Mercurial > public > mk2
annotate code_part1/OSTC_code_c_part2/p2_deco.c @ 167:cb055a7d75f3
+ Use overlay local vars.
+ Make all private functions static.
+ Merge calc_tissue 2sec and 1min
+ Merge sim_tissue 1min and 10min
+ Expose basic display utilities for c-code.
+ Prepare stand-alone utilities for p2_main.c testing platform.
+ New c utility: int read_custom_function(cf#)
| author | JeanDo |
|---|---|
| date | Mon, 24 Jan 2011 23:31:57 +0100 |
| parents | 8b5b848db4cd |
| children | 494587193f5d |
| 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 | |
| 61 // 10/14/08 v104: integration of temp_depth_last_deco for Gradient Model | |
| 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(). |
| 116 | 68 // |
| 167 | 69 // TODO: |
| 70 // + Make char_O_ascenttime an int. | |
| 71 // + Fusion deco array for both models. | |
| 72 // + Allow (CF) revesring stop order (while copying). | |
| 73 // + Allow (CF) delay for gas switch while predicting ascent. | |
| 74 // + Allow to abort MD2 calculation (have to restart next time). | |
| 75 // | |
| 76 // Literature: | |
| 116 | 77 // B"uhlmann, Albert: Tauchmedizin; 4. Auflage; |
| 78 // 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 | |
| 79 // Morrison, Stuart; 2000; DIY DECOMPRESSION; http://www.lizardland.co.uk/DIYDeco.html | |
| 80 // Balthasar, Steffen; Dekompressionstheorie I: Neo Haldane Modelle; http://www.txfreak.de/dekompressionstheorie_1.pdf | |
| 81 // Baker, Erik C.; Clearing Up The Confusion About "Deep Stops" | |
| 82 // Baker, Erik C.; Understanding M-values; http://www.txfreak.de/understanding_m-values.pdf | |
| 167 | 83 // |
| 84 // | |
| 116 | 85 |
| 86 // ********************* | |
| 87 // ** I N C L U D E S ** | |
| 88 // ********************* | |
| 89 #include <math.h> | |
| 167 | 90 |
| 91 // ************************* | |
| 92 // ** P R O T O T Y P E S ** | |
| 93 // ************************* | |
| 94 | |
| 95 static void calc_hauptroutine(void); | |
| 96 static void calc_tissue_2_secs(void); | |
| 97 static void calc_tissue_1_min(void); | |
| 98 static void calc_nullzeit(void); | |
| 99 static void backup_sim_pres_tissue(void); | |
| 100 static void restore_sim_pres_tissue(void); | |
| 101 | |
| 102 static void calc_without_deco(void); | |
| 103 static void clear_tissue(void); | |
| 104 static void calc_ascenttime(void); | |
| 105 static void update_startvalues(void); | |
| 106 static void clear_decoarray(void); | |
| 107 static void update_decoarray(void); | |
| 108 static void sim_tissue_1min(void); | |
| 109 static void sim_tissue_10min(void); | |
| 110 static void calc_gradient_factor(void); | |
| 111 static void calc_wo_deco_step_1_min(void); | |
| 112 | |
| 113 static void calc_hauptroutine_data_input(void); | |
| 114 static void calc_hauptroutine_update_tissues(void); | |
| 115 static void calc_hauptroutine_calc_deco(void); | |
| 116 static void calc_hauptroutine_calc_ascend_to_deco(void); | |
| 117 | |
| 118 static void calc_nextdecodepth_GF(void); | |
| 119 static void copy_deco_table_GF(void); | |
| 120 static void clear_internal_deco_table_GF(void); | |
| 121 static void update_internal_deco_table_GF(void); | |
| 116 | 122 |
| 123 // *********************************************** | |
| 124 // ** V A R I A B L E S D E F I N I T I O N S ** | |
| 125 // *********************************************** | |
| 126 | |
| 167 | 127 #include "p2_definitions.h" |
| 163 | 128 #include "../OSTC_code_c_part2/shared_definitions.h" |
| 116 | 129 |
| 163 | 130 //---- Bank 3 parameters ----------------------------------------------------- |
| 131 #pragma udata bank4=0x400 | |
| 116 | 132 |
| 133 static unsigned char lock_GF_depth_list; | |
| 134 static float temp_limit; | |
| 135 static float GF_low; | |
| 136 static float GF_high; | |
| 137 static float GF_delta; | |
| 138 static float GF_temp; | |
| 139 static float GF_step; | |
| 140 static float GF_step2; | |
| 141 static float temp_pres_gtissue; | |
| 142 static float temp_pres_gtissue_diff; | |
| 143 static float temp_pres_gtissue_limit_GF_low; | |
| 144 static float temp_pres_gtissue_limit_GF_low_below_surface; | |
| 145 static unsigned int temp_depth_limit; | |
| 146 static unsigned char temp_decotime; | |
| 147 static unsigned char temp_gtissue_no; | |
| 148 static unsigned int temp_depth_last_deco; // new in v.101 | |
| 149 | |
| 150 static unsigned char temp_depth_GF_low_meter; | |
| 151 static unsigned char internal_deco_pointer; | |
| 152 | |
| 167 | 153 static unsigned char internal_deco_table[32]; |
| 116 | 154 |
| 155 static char output[32]; // used by the math routines | |
| 156 | |
| 157 static float cns_vault; | |
| 158 | |
| 159 static float pres_tissue_vault[32]; | |
| 160 | |
| 163 | 161 //---- Bank 5 parameters ----------------------------------------------------- |
| 162 #pragma udata bank5=0x500 | |
| 163 | |
| 167 | 164 static unsigned char ci; |
| 116 | 165 static unsigned int int_temp_decostatus; |
| 166 static float pres_respiration; | |
| 167 static float pres_surface; | |
| 168 static float temp1; | |
| 169 static float temp2; | |
| 170 static float temp3; | |
| 171 static float temp4; | |
| 172 static float temp_deco; | |
| 173 static float temp_atem; | |
| 174 static float temp2_atem; | |
| 175 static float temp_tissue; | |
| 176 static float temp_surface; | |
| 177 static float N2_ratio; | |
| 178 static float He_ratio; | |
| 165 | 179 static float var_N2_a; |
| 180 static float var_N2_b; | |
| 181 static float var_He_a; | |
| 182 static float var_He_b; | |
| 183 static float var_N2_e; | |
| 184 static float var_He_e; | |
| 185 static float var_N2_halftime; | |
| 186 static float var_He_halftime; | |
| 116 | 187 static float pres_gtissue_limit; |
| 188 static float temp_pres_gtissue_limit; | |
| 189 | |
| 164 | 190 static float pres_diluent; // new in v.101 |
| 191 static float deco_diluent; // new in v.101 | |
| 192 static float const_ppO2; // new in v.101 | |
| 193 static float deco_ppO2_change; // new in v.101 | |
| 194 static float deco_ppO2; // new in v.101 | |
| 116 | 195 |
| 167 | 196 static float calc_N2_ratio; // new in v.101 |
| 197 static float calc_He_ratio; // new in v.101 | |
| 198 static float CNS_fraction; // new in v.101 | |
| 199 static float float_saturation_multiplier; // new in v.101 | |
| 200 static float float_desaturation_multiplier; // new in v.101 | |
| 201 static float float_deco_distance; // new in v.101 | |
| 202 static char flag_in_divemode; // new in v.108 | |
| 203 | |
| 204 static float deco_gas_change1; // new in v.101 | |
| 205 static float deco_gas_change2; // new in v.109 | |
| 206 static float deco_gas_change3; // new in v.109 | |
| 207 static float deco_gas_change4; // new in v.109 | |
| 208 static float deco_gas_change5; // new in v.109 | |
| 209 | |
| 210 static float deco_N2_ratio1; // new in v.101 | |
| 211 static float deco_He_ratio1; // new in v.101 | |
| 212 static float deco_N2_ratio2; // new in v.109 | |
| 213 static float deco_N2_ratio3; // new in v.109 | |
| 214 static float deco_N2_ratio4; // new in v.109 | |
| 215 static float deco_N2_ratio5; // new in v.109 | |
| 216 static float deco_He_ratio2; // new in v.109 | |
| 217 static float deco_He_ratio3; // new in v.109 | |
| 218 static float deco_He_ratio4; // new in v.109 | |
| 219 static float deco_He_ratio5; // new in v.109 | |
| 220 | |
| 221 | |
| 163 | 222 //---- Bank 6 parameters ----------------------------------------------------- |
| 223 #pragma udata bank6=0x600 | |
| 116 | 224 |
| 164 | 225 static float pres_tissue[32]; |
| 116 | 226 static float pres_tissue_limit[16]; |
| 227 static float sim_pres_tissue_limit[16]; | |
| 228 | |
| 163 | 229 //---- Bank 7 parameters ----------------------------------------------------- |
| 230 #pragma udata bank7=0x700 | |
| 231 | |
| 232 static float sim_pres_tissue[32]; // 32 floats = 128 bytes. | |
| 116 | 233 static float sim_pres_tissue_backup[32]; |
| 234 | |
| 163 | 235 //---- Bank 8 parameters ----------------------------------------------------- |
| 116 | 236 #pragma udata bank8=0x800 |
| 163 | 237 |
| 116 | 238 static char md_pi_subst[256]; |
|
122
3003a8040b78
FIX again reset C data stack and frame pointer when entering C code.
JeanDo
parents:
116
diff
changeset
|
239 #define C_STACK md_pi_subst // Overlay C-code data stack here, too. |
| 116 | 240 |
| 163 | 241 //---- Bank 9 parameters ----------------------------------------------------- |
| 167 | 242 #pragma udata bank9=0x900 |
| 116 | 243 |
| 163 | 244 static char md_state[48]; // DONT MOVE !! // has to be at the beginning of bank 9 for the asm code!!! |
| 116 | 245 |
| 164 | 246 // internal, dbg: |
| 167 | 247 static unsigned char DBG_char_I_deco_model; // new in v.108. |
| 164 | 248 static unsigned char DBG_char_I_depth_last_deco; // new in v.108 |
| 249 static float DBG_pres_surface; // new in v.108 | |
| 250 static float DBG_GF_low; // new in v.108 | |
| 251 static float DBG_GF_high; // new in v.108 | |
| 252 static float DBG_const_ppO2; // new in v.108 | |
| 253 static float DBG_deco_ppO2_change; // new in v.108 | |
| 254 static float DBG_deco_ppO2; // new in v.108 | |
| 255 static float DBG_deco_N2_ratio; // new in v.108 | |
| 256 static float DBG_deco_He_ratio; // new in v.108 | |
| 257 static float DBG_deco_gas_change; // new in v.108 | |
| 258 static float DBG_float_saturation_multiplier; // new in v.108 | |
| 259 static float DBG_float_desaturation_multiplier; // new in v.108 | |
| 260 static float DBG_float_deco_distance; // new in v.108 | |
| 261 static float DBG_deco_N2_ratio; // new in v.108 | |
| 262 static float DBG_deco_He_ratio; // new in v.108 | |
| 263 static float DBG_N2_ratio; // new in v.108 | |
| 264 static float DBG_He_ratio; // new in v.108 | |
| 265 | |
| 167 | 266 ////////////////////////////////////////////////////////////////////////////// |
| 267 ////////////////////////////////////////////////////////////////////////////// | |
| 268 ///////////////////////////// THE LOOKUP TABLES ////////////////////////////// | |
| 269 ////////////////////////////////////////////////////////////////////////////// | |
| 270 ////////////////////////////////////////////////////////////////////////////// | |
| 271 // | |
| 272 // End of PROM code is 17F00, So push tables on PROM top... | |
| 273 // | |
| 274 #pragma romdata buhlmann_tables = 0x017B00 // Needs to be in UPPER bank. | |
| 275 #include "p2_tables.romdata" // new table for deco_main_v.101 (var_N2_a modified) | |
| 116 | 276 |
| 167 | 277 // Magic table to compute the MD2 HASH |
| 278 // | |
| 279 #pragma romdata hash_tables = 0x017E00 // Address fixed by ASM access... | |
| 116 | 280 rom const rom unsigned int md_pi[] = |
| 281 { | |
| 282 0x292E, 0x43C9, 0xA2D8, 0x7C01, 0x3D36, 0x54A1, 0xECF0, 0x0613 | |
| 283 , 0x62A7, 0x05F3, 0xC0C7, 0x738C, 0x9893, 0x2BD9, 0xBC4C, 0x82CA | |
| 284 , 0x1E9B, 0x573C, 0xFDD4, 0xE016, 0x6742, 0x6F18, 0x8A17, 0xE512 | |
| 285 , 0xBE4E, 0xC4D6, 0xDA9E, 0xDE49, 0xA0FB, 0xF58E, 0xBB2F, 0xEE7A | |
| 286 , 0xA968, 0x7991, 0x15B2, 0x073F, 0x94C2, 0x1089, 0x0B22, 0x5F21 | |
| 287 , 0x807F, 0x5D9A, 0x5A90, 0x3227, 0x353E, 0xCCE7, 0xBFF7, 0x9703 | |
| 288 , 0xFF19, 0x30B3, 0x48A5, 0xB5D1, 0xD75E, 0x922A, 0xAC56, 0xAAC6 | |
| 289 , 0x4FB8, 0x38D2, 0x96A4, 0x7DB6, 0x76FC, 0x6BE2, 0x9C74, 0x04F1 | |
| 290 , 0x459D, 0x7059, 0x6471, 0x8720, 0x865B, 0xCF65, 0xE62D, 0xA802 | |
| 291 , 0x1B60, 0x25AD, 0xAEB0, 0xB9F6, 0x1C46, 0x6169, 0x3440, 0x7E0F | |
| 292 , 0x5547, 0xA323, 0xDD51, 0xAF3A, 0xC35C, 0xF9CE, 0xBAC5, 0xEA26 | |
| 293 , 0x2C53, 0x0D6E, 0x8528, 0x8409, 0xD3DF, 0xCDF4, 0x4181, 0x4D52 | |
| 294 , 0x6ADC, 0x37C8, 0x6CC1, 0xABFA, 0x24E1, 0x7B08, 0x0CBD, 0xB14A | |
| 295 , 0x7888, 0x958B, 0xE363, 0xE86D, 0xE9CB, 0xD5FE, 0x3B00, 0x1D39 | |
| 296 , 0xF2EF, 0xB70E, 0x6658, 0xD0E4, 0xA677, 0x72F8, 0xEB75, 0x4B0A | |
| 297 , 0x3144, 0x50B4, 0x8FED, 0x1F1A, 0xDB99, 0x8D33, 0x9F11, 0x8314 | |
| 298 }; | |
| 299 | |
| 167 | 300 ////////////////////////////////////////////////////////////////////////////// |
| 301 ////////////////////////////////////////////////////////////////////////////// | |
| 302 ////////////////////////////// THE SUBROUTINES /////////////////////////////// | |
| 303 ////////////////////////////////////////////////////////////////////////////// | |
| 304 ////////////////////////////////////////////////////////////////////////////// | |
| 305 // | |
| 116 | 306 // all new in v.102 |
| 307 // moved from 0x0D000 to 0x0C000 in v.108 | |
| 308 | |
| 309 #pragma code p2_deco = 0x0C000 | |
| 310 | |
| 167 | 311 ////////////////////////////////////////////////////////////////////////////// |
| 312 // DBS - debug on start of dive | |
| 313 // | |
| 314 static void create_dbs_set_dbg_and_ndl20mtr(void) | |
| 116 | 315 { |
| 167 | 316 overlay char i; // Local loop index. |
| 317 | |
| 318 //---- Reset DEBUG bit fields -------------------------------------------- | |
| 116 | 319 int_O_DBS_bitfield = 0; |
| 320 int_O_DBS2_bitfield = 0; | |
| 321 if(int_O_DBG_pre_bitfield & DBG_RUN) | |
| 322 int_O_DBG_pre_bitfield = DBG_RESTART; | |
| 323 else | |
| 324 int_O_DBG_pre_bitfield = DBG_RUN; | |
| 325 int_O_DBG_post_bitfield = 0; | |
| 167 | 326 |
| 327 //---- Set 20meters ND limit --------------------------------------------- | |
| 116 | 328 char_O_NDL_at_20mtr = 255; |
| 329 | |
| 167 | 330 //---- Copy all dive parameters ------------------------------------------ |
| 116 | 331 DBG_N2_ratio = N2_ratio; |
| 332 DBG_He_ratio = He_ratio; | |
| 333 DBG_char_I_deco_model = char_I_deco_model; | |
| 334 DBG_char_I_depth_last_deco = char_I_depth_last_deco; | |
| 335 DBG_pres_surface = pres_surface; | |
| 336 DBG_GF_low = GF_low; | |
| 337 DBG_GF_high = GF_high; | |
| 338 DBG_const_ppO2 = const_ppO2; | |
| 339 DBG_deco_ppO2_change = deco_ppO2_change; | |
| 340 DBG_deco_ppO2 = deco_ppO2; | |
| 167 | 341 DBG_deco_N2_ratio = deco_N2_ratio1; |
| 342 DBG_deco_He_ratio = deco_He_ratio1; | |
| 343 DBG_deco_gas_change = deco_gas_change1; | |
| 116 | 344 DBG_float_saturation_multiplier = float_saturation_multiplier; |
| 345 DBG_float_desaturation_multiplier = float_desaturation_multiplier; | |
| 346 DBG_float_deco_distance = float_deco_distance; | |
| 347 | |
| 167 | 348 //---- Setup some error (?) conditions ----------------------------------- |
| 116 | 349 if(char_I_deco_model) |
| 350 int_O_DBS_bitfield |= DBS_mode; | |
| 351 if(const_ppO2) | |
| 352 int_O_DBS_bitfield |= DBS_ppO2; | |
| 167 | 353 for(i = 16; i < 32; i++) |
| 354 if(pres_tissue[i]) | |
| 116 | 355 int_O_DBS_bitfield |= DBS_HE_sat; |
| 356 if(deco_ppO2_change) | |
| 357 int_O_DBS_bitfield |= DBS_ppO2chg; | |
| 358 if(float_saturation_multiplier < 0.99) | |
| 359 int_O_DBS_bitfield |= DBS_SAT2l; | |
| 360 if(float_saturation_multiplier > 1.3) | |
| 361 int_O_DBS_bitfield |= DBS_SAT2h; | |
| 362 if(GF_low < 0.19) | |
| 363 int_O_DBS_bitfield |= DBS_GFLOW2l; | |
| 364 if(GF_low > 1.01) | |
| 365 int_O_DBS_bitfield |= DBS_GFLOW2h; | |
| 366 if(GF_high < 0.6) | |
| 367 int_O_DBS_bitfield |= DBS_GFHGH2l; | |
| 368 if(GF_high > 1.01) | |
| 369 int_O_DBS_bitfield |= DBS_GFHGH2h; | |
| 370 if((N2_ratio + He_ratio) > 0.95) | |
| 371 int_O_DBS_bitfield |= DBS_GASO22l; | |
| 372 if((N2_ratio + He_ratio) < 0.05) | |
| 373 int_O_DBS_bitfield |= DBS_GASO22h; | |
| 374 if(float_deco_distance > 0.25) | |
| 375 int_O_DBS_bitfield |= DBS_DIST2h; | |
| 376 if(char_I_depth_last_deco > 8) | |
| 377 int_O_DBS_bitfield |= DBS_LAST2h; | |
| 167 | 378 if(DBG_deco_gas_change && ((deco_N2_ratio1 + deco_He_ratio1) > 0.95)) |
| 116 | 379 int_O_DBS_bitfield |= DBS_DECOO2l; |
| 167 | 380 if(DBG_deco_gas_change && ((deco_N2_ratio1 + deco_He_ratio1) < 0.05)) |
| 116 | 381 int_O_DBS_bitfield |= DBS_DECOO2h; |
| 382 if(pres_respiration > 3.0) | |
| 383 int_O_DBS2_bitfield |= DBS2_PRES2h; | |
| 384 if(pres_surface - pres_respiration > 0.2) | |
| 385 int_O_DBS2_bitfield |= DBS2_PRES2l; | |
| 386 if(pres_surface < 0.75) | |
| 387 int_O_DBS2_bitfield |= DBS2_SURF2l; | |
| 388 if(pres_surface > 1.11) | |
| 389 int_O_DBS2_bitfield |= DBS2_SURF2h; | |
| 390 if(float_desaturation_multiplier < 0.70) | |
| 391 int_O_DBS2_bitfield |= DBS2_DESAT2l; | |
| 392 if(float_desaturation_multiplier > 1.01) | |
| 393 int_O_DBS2_bitfield |= DBS2_DESAT2h; | |
| 394 if(GF_low > GF_high) | |
| 395 int_O_DBS2_bitfield |= DBS2_GFDneg; | |
| 396 } | |
| 397 | |
| 167 | 398 ////////////////////////////////////////////////////////////////////////////// |
| 399 // DBG - set DBG to end_of_dive | |
| 400 // | |
| 401 static void set_dbg_end_of_dive(void) | |
| 116 | 402 { |
| 403 int_O_DBG_pre_bitfield &= (~DBG_RUN); | |
| 404 int_O_DBG_post_bitfield &= (~DBG_RUN); | |
| 405 } | |
| 406 | |
| 167 | 407 ////////////////////////////////////////////////////////////////////////////// |
| 408 // DBG - NDL at first 20 m. hit | |
| 409 // | |
| 410 static void check_ndl(void) | |
| 116 | 411 { |
| 167 | 412 if( char_O_NDL_at_20mtr == 255 // Still in NDL mode ? |
| 413 && int_I_pres_respiration > 3000 // And we hit the 20m limit ? | |
| 414 ) | |
| 116 | 415 { |
| 167 | 416 char_O_NDL_at_20mtr = char_O_nullzeit; // change to max bottom time. |
| 417 if( char_O_NDL_at_20mtr == 255) // and avoid confusion. | |
| 116 | 418 char_O_NDL_at_20mtr == 254; |
| 419 } | |
| 420 } | |
| 421 | |
| 167 | 422 ////////////////////////////////////////////////////////////////////////////// |
| 423 // DBG - multi main during dive | |
| 424 // | |
| 425 static void check_dbg(static char is_post_check) | |
| 116 | 426 { |
| 167 | 427 overlay unsigned int temp_DBS = 0; |
| 428 overlay char i; // Local loop index. | |
| 429 | |
| 116 | 430 if( (DBG_N2_ratio != N2_ratio) || (DBG_He_ratio != He_ratio) ) |
| 431 temp_DBS |= DBG_c_gas; | |
| 432 if(DBG_const_ppO2 != const_ppO2) | |
| 433 temp_DBS |= DBG_c_ppO2; | |
| 167 | 434 if( DBG_float_saturation_multiplier != float_saturation_multiplier |
| 435 || DBG_float_desaturation_multiplier != float_desaturation_multiplier | |
| 436 ) | |
| 116 | 437 temp_DBS |= DBG_CdeSAT; |
| 438 if(DBG_char_I_deco_model != char_I_deco_model) | |
| 439 temp_DBS |= DBG_C_MODE; | |
| 440 if(DBG_pres_surface != pres_surface) | |
| 441 temp_DBS |= DBG_C_SURF; | |
| 167 | 442 |
| 443 if( !DBS_HE_sat && !He_ratio) | |
| 444 for(i = 16; i < 32; i++) | |
| 445 if(pres_tissue[i]) | |
| 116 | 446 temp_DBS |= DBG_HEwoHE; |
| 167 | 447 |
| 116 | 448 if(DBG_deco_ppO2 != deco_ppO2) |
| 449 temp_DBS |= DBG_C_DPPO2; | |
| 167 | 450 |
| 451 if( DBG_deco_gas_change != deco_gas_change1 | |
| 452 || DBG_deco_N2_ratio != deco_N2_ratio1 | |
| 453 || DBG_deco_He_ratio != deco_He_ratio1 ) | |
| 116 | 454 temp_DBS |= DBG_C_DGAS; |
| 167 | 455 |
| 116 | 456 if(DBG_float_deco_distance != float_deco_distance) |
| 457 temp_DBS |= DBG_C_DIST; | |
| 458 if(DBG_char_I_depth_last_deco != char_I_depth_last_deco) | |
| 459 temp_DBS |= DBG_C_LAST; | |
| 167 | 460 if( DBG_GF_low != GF_low |
| 461 || DBG_GF_high != GF_high ) | |
| 116 | 462 temp_DBS |= DBG_C_GF; |
| 463 if(pres_respiration > 13.0) | |
| 464 temp_DBS |= DBG_PHIGH; | |
| 465 if(pres_surface - pres_respiration > 0.2) | |
| 466 temp_DBS |= DBG_PLOW; | |
| 467 if(is_post_check) | |
| 468 int_O_DBG_post_bitfield |= temp_DBS; | |
| 469 else | |
| 470 int_O_DBG_pre_bitfield |= temp_DBS; | |
| 471 } | |
| 472 | |
| 167 | 473 ////////////////////////////////////////////////////////////////////////////// |
| 474 // DBG - prior to calc. of dive | |
| 475 // | |
| 476 static void check_pre_dbg(void) | |
| 116 | 477 { |
| 478 check_dbg(0); | |
| 479 } | |
| 480 | |
| 167 | 481 ////////////////////////////////////////////////////////////////////////////// |
| 482 // DBG - after decocalc of dive | |
| 483 // | |
| 484 static void check_post_dbg(void) | |
| 116 | 485 { |
| 486 check_dbg(1); | |
| 487 } | |
| 488 | |
| 165 | 489 ////////////////////////////////////////////////////////////////////////////// |
| 167 | 490 ////////////////////////////////////////////////////////////////////////////// |
| 491 /////////////////////// U T I L I T I E S ///////////////////////////////// | |
| 492 ////////////////////////////////////////////////////////////////////////////// | |
| 493 ////////////////////////////////////////////////////////////////////////////// | |
| 494 | |
| 495 static int read_custom_function(static unsigned char cf) | |
| 496 { | |
| 497 extern unsigned char hi, lo; | |
| 498 extern void getcustom15(); | |
| 499 _asm | |
| 500 movff cf,WREG | |
| 501 call getcustom15,0 | |
| 502 movff lo,PRODL | |
| 503 movff hi,PRODH | |
| 504 _endasm | |
| 505 } | |
| 506 | |
| 507 ////////////////////////////////////////////////////////////////////////////// | |
| 165 | 508 // read buhlmann tables for compatriment ci |
| 167 | 509 // If period == 0 : 2sec interval |
| 510 // 1 : 1 min interval | |
| 511 // 2 : 10 min interval. | |
| 512 static void read_buhlmann_coeffifients(static char period) | |
| 165 | 513 { |
| 167 | 514 // Note: we don't use far rom pointer, because the |
| 515 // 24 bits is to complex, hence we have to set | |
| 516 // the UPPER page ourself... | |
| 517 // --> Set zero if tables are moved to lower pages ! | |
| 518 _asm | |
| 519 movlw 1 | |
| 520 movwf TBLPTRU,0 | |
| 521 _endasm | |
| 522 | |
| 165 | 523 var_N2_a = buhlmann_a[ci]; |
| 524 var_N2_b = buhlmann_b[ci]; | |
| 167 | 525 var_He_a = (buhlmann_a+16)[ci]; |
| 526 var_He_b = (buhlmann_b+16)[ci]; | |
| 527 | |
| 165 | 528 // Check reading consistency: |
| 529 if( (var_N2_a < 0.231) | |
| 530 || (var_N2_a > 1.27) | |
| 531 || (var_N2_b < 0.504) | |
| 532 || (var_N2_b > 0.966) | |
| 533 || (var_He_a < 0.510) | |
| 534 || (var_He_a > 1.75) | |
| 535 || (var_He_b < 0.423) | |
| 536 || (var_He_b > 0.927) | |
| 537 ) | |
| 538 int_O_DBG_pre_bitfield |= DBG_ZH16ERR; | |
| 167 | 539 |
| 165 | 540 // Integration intervals. |
| 167 | 541 switch(period) |
| 165 | 542 { |
| 167 | 543 case -1://---- no interval ----------------------------------------------- |
| 544 var_N2_e = var_He_e = 0.0; | |
| 545 break; | |
| 546 | |
| 165 | 547 case 0: //---- 2 sec ----------------------------------------------------- |
| 548 var_N2_e = e2secs[ci]; | |
| 167 | 549 var_He_e = (e2secs+16)[ci]; |
| 165 | 550 |
| 551 // Check reading consistency: | |
| 552 if( (var_N2_e < 0.0000363) | |
| 553 || (var_N2_e > 0.00577) | |
| 554 || (var_He_e < 0.0000961) | |
| 555 || (var_He_e > 0.150) | |
| 556 ) | |
| 557 int_O_DBG_pre_bitfield |= DBG_ZH16ERR; | |
| 558 | |
| 559 break; | |
| 560 | |
| 561 case 1: //---- 1 min ----------------------------------------------------- | |
| 562 var_N2_e = e1min[ci]; | |
| 167 | 563 var_He_e = (e1min+16)[ci]; |
| 165 | 564 |
| 565 // Check reading consistency: | |
| 566 if( (var_N2_e < 1.09E-3) | |
| 567 || (var_N2_e > 0.1592) | |
| 568 || (var_He_e < 0.00288) | |
| 569 || (var_He_e > 0.3682) | |
| 570 ) | |
| 571 int_O_DBG_pre_bitfield |= DBG_ZH16ERR; | |
| 572 | |
| 573 break; | |
| 574 | |
| 575 case 2: //---- 10 min ---------------------------------------------------- | |
| 576 var_N2_e = e10min[ci]; | |
| 167 | 577 var_He_e = (e10min+16)[ci]; |
| 165 | 578 |
| 579 // Check reading consistency: | |
| 580 if( (var_N2_e < 0.01085) | |
| 581 || (var_N2_e > 0.82323) | |
| 582 || (var_He_e < 0.02846) | |
| 583 || (var_He_e > 0.98986) | |
| 584 ) | |
| 585 int_O_DBG_pre_bitfield |= DBG_ZH16ERR; | |
| 586 | |
| 587 break; | |
| 588 } | |
| 589 } | |
| 590 | |
| 591 ////////////////////////////////////////////////////////////////////////////// | |
| 167 | 592 // calc_next_decodepth_GF |
| 165 | 593 // |
| 116 | 594 // new in v.102 |
| 165 | 595 // |
| 116 | 596 // INPUT, changing during dive: |
| 167 | 597 // temp_pres_gtissue_limit_GF_low |
| 598 // temp_pres_gtissue_limit_GF_low_below_surface | |
| 599 // temp_pres_gtissue | |
| 600 // temp_pres_gtissue_diff | |
| 601 // lock_GF_depth_list | |
| 602 // | |
| 116 | 603 // INPUT, fixed during dive: |
| 167 | 604 // pres_surface |
| 605 // GF_delta | |
| 606 // GF_high | |
| 607 // GF_low | |
| 608 // temp_depth_last_deco | |
| 609 // float_deco_distance | |
| 610 // | |
| 116 | 611 // OUTPUT |
| 167 | 612 // GF_step |
| 613 // temp_deco | |
| 614 // temp_depth_limt | |
| 615 // lock_GF_depth_list | |
| 616 // | |
| 617 static void calc_nextdecodepth_GF(void) | |
| 618 { | |
| 116 | 619 |
| 620 char_I_table_deco_done[0] = 0; // safety if changed somewhere else. Needed for exit | |
| 167 | 621 |
| 622 //---- ZH-L16 + Gradient factor model ------------------------------------ | |
| 116 | 623 if (char_I_deco_model == 1) |
| 624 { | |
| 167 | 625 overlay float next_stop; // Next stop to test, in Bar. |
| 626 overlay float press_tol; // Upper limit (lower pressure) tolerated. | |
| 627 overlay int int_temp; | |
| 628 overlay unsigned char temp_depth_GF_low_number; | |
| 629 overlay float temp_pres_deco_GF_low; | |
| 630 | |
| 116 | 631 if (lock_GF_depth_list == 0) |
| 632 { | |
| 167 | 633 next_stop = temp_pres_gtissue_limit_GF_low_below_surface / 0.29985; // = ... / 99.95 / 0.003; |
| 634 int_temp = (int) (next_stop + 0.99); | |
| 116 | 635 if (int_temp > 31) |
| 636 int_temp = 31; // deepest deco at 93 meter (31 deco stops) | |
| 637 if (int_temp < 0) | |
| 638 int_temp = 0; | |
| 639 temp_depth_GF_low_number = int_temp; | |
| 640 temp_depth_GF_low_meter = 3 * temp_depth_GF_low_number; | |
| 167 | 641 next_stop = (float)temp_depth_GF_low_meter * 0.09995; |
| 642 temp_pres_deco_GF_low = next_stop + float_deco_distance + pres_surface; | |
| 116 | 643 if (temp_depth_GF_low_number == 0) |
| 644 GF_step = 0; | |
| 645 else | |
| 646 GF_step = GF_delta / (float)temp_depth_GF_low_number; | |
| 647 if (GF_step < 0) | |
| 648 GF_step = 0; | |
| 649 if (GF_step > GF_delta) | |
| 650 GF_step = GF_delta; | |
| 651 int_O_GF_step = (int)(GF_step * 10000); | |
| 652 int_O_limit_GF_low = (int)(temp_pres_deco_GF_low * 1000); | |
| 653 int_O_gtissue_press_at_GF_low = (int)(temp_pres_gtissue * 1000); | |
| 654 char_O_GF_low_pointer = temp_depth_GF_low_number; | |
| 655 lock_GF_depth_list = 1; | |
| 656 internal_deco_pointer = 0; | |
| 657 } | |
| 658 if (internal_deco_pointer == 0) // new run | |
| 659 { | |
| 660 internal_deco_pointer = temp_depth_GF_low_number; | |
| 661 GF_temp = GF_high - ((float)internal_deco_pointer * GF_step); | |
| 662 int_temp = char_I_table_deco_done[internal_deco_pointer]; | |
| 663 output[8] = int_temp; | |
| 664 output[9] = 33; | |
| 665 } | |
| 666 else | |
| 667 { | |
| 668 int_temp = 1; | |
| 669 } | |
| 670 while (int_temp == 1) | |
| 671 { | |
| 672 int_temp = internal_deco_pointer - 1; | |
| 673 if (int_temp == 1) // new in v104 | |
| 674 { | |
| 167 | 675 next_stop = (float)(temp_depth_last_deco * int_temp) * 0.09995; |
| 116 | 676 GF_step2 = GF_step/3.0 * ((float)(6 - temp_depth_last_deco)); |
| 677 } | |
| 678 else | |
| 679 if (int_temp == 0) | |
| 680 { | |
| 167 | 681 next_stop = 0.0; |
| 116 | 682 GF_step2 = GF_high - GF_temp; |
| 683 } | |
| 684 else | |
| 685 { | |
| 167 | 686 next_stop = (float)(3 *int_temp) * 0.09995; |
| 116 | 687 GF_step2 = GF_step; |
| 688 } | |
| 167 | 689 next_stop = next_stop + pres_surface; // next deco stop to be tested |
| 690 press_tol = ((GF_temp + GF_step2)* temp_pres_gtissue_diff) + temp_pres_gtissue; // upper limit (lowest pressure allowed) // changes GF_step2 in v104 | |
| 691 if (press_tol > next_stop) // check if ascent to next deco stop is ok | |
| 116 | 692 { |
| 693 int_temp = 0; // no | |
| 694 } | |
| 695 else | |
| 696 { | |
| 697 internal_deco_pointer = int_temp; | |
| 698 GF_temp = GF_temp + GF_step2; // changed in v104 | |
| 699 int_temp = char_I_table_deco_done[internal_deco_pointer]; // yes and check for ascent to even next stop if deco_done is set | |
| 700 } | |
| 701 } // while | |
| 167 | 702 |
| 116 | 703 if (internal_deco_pointer > 0) |
| 704 { | |
| 167 | 705 next_stop = 0.29985 * internal_deco_pointer; |
| 706 temp_deco = next_stop + float_deco_distance + pres_surface; | |
| 116 | 707 if (internal_deco_pointer == 1) // new in v104 |
| 708 temp_depth_limit = temp_depth_last_deco; | |
| 709 else | |
| 710 temp_depth_limit = 3 * internal_deco_pointer; | |
| 711 if (output[9] == 33) | |
| 712 { | |
| 713 output[9] = internal_deco_pointer; | |
| 714 output[10] = char_I_table_deco_done[internal_deco_pointer]; | |
| 715 output[12] = output[12] + 1; | |
| 716 if (output[12] == 100) | |
| 717 output[12] = 0; | |
| 718 } | |
| 719 } | |
| 720 else // if (char_I_deco_model == 1) | |
| 721 { | |
| 722 temp_deco = pres_surface; | |
| 723 temp_depth_limit = 0; | |
| 724 } | |
| 725 } | |
| 167 | 726 else //---- ZH-L16 model ------------------------------------------------- |
| 116 | 727 { |
| 728 // calc_nextdecodepth - original | |
| 729 // optimized in v.101 | |
| 730 // depth_last_deco included in v.101 | |
| 731 | |
| 167 | 732 overlay float pres_gradient = temp_pres_gtissue_limit - pres_surface; |
| 733 if (pres_gradient >= 0) | |
| 116 | 734 { |
| 167 | 735 pres_gradient = pres_gradient / 0.29985; // = pres_gradient / 99.95 / 0.003; |
| 736 temp_depth_limit = (int) (pres_gradient + 0.99); | |
| 737 temp_depth_limit = 3 * temp_depth_limit; // depth for deco [m] | |
| 116 | 738 if (temp_depth_limit == 0) |
| 739 temp_deco = pres_surface; | |
| 740 else | |
| 741 { | |
| 742 if (temp_depth_limit < temp_depth_last_deco) | |
| 743 temp_depth_limit = temp_depth_last_deco; | |
| 167 | 744 pres_gradient = (float)temp_depth_limit * 0.09995; |
| 745 temp_deco = pres_gradient + float_deco_distance + pres_surface; // depth for deco [bar] | |
| 116 | 746 } // if (temp_depth_limit == 0) |
| 167 | 747 } // if (pres_gradient >= 0) |
| 116 | 748 else |
| 749 { | |
| 750 temp_deco = pres_surface; | |
| 751 temp_depth_limit = 0; | |
| 167 | 752 } // if (pres_gradient >= 0) |
| 116 | 753 } // calc_nextdecodepth original |
| 167 | 754 } |
| 116 | 755 |
| 167 | 756 ////////////////////////////////////////////////////////////////////////////// |
| 757 // copy_deco_table_GF | |
| 758 // | |
| 116 | 759 // new in v.102 |
| 167 | 760 // |
| 761 static void copy_deco_table_GF(void) | |
| 116 | 762 { |
| 167 | 763 overlay unsigned char x; |
| 116 | 764 |
| 167 | 765 if( char_I_deco_model == 1 ) |
| 766 { | |
| 767 for(x=0; x<32; x++) | |
| 768 char_O_deco_table[x] = internal_deco_table[x]; | |
| 769 } | |
| 770 } | |
| 116 | 771 |
| 167 | 772 ////////////////////////////////////////////////////////////////////////////// |
| 773 // clear_internal_deco_table_GF | |
| 774 // | |
| 116 | 775 // new in v.102 |
| 167 | 776 // |
| 777 static void clear_internal_deco_table_GF(void) | |
| 116 | 778 { |
| 779 if (char_I_deco_model == 1) | |
| 780 { | |
| 167 | 781 overlay unsigned char x; |
| 782 | |
| 783 for(x=0;x<32;x++) // cycle through the 16 tissues for N2 and He | |
| 784 internal_deco_table[x] = 0; | |
| 116 | 785 } |
| 167 | 786 } |
| 116 | 787 |
| 167 | 788 ////////////////////////////////////////////////////////////////////////////// |
| 789 // update_internal_deco_table_GF | |
| 790 // | |
| 116 | 791 // new in v.102 |
| 167 | 792 // |
| 793 // Add one minute to the current stop (if lower than 255). | |
| 794 // | |
| 795 static void update_internal_deco_table_GF(void) | |
| 116 | 796 { |
| 797 if ((char_I_deco_model == 1) && (internal_deco_table[internal_deco_pointer] < 255)) | |
| 167 | 798 internal_deco_table[internal_deco_pointer]++; |
| 799 } | |
| 116 | 800 |
| 167 | 801 ////////////////////////////////////////////////////////////////////////////// |
| 116 | 802 // temp_tissue_safety // |
| 167 | 803 // |
| 116 | 804 // outsourced in v.102 |
| 167 | 805 // |
| 806 // Apply safety factors for brand ZH-L16 model. | |
| 807 // | |
| 808 static void temp_tissue_safety(void) | |
| 116 | 809 { |
| 167 | 810 if( char_I_deco_model == 0 ) |
| 116 | 811 { |
| 812 if (temp_tissue < 0.0) | |
| 126 | 813 temp_tissue *= float_desaturation_multiplier; |
| 116 | 814 else |
| 126 | 815 temp_tissue *= float_saturation_multiplier; |
| 116 | 816 } |
| 167 | 817 } |
| 116 | 818 |
| 167 | 819 ////////////////////////////////////////////////////////////////////////////// |
| 820 ////////////////////////////////////////////////////////////////////////////// | |
| 116 | 821 // ** THE JUMP-IN CODE ** |
| 822 // ** for the asm code ** | |
| 167 | 823 ////////////////////////////////////////////////////////////////////////////// |
| 824 ////////////////////////////////////////////////////////////////////////////// | |
|
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825 |
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826 void fillDataStack(void) |
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827 { |
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828 _asm |
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829 LFSR 1,C_STACK |
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830 MOVLW 0xCC |
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831 loop: MOVWF POSTINC1,0 |
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832 TSTFSZ FSR1L,0 |
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833 BRA loop |
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834 |
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835 LFSR 1,C_STACK |
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836 LFSR 2,C_STACK |
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837 _endasm |
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838 } |
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839 |
| 167 | 840 ////////////////////////////////////////////////////////////////////////////// |
|
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841 // When calling C code from ASM context, the data stack pointer and |
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842 // frames should be reset. Bank3 is dedicated to the stack (see the |
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843 // .lkr script). |
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844 #ifdef __DEBUG |
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845 # define RESET_C_STACK fillDataStack(); |
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846 #else |
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847 # define RESET_C_STACK \ |
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848 _asm \ |
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849 LFSR 1, C_STACK \ |
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850 LFSR 2, C_STACK \ |
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851 _endasm |
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852 #endif |
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853 |
| 167 | 854 ////////////////////////////////////////////////////////////////////////////// |
| 855 | |
| 116 | 856 void deco_calc_hauptroutine(void) |
| 857 { | |
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858 RESET_C_STACK |
| 116 | 859 calc_hauptroutine(); |
| 860 int_O_desaturation_time = 65535; | |
| 861 } | |
| 862 | |
| 167 | 863 ////////////////////////////////////////////////////////////////////////////// |
| 864 | |
| 116 | 865 void deco_calc_without_deco(void) |
| 866 { | |
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867 RESET_C_STACK |
| 116 | 868 calc_without_deco(); |
| 869 deco_calc_desaturation_time(); | |
| 870 } | |
| 871 | |
| 167 | 872 ////////////////////////////////////////////////////////////////////////////// |
| 873 | |
| 116 | 874 void deco_clear_tissue(void) |
| 875 { | |
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876 RESET_C_STACK |
| 116 | 877 clear_tissue(); |
| 878 char_I_depth_last_deco = 0; // for compatibility with v.101pre_no_last_deco | |
| 879 } | |
| 880 | |
| 167 | 881 ////////////////////////////////////////////////////////////////////////////// |
| 882 | |
| 116 | 883 void deco_calc_wo_deco_step_1_min(void) |
| 884 { | |
|
122
3003a8040b78
FIX again reset C data stack and frame pointer when entering C code.
JeanDo
parents:
116
diff
changeset
|
885 RESET_C_STACK |
| 116 | 886 calc_wo_deco_step_1_min(); |
| 887 char_O_deco_status = 3; // surface new in v.102 overwrites value of calc_wo_deco_step_1_min | |
| 888 deco_calc_desaturation_time(); | |
| 889 } | |
| 890 | |
| 167 | 891 ////////////////////////////////////////////////////////////////////////////// |
| 892 | |
| 116 | 893 void deco_debug(void) |
| 894 { | |
|
122
3003a8040b78
FIX again reset C data stack and frame pointer when entering C code.
JeanDo
parents:
116
diff
changeset
|
895 RESET_C_STACK |
| 116 | 896 } |
| 897 | |
| 167 | 898 ////////////////////////////////////////////////////////////////////////////// |
| 899 // clear_tissue | |
| 900 // | |
| 165 | 901 // optimized in v.101 (var_N2_a) |
| 167 | 902 // |
| 903 // preload tissues with standard pressure for the given ambient pressure. | |
| 904 // Note: fixed N2_ratio for standard air. | |
| 116 | 905 |
| 167 | 906 static void clear_tissue(void) |
| 116 | 907 { |
| 908 flag_in_divemode = 0; | |
| 909 int_O_DBS_bitfield = 0; | |
| 910 int_O_DBS2_bitfield = 0; | |
| 911 int_O_DBG_pre_bitfield = 0; | |
| 912 int_O_DBG_post_bitfield = 0; | |
| 913 char_O_NDL_at_20mtr = 255; | |
| 914 | |
| 167 | 915 // Kludge: the 0.0002 of 0.7902 are missing with standard air. |
| 916 N2_ratio = 0.7902; | |
| 126 | 917 pres_respiration = (float)int_I_pres_respiration / 1000.0; |
| 164 | 918 |
| 167 | 919 for(ci=0; ci<16; ci++) |
| 126 | 920 { |
| 164 | 921 // cycle through the 16 b"uhlmann tissues |
| 165 | 922 overlay float p = N2_ratio * (pres_respiration - 0.0627); |
| 164 | 923 pres_tissue[ci] = p; |
| 126 | 924 |
| 167 | 925 read_buhlmann_coeffifients(-1); |
| 165 | 926 |
| 927 p = (p - var_N2_a) * var_N2_b ; | |
| 164 | 928 if( p < 0.0 ) |
| 929 p = 0.0; | |
| 930 pres_tissue_limit[ci] = p; | |
| 931 | |
| 932 // cycle through the 16 b"uhlmann tissues for Helium | |
| 167 | 933 (pres_tissue+16)[ci] = 0.0; |
| 126 | 934 } // for 0 to 16 |
| 116 | 935 |
| 126 | 936 clear_decoarray(); |
| 937 char_O_deco_status = 0; | |
| 938 char_O_nullzeit = 0; | |
| 939 char_O_ascenttime = 0; | |
| 940 char_O_gradient_factor = 0; | |
| 941 char_O_relative_gradient_GF = 0; | |
| 167 | 942 } |
| 116 | 943 |
| 167 | 944 ////////////////////////////////////////////////////////////////////////////// |
| 945 // calc_without_deco | |
| 946 // | |
| 116 | 947 // optimized in v.101 (float_..saturation_multiplier) |
| 167 | 948 // |
| 949 // Note: fixed N2_ratio for standard air. | |
| 116 | 950 |
| 167 | 951 static void calc_without_deco(void) |
| 116 | 952 { |
| 167 | 953 N2_ratio = 0.7902; // Sum as stated in b"uhlmann |
| 126 | 954 pres_respiration = (float)int_I_pres_respiration / 1000.0; // assembler code uses different digit system |
| 955 pres_surface = (float)int_I_pres_surface / 1000.0; | |
| 956 temp_atem = N2_ratio * (pres_respiration - 0.0627); // 0.0627 is the extra pressure in the body | |
| 957 temp2_atem = 0.0; | |
| 958 temp_surface = pres_surface; // the b"uhlmann formula using temp_surface does apply to the pressure without any inert ratio | |
| 959 float_desaturation_multiplier = char_I_desaturation_multiplier / 100.0; | |
| 960 float_saturation_multiplier = char_I_saturation_multiplier / 100.0; | |
| 961 | |
| 167 | 962 calc_tissue_2_secs(); // update the pressure in the 32 tissues in accordance with the new ambient pressure |
| 126 | 963 |
| 964 clear_decoarray(); | |
| 965 char_O_deco_status = 0; | |
| 966 char_O_nullzeit = 0; | |
| 967 char_O_ascenttime = 0; | |
| 968 calc_gradient_factor(); | |
| 167 | 969 } |
| 116 | 970 |
| 167 | 971 ////////////////////////////////////////////////////////////////////////////// |
| 972 // calc_hauptroutine | |
| 973 // | |
| 974 // this is the major code in dive mode calculates: | |
| 116 | 975 // the tissues, |
| 167 | 976 // the bottom time, |
| 977 // and simulates the ascend with all deco stops. | |
| 116 | 978 |
| 167 | 979 static void calc_hauptroutine(void) |
| 116 | 980 { |
| 981 calc_hauptroutine_data_input(); | |
| 982 | |
| 983 if(!flag_in_divemode) | |
| 984 { | |
| 985 flag_in_divemode = 1; | |
| 986 create_dbs_set_dbg_and_ndl20mtr(); | |
| 987 } | |
| 988 else | |
| 989 check_pre_dbg(); | |
| 990 | |
| 991 calc_hauptroutine_update_tissues(); | |
| 992 calc_gradient_factor(); | |
| 993 | |
| 167 | 994 // toggle between calculation for nullzeit (bottom time), |
| 995 // deco stops | |
| 996 // and more deco stops (continue) | |
| 997 switch( char_O_deco_status ) | |
| 116 | 998 { |
| 167 | 999 case 0: //---- bottom time ----------------------------------------------- |
| 1000 update_startvalues(); | |
| 1001 calc_nullzeit(); | |
| 1002 check_ndl(); | |
| 1003 char_O_deco_status = 255; // calc deco next time | |
| 1004 break; | |
| 1005 | |
| 1006 case 1: //---- ???? ------------------------------------------------------ | |
| 1007 char_O_deco_status = 0; | |
| 1008 calc_hauptroutine_calc_deco(); | |
| 1009 break; | |
| 1010 | |
| 1011 case 3: //---- new dive -------------------------------------------------- | |
| 1012 clear_decoarray(); | |
| 1013 clear_internal_deco_table_GF(); | |
| 1014 copy_deco_table_GF(); | |
| 1015 internal_deco_pointer = 0; | |
| 1016 lock_GF_depth_list = 0; | |
| 1017 update_startvalues(); | |
| 1018 calc_nextdecodepth_GF(); | |
| 1019 char_O_deco_status = 0; | |
| 1020 break; | |
| 1021 | |
| 1022 default: //---- Continue stops calculation ------------------------------- | |
| 1023 update_startvalues(); | |
| 1024 clear_decoarray(); | |
| 1025 clear_internal_deco_table_GF(); | |
| 1026 output[6] = 1; | |
| 1027 calc_hauptroutine_calc_ascend_to_deco(); | |
| 1028 | |
| 1029 // can't go up to first deco, too deep to calculate in the given time slot | |
| 1030 if (char_O_deco_status > 15) | |
| 1031 char_O_deco_status = 2; | |
| 1032 else | |
| 1033 calc_hauptroutine_calc_deco(); | |
| 1034 break; | |
| 116 | 1035 } |
| 167 | 1036 |
| 116 | 1037 calc_ascenttime(); |
| 1038 check_post_dbg(); | |
| 1039 } | |
| 1040 | |
| 167 | 1041 ////////////////////////////////////////////////////////////////////////////// |
| 1042 // calc_hauptroutine_data_input | |
| 1043 // | |
| 1044 // Reset all C-code dive parameters from their ASM-code values. | |
| 1045 // Detect gas change condition. | |
| 1046 // | |
| 116 | 1047 void calc_hauptroutine_data_input(void) |
| 1048 { | |
| 167 | 1049 overlay int int_temp; |
| 126 | 1050 |
| 167 | 1051 pres_respiration = int_I_pres_respiration / 1000.0; |
| 1052 pres_surface = int_I_pres_surface / 1000.0; | |
| 1053 N2_ratio = char_I_N2_ratio / 100.0; | |
| 1054 He_ratio = char_I_He_ratio / 100.0; | |
| 1055 deco_N2_ratio1 = char_I_deco_N2_ratio1 / 100.0; | |
| 1056 deco_He_ratio1 = char_I_deco_He_ratio1 / 100.0; | |
| 1057 deco_N2_ratio2 = char_I_deco_N2_ratio2 / 100.0; | |
| 1058 deco_He_ratio2 = char_I_deco_He_ratio2 / 100.0; | |
| 1059 deco_N2_ratio3 = char_I_deco_N2_ratio3 / 100.0; | |
| 1060 deco_He_ratio3 = char_I_deco_He_ratio3 / 100.0; | |
| 1061 deco_N2_ratio4 = char_I_deco_N2_ratio4 / 100.0; | |
| 1062 deco_He_ratio4 = char_I_deco_He_ratio4 / 100.0; | |
| 1063 deco_N2_ratio5 = char_I_deco_N2_ratio5 / 100.0; | |
| 1064 deco_He_ratio5 = char_I_deco_He_ratio5 / 100.0; | |
| 1065 float_deco_distance = char_I_deco_distance / 100.0; | |
| 116 | 1066 |
| 126 | 1067 // ____________________________________________________ |
| 1068 // | |
| 1069 // _____________ G A S _ C H A N G E S ________________ | |
| 1070 // ____________________________________________________ | |
| 1071 | |
| 1072 int_temp = (int_I_pres_respiration - int_I_pres_surface) + MBAR_REACH_GASCHANGE_AUTO_CHANGE_OFF; | |
| 1073 | |
| 167 | 1074 deco_gas_change1 = 0; |
| 126 | 1075 deco_gas_change2 = 0; |
| 1076 deco_gas_change3 = 0; | |
| 1077 deco_gas_change4 = 0; | |
| 1078 deco_gas_change5 = 0; | |
| 116 | 1079 |
| 167 | 1080 if(char_I_deco_gas_change1) |
| 126 | 1081 { |
| 167 | 1082 overlay int int_temp2 = ((int)char_I_deco_gas_change1) * 100; |
| 126 | 1083 if(int_temp > int_temp2) |
| 1084 { | |
| 167 | 1085 deco_gas_change1 = (float)char_I_deco_gas_change1 / 9.995 + pres_surface; |
| 1086 deco_gas_change1 += float_deco_distance; | |
| 126 | 1087 } |
| 1088 } | |
| 1089 if(char_I_deco_gas_change2) | |
| 1090 { | |
| 167 | 1091 overlay int int_temp2 = ((int)char_I_deco_gas_change2) * 100; |
| 126 | 1092 if(int_temp > int_temp2) |
| 1093 { | |
| 1094 deco_gas_change2 = (float)char_I_deco_gas_change2 / 9.995 + pres_surface; | |
| 1095 deco_gas_change2 += float_deco_distance; | |
| 1096 } | |
| 1097 } | |
| 1098 if(char_I_deco_gas_change3) | |
| 1099 { | |
| 167 | 1100 overlay int int_temp2 = ((int)char_I_deco_gas_change3) * 100; |
| 126 | 1101 if(int_temp > int_temp2) |
| 1102 { | |
| 1103 deco_gas_change3 = (float)char_I_deco_gas_change3 / 9.995 + pres_surface; | |
| 1104 deco_gas_change3 += float_deco_distance; | |
| 1105 } | |
| 1106 } | |
| 1107 if(char_I_deco_gas_change4) | |
| 1108 { | |
| 167 | 1109 overlay int int_temp2 = ((int)char_I_deco_gas_change4) * 100; |
| 126 | 1110 if(int_temp > int_temp2) |
| 1111 { | |
| 1112 deco_gas_change4 = (float)char_I_deco_gas_change4 / 9.995 + pres_surface; | |
| 1113 deco_gas_change4 += float_deco_distance; | |
| 1114 } | |
| 1115 } | |
| 1116 if(char_I_deco_gas_change5) | |
| 1117 { | |
| 167 | 1118 overlay int int_temp2 = ((int)char_I_deco_gas_change5) * 100; |
| 126 | 1119 if(int_temp > int_temp2) |
| 1120 { | |
| 1121 deco_gas_change5 = (float)char_I_deco_gas_change5 / 9.995 + pres_surface; | |
| 1122 deco_gas_change5 += float_deco_distance; | |
| 1123 } | |
| 1124 } | |
| 116 | 1125 |
| 126 | 1126 const_ppO2 = (float)char_I_const_ppO2 / 100.0; |
| 1127 deco_ppO2_change = (float)char_I_deco_ppO2_change / 99.95 + pres_surface; | |
| 1128 deco_ppO2_change = deco_ppO2_change + float_deco_distance; | |
| 1129 deco_ppO2 = (float)char_I_deco_ppO2 / 100.0; | |
| 1130 float_desaturation_multiplier = char_I_desaturation_multiplier / 100.0; | |
| 1131 float_saturation_multiplier = char_I_saturation_multiplier / 100.0; | |
| 1132 GF_low = (float)char_I_GF_Low_percentage / 100.0; | |
| 1133 GF_high = (float)char_I_GF_High_percentage / 100.0; | |
| 1134 GF_delta = GF_high - GF_low; | |
| 1135 | |
| 1136 temp2 = (pres_respiration - pres_surface) / 0.29985; | |
| 1137 int_temp = (int)(temp2); | |
| 1138 if (int_temp < 0) | |
| 1139 int_temp = 0; | |
| 1140 if (int_temp > 255) | |
| 1141 int_temp = 255; | |
| 1142 char_O_actual_pointer = int_temp; | |
| 1143 | |
| 1144 temp_depth_last_deco = (int)char_I_depth_last_deco; | |
| 116 | 1145 } |
| 1146 | |
| 167 | 1147 ////////////////////////////////////////////////////////////////////////////// |
| 1148 | |
| 116 | 1149 void calc_hauptroutine_update_tissues(void) |
| 1150 { | |
| 1151 int_O_calc_tissue_call_counter = int_O_calc_tissue_call_counter + 1; | |
| 167 | 1152 if (char_I_const_ppO2 == 0) // new in v.101 |
| 1153 pres_diluent = pres_respiration; // new in v.101 | |
| 1154 else // new in v.101 | |
| 1155 pres_diluent = ((pres_respiration - const_ppO2)/(N2_ratio + He_ratio)); // new in v.101 | |
| 1156 if (pres_diluent > pres_respiration) // new in v.101 | |
| 1157 pres_diluent = pres_respiration; // new in v.101 | |
| 1158 if (pres_diluent > 0.0627) // new in v.101 | |
| 116 | 1159 { |
| 167 | 1160 temp_atem = N2_ratio * (pres_diluent - 0.0627); // changed in v.101 |
| 1161 temp2_atem = He_ratio * (pres_diluent - 0.0627); // changed in v.101 | |
| 116 | 1162 char_O_diluent = (char)(pres_diluent/pres_respiration*100.0); |
| 1163 } | |
| 167 | 1164 else // new in v.101 |
| 116 | 1165 { |
| 167 | 1166 temp_atem = 0.0; // new in v.101 |
| 1167 temp2_atem = 0.0; // new in v.101 | |
| 116 | 1168 char_O_diluent = 0; |
| 1169 } | |
| 1170 temp_surface = pres_surface; | |
| 1171 | |
| 1172 if(!char_I_step_is_1min) | |
| 167 | 1173 calc_tissue_2_secs(); |
| 116 | 1174 else |
| 167 | 1175 calc_tissue_1_min(); |
| 116 | 1176 |
| 1177 int_O_gtissue_limit = (int)(pres_tissue_limit[char_O_gtissue_no] * 1000); | |
| 1178 int_O_gtissue_press = (int)((pres_tissue[char_O_gtissue_no] + pres_tissue[char_O_gtissue_no+16]) * 1000); | |
| 1179 if (char_I_deco_model == 1) | |
| 1180 { | |
| 1181 temp1 = temp1 * GF_high; | |
| 1182 } | |
| 1183 else | |
| 1184 { | |
| 1185 temp1 = temp_surface; | |
| 1186 } | |
| 1187 if (pres_gtissue_limit > temp1 && char_O_deco_status == 0) // if guiding tissue can not be exposed to surface pressure immediately | |
| 1188 { | |
| 1189 char_O_nullzeit = 0; // deco necessary | |
| 1190 char_O_deco_status = 255; // calculate deco skip nullzeit calculation | |
| 1191 } | |
| 1192 } // calc_hauptroutine_update_tissues | |
| 1193 | |
| 167 | 1194 ////////////////////////////////////////////////////////////////////////////// |
| 1195 | |
| 116 | 1196 void calc_hauptroutine_calc_deco(void) |
| 1197 { | |
| 1198 do | |
| 1199 { | |
| 1200 int_temp_decostatus = 0; | |
| 1201 calc_nextdecodepth_GF(); | |
| 1202 if (temp_depth_limit > 0) | |
| 1203 { | |
| 1204 calc_N2_ratio = N2_ratio; | |
| 1205 calc_He_ratio = He_ratio; | |
| 1206 | |
| 1207 if (char_I_const_ppO2 == 0) // new in v.101 | |
| 1208 { | |
| 1209 deco_diluent = temp_deco; // new in v.101 | |
| 1210 | |
| 167 | 1211 if(deco_gas_change1 && (temp_deco < deco_gas_change1)) |
| 116 | 1212 { |
| 167 | 1213 calc_N2_ratio = deco_N2_ratio1; |
| 1214 calc_He_ratio = deco_He_ratio1; | |
| 116 | 1215 } |
| 1216 if(deco_gas_change2 && (temp_deco < deco_gas_change2)) | |
| 1217 { | |
| 1218 calc_N2_ratio = deco_N2_ratio2; | |
| 1219 calc_He_ratio = deco_He_ratio2; | |
| 1220 } | |
| 1221 if(deco_gas_change3 && (temp_deco < deco_gas_change3)) | |
| 1222 { | |
| 1223 calc_N2_ratio = deco_N2_ratio3; | |
| 1224 calc_He_ratio = deco_He_ratio3; | |
| 1225 } | |
| 1226 if(deco_gas_change4 && (temp_deco < deco_gas_change4)) | |
| 1227 { | |
| 1228 calc_N2_ratio = deco_N2_ratio4; | |
| 1229 calc_He_ratio = deco_He_ratio4; | |
| 1230 } | |
| 1231 if(deco_gas_change5 && (temp_deco < deco_gas_change5)) | |
| 1232 { | |
| 1233 calc_N2_ratio = deco_N2_ratio5; | |
| 1234 calc_He_ratio = deco_He_ratio5; | |
| 1235 } | |
| 1236 } | |
| 1237 else // new in v.101 | |
| 1238 { | |
| 1239 if (temp_deco > deco_ppO2_change) | |
| 1240 { | |
| 1241 deco_diluent = ((temp_deco - const_ppO2)/(N2_ratio + He_ratio)); // new in v.101 | |
| 1242 } | |
| 1243 else | |
| 1244 { | |
| 1245 deco_diluent = ((temp_deco - deco_ppO2)/(N2_ratio + He_ratio)); // new in v.101 | |
| 1246 } | |
| 1247 } | |
| 1248 if (deco_diluent > temp_deco) // new in v.101 | |
| 1249 deco_diluent = temp_deco; // new in v.101 | |
| 1250 if (deco_diluent > 0.0627) // new in v.101 | |
| 1251 { | |
| 1252 temp_atem = calc_N2_ratio * (deco_diluent - 0.0627); // changed in v.101 | |
| 1253 temp2_atem = calc_He_ratio * (deco_diluent - 0.0627); // changed in v.101 | |
| 1254 } | |
| 1255 else // new in v.101 | |
| 1256 { | |
| 1257 temp_atem = 0.0; // new in v.101 | |
| 1258 temp2_atem = 0.0; // new in v.101 | |
| 1259 } | |
| 1260 sim_tissue_1min(); | |
| 1261 update_internal_deco_table_GF(); | |
| 1262 temp_decotime = 1; | |
| 1263 update_decoarray(); | |
| 1264 char_O_deco_status = char_O_deco_status + 1; | |
| 1265 if (char_O_deco_status < 16) | |
| 1266 int_temp_decostatus = 1; | |
| 1267 } | |
| 1268 else // if (temp_depth_limit > 0) | |
| 1269 { | |
| 1270 char_O_deco_status = 0; | |
| 1271 } | |
| 1272 } while (int_temp_decostatus == 1); | |
| 167 | 1273 |
| 116 | 1274 if (char_O_deco_status > 15) |
| 1275 { | |
| 1276 char_O_deco_status = 1; | |
| 1277 } | |
| 1278 else | |
| 1279 { | |
| 1280 copy_deco_table_GF(); | |
| 1281 char_O_deco_status = 0; | |
| 1282 } | |
| 1283 } | |
| 1284 | |
| 167 | 1285 ////////////////////////////////////////////////////////////////////////////// |
| 1286 | |
| 116 | 1287 void calc_hauptroutine_calc_ascend_to_deco(void) |
| 1288 { | |
| 1289 update_startvalues(); | |
| 1290 char_O_deco_status = 0; | |
| 1291 temp_deco = pres_respiration; | |
| 1292 lock_GF_depth_list = 1; // new in v.102 | |
| 1293 do // go up to first deco | |
| 1294 { | |
| 1295 int_temp_decostatus = 0; | |
| 1296 temp_deco = temp_deco - 1.0; | |
| 1297 if ( char_I_deco_model == 1) // new in v.102 , 4 = deep stops | |
| 1298 temp_limit = temp_pres_gtissue_limit_GF_low; | |
| 1299 else | |
| 1300 temp_limit = temp_pres_gtissue_limit; | |
| 1301 if ((temp_deco > temp_limit) && (temp_deco > pres_surface)) // changes in v.102 | |
| 1302 { | |
| 1303 lock_GF_depth_list = 0; // new in v.102, distance to first stop > 10 mtr. | |
| 1304 output[6] = 0; | |
| 1305 temp_deco += 0.5; | |
| 1306 | |
| 1307 calc_N2_ratio = N2_ratio; | |
| 1308 calc_He_ratio = He_ratio; | |
| 1309 | |
| 1310 if (char_I_const_ppO2 == 0) // new in v.101 // calculate at half of the ascent | |
| 1311 { | |
| 1312 deco_diluent = temp_deco; // new in v.101 | |
| 1313 | |
| 167 | 1314 if(deco_gas_change1 && (temp_deco < deco_gas_change1)) |
| 116 | 1315 { |
| 167 | 1316 calc_N2_ratio = deco_N2_ratio1; |
| 1317 calc_He_ratio = deco_He_ratio1; | |
| 116 | 1318 } |
| 1319 if(deco_gas_change2 && (temp_deco < deco_gas_change2)) | |
| 1320 { | |
| 1321 calc_N2_ratio = deco_N2_ratio2; | |
| 1322 calc_He_ratio = deco_He_ratio2; | |
| 1323 } | |
| 1324 if(deco_gas_change3 && (temp_deco < deco_gas_change3)) | |
| 1325 { | |
| 1326 calc_N2_ratio = deco_N2_ratio3; | |
| 1327 calc_He_ratio = deco_He_ratio3; | |
| 1328 } | |
| 1329 if(deco_gas_change4 && (temp_deco < deco_gas_change4)) | |
| 1330 { | |
| 1331 calc_N2_ratio = deco_N2_ratio4; | |
| 1332 calc_He_ratio = deco_He_ratio4; | |
| 1333 } | |
| 1334 if(deco_gas_change5 && (temp_deco < deco_gas_change5)) | |
| 1335 { | |
| 1336 calc_N2_ratio = deco_N2_ratio5; | |
| 1337 calc_He_ratio = deco_He_ratio5; | |
| 1338 } | |
| 1339 } | |
| 1340 else // new in v.101 | |
| 1341 { | |
| 1342 if (temp_deco > deco_ppO2_change) | |
| 1343 deco_diluent = ((temp_deco - const_ppO2)/(N2_ratio + He_ratio)); // new in v.101 // calculate at half of the ascent | |
| 1344 else | |
| 1345 deco_diluent = ((temp_deco - deco_ppO2)/(N2_ratio + He_ratio)); // new in v.101 // calculate at half of the ascent | |
| 1346 if (deco_diluent > (temp_deco)) // new in v.101 | |
| 1347 deco_diluent = temp_deco; // new in v.101 // calculate at half of the ascent | |
| 1348 } | |
| 1349 temp_deco -= 0.5; | |
| 1350 if (deco_diluent > 0.0627) // new in v.101 | |
| 1351 { | |
| 1352 temp_atem = calc_N2_ratio * (deco_diluent - 0.0627); // changed in v.101 | |
| 1353 temp2_atem = calc_He_ratio * (deco_diluent - 0.0627); // changed in v.101 | |
| 1354 } | |
| 1355 else // new in v.101 | |
| 1356 { | |
| 1357 temp_atem = 0.0; // new in v.101 | |
| 1358 temp2_atem = 0.0; // new in v.101 | |
| 1359 } | |
| 1360 sim_tissue_1min(); | |
| 1361 char_O_deco_status = char_O_deco_status + 1; | |
| 1362 if (char_O_deco_status < 16) // 16 is the limit of calculations for one time slot | |
| 1363 int_temp_decostatus = 1; | |
| 1364 } | |
| 1365 } while (int_temp_decostatus == 1); | |
| 167 | 1366 } |
| 116 | 1367 |
| 167 | 1368 ////////////////////////////////////////////////////////////////////////////// |
| 1369 // calc_tissue | |
| 1370 // | |
| 116 | 1371 // optimized in v.101 |
| 167 | 1372 // |
| 1373 static void calc_tissue(static unsigned char period) | |
| 116 | 1374 { |
| 126 | 1375 char_O_gtissue_no = 255; |
| 1376 pres_gtissue_limit = 0.0; | |
| 1377 | |
| 1378 for (ci=0;ci<16;ci++) | |
| 1379 { | |
| 167 | 1380 read_buhlmann_coeffifients(period); // 2 sec or 1 min period. |
| 116 | 1381 |
| 126 | 1382 // N2 |
| 165 | 1383 temp_tissue = (temp_atem - pres_tissue[ci]) * var_N2_e; |
| 126 | 1384 temp_tissue_safety(); |
| 167 | 1385 pres_tissue[ci] += temp_tissue; |
| 165 | 1386 |
| 126 | 1387 // He |
| 167 | 1388 temp_tissue = (temp2_atem - (pres_tissue+16)[ci]) * var_He_e; |
| 126 | 1389 temp_tissue_safety(); |
| 167 | 1390 (pres_tissue+16)[ci] += temp_tissue; |
| 165 | 1391 |
| 167 | 1392 temp_tissue = pres_tissue[ci] + (pres_tissue+16)[ci]; |
| 116 | 1393 |
| 167 | 1394 var_N2_a = (var_N2_a * pres_tissue[ci] + var_He_a * (pres_tissue+16)[ci]) / temp_tissue; |
| 1395 var_N2_b = (var_N2_b * pres_tissue[ci] + var_He_b * (pres_tissue+16)[ci]) / temp_tissue; | |
| 165 | 1396 pres_tissue_limit[ci] = (temp_tissue - var_N2_a) * var_N2_b; |
| 126 | 1397 if (pres_tissue_limit[ci] < 0) |
| 1398 pres_tissue_limit[ci] = 0; | |
| 1399 if (pres_tissue_limit[ci] > pres_gtissue_limit) | |
| 1400 { | |
| 1401 pres_gtissue_limit = pres_tissue_limit[ci]; | |
| 1402 char_O_gtissue_no = ci; | |
| 1403 }//if | |
| 1404 } // for | |
| 167 | 1405 } |
| 116 | 1406 |
| 167 | 1407 ////////////////////////////////////////////////////////////////////////////// |
| 1408 // calc_tissue_2_secs | |
| 1409 // | |
| 1410 // optimized in v.101 | |
| 1411 // | |
| 1412 static void calc_tissue_2_secs(void) | |
| 1413 { | |
| 1414 calc_tissue(0); | |
| 1415 } | |
| 116 | 1416 |
| 167 | 1417 ////////////////////////////////////////////////////////////////////////////// |
| 1418 // calc_tissue_1_min | |
| 1419 // | |
| 1420 // optimized in v.101 | |
| 1421 // | |
| 1422 static void calc_tissue_1_min(void) | |
| 116 | 1423 { |
| 167 | 1424 calc_tissue(1); |
| 1425 } | |
| 1426 | |
| 1427 ////////////////////////////////////////////////////////////////////////////// | |
| 1428 // calc_nullzeit | |
| 1429 // | |
| 1430 // calculates the remaining bottom time | |
| 1431 // | |
| 1432 // unchanged in v.101 | |
| 1433 // | |
| 1434 static void calc_nullzeit(void) | |
| 1435 { | |
| 1436 overlay int loop; | |
| 1437 | |
| 116 | 1438 char_O_nullzeit = 0; |
| 167 | 1439 for(loop = 1; loop <= 17; loop++) |
| 116 | 1440 { |
| 1441 backup_sim_pres_tissue(); | |
| 1442 sim_tissue_10min(); | |
| 1443 char_O_nullzeit = char_O_nullzeit + 10; | |
| 167 | 1444 |
| 116 | 1445 if (char_I_deco_model == 1) |
| 1446 temp1 = GF_high * temp_pres_gtissue_diff + temp_pres_gtissue; | |
| 1447 else | |
| 1448 temp1 = temp_pres_gtissue_limit; | |
| 1449 if (temp1 > temp_surface) // changed in v.102 , if guiding tissue can not be exposed to surface pressure immediately | |
| 167 | 1450 loop = 255; |
| 1451 } | |
| 1452 | |
| 1453 if (loop == 255) | |
| 116 | 1454 { |
| 1455 restore_sim_pres_tissue(); | |
| 1456 char_O_nullzeit = char_O_nullzeit - 10; | |
| 167 | 1457 } //if loop == 255] |
| 1458 | |
| 116 | 1459 if (char_O_nullzeit < 60) |
| 1460 { | |
| 167 | 1461 for(loop=1; loop <= 10; loop++) |
| 116 | 1462 { |
| 1463 sim_tissue_1min(); | |
| 1464 char_O_nullzeit = char_O_nullzeit + 1; | |
| 167 | 1465 if (char_I_deco_model == 1) |
| 1466 temp1 = GF_high * temp_pres_gtissue_diff + temp_pres_gtissue; | |
| 1467 else | |
| 1468 temp1 = temp_pres_gtissue_limit; | |
| 1469 if (temp1 > temp_surface) // changed in v.102 , if guiding tissue can not be exposed to surface pressure immediately | |
| 1470 loop = 255; | |
| 1471 } | |
| 1472 if (loop == 255) | |
| 116 | 1473 char_O_nullzeit = char_O_nullzeit - 1; |
| 1474 } // if char_O_nullzeit < 60 | |
| 1475 } //calc_nullzeit | |
| 1476 | |
| 167 | 1477 ////////////////////////////////////////////////////////////////////////////// |
| 1478 // backup_sim_pres_tissue | |
| 1479 // | |
| 116 | 1480 void backup_sim_pres_tissue(void) |
| 1481 { | |
| 167 | 1482 overlay unsigned char x; |
| 1483 | |
| 1484 for(x = 0; x<32; x++) | |
| 126 | 1485 sim_pres_tissue_backup[x] = sim_pres_tissue[x]; |
| 167 | 1486 } |
| 116 | 1487 |
| 167 | 1488 ////////////////////////////////////////////////////////////////////////////// |
| 1489 // restore_sim_pres_tissue | |
| 1490 // | |
| 116 | 1491 void restore_sim_pres_tissue(void) |
| 1492 { | |
| 167 | 1493 overlay unsigned char x; |
| 1494 | |
| 1495 for(x = 0; x<32; x++) | |
| 126 | 1496 sim_pres_tissue[x] = sim_pres_tissue_backup[x]; |
| 167 | 1497 } |
| 116 | 1498 |
| 167 | 1499 ////////////////////////////////////////////////////////////////////////////// |
| 1500 // calc_ascenttime | |
| 1501 // | |
| 116 | 1502 void calc_ascenttime(void) |
| 1503 { | |
| 126 | 1504 if (pres_respiration > pres_surface) |
| 1505 { | |
| 1506 switch (char_O_deco_status) | |
| 1507 { | |
| 1508 case 2: | |
| 1509 char_O_ascenttime = 255; | |
| 1510 break; | |
| 1511 case 1: | |
| 1512 break; | |
| 1513 default: | |
| 1514 { | |
| 167 | 1515 overlay unsigned char x; |
| 1516 overlay float ascent = pres_respiration - pres_surface + 0.6; // + 0.6 hence 1 minute ascent time from a depth of 4 meter on | |
| 1517 | |
| 1518 if (ascent < 0.0) | |
| 1519 ascent = 0.0; | |
| 1520 if (ascent > 255.0) | |
| 1521 ascent = 255.0; | |
| 1522 char_O_ascenttime = (char)ascent; | |
| 1523 | |
| 1524 for(x=0; x<7; x++) | |
| 1525 { | |
| 1526 overlay int int_ascent = (int)char_O_ascenttime + (int)char_O_array_decotime[x]; | |
| 1527 if(int_ascent >= 255) | |
| 1528 char_O_ascenttime = 255; | |
| 1529 else | |
| 1530 char_O_ascenttime = int_ascent; | |
| 1531 } | |
| 1532 break; | |
| 126 | 1533 } |
| 1534 } | |
| 1535 } | |
| 1536 else | |
| 1537 char_O_ascenttime = 0; | |
| 167 | 1538 } |
| 116 | 1539 |
| 167 | 1540 ////////////////////////////////////////////////////////////////////////////// |
| 1541 // update_startvalues | |
| 1542 // | |
| 116 | 1543 // updated in v.102 |
| 167 | 1544 // |
| 116 | 1545 void update_startvalues(void) |
| 1546 { | |
| 167 | 1547 overlay unsigned char x; |
| 1548 | |
| 116 | 1549 temp_pres_gtissue_limit = pres_gtissue_limit; |
| 1550 temp_pres_gtissue = pres_tissue[char_O_gtissue_no] + pres_tissue[char_O_gtissue_no+16]; | |
| 1551 temp_pres_gtissue_diff = temp_pres_gtissue_limit - temp_pres_gtissue; // negative number | |
| 1552 temp_pres_gtissue_limit_GF_low = GF_low * temp_pres_gtissue_diff + temp_pres_gtissue; | |
| 1553 temp_pres_gtissue_limit_GF_low_below_surface = temp_pres_gtissue_limit_GF_low - pres_surface; | |
| 1554 if (temp_pres_gtissue_limit_GF_low_below_surface < 0) | |
| 1555 temp_pres_gtissue_limit_GF_low_below_surface = 0; | |
| 1556 | |
| 1557 temp_gtissue_no = char_O_gtissue_no; | |
| 1558 for (x = 0;x<16;x++) | |
| 1559 { | |
| 1560 sim_pres_tissue[x] = pres_tissue[x]; | |
| 1561 sim_pres_tissue[x+16] = pres_tissue[x+16]; | |
| 1562 sim_pres_tissue_limit[x] = pres_tissue_limit[x]; | |
| 1563 } | |
| 167 | 1564 } |
| 116 | 1565 |
| 167 | 1566 ////////////////////////////////////////////////////////////////////////////// |
| 1567 // sim_tissue_1min | |
| 1568 // | |
| 116 | 1569 // optimized in v.101 |
| 167 | 1570 // |
| 1571 // Function very simular to calc_tissue, but: | |
| 1572 // + Use a 1min or 10min period. | |
| 1573 // + Do it on sim_pres_tissue, instead of pres_tissue. | |
| 1574 // + Update GF_low state for GF decompression model. | |
| 1575 // | |
| 1576 static void sim_tissue(static unsigned char period) | |
| 116 | 1577 { |
| 126 | 1578 temp_pres_gtissue_limit = 0.0; |
| 1579 temp_gtissue_no = 255; | |
| 167 | 1580 |
| 126 | 1581 for (ci=0;ci<16;ci++) |
| 1582 { | |
| 167 | 1583 read_buhlmann_coeffifients(period); // 1 or 10 minute(s) interval |
| 165 | 1584 |
| 126 | 1585 // N2 |
| 165 | 1586 temp_tissue = (temp_atem - sim_pres_tissue[ci]) * var_N2_e; |
| 126 | 1587 temp_tissue_safety(); |
| 167 | 1588 sim_pres_tissue[ci] += temp_tissue; |
| 126 | 1589 |
| 1590 // He | |
| 167 | 1591 temp_tissue = (temp2_atem - (sim_pres_tissue+16)[ci]) * var_He_e; |
| 126 | 1592 temp_tissue_safety(); |
| 167 | 1593 (sim_pres_tissue+16)[ci] += temp_tissue; |
| 126 | 1594 |
| 1595 // pressure limit | |
| 167 | 1596 temp_tissue = sim_pres_tissue[ci] + (sim_pres_tissue+16)[ci]; |
| 1597 var_N2_a = (var_N2_a * sim_pres_tissue[ci] + var_He_a * (sim_pres_tissue+16)[ci]) / temp_tissue; | |
| 1598 var_N2_b = (var_N2_b * sim_pres_tissue[ci] + var_He_b * (sim_pres_tissue+16)[ci]) / temp_tissue; | |
| 165 | 1599 sim_pres_tissue_limit[ci] = (temp_tissue - var_N2_a) * var_N2_b; |
| 126 | 1600 |
| 1601 if (sim_pres_tissue_limit[ci] < 0) | |
| 1602 sim_pres_tissue_limit[ci] = 0; | |
| 1603 if (sim_pres_tissue_limit[ci] > temp_pres_gtissue_limit) | |
| 1604 { | |
| 1605 temp_pres_gtissue = temp_tissue; | |
| 1606 temp_pres_gtissue_limit = sim_pres_tissue_limit[ci]; | |
| 1607 temp_gtissue_no = ci; | |
| 1608 } | |
| 1609 } // for | |
| 116 | 1610 |
| 126 | 1611 temp_pres_gtissue_diff = temp_pres_gtissue_limit - temp_pres_gtissue; |
| 1612 temp_pres_gtissue_limit_GF_low = GF_low * temp_pres_gtissue_diff + temp_pres_gtissue; | |
| 1613 temp_pres_gtissue_limit_GF_low_below_surface = temp_pres_gtissue_limit_GF_low - pres_surface; | |
| 1614 if (temp_pres_gtissue_limit_GF_low_below_surface < 0) | |
| 1615 temp_pres_gtissue_limit_GF_low_below_surface = 0; | |
| 167 | 1616 } |
| 116 | 1617 |
| 167 | 1618 ////////////////////////////////////////////////////////////////////////////// |
| 1619 // sim_tissue_1min | |
| 1620 // | |
| 1621 static void sim_tissue_1min(void) | |
| 116 | 1622 { |
| 167 | 1623 sim_tissue(1); // 1 minute period |
| 1624 } | |
| 116 | 1625 |
| 167 | 1626 ////////////////////////////////////////////////////////////////////////////// |
| 1627 // sim_tissue_10min | |
| 1628 // | |
| 1629 static void sim_tissue_10min(void) | |
| 1630 { | |
| 1631 sim_tissue(2); // 10 minutes period | |
| 1632 } | |
| 1633 | |
| 1634 ////////////////////////////////////////////////////////////////////////////// | |
| 1635 // clear_decoarray | |
| 1636 // | |
| 116 | 1637 // unchanged in v.101 |
| 167 | 1638 // |
| 1639 static void clear_decoarray(void) | |
| 1640 { | |
| 1641 overlay unsigned char x; | |
| 116 | 1642 |
| 167 | 1643 for(x=0; x<6; ++x) |
| 1644 { | |
| 1645 char_O_array_decodepth[x] = 0; | |
| 1646 char_O_array_decotime [x] = 0; | |
| 1647 } | |
| 1648 char_O_array_decotime[6] = 0; | |
| 1649 } | |
| 1650 | |
| 1651 ////////////////////////////////////////////////////////////////////////////// | |
| 1652 // update_decoarray | |
| 1653 // | |
| 1654 // unchanged in v.101 | |
| 1655 // | |
| 1656 static void update_decoarray() | |
| 116 | 1657 { |
| 167 | 1658 overlay int stop_time; |
| 1659 overlay unsigned char x = 0; | |
| 116 | 1660 do |
| 1661 { | |
| 1662 if (char_O_array_decodepth[x] == temp_depth_limit) | |
| 1663 { | |
| 167 | 1664 stop_time = char_O_array_decotime[x] + temp_decotime; |
| 1665 if (stop_time < 0) | |
| 1666 stop_time = 0; | |
| 1667 if (stop_time > 240) | |
| 1668 stop_time = 240; | |
| 1669 char_O_array_decotime[x] = stop_time; | |
| 116 | 1670 x = 10; // exit |
| 1671 } // if | |
| 1672 else | |
| 1673 { | |
| 1674 if (char_O_array_decodepth[x] == 0) | |
| 1675 { | |
| 1676 if (temp_depth_limit > 255) | |
| 1677 char_O_array_decodepth[x] = 255; | |
| 1678 else | |
| 1679 char_O_array_decodepth[x] = (char)temp_depth_limit; | |
| 167 | 1680 stop_time = char_O_array_decotime[x] + temp_decotime; |
| 1681 if (stop_time > 240) | |
| 116 | 1682 char_O_array_decotime[x] = 240; |
| 1683 else | |
| 167 | 1684 char_O_array_decotime[x] = (char)stop_time; |
| 116 | 1685 x = 10; // exit |
| 1686 } // if | |
| 1687 else | |
| 1688 x++; | |
| 1689 } // else | |
| 1690 } while (x<6); | |
| 1691 if (x == 6) | |
| 1692 { | |
| 167 | 1693 stop_time = char_O_array_decotime[6] + temp_decotime; |
| 1694 if (stop_time > 220) | |
| 116 | 1695 char_O_array_decotime[6] = 220; |
| 1696 else | |
| 167 | 1697 char_O_array_decotime[6] = (char)stop_time; |
| 116 | 1698 } // if x == 6 |
| 167 | 1699 } |
| 116 | 1700 |
| 167 | 1701 ////////////////////////////////////////////////////////////////////////////// |
| 1702 // calc_gradient_factor | |
| 1703 // | |
| 165 | 1704 // optimized in v.101 (var_N2_a) |
| 116 | 1705 // new code in v.102 |
| 167 | 1706 // |
| 1707 static void calc_gradient_factor(void) | |
| 116 | 1708 { |
| 1709 // tissue > respiration (entsaettigungsvorgang) | |
| 1710 // gradient ist wieviel prozent an limit mit basis tissue | |
| 1711 // dh. 0% = respiration == tissue | |
| 1712 // dh. 100% = respiration == limit | |
| 1713 temp_tissue = pres_tissue[char_O_gtissue_no] + pres_tissue[char_O_gtissue_no+16]; | |
| 1714 temp1 = temp_tissue - pres_respiration; | |
| 1715 temp2 = temp_tissue - pres_tissue_limit[char_O_gtissue_no]; // changed in v.102 | |
| 1716 temp2 = temp1/temp2; | |
| 1717 temp2 = temp2 * 100; // displayed in percent | |
| 1718 if (temp2 < 0) | |
| 1719 temp2 = 0; | |
| 1720 if (temp2 > 255) | |
| 1721 temp2 = 255; | |
| 1722 if (temp1 < 0) | |
| 1723 char_O_gradient_factor = 0; | |
| 1724 else | |
| 1725 char_O_gradient_factor = (char)temp2; | |
| 1726 | |
| 1727 temp3 = temp2; | |
| 1728 | |
| 1729 if (char_I_deco_model == 1) // calculate relative gradient factor | |
| 1730 { | |
| 1731 temp1 = (float)temp_depth_GF_low_meter * 0.09995; | |
| 1732 temp2 = pres_respiration - pres_surface; | |
| 1733 if (temp2 <= 0) | |
| 1734 temp1 = GF_high; | |
| 1735 else | |
| 1736 if (temp2 >= temp1) | |
| 1737 temp1 = GF_low; | |
| 1738 else | |
| 1739 temp1 = GF_low + (temp1 - temp2)/temp1*GF_delta; | |
| 1740 if (temp_depth_GF_low_meter == 0) | |
| 1741 temp1 = GF_high; | |
| 1742 temp2 = temp3 / temp1; // temp3 is already in percent | |
| 1743 if (temp2 < 0) | |
| 1744 temp2 = 0; | |
| 1745 if (temp2 > 255) | |
| 1746 temp2 = 255; | |
| 1747 char_O_relative_gradient_GF = (char)temp2; | |
| 1748 } // calc relative gradient factor | |
| 1749 else | |
| 1750 { | |
| 1751 char_O_relative_gradient_GF = char_O_gradient_factor; | |
| 1752 } | |
| 167 | 1753 } |
| 116 | 1754 |
| 167 | 1755 ////////////////////////////////////////////////////////////////////////////// |
| 1756 // deco_calc_desaturation_time | |
| 1757 // | |
| 116 | 1758 // FIXED N2_ratio |
| 1759 // unchanged in v.101 | |
| 167 | 1760 // |
| 116 | 1761 void deco_calc_desaturation_time(void) |
| 1762 { | |
| 167 | 1763 overlay int desat_time; // For a particular compartiment, in min. |
| 1764 | |
|
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1766 |
| 126 | 1767 N2_ratio = 0.7902; // FIXED sum as stated in b"uhlmann |
| 1768 pres_surface = (float)int_I_pres_surface / 1000.0; | |
| 1769 temp_atem = N2_ratio * (pres_surface - 0.0627); | |
| 1770 int_O_desaturation_time = 0; | |
| 1771 float_desaturation_multiplier = char_I_desaturation_multiplier / 142.0; // new in v.101 (70,42%/100.=142) | |
| 1772 | |
| 1773 for (ci=0;ci<16;ci++) | |
| 1774 { | |
| 165 | 1775 var_N2_halftime = buhlmann_ht[ci]; |
| 167 | 1776 var_He_halftime = (buhlmann_ht+16)[ci]; |
| 116 | 1777 |
| 126 | 1778 // saturation_time (for flight) and N2_saturation in multiples of halftime |
| 1779 // version v.100: 1.1 = 10 percent distance to totally clean (totally clean is not possible, would take infinite time ) | |
| 1780 // new in version v.101: 1.07 = 7 percent distance to totally clean (totally clean is not possible, would take infinite time ) | |
| 1781 // changes in v.101: 1.05 = 5 percent dist to totally clean is new desaturation point for display and noFly calculations | |
| 1782 // N2 | |
| 1783 temp1 = 1.05 * temp_atem; | |
| 1784 temp1 = temp1 - pres_tissue[ci]; | |
| 1785 temp2 = temp_atem - pres_tissue[ci]; | |
| 1786 if (temp2 >= 0.0) | |
| 1787 { | |
| 1788 temp1 = 0; | |
| 1789 temp2 = 0; | |
| 1790 } | |
| 1791 else | |
| 1792 temp1 = temp1 / temp2; | |
| 1793 if (temp1 > 0.0) | |
| 1794 { | |
| 1795 temp1 = log(1.0 - temp1); | |
| 1796 temp1 = temp1 / -0.6931; // temp1 is the multiples of half times necessary. | |
| 1797 // 0.6931 is ln(2), because the math function log() calculates with a base of e not 2 as requested. | |
| 1798 // minus because log is negative | |
| 165 | 1799 temp2 = var_N2_halftime * temp1 / float_desaturation_multiplier; // time necessary (in minutes ) for complete desaturation (see comment about 10 percent) , new in v.101: float_desaturation_multiplier |
| 126 | 1800 } |
| 1801 else | |
| 1802 { | |
| 1803 temp1 = 0; | |
| 1804 temp2 = 0; | |
| 1805 } | |
| 116 | 1806 |
| 126 | 1807 // He |
| 167 | 1808 temp3 = 0.1 - (pres_tissue+16)[ci]; |
| 126 | 1809 if (temp3 >= 0.0) |
| 1810 { | |
| 1811 temp3 = 0; | |
| 1812 temp4 = 0; | |
| 1813 } | |
| 1814 else | |
| 167 | 1815 temp3 = -1.0 * temp3 / (pres_tissue+16)[ci]; |
| 126 | 1816 if (temp3 > 0.0) |
| 1817 { | |
| 1818 temp3 = log(1.0 - temp3); | |
| 1819 temp3 = temp3 / -0.6931; // temp1 is the multiples of half times necessary. | |
| 1820 // 0.6931 is ln(2), because the math function log() calculates with a base of e not 2 as requested. | |
| 1821 // minus because log is negative | |
| 165 | 1822 temp4 = var_He_halftime * temp3 / float_desaturation_multiplier; // time necessary (in minutes ) for "complete" desaturation, new in v.101 float_desaturation_multiplier |
| 126 | 1823 } |
| 1824 else | |
| 1825 { | |
| 1826 temp3 = 0; | |
| 1827 temp4 = 0; | |
| 1828 } | |
| 116 | 1829 |
| 126 | 1830 // saturation_time (for flight) |
| 1831 if (temp4 > temp2) | |
| 167 | 1832 desat_time = (int)temp4; |
| 126 | 1833 else |
| 167 | 1834 desat_time = (int)temp2; |
| 1835 if(desat_time > int_O_desaturation_time) | |
| 1836 int_O_desaturation_time = desat_time; | |
| 116 | 1837 |
| 126 | 1838 // N2 saturation in multiples of halftime for display purposes |
| 1839 temp2 = temp1 * 20.0; // 0 = 1/8, 120 = 0, 249 = 8 | |
| 1840 temp2 = temp2 + 80.0; // set center | |
| 1841 if (temp2 < 0.0) | |
| 1842 temp2 = 0.0; | |
| 1843 if (temp2 > 255.0) | |
| 1844 temp2 = 255.0; | |
| 1845 char_O_tissue_saturation[ci] = (char)temp2; | |
| 1846 // He saturation in multiples of halftime for display purposes | |
| 1847 temp4 = temp3 * 20.0; // 0 = 1/8, 120 = 0, 249 = 8 | |
| 1848 temp4 = temp4 + 80.0; // set center | |
| 1849 if (temp4 < 0.0) | |
| 1850 temp4 = 0.0; | |
| 1851 if (temp4 > 255.0) | |
| 1852 temp4 = 255.0; | |
| 167 | 1853 (char_O_tissue_saturation+16)[ci] = (char)temp4; |
| 126 | 1854 } // for |
| 167 | 1855 } |
| 116 | 1856 |
| 167 | 1857 ////////////////////////////////////////////////////////////////////////////// |
| 1858 // calc_wo_deco_step_1_min | |
| 1859 // | |
| 116 | 1860 // FIXED N2 Ratio |
| 1861 // optimized in v.101 (...saturation_multiplier) | |
| 1862 // desaturation slowed down to 70,42% | |
| 167 | 1863 // |
| 1864 static void calc_wo_deco_step_1_min(void) | |
| 116 | 1865 { |
| 1866 if(flag_in_divemode) | |
| 1867 { | |
| 1868 flag_in_divemode = 0; | |
| 1869 set_dbg_end_of_dive(); | |
| 1870 } | |
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1871 |
| 126 | 1872 N2_ratio = 0.7902; // FIXED, sum lt. buehlmann |
| 1873 pres_respiration = (float)int_I_pres_respiration / 1000.0; // assembler code uses different digit system | |
| 1874 pres_surface = (float)int_I_pres_surface / 1000.0; | |
| 1875 temp_atem = N2_ratio * (pres_respiration - 0.0627); // 0.0627 is the extra pressure in the body | |
| 1876 temp2_atem = 0.0; | |
| 1877 temp_surface = pres_surface; // the b"uhlmann formula using temp_surface does not use the N2_ratio | |
| 1878 float_desaturation_multiplier = char_I_desaturation_multiplier / 142.0; // new in v.101 (70,42%/100.=142) | |
| 1879 float_saturation_multiplier = char_I_saturation_multiplier / 100.0; | |
| 1880 | |
| 167 | 1881 calc_tissue_1_min(); // update the pressure in the 32 tissues in accordance with the new ambient pressure |
| 1882 | |
| 126 | 1883 clear_decoarray(); |
| 1884 char_O_deco_status = 0; | |
| 1885 char_O_nullzeit = 0; | |
| 1886 char_O_ascenttime = 0; | |
| 1887 calc_gradient_factor(); | |
| 167 | 1888 } |
| 126 | 1889 |
| 167 | 1890 ////////////////////////////////////////////////////////////////////////////// |
| 1891 ////////////////////////////////////////////////////////////////////////////// | |
| 1892 ////////////////////////////////// deco_hash ///////////////////////////////// | |
| 1893 ////////////////////////////////////////////////////////////////////////////// | |
| 1894 ////////////////////////////////////////////////////////////////////////////// | |
| 126 | 1895 |
| 116 | 1896 void deco_hash(void) |
| 1897 { | |
| 167 | 1898 overlay unsigned char md_i, md_j; // Loop index. |
| 1899 overlay unsigned char md_t; | |
| 1900 overlay unsigned char md_buffer[16]; | |
| 1901 overlay unsigned char md_temp; | |
| 1902 overlay unsigned int md_pointer; | |
| 1903 | |
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1904 RESET_C_STACK |
| 126 | 1905 |
| 1906 // init | |
| 164 | 1907 for(md_i=0;md_i<16;md_i++) |
| 126 | 1908 { |
| 1909 md_state[md_i] = 0; | |
| 164 | 1910 char_O_hash[md_i] = 0; |
| 126 | 1911 } // for md_i 16 |
| 116 | 1912 |
| 126 | 1913 _asm |
| 167 | 1914 movlw 0x01 // md_pi address. |
| 1915 movwf TBLPTRU,0 | |
| 1916 movlw 0x7E | |
| 1917 movwf TBLPTRH,0 | |
| 1918 movlw 0x00 | |
| 1919 movwf TBLPTRL,0 | |
| 126 | 1920 _endasm; |
| 165 | 1921 md_i = 0; |
| 1922 do { | |
| 126 | 1923 _asm |
| 1924 TBLRDPOSTINC | |
| 1925 movff TABLAT,md_temp | |
| 1926 _endasm | |
| 165 | 1927 md_pi_subst[md_i++] = md_temp; |
| 1928 } while( md_i != 0 ); | |
| 1929 | |
| 126 | 1930 _asm |
| 167 | 1931 movlw 0x00 |
| 1932 movwf TBLPTRU,0 | |
| 1933 movlw 0x00 | |
| 1934 movwf TBLPTRH,0 | |
| 1935 movlw 0x00 | |
| 1936 movwf TBLPTRL,0 | |
| 126 | 1937 _endasm |
| 167 | 1938 |
| 126 | 1939 // cycle buffers |
| 1940 for (md_pointer=0x0000;md_pointer<0x17f3;md_pointer++) | |
| 1941 { | |
| 1942 md_t = 0; | |
| 1943 for (md_i=0;md_i<16;md_i++) | |
| 1944 { | |
| 1945 if(md_pointer == 9) | |
| 164 | 1946 md_temp = char_O_hash[md_i]; |
| 126 | 1947 else |
| 1948 { | |
| 1949 _asm | |
| 167 | 1950 TBLRDPOSTINC |
| 1951 movff TABLAT,md_temp | |
| 126 | 1952 _endasm |
| 1953 } // else | |
| 167 | 1954 |
| 1955 md_buffer[md_i] = md_temp; | |
| 126 | 1956 md_state[md_i+16] = md_buffer[md_i]; |
| 1957 md_state[md_i+32] = (unsigned char)(md_buffer[md_i] ^ md_state[md_i]); | |
| 1958 } // for md_i 16 | |
| 1959 | |
| 1960 for (md_i=0;md_i<18;md_i++) | |
| 1961 { | |
| 1962 for (md_j=0;md_j<48;md_j++) | |
| 1963 { | |
| 167 | 1964 md_state[md_j] ^= md_pi_subst[md_t]; |
| 126 | 1965 md_t = md_state[md_j]; |
| 1966 } // for md_j 48 | |
| 1967 md_t = (unsigned char)(md_t+1); | |
| 1968 } // for md_i 18 | |
| 164 | 1969 md_t = char_O_hash[15]; |
| 126 | 1970 |
| 1971 for (md_i=0;md_i<16;md_i++) | |
| 1972 { | |
| 167 | 1973 char_O_hash[md_i] ^= md_pi_subst[(md_buffer[md_i] ^ md_t)]; |
| 164 | 1974 md_t = char_O_hash[md_i]; |
| 126 | 1975 } // for md_i 16 |
| 1976 } // for md_pointer | |
| 116 | 1977 } // void deco_hash(void) |
| 1978 | |
| 167 | 1979 ////////////////////////////////////////////////////////////////////////////// |
| 1980 // deco_clear_CNS_fraction | |
| 1981 // | |
| 116 | 1982 // new in v.101 |
| 167 | 1983 // |
| 116 | 1984 void deco_clear_CNS_fraction(void) |
| 1985 { | |
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1986 RESET_C_STACK |
| 126 | 1987 CNS_fraction = 0.0; |
| 1988 char_O_CNS_fraction = 0; | |
| 167 | 1989 } |
| 116 | 1990 |
| 167 | 1991 ////////////////////////////////////////////////////////////////////////////// |
| 1992 // deco_calc_CNS_fraction | |
| 1993 // | |
| 116 | 1994 // new in v.101 |
| 1995 // optimized in v.102 : with new variables char_I_actual_ppO2 and actual_ppO2 | |
| 167 | 1996 // |
| 116 | 1997 // Input: char_I_actual_ppO2 |
| 1998 // Output: char_O_CNS_fraction | |
| 1999 // Uses and Updates: CNS_fraction | |
| 2000 // Uses: acutal_ppO2 | |
| 167 | 2001 // |
| 116 | 2002 void deco_calc_CNS_fraction(void) |
| 2003 { | |
| 167 | 2004 overlay float actual_ppO2; |
| 126 | 2005 RESET_C_STACK |
| 167 | 2006 |
| 126 | 2007 actual_ppO2 = (float)char_I_actual_ppO2 / 100.0; |
| 116 | 2008 |
| 126 | 2009 if (char_I_actual_ppO2 < 50) |
| 2010 CNS_fraction = CNS_fraction;// no changes | |
| 2011 else if (char_I_actual_ppO2 < 60) | |
| 2012 CNS_fraction = 1/(-54000.0 * actual_ppO2 + 54000.0) + CNS_fraction; | |
| 2013 else if (char_I_actual_ppO2 < 70) | |
| 2014 CNS_fraction = 1/(-45000.0 * actual_ppO2 + 48600.0) + CNS_fraction; | |
| 2015 else if (char_I_actual_ppO2 < 80) | |
| 2016 CNS_fraction = 1/(-36000.0 * actual_ppO2 + 42300.0) + CNS_fraction; | |
| 2017 else if (char_I_actual_ppO2 < 90) | |
| 2018 CNS_fraction = 1/(-27000.0 * actual_ppO2 + 35100.0) + CNS_fraction; | |
| 2019 else if (char_I_actual_ppO2 < 110) | |
| 2020 CNS_fraction = 1/(-18000.0 * actual_ppO2 + 27000.0) + CNS_fraction; | |
| 2021 else if (char_I_actual_ppO2 < 150) | |
| 2022 CNS_fraction = 1/(-9000.0 * actual_ppO2 + 17100.0) + CNS_fraction; | |
| 2023 else if (char_I_actual_ppO2 < 160) | |
| 2024 CNS_fraction = 1/(-22500.0 * actual_ppO2 + 37350.0) + CNS_fraction; | |
| 2025 else if (char_I_actual_ppO2 < 165) | |
| 2026 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 | |
| 2027 else if (char_I_actual_ppO2 < 170) | |
| 2028 CNS_fraction = 0.00102 + CNS_fraction; // example calculation: Sqrt((1.7/1.55)^20)*0.000404 | |
| 2029 else if (char_I_actual_ppO2 < 175) | |
| 2030 CNS_fraction = 0.00136 + CNS_fraction; | |
| 2031 else if (char_I_actual_ppO2 < 180) | |
| 2032 CNS_fraction = 0.00180 + CNS_fraction; | |
| 2033 else if (char_I_actual_ppO2 < 185) | |
| 2034 CNS_fraction = 0.00237 + CNS_fraction; | |
| 2035 else if (char_I_actual_ppO2 < 190) | |
| 2036 CNS_fraction = 0.00310 + CNS_fraction; | |
| 2037 else if (char_I_actual_ppO2 < 195) | |
| 2038 CNS_fraction = 0.00401 + CNS_fraction; | |
| 2039 else if (char_I_actual_ppO2 < 200) | |
| 2040 CNS_fraction = 0.00517 + CNS_fraction; | |
| 2041 else if (char_I_actual_ppO2 < 230) | |
| 2042 CNS_fraction = 0.0209 + CNS_fraction; | |
| 2043 else | |
| 2044 CNS_fraction = 0.0482 + CNS_fraction; // value for 2.5 | |
| 116 | 2045 |
| 126 | 2046 if (CNS_fraction > 2.5) |
| 2047 CNS_fraction = 2.5; | |
| 2048 if (CNS_fraction < 0.0) | |
| 2049 CNS_fraction = 0.0; | |
| 2050 | |
| 2051 char_O_CNS_fraction = (char)((CNS_fraction + 0.005)* 100.0); | |
| 167 | 2052 } |
| 116 | 2053 |
| 167 | 2054 ////////////////////////////////////////////////////////////////////////////// |
| 2055 // deco_calc_CNS_decrease_15min | |
| 2056 // | |
| 116 | 2057 // new in v.101 |
| 167 | 2058 // |
| 116 | 2059 // calculates the half time of 90 minutes in 6 steps of 15 min |
| 167 | 2060 // |
| 116 | 2061 // Output: char_O_CNS_fraction |
| 2062 // Uses and Updates: CNS_fraction | |
| 167 | 2063 // |
| 116 | 2064 void deco_calc_CNS_decrease_15min(void) |
| 2065 { | |
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2066 RESET_C_STACK |
| 126 | 2067 CNS_fraction = 0.890899 * CNS_fraction; |
| 167 | 2068 char_O_CNS_fraction = (char)(CNS_fraction * 100.0 + 0.5); |
| 2069 } | |
| 116 | 2070 |
| 167 | 2071 ////////////////////////////////////////////////////////////////////////////// |
| 2072 // deco_calc_percentage | |
| 2073 // | |
| 116 | 2074 // new in v.101 |
| 167 | 2075 // |
| 116 | 2076 // calculates int_I_temp * char_I_temp / 100 |
| 2077 // output is int_I_temp | |
| 2078 | |
| 2079 void deco_calc_percentage(void) | |
| 2080 { | |
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2081 RESET_C_STACK |
| 126 | 2082 temp1 = (float)int_I_temp; |
| 2083 temp2 = (float)char_I_temp / 100.0; | |
| 2084 temp3 = temp1 * temp2; | |
| 2085 int_I_temp = (int)temp3; | |
| 116 | 2086 } |
| 2087 | |
| 167 | 2088 ////////////////////////////////////////////////////////////////////////////// |
| 2089 | |
| 116 | 2090 void deco_push_tissues_to_vault(void) |
| 2091 { | |
| 167 | 2092 overlay unsigned char x; |
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2093 RESET_C_STACK |
| 167 | 2094 |
| 116 | 2095 cns_vault = CNS_fraction; |
| 167 | 2096 for (x=0;x<32;x++) |
| 2097 pres_tissue_vault[x] = pres_tissue[x]; | |
| 116 | 2098 } |
| 167 | 2099 |
| 116 | 2100 void deco_pull_tissues_from_vault(void) |
| 2101 { | |
| 167 | 2102 overlay unsigned char x; |
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2103 RESET_C_STACK |
| 167 | 2104 |
| 116 | 2105 CNS_fraction = cns_vault; |
| 167 | 2106 for (x=0;x<32;x++) |
| 2107 pres_tissue[x] = pres_tissue_vault[x]; | |
| 116 | 2108 } |
| 2109 | |
| 167 | 2110 ////////////////////////////////////////////////////////////////////////////// |
| 2111 // | |
| 164 | 2112 void main() {} |