Mercurial > public > mk2
annotate code_part1/OSTC_code_c_part2/p2_deco.c @ 264:d9593e0f1eea
Safer rounding (bug bb29)
| author | JeanDo |
|---|---|
| date | Tue, 12 Apr 2011 00:36:23 +0200 |
| parents | 9d4ab7c96885 |
| children | ab8ce7de2b46 |
| 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! |
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69 // 2011/01/25: [jDG] Fusion deco array for both models. |
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70 // 2011/01/25: [jDG] Use CF(54) to reverse deco order. |
| 193 | 71 // 2011/02/11: [jDG] Reworked gradient-factor implementation. |
| 197 | 72 // 2011/02/13: [jDG] CF55 for additional gas switch delay in decoplan. |
| 217 | 73 // 2011/02/24: [jDG] Fixed inconsistencies introduced by gas switch delays. |
|
257
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74 // 2011/04/10: [jDG] Use timer TMR3 to limit loops in calc_hauptroutine_calc_deco() |
| 116 | 75 // |
| 167 | 76 // TODO: |
| 77 // + Allow to abort MD2 calculation (have to restart next time). | |
| 78 // | |
| 79 // Literature: | |
| 200 | 80 // Bühlmann, Albert: Tauchmedizin; 4. Auflage [2002]; |
| 116 | 81 // 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 |
| 82 // Morrison, Stuart; 2000; DIY DECOMPRESSION; http://www.lizardland.co.uk/DIYDeco.html | |
| 83 // Balthasar, Steffen; Dekompressionstheorie I: Neo Haldane Modelle; http://www.txfreak.de/dekompressionstheorie_1.pdf | |
| 84 // Baker, Erik C.; Clearing Up The Confusion About "Deep Stops" | |
| 85 // Baker, Erik C.; Understanding M-values; http://www.txfreak.de/understanding_m-values.pdf | |
| 167 | 86 // |
| 87 // | |
| 116 | 88 |
| 89 // ********************* | |
| 90 // ** I N C L U D E S ** | |
| 91 // ********************* | |
| 92 #include <math.h> | |
| 167 | 93 |
| 192 | 94 // *********************************************** |
| 95 // ** V A R I A B L E S D E F I N I T I O N S ** | |
| 96 // *********************************************** | |
| 97 | |
| 98 #include "p2_definitions.h" | |
| 99 #include "shared_definitions.h" | |
| 100 | |
| 200 | 101 // Water vapour partial pressure in the lumb. |
| 233 | 102 #define ppWVapour 0.0627 |
| 200 | 103 |
| 167 | 104 // ************************* |
| 105 // ** P R O T O T Y P E S ** | |
| 106 // ************************* | |
| 107 | |
| 108 static void calc_hauptroutine(void); | |
| 109 static void calc_nullzeit(void); | |
| 110 | |
| 192 | 111 static void calc_tissue(PARAMETER unsigned char period); |
| 258 | 112 static void calc_limit(void); |
| 192 | 113 |
| 167 | 114 static void clear_tissue(void); |
| 115 static void calc_ascenttime(void); | |
| 116 static void update_startvalues(void); | |
|
169
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117 static void clear_deco_table(void); |
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118 static void update_deco_table(void); |
| 192 | 119 |
| 120 static void backup_sim_pres_tissue(void); | |
| 121 static void restore_sim_pres_tissue(void); | |
| 122 static void sim_tissue(PARAMETER unsigned char period); | |
| 123 static void sim_limit(PARAMETER float GF_current); | |
| 167 | 124 static void calc_gradient_factor(void); |
| 125 static void calc_wo_deco_step_1_min(void); | |
| 126 | |
| 127 static void calc_hauptroutine_data_input(void); | |
| 128 static void calc_hauptroutine_update_tissues(void); | |
| 129 static void calc_hauptroutine_calc_deco(void); | |
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130 static void sim_ascent_to_first_stop(void); |
| 167 | 131 |
| 241 | 132 static unsigned char gas_switch_deepest(void); |
| 133 static void gas_switch_set(void); | |
| 217 | 134 |
| 241 | 135 static unsigned char calc_nextdecodepth(void); |
| 116 | 136 |
| 200 | 137 //---- Bank 4 parameters ----------------------------------------------------- |
| 163 | 138 #pragma udata bank4=0x400 |
| 116 | 139 |
| 140 static float temp_limit; | |
| 141 static float GF_low; | |
| 142 static float GF_high; | |
| 143 static float GF_delta; | |
| 192 | 144 static unsigned char low_depth; // Depth of deepest stop |
| 145 static float locked_GF_step; // GF_delta / low_depth | |
| 146 | |
| 147 static unsigned char temp_depth_limit; | |
| 171 | 148 |
| 192 | 149 // Simulation context: used to predict ascent. |
| 150 static unsigned char sim_lead_tissue_no; // Leading compatiment number. | |
| 151 static float sim_lead_tissue_limit; // Buhlmann tolerated pressure. | |
| 116 | 152 |
| 192 | 153 // Real context: what we are doing now. |
| 154 static float calc_lead_tissue_limit; // | |
| 116 | 155 |
|
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156 static unsigned char internal_deco_time[32]; |
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157 static unsigned char internal_deco_depth[32]; |
| 116 | 158 |
| 159 static float cns_vault; | |
| 160 static float pres_tissue_vault[32]; | |
| 161 | |
| 163 | 162 //---- Bank 5 parameters ----------------------------------------------------- |
| 163 #pragma udata bank5=0x500 | |
| 164 | |
| 167 | 165 static unsigned char ci; |
| 116 | 166 static float pres_respiration; |
| 167 static float pres_surface; | |
| 168 static float temp_deco; | |
| 236 | 169 static float ppN2; |
| 200 | 170 static float ppHe; |
| 116 | 171 static float temp_tissue; |
| 200 | 172 static float N2_ratio; // Breathed gas nitrogen ratio. |
| 173 static float He_ratio; // Breathed gas helium ratio. | |
| 174 static float var_N2_a; // Bühlmann a, for current N2 tissue. | |
| 175 static float var_N2_b; // Bühlmann b, for current N2 tissue. | |
| 176 static float var_He_a; // Bühlmann a, for current He tissue. | |
| 177 static float var_He_b; // Bühlmann b, for current He tissue. | |
| 178 static float var_N2_e; // Exposition, for current N2 tissue. | |
| 179 static float var_He_e; // Exposition, for current He tissue. | |
| 116 | 180 |
| 164 | 181 static float pres_diluent; // new in v.101 |
| 182 static float const_ppO2; // new in v.101 | |
| 183 static float deco_ppO2_change; // new in v.101 | |
| 184 static float deco_ppO2; // new in v.101 | |
| 116 | 185 |
| 241 | 186 static unsigned char sim_gas_last_depth; // Depth of last used gas, to detected a gas switch. |
| 187 static unsigned char sim_gas_last_used; // Number of last used gas, to detected a gas switch. | |
| 203 | 188 static unsigned short sim_gas_delay; // Time of gas-switch-stop ends [min on dive]. |
| 189 static unsigned short sim_dive_mins; // Simulated dive time. | |
| 200 | 190 static float calc_N2_ratio; // Simulated (switched) nitrogen ratio. |
| 191 static float calc_He_ratio; // Simulated (switched) helium ratio. | |
| 192 static float CNS_fraction; // new in v.101 | |
| 193 static float float_saturation_multiplier; // new in v.101 | |
| 194 static float float_desaturation_multiplier; // new in v.101 | |
| 167 | 195 static float float_deco_distance; // new in v.101 |
| 196 static char flag_in_divemode; // new in v.108 | |
| 197 | |
| 225 | 198 static unsigned char deco_gas_change[5]; // new in v.109 |
| 167 | 199 |
| 163 | 200 //---- Bank 6 parameters ----------------------------------------------------- |
| 201 #pragma udata bank6=0x600 | |
| 116 | 202 |
| 197 | 203 float pres_tissue[32]; |
| 116 | 204 |
| 163 | 205 //---- Bank 7 parameters ----------------------------------------------------- |
| 206 #pragma udata bank7=0x700 | |
| 207 | |
| 197 | 208 float sim_pres_tissue[32]; // 32 floats = 128 bytes. |
| 116 | 209 static float sim_pres_tissue_backup[32]; |
| 210 | |
| 163 | 211 //---- Bank 8 parameters ----------------------------------------------------- |
| 116 | 212 #pragma udata bank8=0x800 |
| 163 | 213 |
| 116 | 214 static char md_pi_subst[256]; |
|
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215 #define C_STACK md_pi_subst // Overlay C-code data stack here, too. |
| 116 | 216 |
| 163 | 217 //---- Bank 9 parameters ----------------------------------------------------- |
| 167 | 218 #pragma udata bank9=0x900 |
| 116 | 219 |
| 163 | 220 static char md_state[48]; // DONT MOVE !! // has to be at the beginning of bank 9 for the asm code!!! |
| 116 | 221 |
| 164 | 222 // internal, dbg: |
| 167 | 223 static unsigned char DBG_char_I_deco_model; // new in v.108. |
| 164 | 224 static unsigned char DBG_char_I_depth_last_deco; // new in v.108 |
| 212 | 225 static unsigned char DBG_deco_gas_change; // new in v.108 |
| 224 | 226 static unsigned char DBG_deco_N2_ratio; // new in v.108 |
| 227 static unsigned char DBG_deco_He_ratio; // new in v.108 | |
| 164 | 228 static float DBG_pres_surface; // new in v.108 |
| 229 static float DBG_GF_low; // new in v.108 | |
| 230 static float DBG_GF_high; // new in v.108 | |
| 231 static float DBG_const_ppO2; // new in v.108 | |
| 232 static float DBG_deco_ppO2_change; // new in v.108 | |
| 233 static float DBG_deco_ppO2; // new in v.108 | |
| 234 static float DBG_float_saturation_multiplier; // new in v.108 | |
| 235 static float DBG_float_desaturation_multiplier; // new in v.108 | |
| 236 static float DBG_float_deco_distance; // new in v.108 | |
| 237 static float DBG_N2_ratio; // new in v.108 | |
| 238 static float DBG_He_ratio; // new in v.108 | |
| 239 | |
| 167 | 240 ////////////////////////////////////////////////////////////////////////////// |
| 241 ////////////////////////////////////////////////////////////////////////////// | |
| 242 ///////////////////////////// THE LOOKUP TABLES ////////////////////////////// | |
| 243 ////////////////////////////////////////////////////////////////////////////// | |
| 244 ////////////////////////////////////////////////////////////////////////////// | |
| 245 // | |
| 246 // End of PROM code is 17F00, So push tables on PROM top... | |
| 247 // | |
| 248 #pragma romdata buhlmann_tables = 0x017B00 // Needs to be in UPPER bank. | |
| 249 #include "p2_tables.romdata" // new table for deco_main_v.101 (var_N2_a modified) | |
| 116 | 250 |
| 167 | 251 // Magic table to compute the MD2 HASH |
| 252 // | |
| 253 #pragma romdata hash_tables = 0x017E00 // Address fixed by ASM access... | |
| 203 | 254 rom const rom unsigned short md_pi[] = |
| 116 | 255 { |
| 256 0x292E, 0x43C9, 0xA2D8, 0x7C01, 0x3D36, 0x54A1, 0xECF0, 0x0613 | |
| 257 , 0x62A7, 0x05F3, 0xC0C7, 0x738C, 0x9893, 0x2BD9, 0xBC4C, 0x82CA | |
| 258 , 0x1E9B, 0x573C, 0xFDD4, 0xE016, 0x6742, 0x6F18, 0x8A17, 0xE512 | |
| 259 , 0xBE4E, 0xC4D6, 0xDA9E, 0xDE49, 0xA0FB, 0xF58E, 0xBB2F, 0xEE7A | |
| 260 , 0xA968, 0x7991, 0x15B2, 0x073F, 0x94C2, 0x1089, 0x0B22, 0x5F21 | |
| 261 , 0x807F, 0x5D9A, 0x5A90, 0x3227, 0x353E, 0xCCE7, 0xBFF7, 0x9703 | |
| 262 , 0xFF19, 0x30B3, 0x48A5, 0xB5D1, 0xD75E, 0x922A, 0xAC56, 0xAAC6 | |
| 263 , 0x4FB8, 0x38D2, 0x96A4, 0x7DB6, 0x76FC, 0x6BE2, 0x9C74, 0x04F1 | |
| 264 , 0x459D, 0x7059, 0x6471, 0x8720, 0x865B, 0xCF65, 0xE62D, 0xA802 | |
| 265 , 0x1B60, 0x25AD, 0xAEB0, 0xB9F6, 0x1C46, 0x6169, 0x3440, 0x7E0F | |
| 266 , 0x5547, 0xA323, 0xDD51, 0xAF3A, 0xC35C, 0xF9CE, 0xBAC5, 0xEA26 | |
| 267 , 0x2C53, 0x0D6E, 0x8528, 0x8409, 0xD3DF, 0xCDF4, 0x4181, 0x4D52 | |
| 268 , 0x6ADC, 0x37C8, 0x6CC1, 0xABFA, 0x24E1, 0x7B08, 0x0CBD, 0xB14A | |
| 269 , 0x7888, 0x958B, 0xE363, 0xE86D, 0xE9CB, 0xD5FE, 0x3B00, 0x1D39 | |
| 270 , 0xF2EF, 0xB70E, 0x6658, 0xD0E4, 0xA677, 0x72F8, 0xEB75, 0x4B0A | |
| 271 , 0x3144, 0x50B4, 0x8FED, 0x1F1A, 0xDB99, 0x8D33, 0x9F11, 0x8314 | |
| 272 }; | |
| 273 | |
| 167 | 274 ////////////////////////////////////////////////////////////////////////////// |
| 275 ////////////////////////////////////////////////////////////////////////////// | |
| 276 ////////////////////////////// THE SUBROUTINES /////////////////////////////// | |
| 277 ////////////////////////////////////////////////////////////////////////////// | |
| 278 ////////////////////////////////////////////////////////////////////////////// | |
| 279 // | |
| 116 | 280 // all new in v.102 |
| 281 // moved from 0x0D000 to 0x0C000 in v.108 | |
| 282 | |
| 283 #pragma code p2_deco = 0x0C000 | |
| 284 | |
| 167 | 285 ////////////////////////////////////////////////////////////////////////////// |
| 286 // DBS - debug on start of dive | |
| 287 // | |
| 288 static void create_dbs_set_dbg_and_ndl20mtr(void) | |
| 116 | 289 { |
| 167 | 290 overlay char i; // Local loop index. |
| 291 | |
| 292 //---- Reset DEBUG bit fields -------------------------------------------- | |
| 116 | 293 int_O_DBS_bitfield = 0; |
| 294 int_O_DBS2_bitfield = 0; | |
| 295 if(int_O_DBG_pre_bitfield & DBG_RUN) | |
| 296 int_O_DBG_pre_bitfield = DBG_RESTART; | |
| 297 else | |
| 298 int_O_DBG_pre_bitfield = DBG_RUN; | |
| 299 int_O_DBG_post_bitfield = 0; | |
| 167 | 300 |
| 301 //---- Set 20meters ND limit --------------------------------------------- | |
| 116 | 302 char_O_NDL_at_20mtr = 255; |
| 303 | |
| 167 | 304 //---- Copy all dive parameters ------------------------------------------ |
| 116 | 305 DBG_N2_ratio = N2_ratio; |
| 306 DBG_He_ratio = He_ratio; | |
| 307 DBG_char_I_deco_model = char_I_deco_model; | |
| 308 DBG_char_I_depth_last_deco = char_I_depth_last_deco; | |
| 309 DBG_pres_surface = pres_surface; | |
| 310 DBG_GF_low = GF_low; | |
| 311 DBG_GF_high = GF_high; | |
| 312 DBG_const_ppO2 = const_ppO2; | |
| 313 DBG_deco_ppO2_change = deco_ppO2_change; | |
| 314 DBG_deco_ppO2 = deco_ppO2; | |
| 224 | 315 DBG_deco_N2_ratio = char_I_deco_N2_ratio[0]; |
| 316 DBG_deco_He_ratio = char_I_deco_He_ratio[0]; | |
| 225 | 317 DBG_deco_gas_change = deco_gas_change[0]; |
| 116 | 318 DBG_float_saturation_multiplier = float_saturation_multiplier; |
| 319 DBG_float_desaturation_multiplier = float_desaturation_multiplier; | |
| 320 DBG_float_deco_distance = float_deco_distance; | |
| 321 | |
| 167 | 322 //---- Setup some error (?) conditions ----------------------------------- |
| 116 | 323 if(char_I_deco_model) |
| 324 int_O_DBS_bitfield |= DBS_mode; | |
| 325 if(const_ppO2) | |
| 326 int_O_DBS_bitfield |= DBS_ppO2; | |
| 167 | 327 for(i = 16; i < 32; i++) |
| 328 if(pres_tissue[i]) | |
| 116 | 329 int_O_DBS_bitfield |= DBS_HE_sat; |
| 330 if(deco_ppO2_change) | |
| 331 int_O_DBS_bitfield |= DBS_ppO2chg; | |
| 332 if(float_saturation_multiplier < 0.99) | |
| 333 int_O_DBS_bitfield |= DBS_SAT2l; | |
| 334 if(float_saturation_multiplier > 1.3) | |
| 335 int_O_DBS_bitfield |= DBS_SAT2h; | |
| 336 if(GF_low < 0.19) | |
| 337 int_O_DBS_bitfield |= DBS_GFLOW2l; | |
| 338 if(GF_low > 1.01) | |
| 339 int_O_DBS_bitfield |= DBS_GFLOW2h; | |
| 340 if(GF_high < 0.6) | |
| 341 int_O_DBS_bitfield |= DBS_GFHGH2l; | |
| 342 if(GF_high > 1.01) | |
| 343 int_O_DBS_bitfield |= DBS_GFHGH2h; | |
| 344 if((N2_ratio + He_ratio) > 0.95) | |
| 345 int_O_DBS_bitfield |= DBS_GASO22l; | |
| 346 if((N2_ratio + He_ratio) < 0.05) | |
| 347 int_O_DBS_bitfield |= DBS_GASO22h; | |
| 348 if(float_deco_distance > 0.25) | |
| 349 int_O_DBS_bitfield |= DBS_DIST2h; | |
| 350 if(char_I_depth_last_deco > 8) | |
| 351 int_O_DBS_bitfield |= DBS_LAST2h; | |
| 224 | 352 if(DBG_deco_gas_change && ((char_I_deco_N2_ratio[0] + char_I_deco_He_ratio[0]) > 95)) |
| 116 | 353 int_O_DBS_bitfield |= DBS_DECOO2l; |
| 224 | 354 if(DBG_deco_gas_change && ((char_I_deco_N2_ratio[0] + char_I_deco_He_ratio[0]) < 5)) |
| 116 | 355 int_O_DBS_bitfield |= DBS_DECOO2h; |
| 356 if(pres_respiration > 3.0) | |
| 357 int_O_DBS2_bitfield |= DBS2_PRES2h; | |
| 358 if(pres_surface - pres_respiration > 0.2) | |
| 359 int_O_DBS2_bitfield |= DBS2_PRES2l; | |
| 360 if(pres_surface < 0.75) | |
| 361 int_O_DBS2_bitfield |= DBS2_SURF2l; | |
| 362 if(pres_surface > 1.11) | |
| 363 int_O_DBS2_bitfield |= DBS2_SURF2h; | |
| 364 if(float_desaturation_multiplier < 0.70) | |
| 365 int_O_DBS2_bitfield |= DBS2_DESAT2l; | |
| 366 if(float_desaturation_multiplier > 1.01) | |
| 367 int_O_DBS2_bitfield |= DBS2_DESAT2h; | |
| 368 if(GF_low > GF_high) | |
| 369 int_O_DBS2_bitfield |= DBS2_GFDneg; | |
| 370 } | |
| 371 | |
| 167 | 372 ////////////////////////////////////////////////////////////////////////////// |
| 373 // DBG - set DBG to end_of_dive | |
| 374 // | |
| 375 static void set_dbg_end_of_dive(void) | |
| 116 | 376 { |
| 377 int_O_DBG_pre_bitfield &= (~DBG_RUN); | |
| 378 int_O_DBG_post_bitfield &= (~DBG_RUN); | |
| 379 } | |
| 380 | |
| 167 | 381 ////////////////////////////////////////////////////////////////////////////// |
| 382 // DBG - NDL at first 20 m. hit | |
| 383 // | |
| 384 static void check_ndl(void) | |
| 116 | 385 { |
| 167 | 386 if( char_O_NDL_at_20mtr == 255 // Still in NDL mode ? |
| 387 && int_I_pres_respiration > 3000 // And we hit the 20m limit ? | |
| 388 ) | |
| 116 | 389 { |
| 167 | 390 char_O_NDL_at_20mtr = char_O_nullzeit; // change to max bottom time. |
| 391 if( char_O_NDL_at_20mtr == 255) // and avoid confusion. | |
| 184 | 392 char_O_NDL_at_20mtr = 254; |
| 116 | 393 } |
| 394 } | |
| 395 | |
| 167 | 396 ////////////////////////////////////////////////////////////////////////////// |
| 397 // DBG - multi main during dive | |
| 398 // | |
| 184 | 399 static void check_dbg(PARAMETER char is_post_check) |
| 116 | 400 { |
| 203 | 401 overlay unsigned short temp_DBS = 0; |
| 200 | 402 overlay unsigned char i; // Local loop index. |
| 167 | 403 |
| 116 | 404 if( (DBG_N2_ratio != N2_ratio) || (DBG_He_ratio != He_ratio) ) |
| 405 temp_DBS |= DBG_c_gas; | |
| 406 if(DBG_const_ppO2 != const_ppO2) | |
| 407 temp_DBS |= DBG_c_ppO2; | |
| 167 | 408 if( DBG_float_saturation_multiplier != float_saturation_multiplier |
| 409 || DBG_float_desaturation_multiplier != float_desaturation_multiplier | |
| 410 ) | |
| 116 | 411 temp_DBS |= DBG_CdeSAT; |
| 412 if(DBG_char_I_deco_model != char_I_deco_model) | |
| 413 temp_DBS |= DBG_C_MODE; | |
| 414 if(DBG_pres_surface != pres_surface) | |
| 415 temp_DBS |= DBG_C_SURF; | |
| 167 | 416 |
| 417 if( !DBS_HE_sat && !He_ratio) | |
| 418 for(i = 16; i < 32; i++) | |
| 419 if(pres_tissue[i]) | |
| 116 | 420 temp_DBS |= DBG_HEwoHE; |
| 167 | 421 |
| 116 | 422 if(DBG_deco_ppO2 != deco_ppO2) |
| 423 temp_DBS |= DBG_C_DPPO2; | |
| 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 ////////////////////////////////////////////////////////////////////////////// |
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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 | |
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477 temp10 = line; // Show source line number as stack depth. |
| 235 | 478 PLED_resetdebugger(); |
| 479 } | |
| 480 #endif | |
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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 ////////////////////////////////////////////////////////////////////////////// | |
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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 ////////////////////////////////////////////////////////////////////////////// | |
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534 // Fast subroutine to read RTC timer 3. |
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535 // Note: result is in 1/32 of msecs. |
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536 static unsigned short tmr3(void) |
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537 { |
| 261 | 538 #ifndef CROSS_COMPILE |
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539 _asm |
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540 movff 0xfb2,PRODL // TMR3L |
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541 movff 0xfb3,PRODH // TMR3H |
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542 _endasm // result in PRODH:PRODL. |
| 261 | 543 #else |
| 544 return 0; | |
| 545 #endif | |
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546 } |
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547 |
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548 ////////////////////////////////////////////////////////////////////////////// |
| 258 | 549 // read buhlmann tables A and B for compatriment ci |
| 550 // | |
| 551 static void read_buhlmann_coefficients(void) | |
| 165 | 552 { |
| 184 | 553 #ifndef CROSS_COMPILE |
| 167 | 554 // Note: we don't use far rom pointer, because the |
| 555 // 24 bits is to complex, hence we have to set | |
| 556 // the UPPER page ourself... | |
| 557 // --> Set zero if tables are moved to lower pages ! | |
| 558 _asm | |
| 559 movlw 1 | |
| 560 movwf TBLPTRU,0 | |
| 561 _endasm | |
| 184 | 562 #endif |
| 258 | 563 |
| 197 | 564 assert( 0 <= ci && ci < 16 ); |
| 165 | 565 var_N2_a = buhlmann_a[ci]; |
| 566 var_N2_b = buhlmann_b[ci]; | |
| 167 | 567 var_He_a = (buhlmann_a+16)[ci]; |
| 568 var_He_b = (buhlmann_b+16)[ci]; | |
| 569 | |
| 165 | 570 // Check reading consistency: |
| 571 if( (var_N2_a < 0.231) | |
| 572 || (var_N2_a > 1.27) | |
| 573 || (var_N2_b < 0.504) | |
| 574 || (var_N2_b > 0.966) | |
| 575 || (var_He_a < 0.510) | |
| 576 || (var_He_a > 1.75) | |
| 577 || (var_He_b < 0.423) | |
| 578 || (var_He_b > 0.927) | |
| 579 ) | |
| 258 | 580 int_O_DBG_pre_bitfield |= DBG_ZH16ERR; |
| 581 } | |
| 582 | |
| 583 ////////////////////////////////////////////////////////////////////////////// | |
| 584 // read buhlmann tables for compatriment ci | |
| 585 // If period == 0 : 2sec interval | |
| 586 // 1 : 1 min interval | |
| 587 // 2 : 10 min interval. | |
| 588 static void read_buhlmann_times(PARAMETER char period) | |
| 589 { | |
| 590 #ifndef CROSS_COMPILE | |
| 591 // Note: we don't use far rom pointer, because the | |
| 592 // 24 bits is to complex, hence we have to set | |
| 593 // the UPPER page ourself... | |
| 594 // --> Set zero if tables are moved to lower pages ! | |
| 595 _asm | |
| 596 movlw 1 | |
| 597 movwf TBLPTRU,0 | |
| 598 _endasm | |
| 599 #endif | |
| 600 assert( 0 <= ci && ci < 16 ); | |
| 601 | |
| 165 | 602 // Integration intervals. |
| 167 | 603 switch(period) |
| 165 | 604 { |
| 605 case 0: //---- 2 sec ----------------------------------------------------- | |
| 606 var_N2_e = e2secs[ci]; | |
| 167 | 607 var_He_e = (e2secs+16)[ci]; |
| 165 | 608 |
| 609 // Check reading consistency: | |
| 610 if( (var_N2_e < 0.0000363) | |
| 611 || (var_N2_e > 0.00577) | |
| 612 || (var_He_e < 0.0000961) | |
| 613 || (var_He_e > 0.150) | |
| 614 ) | |
| 615 int_O_DBG_pre_bitfield |= DBG_ZH16ERR; | |
| 616 | |
| 617 break; | |
| 618 | |
| 619 case 1: //---- 1 min ----------------------------------------------------- | |
| 620 var_N2_e = e1min[ci]; | |
| 167 | 621 var_He_e = (e1min+16)[ci]; |
| 165 | 622 |
| 623 // Check reading consistency: | |
| 624 if( (var_N2_e < 1.09E-3) | |
| 625 || (var_N2_e > 0.1592) | |
| 626 || (var_He_e < 0.00288) | |
| 627 || (var_He_e > 0.3682) | |
| 628 ) | |
| 629 int_O_DBG_pre_bitfield |= DBG_ZH16ERR; | |
| 630 | |
| 631 break; | |
| 632 | |
| 633 case 2: //---- 10 min ---------------------------------------------------- | |
| 634 var_N2_e = e10min[ci]; | |
| 167 | 635 var_He_e = (e10min+16)[ci]; |
| 165 | 636 |
| 637 // Check reading consistency: | |
| 638 if( (var_N2_e < 0.01085) | |
| 639 || (var_N2_e > 0.82323) | |
| 640 || (var_He_e < 0.02846) | |
| 641 || (var_He_e > 0.98986) | |
| 642 ) | |
| 643 int_O_DBG_pre_bitfield |= DBG_ZH16ERR; | |
| 644 | |
| 645 break; | |
| 197 | 646 |
| 647 default: | |
| 648 assert(0); // Never go there... | |
| 165 | 649 } |
| 650 } | |
| 651 | |
| 652 ////////////////////////////////////////////////////////////////////////////// | |
| 167 | 653 // calc_next_decodepth_GF |
| 165 | 654 // |
| 116 | 655 // new in v.102 |
| 165 | 656 // |
| 116 | 657 // INPUT, changing during dive: |
| 192 | 658 // low_depth |
| 167 | 659 // |
| 116 | 660 // INPUT, fixed during dive: |
| 167 | 661 // pres_surface |
| 662 // GF_delta | |
| 663 // GF_high | |
| 664 // GF_low | |
| 171 | 665 // char_I_depth_last_deco |
| 167 | 666 // float_deco_distance |
| 667 // | |
| 241 | 668 // RETURN TRUE iff a stop is needed. |
| 669 // | |
| 116 | 670 // OUTPUT |
| 171 | 671 // locked_GF_step |
| 167 | 672 // temp_depth_limt |
| 192 | 673 // low_depth |
| 167 | 674 // |
| 241 | 675 static unsigned char calc_nextdecodepth(void) |
| 167 | 676 { |
| 241 | 677 //--- Max ascent speed --------------------------------------------------- |
| 678 // Recompute leading gas limit, at current depth: | |
| 679 overlay float depth = (temp_deco - pres_surface) / 0.09985; | |
| 680 | |
| 681 // At most, ascent 1 minute, at 10m/min == 10.0 m. | |
| 682 overlay float min_depth = depth - 10.0; | |
| 683 | |
| 684 // Do we need to stop at current depth ? | |
| 685 overlay unsigned char need_stop = 0; | |
| 686 | |
| 687 assert( depth >= -0.2 ); // Allow for 200mbar of weather change. | |
| 688 assert( low_depth < 255 ); | |
| 689 | |
| 212 | 690 //---- ZH-L16 + GRADIENT FACTOR model ------------------------------------ |
| 116 | 691 if (char_I_deco_model == 1) |
| 692 { | |
| 241 | 693 if( depth >= low_depth ) |
| 192 | 694 sim_limit( GF_low ); |
| 695 else | |
| 696 sim_limit( GF_high - depth * locked_GF_step ); | |
| 697 | |
| 698 // Stops are needed ? | |
| 699 if( sim_lead_tissue_limit > pres_surface ) | |
| 700 { | |
| 241 | 701 // Deepest stop, in meter (rounded up with a margin of 0.5m) |
| 264 | 702 overlay unsigned char first_stop = 3 * (short)(1.1667 + (sim_lead_tissue_limit - pres_surface) / 0.29955); |
| 192 | 703 assert( first_stop < 128 ); |
| 171 | 704 |
| 264 | 705 #if defined(__DEBUG) || defined(CROSS_COMPILE) |
| 261 | 706 { |
| 707 // Extra testing code to make sure the first_stop formula | |
| 708 // and rounding provides correct depth: | |
| 709 overlay float pres_stop = first_stop * 0.09985 // Meters to bar | |
| 710 + pres_surface; | |
| 711 | |
| 712 // Keep GF_low until a first stop depth is found: | |
| 713 if( first_stop >= low_depth ) | |
| 714 sim_limit( GF_low ); | |
| 715 else | |
| 716 // current GF is GF_high - alpha (GF_high - GF_low) | |
| 717 // With alpha = currentDepth / maxDepth, hence in [0..1] | |
| 718 sim_limit( GF_high - first_stop * locked_GF_step ); | |
| 719 | |
| 720 // upper limit (lowest pressure tolerated): | |
| 721 assert( sim_lead_tissue_limit < pres_stop ); | |
| 722 } | |
| 723 #endif | |
| 724 | |
| 212 | 725 // Apply correction for the shallowest stop. |
| 192 | 726 if( first_stop == 3 ) // new in v104 |
| 727 first_stop = char_I_depth_last_deco; // Use last 3m..6m instead. | |
| 171 | 728 |
| 261 | 729 // Because gradient factor at fist_stop might be less than at |
| 730 // current depth, we might ascent a bit more. | |
| 731 // Hence, check all stops until one is indeed higher than tolerated presure: | |
| 732 while(first_stop > 0) | |
| 192 | 733 { |
| 734 overlay unsigned char next_stop; // Next index (0..30) | |
| 735 overlay float pres_stop; // Next depth (0m..90m) | |
| 171 | 736 |
| 241 | 737 // Check max speed, or reaching surface. |
| 738 if( first_stop <= min_depth ) | |
| 739 break; | |
| 740 | |
| 741 // So, there is indeed a stop needed: | |
| 742 need_stop = 1; | |
| 743 | |
| 192 | 744 if( first_stop <= char_I_depth_last_deco ) // new in v104 |
| 745 next_stop = 0; | |
| 216 | 746 else if( first_stop == 6 ) |
| 747 next_stop = char_I_depth_last_deco; | |
| 192 | 748 else |
| 749 next_stop = first_stop - 3; // Index of next (upper) stop. | |
| 167 | 750 |
| 241 | 751 pres_stop = next_stop * 0.09985 // Meters to bar |
| 192 | 752 + pres_surface; |
| 753 | |
| 212 | 754 // Keep GF_low until a first stop depth is found: |
| 755 if( next_stop >= low_depth ) | |
| 756 sim_limit( GF_low ); | |
| 757 else | |
| 758 // current GF is GF_high - alpha (GF_high - GF_low) | |
| 759 // With alpha = currentDepth / maxDepth, hence in [0..1] | |
| 760 sim_limit( GF_high - next_stop * locked_GF_step ); | |
| 171 | 761 |
| 192 | 762 // upper limit (lowest pressure tolerated): |
| 763 if( sim_lead_tissue_limit >= pres_stop ) // check if ascent to next deco stop is ok | |
| 764 break; | |
| 765 | |
| 766 // Else, validate that stop and loop... | |
| 767 first_stop = next_stop; | |
| 768 } | |
| 171 | 769 |
| 212 | 770 // Is it a new deepest first stop ? If yes this is the reference for |
| 771 // the varying gradient factor. So reset that: | |
| 241 | 772 if( first_stop > min_depth && first_stop > low_depth ) |
| 212 | 773 { |
| 774 // Store the deepest stop depth, as reference for GF_low. | |
| 775 low_depth = first_stop; | |
| 776 locked_GF_step = GF_delta / low_depth; | |
| 777 } | |
| 778 | |
| 779 // next stop is the last validated depth found, aka first_stop | |
| 192 | 780 temp_depth_limit = first_stop; // Stop depth, in meter. |
| 781 } | |
| 171 | 782 else |
| 192 | 783 temp_depth_limit = 0; // stop depth, in meter. |
| 116 | 784 } |
| 167 | 785 else //---- ZH-L16 model ------------------------------------------------- |
| 116 | 786 { |
| 192 | 787 overlay float pres_gradient; |
| 788 | |
| 789 // Original model | |
| 116 | 790 // optimized in v.101 |
| 171 | 791 // char_I_depth_last_deco included in v.101 |
| 116 | 792 |
| 192 | 793 // Compute sim_lead_tissue_limit too, but just once. |
| 794 sim_limit(1.0); | |
| 795 | |
| 796 pres_gradient = sim_lead_tissue_limit - pres_surface; | |
| 167 | 797 if (pres_gradient >= 0) |
| 116 | 798 { |
| 241 | 799 pres_gradient /= 0.29955; // Bar --> stop number; |
| 203 | 800 temp_depth_limit = 3 * (short) (pres_gradient + 0.99); // --> meter : depth for deco |
| 241 | 801 need_stop = 1; // Hit. |
| 802 | |
| 803 // Implement last stop at 4m/5m/6m... | |
| 804 if( temp_depth_limit == 3 ) | |
| 805 temp_depth_limit = char_I_depth_last_deco; | |
| 171 | 806 } |
| 116 | 807 else |
| 241 | 808 temp_depth_limit = 0; |
| 171 | 809 } |
| 212 | 810 |
| 217 | 811 //---- Check gas change -------------------------------------------------- |
| 241 | 812 need_stop |= gas_switch_deepest(); // Update temp_depth_limit if there is a change, |
| 813 | |
| 814 return need_stop; | |
| 167 | 815 } |
| 116 | 816 |
| 167 | 817 ////////////////////////////////////////////////////////////////////////////// |
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818 // copy_deco_table |
| 167 | 819 // |
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820 // Buffer the stops, once computed, so we can continue to display them |
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821 // while computing the next set. |
| 167 | 822 // |
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823 static void copy_deco_table(void) |
| 116 | 824 { |
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825 // Copy depth of the first (deepest) stop, because when reversing |
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826 // order, it will be hard to find... |
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827 char_O_first_deco_depth = internal_deco_depth[0]; |
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828 char_O_first_deco_time = internal_deco_time [0]; |
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829 |
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830 if( read_custom_function(54) & 1 ) //---- Should we reverse table ? ------ |
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831 { |
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832 overlay unsigned char x, y; |
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833 |
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834 //---- First: search the first non-null depth |
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835 for(x=31; x != 0; --x) |
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836 if( internal_deco_depth[x] != 0 ) break; |
| 116 | 837 |
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838 //---- Second: copy to output table (in reverse order) |
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839 for(y=0; y<32; y++, --x) |
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840 { |
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841 char_O_deco_depth[y] = internal_deco_depth[x]; |
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842 char_O_deco_time [y] = internal_deco_time [x]; |
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843 |
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844 // Stop only once the last transfer is done. |
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845 if( x == 0 ) break; |
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846 } |
| 116 | 847 |
|
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848 //---- Third: fill table end with null |
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849 for(y++; y<32; y++) |
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850 { |
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851 char_O_deco_time [y] = 0; |
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852 char_O_deco_depth[y] = 0; |
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853 } |
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854 } |
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855 else //---- Straight copy ------------------------------------------------ |
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856 { |
| 167 | 857 overlay unsigned char x; |
| 858 | |
|
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859 for(x=0; x<32; x++) |
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860 { |
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861 char_O_deco_depth[x] = internal_deco_depth[x]; |
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862 char_O_deco_time [x] = internal_deco_time [x]; |
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863 } |
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864 } |
| 167 | 865 } |
| 116 | 866 |
| 167 | 867 ////////////////////////////////////////////////////////////////////////////// |
| 116 | 868 // temp_tissue_safety // |
| 167 | 869 // |
| 116 | 870 // outsourced in v.102 |
| 167 | 871 // |
| 872 // Apply safety factors for brand ZH-L16 model. | |
| 873 // | |
| 874 static void temp_tissue_safety(void) | |
| 116 | 875 { |
| 197 | 876 assert( 0.0 < float_desaturation_multiplier && float_desaturation_multiplier <= 1.0 ); |
| 877 assert( 1.0 <= float_saturation_multiplier && float_saturation_multiplier <= 2.0 ); | |
| 878 | |
| 167 | 879 if( char_I_deco_model == 0 ) |
| 116 | 880 { |
| 881 if (temp_tissue < 0.0) | |
| 126 | 882 temp_tissue *= float_desaturation_multiplier; |
| 116 | 883 else |
| 126 | 884 temp_tissue *= float_saturation_multiplier; |
| 116 | 885 } |
| 167 | 886 } |
| 116 | 887 |
| 167 | 888 ////////////////////////////////////////////////////////////////////////////// |
| 889 ////////////////////////////////////////////////////////////////////////////// | |
| 116 | 890 // ** THE JUMP-IN CODE ** |
| 891 // ** for the asm code ** | |
| 167 | 892 ////////////////////////////////////////////////////////////////////////////// |
| 893 ////////////////////////////////////////////////////////////////////////////// | |
|
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894 |
| 167 | 895 ////////////////////////////////////////////////////////////////////////////// |
|
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896 // Called every 2 seconds during diving. |
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897 // update tissues every time. |
| 184 | 898 // |
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899 // Every 6 seconds (or slower when TTS > 16): |
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900 // - update deco table (char_O_deco_time/depth) with new values. |
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901 // - update ascent time, |
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902 // - set status to zero (so we can check there is new results). |
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903 // |
| 116 | 904 void deco_calc_hauptroutine(void) |
| 905 { | |
|
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906 RESET_C_STACK |
| 116 | 907 calc_hauptroutine(); |
| 908 int_O_desaturation_time = 65535; | |
| 909 } | |
| 910 | |
| 167 | 911 ////////////////////////////////////////////////////////////////////////////// |
| 184 | 912 // Reset decompression model: |
| 913 // + Set all tissues to equilibrium with Air at ambient pressure. | |
| 914 // + Reset last stop to 0m | |
| 915 // + Reset all model output. | |
| 116 | 916 void deco_clear_tissue(void) |
| 917 { | |
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918 RESET_C_STACK |
| 116 | 919 clear_tissue(); |
| 920 } | |
| 921 | |
| 167 | 922 ////////////////////////////////////////////////////////////////////////////// |
| 923 | |
| 116 | 924 void deco_calc_wo_deco_step_1_min(void) |
| 925 { | |
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926 RESET_C_STACK |
| 116 | 927 calc_wo_deco_step_1_min(); |
| 928 deco_calc_desaturation_time(); | |
| 929 } | |
| 930 | |
| 167 | 931 ////////////////////////////////////////////////////////////////////////////// |
| 932 | |
| 116 | 933 void deco_debug(void) |
| 934 { | |
|
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935 RESET_C_STACK |
| 116 | 936 } |
| 937 | |
| 241 | 938 |
| 939 ////////////////////////////////////////////////////////////////////////////// | |
| 940 // Find current gas in the list (if any). | |
| 941 // | |
| 942 // Input: char_I_deco_N2_ratio[] and He, to detect breathed gas. | |
| 943 // | |
| 944 // Output: sim_gas_depth_used | |
| 945 // | |
| 946 static void gas_switch_find_current(void) | |
| 947 { | |
|
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948 overlay unsigned char j; |
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949 overlay unsigned char N2 = (unsigned char)(N2_ratio * 100 + 0.5); |
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950 overlay unsigned char He = (unsigned char)(He_ratio * 100 + 0.5); |
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951 |
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952 for(j=0; j<5; ++j) |
| 241 | 953 { |
|
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954 // Make sure to detect if we are already breathing some gas in |
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955 // the current list (happends when first gas do have a depth). |
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956 if( N2 == char_I_deco_N2_ratio[j] |
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957 && He == char_I_deco_He_ratio[j] |
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958 ) |
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959 { |
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960 temp_depth_limit = sim_gas_last_depth = char_I_deco_gas_change[j]; |
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961 sim_gas_last_used = j+1; |
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962 break; |
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963 } |
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964 } |
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965 |
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966 // If there is no gas-switch-delay running ? |
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967 if( sim_gas_delay <= sim_dive_mins) |
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968 { |
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969 // Compute current depth: |
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970 overlay unsigned char depth = (unsigned char)((pres_respiration - pres_surface) / 0.09985); |
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971 assert( depth < 130 ); |
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972 |
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973 // And if I'm above the last decostop (with the 3m margin) ? |
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974 if( (sim_gas_last_depth-3) > depth ) |
| 241 | 975 { |
|
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976 for(j=0; j<5; ++j) |
| 241 | 977 { |
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978 // And If I am in the range of a valide stop ? |
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979 // (again, with the same 3m margin) |
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980 if( char_I_deco_gas_change[j] |
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981 && depth <= char_I_deco_gas_change[j] |
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982 && depth >= (char_I_deco_gas_change[j] - 3) |
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983 ) |
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984 { |
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985 // Then start gas-switch timer there, |
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986 sim_gas_delay = sim_dive_mins |
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987 + read_custom_function(55); |
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988 |
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989 // And make sure decostop will be recorded at the right depth. |
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990 temp_depth_limit = char_I_deco_gas_change[j]; |
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991 break; |
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992 } |
| 241 | 993 } |
| 994 } | |
|
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995 else |
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996 // Make clear there is no deay anymore. |
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997 sim_gas_delay = 0; |
| 241 | 998 } |
| 999 } | |
| 1000 | |
| 167 | 1001 ////////////////////////////////////////////////////////////////////////////// |
| 217 | 1002 // Find deepest available gas. |
| 201 | 1003 // |
| 241 | 1004 // Input: temp_depth_limit, |
| 1005 // deco_gas_change[] | |
| 1006 // sim_gas_delay, sim_gas_depth_used, sim_dive_mins. | |
| 212 | 1007 // |
| 241 | 1008 // RETURNS TRUE if a stop is needed for gas switch. |
| 1009 // | |
| 1010 // Output: temp_depth_limit, sim_gas_delay, sim_gas_depth_used IFF the is a switch. | |
| 212 | 1011 // |
| 241 | 1012 // NOTE: might be called from bottom (when sim_gas_delay and sim_gas_depth_used |
| 1013 // are null), or during the ascent to make sure we are not passing a | |
| 1014 // stop (in which case both can be already set). | |
| 1015 // | |
| 1016 static unsigned char gas_switch_deepest(void) | |
| 201 | 1017 { |
| 241 | 1018 overlay unsigned char switch_deco = 0, switch_last = 0; |
| 201 | 1019 |
| 1020 if (char_I_const_ppO2 == 0) | |
| 1021 { | |
| 225 | 1022 overlay unsigned char j; |
| 1023 | |
| 241 | 1024 // Loop over all enabled gas, to find the deepest one, |
| 1025 // above las gas, but below temp_depth_limit. | |
| 1026 for(j=0; j<5; ++j) | |
| 225 | 1027 { |
| 241 | 1028 // Gas not (yet) allowed ? Skip ! |
| 1029 if( temp_depth_limit > deco_gas_change[j] ) | |
| 1030 continue; | |
| 1031 | |
| 1032 // Gas deeper than the current/previous one ? Skip ! | |
| 1033 if( sim_gas_last_depth && deco_gas_change[j] >= sim_gas_last_depth ) | |
| 1034 continue; | |
| 1035 | |
| 1036 // First, or deeper ? | |
|
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1037 if( switch_deco < deco_gas_change[j] ) |
| 241 | 1038 { |
| 1039 switch_deco = deco_gas_change[j]; | |
| 1040 switch_last = j+1; | |
| 1041 } | |
| 225 | 1042 } |
| 201 | 1043 } |
| 1044 | |
| 203 | 1045 // If there is a better gas available |
| 241 | 1046 if( switch_deco ) |
| 201 | 1047 { |
| 241 | 1048 assert( !sim_gas_last_depth || sim_gas_last_depth > switch_deco ); |
| 201 | 1049 |
| 241 | 1050 // Should restart gas-switch delay only when gas do changes... |
| 1051 assert( sim_gas_delay <= sim_dive_mins ); | |
| 217 | 1052 |
| 241 | 1053 sim_gas_last_depth = switch_deco; |
| 1054 sim_gas_last_used = switch_last; | |
| 1055 sim_gas_delay = read_custom_function(55); | |
| 217 | 1056 |
| 241 | 1057 // Apply depth correction ONLY if CF#55 is not null: |
| 1058 if( sim_gas_delay > 0 ) | |
| 225 | 1059 { |
| 241 | 1060 sim_gas_delay += sim_dive_mins; |
| 1061 temp_depth_limit = switch_deco; | |
| 1062 return 1; | |
| 225 | 1063 } |
| 241 | 1064 |
| 1065 return 0; | |
| 217 | 1066 } |
| 1067 | |
| 241 | 1068 sim_gas_delay = 0; |
| 1069 return 0; | |
| 217 | 1070 } |
| 1071 | |
| 1072 ////////////////////////////////////////////////////////////////////////////// | |
| 1073 // Calculate gas switches | |
| 1074 // | |
| 1075 // | |
| 1076 // Input: N2_ratio, He_ratio. | |
| 1077 // sim_gas_last_used | |
| 1078 // | |
| 1079 // Output: calc_N2_ratio, calc_He_ratio | |
| 1080 // | |
| 241 | 1081 static void gas_switch_set(void) |
| 217 | 1082 { |
| 224 | 1083 assert( 0 <= sim_gas_last_used && sim_gas_last_used <= 5 ); |
| 217 | 1084 |
| 224 | 1085 if( sim_gas_last_used == 0 ) |
| 1086 { | |
| 1087 calc_N2_ratio = N2_ratio; | |
| 1088 calc_He_ratio = He_ratio; | |
| 1089 } | |
| 1090 else | |
| 1091 { | |
| 1092 calc_N2_ratio = char_I_deco_N2_ratio[sim_gas_last_used-1] * 0.01; | |
| 1093 calc_He_ratio = char_I_deco_He_ratio[sim_gas_last_used-1] * 0.01; | |
| 217 | 1094 } |
| 201 | 1095 |
| 1096 assert( 0.0 <= calc_N2_ratio && calc_N2_ratio <= 0.95 ); | |
| 1097 assert( 0.0 <= calc_He_ratio && calc_He_ratio <= 0.95 ); | |
| 1098 assert( (calc_N2_ratio + calc_He_ratio) <= 1.00 ); | |
| 1099 } | |
| 1100 | |
| 1101 ////////////////////////////////////////////////////////////////////////////// | |
| 1102 // | |
| 212 | 1103 // Input: calc_N2_ratio, calc_He_ratio : simulated gas mix. |
| 1104 // temp_deco : simulated respiration pressure + security offset (deco_distance) | |
| 1105 // Water-vapor pressure inside lumbs (ppWVapour). | |
| 1106 // | |
| 236 | 1107 // Output: ppN2, ppHe. |
| 212 | 1108 // |
| 1109 static void sim_alveolar_presures(void) | |
| 201 | 1110 { |
| 212 | 1111 overlay float deco_diluent = temp_deco; // new in v.101 |
| 1112 | |
| 1113 //---- CCR mode : deco gas switch ? -------------------------------------- | |
| 201 | 1114 if (char_I_const_ppO2 != 0) |
| 1115 { | |
| 212 | 1116 // In CCR mode, calc_XX_ratio == XX_ratio. |
| 1117 if( temp_deco > deco_ppO2_change ) | |
| 1118 deco_diluent = ((temp_deco - const_ppO2)/(calc_N2_ratio + calc_He_ratio)); | |
| 201 | 1119 else |
| 212 | 1120 deco_diluent = ((temp_deco - deco_ppO2)/(calc_N2_ratio + calc_He_ratio)); |
| 1121 | |
| 1122 if (deco_diluent > temp_deco) | |
| 1123 deco_diluent = temp_deco; | |
| 201 | 1124 } |
| 1125 | |
| 212 | 1126 // Take deco offset into account, but not at surface. |
| 1127 if( deco_diluent > pres_surface ) | |
| 1128 deco_diluent += float_deco_distance; | |
| 1129 | |
| 1130 if( deco_diluent > ppWVapour ) | |
| 201 | 1131 { |
| 236 | 1132 ppN2 = calc_N2_ratio * (deco_diluent - ppWVapour); |
| 201 | 1133 ppHe = calc_He_ratio * (deco_diluent - ppWVapour); |
| 1134 } | |
| 1135 else | |
| 1136 { | |
| 236 | 1137 ppN2 = 0.0; |
| 201 | 1138 ppHe = 0.0; |
| 1139 } | |
| 236 | 1140 assert( 0.0 <= ppN2 && ppN2 < 14.0 ); |
| 201 | 1141 assert( 0.0 <= ppHe && ppHe < 14.0 ); |
| 1142 } | |
| 1143 | |
| 1144 ////////////////////////////////////////////////////////////////////////////// | |
| 167 | 1145 // clear_tissue |
| 1146 // | |
| 165 | 1147 // optimized in v.101 (var_N2_a) |
| 167 | 1148 // |
| 1149 // preload tissues with standard pressure for the given ambient pressure. | |
| 1150 // Note: fixed N2_ratio for standard air. | |
| 201 | 1151 // |
| 167 | 1152 static void clear_tissue(void) |
| 116 | 1153 { |
| 1154 flag_in_divemode = 0; | |
| 1155 int_O_DBS_bitfield = 0; | |
| 1156 int_O_DBS2_bitfield = 0; | |
| 1157 int_O_DBG_pre_bitfield = 0; | |
| 1158 int_O_DBG_post_bitfield = 0; | |
| 1159 char_O_NDL_at_20mtr = 255; | |
| 1160 | |
| 167 | 1161 // Kludge: the 0.0002 of 0.7902 are missing with standard air. |
| 1162 N2_ratio = 0.7902; | |
| 212 | 1163 pres_respiration = int_I_pres_respiration * 0.001; |
| 164 | 1164 |
| 167 | 1165 for(ci=0; ci<16; ci++) |
| 126 | 1166 { |
| 197 | 1167 // cycle through the 16 Bühlmann tissues |
| 200 | 1168 overlay float p = N2_ratio * (pres_respiration - ppWVapour); |
| 164 | 1169 pres_tissue[ci] = p; |
| 197 | 1170 |
| 1171 // cycle through the 16 Bühlmann tissues for Helium | |
| 167 | 1172 (pres_tissue+16)[ci] = 0.0; |
| 126 | 1173 } // for 0 to 16 |
| 116 | 1174 |
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1175 clear_deco_table(); |
| 126 | 1176 char_O_deco_status = 0; |
| 1177 char_O_nullzeit = 0; | |
| 168 | 1178 int_O_ascenttime = 0; |
| 126 | 1179 char_O_gradient_factor = 0; |
| 1180 char_O_relative_gradient_GF = 0; | |
| 197 | 1181 char_I_depth_last_deco = 0; // for compatibility with v.101pre_no_last_deco |
| 258 | 1182 |
| 1183 calc_lead_tissue_limit = 0.0; | |
| 1184 char_O_gtissue_no = 0; | |
| 167 | 1185 } |
| 116 | 1186 |
| 167 | 1187 ////////////////////////////////////////////////////////////////////////////// |
| 1188 // calc_hauptroutine | |
| 1189 // | |
| 1190 // this is the major code in dive mode calculates: | |
| 116 | 1191 // the tissues, |
| 167 | 1192 // the bottom time, |
| 1193 // and simulates the ascend with all deco stops. | |
| 171 | 1194 // |
| 1195 // The deco_state sequence is : | |
| 1196 // 3 (at surface) | |
| 1197 // +---> 0 : calc nullzeit | |
| 1198 // | 2 : simulate ascent to first stop (at 10m/min, less that 16x 1min simu) | |
| 1199 // | +-> 1 : simulate up to 16min of stops. | |
| 1200 // | +------< not finished | |
| 1201 // +--------< finish | |
| 1202 // | |
| 167 | 1203 static void calc_hauptroutine(void) |
| 116 | 1204 { |
| 241 | 1205 static unsigned char backup_gas_used = 0; |
| 1206 static unsigned char backup_gas_depth = 0; | |
| 217 | 1207 static unsigned char backup_gas_delay = 0; |
| 186 | 1208 |
| 116 | 1209 calc_hauptroutine_data_input(); |
| 1210 | |
| 1211 if(!flag_in_divemode) | |
| 1212 { | |
| 1213 flag_in_divemode = 1; | |
| 1214 create_dbs_set_dbg_and_ndl20mtr(); | |
| 1215 } | |
| 1216 else | |
| 1217 check_pre_dbg(); | |
| 1218 | |
| 1219 calc_hauptroutine_update_tissues(); | |
| 1220 calc_gradient_factor(); | |
| 1221 | |
| 167 | 1222 // toggle between calculation for nullzeit (bottom time), |
| 1223 // deco stops | |
| 1224 // and more deco stops (continue) | |
| 1225 switch( char_O_deco_status ) | |
| 116 | 1226 { |
| 186 | 1227 case 3: //---- At surface: start a new dive ------------------------------ |
| 1228 clear_deco_table(); | |
| 1229 copy_deco_table(); | |
| 200 | 1230 int_O_ascenttime = 0; // Reset DTR. |
| 1231 char_O_nullzeit = 0; // Reset bottom time. | |
| 1232 char_O_deco_status = 0; // Calc bottom-time/nullzeit next iteration. | |
| 201 | 1233 |
| 217 | 1234 // Values that should be reset just once for the full real dive. |
| 1235 // This is used to record the lowest stop for the whole dive, | |
| 1236 // Including ACCROSS all simulated ascent. | |
| 1237 low_depth = 0; | |
| 1238 | |
| 1239 // Reset gas switch history. | |
| 241 | 1240 backup_gas_used = sim_gas_last_used = 0; |
| 1241 backup_gas_depth = sim_gas_last_depth = 0; | |
| 217 | 1242 backup_gas_delay = sim_gas_delay = 0; |
| 203 | 1243 sim_dive_mins = 0; |
| 1244 break; | |
| 186 | 1245 |
| 167 | 1246 case 0: //---- bottom time ----------------------------------------------- |
| 1247 calc_nullzeit(); | |
| 1248 check_ndl(); | |
| 186 | 1249 char_O_deco_status = 2; // calc ascent next time. |
| 1250 break; | |
| 1251 | |
| 1252 case 2: //---- Simulate ascent to first stop ----------------------------- | |
| 203 | 1253 // Check proposed gas at begin of ascent simulation |
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1254 sim_dive_mins = int_I_divemins; // Init current time. |
| 241 | 1255 |
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1256 gas_switch_find_current(); // Lookup for current gas & time. |
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1257 gas_switch_set(); // setup calc_ratio's |
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1258 |
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1259 backup_gas_used = sim_gas_last_used; // And save for later simu steps. |
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1260 backup_gas_depth = sim_gas_last_depth; // And save for later simu steps. |
| 203 | 1261 backup_gas_delay = sim_gas_delay; |
| 186 | 1262 |
| 1263 sim_ascent_to_first_stop(); | |
| 201 | 1264 |
| 1265 char_O_deco_status = 1; // Calc stops next time (deco or gas switch). | |
| 167 | 1266 break; |
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1267 |
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1268 case 1: //---- Simulate stops -------------------------------------------- |
| 167 | 1269 calc_hauptroutine_calc_deco(); |
| 186 | 1270 |
| 1271 // If simulation is finished, restore the GF low reference, so that | |
| 1272 // next ascent simulation is done from the current depth: | |
| 217 | 1273 if( char_O_deco_status == 0 ) |
| 186 | 1274 { |
| 241 | 1275 sim_gas_last_used = backup_gas_used; |
| 1276 sim_gas_last_depth = backup_gas_depth; | |
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1277 sim_gas_delay = backup_gas_delay; |
| 186 | 1278 } |
| 167 | 1279 break; |
| 116 | 1280 } |
| 167 | 1281 |
| 116 | 1282 check_post_dbg(); |
| 1283 } | |
| 1284 | |
| 167 | 1285 ////////////////////////////////////////////////////////////////////////////// |
| 1286 // calc_hauptroutine_data_input | |
| 1287 // | |
| 1288 // Reset all C-code dive parameters from their ASM-code values. | |
| 1289 // Detect gas change condition. | |
| 1290 // | |
| 116 | 1291 void calc_hauptroutine_data_input(void) |
| 1292 { | |
| 203 | 1293 overlay short int_temp; |
| 126 | 1294 |
| 197 | 1295 pres_respiration = int_I_pres_respiration * 0.001; |
| 1296 pres_surface = int_I_pres_surface * 0.001; | |
| 1297 N2_ratio = char_I_N2_ratio * 0.01; | |
| 1298 He_ratio = char_I_He_ratio * 0.01; | |
| 1299 float_deco_distance = char_I_deco_distance * 0.01; // Get offset is in mbar. | |
| 116 | 1300 |
| 126 | 1301 // ____________________________________________________ |
| 1302 // | |
| 1303 // _____________ G A S _ C H A N G E S ________________ | |
| 1304 // ____________________________________________________ | |
| 1305 | |
| 212 | 1306 // Keep a margin of 150mbar = 1.50m |
| 1307 int_temp = (int_I_pres_respiration - int_I_pres_surface) | |
| 1308 + MBAR_REACH_GASCHANGE_AUTO_CHANGE_OFF; | |
| 126 | 1309 |
| 225 | 1310 deco_gas_change[0] = 0; |
| 1311 deco_gas_change[1] = 0; | |
| 1312 deco_gas_change[2] = 0; | |
| 1313 deco_gas_change[3] = 0; | |
| 1314 deco_gas_change[4] = 0; | |
| 116 | 1315 |
| 203 | 1316 // Gas are selectable if we did not pass the change depth by more than 1.50m: |
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1317 if(char_I_deco_gas_change[0]) |
| 126 | 1318 { |
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1319 if( int_temp > 100 *(short)char_I_deco_gas_change[0] ) |
| 225 | 1320 deco_gas_change[0] = char_I_deco_gas_change[0]; |
| 126 | 1321 } |
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1322 if(char_I_deco_gas_change[1]) |
| 126 | 1323 { |
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1324 if( int_temp > 100 *(short)char_I_deco_gas_change[1] ) |
| 225 | 1325 deco_gas_change[1] = char_I_deco_gas_change[1]; |
| 126 | 1326 } |
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1327 if(char_I_deco_gas_change[2]) |
| 126 | 1328 { |
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1329 if( int_temp > 100 *(short)char_I_deco_gas_change[2] ) |
| 225 | 1330 deco_gas_change[2] = char_I_deco_gas_change[2]; |
| 126 | 1331 } |
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1332 if(char_I_deco_gas_change[3]) |
| 126 | 1333 { |
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1334 if( int_temp > 100 *(short)char_I_deco_gas_change[3] ) |
| 225 | 1335 deco_gas_change[3] = char_I_deco_gas_change[3]; |
| 126 | 1336 } |
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1337 if(char_I_deco_gas_change[4]) |
| 126 | 1338 { |
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1339 if( int_temp > 100 *(short)char_I_deco_gas_change[4] ) |
| 225 | 1340 deco_gas_change[4] = char_I_deco_gas_change[4]; |
| 126 | 1341 } |
| 116 | 1342 |
| 197 | 1343 const_ppO2 = char_I_const_ppO2 * 0.01; |
| 1344 deco_ppO2_change = char_I_deco_ppO2_change / 99.95 | |
| 1345 + pres_surface | |
| 1346 + float_deco_distance; | |
| 1347 deco_ppO2 = char_I_deco_ppO2 * 0.01; | |
| 1348 float_desaturation_multiplier = char_I_desaturation_multiplier * 0.01; | |
| 1349 float_saturation_multiplier = char_I_saturation_multiplier * 0.01; | |
| 1350 GF_low = char_I_GF_Low_percentage * 0.01; | |
| 1351 GF_high = char_I_GF_High_percentage * 0.01; | |
| 126 | 1352 GF_delta = GF_high - GF_low; |
| 116 | 1353 } |
| 1354 | |
| 167 | 1355 ////////////////////////////////////////////////////////////////////////////// |
| 171 | 1356 // |
| 1357 // | |
| 116 | 1358 void calc_hauptroutine_update_tissues(void) |
| 1359 { | |
| 197 | 1360 assert( 0.00 <= N2_ratio && N2_ratio <= 1.00 ); |
| 1361 assert( 0.00 <= He_ratio && He_ratio <= 1.00 ); | |
| 1362 assert( (N2_ratio + He_ratio) <= 0.95 ); | |
| 237 | 1363 assert( 0.800 < pres_respiration && pres_respiration < 14.0 ); |
| 197 | 1364 |
| 1365 if (char_I_const_ppO2 == 0) // new in v.101 | |
| 167 | 1366 pres_diluent = pres_respiration; // new in v.101 |
| 186 | 1367 else |
| 1368 { | |
| 167 | 1369 pres_diluent = ((pres_respiration - const_ppO2)/(N2_ratio + He_ratio)); // new in v.101 |
| 186 | 1370 if (pres_diluent > pres_respiration) // new in v.101 |
| 1371 pres_diluent = pres_respiration; // new in v.101 | |
| 1372 } | |
| 200 | 1373 if (pres_diluent > ppWVapour) // new in v.101 |
| 116 | 1374 { |
| 236 | 1375 ppN2 = N2_ratio * (pres_diluent - ppWVapour); // changed in v.101 |
| 200 | 1376 ppHe = He_ratio * (pres_diluent - ppWVapour); // changed in v.101 |
| 116 | 1377 char_O_diluent = (char)(pres_diluent/pres_respiration*100.0); |
| 1378 } | |
| 167 | 1379 else // new in v.101 |
| 116 | 1380 { |
| 236 | 1381 ppN2 = 0.0; // new in v.101 |
| 200 | 1382 ppHe = 0.0; // new in v.101 |
| 116 | 1383 char_O_diluent = 0; |
| 1384 } | |
| 1385 | |
| 1386 if(!char_I_step_is_1min) | |
| 192 | 1387 calc_tissue(0); |
| 116 | 1388 else |
| 192 | 1389 calc_tissue(1); |
| 186 | 1390 |
| 192 | 1391 // Calc limit for surface, ie. GF_high. |
| 258 | 1392 calc_limit(); |
| 186 | 1393 |
| 203 | 1394 int_O_gtissue_limit = (short)(calc_lead_tissue_limit * 1000); |
| 1395 int_O_gtissue_press = (short)((pres_tissue[char_O_gtissue_no] + (pres_tissue+16)[char_O_gtissue_no]) * 1000); | |
| 192 | 1396 |
| 1397 // if guiding tissue can not be exposed to surface pressure immediately | |
| 1398 if( calc_lead_tissue_limit > pres_surface && char_O_deco_status == 0) | |
| 116 | 1399 { |
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1400 char_O_nullzeit = 0; // deco necessary |
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1401 char_O_deco_status = 2; // calculate ascent on next iteration. |
| 116 | 1402 } |
| 171 | 1403 } |
| 1404 | |
| 116 | 1405 |
| 167 | 1406 ////////////////////////////////////////////////////////////////////////////// |
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1407 // Compute stops. |
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1408 // |
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1409 // Note: because this can be very long, break on 16 iterations, and set state |
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1410 // to 0 when finished, or to 1 when needing to continue. |
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1411 // Note: because this might be very long (~ 66 ms by iteration in 1.84beta), |
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1412 // break the loop when total time > 512msec. |
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1413 // |
| 116 | 1414 void calc_hauptroutine_calc_deco(void) |
| 1415 { | |
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1416 overlay unsigned char loop; |
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1417 |
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1418 for(loop = 0; loop < 16; ++loop) |
| 116 | 1419 { |
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1420 // Limit loops to 512ms, using the RTC timer 3: |
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1421 if( tmr3() & (512*32) ) |
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1422 break; |
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1423 |
| 241 | 1424 // Do not ascent while doing a gas switch ? |
| 203 | 1425 if( sim_gas_delay <= sim_dive_mins ) |
| 1426 { | |
| 241 | 1427 if( calc_nextdecodepth() ) |
| 1428 { | |
| 1429 if( temp_depth_limit == 0 ) | |
| 1430 goto Surface; | |
| 116 | 1431 |
| 241 | 1432 //---- We hit a stop at temp_depth_limit --------------------- |
| 1433 temp_deco = temp_depth_limit * 0.09985 // Convert to relative bar, | |
| 1434 + pres_surface; // To absolute. | |
| 1435 update_deco_table(); // Adds a one minute stops. | |
| 1436 } | |
| 1437 else | |
| 1438 { | |
| 1439 //---- No stop ----------------------------------------------- | |
| 1440 temp_deco -= 0.9985; // Ascend 10m, no wait. | |
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1441 |
| 241 | 1442 //---- Finish computations once surface is reached ----------- |
| 1443 if( temp_deco <= pres_surface ) | |
| 1444 { | |
| 1445 Surface: | |
| 1446 copy_deco_table(); | |
| 1447 calc_ascenttime(); | |
| 1448 char_O_deco_status = 0; // calc nullzeit next time. | |
| 1449 return; | |
| 1450 } | |
| 1451 } | |
| 212 | 1452 |
| 1453 } | |
| 1454 else | |
| 241 | 1455 update_deco_table(); // Just pass one minute. |
| 197 | 1456 |
| 241 | 1457 //---- Then update tissue -------------------------------------------- |
| 203 | 1458 sim_dive_mins++; // Advance simulated time by 1 minute. |
| 241 | 1459 gas_switch_set(); // Apply any simulated gas change, once validated. |
| 212 | 1460 sim_alveolar_presures(); // Updates ppN2 and ppHe. |
| 192 | 1461 sim_tissue(1); // Simulate compartiments for 1 minute. |
| 116 | 1462 } |
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1463 |
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1464 // Surface not reached, need more stops... |
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1465 char_O_deco_status = 1; // calc more stops next time. |
| 116 | 1466 } |
| 1467 | |
| 167 | 1468 ////////////////////////////////////////////////////////////////////////////// |
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1469 // Simulation ascention to first deco stop. |
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1470 // |
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1471 // Note: because we ascent with a constant speed (10m/mn, ie. 1bar/mn), |
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1472 // there is no need to break on more that 16 iterations |
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1473 // (or we are already in deep shit). |
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1474 // |
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1475 void sim_ascent_to_first_stop(void) |
| 116 | 1476 { |
| 171 | 1477 update_startvalues(); |
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1478 clear_deco_table(); |
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1479 |
| 200 | 1480 temp_deco = pres_respiration; // Starts from current real depth. |
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1481 |
| 212 | 1482 // Do we have a gas switch going on ? |
| 1483 if( sim_gas_delay > sim_dive_mins ) | |
| 1484 return; | |
| 1485 | |
| 241 | 1486 //---- Loop until first stop, gas switch, or surface is reached ---------- |
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1487 for(;;) |
| 116 | 1488 { |
| 241 | 1489 // Try ascending 1 full minute. |
| 1490 temp_deco -= 0.9985; // 1 min, at 10m/min. ~ 1bar. | |
| 203 | 1491 |
| 212 | 1492 // Compute sim_lead_tissue_limit at GF_low (deepest stop). |
| 1493 sim_limit(GF_low); | |
| 1494 | |
| 1495 // Did we reach deepest remaining stop ? | |
| 241 | 1496 if( temp_deco < sim_lead_tissue_limit ) |
| 212 | 1497 { |
| 241 | 1498 temp_deco += 0.9985; // Restore last correct depth, |
| 1499 break; // End fast ascent. | |
| 212 | 1500 } |
| 1501 | |
| 203 | 1502 // Did we reach surface ? |
| 1503 if( temp_deco <= pres_surface ) | |
| 1504 { | |
| 1505 temp_deco = pres_surface; // Yes: finished ! | |
| 1506 break; | |
| 1507 } | |
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1508 |
| 241 | 1509 // Check for gas change below new depth ? |
| 1510 temp_depth_limit = (temp_deco - pres_surface) / 0.09985; | |
| 1511 | |
| 1512 if( gas_switch_deepest() ) | |
| 1513 { | |
| 1514 temp_deco = temp_depth_limit * 0.09985 + pres_surface; | |
| 212 | 1515 break; |
| 241 | 1516 } |
| 171 | 1517 |
| 203 | 1518 sim_dive_mins++; // Advance simulated time by 1 minute. |
| 241 | 1519 sim_alveolar_presures(); // temp_deco --> ppN2/ppHe |
| 203 | 1520 sim_tissue(1); // and update tissues for 1 min. |
| 1521 } | |
| 167 | 1522 } |
| 116 | 1523 |
| 167 | 1524 ////////////////////////////////////////////////////////////////////////////// |
| 1525 // calc_tissue | |
| 1526 // | |
| 116 | 1527 // optimized in v.101 |
| 167 | 1528 // |
| 184 | 1529 static void calc_tissue(PARAMETER unsigned char period) |
| 116 | 1530 { |
| 251 | 1531 assert( 0.00 <= ppN2 && ppN2 < 11.2 ); // 80% N2 at 130m |
| 1532 assert( 0.00 <= ppHe && ppHe < 12.6 ); // 90% He at 130m | |
| 236 | 1533 |
| 126 | 1534 for (ci=0;ci<16;ci++) |
| 1535 { | |
| 258 | 1536 read_buhlmann_times(period); // 2 sec or 1 min period. |
| 116 | 1537 |
| 126 | 1538 // N2 |
| 236 | 1539 temp_tissue = (ppN2 - pres_tissue[ci]) * var_N2_e; |
| 126 | 1540 temp_tissue_safety(); |
| 167 | 1541 pres_tissue[ci] += temp_tissue; |
| 165 | 1542 |
| 126 | 1543 // He |
| 200 | 1544 temp_tissue = (ppHe - (pres_tissue+16)[ci]) * var_He_e; |
| 126 | 1545 temp_tissue_safety(); |
| 167 | 1546 (pres_tissue+16)[ci] += temp_tissue; |
| 192 | 1547 } |
| 167 | 1548 } |
| 116 | 1549 |
| 167 | 1550 ////////////////////////////////////////////////////////////////////////////// |
| 192 | 1551 // calc_limit |
| 167 | 1552 // |
| 192 | 1553 // New in v.111 : separated from calc_tissue(), and depends on GF value. |
| 167 | 1554 // |
| 258 | 1555 static void calc_limit(void) |
| 167 | 1556 { |
| 192 | 1557 char_O_gtissue_no = 255; |
| 1558 calc_lead_tissue_limit = 0.0; | |
| 1559 | |
| 1560 for (ci=0;ci<16;ci++) | |
| 1561 { | |
| 1562 overlay float p = pres_tissue[ci] + (pres_tissue+16)[ci]; | |
| 1563 | |
| 258 | 1564 read_buhlmann_coefficients(); |
| 192 | 1565 var_N2_a = (var_N2_a * pres_tissue[ci] + var_He_a * (pres_tissue+16)[ci]) / p; |
| 1566 var_N2_b = (var_N2_b * pres_tissue[ci] + var_He_b * (pres_tissue+16)[ci]) / p; | |
| 116 | 1567 |
| 192 | 1568 // Apply the Eric Baker's varying gradient factor correction. |
| 1569 // Note: the correction factor depends both on GF and b, | |
| 1570 // Actual values are in the 1.5 .. 1.0 range (for a GF=30%), | |
| 1571 // so that can change who is the leading gas... | |
| 1572 // Note: Also depends of the GF. So the calcul is different for | |
| 1573 // GF_low, current GF, or GF_high... | |
| 1574 // *BUT* calc_tissue() is used to compute bottom time, | |
| 1575 // hence what would happend at surface, | |
| 1576 // hence at GF_high. | |
| 1577 if( char_I_deco_model == 1 ) | |
| 258 | 1578 p = ( p - var_N2_a * GF_high) * var_N2_b |
| 1579 / (GF_high + var_N2_b * (1.0 - GF_high)); | |
| 192 | 1580 else |
| 1581 p = (p - var_N2_a) * var_N2_b; | |
| 258 | 1582 if( p < 0.0 ) p = 0.0; |
| 192 | 1583 |
| 1584 if( p > calc_lead_tissue_limit ) | |
| 1585 { | |
| 1586 char_O_gtissue_no = ci; | |
| 1587 calc_lead_tissue_limit = p; | |
| 1588 } | |
| 1589 } | |
| 197 | 1590 |
| 1591 assert( char_O_gtissue_no < 16 ); | |
| 1592 assert( 0.0 <= calc_lead_tissue_limit && calc_lead_tissue_limit <= 14.0); | |
| 167 | 1593 } |
| 1594 | |
| 1595 ////////////////////////////////////////////////////////////////////////////// | |
| 1596 // calc_nullzeit | |
| 1597 // | |
| 1598 // calculates the remaining bottom time | |
| 1599 // | |
| 1600 // unchanged in v.101 | |
| 1601 // | |
| 1602 static void calc_nullzeit(void) | |
| 1603 { | |
| 203 | 1604 overlay unsigned char loop; |
| 200 | 1605 update_startvalues(); |
| 167 | 1606 |
| 116 | 1607 char_O_nullzeit = 0; |
| 167 | 1608 for(loop = 1; loop <= 17; loop++) |
| 116 | 1609 { |
| 1610 backup_sim_pres_tissue(); | |
| 197 | 1611 sim_tissue(2); // 10 min. |
| 192 | 1612 sim_limit(GF_high); |
| 167 | 1613 |
| 192 | 1614 if( sim_lead_tissue_limit > pres_surface ) // changed in v.102 , if guiding tissue can not be exposed to surface pressure immediately |
| 185 | 1615 { |
| 1616 restore_sim_pres_tissue(); | |
| 1617 break; | |
| 1618 } | |
| 1619 // Validate once we know its good. | |
| 1620 char_O_nullzeit += 10; | |
| 167 | 1621 } |
| 1622 | |
| 116 | 1623 if (char_O_nullzeit < 60) |
| 1624 { | |
| 167 | 1625 for(loop=1; loop <= 10; loop++) |
| 116 | 1626 { |
| 197 | 1627 sim_tissue(1); // 1 min |
| 192 | 1628 sim_limit(GF_high); |
| 1629 | |
| 1630 if( sim_lead_tissue_limit > pres_surface) // changed in v.102 , if guiding tissue can not be exposed to surface pressure immediately | |
| 185 | 1631 break; |
| 1632 char_O_nullzeit++; | |
| 167 | 1633 } |
| 185 | 1634 } |
| 1635 } | |
| 116 | 1636 |
| 167 | 1637 ////////////////////////////////////////////////////////////////////////////// |
| 1638 // backup_sim_pres_tissue | |
| 1639 // | |
| 116 | 1640 void backup_sim_pres_tissue(void) |
| 1641 { | |
| 167 | 1642 overlay unsigned char x; |
| 1643 | |
| 1644 for(x = 0; x<32; x++) | |
| 126 | 1645 sim_pres_tissue_backup[x] = sim_pres_tissue[x]; |
| 167 | 1646 } |
| 116 | 1647 |
| 167 | 1648 ////////////////////////////////////////////////////////////////////////////// |
| 1649 // restore_sim_pres_tissue | |
| 1650 // | |
| 116 | 1651 void restore_sim_pres_tissue(void) |
| 1652 { | |
| 167 | 1653 overlay unsigned char x; |
| 1654 | |
| 1655 for(x = 0; x<32; x++) | |
| 126 | 1656 sim_pres_tissue[x] = sim_pres_tissue_backup[x]; |
| 167 | 1657 } |
| 116 | 1658 |
| 167 | 1659 ////////////////////////////////////////////////////////////////////////////// |
| 1660 // calc_ascenttime | |
| 1661 // | |
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1662 static void calc_ascenttime(void) |
| 116 | 1663 { |
| 126 | 1664 if (pres_respiration > pres_surface) |
| 1665 { | |
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1666 overlay unsigned char x; |
| 168 | 1667 |
| 192 | 1668 // + 0.7 to count 1 minute ascent time from 3 meter to surface |
| 1669 overlay float ascent = pres_respiration - pres_surface + 0.7; | |
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1670 if (ascent < 0.0) |
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1671 ascent = 0.0; |
| 203 | 1672 int_O_ascenttime = (unsigned short)(ascent + 0.99); |
| 168 | 1673 |
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1674 for(x=0; x<32 && internal_deco_depth[x]; x++) |
| 203 | 1675 int_O_ascenttime += (unsigned short)internal_deco_time[x]; |
| 126 | 1676 } |
| 1677 else | |
| 168 | 1678 int_O_ascenttime = 0; |
| 167 | 1679 } |
| 116 | 1680 |
| 167 | 1681 ////////////////////////////////////////////////////////////////////////////// |
| 1682 // update_startvalues | |
| 1683 // | |
| 116 | 1684 // updated in v.102 |
| 167 | 1685 // |
| 116 | 1686 void update_startvalues(void) |
| 1687 { | |
| 167 | 1688 overlay unsigned char x; |
| 116 | 1689 |
| 201 | 1690 // Start ascent simulation with current tissue partial pressures. |
| 116 | 1691 for (x = 0;x<16;x++) |
| 1692 { | |
| 1693 sim_pres_tissue[x] = pres_tissue[x]; | |
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1694 (sim_pres_tissue+16)[x] = (pres_tissue+16)[x]; |
| 116 | 1695 } |
| 197 | 1696 |
| 201 | 1697 // No leading tissue (yet) for this ascent simulation. |
| 197 | 1698 sim_lead_tissue_limit = 0.0; |
| 1699 sim_lead_tissue_no = 255; | |
| 167 | 1700 } |
| 116 | 1701 |
| 167 | 1702 ////////////////////////////////////////////////////////////////////////////// |
| 192 | 1703 // sim_tissue |
| 167 | 1704 // |
| 116 | 1705 // optimized in v.101 |
| 167 | 1706 // |
| 1707 // Function very simular to calc_tissue, but: | |
| 1708 // + Use a 1min or 10min period. | |
| 1709 // + Do it on sim_pres_tissue, instead of pres_tissue. | |
| 184 | 1710 static void sim_tissue(PARAMETER unsigned char period) |
| 116 | 1711 { |
| 251 | 1712 assert( 0.00 <= ppN2 && ppN2 < 11.2 ); // 80% N2 at 130m |
| 1713 assert( 0.00 <= ppHe && ppHe < 12.6 ); // 90% He at 130m | |
| 236 | 1714 |
| 192 | 1715 for(ci=0; ci<16; ci++) |
| 126 | 1716 { |
| 258 | 1717 read_buhlmann_times(period); // 1 or 10 minute(s) interval |
| 165 | 1718 |
| 126 | 1719 // N2 |
| 236 | 1720 temp_tissue = (ppN2 - sim_pres_tissue[ci]) * var_N2_e; |
| 126 | 1721 temp_tissue_safety(); |
| 167 | 1722 sim_pres_tissue[ci] += temp_tissue; |
| 126 | 1723 |
| 1724 // He | |
| 200 | 1725 temp_tissue = (ppHe - (sim_pres_tissue+16)[ci]) * var_He_e; |
| 126 | 1726 temp_tissue_safety(); |
| 167 | 1727 (sim_pres_tissue+16)[ci] += temp_tissue; |
| 192 | 1728 } |
| 167 | 1729 } |
| 116 | 1730 |
| 167 | 1731 ////////////////////////////////////////////////////////////////////////////// |
| 192 | 1732 // sim_limit() |
| 1733 // | |
| 1734 // New in v.111 | |
| 1735 // | |
| 1736 // Function separated from sim_tissue() to allow recomputing limit on | |
| 1737 // different depth, because it depends on current gradient factor. | |
| 167 | 1738 // |
| 192 | 1739 static void sim_limit(PARAMETER float GF_current) |
| 116 | 1740 { |
| 212 | 1741 assert( 0.0 < GF_current && GF_current <= 1.0f); |
| 1742 | |
| 192 | 1743 sim_lead_tissue_limit = 0.0; |
| 212 | 1744 sim_lead_tissue_no = 0; // If no one is critic, keep first tissue. |
| 192 | 1745 |
| 1746 for(ci=0; ci<16; ci++) | |
| 1747 { | |
| 241 | 1748 overlay float N2 = sim_pres_tissue[ci]; |
| 1749 overlay float He = (sim_pres_tissue+16)[ci]; | |
| 1750 overlay float p = N2 + He; | |
| 192 | 1751 |
| 258 | 1752 read_buhlmann_coefficients(); |
| 241 | 1753 var_N2_a = (var_N2_a * N2 + var_He_a * He) / p; |
| 1754 var_N2_b = (var_N2_b * N2 + var_He_b * He) / p; | |
| 192 | 1755 |
| 1756 // Apply the Eric Baker's varying gradient factor correction. | |
| 1757 // Note: the correction factor depends both on GF and b, | |
| 1758 // Actual values are in the 1.5 .. 1.0 range (for a GF=30%), | |
| 1759 // so that can change who is the leading gas... | |
| 1760 // Note: Also depends of the GF_current... | |
| 1761 if( char_I_deco_model == 1 ) | |
| 1762 p = ( p - var_N2_a * GF_current) * var_N2_b | |
| 1763 / (GF_current + var_N2_b * (1.0 - GF_current)); | |
| 1764 else | |
| 1765 p = (p - var_N2_a) * var_N2_b; | |
| 237 | 1766 if( p < 0.0 ) p = 0.0; |
| 192 | 1767 |
| 1768 if( p > sim_lead_tissue_limit ) | |
| 1769 { | |
| 1770 sim_lead_tissue_no = ci; | |
| 1771 sim_lead_tissue_limit = p; | |
| 1772 } | |
| 1773 } // for ci | |
| 197 | 1774 |
| 1775 assert( sim_lead_tissue_no < 16 ); | |
| 237 | 1776 assert( 0.0 <= sim_lead_tissue_limit && sim_lead_tissue_limit <= 14.0 ); |
| 167 | 1777 } |
| 116 | 1778 |
| 167 | 1779 ////////////////////////////////////////////////////////////////////////////// |
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1780 // clear_deco_table |
| 167 | 1781 // |
| 1782 // unchanged in v.101 | |
| 1783 // | |
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1784 static void clear_deco_table(void) |
| 116 | 1785 { |
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1786 overlay unsigned char x; |
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1787 |
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1788 for(x=0; x<32; ++x) |
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1789 { |
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1790 internal_deco_time [x] = 0; |
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1791 internal_deco_depth[x] = 0; |
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1792 } |
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1793 } |
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1794 |
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1795 ////////////////////////////////////////////////////////////////////////////// |
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1796 // update_deco_table |
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1797 // |
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1798 // Add 1 min to current stop. |
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1799 // |
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1800 // Inputs: |
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1801 // temp_depth_limit = stop's depth, in meters. |
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1802 // In/Out: |
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1803 // internal_deco_depth[] : depth (in meters) of each stops. |
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1804 // internal_deco_time [] : time (in minutes) of each stops. |
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1805 // |
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1806 static void update_deco_table() |
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1807 { |
| 192 | 1808 overlay unsigned char x; |
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1809 assert( temp_depth_limit < 128 ); // Can't be negativ (overflown). |
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1810 assert( temp_depth_limit > 0 ); // No stop at surface... |
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1811 |
| 192 | 1812 for(x=0; x<32; ++x) |
| 1813 { | |
| 212 | 1814 // Make sure deco-stops are recorded in order: |
| 1815 assert( !internal_deco_depth[x] || temp_depth_limit <= internal_deco_depth[x] ); | |
| 1816 | |
| 200 | 1817 if( internal_deco_depth[x] == temp_depth_limit ) |
| 192 | 1818 { |
| 1819 // Do not overflow (max 255') | |
| 1820 if( internal_deco_time[x] < 255 ) | |
| 1821 { | |
| 1822 internal_deco_time[x]++; | |
| 1823 return; | |
| 1824 } | |
| 1825 // But store extra in the next stop... | |
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1826 } |
| 192 | 1827 |
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1828 if( internal_deco_depth[x] == 0 ) |
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1829 { |
| 192 | 1830 internal_deco_depth[x] = temp_depth_limit; |
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1831 internal_deco_time[x] = 1; |
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1832 return; |
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1833 } |
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1834 } |
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1835 |
| 192 | 1836 // Can't store stops at more than 96m. |
| 1837 // Or stops at less that 3m too. | |
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1838 // Just do nothing with that... |
| 167 | 1839 } |
| 116 | 1840 |
| 167 | 1841 ////////////////////////////////////////////////////////////////////////////// |
| 1842 // calc_gradient_factor | |
| 1843 // | |
| 165 | 1844 // optimized in v.101 (var_N2_a) |
| 116 | 1845 // new code in v.102 |
| 167 | 1846 // |
| 1847 static void calc_gradient_factor(void) | |
| 116 | 1848 { |
| 197 | 1849 overlay float gf; |
| 237 | 1850 |
| 197 | 1851 assert( char_O_gtissue_no < 16 ); |
| 237 | 1852 assert( 0.800 <= pres_respiration && pres_respiration < 14.0 ); |
| 197 | 1853 |
| 116 | 1854 // tissue > respiration (entsaettigungsvorgang) |
| 1855 // gradient ist wieviel prozent an limit mit basis tissue | |
| 1856 // dh. 0% = respiration == tissue | |
| 1857 // dh. 100% = respiration == limit | |
| 197 | 1858 temp_tissue = pres_tissue[char_O_gtissue_no] + (pres_tissue+16)[char_O_gtissue_no]; |
| 1859 if( temp_tissue < pres_respiration ) | |
| 1860 gf = 0.0; | |
| 1861 else | |
| 1862 { | |
| 1863 gf = (temp_tissue - pres_respiration) | |
| 258 | 1864 / (temp_tissue - calc_lead_tissue_limit) |
| 197 | 1865 * 100.0; |
| 1866 if( gf > 255.0 ) gf = 255.0; | |
| 1867 if( gf < 0.0 ) gf = 0.0; | |
| 1868 } | |
| 1869 char_O_gradient_factor = (unsigned char)gf; | |
| 116 | 1870 |
| 1871 if (char_I_deco_model == 1) // calculate relative gradient factor | |
| 1872 { | |
| 197 | 1873 overlay float rgf; |
| 1874 | |
| 1875 if( low_depth == 0 ) | |
| 1876 rgf = GF_high; | |
| 1877 else | |
| 1878 { | |
| 241 | 1879 overlay float temp1 = low_depth * 0.09985; |
| 197 | 1880 overlay float temp2 = pres_respiration - pres_surface; |
| 186 | 1881 |
| 197 | 1882 if (temp2 <= 0) |
| 1883 rgf = GF_high; | |
| 1884 else if (temp2 >= temp1) | |
| 1885 rgf = GF_low; | |
| 1886 else | |
| 1887 rgf = GF_low + (temp1 - temp2)/temp1*GF_delta; | |
| 1888 } | |
| 186 | 1889 |
| 197 | 1890 rgf = gf / rgf; // gf is already in percent |
| 1891 if( rgf < 0.0 ) rgf = 0.0; | |
| 1892 if( rgf > 255.0 ) rgf = 255.0; | |
| 1893 char_O_relative_gradient_GF = (unsigned char)rgf; | |
| 116 | 1894 } // calc relative gradient factor |
| 1895 else | |
| 1896 { | |
| 186 | 1897 char_O_relative_gradient_GF = char_O_gradient_factor; |
| 116 | 1898 } |
| 167 | 1899 } |
| 116 | 1900 |
| 167 | 1901 ////////////////////////////////////////////////////////////////////////////// |
| 1902 // deco_calc_desaturation_time | |
| 1903 // | |
| 116 | 1904 // FIXED N2_ratio |
| 1905 // unchanged in v.101 | |
| 233 | 1906 // Inputs: int_I_pres_surface, ppWVapour, char_I_desaturation_multiplier |
| 1907 // Outputs: int_O_desaturation_time, char_O_tissue_saturation[0..31] | |
| 167 | 1908 // |
| 116 | 1909 void deco_calc_desaturation_time(void) |
| 1910 { | |
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1911 RESET_C_STACK |
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1912 |
| 233 | 1913 assert( 800 < int_I_pres_surface && int_I_pres_surface < 1100 ); |
| 1914 assert( 0 < char_I_desaturation_multiplier && char_I_desaturation_multiplier <= 100 ); | |
| 1915 | |
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1916 #ifndef CROSS_COMPILE |
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1917 // Note: we don't use far rom pointer, because the |
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1918 // 24 bits is to complex, hence we have to set |
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1919 // the UPPER page ourself... |
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1920 // --> Set zero if tables are moved to lower pages ! |
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1921 _asm |
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1922 movlw 1 |
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1923 movwf TBLPTRU,0 |
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1924 _endasm |
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1925 #endif |
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1926 |
| 237 | 1927 N2_ratio = 0.7902; // FIXED sum as stated in bühlmann |
| 233 | 1928 pres_surface = int_I_pres_surface * 0.001; |
| 236 | 1929 ppN2 = N2_ratio * (pres_surface - ppWVapour); |
| 126 | 1930 int_O_desaturation_time = 0; |
| 1931 float_desaturation_multiplier = char_I_desaturation_multiplier / 142.0; // new in v.101 (70,42%/100.=142) | |
| 233 | 1932 |
| 126 | 1933 for (ci=0;ci<16;ci++) |
| 1934 { | |
| 251 | 1935 overlay unsigned short desat_time; // For a particular compartiment, in min. |
| 1936 overlay float temp1; | |
| 1937 overlay float temp2; | |
| 1938 overlay float temp3; | |
| 1939 overlay float temp4; | |
| 1940 | |
| 126 | 1941 // saturation_time (for flight) and N2_saturation in multiples of halftime |
| 1942 // version v.100: 1.1 = 10 percent distance to totally clean (totally clean is not possible, would take infinite time ) | |
| 1943 // new in version v.101: 1.07 = 7 percent distance to totally clean (totally clean is not possible, would take infinite time ) | |
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1944 // changes in v.101: 1.05 = 5 percent dist to totally clean is new desaturation point for display and NoFly calculations |
| 126 | 1945 // N2 |
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1946 temp1 = 1.05 * ppN2 - pres_tissue[ci]; |
| 236 | 1947 temp2 = ppN2 - pres_tissue[ci]; |
| 126 | 1948 if (temp2 >= 0.0) |
| 1949 { | |
| 233 | 1950 temp1 = 0.0; |
| 1951 temp2 = 0.0; | |
| 126 | 1952 } |
| 1953 else | |
| 1954 temp1 = temp1 / temp2; | |
| 251 | 1955 if( 0.0 < temp1 && temp1 < 1.0 ) |
| 126 | 1956 { |
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1957 overlay float var_N2_halftime = buhlmann_ht[ci]; |
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1958 assert( 4.0 <= var_N2_halftime && var_N2_halftime <= 635.0 ); |
| 252 | 1959 |
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1960 // 0.6931 is ln(2), because the math function log() calculates with a base of e not 2 as requested. |
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1961 // minus because log is negative. |
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1962 temp1 = log(1.0 - temp1) / -0.6931; // temp1 is the multiples of half times necessary. |
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1963 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 |
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1964 |
| 126 | 1965 } |
| 1966 else | |
| 1967 { | |
| 233 | 1968 temp1 = 0.0; |
| 1969 temp2 = 0.0; | |
| 126 | 1970 } |
| 116 | 1971 |
| 126 | 1972 // He |
| 167 | 1973 temp3 = 0.1 - (pres_tissue+16)[ci]; |
| 126 | 1974 if (temp3 >= 0.0) |
| 1975 { | |
| 233 | 1976 temp3 = 0.0; |
| 1977 temp4 = 0.0; | |
| 126 | 1978 } |
| 1979 else | |
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1980 temp3 = - temp3 / (pres_tissue+16)[ci]; |
| 251 | 1981 if( 0.0 < temp3 && temp3 < 1.0 ) |
| 126 | 1982 { |
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1983 overlay float var_He_halftime = (buhlmann_ht+16)[ci]; |
| 261 | 1984 assert( 1.51 <= var_He_halftime && var_He_halftime <= 240.03 ); |
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1985 |
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1986 temp3 = log(1.0 - temp3) / -0.6931; // temp1 is the multiples of half times necessary. |
| 126 | 1987 // 0.6931 is ln(2), because the math function log() calculates with a base of e not 2 as requested. |
| 1988 // minus because log is negative | |
| 165 | 1989 temp4 = var_He_halftime * temp3 / float_desaturation_multiplier; // time necessary (in minutes ) for "complete" desaturation, new in v.101 float_desaturation_multiplier |
| 126 | 1990 } |
| 1991 else | |
| 1992 { | |
| 233 | 1993 temp3 = 0.0; |
| 1994 temp4 = 0.0; | |
| 126 | 1995 } |
| 116 | 1996 |
| 126 | 1997 // saturation_time (for flight) |
| 1998 if (temp4 > temp2) | |
| 203 | 1999 desat_time = (unsigned short)temp4; |
| 126 | 2000 else |
| 203 | 2001 desat_time = (unsigned short)temp2; |
| 252 | 2002 |
| 251 | 2003 if(desat_time > int_O_desaturation_time) |
| 2004 int_O_desaturation_time = desat_time; | |
| 116 | 2005 |
| 126 | 2006 // N2 saturation in multiples of halftime for display purposes |
| 2007 temp2 = temp1 * 20.0; // 0 = 1/8, 120 = 0, 249 = 8 | |
| 2008 temp2 = temp2 + 80.0; // set center | |
| 2009 if (temp2 < 0.0) | |
| 2010 temp2 = 0.0; | |
| 2011 if (temp2 > 255.0) | |
| 2012 temp2 = 255.0; | |
| 2013 char_O_tissue_saturation[ci] = (char)temp2; | |
| 233 | 2014 |
| 126 | 2015 // He saturation in multiples of halftime for display purposes |
| 2016 temp4 = temp3 * 20.0; // 0 = 1/8, 120 = 0, 249 = 8 | |
| 2017 temp4 = temp4 + 80.0; // set center | |
| 2018 if (temp4 < 0.0) | |
| 2019 temp4 = 0.0; | |
| 2020 if (temp4 > 255.0) | |
| 2021 temp4 = 255.0; | |
| 167 | 2022 (char_O_tissue_saturation+16)[ci] = (char)temp4; |
| 126 | 2023 } // for |
| 167 | 2024 } |
| 116 | 2025 |
| 167 | 2026 ////////////////////////////////////////////////////////////////////////////// |
| 2027 // calc_wo_deco_step_1_min | |
| 2028 // | |
| 116 | 2029 // FIXED N2 Ratio |
| 2030 // optimized in v.101 (...saturation_multiplier) | |
| 2031 // desaturation slowed down to 70,42% | |
| 167 | 2032 // |
| 2033 static void calc_wo_deco_step_1_min(void) | |
| 116 | 2034 { |
| 251 | 2035 assert( 800 < int_I_pres_surface && int_I_pres_surface < 1100 ); |
| 2036 assert( 800 < int_I_pres_respiration && int_I_pres_respiration < 1100 ); | |
| 2037 assert( 100 <= char_I_saturation_multiplier && char_I_saturation_multiplier < 200 ); | |
| 2038 assert( 0 < char_I_desaturation_multiplier && char_I_desaturation_multiplier <= 100 ); | |
| 2039 | |
| 116 | 2040 if(flag_in_divemode) |
| 2041 { | |
| 2042 flag_in_divemode = 0; | |
| 2043 set_dbg_end_of_dive(); | |
| 2044 } | |
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2045 |
| 126 | 2046 N2_ratio = 0.7902; // FIXED, sum lt. buehlmann |
| 233 | 2047 pres_respiration = int_I_pres_respiration * 0.001; // assembler code uses different digit system |
| 2048 pres_surface = int_I_pres_surface * 0.001; // the b"uhlmann formula using pres_surface does not use the N2_ratio | |
| 236 | 2049 ppN2 = N2_ratio * (pres_respiration - ppWVapour); // ppWVapour is the extra pressure in the body |
| 200 | 2050 ppHe = 0.0; |
| 126 | 2051 float_desaturation_multiplier = char_I_desaturation_multiplier / 142.0; // new in v.101 (70,42%/100.=142) |
| 197 | 2052 float_saturation_multiplier = char_I_saturation_multiplier * 0.01; |
| 126 | 2053 |
| 192 | 2054 calc_tissue(1); // update the pressure in the 32 tissues in accordance with the new ambient pressure |
| 167 | 2055 |
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2056 clear_deco_table(); |
| 200 | 2057 char_O_deco_status = 3; // surface new in v.102 : stays in surface state. |
| 126 | 2058 char_O_nullzeit = 0; |
| 168 | 2059 int_O_ascenttime = 0; |
| 126 | 2060 calc_gradient_factor(); |
| 167 | 2061 } |
| 126 | 2062 |
| 167 | 2063 ////////////////////////////////////////////////////////////////////////////// |
| 2064 ////////////////////////////////////////////////////////////////////////////// | |
| 2065 ////////////////////////////////// deco_hash ///////////////////////////////// | |
| 2066 ////////////////////////////////////////////////////////////////////////////// | |
| 2067 ////////////////////////////////////////////////////////////////////////////// | |
| 126 | 2068 |
| 184 | 2069 #ifndef CROSS_COMPILE |
| 116 | 2070 void deco_hash(void) |
| 2071 { | |
| 167 | 2072 overlay unsigned char md_i, md_j; // Loop index. |
| 2073 overlay unsigned char md_t; | |
| 2074 overlay unsigned char md_buffer[16]; | |
| 2075 overlay unsigned char md_temp; | |
| 203 | 2076 overlay unsigned short md_pointer; |
| 167 | 2077 |
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2078 RESET_C_STACK |
| 126 | 2079 |
| 2080 // init | |
| 164 | 2081 for(md_i=0;md_i<16;md_i++) |
| 126 | 2082 { |
| 2083 md_state[md_i] = 0; | |
| 164 | 2084 char_O_hash[md_i] = 0; |
| 126 | 2085 } // for md_i 16 |
| 116 | 2086 |
| 126 | 2087 _asm |
| 167 | 2088 movlw 0x01 // md_pi address. |
| 2089 movwf TBLPTRU,0 | |
| 2090 movlw 0x7E | |
| 2091 movwf TBLPTRH,0 | |
| 2092 movlw 0x00 | |
| 2093 movwf TBLPTRL,0 | |
| 126 | 2094 _endasm; |
| 165 | 2095 md_i = 0; |
| 2096 do { | |
| 126 | 2097 _asm |
| 2098 TBLRDPOSTINC | |
| 2099 movff TABLAT,md_temp | |
| 2100 _endasm | |
| 165 | 2101 md_pi_subst[md_i++] = md_temp; |
| 2102 } while( md_i != 0 ); | |
| 2103 | |
| 126 | 2104 _asm |
| 167 | 2105 movlw 0x00 |
| 2106 movwf TBLPTRU,0 | |
| 2107 movlw 0x00 | |
| 2108 movwf TBLPTRH,0 | |
| 2109 movlw 0x00 | |
| 2110 movwf TBLPTRL,0 | |
| 126 | 2111 _endasm |
| 167 | 2112 |
| 126 | 2113 // cycle buffers |
| 2114 for (md_pointer=0x0000;md_pointer<0x17f3;md_pointer++) | |
| 2115 { | |
| 2116 md_t = 0; | |
| 2117 for (md_i=0;md_i<16;md_i++) | |
| 2118 { | |
| 2119 if(md_pointer == 9) | |
| 164 | 2120 md_temp = char_O_hash[md_i]; |
| 126 | 2121 else |
| 2122 { | |
| 2123 _asm | |
| 167 | 2124 TBLRDPOSTINC |
| 2125 movff TABLAT,md_temp | |
| 126 | 2126 _endasm |
| 2127 } // else | |
| 167 | 2128 |
| 2129 md_buffer[md_i] = md_temp; | |
| 186 | 2130 md_state[md_i+16] = md_temp; |
| 2131 md_state[md_i+32] = (unsigned char)(md_temp ^ md_state[md_i]); | |
| 126 | 2132 } // for md_i 16 |
| 2133 | |
| 2134 for (md_i=0;md_i<18;md_i++) | |
| 2135 { | |
| 2136 for (md_j=0;md_j<48;md_j++) | |
| 2137 { | |
| 167 | 2138 md_state[md_j] ^= md_pi_subst[md_t]; |
| 126 | 2139 md_t = md_state[md_j]; |
| 2140 } // for md_j 48 | |
| 2141 md_t = (unsigned char)(md_t+1); | |
| 2142 } // for md_i 18 | |
| 164 | 2143 md_t = char_O_hash[15]; |
| 126 | 2144 |
| 2145 for (md_i=0;md_i<16;md_i++) | |
| 2146 { | |
| 167 | 2147 char_O_hash[md_i] ^= md_pi_subst[(md_buffer[md_i] ^ md_t)]; |
| 164 | 2148 md_t = char_O_hash[md_i]; |
| 126 | 2149 } // for md_i 16 |
| 2150 } // for md_pointer | |
| 116 | 2151 } // void deco_hash(void) |
| 184 | 2152 #endif |
| 116 | 2153 |
| 167 | 2154 ////////////////////////////////////////////////////////////////////////////// |
| 2155 // deco_clear_CNS_fraction | |
| 2156 // | |
| 116 | 2157 // new in v.101 |
| 167 | 2158 // |
| 116 | 2159 void deco_clear_CNS_fraction(void) |
| 2160 { | |
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2161 RESET_C_STACK |
| 237 | 2162 |
| 126 | 2163 CNS_fraction = 0.0; |
| 2164 char_O_CNS_fraction = 0; | |
| 167 | 2165 } |
| 116 | 2166 |
| 167 | 2167 ////////////////////////////////////////////////////////////////////////////// |
| 2168 // deco_calc_CNS_fraction | |
| 2169 // | |
| 116 | 2170 // new in v.101 |
| 2171 // optimized in v.102 : with new variables char_I_actual_ppO2 and actual_ppO2 | |
| 167 | 2172 // |
| 116 | 2173 // Input: char_I_actual_ppO2 |
| 2174 // Output: char_O_CNS_fraction | |
| 2175 // Uses and Updates: CNS_fraction | |
| 2176 // Uses: acutal_ppO2 | |
| 167 | 2177 // |
| 116 | 2178 void deco_calc_CNS_fraction(void) |
| 2179 { | |
| 167 | 2180 overlay float actual_ppO2; |
| 126 | 2181 RESET_C_STACK |
| 167 | 2182 |
| 237 | 2183 assert( 0.0 <= CNS_fraction && CNS_fraction <= 2.5 ); |
| 2184 assert( char_I_actual_ppO2 > 15 ); | |
| 2185 | |
| 126 | 2186 actual_ppO2 = (float)char_I_actual_ppO2 / 100.0; |
| 116 | 2187 |
| 126 | 2188 if (char_I_actual_ppO2 < 50) |
| 2189 CNS_fraction = CNS_fraction;// no changes | |
| 2190 else if (char_I_actual_ppO2 < 60) | |
| 2191 CNS_fraction = 1/(-54000.0 * actual_ppO2 + 54000.0) + CNS_fraction; | |
| 2192 else if (char_I_actual_ppO2 < 70) | |
| 2193 CNS_fraction = 1/(-45000.0 * actual_ppO2 + 48600.0) + CNS_fraction; | |
| 2194 else if (char_I_actual_ppO2 < 80) | |
| 2195 CNS_fraction = 1/(-36000.0 * actual_ppO2 + 42300.0) + CNS_fraction; | |
| 2196 else if (char_I_actual_ppO2 < 90) | |
| 2197 CNS_fraction = 1/(-27000.0 * actual_ppO2 + 35100.0) + CNS_fraction; | |
| 2198 else if (char_I_actual_ppO2 < 110) | |
| 2199 CNS_fraction = 1/(-18000.0 * actual_ppO2 + 27000.0) + CNS_fraction; | |
| 2200 else if (char_I_actual_ppO2 < 150) | |
| 2201 CNS_fraction = 1/(-9000.0 * actual_ppO2 + 17100.0) + CNS_fraction; | |
| 2202 else if (char_I_actual_ppO2 < 160) | |
| 2203 CNS_fraction = 1/(-22500.0 * actual_ppO2 + 37350.0) + CNS_fraction; | |
| 2204 else if (char_I_actual_ppO2 < 165) | |
| 2205 CNS_fraction = 0.000755 + CNS_fraction; // Arieli et all.(2002): Modeling pulmonary and CNS O2 toxicity... Formula (A1) based on value for 1.55 and c=20 | |
| 2206 else if (char_I_actual_ppO2 < 170) | |
| 2207 CNS_fraction = 0.00102 + CNS_fraction; // example calculation: Sqrt((1.7/1.55)^20)*0.000404 | |
| 2208 else if (char_I_actual_ppO2 < 175) | |
| 2209 CNS_fraction = 0.00136 + CNS_fraction; | |
| 2210 else if (char_I_actual_ppO2 < 180) | |
| 2211 CNS_fraction = 0.00180 + CNS_fraction; | |
| 2212 else if (char_I_actual_ppO2 < 185) | |
| 2213 CNS_fraction = 0.00237 + CNS_fraction; | |
| 2214 else if (char_I_actual_ppO2 < 190) | |
| 2215 CNS_fraction = 0.00310 + CNS_fraction; | |
| 2216 else if (char_I_actual_ppO2 < 195) | |
| 2217 CNS_fraction = 0.00401 + CNS_fraction; | |
| 2218 else if (char_I_actual_ppO2 < 200) | |
| 2219 CNS_fraction = 0.00517 + CNS_fraction; | |
| 2220 else if (char_I_actual_ppO2 < 230) | |
| 2221 CNS_fraction = 0.0209 + CNS_fraction; | |
| 2222 else | |
| 2223 CNS_fraction = 0.0482 + CNS_fraction; // value for 2.5 | |
| 116 | 2224 |
| 126 | 2225 if (CNS_fraction > 2.5) |
| 2226 CNS_fraction = 2.5; | |
| 2227 if (CNS_fraction < 0.0) | |
| 2228 CNS_fraction = 0.0; | |
| 2229 | |
| 2230 char_O_CNS_fraction = (char)((CNS_fraction + 0.005)* 100.0); | |
| 167 | 2231 } |
| 116 | 2232 |
| 167 | 2233 ////////////////////////////////////////////////////////////////////////////// |
| 2234 // deco_calc_CNS_decrease_15min | |
| 2235 // | |
| 116 | 2236 // new in v.101 |
| 167 | 2237 // |
| 116 | 2238 // calculates the half time of 90 minutes in 6 steps of 15 min |
| 200 | 2239 // (Used in sleepmode, for low battery mode). |
| 167 | 2240 // |
| 116 | 2241 // Output: char_O_CNS_fraction |
| 2242 // Uses and Updates: CNS_fraction | |
| 167 | 2243 // |
| 116 | 2244 void deco_calc_CNS_decrease_15min(void) |
| 2245 { | |
| 237 | 2246 RESET_C_STACK |
| 2247 assert( 0.0 <= CNS_fraction && CNS_fraction <= 2.5 ); | |
| 2248 | |
| 126 | 2249 CNS_fraction = 0.890899 * CNS_fraction; |
| 167 | 2250 char_O_CNS_fraction = (char)(CNS_fraction * 100.0 + 0.5); |
| 2251 } | |
| 116 | 2252 |
| 167 | 2253 ////////////////////////////////////////////////////////////////////////////// |
| 2254 // deco_calc_percentage | |
| 2255 // | |
| 116 | 2256 // new in v.101 |
| 167 | 2257 // |
| 116 | 2258 // calculates int_I_temp * char_I_temp / 100 |
| 2259 // output is int_I_temp | |
| 200 | 2260 // |
| 2261 // Used to compute NoFly remaining time. | |
|
222
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2262 // |
| 116 | 2263 void deco_calc_percentage(void) |
| 2264 { | |
|
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|
2265 RESET_C_STACK |
|
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2266 |
| 237 | 2267 assert( 60 <= char_I_temp && char_I_temp <= 100 ); |
| 2268 assert( 0 <= int_I_temp && int_I_temp < 2880 ); // Less than 48h... | |
| 2269 | |
|
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2270 int_I_temp = (unsigned short)(((float)int_I_temp * (float)char_I_temp) * 0.01 ); |
| 237 | 2271 |
| 2272 assert( int_I_temp < 1440 ); // Less than 24h... | |
|
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2273 } |
|
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2274 |
|
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2275 |
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2276 ////////////////////////////////////////////////////////////////////////////// |
|
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2277 // deco_gas_volumes |
|
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2278 // |
|
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2279 // new in v.111 |
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2280 // |
|
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2281 // calculates volumes for each gas. |
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2282 // |
|
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2283 // Input: char_I_bottom_depth, char_I_bottom_time for planned dive. |
|
240
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2284 // Gas list. |
|
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2285 // char_I_first_gas is the bottom gas. |
|
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2286 // decoplan (char_O_deco_depth, char_O_deco_time). |
|
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2287 // CF#54 == TRUE if shallowest stop first. |
|
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2288 // CF#56 == bottom deci-liters/minutes (0.5 .. 50.0) |
|
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2289 // CF#57 == deco deci-liters/minutes (0.5 .. 50.0). |
| 224 | 2290 // Output: int_O_gas_volumes[0..4] in litters * 0.1 |
|
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2291 // |
|
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2292 void deco_gas_volumes(void) |
|
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2293 { |
|
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2294 overlay float volumes[5]; |
|
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2295 overlay float ascent_usage; |
|
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2296 overlay unsigned char i, deepest_first; |
| 241 | 2297 overlay unsigned char gas; |
|
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2298 RESET_C_STACK |
|
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2299 |
|
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2300 //---- initialize with bottom consumption -------------------------------- |
|
240
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2301 for(i=0; i<5; ++i) // Nothing yet... |
|
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2302 volumes[i] = 0.0; |
|
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2303 |
| 241 | 2304 assert(1 <= char_I_first_gas && char_I_first_gas <= 5); |
| 2305 gas = char_I_first_gas - 1; | |
| 2306 | |
| 2307 volumes[gas] | |
|
240
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2308 = (char_I_bottom_depth*0.1 + 1.0) // Use Psurface = 1.0 bar. |
|
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2309 * char_I_bottom_time // in minutes. |
|
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2310 * read_custom_function(56) // In deci-liter/minutes. |
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2311 * 0.1; // deci-liters --> liters. |
|
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2312 |
|
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|
2313 //---- Ascent usage ------------------------------------------------------ |
|
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2314 |
|
234
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2315 deepest_first = read_custom_function(54) == 0; |
|
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2316 ascent_usage = read_custom_function(57) * 0.1; // In liter/minutes. |
|
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2317 |
| 224 | 2318 // Usage up to the first stop: |
| 2319 // - computed at MAX depth (easier, safer), | |
|
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2320 // - with an ascent speed of 10m/min. |
| 224 | 2321 // - with ascent litter / minutes. |
|
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2322 // - still using bottom gas: |
| 241 | 2323 volumes[gas] |
|
240
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2324 += (char_I_bottom_depth*0.1 + 1.0) // Depth -> bar |
|
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2325 * (char_I_bottom_depth - char_O_first_deco_depth) * 0.1 // ascent time (min) |
|
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2326 * ascent_usage; // Consumption ( xxx / min @ 1 bar) |
|
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2327 |
|
234
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2328 for(i=0; i<32; ++i) |
|
222
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2329 { |
| 241 | 2330 overlay unsigned char j; |
|
234
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2331 overlay unsigned char depth, time, ascent; |
|
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|
2332 |
|
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2333 // Manage stops in reverse order (CF#54) |
|
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|
2334 if( deepest_first ) |
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2335 { |
| 241 | 2336 time = char_O_deco_time[i]; |
|
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2337 if( time == 0 ) break; // End of table: done. |
|
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2338 |
|
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2339 ascent = depth = char_O_deco_depth[i]; |
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2340 if( i < 31 ) |
|
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2341 ascent -= char_O_deco_depth[i+1]; |
|
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2342 } |
|
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2343 else |
|
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2344 { |
|
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2345 time = char_O_deco_time[31-i]; |
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2346 if( time == 0 ) continue; // not yet: still searh table. |
|
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2347 |
|
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2348 ascent = depth = char_O_deco_depth[31-i]; |
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2349 if( i < 31 ) |
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2350 ascent -= char_O_deco_depth[30-i]; |
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2351 } |
|
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2352 |
|
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2353 // Gas switch depth ? |
| 241 | 2354 for(j=0; j<5; ++j) |
|
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2355 { |
|
234
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2356 if( depth <= char_I_deco_gas_change[j] ) |
| 241 | 2357 if( !char_I_deco_gas_change[gas] || (char_I_deco_gas_change[gas] > char_I_deco_gas_change[j]) ) |
| 224 | 2358 gas = j; |
|
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2359 } |
|
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|
2360 |
|
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2361 // usage during stop: |
| 224 | 2362 // Note: because first gas is not in there, increment gas+1 |
|
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2363 volumes[gas] += (depth*0.1 + 1.0) // depth --> bar. |
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2364 * time // in minutes. |
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2365 * ascent_usage // in xxx / min @ 1bar. |
|
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2366 // Plus usage during ascent to the next stop, at 10m/min. |
|
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2367 + (depth*0.1 + 1.0) |
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2368 * ascent*0.1 // meter --> min |
| 225 | 2369 * ascent_usage; |
|
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2370 } |
|
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2371 |
|
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2372 //---- convert results for the ASM interface ----------------------------- |
|
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2373 for(i=0; i<5; ++i) |
| 224 | 2374 if( volumes[i] > 6553.4 ) |
| 2375 int_O_gas_volumes[i] = 65535; | |
|
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2376 else |
| 224 | 2377 int_O_gas_volumes[i] = (unsigned short)(volumes[i]*10.0 + 0.5); |
| 116 | 2378 } |
| 2379 | |
| 167 | 2380 ////////////////////////////////////////////////////////////////////////////// |
| 2381 | |
| 116 | 2382 void deco_push_tissues_to_vault(void) |
| 2383 { | |
| 167 | 2384 overlay unsigned char x; |
|
122
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2385 RESET_C_STACK |
| 167 | 2386 |
| 116 | 2387 cns_vault = CNS_fraction; |
| 167 | 2388 for (x=0;x<32;x++) |
| 2389 pres_tissue_vault[x] = pres_tissue[x]; | |
| 116 | 2390 } |
| 167 | 2391 |
| 116 | 2392 void deco_pull_tissues_from_vault(void) |
| 2393 { | |
| 167 | 2394 overlay unsigned char x; |
|
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2395 RESET_C_STACK |
| 167 | 2396 |
| 116 | 2397 CNS_fraction = cns_vault; |
| 167 | 2398 for (x=0;x<32;x++) |
| 2399 pres_tissue[x] = pres_tissue_vault[x]; | |
| 116 | 2400 } |
| 2401 | |
| 167 | 2402 ////////////////////////////////////////////////////////////////////////////// |
| 2403 // | |
| 184 | 2404 #ifndef CROSS_COMPILE |
| 2405 void main() {} | |
| 2406 #endif |