Mercurial > public > mk2
annotate code_part1/OSTC_code_c_part2/p2_deco.c @ 338:b75564fb3d4b
Optimizing access to B?hlmann coefficient (speed).
Define number of compartiments, stops and gases.
| author | JeanDo |
|---|---|
| date | Tue, 17 May 2011 15:56:09 +0200 |
| parents | 4ccdc72ec0e5 |
| children | cb77d1fa4535 |
| rev | line source |
|---|---|
| 116 | 1 // ************************************************************** |
| 2 // p2_deco.c | |
| 3 // | |
| 4 // Created on: 12.05.2009 | |
| 5 // Author: chsw | |
| 6 // | |
| 7 // ************************************************************** | |
| 8 | |
| 9 ////////////////////////////////////////////////////////////////////////////// | |
| 10 // OSTC - diving computer code | |
| 11 // Copyright (C) 2008 HeinrichsWeikamp GbR | |
| 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
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
69 // 2011/01/25: [jDG] Fusion deco array for both models. |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
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
4310ab395dbe
Keep low_depth in float 32bits (w/o rounding) for a better stability.
JeanDo
parents:
270
diff
changeset
|
73 // 2011/02/15: [jDG] Fixed inconsistencies introduced by gas switch delays. |
|
4310ab395dbe
Keep low_depth in float 32bits (w/o rounding) for a better stability.
JeanDo
parents:
270
diff
changeset
|
74 // 2011/03/21: [jDG] Added gas consumption (CF56 & CF57) evaluation for OCR mode. |
|
293
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
JeanDo
parents:
292
diff
changeset
|
75 // 2011/04/10: [jDG] Use timer TMR3 to limit loops in calc_hauptroutine_calc_deco(). |
|
275
4310ab395dbe
Keep low_depth in float 32bits (w/o rounding) for a better stability.
JeanDo
parents:
270
diff
changeset
|
76 // 2011/04/15: [jDG] Store low_depth in 32bits (w/o rounding), for a better stability. |
|
293
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
JeanDo
parents:
292
diff
changeset
|
77 // 2011/04/25: [jDG] Added 1mn mode for CNS calculation, to allow it for decoplanning. |
|
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
JeanDo
parents:
292
diff
changeset
|
78 // 2011/04/27: [jDG] Fixed char_O_gradient_factor calculation when model uses gradient-factor. |
|
334
4ccdc72ec0e5
BUGFIX minor error in gas-switch algo (spurious surface decostop rarely added).
JeanDo
parents:
326
diff
changeset
|
79 // 2011/05/02: [jDG] Added "Future TTS" function (CF58). |
| 338 | 80 // 2011/05/17: [jDG] Various cleanups. |
| 116 | 81 // |
| 167 | 82 // TODO: |
| 83 // + Allow to abort MD2 calculation (have to restart next time). | |
| 84 // | |
| 85 // Literature: | |
| 200 | 86 // Bühlmann, Albert: Tauchmedizin; 4. Auflage [2002]; |
| 116 | 87 // 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 |
| 88 // Morrison, Stuart; 2000; DIY DECOMPRESSION; http://www.lizardland.co.uk/DIYDeco.html | |
| 89 // Balthasar, Steffen; Dekompressionstheorie I: Neo Haldane Modelle; http://www.txfreak.de/dekompressionstheorie_1.pdf | |
| 90 // Baker, Erik C.; Clearing Up The Confusion About "Deep Stops" | |
| 91 // Baker, Erik C.; Understanding M-values; http://www.txfreak.de/understanding_m-values.pdf | |
| 167 | 92 // |
| 93 // | |
| 116 | 94 |
| 95 // ********************* | |
| 96 // ** I N C L U D E S ** | |
| 97 // ********************* | |
| 98 #include <math.h> | |
| 167 | 99 |
| 192 | 100 // *********************************************** |
| 101 // ** V A R I A B L E S D E F I N I T I O N S ** | |
| 102 // *********************************************** | |
| 103 | |
| 104 #include "p2_definitions.h" | |
|
275
4310ab395dbe
Keep low_depth in float 32bits (w/o rounding) for a better stability.
JeanDo
parents:
270
diff
changeset
|
105 #define TEST_MAIN |
| 192 | 106 #include "shared_definitions.h" |
| 107 | |
| 200 | 108 // Water vapour partial pressure in the lumb. |
| 317 | 109 #define ppWater 0.0627 |
| 110 #define METER_TO_BAR 0.09985 | |
| 111 #define BAR_TO_METER 10.0150 // (1.0/METER_TO_BAR) | |
| 200 | 112 |
| 167 | 113 // ************************* |
| 114 // ** P R O T O T Y P E S ** | |
| 115 // ************************* | |
| 116 | |
| 117 static void calc_hauptroutine(void); | |
| 118 static void calc_nullzeit(void); | |
| 119 | |
| 192 | 120 static void calc_tissue(PARAMETER unsigned char period); |
| 258 | 121 static void calc_limit(void); |
| 192 | 122 |
| 167 | 123 static void clear_tissue(void); |
| 124 static void calc_ascenttime(void); | |
| 125 static void update_startvalues(void); | |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
126 static void clear_deco_table(void); |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
127 static void update_deco_table(void); |
| 192 | 128 |
| 129 static void backup_sim_pres_tissue(void); | |
| 130 static void restore_sim_pres_tissue(void); | |
| 131 static void sim_tissue(PARAMETER unsigned char period); | |
| 132 static void sim_limit(PARAMETER float GF_current); | |
|
312
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
133 static void sim_extra_time(void); |
|
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
134 |
| 167 | 135 static void calc_gradient_factor(void); |
| 136 static void calc_wo_deco_step_1_min(void); | |
| 137 | |
| 138 static void calc_hauptroutine_data_input(void); | |
| 139 static void calc_hauptroutine_update_tissues(void); | |
| 140 static void calc_hauptroutine_calc_deco(void); | |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
141 static void sim_ascent_to_first_stop(void); |
| 167 | 142 |
| 241 | 143 static unsigned char gas_switch_deepest(void); |
| 144 static void gas_switch_set(void); | |
| 217 | 145 |
| 241 | 146 static unsigned char calc_nextdecodepth(void); |
| 116 | 147 |
| 200 | 148 //---- Bank 4 parameters ----------------------------------------------------- |
| 163 | 149 #pragma udata bank4=0x400 |
| 116 | 150 |
| 151 static float temp_limit; | |
| 152 static float GF_low; | |
| 153 static float GF_high; | |
| 154 static float GF_delta; | |
|
275
4310ab395dbe
Keep low_depth in float 32bits (w/o rounding) for a better stability.
JeanDo
parents:
270
diff
changeset
|
155 static float low_depth; // Depth of deepest stop |
| 192 | 156 static float locked_GF_step; // GF_delta / low_depth |
| 157 | |
| 158 static unsigned char temp_depth_limit; | |
| 171 | 159 |
| 192 | 160 // Simulation context: used to predict ascent. |
| 161 static unsigned char sim_lead_tissue_no; // Leading compatiment number. | |
| 162 static float sim_lead_tissue_limit; // Buhlmann tolerated pressure. | |
| 116 | 163 |
| 192 | 164 // Real context: what we are doing now. |
| 165 static float calc_lead_tissue_limit; // | |
| 116 | 166 |
| 338 | 167 static unsigned char internal_deco_time[NUM_STOPS]; |
| 168 static unsigned char internal_deco_depth[NUM_STOPS]; | |
| 116 | 169 |
| 170 static float cns_vault; | |
| 338 | 171 static float pres_tissue_vault[2*NUM_COMP]; |
| 116 | 172 |
| 163 | 173 //---- Bank 5 parameters ----------------------------------------------------- |
| 174 #pragma udata bank5=0x500 | |
| 175 | |
| 167 | 176 static unsigned char ci; |
| 116 | 177 static float pres_respiration; |
| 178 static float pres_surface; | |
| 179 static float temp_deco; | |
| 236 | 180 static float ppN2; |
| 200 | 181 static float ppHe; |
| 116 | 182 static float temp_tissue; |
| 200 | 183 static float N2_ratio; // Breathed gas nitrogen ratio. |
| 184 static float He_ratio; // Breathed gas helium ratio. | |
| 185 static float var_N2_a; // Bühlmann a, for current N2 tissue. | |
| 186 static float var_N2_b; // Bühlmann b, for current N2 tissue. | |
| 187 static float var_He_a; // Bühlmann a, for current He tissue. | |
| 188 static float var_He_b; // Bühlmann b, for current He tissue. | |
| 189 static float var_N2_e; // Exposition, for current N2 tissue. | |
| 190 static float var_He_e; // Exposition, for current He tissue. | |
| 116 | 191 |
| 338 | 192 static float pres_diluent; // new in v.101 |
| 193 static float const_ppO2; // new in v.101 | |
| 116 | 194 |
| 241 | 195 static unsigned char sim_gas_last_depth; // Depth of last used gas, to detected a gas switch. |
| 196 static unsigned char sim_gas_last_used; // Number of last used gas, to detected a gas switch. | |
| 203 | 197 static unsigned short sim_gas_delay; // Time of gas-switch-stop ends [min on dive]. |
| 198 static unsigned short sim_dive_mins; // Simulated dive time. | |
| 200 | 199 static float calc_N2_ratio; // Simulated (switched) nitrogen ratio. |
| 200 static float calc_He_ratio; // Simulated (switched) helium ratio. | |
| 201 static float CNS_fraction; // new in v.101 | |
| 202 static float float_saturation_multiplier; // new in v.101 | |
| 203 static float float_desaturation_multiplier; // new in v.101 | |
| 338 | 204 static float float_deco_distance; // new in v.101 |
| 205 static char flag_in_divemode; // new in v.108 | |
| 167 | 206 |
| 338 | 207 static unsigned char deco_gas_change[NUM_GAS]; // new in v.109 |
| 167 | 208 |
| 163 | 209 //---- Bank 6 parameters ----------------------------------------------------- |
| 210 #pragma udata bank6=0x600 | |
| 116 | 211 |
| 338 | 212 float pres_tissue[2*NUM_COMP]; |
| 116 | 213 |
| 163 | 214 //---- Bank 7 parameters ----------------------------------------------------- |
| 215 #pragma udata bank7=0x700 | |
| 216 | |
| 338 | 217 float sim_pres_tissue[2*NUM_COMP]; // 32 floats = 128 bytes. |
| 218 static float sim_pres_tissue_backup[2*NUM_COMP]; | |
| 116 | 219 |
| 163 | 220 //---- Bank 8 parameters ----------------------------------------------------- |
| 116 | 221 #pragma udata bank8=0x800 |
| 163 | 222 |
| 116 | 223 static char md_pi_subst[256]; |
|
122
3003a8040b78
FIX again reset C data stack and frame pointer when entering C code.
JeanDo
parents:
116
diff
changeset
|
224 #define C_STACK md_pi_subst // Overlay C-code data stack here, too. |
| 116 | 225 |
| 163 | 226 //---- Bank 9 parameters ----------------------------------------------------- |
| 167 | 227 #pragma udata bank9=0x900 |
| 116 | 228 |
| 163 | 229 static char md_state[48]; // DONT MOVE !! // has to be at the beginning of bank 9 for the asm code!!! |
| 116 | 230 |
| 164 | 231 // internal, dbg: |
| 167 | 232 static unsigned char DBG_char_I_deco_model; // new in v.108. |
| 164 | 233 static unsigned char DBG_char_I_depth_last_deco; // new in v.108 |
| 212 | 234 static unsigned char DBG_deco_gas_change; // new in v.108 |
| 224 | 235 static unsigned char DBG_deco_N2_ratio; // new in v.108 |
| 236 static unsigned char DBG_deco_He_ratio; // new in v.108 | |
| 164 | 237 static float DBG_pres_surface; // new in v.108 |
| 238 static float DBG_GF_low; // new in v.108 | |
| 239 static float DBG_GF_high; // new in v.108 | |
| 240 static float DBG_const_ppO2; // new in v.108 | |
| 241 static float DBG_float_saturation_multiplier; // new in v.108 | |
| 242 static float DBG_float_desaturation_multiplier; // new in v.108 | |
| 243 static float DBG_float_deco_distance; // new in v.108 | |
| 244 static float DBG_N2_ratio; // new in v.108 | |
| 245 static float DBG_He_ratio; // new in v.108 | |
| 246 | |
| 167 | 247 ////////////////////////////////////////////////////////////////////////////// |
| 248 ////////////////////////////////////////////////////////////////////////////// | |
| 249 ///////////////////////////// THE LOOKUP TABLES ////////////////////////////// | |
| 250 ////////////////////////////////////////////////////////////////////////////// | |
| 251 ////////////////////////////////////////////////////////////////////////////// | |
| 252 // | |
| 253 // End of PROM code is 17F00, So push tables on PROM top... | |
| 254 // | |
| 255 #pragma romdata buhlmann_tables = 0x017B00 // Needs to be in UPPER bank. | |
| 256 #include "p2_tables.romdata" // new table for deco_main_v.101 (var_N2_a modified) | |
| 116 | 257 |
| 167 | 258 // Magic table to compute the MD2 HASH |
| 259 // | |
| 260 #pragma romdata hash_tables = 0x017E00 // Address fixed by ASM access... | |
| 203 | 261 rom const rom unsigned short md_pi[] = |
| 116 | 262 { |
| 263 0x292E, 0x43C9, 0xA2D8, 0x7C01, 0x3D36, 0x54A1, 0xECF0, 0x0613 | |
| 264 , 0x62A7, 0x05F3, 0xC0C7, 0x738C, 0x9893, 0x2BD9, 0xBC4C, 0x82CA | |
| 265 , 0x1E9B, 0x573C, 0xFDD4, 0xE016, 0x6742, 0x6F18, 0x8A17, 0xE512 | |
| 266 , 0xBE4E, 0xC4D6, 0xDA9E, 0xDE49, 0xA0FB, 0xF58E, 0xBB2F, 0xEE7A | |
| 267 , 0xA968, 0x7991, 0x15B2, 0x073F, 0x94C2, 0x1089, 0x0B22, 0x5F21 | |
| 268 , 0x807F, 0x5D9A, 0x5A90, 0x3227, 0x353E, 0xCCE7, 0xBFF7, 0x9703 | |
| 269 , 0xFF19, 0x30B3, 0x48A5, 0xB5D1, 0xD75E, 0x922A, 0xAC56, 0xAAC6 | |
| 270 , 0x4FB8, 0x38D2, 0x96A4, 0x7DB6, 0x76FC, 0x6BE2, 0x9C74, 0x04F1 | |
| 271 , 0x459D, 0x7059, 0x6471, 0x8720, 0x865B, 0xCF65, 0xE62D, 0xA802 | |
| 272 , 0x1B60, 0x25AD, 0xAEB0, 0xB9F6, 0x1C46, 0x6169, 0x3440, 0x7E0F | |
| 273 , 0x5547, 0xA323, 0xDD51, 0xAF3A, 0xC35C, 0xF9CE, 0xBAC5, 0xEA26 | |
| 274 , 0x2C53, 0x0D6E, 0x8528, 0x8409, 0xD3DF, 0xCDF4, 0x4181, 0x4D52 | |
| 275 , 0x6ADC, 0x37C8, 0x6CC1, 0xABFA, 0x24E1, 0x7B08, 0x0CBD, 0xB14A | |
| 276 , 0x7888, 0x958B, 0xE363, 0xE86D, 0xE9CB, 0xD5FE, 0x3B00, 0x1D39 | |
| 277 , 0xF2EF, 0xB70E, 0x6658, 0xD0E4, 0xA677, 0x72F8, 0xEB75, 0x4B0A | |
| 278 , 0x3144, 0x50B4, 0x8FED, 0x1F1A, 0xDB99, 0x8D33, 0x9F11, 0x8314 | |
| 279 }; | |
| 280 | |
| 167 | 281 ////////////////////////////////////////////////////////////////////////////// |
| 282 ////////////////////////////////////////////////////////////////////////////// | |
| 283 ////////////////////////////// THE SUBROUTINES /////////////////////////////// | |
| 284 ////////////////////////////////////////////////////////////////////////////// | |
| 285 ////////////////////////////////////////////////////////////////////////////// | |
| 286 // | |
| 116 | 287 // all new in v.102 |
| 288 // moved from 0x0D000 to 0x0C000 in v.108 | |
| 289 | |
| 290 #pragma code p2_deco = 0x0C000 | |
| 291 | |
| 167 | 292 ////////////////////////////////////////////////////////////////////////////// |
| 293 // DBS - debug on start of dive | |
| 294 // | |
| 295 static void create_dbs_set_dbg_and_ndl20mtr(void) | |
| 116 | 296 { |
| 167 | 297 overlay char i; // Local loop index. |
| 298 | |
| 299 //---- Reset DEBUG bit fields -------------------------------------------- | |
| 116 | 300 int_O_DBS_bitfield = 0; |
| 301 int_O_DBS2_bitfield = 0; | |
| 302 if(int_O_DBG_pre_bitfield & DBG_RUN) | |
| 303 int_O_DBG_pre_bitfield = DBG_RESTART; | |
| 304 else | |
| 305 int_O_DBG_pre_bitfield = DBG_RUN; | |
| 306 int_O_DBG_post_bitfield = 0; | |
| 167 | 307 |
| 308 //---- Set 20meters ND limit --------------------------------------------- | |
| 116 | 309 char_O_NDL_at_20mtr = 255; |
| 310 | |
| 167 | 311 //---- Copy all dive parameters ------------------------------------------ |
| 116 | 312 DBG_N2_ratio = N2_ratio; |
| 313 DBG_He_ratio = He_ratio; | |
| 314 DBG_char_I_deco_model = char_I_deco_model; | |
| 315 DBG_char_I_depth_last_deco = char_I_depth_last_deco; | |
| 316 DBG_pres_surface = pres_surface; | |
| 317 DBG_GF_low = GF_low; | |
| 318 DBG_GF_high = GF_high; | |
| 319 DBG_const_ppO2 = const_ppO2; | |
| 224 | 320 DBG_deco_N2_ratio = char_I_deco_N2_ratio[0]; |
| 321 DBG_deco_He_ratio = char_I_deco_He_ratio[0]; | |
| 225 | 322 DBG_deco_gas_change = deco_gas_change[0]; |
| 116 | 323 DBG_float_saturation_multiplier = float_saturation_multiplier; |
| 324 DBG_float_desaturation_multiplier = float_desaturation_multiplier; | |
| 325 DBG_float_deco_distance = float_deco_distance; | |
| 326 | |
| 167 | 327 //---- Setup some error (?) conditions ----------------------------------- |
| 116 | 328 if(char_I_deco_model) |
| 329 int_O_DBS_bitfield |= DBS_mode; | |
| 330 if(const_ppO2) | |
| 331 int_O_DBS_bitfield |= DBS_ppO2; | |
| 338 | 332 for(i = NUM_COMP; i < 2*NUM_COMP; i++) |
| 167 | 333 if(pres_tissue[i]) |
| 116 | 334 int_O_DBS_bitfield |= DBS_HE_sat; |
| 335 if(float_saturation_multiplier < 0.99) | |
| 336 int_O_DBS_bitfield |= DBS_SAT2l; | |
| 337 if(float_saturation_multiplier > 1.3) | |
| 338 int_O_DBS_bitfield |= DBS_SAT2h; | |
| 339 if(GF_low < 0.19) | |
| 340 int_O_DBS_bitfield |= DBS_GFLOW2l; | |
| 341 if(GF_low > 1.01) | |
| 342 int_O_DBS_bitfield |= DBS_GFLOW2h; | |
| 343 if(GF_high < 0.6) | |
| 344 int_O_DBS_bitfield |= DBS_GFHGH2l; | |
| 345 if(GF_high > 1.01) | |
| 346 int_O_DBS_bitfield |= DBS_GFHGH2h; | |
| 347 if((N2_ratio + He_ratio) > 0.95) | |
| 348 int_O_DBS_bitfield |= DBS_GASO22l; | |
| 349 if((N2_ratio + He_ratio) < 0.05) | |
| 350 int_O_DBS_bitfield |= DBS_GASO22h; | |
| 351 if(float_deco_distance > 0.25) | |
| 352 int_O_DBS_bitfield |= DBS_DIST2h; | |
| 353 if(char_I_depth_last_deco > 8) | |
| 354 int_O_DBS_bitfield |= DBS_LAST2h; | |
| 224 | 355 if(DBG_deco_gas_change && ((char_I_deco_N2_ratio[0] + char_I_deco_He_ratio[0]) > 95)) |
| 116 | 356 int_O_DBS_bitfield |= DBS_DECOO2l; |
| 224 | 357 if(DBG_deco_gas_change && ((char_I_deco_N2_ratio[0] + char_I_deco_He_ratio[0]) < 5)) |
| 116 | 358 int_O_DBS_bitfield |= DBS_DECOO2h; |
| 359 if(pres_respiration > 3.0) | |
| 360 int_O_DBS2_bitfield |= DBS2_PRES2h; | |
| 361 if(pres_surface - pres_respiration > 0.2) | |
| 362 int_O_DBS2_bitfield |= DBS2_PRES2l; | |
| 363 if(pres_surface < 0.75) | |
| 364 int_O_DBS2_bitfield |= DBS2_SURF2l; | |
| 365 if(pres_surface > 1.11) | |
| 366 int_O_DBS2_bitfield |= DBS2_SURF2h; | |
| 367 if(float_desaturation_multiplier < 0.70) | |
| 368 int_O_DBS2_bitfield |= DBS2_DESAT2l; | |
| 369 if(float_desaturation_multiplier > 1.01) | |
| 370 int_O_DBS2_bitfield |= DBS2_DESAT2h; | |
| 371 if(GF_low > GF_high) | |
| 372 int_O_DBS2_bitfield |= DBS2_GFDneg; | |
| 373 } | |
| 374 | |
| 167 | 375 ////////////////////////////////////////////////////////////////////////////// |
| 376 // DBG - set DBG to end_of_dive | |
| 377 // | |
| 378 static void set_dbg_end_of_dive(void) | |
| 116 | 379 { |
| 380 int_O_DBG_pre_bitfield &= (~DBG_RUN); | |
| 381 int_O_DBG_post_bitfield &= (~DBG_RUN); | |
| 382 } | |
| 383 | |
| 167 | 384 ////////////////////////////////////////////////////////////////////////////// |
| 385 // DBG - NDL at first 20 m. hit | |
| 386 // | |
| 387 static void check_ndl(void) | |
| 116 | 388 { |
| 167 | 389 if( char_O_NDL_at_20mtr == 255 // Still in NDL mode ? |
| 390 && int_I_pres_respiration > 3000 // And we hit the 20m limit ? | |
| 391 ) | |
| 116 | 392 { |
| 167 | 393 char_O_NDL_at_20mtr = char_O_nullzeit; // change to max bottom time. |
| 394 if( char_O_NDL_at_20mtr == 255) // and avoid confusion. | |
| 184 | 395 char_O_NDL_at_20mtr = 254; |
| 116 | 396 } |
| 397 } | |
| 398 | |
| 167 | 399 ////////////////////////////////////////////////////////////////////////////// |
| 400 // DBG - multi main during dive | |
| 401 // | |
| 184 | 402 static void check_dbg(PARAMETER char is_post_check) |
| 116 | 403 { |
| 203 | 404 overlay unsigned short temp_DBS = 0; |
| 200 | 405 overlay unsigned char i; // Local loop index. |
| 167 | 406 |
| 116 | 407 if( (DBG_N2_ratio != N2_ratio) || (DBG_He_ratio != He_ratio) ) |
| 408 temp_DBS |= DBG_c_gas; | |
| 409 if(DBG_const_ppO2 != const_ppO2) | |
| 410 temp_DBS |= DBG_c_ppO2; | |
| 167 | 411 if( DBG_float_saturation_multiplier != float_saturation_multiplier |
| 412 || DBG_float_desaturation_multiplier != float_desaturation_multiplier | |
| 413 ) | |
| 116 | 414 temp_DBS |= DBG_CdeSAT; |
| 415 if(DBG_char_I_deco_model != char_I_deco_model) | |
| 416 temp_DBS |= DBG_C_MODE; | |
| 417 if(DBG_pres_surface != pres_surface) | |
| 418 temp_DBS |= DBG_C_SURF; | |
| 167 | 419 |
| 420 if( !DBS_HE_sat && !He_ratio) | |
| 338 | 421 for(i = NUM_COMP; i < 2*NUM_COMP; i++) |
| 167 | 422 if(pres_tissue[i]) |
| 116 | 423 temp_DBS |= DBG_HEwoHE; |
| 167 | 424 |
| 225 | 425 if( DBG_deco_gas_change != deco_gas_change[0] |
| 224 | 426 || DBG_deco_N2_ratio != char_I_deco_N2_ratio[0] |
| 427 || DBG_deco_He_ratio != char_I_deco_He_ratio[0] ) | |
| 116 | 428 temp_DBS |= DBG_C_DGAS; |
| 167 | 429 |
| 116 | 430 if(DBG_float_deco_distance != float_deco_distance) |
| 431 temp_DBS |= DBG_C_DIST; | |
| 432 if(DBG_char_I_depth_last_deco != char_I_depth_last_deco) | |
| 433 temp_DBS |= DBG_C_LAST; | |
| 167 | 434 if( DBG_GF_low != GF_low |
| 435 || DBG_GF_high != GF_high ) | |
| 116 | 436 temp_DBS |= DBG_C_GF; |
| 437 if(pres_respiration > 13.0) | |
| 438 temp_DBS |= DBG_PHIGH; | |
| 439 if(pres_surface - pres_respiration > 0.2) | |
| 440 temp_DBS |= DBG_PLOW; | |
| 441 if(is_post_check) | |
| 442 int_O_DBG_post_bitfield |= temp_DBS; | |
| 443 else | |
| 444 int_O_DBG_pre_bitfield |= temp_DBS; | |
| 445 } | |
| 446 | |
| 167 | 447 ////////////////////////////////////////////////////////////////////////////// |
| 448 // DBG - prior to calc. of dive | |
| 449 // | |
| 450 static void check_pre_dbg(void) | |
| 116 | 451 { |
| 452 check_dbg(0); | |
| 453 } | |
| 454 | |
| 167 | 455 ////////////////////////////////////////////////////////////////////////////// |
| 456 // DBG - after decocalc of dive | |
| 457 // | |
| 458 static void check_post_dbg(void) | |
| 116 | 459 { |
| 460 check_dbg(1); | |
| 461 } | |
| 462 | |
| 165 | 463 ////////////////////////////////////////////////////////////////////////////// |
| 167 | 464 ////////////////////////////////////////////////////////////////////////////// |
| 465 /////////////////////// U T I L I T I E S ///////////////////////////////// | |
| 466 ////////////////////////////////////////////////////////////////////////////// | |
| 467 ////////////////////////////////////////////////////////////////////////////// | |
| 468 | |
| 235 | 469 ////////////////////////////////////////////////////////////////////////////// |
|
257
f8f869bafd92
Use timer TMR3 to limit loops in calc_hauptroutine_calc_deco()
JeanDo
parents:
252
diff
changeset
|
470 // Bump to blue-screen when an assert is wrong |
| 235 | 471 #ifdef __DEBUG |
| 472 void assert_failed(PARAMETER short int line) | |
| 473 { | |
| 474 extern void PLED_resetdebugger(void); | |
| 475 extern unsigned short temp10; | |
| 476 | |
|
257
f8f869bafd92
Use timer TMR3 to limit loops in calc_hauptroutine_calc_deco()
JeanDo
parents:
252
diff
changeset
|
477 temp10 = line; // Show source line number as stack depth. |
| 235 | 478 PLED_resetdebugger(); |
| 479 } | |
| 480 #endif | |
|
257
f8f869bafd92
Use timer TMR3 to limit loops in calc_hauptroutine_calc_deco()
JeanDo
parents:
252
diff
changeset
|
481 |
| 235 | 482 ////////////////////////////////////////////////////////////////////////////// |
| 483 // When calling C code from ASM context, the data stack pointer and | |
| 484 // frames should be reset. Bank8 is used by stack, when not doing hashing. | |
| 485 | |
| 486 #ifdef CROSS_COMPILE | |
| 487 # define RESET_C_STACK | |
| 488 #else | |
| 489 # ifdef __DEBUG | |
| 490 # define RESET_C_STACK fillDataStack(); | |
| 491 void fillDataStack(void) | |
| 492 { | |
| 493 _asm | |
| 494 LFSR 1,C_STACK | |
| 495 MOVLW 0xCC | |
| 496 loop: MOVWF POSTINC1,0 | |
| 497 TSTFSZ FSR1L,0 | |
| 498 BRA loop | |
| 499 | |
| 500 LFSR 1,C_STACK | |
| 501 LFSR 2,C_STACK | |
| 502 _endasm | |
| 503 } | |
| 504 # else | |
| 505 # define RESET_C_STACK \ | |
| 506 _asm \ | |
| 507 LFSR 1, C_STACK \ | |
| 508 LFSR 2, C_STACK \ | |
| 509 _endasm | |
| 510 # endif | |
| 511 #endif | |
| 512 | |
| 513 ////////////////////////////////////////////////////////////////////////////// | |
|
257
f8f869bafd92
Use timer TMR3 to limit loops in calc_hauptroutine_calc_deco()
JeanDo
parents:
252
diff
changeset
|
514 // Read CF values from the C code. |
| 235 | 515 |
| 203 | 516 static short read_custom_function(PARAMETER unsigned char cf) |
| 167 | 517 { |
| 184 | 518 #ifdef CROSS_COMPILE |
| 519 extern unsigned short custom_functions[]; | |
| 520 return custom_functions[cf]; | |
| 521 #else | |
| 167 | 522 extern unsigned char hi, lo; |
| 523 extern void getcustom15(); | |
| 524 _asm | |
| 525 movff cf,WREG | |
| 526 call getcustom15,0 | |
| 527 movff lo,PRODL | |
| 528 movff hi,PRODH | |
| 529 _endasm | |
| 184 | 530 #endif |
| 167 | 531 } |
| 532 | |
| 533 ////////////////////////////////////////////////////////////////////////////// | |
|
257
f8f869bafd92
Use timer TMR3 to limit loops in calc_hauptroutine_calc_deco()
JeanDo
parents:
252
diff
changeset
|
534 // Fast subroutine to read RTC timer 3. |
|
f8f869bafd92
Use timer TMR3 to limit loops in calc_hauptroutine_calc_deco()
JeanDo
parents:
252
diff
changeset
|
535 // Note: result is in 1/32 of msecs. |
|
f8f869bafd92
Use timer TMR3 to limit loops in calc_hauptroutine_calc_deco()
JeanDo
parents:
252
diff
changeset
|
536 static unsigned short tmr3(void) |
|
f8f869bafd92
Use timer TMR3 to limit loops in calc_hauptroutine_calc_deco()
JeanDo
parents:
252
diff
changeset
|
537 { |
| 261 | 538 #ifndef CROSS_COMPILE |
|
257
f8f869bafd92
Use timer TMR3 to limit loops in calc_hauptroutine_calc_deco()
JeanDo
parents:
252
diff
changeset
|
539 _asm |
|
f8f869bafd92
Use timer TMR3 to limit loops in calc_hauptroutine_calc_deco()
JeanDo
parents:
252
diff
changeset
|
540 movff 0xfb2,PRODL // TMR3L |
|
f8f869bafd92
Use timer TMR3 to limit loops in calc_hauptroutine_calc_deco()
JeanDo
parents:
252
diff
changeset
|
541 movff 0xfb3,PRODH // TMR3H |
|
f8f869bafd92
Use timer TMR3 to limit loops in calc_hauptroutine_calc_deco()
JeanDo
parents:
252
diff
changeset
|
542 _endasm // result in PRODH:PRODL. |
| 261 | 543 #else |
| 544 return 0; | |
| 545 #endif | |
|
257
f8f869bafd92
Use timer TMR3 to limit loops in calc_hauptroutine_calc_deco()
JeanDo
parents:
252
diff
changeset
|
546 } |
|
f8f869bafd92
Use timer TMR3 to limit loops in calc_hauptroutine_calc_deco()
JeanDo
parents:
252
diff
changeset
|
547 |
|
f8f869bafd92
Use timer TMR3 to limit loops in calc_hauptroutine_calc_deco()
JeanDo
parents:
252
diff
changeset
|
548 ////////////////////////////////////////////////////////////////////////////// |
| 258 | 549 // read buhlmann tables A and B for compatriment ci |
| 550 // | |
| 551 static void read_buhlmann_coefficients(void) | |
| 165 | 552 { |
| 338 | 553 |
| 184 | 554 #ifndef CROSS_COMPILE |
| 167 | 555 // Note: we don't use far rom pointer, because the |
| 338 | 556 // 24 bits is too complex, hence we have to set |
| 167 | 557 // the UPPER page ourself... |
| 558 // --> Set zero if tables are moved to lower pages ! | |
| 559 _asm | |
| 560 movlw 1 | |
| 561 movwf TBLPTRU,0 | |
| 562 _endasm | |
| 184 | 563 #endif |
| 258 | 564 |
| 338 | 565 assert( 0 <= ci && ci < NUM_COMP ); |
| 566 | |
| 567 // Use an interleaved array (AoS) to access coefficients with a | |
| 568 // single addressing. | |
| 569 { | |
| 570 overlay rom const float* ptr = &buhlmann_ab[4*ci]; | |
| 571 var_N2_a = *ptr++; | |
| 572 var_N2_b = *ptr++; | |
| 573 var_He_a = *ptr++; | |
| 574 var_He_b = *ptr++; | |
| 575 } | |
| 167 | 576 |
| 165 | 577 // Check reading consistency: |
| 578 if( (var_N2_a < 0.231) | |
| 579 || (var_N2_a > 1.27) | |
| 580 || (var_N2_b < 0.504) | |
| 581 || (var_N2_b > 0.966) | |
| 582 || (var_He_a < 0.510) | |
| 583 || (var_He_a > 1.75) | |
| 584 || (var_He_b < 0.423) | |
| 585 || (var_He_b > 0.927) | |
| 586 ) | |
| 258 | 587 int_O_DBG_pre_bitfield |= DBG_ZH16ERR; |
| 588 } | |
| 589 | |
| 590 ////////////////////////////////////////////////////////////////////////////// | |
| 591 // read buhlmann tables for compatriment ci | |
| 592 // If period == 0 : 2sec interval | |
| 593 // 1 : 1 min interval | |
| 594 // 2 : 10 min interval. | |
| 595 static void read_buhlmann_times(PARAMETER char period) | |
| 596 { | |
| 597 #ifndef CROSS_COMPILE | |
| 598 // Note: we don't use far rom pointer, because the | |
| 599 // 24 bits is to complex, hence we have to set | |
| 600 // the UPPER page ourself... | |
| 601 // --> Set zero if tables are moved to lower pages ! | |
| 602 _asm | |
| 603 movlw 1 | |
| 604 movwf TBLPTRU,0 | |
| 605 _endasm | |
| 606 #endif | |
| 338 | 607 |
| 608 assert( 0 <= ci && ci < NUM_COMP ); | |
| 258 | 609 |
| 165 | 610 // Integration intervals. |
| 167 | 611 switch(period) |
| 165 | 612 { |
| 613 case 0: //---- 2 sec ----------------------------------------------------- | |
| 338 | 614 { |
| 615 overlay rom const float* ptr = &e2secs[2*ci]; | |
| 616 var_N2_e = *ptr++; | |
| 617 var_He_e = *ptr++; | |
| 618 } | |
| 165 | 619 |
| 620 // Check reading consistency: | |
| 621 if( (var_N2_e < 0.0000363) | |
| 622 || (var_N2_e > 0.00577) | |
| 623 || (var_He_e < 0.0000961) | |
| 624 || (var_He_e > 0.150) | |
| 625 ) | |
| 626 int_O_DBG_pre_bitfield |= DBG_ZH16ERR; | |
| 627 | |
| 628 break; | |
| 629 | |
| 630 case 1: //---- 1 min ----------------------------------------------------- | |
| 338 | 631 { |
| 632 overlay rom const float* ptr = &e1min[2*ci]; | |
| 633 var_N2_e = *ptr++; | |
| 634 var_He_e = *ptr++; | |
| 635 } | |
| 165 | 636 |
| 637 // Check reading consistency: | |
| 638 if( (var_N2_e < 1.09E-3) | |
| 639 || (var_N2_e > 0.1592) | |
| 640 || (var_He_e < 0.00288) | |
| 641 || (var_He_e > 0.3682) | |
| 642 ) | |
| 643 int_O_DBG_pre_bitfield |= DBG_ZH16ERR; | |
| 644 | |
| 645 break; | |
| 646 | |
| 647 case 2: //---- 10 min ---------------------------------------------------- | |
| 338 | 648 { |
| 649 overlay rom const float* ptr = &e10min[2*ci]; | |
| 650 var_N2_e = *ptr++; | |
| 651 var_He_e = *ptr++; | |
| 652 } | |
| 165 | 653 |
| 654 // Check reading consistency: | |
| 655 if( (var_N2_e < 0.01085) | |
| 656 || (var_N2_e > 0.82323) | |
| 657 || (var_He_e < 0.02846) | |
| 658 || (var_He_e > 0.98986) | |
| 659 ) | |
| 660 int_O_DBG_pre_bitfield |= DBG_ZH16ERR; | |
| 661 | |
| 662 break; | |
| 197 | 663 |
| 664 default: | |
| 665 assert(0); // Never go there... | |
| 165 | 666 } |
| 667 } | |
| 668 | |
| 669 ////////////////////////////////////////////////////////////////////////////// | |
| 167 | 670 // calc_next_decodepth_GF |
| 165 | 671 // |
| 116 | 672 // new in v.102 |
| 165 | 673 // |
| 116 | 674 // INPUT, changing during dive: |
| 192 | 675 // low_depth |
| 167 | 676 // |
| 116 | 677 // INPUT, fixed during dive: |
| 167 | 678 // pres_surface |
| 679 // GF_delta | |
| 680 // GF_high | |
| 681 // GF_low | |
| 171 | 682 // char_I_depth_last_deco |
| 167 | 683 // float_deco_distance |
| 684 // | |
| 241 | 685 // RETURN TRUE iff a stop is needed. |
| 686 // | |
| 116 | 687 // OUTPUT |
| 171 | 688 // locked_GF_step |
| 167 | 689 // temp_depth_limt |
| 192 | 690 // low_depth |
| 167 | 691 // |
| 241 | 692 static unsigned char calc_nextdecodepth(void) |
| 167 | 693 { |
| 241 | 694 //--- Max ascent speed --------------------------------------------------- |
| 695 // Recompute leading gas limit, at current depth: | |
| 317 | 696 overlay float depth = (temp_deco - pres_surface) * BAR_TO_METER; |
| 241 | 697 |
| 698 // At most, ascent 1 minute, at 10m/min == 10.0 m. | |
| 302 | 699 overlay float min_depth = (depth > 10.0) ? (depth - 10.0) : 0.0; |
| 241 | 700 |
| 701 // Do we need to stop at current depth ? | |
| 702 overlay unsigned char need_stop = 0; | |
| 703 | |
| 704 assert( depth >= -0.2 ); // Allow for 200mbar of weather change. | |
| 705 | |
| 212 | 706 //---- ZH-L16 + GRADIENT FACTOR model ------------------------------------ |
| 116 | 707 if (char_I_deco_model == 1) |
| 708 { | |
| 241 | 709 if( depth >= low_depth ) |
| 192 | 710 sim_limit( GF_low ); |
| 711 else | |
| 712 sim_limit( GF_high - depth * locked_GF_step ); | |
| 713 | |
| 714 // Stops are needed ? | |
| 715 if( sim_lead_tissue_limit > pres_surface ) | |
| 716 { | |
|
275
4310ab395dbe
Keep low_depth in float 32bits (w/o rounding) for a better stability.
JeanDo
parents:
270
diff
changeset
|
717 // Compute tolerated depth, for the leading tissue [metre]: |
| 317 | 718 overlay float depth_tol = (sim_lead_tissue_limit - pres_surface) * BAR_TO_METER; |
|
275
4310ab395dbe
Keep low_depth in float 32bits (w/o rounding) for a better stability.
JeanDo
parents:
270
diff
changeset
|
719 |
|
4310ab395dbe
Keep low_depth in float 32bits (w/o rounding) for a better stability.
JeanDo
parents:
270
diff
changeset
|
720 // Deepest stop, in multiples of 3 metres. |
|
4310ab395dbe
Keep low_depth in float 32bits (w/o rounding) for a better stability.
JeanDo
parents:
270
diff
changeset
|
721 overlay unsigned char first_stop = 3 * (short)(0.99999 + depth_tol * 0.33333 ); |
| 192 | 722 assert( first_stop < 128 ); |
| 171 | 723 |
|
275
4310ab395dbe
Keep low_depth in float 32bits (w/o rounding) for a better stability.
JeanDo
parents:
270
diff
changeset
|
724 // Is it a new deepest needed stop ? If yes this is the reference for |
|
4310ab395dbe
Keep low_depth in float 32bits (w/o rounding) for a better stability.
JeanDo
parents:
270
diff
changeset
|
725 // the varying gradient factor. So reset that: |
|
4310ab395dbe
Keep low_depth in float 32bits (w/o rounding) for a better stability.
JeanDo
parents:
270
diff
changeset
|
726 if( depth_tol > min_depth && depth_tol > low_depth ) |
|
4310ab395dbe
Keep low_depth in float 32bits (w/o rounding) for a better stability.
JeanDo
parents:
270
diff
changeset
|
727 { |
|
4310ab395dbe
Keep low_depth in float 32bits (w/o rounding) for a better stability.
JeanDo
parents:
270
diff
changeset
|
728 // Store the deepest stop depth, as reference for GF_low. |
|
4310ab395dbe
Keep low_depth in float 32bits (w/o rounding) for a better stability.
JeanDo
parents:
270
diff
changeset
|
729 low_depth = depth_tol; |
|
4310ab395dbe
Keep low_depth in float 32bits (w/o rounding) for a better stability.
JeanDo
parents:
270
diff
changeset
|
730 locked_GF_step = GF_delta / low_depth; |
|
4310ab395dbe
Keep low_depth in float 32bits (w/o rounding) for a better stability.
JeanDo
parents:
270
diff
changeset
|
731 } |
|
4310ab395dbe
Keep low_depth in float 32bits (w/o rounding) for a better stability.
JeanDo
parents:
270
diff
changeset
|
732 |
| 264 | 733 #if defined(__DEBUG) || defined(CROSS_COMPILE) |
| 261 | 734 { |
| 735 // Extra testing code to make sure the first_stop formula | |
| 736 // and rounding provides correct depth: | |
| 317 | 737 overlay float pres_stop = first_stop * METER_TO_BAR |
| 261 | 738 + pres_surface; |
| 739 | |
| 740 // Keep GF_low until a first stop depth is found: | |
| 741 if( first_stop >= low_depth ) | |
| 742 sim_limit( GF_low ); | |
| 743 else | |
| 744 // current GF is GF_high - alpha (GF_high - GF_low) | |
| 745 // With alpha = currentDepth / maxDepth, hence in [0..1] | |
| 746 sim_limit( GF_high - first_stop * locked_GF_step ); | |
| 747 | |
| 302 | 748 // upper limit (lowest pressure tolerated), + 1mbar for rounding...: |
| 749 assert( sim_lead_tissue_limit < (pres_stop + 0.001) ); | |
| 261 | 750 } |
| 751 #endif | |
| 752 | |
| 212 | 753 // Apply correction for the shallowest stop. |
| 192 | 754 if( first_stop == 3 ) // new in v104 |
| 755 first_stop = char_I_depth_last_deco; // Use last 3m..6m instead. | |
| 171 | 756 |
|
275
4310ab395dbe
Keep low_depth in float 32bits (w/o rounding) for a better stability.
JeanDo
parents:
270
diff
changeset
|
757 // Because gradient factor at first_stop might be bigger than at |
| 261 | 758 // current depth, we might ascent a bit more. |
| 759 // Hence, check all stops until one is indeed higher than tolerated presure: | |
| 760 while(first_stop > 0) | |
| 192 | 761 { |
| 762 overlay unsigned char next_stop; // Next index (0..30) | |
| 763 overlay float pres_stop; // Next depth (0m..90m) | |
| 171 | 764 |
| 241 | 765 // Check max speed, or reaching surface. |
| 766 if( first_stop <= min_depth ) | |
| 767 break; | |
| 768 | |
| 769 // So, there is indeed a stop needed: | |
| 770 need_stop = 1; | |
| 771 | |
| 192 | 772 if( first_stop <= char_I_depth_last_deco ) // new in v104 |
| 773 next_stop = 0; | |
| 216 | 774 else if( first_stop == 6 ) |
| 775 next_stop = char_I_depth_last_deco; | |
| 192 | 776 else |
| 777 next_stop = first_stop - 3; // Index of next (upper) stop. | |
| 167 | 778 |
| 317 | 779 pres_stop = next_stop * METER_TO_BAR |
| 192 | 780 + pres_surface; |
| 781 | |
| 212 | 782 // Keep GF_low until a first stop depth is found: |
| 783 if( next_stop >= low_depth ) | |
| 784 sim_limit( GF_low ); | |
| 785 else | |
| 786 // current GF is GF_high - alpha (GF_high - GF_low) | |
| 787 // With alpha = currentDepth / maxDepth, hence in [0..1] | |
| 788 sim_limit( GF_high - next_stop * locked_GF_step ); | |
| 171 | 789 |
| 192 | 790 // upper limit (lowest pressure tolerated): |
| 791 if( sim_lead_tissue_limit >= pres_stop ) // check if ascent to next deco stop is ok | |
| 792 break; | |
| 793 | |
| 794 // Else, validate that stop and loop... | |
| 795 first_stop = next_stop; | |
| 212 | 796 } |
| 797 | |
| 798 // next stop is the last validated depth found, aka first_stop | |
|
275
4310ab395dbe
Keep low_depth in float 32bits (w/o rounding) for a better stability.
JeanDo
parents:
270
diff
changeset
|
799 temp_depth_limit = first_stop; // Stop depth, in metre. |
| 192 | 800 } |
| 171 | 801 else |
|
275
4310ab395dbe
Keep low_depth in float 32bits (w/o rounding) for a better stability.
JeanDo
parents:
270
diff
changeset
|
802 temp_depth_limit = 0; // stop depth, in metre. |
| 116 | 803 } |
| 167 | 804 else //---- ZH-L16 model ------------------------------------------------- |
| 116 | 805 { |
| 192 | 806 overlay float pres_gradient; |
| 807 | |
| 808 // Original model | |
| 116 | 809 // optimized in v.101 |
| 171 | 810 // char_I_depth_last_deco included in v.101 |
| 116 | 811 |
| 192 | 812 // Compute sim_lead_tissue_limit too, but just once. |
| 813 sim_limit(1.0); | |
| 814 | |
| 815 pres_gradient = sim_lead_tissue_limit - pres_surface; | |
| 167 | 816 if (pres_gradient >= 0) |
| 116 | 817 { |
| 317 | 818 pres_gradient *= BAR_TO_METER/3; // Bar --> stop number; |
|
275
4310ab395dbe
Keep low_depth in float 32bits (w/o rounding) for a better stability.
JeanDo
parents:
270
diff
changeset
|
819 temp_depth_limit = 3 * (short) (pres_gradient + 0.99); // --> metre : depth for deco |
| 241 | 820 need_stop = 1; // Hit. |
| 821 | |
| 822 // Implement last stop at 4m/5m/6m... | |
| 823 if( temp_depth_limit == 3 ) | |
| 824 temp_depth_limit = char_I_depth_last_deco; | |
| 171 | 825 } |
| 116 | 826 else |
| 241 | 827 temp_depth_limit = 0; |
| 171 | 828 } |
| 212 | 829 |
| 217 | 830 //---- Check gas change -------------------------------------------------- |
| 241 | 831 need_stop |= gas_switch_deepest(); // Update temp_depth_limit if there is a change, |
| 832 | |
| 833 return need_stop; | |
| 167 | 834 } |
| 116 | 835 |
| 167 | 836 ////////////////////////////////////////////////////////////////////////////// |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
837 // copy_deco_table |
| 167 | 838 // |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
839 // Buffer the stops, once computed, so we can continue to display them |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
840 // while computing the next set. |
| 167 | 841 // |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
842 static void copy_deco_table(void) |
| 116 | 843 { |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
844 // Copy depth of the first (deepest) stop, because when reversing |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
845 // order, it will be hard to find... |
|
279
8514588eb6a2
Mark gas-switch stops for decoplans, displayed in yellow.
JeanDo
parents:
278
diff
changeset
|
846 char_O_first_deco_depth = internal_deco_depth[0] & 0x7F; |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
847 char_O_first_deco_time = internal_deco_time [0]; |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
848 |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
849 if( read_custom_function(54) & 1 ) //---- Should we reverse table ? ------ |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
850 { |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
851 overlay unsigned char x, y; |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
852 |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
853 //---- First: search the first non-null depth |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
854 for(x=31; x != 0; --x) |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
855 if( internal_deco_depth[x] != 0 ) break; |
| 116 | 856 |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
857 //---- Second: copy to output table (in reverse order) |
| 338 | 858 for(y=0; y<NUM_STOPS; y++, --x) |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
859 { |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
860 char_O_deco_depth[y] = internal_deco_depth[x]; |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
861 char_O_deco_time [y] = internal_deco_time [x]; |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
862 |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
863 // Stop only once the last transfer is done. |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
864 if( x == 0 ) break; |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
865 } |
| 116 | 866 |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
867 //---- Third: fill table end with null |
| 338 | 868 for(y++; y<2*NUM_COMP; y++) |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
869 { |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
870 char_O_deco_time [y] = 0; |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
871 char_O_deco_depth[y] = 0; |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
872 } |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
873 } |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
874 else //---- Straight copy ------------------------------------------------ |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
875 { |
| 167 | 876 overlay unsigned char x; |
| 877 | |
| 338 | 878 for(x=0; x<2*NUM_COMP; x++) |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
879 { |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
880 char_O_deco_depth[x] = internal_deco_depth[x]; |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
881 char_O_deco_time [x] = internal_deco_time [x]; |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
882 } |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
883 } |
| 167 | 884 } |
| 116 | 885 |
| 167 | 886 ////////////////////////////////////////////////////////////////////////////// |
| 116 | 887 // temp_tissue_safety // |
| 167 | 888 // |
| 116 | 889 // outsourced in v.102 |
| 167 | 890 // |
| 891 // Apply safety factors for brand ZH-L16 model. | |
| 892 // | |
| 893 static void temp_tissue_safety(void) | |
| 116 | 894 { |
| 197 | 895 assert( 0.0 < float_desaturation_multiplier && float_desaturation_multiplier <= 1.0 ); |
| 896 assert( 1.0 <= float_saturation_multiplier && float_saturation_multiplier <= 2.0 ); | |
| 897 | |
| 167 | 898 if( char_I_deco_model == 0 ) |
| 116 | 899 { |
| 900 if (temp_tissue < 0.0) | |
| 126 | 901 temp_tissue *= float_desaturation_multiplier; |
| 116 | 902 else |
| 126 | 903 temp_tissue *= float_saturation_multiplier; |
| 116 | 904 } |
| 167 | 905 } |
| 116 | 906 |
| 167 | 907 ////////////////////////////////////////////////////////////////////////////// |
| 908 ////////////////////////////////////////////////////////////////////////////// | |
| 116 | 909 // ** THE JUMP-IN CODE ** |
| 910 // ** for the asm code ** | |
| 167 | 911 ////////////////////////////////////////////////////////////////////////////// |
| 912 ////////////////////////////////////////////////////////////////////////////// | |
|
122
3003a8040b78
FIX again reset C data stack and frame pointer when entering C code.
JeanDo
parents:
116
diff
changeset
|
913 |
| 167 | 914 ////////////////////////////////////////////////////////////////////////////// |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
915 // Called every 2 seconds during diving. |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
916 // update tissues every time. |
| 184 | 917 // |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
918 // Every 6 seconds (or slower when TTS > 16): |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
919 // - update deco table (char_O_deco_time/depth) with new values. |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
920 // - update ascent time, |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
921 // - set status to zero (so we can check there is new results). |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
922 // |
| 116 | 923 void deco_calc_hauptroutine(void) |
| 924 { | |
|
122
3003a8040b78
FIX again reset C data stack and frame pointer when entering C code.
JeanDo
parents:
116
diff
changeset
|
925 RESET_C_STACK |
| 116 | 926 calc_hauptroutine(); |
| 927 int_O_desaturation_time = 65535; | |
| 928 } | |
| 929 | |
| 167 | 930 ////////////////////////////////////////////////////////////////////////////// |
| 184 | 931 // Reset decompression model: |
| 932 // + Set all tissues to equilibrium with Air at ambient pressure. | |
| 933 // + Reset last stop to 0m | |
| 934 // + Reset all model output. | |
| 116 | 935 void deco_clear_tissue(void) |
| 936 { | |
|
122
3003a8040b78
FIX again reset C data stack and frame pointer when entering C code.
JeanDo
parents:
116
diff
changeset
|
937 RESET_C_STACK |
| 116 | 938 clear_tissue(); |
| 939 } | |
| 940 | |
| 167 | 941 ////////////////////////////////////////////////////////////////////////////// |
| 278 | 942 // Called every 1 min during decoplanning. |
| 943 // Update tissues for 1 min. | |
| 944 // | |
| 945 void deco_calc_tissue(void) | |
| 946 { | |
| 947 RESET_C_STACK | |
| 948 calc_hauptroutine_update_tissues(); | |
| 949 } | |
| 950 | |
| 951 ////////////////////////////////////////////////////////////////////////////// | |
| 167 | 952 |
| 116 | 953 void deco_calc_wo_deco_step_1_min(void) |
| 954 { | |
|
122
3003a8040b78
FIX again reset C data stack and frame pointer when entering C code.
JeanDo
parents:
116
diff
changeset
|
955 RESET_C_STACK |
| 116 | 956 calc_wo_deco_step_1_min(); |
| 957 deco_calc_desaturation_time(); | |
| 958 } | |
| 959 | |
| 167 | 960 ////////////////////////////////////////////////////////////////////////////// |
| 961 | |
| 116 | 962 void deco_debug(void) |
| 963 { | |
|
122
3003a8040b78
FIX again reset C data stack and frame pointer when entering C code.
JeanDo
parents:
116
diff
changeset
|
964 RESET_C_STACK |
| 116 | 965 } |
| 966 | |
| 241 | 967 |
| 968 ////////////////////////////////////////////////////////////////////////////// | |
| 969 // Find current gas in the list (if any). | |
| 970 // | |
| 971 // Input: char_I_deco_N2_ratio[] and He, to detect breathed gas. | |
| 972 // | |
| 973 // Output: sim_gas_depth_used | |
| 974 // | |
| 975 static void gas_switch_find_current(void) | |
| 976 { | |
|
247
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
977 overlay unsigned char j; |
|
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
978 overlay unsigned char N2 = (unsigned char)(N2_ratio * 100 + 0.5); |
|
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
979 overlay unsigned char He = (unsigned char)(He_ratio * 100 + 0.5); |
|
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
980 |
| 338 | 981 for(j=0; j<NUM_GAS; ++j) |
| 241 | 982 { |
|
247
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
983 // Make sure to detect if we are already breathing some gas in |
|
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
984 // the current list (happends when first gas do have a depth). |
|
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
985 if( N2 == char_I_deco_N2_ratio[j] |
|
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
986 && He == char_I_deco_He_ratio[j] |
|
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
987 ) |
|
290
4dbff2aa31ee
Hunting for refusing to ignore disabled gas in list...
JeanDo
parents:
288
diff
changeset
|
988 { |
|
4dbff2aa31ee
Hunting for refusing to ignore disabled gas in list...
JeanDo
parents:
288
diff
changeset
|
989 if( char_I_deco_gas_change[j] ) |
|
4dbff2aa31ee
Hunting for refusing to ignore disabled gas in list...
JeanDo
parents:
288
diff
changeset
|
990 temp_depth_limit = sim_gas_last_depth = char_I_deco_gas_change[j]; |
|
247
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
991 sim_gas_last_used = j+1; |
|
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
992 break; |
|
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
993 } |
|
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
994 } |
|
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
995 |
|
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
996 // If there is no gas-switch-delay running ? |
|
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
997 if( sim_gas_delay <= sim_dive_mins) |
|
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
998 { |
|
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
999 // Compute current depth: |
|
334
4ccdc72ec0e5
BUGFIX minor error in gas-switch algo (spurious surface decostop rarely added).
JeanDo
parents:
326
diff
changeset
|
1000 overlay unsigned char depth = (unsigned char)(0.5 + (pres_respiration - pres_surface) * BAR_TO_METER); |
|
247
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
1001 assert( depth < 130 ); |
|
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
1002 |
|
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
1003 // And if I'm above the last decostop (with the 3m margin) ? |
|
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
1004 if( (sim_gas_last_depth-3) > depth ) |
| 241 | 1005 { |
| 338 | 1006 for(j=0; j<NUM_GAS; ++j) |
| 241 | 1007 { |
|
247
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
1008 // And If I am in the range of a valide stop ? |
|
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
1009 // (again, with the same 3m margin) |
|
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
1010 if( char_I_deco_gas_change[j] |
|
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
1011 && depth <= char_I_deco_gas_change[j] |
|
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
1012 && depth >= (char_I_deco_gas_change[j] - 3) |
|
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
1013 ) |
|
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
1014 { |
|
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
1015 // Then start gas-switch timer there, |
|
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
1016 sim_gas_delay = sim_dive_mins |
|
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
1017 + read_custom_function(55); |
|
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
1018 |
|
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
1019 // And make sure decostop will be recorded at the right depth. |
|
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
1020 temp_depth_limit = char_I_deco_gas_change[j]; |
|
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
1021 break; |
|
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
1022 } |
| 241 | 1023 } |
| 1024 } | |
|
247
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
1025 else |
|
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
1026 // Make clear there is no deay anymore. |
|
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
1027 sim_gas_delay = 0; |
| 241 | 1028 } |
| 1029 } | |
| 1030 | |
| 167 | 1031 ////////////////////////////////////////////////////////////////////////////// |
| 217 | 1032 // Find deepest available gas. |
| 201 | 1033 // |
| 241 | 1034 // Input: temp_depth_limit, |
| 1035 // deco_gas_change[] | |
| 1036 // sim_gas_delay, sim_gas_depth_used, sim_dive_mins. | |
| 212 | 1037 // |
| 241 | 1038 // RETURNS TRUE if a stop is needed for gas switch. |
| 1039 // | |
| 1040 // Output: temp_depth_limit, sim_gas_delay, sim_gas_depth_used IFF the is a switch. | |
| 212 | 1041 // |
| 241 | 1042 // NOTE: might be called from bottom (when sim_gas_delay and sim_gas_depth_used |
| 1043 // are null), or during the ascent to make sure we are not passing a | |
| 1044 // stop (in which case both can be already set). | |
| 1045 // | |
| 1046 static unsigned char gas_switch_deepest(void) | |
| 201 | 1047 { |
| 241 | 1048 overlay unsigned char switch_deco = 0, switch_last = 0; |
| 201 | 1049 |
| 1050 if (char_I_const_ppO2 == 0) | |
| 1051 { | |
| 225 | 1052 overlay unsigned char j; |
| 1053 | |
| 241 | 1054 // Loop over all enabled gas, to find the deepest one, |
| 1055 // above las gas, but below temp_depth_limit. | |
| 338 | 1056 for(j=0; j<NUM_GAS; ++j) |
| 225 | 1057 { |
| 241 | 1058 // Gas not (yet) allowed ? Skip ! |
| 1059 if( temp_depth_limit > deco_gas_change[j] ) | |
| 1060 continue; | |
| 1061 | |
| 1062 // Gas deeper than the current/previous one ? Skip ! | |
| 1063 if( sim_gas_last_depth && deco_gas_change[j] >= sim_gas_last_depth ) | |
| 1064 continue; | |
| 1065 | |
| 1066 // First, or deeper ? | |
|
247
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
1067 if( switch_deco < deco_gas_change[j] ) |
| 241 | 1068 { |
| 1069 switch_deco = deco_gas_change[j]; | |
| 1070 switch_last = j+1; | |
| 1071 } | |
| 225 | 1072 } |
| 201 | 1073 } |
| 1074 | |
| 203 | 1075 // If there is a better gas available |
| 241 | 1076 if( switch_deco ) |
| 201 | 1077 { |
| 241 | 1078 assert( !sim_gas_last_depth || sim_gas_last_depth > switch_deco ); |
| 201 | 1079 |
| 241 | 1080 // Should restart gas-switch delay only when gas do changes... |
| 1081 assert( sim_gas_delay <= sim_dive_mins ); | |
| 217 | 1082 |
| 241 | 1083 sim_gas_last_depth = switch_deco; |
| 1084 sim_gas_last_used = switch_last; | |
| 1085 sim_gas_delay = read_custom_function(55); | |
| 217 | 1086 |
| 241 | 1087 // Apply depth correction ONLY if CF#55 is not null: |
| 1088 if( sim_gas_delay > 0 ) | |
| 225 | 1089 { |
| 241 | 1090 sim_gas_delay += sim_dive_mins; |
| 1091 temp_depth_limit = switch_deco; | |
| 1092 return 1; | |
| 225 | 1093 } |
| 241 | 1094 |
| 1095 return 0; | |
| 217 | 1096 } |
| 1097 | |
| 241 | 1098 sim_gas_delay = 0; |
| 1099 return 0; | |
| 217 | 1100 } |
| 1101 | |
| 1102 ////////////////////////////////////////////////////////////////////////////// | |
| 1103 // Calculate gas switches | |
| 1104 // | |
| 1105 // | |
| 1106 // Input: N2_ratio, He_ratio. | |
| 1107 // sim_gas_last_used | |
| 1108 // | |
| 1109 // Output: calc_N2_ratio, calc_He_ratio | |
| 1110 // | |
| 241 | 1111 static void gas_switch_set(void) |
| 217 | 1112 { |
| 338 | 1113 assert( 0 <= sim_gas_last_used && sim_gas_last_used <= NUM_GAS ); |
| 217 | 1114 |
| 224 | 1115 if( sim_gas_last_used == 0 ) |
| 1116 { | |
| 1117 calc_N2_ratio = N2_ratio; | |
| 1118 calc_He_ratio = He_ratio; | |
| 1119 } | |
| 1120 else | |
| 1121 { | |
| 1122 calc_N2_ratio = char_I_deco_N2_ratio[sim_gas_last_used-1] * 0.01; | |
| 1123 calc_He_ratio = char_I_deco_He_ratio[sim_gas_last_used-1] * 0.01; | |
| 217 | 1124 } |
| 201 | 1125 |
| 1126 assert( 0.0 <= calc_N2_ratio && calc_N2_ratio <= 0.95 ); | |
| 1127 assert( 0.0 <= calc_He_ratio && calc_He_ratio <= 0.95 ); | |
| 1128 assert( (calc_N2_ratio + calc_He_ratio) <= 1.00 ); | |
| 1129 } | |
| 1130 | |
| 1131 ////////////////////////////////////////////////////////////////////////////// | |
| 1132 // | |
| 212 | 1133 // Input: calc_N2_ratio, calc_He_ratio : simulated gas mix. |
| 1134 // temp_deco : simulated respiration pressure + security offset (deco_distance) | |
| 276 | 1135 // float_deco_distance : security factor. |
|
310
b20fc8c4ac92
Fix EAD/END display (not mm, m with a trailling space)
JeanDo
parents:
307
diff
changeset
|
1136 // Water-vapor pressure inside limbs (ppWater). |
| 212 | 1137 // |
| 236 | 1138 // Output: ppN2, ppHe. |
| 212 | 1139 // |
| 1140 static void sim_alveolar_presures(void) | |
| 201 | 1141 { |
| 212 | 1142 overlay float deco_diluent = temp_deco; // new in v.101 |
| 1143 | |
| 276 | 1144 // Take deco offset into account, but not at surface. |
| 1145 // Note: this should be done on ambiant pressure, hence before | |
| 1146 // computing the diluant partial pressure... | |
| 1147 if( deco_diluent > pres_surface ) | |
| 1148 deco_diluent += float_deco_distance; | |
| 1149 | |
| 212 | 1150 //---- CCR mode : deco gas switch ? -------------------------------------- |
| 276 | 1151 if( char_I_const_ppO2 != 0 ) |
| 201 | 1152 { |
| 276 | 1153 // In CCR mode, use calc_XX_ratio instead of XX_ratio. |
| 1154 // Note: PPO2 and ratios are known outside the lumbs, so there is no | |
|
310
b20fc8c4ac92
Fix EAD/END display (not mm, m with a trailling space)
JeanDo
parents:
307
diff
changeset
|
1155 // ppWater in the equations below: |
| 321 | 1156 deco_diluent -= const_ppO2; |
| 276 | 1157 deco_diluent /= calc_N2_ratio + calc_He_ratio; |
| 212 | 1158 |
| 1159 if (deco_diluent > temp_deco) | |
| 1160 deco_diluent = temp_deco; | |
| 201 | 1161 } |
| 1162 | |
|
310
b20fc8c4ac92
Fix EAD/END display (not mm, m with a trailling space)
JeanDo
parents:
307
diff
changeset
|
1163 if( deco_diluent > ppWater ) |
| 201 | 1164 { |
|
310
b20fc8c4ac92
Fix EAD/END display (not mm, m with a trailling space)
JeanDo
parents:
307
diff
changeset
|
1165 ppN2 = calc_N2_ratio * (deco_diluent - ppWater); |
|
b20fc8c4ac92
Fix EAD/END display (not mm, m with a trailling space)
JeanDo
parents:
307
diff
changeset
|
1166 ppHe = calc_He_ratio * (deco_diluent - ppWater); |
| 201 | 1167 } |
| 1168 else | |
| 1169 { | |
| 236 | 1170 ppN2 = 0.0; |
| 201 | 1171 ppHe = 0.0; |
| 1172 } | |
| 236 | 1173 assert( 0.0 <= ppN2 && ppN2 < 14.0 ); |
| 201 | 1174 assert( 0.0 <= ppHe && ppHe < 14.0 ); |
| 1175 } | |
| 1176 | |
| 1177 ////////////////////////////////////////////////////////////////////////////// | |
| 167 | 1178 // clear_tissue |
| 1179 // | |
| 165 | 1180 // optimized in v.101 (var_N2_a) |
| 167 | 1181 // |
| 1182 // preload tissues with standard pressure for the given ambient pressure. | |
| 1183 // Note: fixed N2_ratio for standard air. | |
| 201 | 1184 // |
| 167 | 1185 static void clear_tissue(void) |
| 116 | 1186 { |
| 1187 flag_in_divemode = 0; | |
| 1188 int_O_DBS_bitfield = 0; | |
| 1189 int_O_DBS2_bitfield = 0; | |
| 1190 int_O_DBG_pre_bitfield = 0; | |
| 1191 int_O_DBG_post_bitfield = 0; | |
| 1192 char_O_NDL_at_20mtr = 255; | |
| 1193 | |
| 167 | 1194 // Kludge: the 0.0002 of 0.7902 are missing with standard air. |
| 1195 N2_ratio = 0.7902; | |
| 212 | 1196 pres_respiration = int_I_pres_respiration * 0.001; |
| 164 | 1197 |
| 338 | 1198 for(ci=0; ci<NUM_COMP; ci++) |
| 126 | 1199 { |
| 197 | 1200 // cycle through the 16 Bühlmann tissues |
|
310
b20fc8c4ac92
Fix EAD/END display (not mm, m with a trailling space)
JeanDo
parents:
307
diff
changeset
|
1201 overlay float p = N2_ratio * (pres_respiration - ppWater); |
| 164 | 1202 pres_tissue[ci] = p; |
| 197 | 1203 |
| 1204 // cycle through the 16 Bühlmann tissues for Helium | |
| 338 | 1205 (pres_tissue+NUM_COMP)[ci] = 0.0; |
| 1206 } // for 0 to 15 | |
| 116 | 1207 |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1208 clear_deco_table(); |
| 126 | 1209 char_O_deco_status = 0; |
| 1210 char_O_nullzeit = 0; | |
| 168 | 1211 int_O_ascenttime = 0; |
| 126 | 1212 char_O_gradient_factor = 0; |
| 1213 char_O_relative_gradient_GF = 0; | |
| 197 | 1214 char_I_depth_last_deco = 0; // for compatibility with v.101pre_no_last_deco |
| 258 | 1215 |
| 1216 calc_lead_tissue_limit = 0.0; | |
| 1217 char_O_gtissue_no = 0; | |
| 167 | 1218 } |
| 116 | 1219 |
| 167 | 1220 ////////////////////////////////////////////////////////////////////////////// |
| 1221 // calc_hauptroutine | |
| 1222 // | |
| 1223 // this is the major code in dive mode calculates: | |
| 116 | 1224 // the tissues, |
| 167 | 1225 // the bottom time, |
| 1226 // and simulates the ascend with all deco stops. | |
| 171 | 1227 // |
| 1228 // The deco_state sequence is : | |
| 1229 // 3 (at surface) | |
| 1230 // +---> 0 : calc nullzeit | |
| 1231 // | 2 : simulate ascent to first stop (at 10m/min, less that 16x 1min simu) | |
| 1232 // | +-> 1 : simulate up to 16min of stops. | |
| 1233 // | +------< not finished | |
| 1234 // +--------< finish | |
| 1235 // | |
|
312
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1236 // Added steps 6,5 for @+5 calculation: |
|
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1237 // 6 = ascent to first stop (same as 2), except continue to 7 |
|
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1238 // 7 = same as 1, except loop to 7. |
|
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1239 // |
| 167 | 1240 static void calc_hauptroutine(void) |
| 116 | 1241 { |
| 241 | 1242 static unsigned char backup_gas_used = 0; |
| 1243 static unsigned char backup_gas_depth = 0; | |
| 217 | 1244 static unsigned char backup_gas_delay = 0; |
| 186 | 1245 |
| 116 | 1246 calc_hauptroutine_data_input(); |
| 1247 | |
| 1248 if(!flag_in_divemode) | |
| 1249 { | |
| 1250 flag_in_divemode = 1; | |
| 1251 create_dbs_set_dbg_and_ndl20mtr(); | |
| 1252 } | |
| 1253 else | |
| 1254 check_pre_dbg(); | |
| 1255 | |
| 1256 calc_hauptroutine_update_tissues(); | |
| 1257 calc_gradient_factor(); | |
| 1258 | |
| 167 | 1259 // toggle between calculation for nullzeit (bottom time), |
| 1260 // deco stops | |
| 1261 // and more deco stops (continue) | |
| 1262 switch( char_O_deco_status ) | |
| 116 | 1263 { |
| 186 | 1264 case 3: //---- At surface: start a new dive ------------------------------ |
| 1265 clear_deco_table(); | |
| 1266 copy_deco_table(); | |
| 200 | 1267 int_O_ascenttime = 0; // Reset DTR. |
| 323 | 1268 int_O_extra_ascenttime = 0; |
| 200 | 1269 char_O_nullzeit = 0; // Reset bottom time. |
| 278 | 1270 char_O_deco_status = 0; // Calc bottom-time/nullzeit next iteration. |
| 201 | 1271 |
| 217 | 1272 // Values that should be reset just once for the full real dive. |
| 1273 // This is used to record the lowest stop for the whole dive, | |
| 1274 // Including ACCROSS all simulated ascent. | |
|
293
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
JeanDo
parents:
292
diff
changeset
|
1275 low_depth = 0.0; |
| 217 | 1276 |
| 1277 // Reset gas switch history. | |
| 241 | 1278 backup_gas_used = sim_gas_last_used = 0; |
| 1279 backup_gas_depth = sim_gas_last_depth = 0; | |
| 217 | 1280 backup_gas_delay = sim_gas_delay = 0; |
| 203 | 1281 sim_dive_mins = 0; |
| 1282 break; | |
| 186 | 1283 |
| 167 | 1284 case 0: //---- bottom time ----------------------------------------------- |
|
312
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1285 default: |
| 167 | 1286 calc_nullzeit(); |
| 1287 check_ndl(); | |
| 186 | 1288 char_O_deco_status = 2; // calc ascent next time. |
| 1289 break; | |
| 1290 | |
| 1291 case 2: //---- Simulate ascent to first stop ----------------------------- | |
|
312
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1292 case 6: // @+5min variation |
| 203 | 1293 // Check proposed gas at begin of ascent simulation |
|
247
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
1294 sim_dive_mins = int_I_divemins; // Init current time. |
| 241 | 1295 |
|
247
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
1296 gas_switch_find_current(); // Lookup for current gas & time. |
|
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
1297 gas_switch_set(); // setup calc_ratio's |
|
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
1298 |
|
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
1299 backup_gas_used = sim_gas_last_used; // And save for later simu steps. |
|
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
1300 backup_gas_depth = sim_gas_last_depth; // And save for later simu steps. |
| 203 | 1301 backup_gas_delay = sim_gas_delay; |
| 186 | 1302 |
| 1303 sim_ascent_to_first_stop(); | |
| 201 | 1304 |
|
312
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1305 // Calc stops next time (deco or gas switch). |
|
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1306 char_O_deco_status = 1 | ( char_O_deco_status & 4 ); |
| 167 | 1307 break; |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1308 |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1309 case 1: //---- Simulate stops -------------------------------------------- |
|
312
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1310 case 5: // @+5 variation. |
| 167 | 1311 calc_hauptroutine_calc_deco(); |
| 186 | 1312 |
| 1313 // If simulation is finished, restore the GF low reference, so that | |
| 1314 // next ascent simulation is done from the current depth: | |
|
312
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1315 if( (char_O_deco_status & 3) == 0 ) |
| 186 | 1316 { |
| 241 | 1317 sim_gas_last_used = backup_gas_used; |
| 1318 sim_gas_last_depth = backup_gas_depth; | |
|
247
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
1319 sim_gas_delay = backup_gas_delay; |
| 186 | 1320 } |
| 167 | 1321 break; |
| 116 | 1322 } |
| 167 | 1323 |
| 116 | 1324 check_post_dbg(); |
| 1325 } | |
| 1326 | |
| 167 | 1327 ////////////////////////////////////////////////////////////////////////////// |
| 1328 // calc_hauptroutine_data_input | |
| 1329 // | |
| 1330 // Reset all C-code dive parameters from their ASM-code values. | |
| 1331 // Detect gas change condition. | |
| 1332 // | |
| 116 | 1333 void calc_hauptroutine_data_input(void) |
| 1334 { | |
| 203 | 1335 overlay short int_temp; |
| 126 | 1336 |
| 197 | 1337 pres_respiration = int_I_pres_respiration * 0.001; |
| 1338 pres_surface = int_I_pres_surface * 0.001; | |
| 1339 N2_ratio = char_I_N2_ratio * 0.01; | |
| 1340 He_ratio = char_I_He_ratio * 0.01; | |
| 1341 float_deco_distance = char_I_deco_distance * 0.01; // Get offset is in mbar. | |
| 116 | 1342 |
| 126 | 1343 // ____________________________________________________ |
| 1344 // | |
| 1345 // _____________ G A S _ C H A N G E S ________________ | |
| 1346 // ____________________________________________________ | |
| 1347 | |
| 212 | 1348 // Keep a margin of 150mbar = 1.50m |
| 1349 int_temp = (int_I_pres_respiration - int_I_pres_surface) | |
| 1350 + MBAR_REACH_GASCHANGE_AUTO_CHANGE_OFF; | |
| 126 | 1351 |
| 225 | 1352 deco_gas_change[0] = 0; |
| 1353 deco_gas_change[1] = 0; | |
| 1354 deco_gas_change[2] = 0; | |
| 1355 deco_gas_change[3] = 0; | |
| 1356 deco_gas_change[4] = 0; | |
| 116 | 1357 |
| 203 | 1358 // Gas are selectable if we did not pass the change depth by more than 1.50m: |
|
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
1359 if(char_I_deco_gas_change[0]) |
| 126 | 1360 { |
|
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
1361 if( int_temp > 100 *(short)char_I_deco_gas_change[0] ) |
| 225 | 1362 deco_gas_change[0] = char_I_deco_gas_change[0]; |
| 126 | 1363 } |
|
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
1364 if(char_I_deco_gas_change[1]) |
| 126 | 1365 { |
|
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
1366 if( int_temp > 100 *(short)char_I_deco_gas_change[1] ) |
| 225 | 1367 deco_gas_change[1] = char_I_deco_gas_change[1]; |
| 126 | 1368 } |
|
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
1369 if(char_I_deco_gas_change[2]) |
| 126 | 1370 { |
|
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
1371 if( int_temp > 100 *(short)char_I_deco_gas_change[2] ) |
| 225 | 1372 deco_gas_change[2] = char_I_deco_gas_change[2]; |
| 126 | 1373 } |
|
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
1374 if(char_I_deco_gas_change[3]) |
| 126 | 1375 { |
|
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
1376 if( int_temp > 100 *(short)char_I_deco_gas_change[3] ) |
| 225 | 1377 deco_gas_change[3] = char_I_deco_gas_change[3]; |
| 126 | 1378 } |
|
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
1379 if(char_I_deco_gas_change[4]) |
| 126 | 1380 { |
|
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
1381 if( int_temp > 100 *(short)char_I_deco_gas_change[4] ) |
| 225 | 1382 deco_gas_change[4] = char_I_deco_gas_change[4]; |
| 126 | 1383 } |
| 116 | 1384 |
| 197 | 1385 const_ppO2 = char_I_const_ppO2 * 0.01; |
| 1386 float_desaturation_multiplier = char_I_desaturation_multiplier * 0.01; | |
| 1387 float_saturation_multiplier = char_I_saturation_multiplier * 0.01; | |
| 1388 GF_low = char_I_GF_Low_percentage * 0.01; | |
| 1389 GF_high = char_I_GF_High_percentage * 0.01; | |
| 126 | 1390 GF_delta = GF_high - GF_low; |
| 116 | 1391 } |
| 1392 | |
| 167 | 1393 ////////////////////////////////////////////////////////////////////////////// |
| 171 | 1394 // |
| 1395 // | |
| 116 | 1396 void calc_hauptroutine_update_tissues(void) |
| 1397 { | |
| 197 | 1398 assert( 0.00 <= N2_ratio && N2_ratio <= 1.00 ); |
| 1399 assert( 0.00 <= He_ratio && He_ratio <= 1.00 ); | |
| 1400 assert( (N2_ratio + He_ratio) <= 0.95 ); | |
| 237 | 1401 assert( 0.800 < pres_respiration && pres_respiration < 14.0 ); |
| 197 | 1402 |
| 276 | 1403 pres_diluent = pres_respiration; |
| 307 | 1404 if( char_I_const_ppO2 != 0 ) // new in v.101 |
| 186 | 1405 { |
| 322 | 1406 overlay float flush_ppO2 = pres_respiration * (1.0 - N2_ratio - He_ratio); |
| 1407 | |
| 276 | 1408 pres_diluent -= const_ppO2; // new in v.101 |
| 1409 pres_diluent /= N2_ratio + He_ratio; // new in v.101 | |
| 321 | 1410 if( pres_diluent < 0.0 ) |
| 1411 pres_diluent = 0.0; | |
| 276 | 1412 if( pres_diluent > pres_respiration ) // new in v.101 |
| 1413 pres_diluent = pres_respiration; // new in v.101 | |
| 307 | 1414 |
| 321 | 1415 char_O_diluent = (unsigned char)(pres_diluent/pres_respiration*100.0 + 0.5); |
| 322 | 1416 |
| 326 | 1417 if( flush_ppO2 > 2.545) flush_ppO2 = 2.55; |
| 322 | 1418 if( flush_ppO2 < 0.0 ) flush_ppO2 = 0.0; |
| 1419 char_O_flush_ppO2 = (unsigned char)(flush_ppO2*100.0 + 0.5); | |
| 186 | 1420 } |
| 307 | 1421 |
|
310
b20fc8c4ac92
Fix EAD/END display (not mm, m with a trailling space)
JeanDo
parents:
307
diff
changeset
|
1422 if( pres_diluent > ppWater ) // new in v.101 |
| 116 | 1423 { |
| 307 | 1424 overlay float EAD, END; |
| 1425 | |
|
310
b20fc8c4ac92
Fix EAD/END display (not mm, m with a trailling space)
JeanDo
parents:
307
diff
changeset
|
1426 ppN2 = N2_ratio * (pres_diluent - ppWater); // changed in v.101 |
|
b20fc8c4ac92
Fix EAD/END display (not mm, m with a trailling space)
JeanDo
parents:
307
diff
changeset
|
1427 ppHe = He_ratio * (pres_diluent - ppWater); // changed in v.101 |
| 307 | 1428 |
| 1429 // EAD : Equivalent Air Dive. Equivalent depth for the same N2 level | |
| 1430 // with plain air. | |
|
310
b20fc8c4ac92
Fix EAD/END display (not mm, m with a trailling space)
JeanDo
parents:
307
diff
changeset
|
1431 // ppN2 = 79% * (P_EAD - ppWater) |
| 307 | 1432 // EAD = (P_EAD - Psurface) * 10 |
|
310
b20fc8c4ac92
Fix EAD/END display (not mm, m with a trailling space)
JeanDo
parents:
307
diff
changeset
|
1433 // ie: EAD = (ppN2 / 0.7902 + ppWater -Psurface) * 10 |
| 317 | 1434 EAD = (ppN2 / 0.7902 + ppWater - pres_surface) * BAR_TO_METER; |
| 307 | 1435 if( EAD < 0.0 || EAD > 245.5 ) EAD = 0.0; |
| 317 | 1436 char_O_EAD = (unsigned char)(EAD + 0.5); |
| 307 | 1437 |
| 1438 // END : Equivalent Narcotic Dive. | |
| 1439 // Here we count O2 as narcotic too. Hence everything but helium (has a narcosis factor of | |
| 1440 // 0.23 btw). Hence the formula becomes: | |
|
310
b20fc8c4ac92
Fix EAD/END display (not mm, m with a trailling space)
JeanDo
parents:
307
diff
changeset
|
1441 // END * BarPerMeter * (1.0 - 0.0) - ppWater + Psurface == Pambient - ppHe - ppWater |
| 317 | 1442 // ie: END = (Pambient - ppHe - Psurface) * BAR_TO_METER |
| 307 | 1443 // |
| 1444 // Source cited: | |
| 1445 // The Physiology and Medicine of Diving by Peter Bennett and David Elliott, | |
| 1446 // 4th edition, 1993, W.B.Saunders Company Ltd, London. | |
| 317 | 1447 END = (pres_respiration - ppHe - pres_surface) * BAR_TO_METER; |
| 307 | 1448 if( END < 0.0 || END > 245.5 ) END = 0.0; |
| 317 | 1449 char_O_END = (unsigned char)(END + 0.5); |
| 116 | 1450 } |
| 167 | 1451 else // new in v.101 |
| 116 | 1452 { |
| 236 | 1453 ppN2 = 0.0; // new in v.101 |
| 200 | 1454 ppHe = 0.0; // new in v.101 |
| 307 | 1455 char_O_EAD = char_O_END = 0; |
| 116 | 1456 } |
| 1457 | |
| 1458 if(!char_I_step_is_1min) | |
| 192 | 1459 calc_tissue(0); |
| 116 | 1460 else |
| 192 | 1461 calc_tissue(1); |
| 186 | 1462 |
| 192 | 1463 // Calc limit for surface, ie. GF_high. |
| 258 | 1464 calc_limit(); |
| 186 | 1465 |
| 203 | 1466 int_O_gtissue_limit = (short)(calc_lead_tissue_limit * 1000); |
| 338 | 1467 int_O_gtissue_press = (short)((pres_tissue[char_O_gtissue_no] + (pres_tissue+NUM_COMP)[char_O_gtissue_no]) * 1000); |
| 192 | 1468 |
| 1469 // if guiding tissue can not be exposed to surface pressure immediately | |
| 1470 if( calc_lead_tissue_limit > pres_surface && char_O_deco_status == 0) | |
| 116 | 1471 { |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1472 char_O_nullzeit = 0; // deco necessary |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1473 char_O_deco_status = 2; // calculate ascent on next iteration. |
| 116 | 1474 } |
| 171 | 1475 } |
| 1476 | |
| 116 | 1477 |
| 167 | 1478 ////////////////////////////////////////////////////////////////////////////// |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1479 // Compute stops. |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1480 // |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1481 // 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
|
1482 // 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
|
1483 // 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
|
1484 // break the loop when total time > 512msec. |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1485 // |
| 116 | 1486 void calc_hauptroutine_calc_deco(void) |
| 1487 { | |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1488 overlay unsigned char loop; |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1489 |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1490 for(loop = 0; loop < 16; ++loop) |
| 116 | 1491 { |
|
257
f8f869bafd92
Use timer TMR3 to limit loops in calc_hauptroutine_calc_deco()
JeanDo
parents:
252
diff
changeset
|
1492 // Limit loops to 512ms, using the RTC timer 3: |
|
f8f869bafd92
Use timer TMR3 to limit loops in calc_hauptroutine_calc_deco()
JeanDo
parents:
252
diff
changeset
|
1493 if( tmr3() & (512*32) ) |
|
f8f869bafd92
Use timer TMR3 to limit loops in calc_hauptroutine_calc_deco()
JeanDo
parents:
252
diff
changeset
|
1494 break; |
|
f8f869bafd92
Use timer TMR3 to limit loops in calc_hauptroutine_calc_deco()
JeanDo
parents:
252
diff
changeset
|
1495 |
| 241 | 1496 // Do not ascent while doing a gas switch ? |
| 203 | 1497 if( sim_gas_delay <= sim_dive_mins ) |
| 1498 { | |
| 241 | 1499 if( calc_nextdecodepth() ) |
| 1500 { | |
| 1501 if( temp_depth_limit == 0 ) | |
| 1502 goto Surface; | |
| 116 | 1503 |
| 241 | 1504 //---- We hit a stop at temp_depth_limit --------------------- |
| 317 | 1505 temp_deco = temp_depth_limit * METER_TO_BAR // Convert to relative bar, |
| 241 | 1506 + pres_surface; // To absolute. |
| 1507 update_deco_table(); // Adds a one minute stops. | |
| 1508 } | |
| 1509 else | |
| 1510 { | |
| 1511 //---- No stop ----------------------------------------------- | |
| 317 | 1512 temp_deco -= (10*METER_TO_BAR); // Ascend 10m, no wait. |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1513 |
| 241 | 1514 //---- Finish computations once surface is reached ----------- |
| 1515 if( temp_deco <= pres_surface ) | |
| 1516 { | |
| 1517 Surface: | |
|
312
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1518 if( char_O_deco_status == 1 ) // Don't in @+5min variant. |
|
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1519 copy_deco_table(); |
|
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1520 |
|
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1521 calc_ascenttime(); |
|
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1522 char_O_deco_status = 0; // calc nullzeit next time. |
| 323 | 1523 char_O_deco_last_stop = 0; // Surface reached (to animate menu) |
| 241 | 1524 return; |
| 1525 } | |
| 1526 } | |
| 212 | 1527 } |
| 1528 else | |
|
334
4ccdc72ec0e5
BUGFIX minor error in gas-switch algo (spurious surface decostop rarely added).
JeanDo
parents:
326
diff
changeset
|
1529 { |
|
4ccdc72ec0e5
BUGFIX minor error in gas-switch algo (spurious surface decostop rarely added).
JeanDo
parents:
326
diff
changeset
|
1530 // Note: if loop==0, temp_depth_limit might not be already set here. |
|
4ccdc72ec0e5
BUGFIX minor error in gas-switch algo (spurious surface decostop rarely added).
JeanDo
parents:
326
diff
changeset
|
1531 temp_depth_limit = (int)(0.5 + (temp_deco - pres_surface) * BAR_TO_METER); |
| 241 | 1532 update_deco_table(); // Just pass one minute. |
|
334
4ccdc72ec0e5
BUGFIX minor error in gas-switch algo (spurious surface decostop rarely added).
JeanDo
parents:
326
diff
changeset
|
1533 } |
| 197 | 1534 |
| 241 | 1535 //---- Then update tissue -------------------------------------------- |
| 203 | 1536 sim_dive_mins++; // Advance simulated time by 1 minute. |
| 241 | 1537 gas_switch_set(); // Apply any simulated gas change, once validated. |
| 212 | 1538 sim_alveolar_presures(); // Updates ppN2 and ppHe. |
| 192 | 1539 sim_tissue(1); // Simulate compartiments for 1 minute. |
| 116 | 1540 } |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1541 |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1542 // Surface not reached, need more stops... |
| 278 | 1543 char_O_deco_last_stop = temp_depth_limit; // Reached depth. |
| 116 | 1544 } |
| 1545 | |
| 167 | 1546 ////////////////////////////////////////////////////////////////////////////// |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1547 // Simulation ascention to first deco stop. |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1548 // |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1549 // 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
|
1550 // 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
|
1551 // (or we are already in deep shit). |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1552 // |
|
334
4ccdc72ec0e5
BUGFIX minor error in gas-switch algo (spurious surface decostop rarely added).
JeanDo
parents:
326
diff
changeset
|
1553 // Input: pres_respiration |
|
4ccdc72ec0e5
BUGFIX minor error in gas-switch algo (spurious surface decostop rarely added).
JeanDo
parents:
326
diff
changeset
|
1554 // Output: temp_deco |
|
4ccdc72ec0e5
BUGFIX minor error in gas-switch algo (spurious surface decostop rarely added).
JeanDo
parents:
326
diff
changeset
|
1555 // |
|
312
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1556 // 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
|
1557 // before ascent. |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1558 void sim_ascent_to_first_stop(void) |
| 116 | 1559 { |
| 171 | 1560 update_startvalues(); |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1561 clear_deco_table(); |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1562 |
| 200 | 1563 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
|
1564 |
|
312
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1565 // 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
|
1566 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
|
1567 sim_extra_time(); |
|
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1568 |
| 212 | 1569 // Do we have a gas switch going on ? |
| 1570 if( sim_gas_delay > sim_dive_mins ) | |
| 1571 return; | |
| 1572 | |
| 241 | 1573 //---- Loop until first stop, gas switch, or surface is reached ---------- |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1574 for(;;) |
| 116 | 1575 { |
| 241 | 1576 // Try ascending 1 full minute. |
| 317 | 1577 temp_deco -= 10*METER_TO_BAR; // 1 min, at 10m/min. ~ 1bar. |
| 203 | 1578 |
| 212 | 1579 // Compute sim_lead_tissue_limit at GF_low (deepest stop). |
| 1580 sim_limit(GF_low); | |
| 1581 | |
| 1582 // Did we reach deepest remaining stop ? | |
| 241 | 1583 if( temp_deco < sim_lead_tissue_limit ) |
| 212 | 1584 { |
| 317 | 1585 temp_deco += 10*METER_TO_BAR; // Restore last correct depth, |
| 1586 break; // End fast ascent. | |
| 212 | 1587 } |
| 1588 | |
| 203 | 1589 // Did we reach surface ? |
| 1590 if( temp_deco <= pres_surface ) | |
| 1591 { | |
| 1592 temp_deco = pres_surface; // Yes: finished ! | |
| 1593 break; | |
| 1594 } | |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1595 |
| 241 | 1596 // Check for gas change below new depth ? |
|
334
4ccdc72ec0e5
BUGFIX minor error in gas-switch algo (spurious surface decostop rarely added).
JeanDo
parents:
326
diff
changeset
|
1597 temp_depth_limit = (int)(0.5 + (temp_deco - pres_surface) * BAR_TO_METER); |
|
4ccdc72ec0e5
BUGFIX minor error in gas-switch algo (spurious surface decostop rarely added).
JeanDo
parents:
326
diff
changeset
|
1598 assert( temp_depth_limit > 0); |
| 241 | 1599 |
| 1600 if( gas_switch_deepest() ) | |
| 1601 { | |
|
334
4ccdc72ec0e5
BUGFIX minor error in gas-switch algo (spurious surface decostop rarely added).
JeanDo
parents:
326
diff
changeset
|
1602 assert( temp_depth_limit > 0); |
|
4ccdc72ec0e5
BUGFIX minor error in gas-switch algo (spurious surface decostop rarely added).
JeanDo
parents:
326
diff
changeset
|
1603 |
| 317 | 1604 temp_deco = temp_depth_limit * METER_TO_BAR + pres_surface; |
| 212 | 1605 break; |
| 241 | 1606 } |
| 171 | 1607 |
| 203 | 1608 sim_dive_mins++; // Advance simulated time by 1 minute. |
| 241 | 1609 sim_alveolar_presures(); // temp_deco --> ppN2/ppHe |
| 203 | 1610 sim_tissue(1); // and update tissues for 1 min. |
| 1611 } | |
| 167 | 1612 } |
| 116 | 1613 |
| 167 | 1614 ////////////////////////////////////////////////////////////////////////////// |
|
312
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1615 // 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
|
1616 // |
|
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1617 // This routine is used for @+5min feature. |
|
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1618 void sim_extra_time(void) |
|
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1619 { |
|
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1620 overlay unsigned char extra = read_custom_function(58); |
|
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1621 do { |
|
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1622 sim_dive_mins++; // Advance simulated time by 1 minute. |
|
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1623 sim_tissue(1); // and update tissues for 1 min. |
|
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1624 } while( --extra != 0 ); |
|
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1625 } |
|
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1626 |
|
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1627 ////////////////////////////////////////////////////////////////////////////// |
| 167 | 1628 // calc_tissue |
| 1629 // | |
| 116 | 1630 // optimized in v.101 |
| 167 | 1631 // |
| 184 | 1632 static void calc_tissue(PARAMETER unsigned char period) |
| 116 | 1633 { |
| 251 | 1634 assert( 0.00 <= ppN2 && ppN2 < 11.2 ); // 80% N2 at 130m |
| 1635 assert( 0.00 <= ppHe && ppHe < 12.6 ); // 90% He at 130m | |
| 236 | 1636 |
| 338 | 1637 for (ci=0;ci<NUM_COMP;ci++) |
| 126 | 1638 { |
| 258 | 1639 read_buhlmann_times(period); // 2 sec or 1 min period. |
| 116 | 1640 |
| 126 | 1641 // N2 |
| 236 | 1642 temp_tissue = (ppN2 - pres_tissue[ci]) * var_N2_e; |
| 126 | 1643 temp_tissue_safety(); |
| 167 | 1644 pres_tissue[ci] += temp_tissue; |
| 165 | 1645 |
| 126 | 1646 // He |
| 338 | 1647 temp_tissue = (ppHe - (pres_tissue+NUM_COMP)[ci]) * var_He_e; |
| 126 | 1648 temp_tissue_safety(); |
| 338 | 1649 (pres_tissue+NUM_COMP)[ci] += temp_tissue; |
| 192 | 1650 } |
| 167 | 1651 } |
| 116 | 1652 |
| 167 | 1653 ////////////////////////////////////////////////////////////////////////////// |
| 192 | 1654 // calc_limit |
| 167 | 1655 // |
| 192 | 1656 // New in v.111 : separated from calc_tissue(), and depends on GF value. |
| 167 | 1657 // |
| 258 | 1658 static void calc_limit(void) |
| 167 | 1659 { |
| 192 | 1660 char_O_gtissue_no = 255; |
| 1661 calc_lead_tissue_limit = 0.0; | |
| 1662 | |
| 338 | 1663 for(ci=0; ci<NUM_COMP;ci++) |
| 192 | 1664 { |
|
293
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
JeanDo
parents:
292
diff
changeset
|
1665 overlay float N2 = pres_tissue[ci]; |
| 338 | 1666 overlay float He = (pres_tissue+NUM_COMP)[ci]; |
|
293
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
JeanDo
parents:
292
diff
changeset
|
1667 overlay float p = N2 + He; |
| 192 | 1668 |
| 258 | 1669 read_buhlmann_coefficients(); |
|
293
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
JeanDo
parents:
292
diff
changeset
|
1670 var_N2_a = (var_N2_a * N2 + var_He_a * He) / p; |
|
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
JeanDo
parents:
292
diff
changeset
|
1671 var_N2_b = (var_N2_b * N2 + var_He_b * He) / p; |
| 116 | 1672 |
| 192 | 1673 // Apply the Eric Baker's varying gradient factor correction. |
| 1674 // Note: the correction factor depends both on GF and b, | |
| 1675 // Actual values are in the 1.5 .. 1.0 range (for a GF=30%), | |
| 1676 // so that can change who is the leading gas... | |
| 1677 // Note: Also depends of the GF. So the calcul is different for | |
| 1678 // GF_low, current GF, or GF_high... | |
| 1679 // *BUT* calc_tissue() is used to compute bottom time, | |
| 1680 // hence what would happend at surface, | |
| 1681 // hence at GF_high. | |
| 1682 if( char_I_deco_model == 1 ) | |
| 258 | 1683 p = ( p - var_N2_a * GF_high) * var_N2_b |
| 1684 / (GF_high + var_N2_b * (1.0 - GF_high)); | |
| 192 | 1685 else |
| 1686 p = (p - var_N2_a) * var_N2_b; | |
| 258 | 1687 if( p < 0.0 ) p = 0.0; |
| 192 | 1688 |
| 1689 if( p > calc_lead_tissue_limit ) | |
| 1690 { | |
| 1691 char_O_gtissue_no = ci; | |
| 1692 calc_lead_tissue_limit = p; | |
| 1693 } | |
| 1694 } | |
| 197 | 1695 |
| 338 | 1696 assert( char_O_gtissue_no < NUM_COMP ); |
| 197 | 1697 assert( 0.0 <= calc_lead_tissue_limit && calc_lead_tissue_limit <= 14.0); |
| 167 | 1698 } |
| 1699 | |
| 1700 ////////////////////////////////////////////////////////////////////////////// | |
| 1701 // calc_nullzeit | |
| 1702 // | |
| 1703 // calculates the remaining bottom time | |
| 1704 // | |
| 1705 // unchanged in v.101 | |
| 1706 // | |
| 1707 static void calc_nullzeit(void) | |
| 1708 { | |
| 203 | 1709 overlay unsigned char loop; |
| 200 | 1710 update_startvalues(); |
| 167 | 1711 |
| 116 | 1712 char_O_nullzeit = 0; |
| 167 | 1713 for(loop = 1; loop <= 17; loop++) |
| 116 | 1714 { |
| 1715 backup_sim_pres_tissue(); | |
| 197 | 1716 sim_tissue(2); // 10 min. |
| 192 | 1717 sim_limit(GF_high); |
| 167 | 1718 |
| 192 | 1719 if( sim_lead_tissue_limit > pres_surface ) // changed in v.102 , if guiding tissue can not be exposed to surface pressure immediately |
| 185 | 1720 { |
| 1721 restore_sim_pres_tissue(); | |
| 1722 break; | |
| 1723 } | |
| 1724 // Validate once we know its good. | |
| 1725 char_O_nullzeit += 10; | |
| 167 | 1726 } |
| 1727 | |
| 116 | 1728 if (char_O_nullzeit < 60) |
| 1729 { | |
| 167 | 1730 for(loop=1; loop <= 10; loop++) |
| 116 | 1731 { |
| 197 | 1732 sim_tissue(1); // 1 min |
| 192 | 1733 sim_limit(GF_high); |
| 1734 | |
| 1735 if( sim_lead_tissue_limit > pres_surface) // changed in v.102 , if guiding tissue can not be exposed to surface pressure immediately | |
| 185 | 1736 break; |
| 1737 char_O_nullzeit++; | |
| 167 | 1738 } |
| 185 | 1739 } |
| 1740 } | |
| 116 | 1741 |
| 167 | 1742 ////////////////////////////////////////////////////////////////////////////// |
| 1743 // backup_sim_pres_tissue | |
| 1744 // | |
| 116 | 1745 void backup_sim_pres_tissue(void) |
| 1746 { | |
| 167 | 1747 overlay unsigned char x; |
| 1748 | |
| 338 | 1749 for(x = 0; x<2*NUM_COMP; x++) |
| 126 | 1750 sim_pres_tissue_backup[x] = sim_pres_tissue[x]; |
| 167 | 1751 } |
| 116 | 1752 |
| 167 | 1753 ////////////////////////////////////////////////////////////////////////////// |
| 1754 // restore_sim_pres_tissue | |
| 1755 // | |
| 116 | 1756 void restore_sim_pres_tissue(void) |
| 1757 { | |
| 167 | 1758 overlay unsigned char x; |
| 1759 | |
| 338 | 1760 for(x = 0; x<2*NUM_COMP; x++) |
| 126 | 1761 sim_pres_tissue[x] = sim_pres_tissue_backup[x]; |
| 167 | 1762 } |
| 116 | 1763 |
| 167 | 1764 ////////////////////////////////////////////////////////////////////////////// |
| 1765 // calc_ascenttime | |
| 1766 // | |
|
312
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1767 // Summup ascent from bottom to surface, at 1 bar/min, 1min for last 3 meters, |
|
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1768 // and all stops. |
|
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1769 // |
|
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1770 // Result in int_O_ascenttime, or int_O_extra_ascenttime if in @+5min variant. |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1771 static void calc_ascenttime(void) |
| 116 | 1772 { |
| 323 | 1773 overlay unsigned char x; |
| 1774 overlay unsigned short sum; | |
| 168 | 1775 |
| 323 | 1776 // + 0.7 to count 1 minute ascent time from 3 metre to surface |
| 1777 overlay float ascent = pres_respiration - pres_surface + 0.7; | |
| 1778 if (ascent < 0.0) | |
| 1779 ascent = 0.0; | |
| 1780 sum = (unsigned short)(ascent + 0.99); | |
|
312
b7e4e74c0e17
New @5 variant: compute TTS if staying some extra time (CF58) at current depth.
JeanDo
parents:
310
diff
changeset
|
1781 |
| 338 | 1782 for(x=0; x<NUM_STOPS && internal_deco_depth[x]; x++) |
| 323 | 1783 sum += (unsigned short)internal_deco_time[x]; |
| 1784 | |
| 1785 if( char_O_deco_status == 1 ) | |
| 1786 int_O_ascenttime = sum; | |
| 126 | 1787 else |
| 323 | 1788 int_O_extra_ascenttime = sum; |
| 167 | 1789 } |
| 116 | 1790 |
| 167 | 1791 ////////////////////////////////////////////////////////////////////////////// |
| 1792 // update_startvalues | |
| 1793 // | |
| 116 | 1794 // updated in v.102 |
| 167 | 1795 // |
| 116 | 1796 void update_startvalues(void) |
| 1797 { | |
| 167 | 1798 overlay unsigned char x; |
| 116 | 1799 |
| 201 | 1800 // Start ascent simulation with current tissue partial pressures. |
| 338 | 1801 for (x = 0;x<NUM_COMP;x++) |
| 116 | 1802 { |
| 1803 sim_pres_tissue[x] = pres_tissue[x]; | |
| 338 | 1804 (sim_pres_tissue+NUM_COMP)[x] = (pres_tissue+NUM_COMP)[x]; |
| 116 | 1805 } |
| 197 | 1806 |
| 201 | 1807 // No leading tissue (yet) for this ascent simulation. |
| 197 | 1808 sim_lead_tissue_limit = 0.0; |
| 1809 sim_lead_tissue_no = 255; | |
| 167 | 1810 } |
| 116 | 1811 |
| 167 | 1812 ////////////////////////////////////////////////////////////////////////////// |
| 192 | 1813 // sim_tissue |
| 167 | 1814 // |
| 116 | 1815 // optimized in v.101 |
| 167 | 1816 // |
| 1817 // Function very simular to calc_tissue, but: | |
| 1818 // + Use a 1min or 10min period. | |
| 1819 // + Do it on sim_pres_tissue, instead of pres_tissue. | |
| 184 | 1820 static void sim_tissue(PARAMETER unsigned char period) |
| 116 | 1821 { |
| 251 | 1822 assert( 0.00 <= ppN2 && ppN2 < 11.2 ); // 80% N2 at 130m |
| 1823 assert( 0.00 <= ppHe && ppHe < 12.6 ); // 90% He at 130m | |
| 236 | 1824 |
| 338 | 1825 for(ci=0; ci<NUM_COMP; ci++) |
| 126 | 1826 { |
| 258 | 1827 read_buhlmann_times(period); // 1 or 10 minute(s) interval |
| 165 | 1828 |
| 126 | 1829 // N2 |
| 236 | 1830 temp_tissue = (ppN2 - sim_pres_tissue[ci]) * var_N2_e; |
| 126 | 1831 temp_tissue_safety(); |
| 167 | 1832 sim_pres_tissue[ci] += temp_tissue; |
| 126 | 1833 |
| 1834 // He | |
| 338 | 1835 temp_tissue = (ppHe - (sim_pres_tissue+NUM_COMP)[ci]) * var_He_e; |
| 126 | 1836 temp_tissue_safety(); |
| 338 | 1837 (sim_pres_tissue+NUM_COMP)[ci] += temp_tissue; |
| 192 | 1838 } |
| 167 | 1839 } |
| 116 | 1840 |
| 167 | 1841 ////////////////////////////////////////////////////////////////////////////// |
| 192 | 1842 // sim_limit() |
| 1843 // | |
| 1844 // New in v.111 | |
| 1845 // | |
| 1846 // Function separated from sim_tissue() to allow recomputing limit on | |
| 1847 // different depth, because it depends on current gradient factor. | |
| 167 | 1848 // |
| 192 | 1849 static void sim_limit(PARAMETER float GF_current) |
| 116 | 1850 { |
| 212 | 1851 assert( 0.0 < GF_current && GF_current <= 1.0f); |
| 1852 | |
| 192 | 1853 sim_lead_tissue_limit = 0.0; |
| 212 | 1854 sim_lead_tissue_no = 0; // If no one is critic, keep first tissue. |
| 192 | 1855 |
| 338 | 1856 for(ci=0; ci<NUM_COMP; ci++) |
| 192 | 1857 { |
| 241 | 1858 overlay float N2 = sim_pres_tissue[ci]; |
| 338 | 1859 overlay float He = (sim_pres_tissue+NUM_COMP)[ci]; |
| 241 | 1860 overlay float p = N2 + He; |
| 192 | 1861 |
| 258 | 1862 read_buhlmann_coefficients(); |
| 241 | 1863 var_N2_a = (var_N2_a * N2 + var_He_a * He) / p; |
| 1864 var_N2_b = (var_N2_b * N2 + var_He_b * He) / p; | |
| 192 | 1865 |
| 1866 // Apply the Eric Baker's varying gradient factor correction. | |
| 1867 // Note: the correction factor depends both on GF and b, | |
| 1868 // Actual values are in the 1.5 .. 1.0 range (for a GF=30%), | |
| 1869 // so that can change who is the leading gas... | |
| 1870 // Note: Also depends of the GF_current... | |
| 1871 if( char_I_deco_model == 1 ) | |
| 302 | 1872 p = ( p - var_N2_a * GF_current) |
| 1873 / (GF_current / var_N2_b + 1.0 - GF_current); | |
| 192 | 1874 else |
| 1875 p = (p - var_N2_a) * var_N2_b; | |
| 237 | 1876 if( p < 0.0 ) p = 0.0; |
| 192 | 1877 |
| 1878 if( p > sim_lead_tissue_limit ) | |
| 1879 { | |
| 1880 sim_lead_tissue_no = ci; | |
| 1881 sim_lead_tissue_limit = p; | |
| 1882 } | |
| 1883 } // for ci | |
| 197 | 1884 |
| 338 | 1885 assert( sim_lead_tissue_no < NUM_COMP ); |
| 237 | 1886 assert( 0.0 <= sim_lead_tissue_limit && sim_lead_tissue_limit <= 14.0 ); |
| 167 | 1887 } |
| 116 | 1888 |
| 167 | 1889 ////////////////////////////////////////////////////////////////////////////// |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1890 // clear_deco_table |
| 167 | 1891 // |
| 1892 // unchanged in v.101 | |
| 1893 // | |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1894 static void clear_deco_table(void) |
| 116 | 1895 { |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1896 overlay unsigned char x; |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1897 |
| 338 | 1898 for(x=0; x<NUM_STOPS; ++x) |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1899 { |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1900 internal_deco_time [x] = 0; |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1901 internal_deco_depth[x] = 0; |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1902 } |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1903 } |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1904 |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1905 ////////////////////////////////////////////////////////////////////////////// |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1906 // update_deco_table |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1907 // |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1908 // Add 1 min to current stop. |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1909 // |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1910 // Inputs: |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1911 // temp_depth_limit = stop's depth, in meters. |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1912 // In/Out: |
|
275
4310ab395dbe
Keep low_depth in float 32bits (w/o rounding) for a better stability.
JeanDo
parents:
270
diff
changeset
|
1913 // internal_deco_depth[] : depth (in metres) of each stops. |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1914 // internal_deco_time [] : time (in minutes) of each stops. |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1915 // |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1916 static void update_deco_table() |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1917 { |
| 192 | 1918 overlay unsigned char x; |
|
247
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
1919 assert( temp_depth_limit < 128 ); // Can't be negativ (overflown). |
|
ce869aad7440
BUGFIX Count gas switch delay down during ascent (bug bb26)
JeanDo
parents:
241
diff
changeset
|
1920 assert( temp_depth_limit > 0 ); // No stop at surface... |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1921 |
| 338 | 1922 for(x=0; x<NUM_STOPS; ++x) |
| 192 | 1923 { |
| 212 | 1924 // Make sure deco-stops are recorded in order: |
|
334
4ccdc72ec0e5
BUGFIX minor error in gas-switch algo (spurious surface decostop rarely added).
JeanDo
parents:
326
diff
changeset
|
1925 assert( !internal_deco_depth[x] || temp_depth_limit <= (internal_deco_depth[x]& 0x7F) ); |
| 212 | 1926 |
|
279
8514588eb6a2
Mark gas-switch stops for decoplans, displayed in yellow.
JeanDo
parents:
278
diff
changeset
|
1927 if( (internal_deco_depth[x] & 0x7F) == temp_depth_limit ) |
| 192 | 1928 { |
| 1929 // Do not overflow (max 255') | |
| 1930 if( internal_deco_time[x] < 255 ) | |
| 1931 { | |
| 1932 internal_deco_time[x]++; | |
| 1933 return; | |
| 1934 } | |
| 1935 // But store extra in the next stop... | |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1936 } |
| 192 | 1937 |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1938 if( internal_deco_depth[x] == 0 ) |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1939 { |
| 192 | 1940 internal_deco_depth[x] = temp_depth_limit; |
|
279
8514588eb6a2
Mark gas-switch stops for decoplans, displayed in yellow.
JeanDo
parents:
278
diff
changeset
|
1941 if( sim_gas_delay > sim_dive_mins ) |
|
8514588eb6a2
Mark gas-switch stops for decoplans, displayed in yellow.
JeanDo
parents:
278
diff
changeset
|
1942 internal_deco_depth[x] |= 0x80; |
|
8514588eb6a2
Mark gas-switch stops for decoplans, displayed in yellow.
JeanDo
parents:
278
diff
changeset
|
1943 |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1944 internal_deco_time[x] = 1; |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1945 return; |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1946 } |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1947 } |
|
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1948 |
| 192 | 1949 // Can't store stops at more than 96m. |
| 1950 // Or stops at less that 3m too. | |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
1951 // Just do nothing with that... |
| 167 | 1952 } |
| 116 | 1953 |
| 167 | 1954 ////////////////////////////////////////////////////////////////////////////// |
| 1955 // calc_gradient_factor | |
| 1956 // | |
| 165 | 1957 // optimized in v.101 (var_N2_a) |
| 116 | 1958 // new code in v.102 |
| 167 | 1959 // |
| 1960 static void calc_gradient_factor(void) | |
| 116 | 1961 { |
| 197 | 1962 overlay float gf; |
|
293
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
JeanDo
parents:
292
diff
changeset
|
1963 overlay float N2 = pres_tissue[char_O_gtissue_no]; |
| 338 | 1964 overlay float He = (pres_tissue+NUM_COMP)[char_O_gtissue_no]; |
| 237 | 1965 |
| 338 | 1966 assert( char_O_gtissue_no < NUM_COMP ); |
| 237 | 1967 assert( 0.800 <= pres_respiration && pres_respiration < 14.0 ); |
| 197 | 1968 |
|
293
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
JeanDo
parents:
292
diff
changeset
|
1969 // tissue > respiration (currently off-gasing) |
| 302 | 1970 // GF = 0% when respiration == tissue, ie. bubbles are at equilibrium. |
| 1971 // GF = 100% when respiration == limit. | |
|
293
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
JeanDo
parents:
292
diff
changeset
|
1972 temp_tissue = N2 + He; |
|
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
JeanDo
parents:
292
diff
changeset
|
1973 if( temp_tissue <= pres_respiration ) |
| 197 | 1974 gf = 0.0; |
| 1975 else | |
| 1976 { | |
|
293
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
JeanDo
parents:
292
diff
changeset
|
1977 overlay float limit = calc_lead_tissue_limit; |
|
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
JeanDo
parents:
292
diff
changeset
|
1978 // NOTE: in GF model, calc_lead_tissue_limit include already the |
|
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
JeanDo
parents:
292
diff
changeset
|
1979 // correction due to gradient factor. To compute the actual |
|
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
JeanDo
parents:
292
diff
changeset
|
1980 // current GF, we need to (re-)compute the raw ambiant-pressure |
|
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
JeanDo
parents:
292
diff
changeset
|
1981 // limit from the Bühlmann model. |
|
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
JeanDo
parents:
292
diff
changeset
|
1982 if( char_I_deco_model == 1 ) |
|
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
JeanDo
parents:
292
diff
changeset
|
1983 { |
|
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
JeanDo
parents:
292
diff
changeset
|
1984 ci = char_O_gtissue_no; |
|
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
JeanDo
parents:
292
diff
changeset
|
1985 read_buhlmann_coefficients(); |
|
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
JeanDo
parents:
292
diff
changeset
|
1986 var_N2_a = (var_N2_a * N2 + var_He_a * He) / temp_tissue; |
|
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
JeanDo
parents:
292
diff
changeset
|
1987 var_N2_b = (var_N2_b * N2 + var_He_b * He) / temp_tissue; |
|
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
JeanDo
parents:
292
diff
changeset
|
1988 limit = (temp_tissue - var_N2_a) * var_N2_b; |
|
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
JeanDo
parents:
292
diff
changeset
|
1989 } |
|
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
JeanDo
parents:
292
diff
changeset
|
1990 |
|
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
JeanDo
parents:
292
diff
changeset
|
1991 gf = (temp_tissue - pres_respiration) |
|
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
JeanDo
parents:
292
diff
changeset
|
1992 / (temp_tissue - limit) |
|
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
JeanDo
parents:
292
diff
changeset
|
1993 * 100.0; |
|
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
JeanDo
parents:
292
diff
changeset
|
1994 if( gf > 254.5 ) gf = 255.0; |
| 197 | 1995 if( gf < 0.0 ) gf = 0.0; |
| 1996 } | |
|
293
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
JeanDo
parents:
292
diff
changeset
|
1997 char_O_gradient_factor = (unsigned char)(gf+0.5f); |
| 116 | 1998 |
| 1999 if (char_I_deco_model == 1) // calculate relative gradient factor | |
| 2000 { | |
| 197 | 2001 overlay float rgf; |
| 2002 | |
|
293
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
JeanDo
parents:
292
diff
changeset
|
2003 if( low_depth < 1.5 ) |
| 197 | 2004 rgf = GF_high; |
| 2005 else | |
| 2006 { | |
| 317 | 2007 overlay float temp1 = low_depth * METER_TO_BAR; |
| 197 | 2008 overlay float temp2 = pres_respiration - pres_surface; |
| 186 | 2009 |
| 197 | 2010 if (temp2 <= 0) |
| 2011 rgf = GF_high; | |
| 2012 else if (temp2 >= temp1) | |
| 2013 rgf = GF_low; | |
| 2014 else | |
| 2015 rgf = GF_low + (temp1 - temp2)/temp1*GF_delta; | |
| 2016 } | |
| 186 | 2017 |
| 197 | 2018 rgf = gf / rgf; // gf is already in percent |
| 2019 if( rgf < 0.0 ) rgf = 0.0; | |
|
293
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
JeanDo
parents:
292
diff
changeset
|
2020 if( rgf > 254.5 ) rgf = 255.0; |
|
e0083f259552
BUGFIX char_O_gradient_factor calculation in GF model.
JeanDo
parents:
292
diff
changeset
|
2021 char_O_relative_gradient_GF = (unsigned char)(rgf+0.5f); |
| 116 | 2022 } // calc relative gradient factor |
| 2023 else | |
| 2024 { | |
| 186 | 2025 char_O_relative_gradient_GF = char_O_gradient_factor; |
| 116 | 2026 } |
| 167 | 2027 } |
| 116 | 2028 |
| 167 | 2029 ////////////////////////////////////////////////////////////////////////////// |
| 2030 // deco_calc_desaturation_time | |
| 2031 // | |
| 116 | 2032 // FIXED N2_ratio |
| 2033 // unchanged in v.101 | |
|
310
b20fc8c4ac92
Fix EAD/END display (not mm, m with a trailling space)
JeanDo
parents:
307
diff
changeset
|
2034 // Inputs: int_I_pres_surface, ppWater, char_I_desaturation_multiplier |
| 233 | 2035 // Outputs: int_O_desaturation_time, char_O_tissue_saturation[0..31] |
| 167 | 2036 // |
| 116 | 2037 void deco_calc_desaturation_time(void) |
| 2038 { | |
| 338 | 2039 overlay rom const float *ptr; |
| 2040 | |
|
122
3003a8040b78
FIX again reset C data stack and frame pointer when entering C code.
JeanDo
parents:
116
diff
changeset
|
2041 RESET_C_STACK |
|
3003a8040b78
FIX again reset C data stack and frame pointer when entering C code.
JeanDo
parents:
116
diff
changeset
|
2042 |
| 233 | 2043 assert( 800 < int_I_pres_surface && int_I_pres_surface < 1100 ); |
| 2044 assert( 0 < char_I_desaturation_multiplier && char_I_desaturation_multiplier <= 100 ); | |
| 2045 | |
|
260
bde83cac971f
BUGFIX bb13 : deco_calc_desaturation_time() should reset TBLPTR Upper register.
JeanDo
parents:
258
diff
changeset
|
2046 #ifndef CROSS_COMPILE |
|
bde83cac971f
BUGFIX bb13 : deco_calc_desaturation_time() should reset TBLPTR Upper register.
JeanDo
parents:
258
diff
changeset
|
2047 // Note: we don't use far rom pointer, because the |
|
bde83cac971f
BUGFIX bb13 : deco_calc_desaturation_time() should reset TBLPTR Upper register.
JeanDo
parents:
258
diff
changeset
|
2048 // 24 bits is to complex, hence we have to set |
|
bde83cac971f
BUGFIX bb13 : deco_calc_desaturation_time() should reset TBLPTR Upper register.
JeanDo
parents:
258
diff
changeset
|
2049 // the UPPER page ourself... |
|
bde83cac971f
BUGFIX bb13 : deco_calc_desaturation_time() should reset TBLPTR Upper register.
JeanDo
parents:
258
diff
changeset
|
2050 // --> Set zero if tables are moved to lower pages ! |
|
bde83cac971f
BUGFIX bb13 : deco_calc_desaturation_time() should reset TBLPTR Upper register.
JeanDo
parents:
258
diff
changeset
|
2051 _asm |
|
bde83cac971f
BUGFIX bb13 : deco_calc_desaturation_time() should reset TBLPTR Upper register.
JeanDo
parents:
258
diff
changeset
|
2052 movlw 1 |
|
bde83cac971f
BUGFIX bb13 : deco_calc_desaturation_time() should reset TBLPTR Upper register.
JeanDo
parents:
258
diff
changeset
|
2053 movwf TBLPTRU,0 |
|
bde83cac971f
BUGFIX bb13 : deco_calc_desaturation_time() should reset TBLPTR Upper register.
JeanDo
parents:
258
diff
changeset
|
2054 _endasm |
|
bde83cac971f
BUGFIX bb13 : deco_calc_desaturation_time() should reset TBLPTR Upper register.
JeanDo
parents:
258
diff
changeset
|
2055 #endif |
|
bde83cac971f
BUGFIX bb13 : deco_calc_desaturation_time() should reset TBLPTR Upper register.
JeanDo
parents:
258
diff
changeset
|
2056 |
| 237 | 2057 N2_ratio = 0.7902; // FIXED sum as stated in bühlmann |
| 233 | 2058 pres_surface = int_I_pres_surface * 0.001; |
|
310
b20fc8c4ac92
Fix EAD/END display (not mm, m with a trailling space)
JeanDo
parents:
307
diff
changeset
|
2059 ppN2 = N2_ratio * (pres_surface - ppWater); |
| 126 | 2060 int_O_desaturation_time = 0; |
| 2061 float_desaturation_multiplier = char_I_desaturation_multiplier / 142.0; // new in v.101 (70,42%/100.=142) | |
| 233 | 2062 |
| 338 | 2063 ptr = &buhlmann_ht[0]; |
| 2064 for (ci=0;ci<NUM_COMP;ci++) | |
| 126 | 2065 { |
| 338 | 2066 overlay float var_N2_halftime = *ptr++; |
| 2067 overlay float var_He_halftime = *ptr++; | |
| 251 | 2068 overlay unsigned short desat_time; // For a particular compartiment, in min. |
| 2069 overlay float temp1; | |
| 2070 overlay float temp2; | |
| 2071 overlay float temp3; | |
| 2072 overlay float temp4; | |
| 338 | 2073 |
| 2074 assert( 4.0 <= var_N2_halftime && var_N2_halftime <= 635.0 ); | |
| 2075 assert( 1.5099 <= var_He_halftime && var_He_halftime <= 240.03 ); | |
| 2076 | |
| 126 | 2077 // saturation_time (for flight) and N2_saturation in multiples of halftime |
| 2078 // version v.100: 1.1 = 10 percent distance to totally clean (totally clean is not possible, would take infinite time ) | |
| 2079 // new in version v.101: 1.07 = 7 percent distance to totally clean (totally clean is not possible, would take infinite time ) | |
|
260
bde83cac971f
BUGFIX bb13 : deco_calc_desaturation_time() should reset TBLPTR Upper register.
JeanDo
parents:
258
diff
changeset
|
2080 // changes in v.101: 1.05 = 5 percent dist to totally clean is new desaturation point for display and NoFly calculations |
| 126 | 2081 // N2 |
|
260
bde83cac971f
BUGFIX bb13 : deco_calc_desaturation_time() should reset TBLPTR Upper register.
JeanDo
parents:
258
diff
changeset
|
2082 temp1 = 1.05 * ppN2 - pres_tissue[ci]; |
| 236 | 2083 temp2 = ppN2 - pres_tissue[ci]; |
| 126 | 2084 if (temp2 >= 0.0) |
| 2085 { | |
| 233 | 2086 temp1 = 0.0; |
| 2087 temp2 = 0.0; | |
| 126 | 2088 } |
| 2089 else | |
| 2090 temp1 = temp1 / temp2; | |
| 251 | 2091 if( 0.0 < temp1 && temp1 < 1.0 ) |
| 126 | 2092 { |
|
260
bde83cac971f
BUGFIX bb13 : deco_calc_desaturation_time() should reset TBLPTR Upper register.
JeanDo
parents:
258
diff
changeset
|
2093 // 0.6931 is ln(2), because the math function log() calculates with a base of e not 2 as requested. |
|
bde83cac971f
BUGFIX bb13 : deco_calc_desaturation_time() should reset TBLPTR Upper register.
JeanDo
parents:
258
diff
changeset
|
2094 // minus because log is negative. |
|
bde83cac971f
BUGFIX bb13 : deco_calc_desaturation_time() should reset TBLPTR Upper register.
JeanDo
parents:
258
diff
changeset
|
2095 temp1 = log(1.0 - temp1) / -0.6931; // temp1 is the multiples of half times necessary. |
|
bde83cac971f
BUGFIX bb13 : deco_calc_desaturation_time() should reset TBLPTR Upper register.
JeanDo
parents:
258
diff
changeset
|
2096 temp2 = var_N2_halftime * temp1 / float_desaturation_multiplier; // time necessary (in minutes ) for complete desaturation (see comment about 5 percent) , new in v.101: float_desaturation_multiplier |
|
bde83cac971f
BUGFIX bb13 : deco_calc_desaturation_time() should reset TBLPTR Upper register.
JeanDo
parents:
258
diff
changeset
|
2097 |
| 126 | 2098 } |
| 2099 else | |
| 2100 { | |
| 233 | 2101 temp1 = 0.0; |
| 2102 temp2 = 0.0; | |
| 126 | 2103 } |
| 116 | 2104 |
| 126 | 2105 // He |
| 338 | 2106 temp3 = 0.1 - (pres_tissue+NUM_COMP)[ci]; |
| 126 | 2107 if (temp3 >= 0.0) |
| 2108 { | |
| 233 | 2109 temp3 = 0.0; |
| 2110 temp4 = 0.0; | |
| 126 | 2111 } |
| 2112 else | |
| 338 | 2113 temp3 = - temp3 / (pres_tissue+NUM_COMP)[ci]; |
| 251 | 2114 if( 0.0 < temp3 && temp3 < 1.0 ) |
| 126 | 2115 { |
|
260
bde83cac971f
BUGFIX bb13 : deco_calc_desaturation_time() should reset TBLPTR Upper register.
JeanDo
parents:
258
diff
changeset
|
2116 temp3 = log(1.0 - temp3) / -0.6931; // temp1 is the multiples of half times necessary. |
| 126 | 2117 // 0.6931 is ln(2), because the math function log() calculates with a base of e not 2 as requested. |
| 2118 // minus because log is negative | |
| 165 | 2119 temp4 = var_He_halftime * temp3 / float_desaturation_multiplier; // time necessary (in minutes ) for "complete" desaturation, new in v.101 float_desaturation_multiplier |
| 126 | 2120 } |
| 2121 else | |
| 2122 { | |
| 233 | 2123 temp3 = 0.0; |
| 2124 temp4 = 0.0; | |
| 126 | 2125 } |
| 116 | 2126 |
| 126 | 2127 // saturation_time (for flight) |
| 2128 if (temp4 > temp2) | |
| 203 | 2129 desat_time = (unsigned short)temp4; |
| 126 | 2130 else |
| 203 | 2131 desat_time = (unsigned short)temp2; |
| 252 | 2132 |
| 251 | 2133 if(desat_time > int_O_desaturation_time) |
| 2134 int_O_desaturation_time = desat_time; | |
| 116 | 2135 |
| 126 | 2136 // N2 saturation in multiples of halftime for display purposes |
| 2137 temp2 = temp1 * 20.0; // 0 = 1/8, 120 = 0, 249 = 8 | |
| 2138 temp2 = temp2 + 80.0; // set center | |
| 2139 if (temp2 < 0.0) | |
| 2140 temp2 = 0.0; | |
| 2141 if (temp2 > 255.0) | |
| 2142 temp2 = 255.0; | |
| 2143 char_O_tissue_saturation[ci] = (char)temp2; | |
| 233 | 2144 |
| 126 | 2145 // He saturation in multiples of halftime for display purposes |
| 2146 temp4 = temp3 * 20.0; // 0 = 1/8, 120 = 0, 249 = 8 | |
| 2147 temp4 = temp4 + 80.0; // set center | |
| 2148 if (temp4 < 0.0) | |
| 2149 temp4 = 0.0; | |
| 2150 if (temp4 > 255.0) | |
| 2151 temp4 = 255.0; | |
| 338 | 2152 (char_O_tissue_saturation+NUM_COMP)[ci] = (char)temp4; |
| 126 | 2153 } // for |
| 167 | 2154 } |
| 116 | 2155 |
| 167 | 2156 ////////////////////////////////////////////////////////////////////////////// |
| 2157 // calc_wo_deco_step_1_min | |
| 2158 // | |
| 116 | 2159 // FIXED N2 Ratio |
| 2160 // optimized in v.101 (...saturation_multiplier) | |
| 2161 // desaturation slowed down to 70,42% | |
| 167 | 2162 // |
| 2163 static void calc_wo_deco_step_1_min(void) | |
| 116 | 2164 { |
| 251 | 2165 assert( 800 < int_I_pres_surface && int_I_pres_surface < 1100 ); |
| 2166 assert( 800 < int_I_pres_respiration && int_I_pres_respiration < 1100 ); | |
| 2167 assert( 100 <= char_I_saturation_multiplier && char_I_saturation_multiplier < 200 ); | |
| 2168 assert( 0 < char_I_desaturation_multiplier && char_I_desaturation_multiplier <= 100 ); | |
| 2169 | |
| 116 | 2170 if(flag_in_divemode) |
| 2171 { | |
| 2172 flag_in_divemode = 0; | |
| 2173 set_dbg_end_of_dive(); | |
| 2174 } | |
|
122
3003a8040b78
FIX again reset C data stack and frame pointer when entering C code.
JeanDo
parents:
116
diff
changeset
|
2175 |
| 126 | 2176 N2_ratio = 0.7902; // FIXED, sum lt. buehlmann |
| 233 | 2177 pres_respiration = int_I_pres_respiration * 0.001; // assembler code uses different digit system |
| 2178 pres_surface = int_I_pres_surface * 0.001; // the b"uhlmann formula using pres_surface does not use the N2_ratio | |
|
310
b20fc8c4ac92
Fix EAD/END display (not mm, m with a trailling space)
JeanDo
parents:
307
diff
changeset
|
2179 ppN2 = N2_ratio * (pres_respiration - ppWater); // ppWater is the extra pressure in the body |
| 200 | 2180 ppHe = 0.0; |
| 126 | 2181 float_desaturation_multiplier = char_I_desaturation_multiplier / 142.0; // new in v.101 (70,42%/100.=142) |
| 197 | 2182 float_saturation_multiplier = char_I_saturation_multiplier * 0.01; |
| 126 | 2183 |
| 338 | 2184 calc_tissue(1); // update the pressure in the 2*NUM_COMP tissues in accordance with the new ambient pressure |
| 167 | 2185 |
|
169
e26f49674956
Merge decoplan display for both GF and Buhlmann models.
JeanDo
parents:
168
diff
changeset
|
2186 clear_deco_table(); |
| 200 | 2187 char_O_deco_status = 3; // surface new in v.102 : stays in surface state. |
| 126 | 2188 char_O_nullzeit = 0; |
| 168 | 2189 int_O_ascenttime = 0; |
| 323 | 2190 int_O_extra_ascenttime = 0; |
| 126 | 2191 calc_gradient_factor(); |
| 167 | 2192 } |
| 126 | 2193 |
| 167 | 2194 ////////////////////////////////////////////////////////////////////////////// |
| 2195 ////////////////////////////////////////////////////////////////////////////// | |
| 2196 ////////////////////////////////// deco_hash ///////////////////////////////// | |
| 2197 ////////////////////////////////////////////////////////////////////////////// | |
| 2198 ////////////////////////////////////////////////////////////////////////////// | |
| 126 | 2199 |
| 184 | 2200 #ifndef CROSS_COMPILE |
| 116 | 2201 void deco_hash(void) |
| 2202 { | |
| 167 | 2203 overlay unsigned char md_i, md_j; // Loop index. |
| 2204 overlay unsigned char md_t; | |
| 2205 overlay unsigned char md_buffer[16]; | |
| 2206 overlay unsigned char md_temp; | |
| 203 | 2207 overlay unsigned short md_pointer; |
| 167 | 2208 |
|
122
3003a8040b78
FIX again reset C data stack and frame pointer when entering C code.
JeanDo
parents:
116
diff
changeset
|
2209 RESET_C_STACK |
| 126 | 2210 |
| 2211 // init | |
| 164 | 2212 for(md_i=0;md_i<16;md_i++) |
| 126 | 2213 { |
| 2214 md_state[md_i] = 0; | |
| 164 | 2215 char_O_hash[md_i] = 0; |
| 126 | 2216 } // for md_i 16 |
| 116 | 2217 |
| 126 | 2218 _asm |
| 167 | 2219 movlw 0x01 // md_pi address. |
| 2220 movwf TBLPTRU,0 | |
| 2221 movlw 0x7E | |
| 2222 movwf TBLPTRH,0 | |
| 2223 movlw 0x00 | |
| 2224 movwf TBLPTRL,0 | |
| 126 | 2225 _endasm; |
| 165 | 2226 md_i = 0; |
| 2227 do { | |
| 126 | 2228 _asm |
| 2229 TBLRDPOSTINC | |
| 2230 movff TABLAT,md_temp | |
| 2231 _endasm | |
| 165 | 2232 md_pi_subst[md_i++] = md_temp; |
| 2233 } while( md_i != 0 ); | |
| 2234 | |
| 126 | 2235 _asm |
| 167 | 2236 movlw 0x00 |
| 2237 movwf TBLPTRU,0 | |
| 2238 movlw 0x00 | |
| 2239 movwf TBLPTRH,0 | |
| 2240 movlw 0x00 | |
| 2241 movwf TBLPTRL,0 | |
| 126 | 2242 _endasm |
| 167 | 2243 |
| 126 | 2244 // cycle buffers |
| 2245 for (md_pointer=0x0000;md_pointer<0x17f3;md_pointer++) | |
| 2246 { | |
| 2247 md_t = 0; | |
| 2248 for (md_i=0;md_i<16;md_i++) | |
| 2249 { | |
| 2250 if(md_pointer == 9) | |
| 164 | 2251 md_temp = char_O_hash[md_i]; |
| 126 | 2252 else |
| 2253 { | |
| 2254 _asm | |
| 167 | 2255 TBLRDPOSTINC |
| 2256 movff TABLAT,md_temp | |
| 126 | 2257 _endasm |
| 2258 } // else | |
| 167 | 2259 |
| 2260 md_buffer[md_i] = md_temp; | |
| 186 | 2261 md_state[md_i+16] = md_temp; |
| 2262 md_state[md_i+32] = (unsigned char)(md_temp ^ md_state[md_i]); | |
| 126 | 2263 } // for md_i 16 |
| 2264 | |
| 2265 for (md_i=0;md_i<18;md_i++) | |
| 2266 { | |
| 2267 for (md_j=0;md_j<48;md_j++) | |
| 2268 { | |
| 167 | 2269 md_state[md_j] ^= md_pi_subst[md_t]; |
| 126 | 2270 md_t = md_state[md_j]; |
| 2271 } // for md_j 48 | |
| 2272 md_t = (unsigned char)(md_t+1); | |
| 2273 } // for md_i 18 | |
| 164 | 2274 md_t = char_O_hash[15]; |
| 126 | 2275 |
| 2276 for (md_i=0;md_i<16;md_i++) | |
| 2277 { | |
| 167 | 2278 char_O_hash[md_i] ^= md_pi_subst[(md_buffer[md_i] ^ md_t)]; |
| 164 | 2279 md_t = char_O_hash[md_i]; |
| 126 | 2280 } // for md_i 16 |
| 2281 } // for md_pointer | |
| 116 | 2282 } // void deco_hash(void) |
| 184 | 2283 #endif |
| 116 | 2284 |
| 167 | 2285 ////////////////////////////////////////////////////////////////////////////// |
| 2286 // deco_clear_CNS_fraction | |
| 2287 // | |
| 116 | 2288 // new in v.101 |
| 167 | 2289 // |
| 116 | 2290 void deco_clear_CNS_fraction(void) |
| 2291 { | |
|
122
3003a8040b78
FIX again reset C data stack and frame pointer when entering C code.
JeanDo
parents:
116
diff
changeset
|
2292 RESET_C_STACK |
| 237 | 2293 |
| 126 | 2294 CNS_fraction = 0.0; |
| 2295 char_O_CNS_fraction = 0; | |
| 167 | 2296 } |
| 116 | 2297 |
| 167 | 2298 ////////////////////////////////////////////////////////////////////////////// |
| 2299 // deco_calc_CNS_fraction | |
| 2300 // | |
| 116 | 2301 // new in v.101 |
| 2302 // optimized in v.102 : with new variables char_I_actual_ppO2 and actual_ppO2 | |
| 167 | 2303 // |
| 116 | 2304 // Input: char_I_actual_ppO2 |
| 292 | 2305 // char_I_step_is_1min : use 1min steps instead of 2sec. |
| 116 | 2306 // Output: char_O_CNS_fraction |
| 2307 // Uses and Updates: CNS_fraction | |
| 2308 // Uses: acutal_ppO2 | |
| 167 | 2309 // |
| 116 | 2310 void deco_calc_CNS_fraction(void) |
| 2311 { | |
| 167 | 2312 overlay float actual_ppO2; |
| 292 | 2313 overlay float time_factor = 1.0f; |
| 126 | 2314 RESET_C_STACK |
| 167 | 2315 |
| 237 | 2316 assert( 0.0 <= CNS_fraction && CNS_fraction <= 2.5 ); |
| 2317 assert( char_I_actual_ppO2 > 15 ); | |
| 2318 | |
| 126 | 2319 actual_ppO2 = (float)char_I_actual_ppO2 / 100.0; |
| 292 | 2320 if( char_I_step_is_1min ) |
| 2321 time_factor = 30.0f; | |
| 116 | 2322 |
| 126 | 2323 if (char_I_actual_ppO2 < 50) |
| 292 | 2324 ; // no changes |
| 126 | 2325 else if (char_I_actual_ppO2 < 60) |
| 292 | 2326 CNS_fraction += time_factor/(-54000.0 * actual_ppO2 + 54000.0); |
| 126 | 2327 else if (char_I_actual_ppO2 < 70) |
| 292 | 2328 CNS_fraction += time_factor/(-45000.0 * actual_ppO2 + 48600.0); |
| 126 | 2329 else if (char_I_actual_ppO2 < 80) |
| 292 | 2330 CNS_fraction += time_factor/(-36000.0 * actual_ppO2 + 42300.0); |
| 126 | 2331 else if (char_I_actual_ppO2 < 90) |
| 292 | 2332 CNS_fraction += time_factor/(-27000.0 * actual_ppO2 + 35100.0); |
| 126 | 2333 else if (char_I_actual_ppO2 < 110) |
| 292 | 2334 CNS_fraction += time_factor/(-18000.0 * actual_ppO2 + 27000.0); |
| 126 | 2335 else if (char_I_actual_ppO2 < 150) |
| 292 | 2336 CNS_fraction += time_factor/(-9000.0 * actual_ppO2 + 17100.0); |
| 126 | 2337 else if (char_I_actual_ppO2 < 160) |
| 292 | 2338 CNS_fraction += time_factor/(-22500.0 * actual_ppO2 + 37350.0); |
| 126 | 2339 else if (char_I_actual_ppO2 < 165) |
| 292 | 2340 CNS_fraction += time_factor*0.000755; // Arieli et all.(2002): Modeling pulmonary and CNS O2 toxicity... Formula (A1) based on value for 1.55 and c=20 |
| 126 | 2341 else if (char_I_actual_ppO2 < 170) |
| 292 | 2342 CNS_fraction += time_factor*0.00102; // example calculation: Sqrt((1.7/1.55)^20)*0.000404 |
| 126 | 2343 else if (char_I_actual_ppO2 < 175) |
| 292 | 2344 CNS_fraction += time_factor*0.00136; |
| 126 | 2345 else if (char_I_actual_ppO2 < 180) |
| 292 | 2346 CNS_fraction += time_factor*0.00180; |
| 126 | 2347 else if (char_I_actual_ppO2 < 185) |
| 292 | 2348 CNS_fraction += time_factor*0.00237; |
| 126 | 2349 else if (char_I_actual_ppO2 < 190) |
| 292 | 2350 CNS_fraction += time_factor*0.00310; |
| 126 | 2351 else if (char_I_actual_ppO2 < 195) |
| 292 | 2352 CNS_fraction += time_factor*0.00401; |
| 126 | 2353 else if (char_I_actual_ppO2 < 200) |
| 292 | 2354 CNS_fraction += time_factor*0.00517; |
| 126 | 2355 else if (char_I_actual_ppO2 < 230) |
| 292 | 2356 CNS_fraction += time_factor*0.0209; |
| 126 | 2357 else |
| 292 | 2358 CNS_fraction += time_factor*0.0482; // value for 2.5 |
| 116 | 2359 |
| 126 | 2360 if (CNS_fraction > 2.5) |
| 2361 CNS_fraction = 2.5; | |
| 2362 if (CNS_fraction < 0.0) | |
| 2363 CNS_fraction = 0.0; | |
| 2364 | |
| 2365 char_O_CNS_fraction = (char)((CNS_fraction + 0.005)* 100.0); | |
| 167 | 2366 } |
| 116 | 2367 |
| 167 | 2368 ////////////////////////////////////////////////////////////////////////////// |
| 2369 // deco_calc_CNS_decrease_15min | |
| 2370 // | |
| 116 | 2371 // new in v.101 |
| 167 | 2372 // |
| 116 | 2373 // calculates the half time of 90 minutes in 6 steps of 15 min |
| 200 | 2374 // (Used in sleepmode, for low battery mode). |
| 167 | 2375 // |
| 116 | 2376 // Output: char_O_CNS_fraction |
| 2377 // Uses and Updates: CNS_fraction | |
| 167 | 2378 // |
| 116 | 2379 void deco_calc_CNS_decrease_15min(void) |
| 2380 { | |
| 237 | 2381 RESET_C_STACK |
| 2382 assert( 0.0 <= CNS_fraction && CNS_fraction <= 2.5 ); | |
| 2383 | |
| 126 | 2384 CNS_fraction = 0.890899 * CNS_fraction; |
| 167 | 2385 char_O_CNS_fraction = (char)(CNS_fraction * 100.0 + 0.5); |
| 2386 } | |
| 116 | 2387 |
| 167 | 2388 ////////////////////////////////////////////////////////////////////////////// |
| 2389 // deco_calc_percentage | |
| 2390 // | |
| 116 | 2391 // new in v.101 |
| 167 | 2392 // |
| 116 | 2393 // calculates int_I_temp * char_I_temp / 100 |
| 2394 // output is int_I_temp | |
| 200 | 2395 // |
| 2396 // Used to compute NoFly remaining time. | |
|
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2397 // |
| 116 | 2398 void deco_calc_percentage(void) |
| 2399 { | |
|
122
3003a8040b78
FIX again reset C data stack and frame pointer when entering C code.
JeanDo
parents:
116
diff
changeset
|
2400 RESET_C_STACK |
|
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2401 |
| 237 | 2402 assert( 60 <= char_I_temp && char_I_temp <= 100 ); |
| 2403 assert( 0 <= int_I_temp && int_I_temp < 2880 ); // Less than 48h... | |
| 2404 | |
|
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2405 int_I_temp = (unsigned short)(((float)int_I_temp * (float)char_I_temp) * 0.01 ); |
| 237 | 2406 |
| 302 | 2407 assert( int_I_temp < 2880 ); // Less than 48h... |
|
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2408 } |
|
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2409 |
|
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2410 |
|
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2411 ////////////////////////////////////////////////////////////////////////////// |
|
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2412 // deco_gas_volumes |
|
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2413 // |
|
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2414 // new in v.111 |
|
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2415 // |
|
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2416 // calculates volumes for each gas. |
|
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2417 // |
|
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2418 // 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).
JeanDo
parents:
237
diff
changeset
|
2419 // Gas list. |
|
d995e220ddac
BUGFIX Gas Usage when first gas is not #1 (bug BB22).
JeanDo
parents:
237
diff
changeset
|
2420 // char_I_first_gas is the bottom gas. |
|
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2421 // decoplan (char_O_deco_depth, char_O_deco_time). |
|
234
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
JeanDo
parents:
233
diff
changeset
|
2422 // CF#54 == TRUE if shallowest stop first. |
|
275
4310ab395dbe
Keep low_depth in float 32bits (w/o rounding) for a better stability.
JeanDo
parents:
270
diff
changeset
|
2423 // CF#56 == bottom deci-liters/minutes (0.5 .. 50.0) or bar/min. |
|
4310ab395dbe
Keep low_depth in float 32bits (w/o rounding) for a better stability.
JeanDo
parents:
270
diff
changeset
|
2424 // CF#57 == deco deci-liters/minutes (0.5 .. 50.0) or bar/min. |
| 224 | 2425 // 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.
JeanDo
parents:
218
diff
changeset
|
2426 // |
|
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2427 void deco_gas_volumes(void) |
|
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2428 { |
| 338 | 2429 overlay float volumes[NUM_GAS]; |
| 265 | 2430 overlay float bottom_usage, ascent_usage; |
|
234
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
JeanDo
parents:
233
diff
changeset
|
2431 overlay unsigned char i, deepest_first; |
| 241 | 2432 overlay unsigned char gas; |
|
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2433 RESET_C_STACK |
|
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2434 |
|
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2435 //---- initialize with bottom consumption -------------------------------- |
| 338 | 2436 for(i=0; i<NUM_GAS; ++i) // Nothing yet... |
|
240
d995e220ddac
BUGFIX Gas Usage when first gas is not #1 (bug BB22).
JeanDo
parents:
237
diff
changeset
|
2437 volumes[i] = 0.0; |
|
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2438 |
| 338 | 2439 assert(1 <= char_I_first_gas && char_I_first_gas <= NUM_GAS); |
| 241 | 2440 gas = char_I_first_gas - 1; |
| 2441 | |
| 265 | 2442 bottom_usage = read_custom_function(56) * 0.1; |
| 2443 if( bottom_usage > 0.0 ) | |
| 2444 volumes[gas] | |
| 2445 = (char_I_bottom_depth*0.1 + 1.0) // Use Psurface = 1.0 bar. | |
| 2446 * char_I_bottom_time // in minutes. | |
| 2447 * bottom_usage; // In liter/minutes. | |
| 2448 else | |
| 2449 volumes[gas] = 65535.0; | |
|
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2450 |
|
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2451 //---- Ascent usage ------------------------------------------------------ |
|
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2452 |
|
234
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
JeanDo
parents:
233
diff
changeset
|
2453 deepest_first = read_custom_function(54) == 0; |
|
240
d995e220ddac
BUGFIX Gas Usage when first gas is not #1 (bug BB22).
JeanDo
parents:
237
diff
changeset
|
2454 ascent_usage = read_custom_function(57) * 0.1; // In liter/minutes. |
|
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2455 |
| 224 | 2456 // Usage up to the first stop: |
| 2457 // - computed at MAX depth (easier, safer), | |
|
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2458 // - with an ascent speed of 10m/min. |
| 224 | 2459 // - with ascent litter / minutes. |
|
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2460 // - still using bottom gas: |
| 265 | 2461 if( ascent_usage > 0.0 ) |
| 2462 volumes[gas] | |
| 2463 += (char_I_bottom_depth*0.1 + 1.0) // Depth -> bar | |
| 2464 * (char_I_bottom_depth - char_O_first_deco_depth) * 0.1 // ascent time (min) | |
| 2465 * ascent_usage; // Consumption ( xxx / min @ 1 bar) | |
| 2466 else | |
| 2467 volumes[gas] = 65535.0; | |
|
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2468 |
| 338 | 2469 for(i=0; i<NUM_STOPS; ++i) |
|
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2470 { |
| 241 | 2471 overlay unsigned char j; |
|
234
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
JeanDo
parents:
233
diff
changeset
|
2472 overlay unsigned char depth, time, ascent; |
|
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
JeanDo
parents:
233
diff
changeset
|
2473 |
|
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
JeanDo
parents:
233
diff
changeset
|
2474 // Manage stops in reverse order (CF#54) |
|
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
JeanDo
parents:
233
diff
changeset
|
2475 if( deepest_first ) |
|
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
JeanDo
parents:
233
diff
changeset
|
2476 { |
| 241 | 2477 time = char_O_deco_time[i]; |
|
234
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
JeanDo
parents:
233
diff
changeset
|
2478 if( time == 0 ) break; // End of table: done. |
|
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
JeanDo
parents:
233
diff
changeset
|
2479 |
|
288
9feb224f6871
Manage gas-switch marked stops in volume consumption.
JeanDo
parents:
279
diff
changeset
|
2480 ascent = depth = char_O_deco_depth[i] & 0x7F; |
|
234
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
JeanDo
parents:
233
diff
changeset
|
2481 if( i < 31 ) |
|
288
9feb224f6871
Manage gas-switch marked stops in volume consumption.
JeanDo
parents:
279
diff
changeset
|
2482 ascent -= char_O_deco_depth[i+1] & 0x7F; |
|
234
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
JeanDo
parents:
233
diff
changeset
|
2483 } |
|
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
JeanDo
parents:
233
diff
changeset
|
2484 else |
|
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
JeanDo
parents:
233
diff
changeset
|
2485 { |
|
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
JeanDo
parents:
233
diff
changeset
|
2486 time = char_O_deco_time[31-i]; |
|
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
JeanDo
parents:
233
diff
changeset
|
2487 if( time == 0 ) continue; // not yet: still searh table. |
|
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
JeanDo
parents:
233
diff
changeset
|
2488 |
|
288
9feb224f6871
Manage gas-switch marked stops in volume consumption.
JeanDo
parents:
279
diff
changeset
|
2489 ascent = depth = char_O_deco_depth[31-i] & 0x7F; |
|
234
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
JeanDo
parents:
233
diff
changeset
|
2490 if( i < 31 ) |
|
288
9feb224f6871
Manage gas-switch marked stops in volume consumption.
JeanDo
parents:
279
diff
changeset
|
2491 ascent -= char_O_deco_depth[30-i] & 0x7F; |
|
234
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
JeanDo
parents:
233
diff
changeset
|
2492 } |
|
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
JeanDo
parents:
233
diff
changeset
|
2493 |
|
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2494 // Gas switch depth ? |
| 338 | 2495 for(j=0; j<NUM_GAS; ++j) |
|
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2496 { |
|
234
bb8940caebe1
BUGFIX Gas Usage when stops are shallowest first: CF54 (bug BB24).
JeanDo
parents:
233
diff
changeset
|
2497 if( depth <= char_I_deco_gas_change[j] ) |
| 241 | 2498 if( !char_I_deco_gas_change[gas] || (char_I_deco_gas_change[gas] > char_I_deco_gas_change[j]) ) |
| 224 | 2499 gas = j; |
|
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2500 } |
|
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2501 |
|
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2502 // usage during stop: |
| 224 | 2503 // Note: because first gas is not in there, increment gas+1 |
| 265 | 2504 if( ascent_usage > 0.0 ) |
| 2505 volumes[gas] += (depth*0.1 + 1.0) // depth --> bar. | |
| 2506 * time // in minutes. | |
| 2507 * ascent_usage // in xxx / min @ 1bar. | |
| 2508 // Plus usage during ascent to the next stop, at 10m/min. | |
| 2509 + (depth*0.1 + 1.0) | |
|
275
4310ab395dbe
Keep low_depth in float 32bits (w/o rounding) for a better stability.
JeanDo
parents:
270
diff
changeset
|
2510 * ascent*0.1 // metre --> min |
| 265 | 2511 * ascent_usage; |
| 2512 else | |
| 2513 volumes[gas] = 65535.0; | |
|
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2514 } |
|
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2515 |
|
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2516 //---- convert results for the ASM interface ----------------------------- |
| 338 | 2517 for(i=0; i<NUM_GAS; ++i) |
| 224 | 2518 if( volumes[i] > 6553.4 ) |
| 2519 int_O_gas_volumes[i] = 65535; | |
|
222
638f8e17bd51
Prototyping deco_gas_volumes() to compute gas consumption per tank with decoplanning.
JeanDo
parents:
218
diff
changeset
|
2520 else |
| 224 | 2521 int_O_gas_volumes[i] = (unsigned short)(volumes[i]*10.0 + 0.5); |
| 116 | 2522 } |
| 2523 | |
| 167 | 2524 ////////////////////////////////////////////////////////////////////////////// |
| 2525 | |
| 116 | 2526 void deco_push_tissues_to_vault(void) |
| 2527 { | |
| 167 | 2528 overlay unsigned char x; |
|
122
3003a8040b78
FIX again reset C data stack and frame pointer when entering C code.
JeanDo
parents:
116
diff
changeset
|
2529 RESET_C_STACK |
| 167 | 2530 |
| 116 | 2531 cns_vault = CNS_fraction; |
| 338 | 2532 for (x=0;x<2*NUM_COMP;x++) |
| 167 | 2533 pres_tissue_vault[x] = pres_tissue[x]; |
| 116 | 2534 } |
| 167 | 2535 |
| 116 | 2536 void deco_pull_tissues_from_vault(void) |
| 2537 { | |
| 167 | 2538 overlay unsigned char x; |
|
122
3003a8040b78
FIX again reset C data stack and frame pointer when entering C code.
JeanDo
parents:
116
diff
changeset
|
2539 RESET_C_STACK |
| 167 | 2540 |
| 338 | 2541 for (x=0;x<2*NUM_COMP;x++) |
| 167 | 2542 pres_tissue[x] = pres_tissue_vault[x]; |
| 292 | 2543 |
| 2544 // Restore both CNS variable, too. | |
| 2545 CNS_fraction = cns_vault; | |
| 2546 char_O_CNS_fraction = (char)(CNS_fraction * 100.0 + 0.5); | |
| 116 | 2547 } |
| 2548 | |
| 167 | 2549 ////////////////////////////////////////////////////////////////////////////// |
| 2550 // | |
| 184 | 2551 #ifndef CROSS_COMPILE |
| 2552 void main() {} | |
| 2553 #endif |