factor = 1.0f; |
126 | 2126 RESET_C_STACK |
167 | 2127 |
471 | 2128 assert( 0.0 <= CNS_fraction && CNS_fraction <= 2.56 ); |
237 | 2129 assert( char_I_actual_ppO2 > 15 ); |
2130 | |
439
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|
2131 if( char_I_step_is_1min == 1 ) |
292 | 2132 time_factor = 30.0f; |
439
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|
2133 else if( char_I_step_is_1min == 2 ) |
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|
2134 time_factor = 300.0f; |
710 | 2135 //------------------------------------------------------------------------ |
2136 // Don't increase CNS below 0.5 bar, but keep it steady. | |
126 | 2137 if (char_I_actual_ppO2 < 50) |
292 | 2138 ; // no changes |
710 | 2139 //------------------------------------------------------------------------ |
2140 // Below (and including) 1.60 bar | |
711
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diff
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|
2141 else if (char_I_actual_ppO2 < 61) |
710 | 2142 CNS_fraction += time_factor/(-533.07 * char_I_actual_ppO2 + 54000.0); |
711
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diff
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|
2143 else if (char_I_actual_ppO2 < 71) |
710 | 2144 CNS_fraction += time_factor/(-444.22 * char_I_actual_ppO2 + 48600.0); |
711
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diff
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|
2145 else if (char_I_actual_ppO2 < 81) |
710 | 2146 CNS_fraction += time_factor/(-355.38 * char_I_actual_ppO2 + 42300.0); |
711
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diff
changeset
|
2147 else if (char_I_actual_ppO2 < 91) |
710 | 2148 CNS_fraction += time_factor/(-266.53 * char_I_actual_ppO2 + 35100.0); |
711
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diff
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|
2149 else if (char_I_actual_ppO2 < 111) |
710 | 2150 CNS_fraction += time_factor/(-177.69 * char_I_actual_ppO2 + 27000.0); |
711
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diff
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|
2151 else if (char_I_actual_ppO2 < 152) |
710 | 2152 CNS_fraction += time_factor/( -88.84 * char_I_actual_ppO2 + 17100.0); |
711
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diff
changeset
|
2153 else if (char_I_actual_ppO2 < 167) |
710 | 2154 CNS_fraction += time_factor/(-222.11 * char_I_actual_ppO2 + 37350.0); |
2155 //------------------------------------------------------------------------ | |
2156 // Arieli et all.(2002): Modeling pulmonary and CNS O2 toxicity: | |
2157 // J Appl Physiol 92: 248–256, 2002, doi:10.1152/japplphysiol.00434.2001 | |
2158 // Formula (A1) based on value for 1.55 and c=20 | |
2159 // example calculation: Sqrt((1.7/1.55)^20)*0.000404 | |
711
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parents:
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diff
changeset
|
2160 else if (char_I_actual_ppO2 < 172) |
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parents:
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diff
changeset
|
2161 CNS_fraction += time_factor*0.00102; |
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diff
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|
2162 else if (char_I_actual_ppO2 < 177) |
292 | 2163 CNS_fraction += time_factor*0.00136; |
711
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diff
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|
2164 else if (char_I_actual_ppO2 < 182) |
292 | 2165 CNS_fraction += time_factor*0.00180; |
711
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|
2166 else if (char_I_actual_ppO2 < 187) |
292 | 2167 CNS_fraction += time_factor*0.00237; |
711
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diff
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|
2168 else if (char_I_actual_ppO2 < 192) |
292 | 2169 CNS_fraction += time_factor*0.00310; |
711
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diff
changeset
|
2170 else if (char_I_actual_ppO2 < 198) |
292 | 2171 CNS_fraction += time_factor*0.00401; |
711
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changeset
|
2172 else if (char_I_actual_ppO2 < 203) |
292 | 2173 CNS_fraction += time_factor*0.00517; |
711
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changeset
|
2174 else if (char_I_actual_ppO2 < 233) |
292 | 2175 CNS_fraction += time_factor*0.0209; |
126 | 2176 else |
292 | 2177 CNS_fraction += time_factor*0.0482; // value for 2.5 |
116 | 2178 |
514 | 2179 if( CNS_fraction > 2.5 ) |
439
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BUGFIX: Decoplanner accumulates CNS during ascent (bug #55)
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|
2180 CNS_fraction = 2.55; |
514 | 2181 if( CNS_fraction < 0.0 ) |
126 | 2182 CNS_fraction = 0.0; |
2183 | |
443
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BUGFIX: infinite loop for Decoplaner's CNS in CCR mode.
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diff
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|
2184 char_O_CNS_fraction = (unsigned char)(100.0 * CNS_fraction + 0.5); |
167 | 2185 } |
116 | 2186 |
167 | 2187 ////////////////////////////////////////////////////////////////////////////// |
439
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2188 // deco_calc_CNS_planning |
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2189 // |
511
2a6293641d51
NEW NDL NDL faster/more precise simu (but no closed formula for trimix).
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|
2190 // Compute CNS during predicted ascent. |
488 | 2191 // |
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2192 // Note: Needs a call to deco_push_tissues_to_vault(), |
488 | 2193 // deco_pull_tissues_from_vault() to avoid trashing everything... |
2194 // | |
2195 // Input: CNS_fraction, char_O_deco_time[], char_O_deco_depth[] | |
2196 // Output: CNS_fraction, char_O_CNS_fraction | |
2197 // | |
439
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2198 void deco_calc_CNS_planning(void) |
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2199 { |
490
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|
2200 overlay unsigned char backup_gas_last_depth; |
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|
2201 overlay unsigned char backup_gas_last_used; |
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2202 overlay unsigned short backup_dive_mins; |
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|
2203 overlay unsigned char backup_actual_ppO2; |
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|
2204 |
439
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2205 RESET_C_STACK |
490
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|
2206 |
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2207 // Backup state machine |
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2208 backup_gas_last_depth = sim_gas_last_depth; |
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2209 backup_gas_last_used = sim_gas_last_used; |
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2210 backup_dive_mins = sim_dive_mins; |
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2211 backup_actual_ppO2 = char_I_actual_ppO2; |
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2212 |
439
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2213 // Uses 1min CNS period: |
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2214 char_I_step_is_1min = 1; |
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2215 |
439
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2216 //---- Retrieve bottom Gas used, and set variables. |
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2217 sim_gas_last_used = char_I_first_gas; |
443
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2218 sim_gas_last_depth = 0; // Surface gas marker. |
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2219 gas_switch_set(); // Sets initial calc_N2/He_ratio |
439
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2220 |
743 | 2221 //---- CCR mode : do the full CNS at once -------------------------------- |
439
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2222 if( char_I_const_ppO2 != 0 ) |
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2223 { |
443
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2224 overlay unsigned short t; // Needs 16bits here ! |
439
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2225 char_I_actual_ppO2 = char_I_const_ppO2; |
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2226 for(t=0; t<int_O_ascenttime; ++t) |
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2227 deco_calc_CNS_fraction(); |
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2228 } |
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2229 else //---- OC mode : have to follow all gas switches... ----------------- |
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2230 { |
443
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|
2231 overlay unsigned char i = 0; // Decostop loop counter |
439
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2232 overlay float actual_ppO2; |
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2233 overlay unsigned char time, t; |
563 | 2234 overlay unsigned char deepest_first = (read_custom_function(54) == 0); |
439
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2235 |
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2236 //---- Ascent to surface delay |
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2237 // NOTE: count as if time is spent with bottom pressure, |
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2238 // 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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|
2239 actual_ppO2 = (pres_surface + char_I_bottom_depth * METER_TO_BAR) |
439
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2240 * (1.0 - calc_N2_ratio - calc_He_ratio); |
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2241 if( actual_ppO2 < 0.0 ) actual_ppO2 = 0.0; |
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2242 if( actual_ppO2 > 2.50 ) actual_ppO2 = 2.55; |
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2243 char_I_actual_ppO2 = (unsigned char)(100.0 * actual_ppO2 + 0.5); |
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|
2244 |
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2245 // Ascent time (rounded up): |
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|
2246 time = (unsigned char)(0.1 * char_I_bottom_depth + 0.5); |
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2247 |
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2248 for(t=0; t<time; ++t) |
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2249 { |
439
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2250 deco_calc_CNS_fraction(); |
490
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|
2251 sim_dive_mins++; |
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2252 } |
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2253 |
563 | 2254 //---- Do all further stops ------------------------------------------ |
439
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2255 for(i=0; i<NUM_STOPS; ++i) |
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2256 { |
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|
2257 overlay unsigned char stop_gas; |
563 | 2258 |
2259 //---- Get next stop, possibly in reverse order ------------------ | |
2260 if( deepest_first ) | |
2261 { | |
2262 time = char_O_deco_time[i]; | |
2263 temp_depth_limit = char_O_deco_depth[i]; | |
766
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2264 stop_gas = char_O_deco_gas[i]; |
563 | 2265 } |
2266 else | |
2267 { | |
2268 time = char_O_deco_time[(NUM_STOPS-1)-i]; | |
2269 temp_depth_limit = char_O_deco_depth[(NUM_STOPS-1)-i]; | |
766
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2270 stop_gas = char_O_deco_gas[(NUM_STOPS-1)-i]; |
563 | 2271 } |
2272 if( time == 0 ) continue; | |
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|
2273 |
563 | 2274 //---- Gas Switch ? ---------------------------------------------- |
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|
2275 if( stop_gas != sim_gas_last_used ) |
563 | 2276 { |
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2277 sim_gas_last_depth = deco_gas_change[stop_gas-1]; |
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|
2278 sim_gas_last_used = stop_gas; |
563 | 2279 gas_switch_set(); |
2280 } | |
2281 | |
2282 //---- Convert Depth and N2_ratio to ppO2 ------------------------ | |
541
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BUGFIX decoplan: ppO2 for CNS is inspired, alveolar (ie. no ppWater correction).
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|
2283 actual_ppO2 = (pres_surface + temp_depth_limit * METER_TO_BAR) |
439
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2284 * (1.0 - calc_N2_ratio - calc_He_ratio); |
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2285 if( actual_ppO2 < 0.0 ) actual_ppO2 = 0.0; |
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|
2286 if( actual_ppO2 > 2.50 ) actual_ppO2 = 2.55; |
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2287 char_I_actual_ppO2 = (unsigned char)(100.0 * actual_ppO2 + 0.5); |
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2288 |
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2289 //---- Apply the stop |
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2290 for(t=0; t<time; ++t) |
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|
2291 { |
439
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|
2292 deco_calc_CNS_fraction(); |
490
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|
2293 sim_dive_mins++; |
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|
2294 } |
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|
2295 } |
488 | 2296 } |
2297 | |
563 | 2298 //---- Back to normal mode... -------------------------------------------- |
488 | 2299 char_I_step_is_1min = 0; |
490
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|
2300 sim_gas_last_depth = backup_gas_last_depth; |
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|
2301 sim_gas_last_used = backup_gas_last_used; |
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2302 sim_dive_mins = backup_dive_mins; |
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BUGFIX (minor) deco_calc_CNS_planning should save ppO2 and gas switch history.
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|
2303 char_I_actual_ppO2 = backup_actual_ppO2; |
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|
2304 } |
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2305 |
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|
2306 ////////////////////////////////////////////////////////////////////////////// |
167 | 2307 // deco_calc_CNS_decrease_15min |
2308 // | |
116 | 2309 // new in v.101 |
167 | 2310 // |
116 | 2311 // calculates the half time of 90 minutes in 6 steps of 15 min |
200 | 2312 // (Used in sleepmode, for low battery mode). |
167 | 2313 // |
116 | 2314 // Output: char_O_CNS_fraction |
2315 // Uses and Updates: CNS_fraction | |
167 | 2316 // |
116 | 2317 void deco_calc_CNS_decrease_15min(void) |
2318 { | |
237 | 2319 RESET_C_STACK |
514 | 2320 assert( 0.0 <= CNS_fraction && CNS_fraction <= 2.56 ); |
237 | 2321 |
126 | 2322 CNS_fraction = 0.890899 * CNS_fraction; |
514 | 2323 char_O_CNS_fraction = (unsigned char)(CNS_fraction * 100.0 + 0.5); |
167 | 2324 } |
116 | 2325 |
167 | 2326 ////////////////////////////////////////////////////////////////////////////// |
2327 // deco_calc_percentage | |
2328 // | |
116 | 2329 // new in v.101 |
167 | 2330 // |
116 | 2331 // calculates int_I_temp * char_I_temp / 100 |
2332 // output is int_I_temp | |
200 | 2333 // |
2334 // Used to compute NoFly remaining time. | |
222
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2335 // |
116 | 2336 void deco_calc_percentage(void) |
2337 { | |
122
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FIX again reset C data stack and frame pointer when entering C code.
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|
2338 RESET_C_STACK |
222
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2339 |
237 | 2340 assert( 60 <= char_I_temp && char_I_temp <= 100 ); |
564 | 2341 assert( int_I_temp < 5760 ); // Less than 4 days = 96h... |
237 | 2342 |
222
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Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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2343 int_I_temp = (unsigned short)(((float)int_I_temp * (float)char_I_temp) * 0.01 ); |
237 | 2344 |
554
896b6346ccd2
CHANGE: Allow up to 96h desat when computing NoFly (OSTC Planner).
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|
2345 assert( int_I_temp < 5760 ); // Less than 96h too... |
222
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Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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2346 } |
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2347 |
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2348 |
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2349 ////////////////////////////////////////////////////////////////////////////// |
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2350 // deco_gas_volumes |
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2351 // |
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2352 // new in v.111 |
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2353 // |
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2354 // calculates volumes for each gas. |
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2355 // |
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2356 // 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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2357 // Gas list. |
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BUGFIX Gas Usage when first gas is not #1 (bug BB22).
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2358 // char_I_first_gas is the bottom gas. |
222
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2359 // decoplan (char_O_deco_depth, char_O_deco_time). |
234
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BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
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diff
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|
2360 // CF#54 == TRUE if shallowest stop first. |
478
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New SAC (CF56/CF57) in 5..50 l/min range (no more decimal).
JeanDo
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471
diff
changeset
|
2361 // 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
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471
diff
changeset
|
2362 // CF#57 == deco liters/minutes (5 .. 50) or bar/min. |
224 | 2363 // 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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218
diff
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|
2364 // |
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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diff
changeset
|
2365 void deco_gas_volumes(void) |
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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parents:
218
diff
changeset
|
2366 { |
338 | 2367 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
|
2368 overlay float bottom_usage, deco_usage; |
234
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
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diff
changeset
|
2369 overlay unsigned char i, deepest_first; |
646 | 2370 overlay unsigned char gas, depth; |
783
e57e8045527d
FIX: Gas volume computation when using several travel mix.
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parents:
782
diff
changeset
|
2371 overlay unsigned char lastGasStop = 255; |
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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diff
changeset
|
2372 RESET_C_STACK |
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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diff
changeset
|
2373 |
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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diff
changeset
|
2374 //---- initialize with bottom consumption -------------------------------- |
338 | 2375 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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237
diff
changeset
|
2376 volumes[i] = 0.0; |
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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|
2377 |
338 | 2378 assert(1 <= char_I_first_gas && char_I_first_gas <= NUM_GAS); |
241 | 2379 gas = char_I_first_gas - 1; |
2380 | |
478
fd8266b511cc
New SAC (CF56/CF57) in 5..50 l/min range (no more decimal).
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471
diff
changeset
|
2381 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
|
2382 if( char_I_const_ppO2 == 0 && bottom_usage > 0.0 ) |
265 | 2383 volumes[gas] |
2384 = (char_I_bottom_depth*0.1 + 1.0) // Use Psurface = 1.0 bar. | |
2385 * char_I_bottom_time // in minutes. | |
2386 * bottom_usage; // In liter/minutes. | |
579
fff1d38625f0
BUGFIX: GasVolumes should check for a gas switch before the first stop.
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parents:
568
diff
changeset
|
2387 |
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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diff
changeset
|
2388 //---- Ascent usage ------------------------------------------------------ |
234
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
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diff
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|
2389 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
|
2390 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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diff
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|
2391 |
646 | 2392 depth = char_I_bottom_depth; |
222
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Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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diff
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|
2393 |
338 | 2394 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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diff
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|
2395 { |
658
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2396 overlay unsigned char newDepth, time; |
234
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BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
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diff
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|
2397 |
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diff
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|
2398 // Manage stops in reverse order (CF#54) |
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BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
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diff
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|
2399 if( deepest_first ) |
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BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
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diff
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|
2400 { |
241 | 2401 time = char_O_deco_time[i]; |
234
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diff
changeset
|
2402 if( time == 0 ) break; // End of table: done. |
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diff
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|
2403 |
766
3b1af9891019
BUGFIX: CNS calculation in decoplan should track gas (no marked changes anymore)
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757
diff
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|
2404 newDepth = char_O_deco_depth[i]; |
234
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diff
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|
2405 } |
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diff
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|
2406 else |
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BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
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diff
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|
2407 { |
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BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
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diff
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|
2408 time = char_O_deco_time[31-i]; |
658
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BUGFIX Gas volumes when many tanks and stops.
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parents:
646
diff
changeset
|
2409 if( time == 0 ) continue; // not yet: still search table. |
234
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|
2410 |
766
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diff
changeset
|
2411 newDepth = char_O_deco_depth[31-i]; |
234
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diff
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|
2412 } |
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|
2413 |
783
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diff
changeset
|
2414 //---- Gas switch during or before this stop -------------------------- |
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FIX: Gas volume computation when using several travel mix.
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diff
changeset
|
2415 for(;;) |
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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218
diff
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|
2416 { |
658
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
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parents:
646
diff
changeset
|
2417 overlay unsigned char newGas = 0; |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2418 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
|
2419 overlay unsigned char j; |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
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parents:
646
diff
changeset
|
2420 |
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BUGFIX Gas volumes when many tanks and stops.
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parents:
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diff
changeset
|
2421 for(j=0; j<NUM_GAS; ++j) |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
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646
diff
changeset
|
2422 { |
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BUGFIX Gas volumes when many tanks and stops.
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parents:
646
diff
changeset
|
2423 // Skip gas without changing depth: |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2424 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
|
2425 continue; |
783
e57e8045527d
FIX: Gas volume computation when using several travel mix.
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782
diff
changeset
|
2426 // Select gas changed between [newDepth .. lastGasStop[ |
e57e8045527d
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782
diff
changeset
|
2427 // Note that <= means changing gas at BEGINNING of this stop. |
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782
diff
changeset
|
2428 // Note that < means we cant use the same gas twice |
658
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2429 if( newDepth <= char_I_deco_gas_change[j] |
783
e57e8045527d
FIX: Gas volume computation when using several travel mix.
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diff
changeset
|
2430 && char_I_deco_gas_change[j] < lastGasStop ) |
646 | 2431 { |
658
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2432 // 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
|
2433 if( char_I_deco_gas_change[j] >= newStop ) |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
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parents:
646
diff
changeset
|
2434 { |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2435 newGas = j; |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2436 newStop = char_I_deco_gas_change[j]; |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
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parents:
646
diff
changeset
|
2437 } |
646 | 2438 } |
658
75dc320f4681
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parents:
646
diff
changeset
|
2439 } |
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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diff
changeset
|
2440 |
783
e57e8045527d
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782
diff
changeset
|
2441 // Did we find something ? |
e57e8045527d
FIX: Gas volume computation when using several travel mix.
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parents:
782
diff
changeset
|
2442 if( !newStop ) |
e57e8045527d
FIX: Gas volume computation when using several travel mix.
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782
diff
changeset
|
2443 break; |
646 | 2444 |
783
e57e8045527d
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782
diff
changeset
|
2445 //---- usage BEFORE gas switch (if any), at 10m/min : |
e57e8045527d
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JeanDo
parents:
782
diff
changeset
|
2446 if( deco_usage > 0.0 && depth > newStop ) |
e57e8045527d
FIX: Gas volume computation when using several travel mix.
JeanDo
parents:
782
diff
changeset
|
2447 // Plus usage during ascent to the next stop, at 10m/min. |
e57e8045527d
FIX: Gas volume computation when using several travel mix.
JeanDo
parents:
782
diff
changeset
|
2448 volumes[gas] += ((depth+newStop)*0.05 + 1.0) // average depth --> bar. |
e57e8045527d
FIX: Gas volume computation when using several travel mix.
JeanDo
parents:
782
diff
changeset
|
2449 * (depth-newStop)*0.1 // metre --> min |
e57e8045527d
FIX: Gas volume computation when using several travel mix.
JeanDo
parents:
782
diff
changeset
|
2450 * deco_usage; |
e57e8045527d
FIX: Gas volume computation when using several travel mix.
JeanDo
parents:
782
diff
changeset
|
2451 |
e57e8045527d
FIX: Gas volume computation when using several travel mix.
JeanDo
parents:
782
diff
changeset
|
2452 //---- Do gas switch: |
e57e8045527d
FIX: Gas volume computation when using several travel mix.
JeanDo
parents:
782
diff
changeset
|
2453 gas = newGas; |
e57e8045527d
FIX: Gas volume computation when using several travel mix.
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782
diff
changeset
|
2454 |
e57e8045527d
FIX: Gas volume computation when using several travel mix.
JeanDo
parents:
782
diff
changeset
|
2455 lastGasStop = newStop; // Mark last used gas |
e57e8045527d
FIX: Gas volume computation when using several travel mix.
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parents:
782
diff
changeset
|
2456 if( newStop < depth ) // ascent to gas switch, |
658
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
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parents:
646
diff
changeset
|
2457 depth = newStop; |
75dc320f4681
BUGFIX Gas volumes when many tanks and stops.
JeanDo <jd.gascuel@free.fr>
parents:
646
diff
changeset
|
2458 } |
646 | 2459 |
783
e57e8045527d
FIX: Gas volume computation when using several travel mix.
JeanDo
parents:
782
diff
changeset
|
2460 //---- usage AFTER gas switch (if any), at 10m/min : |
646 | 2461 if( depth > newDepth ) |
2462 volumes[gas] += ((depth+newDepth)*0.05 + 1.0) // average depth --> bar. | |
2463 * (depth-newDepth)*0.1 // metre --> min | |
2464 * deco_usage; | |
2465 | |
783
e57e8045527d
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parents:
782
diff
changeset
|
2466 //---- Do stop: |
646 | 2467 depth = newDepth; |
2468 | |
2469 // Usage at stop: | |
478
fd8266b511cc
New SAC (CF56/CF57) in 5..50 l/min range (no more decimal).
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parents:
471
diff
changeset
|
2470 if( deco_usage > 0.0 ) |
265 | 2471 volumes[gas] += (depth*0.1 + 1.0) // depth --> bar. |
2472 * time // in minutes. | |
646 | 2473 * deco_usage; // in xxx / min @ 1bar. |
265 | 2474 else |
2475 volumes[gas] = 65535.0; | |
222
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Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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218
diff
changeset
|
2476 } |
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Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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218
diff
changeset
|
2477 |
646 | 2478 // From last stop to surface |
2479 if( deco_usage > 0.0 ) | |
2480 volumes[gas] += (depth*0.05 + 1.0) // avg depth --> bar. | |
2481 * depth * 0.1 // time to surface, in minutes. | |
2482 * deco_usage; // in xxx / min @ 1bar. | |
2483 | |
222
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Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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diff
changeset
|
2484 //---- convert results for the ASM interface ----------------------------- |
338 | 2485 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
|
2486 if( volumes[i] > 65534.0 ) |
224 | 2487 int_O_gas_volumes[i] = 65535; |
222
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Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
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diff
changeset
|
2488 else |
441
4826dd98514b
NEW: Decoplanner OC volumes in liters (or bars), up to 65000.
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diff
changeset
|
2489 int_O_gas_volumes[i] = (unsigned short)(volumes[i] + 0.5); |
116 | 2490 } |
2491 | |
167 | 2492 ////////////////////////////////////////////////////////////////////////////// |
2493 | |
116 | 2494 void deco_push_tissues_to_vault(void) |
2495 { | |
167 | 2496 overlay unsigned char x; |
122
3003a8040b78
FIX again reset C data stack and frame pointer when entering C code.
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diff
changeset
|
2497 RESET_C_STACK |
167 | 2498 |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
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parents:
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diff
changeset
|
2499 cns_vault = CNS_fraction; |
697 | 2500 low_depth_vault = low_depth; |
2501 | |
711
f555590f1419
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parents:
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diff
changeset
|
2502 for (x=0;x<NUM_COMP;x++) |
339 | 2503 { |
711
f555590f1419
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parents:
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diff
changeset
|
2504 pres_tissue_N2_vault[x] = pres_tissue_N2[x]; |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
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parents:
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diff
changeset
|
2505 pres_tissue_He_vault[x] = pres_tissue_He[x]; |
339 | 2506 } |
116 | 2507 } |
167 | 2508 |
116 | 2509 void deco_pull_tissues_from_vault(void) |
2510 { | |
167 | 2511 overlay unsigned char x; |
122
3003a8040b78
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diff
changeset
|
2512 RESET_C_STACK |
167 | 2513 |
711
f555590f1419
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parents:
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diff
changeset
|
2514 for (x=0; x<NUM_COMP; x++) |
339 | 2515 { |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
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parents:
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diff
changeset
|
2516 pres_tissue_N2[x] = pres_tissue_N2_vault[x]; |
f555590f1419
minor cleanups for CNS/NOAA bugfix.
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parents:
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diff
changeset
|
2517 pres_tissue_He[x] = pres_tissue_He_vault[x]; |
339 | 2518 } |
711
f555590f1419
minor cleanups for CNS/NOAA bugfix.
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parents:
710
diff
changeset
|
2519 |
292 | 2520 // Restore both CNS variable, too. |
2521 CNS_fraction = cns_vault; | |
514 | 2522 char_O_CNS_fraction = (unsigned char)(CNS_fraction * 100.0 + 0.5); |
697 | 2523 |
2524 // GF history too: | |
2525 low_depth = low_depth_vault; | |
2526 locked_GF_step = GF_delta / low_depth; | |
116 | 2527 } |
2528 | |
167 | 2529 ////////////////////////////////////////////////////////////////////////////// |
2530 // | |
184 | 2531 #ifndef CROSS_COMPILE |
2532 void main() {} | |
2533 #endif |