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view src/divemode.asm @ 609:6341f6663579
TR Battery menu
| author | heinrichsweikamp |
|---|---|
| date | Wed, 09 Jan 2019 15:13:36 +0100 |
| parents | d866684249bd |
| children | c40025d8e750 |
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;============================================================================= ; ; File divemode.asm REFACTORED VERSION V2.99e ; ; Divemode ; ; Copyright (c) 2011, JD Gascuel, HeinrichsWeikamp, all right reserved. ;============================================================================= ; HISTORY ; 2011-08-15 : [mH] moving from OSTC code #include "hwos.inc" ; mandatory header #include "shared_definitions.h" ; mailbox from/to p2_deco.c #include "tft_outputs.inc" #include "strings.inc" #include "tft.inc" #include "eeprom_rs232.inc" #include "isr.inc" #include "math.inc" #include "wait.inc" #include "customview.inc" #include "start.inc" #include "adc_lightsensor.inc" #include "ghostwriter.inc" #include "i2c.inc" #include "calibrate.inc" #include "convert.inc" IFDEF _rx_functions #include "rx_ops.inc" ENDIF extern TFT_dive_compass_heading extern do_line_menu extern do_main_divemenu extern option_save_all extern init_recording_params ;---- Private local variables ------------------------------------------------- CBLOCK local1 ; max size is 16 Byte !!! apnoe_timeout_counter ; timeout counter for apnoe mode sensor_setpoint ; sensor ppo2 in 0.01bar for deco routine check_gas_num ; used in search for best gas/dil: current gas/dil number (1-5) check_gas_depth ; used in search for best gas/dil: current gas/dil change depth check_gas_type ; used in search for best gas/dil: current gas/dil type check_gas_O2_ratio ; used in search for best gas/dil: current gas/dil O2 ratio best_gas_num ; used in search for best gas/dil: best gas/dil number (1-5) CAUTION: there is also a variable named best_gas_number ! best_gas_depth ; used in search for best gas/dil: best gas/dil change depth ppO2_min ; used in search for best gas/dil: minimum ppO2 required ppO2_max ; used in search for best gas/dil: maximum ppO2 allowed ENDC ; used: 10 byte, remaining: 6 byte CBLOCK local2 ; max size is 16 Byte !!! average_depth_hold:4 ; used to calculate the resettable average depth average_depth_hold_total:4 ; used to calculate the absolute average depth ENDC ; used: 8 byte, remaining: 8 byte dmode CODE ;============================================================================= global diveloop diveloop: banksel common call speed_normal call diveloop_boot ; boot tasks for all modes ; startup tasks for all modes call TFT_boot ; initialize TFT (includes clear screen) movlw CCP1CON_VALUE ; See hwos.inc movwf CCP1CON ; Power-on backlight bsf FLAG_TFT_divemode_mask ; request display of dive mode mask movff customview_divemode,menupos3; reload last custom view bsf redraw_custview_mask ; request redraw of last custom view btfsc FLAG_apnoe_mode bsf realdive ; set realdive flag in apnoe mode btfsc FLAG_apnoe_mode ; done for apnoe or gauge mode bra diveloop_loop_start btfsc FLAG_gauge_mode ; done for apnoe or gauge mode bra diveloop_loop_start ; Deco modes bsf FLAG_TFT_active_gas_divemode; request display of gas and setpoint bsf FLAG_TFT_display_ndl_mask ; request display of "NDL" ; +@5 init clrf WREG ; WAIT marker: display "---" movff WREG,char_I_sim_advance_time movff WREG,int_O_alternate_ascenttime+0 bsf WREG,int_not_yet_computed bsf WREG,int_invalid_flag movff WREG,int_O_alternate_ascenttime+1 diveloop_loop_start: btfsc FLAG_TFT_divemode_mask call TFT_divemode_mask btfsc FLAG_TFT_display_ndl_mask call TFT_display_ndl_mask diveloop_loop: ; the dive loop starts here btfss quarter_second_update bra diveloop_loop1 ; tasks any 1/4 second, any mode bcf quarter_second_update ; clear flag btfsc alternative_divelayout ; in alternative layout? bra diveloop_loop1 ; YES - no compass in alternative layout mode movlw index_compass_dm ; NO - index of compass view cpfseq menupos3 ; - in compass view? bra diveloop_loop1 ; NO - done call TFT_dive_compass_heading ; YES - update compass heading value bsf FLAG_TFT_temp_divemode ; - redraw temperature (is slightly affected from compass heading arrow) diveloop_loop1: btfss onesecupdate ; next second begun? bra diveloop_loop3 ; NO ; tasks any new second... bcf onesecupdate ; one seconds update, clear flag here in case it's set again in ISR before all tasks are done. ; ###-- USE FOR DEBUG ONLY - RESETS RX CIRCUITRY --### ; bsf LEDg ; ###----------------------------------------------### ; compute current depth in meters SAFE_2BYTE_COPY rel_pressure,xA movlw .100 movwf xB+0 clrf xB+1 call div16x16 ; xC = xA / xB, xC+0 now holds depth in full meters movff xC+0,curr_depth ; store result in curr_depth ; compute ambient pressure / 10, will be needed later SAFE_2BYTE_COPY amb_pressure,xA movlw .10 movwf xB+0 clrf xB+1 call div16x16 ; xC = xA / xB = p_amb / 10 movff xC+0,amb_press_10+0 ; store result for later use movff xC+1,amb_press_10+1 ; ... ; display depth based on full seconds interval (nicer blinking) btfss alternative_divelayout rcall TFT_output4_normal btfsc alternative_divelayout rcall TFT_output4_alternative btfsc FLAG_apnoe_mode ; in Apnoe mode? bra diveloop_loop1_nonedeco ; YES - do Apnoe mode every second tasks ; tasks any new second - only for deco modes diveloop_loop1_deco: bsf FLAG_TFT_divemins ; display (new) dive time! btfsc show_safety_stop ; show the safety stop? bsf FLAG_TFT_show_safety_stop ; YES - show/delete if done btfss alternative_divelayout rcall TFT_output1_normal btfsc alternative_divelayout rcall TFT_output1_alternative call divemode_check_for_warnings ; check for warnings IFDEF _rx_functions btfss FLAG_tr_enabled ; TR functions enabled? bra diveloop_loop1_deco1 ; NO - skip pressure readings part call get_pressure_readings ; YES - get pressure readings call configure_sac_calculation ; - set up SAC calculation diveloop_loop1_deco1: ENDIF call calc_deco_divemode ; calculate decompression and set resulting display flags btfss alternative_divelayout rcall TFT_output2_normal btfsc alternative_divelayout rcall TFT_output2_alternative bra diveloop_loop2 ; continue with common tasks ; tasks any new second - only for apnoe mode diveloop_loop1_nonedeco: rcall divemode_apnoe_tasks ; 1 sec. apnoe tasks call customview_second ; do every-second tasks for the custom view area ;bra diveloop_loop2 ; common tasks ; continue tasks any new second, any mode diveloop_loop2: btfsc redraw_custview_mask ; shall we redraw the custom view mask? call customview_mask ; YES - redraw custom view mask rcall timeout_divemode ; ** menu timeout? ** - this routine sets the required flags rcall set_dive_modes ; tests if depth > threshold rcall set_min_temp ; store min. temp if required (future hardware will need this to be checked 1/second...) btfsc oneminupdate ; one minute tasks rcall update_divemode60 ; update clock, etc. bsf FLAG_TFT_active_gas_divemode; have the gas and setpoint redrawn on every second to update setpoint display, animate the blinking, etc. btfss alternative_divelayout rcall TFT_output3_normal btfsc alternative_divelayout rcall TFT_output3_alternative ; ###-- USE FOR DEBUG ONLY - RESETS RX CIRCUITRY --### ; bcf LEDg ; ###----------------------------------------------### ; tasks any round, any mode diveloop_loop3: call test_switches_divemode ; check switches in dive mode global diveloop_loop4 diveloop_loop4: ; menu-exit returns here... btfsc toggle_customview ; next view? call customview_toggle ; YES - show next custom view (and delete this flag) btfsc divemode_gaschange ; gas switch flag set? call gas_switched_common ; YES btfsc toggle_gf ; toggle GF/aGF? rcall divemodemode_togglegf ; YES IFDEF _cave_mode btfsc toggle_turn_dive ; toggle dive turned? rcall divemodemode_toggleturn ; YES ENDIF btfsc FLAG_set_marker ; shall set a marker? call set_logbook_marker ; YES btfsc store_sample ; shall store new sample? call store_dive_data ; YES - store profile data btfss divemode ; dive finished? goto ghostwriter_end_dive ; YES - dive finished! btfsc pressure_refresh ; new pressure available? rcall set_max_depth ; YES - update max. depth if required btfsc pressure_refresh ; new pressure available? bsf FLAG_TFT_depth ; YES - update depth bcf pressure_refresh ; clear flag btfsc temp_changed ; temperature changed? bsf FLAG_TFT_temp_divemode ; YES - display temperature IFDEF _screendump btfsc enable_screen_dumps ; screen dump function enabled? call TFT_dump_screen_check ; YES - check if requested and do it ENDIF bra diveloop_loop ; loop the dive mode ;-------------------------------------------------------------------------------------------------------- TFT_output1_normal: ; beginning of any new second - only for deco modes btfsc FLAG_TFT_divemode_mask call TFT_divemode_mask btfsc FLAG_TFT_divemins call TFT_divemins ; display (new) dive time! call customview_second ; do every-second tasks for the custom view area (in sync with the dive time) mH btfsc FLAG_TFT_show_safety_stop call TFT_show_safety_stop ; show safety stop btfsc FLAG_TFT_clear_safety_stop call TFT_clear_safety_stop ; clear safety stop return TFT_output1_alternative: ; beginning of any new second - only for deco modes btfsc FLAG_TFT_divemode_mask_alt call TFT_divemode_mask_alternative ; alternative mask btfsc FLAG_TFT_divemins call TFT_divemins_alternative ; display (new) divetime! call customview_alternative_second ; do every-second tasks for the custom view area (in sync with the dive time) mH btfsc FLAG_TFT_big_deco_alt call TFT_big_deco_alt ; big deco, also manages alternative safety stop thus moved to first wave of outputs [rl] return TFT_output2_normal: ; any new second - only for deco modes btfsc FLAG_TFT_display_ndl_mask call TFT_display_ndl_mask btfsc FLAG_TFT_display_ndl call TFT_display_ndl btfsc FLAG_TFT_display_deko_mask call TFT_display_deko_mask btfsc FLAG_TFT_display_deko call TFT_display_deko btfsc FLAG_TFT_display_tts call TFT_display_tts return TFT_output2_alternative: ; any new second - only for deco modes return TFT_output3_normal: ; tasks any new second, any mode, after deco calculations btfsc FLAG_TFT_max_depth call TFT_max_depth ; use normal max. depth btfsc FLAG_TFT_divemode_warning call TFT_divemode_warning btfsc FLAG_TFT_divemode_warning_clear call TFT_divemode_warning_clear btfsc FLAG_TFT_dive_warning_text_clear call TFT_clear_warning_text ; clear complete warnings area btfsc FLAG_TFT_dive_warning_text_clr2 call TFT_clear_warning_text_2nd_row ; clear 2nd row of warnings return TFT_output3_alternative: ; tasks any new second btfsc FLAG_TFT_max_depth call TFT_max_depth_alternative ; big max. depth btfsc FLAG_TFT_dive_warning_text_clear call TFT_clear_warning_text ; clear complete warnings area (in alt mode only 2nd row...) return TFT_output4_normal: ; tasks any round, any mode, before deco calculations (stable timebase) btfsc FLAG_TFT_depth call TFT_depth ; display depth btfsc FLAG_TFT_active_gas_divemode call TFT_active_gas_divemode ; display gas/setpoint btfsc FLAG_TFT_temp_divemode call TFT_temp_divemode ; update temperature return TFT_output4_alternative: ; tasks any round, any mode btfsc FLAG_TFT_depth call TFT_depth ; display new depth return ;-------------------------------------------------------------------------------------------------------- divemode_apnoe_tasks: ; 1 sec. apnoe tasks call TFT_display_apnoe_descent ; show descent timer call TFT_max_depth ; use normal max. depth btfsc divemode2 ; time running? bra divemode_apnoe_tasks2 ; YES - new descent, reset data if flag is set rcall apnoe_calc_maxdepth call TFT_display_apnoe_surface call TFT_display_apnoe_last_max ; show last max. depth incf apnoe_surface_secs,F movlw d'60' cpfseq apnoe_surface_secs bra divemode_apnoe_tasks1 clrf apnoe_surface_secs incf apnoe_surface_mins,F divemode_apnoe_tasks1: bcf FLAG_active_descent ; clear flag btfsc divemode2 ; time running? return ; YES - return bsf FLAG_active_descent ; set flag return divemode_apnoe_tasks2: btfss FLAG_active_descent ; are we descending? return ; NO - we are at the surface rcall apnoe_calc_maxdepth ; YES call TFT_apnoe_clear_surface ; clear surface timer clrf apnoe_timeout_counter ; delete timeout clrf apnoe_surface_secs clrf apnoe_surface_mins clrf apnoe_secs clrf apnoe_mins ; reset descent time movlw .0 movff WREG,max_pressure+0 movff WREG,max_pressure+1 ; reset max. depth bcf FLAG_active_descent ; clear flag return global apnoe_calc_maxdepth apnoe_calc_maxdepth: movff apnoe_max_pressure+0,sub_a+0 movff apnoe_max_pressure+1,sub_a+1 movff max_pressure+0,sub_b+0 movff max_pressure+1,sub_b+1 call subU16 ; sub_c = sub_a - sub_b ; apnoe_max_pressure < max_pressure -> neg_flag=1 ; max_pressure <= apnoe_max_pressure -> neg_flag=0 btfss neg_flag return ;apnoe_max_pressure<max_pressure movff max_pressure+0,apnoe_max_pressure+0 movff max_pressure+1,apnoe_max_pressure+1 return ; -------------------------------------------------------------------------------------- calc_deco_divemode: btfss FLAG_gauge_mode ; in gauge mode? rcall calc_deko_engine ; NO - do deco calculations ; Increment the time accumulators used for calculating the average depths. ; This done here and not in the ISR to guarantee synchronism between time ; and depth accumulator incrementing. infsnz average_divesecs+0,F incf average_divesecs+1,F infsnz average_divesecs_total+0,F incf average_divesecs_total+1,F btg onesectoggle ; toggle the one-second toggle bit btfss onesectoggle ; toggle bit set? bra calc_deko_divemode2 ; NO ;bra calc_deko_divemode1 ; YES calc_deko_divemode1: ; every-2-seconds tasks, 1st phase ; call TFT_debug_output ; optional debug output btfsc FLAG_gauge_mode ; in gauge mode? return ; YES - done goto check_gas_best ; NO - checks if a better gas should be selected (by user) and return calc_deko_divemode2: ; every-2-seconds tasks, 2nd phase call calc_average_depth ; calculate average depth call calc_velocity ; calculate vertical velocity and display if > threshold (every two seconds) goto set_reset_safety_stop ; set/reset flags for safety stop and return calc_deko_engine: btfsc FLAG_ccr_mode ; in CCR mode? call check_dive_autosp ; YES - check for Auto-SP btfsc FLAG_ccr_mode ; in CCR mode? rcall calc_deko_divemode_sensor ; YES - do sensor data acquisition if applicable by OSTC model btfsc FLAG_pscr_mode ; in pSCR mode? rcall calc_deko_divemode_sensor ; YES - do sensor data acquisition if applicable by OSTC model ; check deco engine state and switch between normal and alternative plan calculations ; ; Remark: Any reconfigurations done here do only affect the ascent & deco calculation settings, ; not the settings for the calculations done on the real tissues. The later ones are only ; altered in case of a gas change, or in case of a real bailout or switchback to setpoint ; or sensor, respectively. ; In case of a gas change or real bailout/switchback, the settings for the deco calculations ; are also changed to match the settings for the real tissues. This is done on signal through ; 'divemode_gaschange' and will also leave the deco engine status in state as if having done ; the alternative plan last. ; get working copies of char_O_main_status and char_O_deco_status movff char_O_main_status,hi ; get char_O_main_status into hi movff char_O_deco_status,lo ; get char_O_deco_status into lo ; check state of deco calculations btfsc hi,DECO_COMPLETED_NORM ; finished calculations for normal plan? bra calc_deko_engine_alt ; YES - do an alternative plan next (or a normal one with more features enabled) btfsc hi,DECO_COMPLETED_ALT ; finished calculations for alternative plan? bra calc_deko_engine_norm ; YES - do a normal plan next bra calc_deko_engine_cont ; NO to both - continue calculations / do first invocation in INIT mode calc_deko_engine_norm: ; Last cycle did an alternative plan, or the deco engine has been restarted because of a gas change etc. ; --> Reconfigure to normal plan for next computation cycle. bcf lo,DECO_PLAN_FLAG ; clear flag for alternative plan to do a normal plan next bcf lo,DECO_ASCENT_FLAG ; clear flag for delayed ascent calculation bcf lo,DECO_VOLUME_FLAG ; clear flag for gas needs calculation bcf lo,DECO_BAILOUT_FLAG ; clear flag for bailout mode IFDEF _cave_mode bcf hi,DECO_CAVE_MODE ; clear flag for cave mode ENDIF btfsc FLAG_ccr_mode ; in CCR mode? bra calc_deko_engine_norm_loop ; YES - reload diluents and reconfigure CCR mode if not in bailout btfsc FLAG_pscr_mode ; in pSCR mode? bra calc_deko_engine_norm_loop ; YES - reload diluents and reconfigure pSCR mode if not in bailout ;bra calc_deko_engine_norm_OC ; neither in CCR nor pSCR mode, so reload OC gases and reconfigure OC mode ; (first cycle omits gas needs calculation for faster first deco results) calc_deko_engine_norm_OC: movff active_gas,WREG ; get current OC gas call deco_setup_oc_gases_pre ; set up deco calculations in OC mode with OC gases bra calc_deko_engine_start ; start deco engine calc_deko_engine_norm_loop: ; switch to loop calculation if not in a real bailout situation btfsc FLAG_bailout_mode ; check if a real bailout situation is present bra calc_deko_engine_norm_OC ; YES - revert to OC mode ; NO - switch to loop calculation: movff active_dil,WREG ; - get current diluent call deco_setup_cc_diluents_pre ; - set up deco calculations in CCR/pSCR mode with diluents bra calc_deko_engine_start ; - start deco engine calc_deko_engine_alt: ; A normal plan was computed in the last cycle. For the next calculation cycle the mode may be switched ; to alternative plan, or stay in normal plan but with certain features enabled... bcf lo,DECO_ASCENT_FLAG ; clear flag for delayed ascent calculation bcf lo,DECO_VOLUME_FLAG ; clear flag for gas needs calculation bcf lo,DECO_BAILOUT_FLAG ; clear flag for bailout mode IFDEF _cave_mode bcf hi,DECO_CAVE_MODE ; clear flag for cave mode ENDIF btfsc FLAG_bailout_mode ; check if a real bailout situation is present bra calc_deko_engine_alt_1 ; YES - stay in normal plan mode and preclude delayed ascent calculation TSTOSS char_I_extra_time ; NO - check if a delayed ascent is enabled bra calc_deko_engine_alt_1 ; NO - stay in normal plan mode and preclude delayed ascent calculation bsf lo,DECO_PLAN_FLAG ; YES - set flag for alternative plan bsf lo,DECO_ASCENT_FLAG ; - set flag for delayed ascent calc_deko_engine_alt_1: TSTOSS opt_calc_asc_gasvolume ; check if gas volume calculation is enabled bra calc_deko_engine_start ; NO - no volume calculation, no simulated bailout plan in this case bsf lo,DECO_VOLUME_FLAG ; YES - set gas needs calculation flag btfsc FLAG_bailout_mode ; check if a real bailout situation is present bra calc_deko_engine_start ; YES - normal plan already does bailout (OC) calculation "for real" IFDEF _cave_mode bsf hi,DECO_CAVE_MODE ; activate cave mode by default btfss FLAG_cave_mode ; cave mode switched on? bcf hi,DECO_CAVE_MODE ; NO - deactivate p2deco cave mode again btfsc FLAG_dive_turned ; dive turned? bcf hi,DECO_CAVE_MODE ; YES - deactivate p2deco cave mode again btfsc FLAG_cave_mode_shutdown ; cave mode function shut down? bcf hi,DECO_CAVE_MODE ; YES - deactivate p2deco cave mode again ENDIF btfss lo,DECO_MODE_LOOP_FLAG ; NO - has a loop mode calculation been done during the normal plan? bra calc_deko_engine_start ; NO - when not in loop mode, no simulated bailout to be done decf best_gas_number,W ; YES - get best gas number -1 into WREG. If not available, WREG will be 255 now. If not computed yet, WREG will be 254 now. btfsc WREG,7 ; - WREG < 128 (a bailout gas is available)? bra calc_deko_engine_alt_2 ; NO - no simulated bailout possible because no bailout gas available to switch to bsf lo,DECO_PLAN_FLAG ; YES - set flag for alternative plan bsf lo,DECO_BAILOUT_FLAG ; - set bailout mode flag (enables gas changes before 1st stop) movf best_gas_number,W ; - put number of best gas into WREG call deco_setup_oc_gases_pre ; - set up deco calculations in OC mode with OC gases bra calc_deko_engine_start ; - start in alternative plan mode calc_deko_engine_alt_2: bcf lo,DECO_PLAN_FLAG ; clear flag for alternative plan bcf lo,DECO_ASCENT_FLAG ; clear flag for delayed ascent calculation bcf lo,DECO_VOLUME_FLAG ; clear flag for gas needs calculation IFDEF _cave_mode bcf hi,DECO_CAVE_MODE ; clear flag for cave mode ENDIF call inval_alternative_plan_data ; invalidate all alternative (bailout) plan data because they are not applicable any more calc_deko_engine_start: IFDEF _cave_mode movff hi,char_O_main_status ; write-back char_O_main_status to deco engine interface ENDIF movff lo,char_O_deco_status ; write-back char_O_deco_status to deco engine interface calc_deko_engine_cont: SAFE_2BYTE_COPY amb_pressure,int_I_pres_respiration ; transfer ambient pressure to deco engine clrf TMR5L ; restart timer used to preempt stops calculation clrf TMR5H ; call deco_calc_hauptroutine ; invoke the deco engine (p2_deco.c) banksel common ; check if display shall be updated due to deco engine restart btfsc FLAG_TFT_display_ndl_or_deko; shall update immediately? bra calc_deko_engine_update ; YES ; check if new calculation results for normal plan mode are available movff char_O_main_status,WREG ; get deco status of deco engine btfss WREG,DECO_COMPLETED_NORM ; new calculation results for normal plan available? return ; NO - done calc_deko_engine_update: bcf FLAG_TFT_display_ndl_or_deko; YES - reset flag for immediate update movff char_O_deco_info,WREG ; - get deco info vector btfsc WREG,deco_ceiling ; - ceiling depth > 0 ? bra calc_deko_engine_update_deco; YES - in deco ;bra calc_deko_engine_update_NDL ; NO - within NDL calc_deko_engine_update_NDL: ; within NDL btfsc decostop_active ; been in deco mode before? bsf FLAG_TFT_display_ndl_mask ; YES - clear deco data, display NDL time bsf FLAG_TFT_display_ndl ; display NDL time bcf decostop_active ; clear flag for been in deco mode before return calc_deko_engine_update_deco: ; in deco btfss decostop_active ; already been in deco mode before? bsf FLAG_TFT_display_deko_mask ; NO - clear NDL time, display deco data bsf FLAG_TFT_display_deko ; display deco data bsf FLAG_TFT_display_tts ; display TTS bsf decostop_active ; set flag for being in deco mode return ; -------------------------------------------------------------------------------------- global calc_deko_divemode_sensor calc_deko_divemode_sensor: ; sensor acquisition code btfss s8_digital ; check if we have a digital interface to the sensors bra calc_deko_divemode_sensor_analog ; NO - check if we have an analog interface btfss new_s8_data_available ; YES - check if a new data frame was received bra calc_deko_divemode_sensor_common ; NO - use old values call compute_mvolts_for_all_sensors ; YES - compute mV values from digital data bra calc_deko_divemode_sensor_common calc_deko_divemode_sensor_analog: btfss analog_o2_input ; do we have an analog input? bra calc_deko_divemode_sensor_opt ; NO - check if we have an optical interface call get_analog_inputs ; YES - get the analog voltages and continue with the common part bra calc_deko_divemode_sensor_common calc_deko_divemode_sensor_opt: btfss optical_input ; do we have an optical input? return ; NO - return (we have no sensors at all: not analog, not S8 and not optical) btfss sensor1_active ; YES - o2_ppo2_sensor1, o2_ppo2_sensor2 and o2_ppo2_sensor3 are already filled in ISR bcf use_O2_sensor1 ; check HUD status data and eventually clear use_O2_sensorX btfss sensor2_active bcf use_O2_sensor2 btfss sensor3_active bcf use_O2_sensor3 bra calc_deko_divemode_sensor_A ; continue with calculating sensor average calc_deko_divemode_sensor_common: ; Check each sensor if it is calibrated and if its mV value is within min_mv and max_mv limits. ; If ok: compute o2_ppo2_sensorX = o2_mv_sensorX * opt_x_sX / 1000 ; If not ok: reset o2_ppo2_sensorX, reset use_O2_sensorX and show the customview 1 in case the sensor was ok before ; check sensor 1 btfss sensor1_calibrated_ok ; check if sensor is usable at all bra check_sensor_1_fail ; NO - handle it as failed ; check min threshold movff o2_mv_sensor1+0,sub_a+0 ; load sensor mV value movff o2_mv_sensor1+1,sub_a+1 rcall check_min_threshold btfsc neg_flag ; check if result is negative, i.e. sensor_mv < min_mv bra check_sensor_1_fail ; YES - declare sensor as failed ; check max_threshold rcall check_max_threshold btfss neg_flag ; check if result is negative, i.e. sensor_mv < max_mv bra check_sensor_1_fail ; NO - declare sensor as failed ; check HUD data, if available btfss hud_connection_ok ; check if there is a HUD connected bra check_sensor_1_ok ; NO - all checks done then and positive btfss sensor1_active ; YES - HUD status ok? bra check_sensor_1_fail ; NO - HUD reports a fail check_sensor_1_ok: ; o2_ppo2_sensor1 = o2_mv_sensor1:2 * opt_x_s1:2 / 1000 movff o2_mv_sensor1+0,xA+0 movff o2_mv_sensor1+1,xA+1 movff opt_x_s1+0,xB+0 movff opt_x_s1+1,xB+1 rcall compute_ppo2_helper movff xC+0,o2_ppo2_sensor1 ; result in 0.01 bar bra check_sensor_2 ; continue with next sensor check_sensor_1_fail: clrf WREG movff WREG,o2_ppo2_sensor1 ; set ppO2 reading to zero btfss use_O2_sensor1 ; check if sensor was in use before bra check_sensor_1_fail_1 ; NO - no new news then call check_sensor_custview_helper; YES - show customview 1 (sensor values) on further conditions met check_sensor_1_fail_1: bcf use_O2_sensor1 ; revoke sensor from usage check_sensor_2: ; check min_mv of sensor 2 btfss sensor2_calibrated_ok ; check if sensor is usable at all bra check_sensor_2_fail ; NO - handle it as failed ; check min threshold movff o2_mv_sensor2+0,sub_a+0 ; load sensor mV value movff o2_mv_sensor2+1,sub_a+1 rcall check_min_threshold btfsc neg_flag ; check if result is negative, i.e. sensor_mv < min_mv bra check_sensor_2_fail ; YES - declare sensor as failed ; check max_threshold rcall check_max_threshold btfss neg_flag ; check if result is nagative, i.e. sensor_mv < max_mv bra check_sensor_2_fail ; NO - declare sensor as failed ; check HUD data, if available btfss hud_connection_ok ; check if there is a HUD connected bra check_sensor_2_ok ; NO - all checks done then and positive btfss sensor2_active ; YES - HUD status ok? bra check_sensor_2_fail ; NO - HUD reports a fail check_sensor_2_ok: ; o2_ppo2_sensor2 = o2_mv_sensor2:2 * opt_x_s2:2 / 1000 movff o2_mv_sensor2+0,xA+0 movff o2_mv_sensor2+1,xA+1 movff opt_x_s2+0,xB+0 movff opt_x_s2+1,xB+1 rcall compute_ppo2_helper movff xC+0,o2_ppo2_sensor2 ; result in 0.01 bar bra check_sensor_3 ; continue with next sensor check_sensor_2_fail: clrf WREG movff WREG,o2_ppo2_sensor2 ; set ppO2 reading to zero btfss use_O2_sensor2 ; check if sensor was in use before bra check_sensor_2_fail_1 ; NO - no new news then call check_sensor_custview_helper; YES - show customview 1 (sensor values) on further conditions met check_sensor_2_fail_1: bcf use_O2_sensor2 ; revoke sensor from usage check_sensor_3: ; check min_mv of sensor 2 btfss sensor3_calibrated_ok ; check if sensor is usable at all bra check_sensor_3_fail ; NO - handle it as failed ; check min threshold movff o2_mv_sensor3+0,sub_a+0 ; load sensor mV value movff o2_mv_sensor3+1,sub_a+1 rcall check_min_threshold btfsc neg_flag ; check if result is negative, i.e. sensor_mv < min_mv bra check_sensor_3_fail ; YES - declare sensor as failed ; check max threshold rcall check_max_threshold btfss neg_flag ; check if result is negative, i.e. sensor_mv < max_mv bra check_sensor_3_fail ; NO - declare sensor as failed ; check HUD data, if available btfss hud_connection_ok ; check if there is a HUD connected bra check_sensor_3_ok ; NO - all checks done then and positive btfss sensor3_active ; YES - HUD status ok? bra check_sensor_3_fail ; NO - HUD reports a fail check_sensor_3_ok: ; o2_ppo2_sensor3 = o2_mv_sensor3:2 * opt_x_s1:2 / 1000 movff o2_mv_sensor3+0,xA+0 movff o2_mv_sensor3+1,xA+1 movff opt_x_s3+0,xB+0 movff opt_x_s3+1,xB+1 rcall compute_ppo2_helper movff xC+0,o2_ppo2_sensor3 ; result in 0.01 bar bra calc_deko_divemode_sensor_A ; continue with calculating sensor average check_sensor_3_fail: clrf WREG movff WREG,o2_ppo2_sensor3 ; set ppO2 reading to zero btfss use_O2_sensor3 ; check if sensor was in use before bra check_sensor_3_fail_1 ; NO - no new news then call check_sensor_custview_helper; YES - show custom view 1 (sensor values) on further conditions met check_sensor_3_fail_1: bcf use_O2_sensor3 ; revoke sensor from usage calc_deko_divemode_sensor_A: ; calculate sensor average ; exit here if not in dive mode btfss divemode return ; compute sensor_setpoint = average of all o2_ppo2_sensorX of those sensors that have use_O2_sensorX == true ; sum up sensor values (in xA:2) and active sensors in (xB:2) clrf xB+0 clrf xB+1 clrf xA+0 clrf xA+1 divemode_setup_sensor_1_value: btfss use_O2_sensor1 ; sensor1 active? bra divemode_setup_sensor_2_value ; NO movf o2_ppo2_sensor1,W addwf xA+0,F movlw .0 addwfc xA+1,F ; add into xA:2 incf xB+0,F ; add a sensor divemode_setup_sensor_2_value: btfss use_O2_sensor2 ; sensor2 active? bra divemode_setup_sensor_3_value ; NO movf o2_ppo2_sensor2,W addwf xA+0,F movlw .0 addwfc xA+1,F ; add into xA:2 incf xB+0,F ; add a sensor divemode_setup_sensor_3_value: btfss use_O2_sensor3 ; sensor3 active? bra divemode_setup_sensor_mean ; NO movf o2_ppo2_sensor3,W addwf xA+0,F movlw .0 addwfc xA+1,F ; add into xA:2 incf xB+0,F ; add a sensor ; divide sum of sensor values by number of active sensors found divemode_setup_sensor_mean: clrf xC+0 ; set zero as default result tstfsz xB+0 ; pending div/0 ? call div16x16 ; NO - execute xC = xA / xB = summed ppO2 / number of sensors movff xC+0,sensor_setpoint ; copy result (or its default) ; set default value for pSCR mode: 0 => let p2_deco.c compute the ppO2 based on current dil gas and depth ; will be overwritten later in case we are in sensor mode and have at least one usable sensor clrf WREG ; preload a zero btfsc FLAG_pscr_mode ; check if we are in pSCR mode movff WREG,char_I_const_ppO2 ; YES - write 0 to char_I_const_ppo2, ; it will be overwritten if we have a usable sensor reading btfsc FLAG_bailout_mode ; check if we are in bailout bra calc_deko_divemode_sensor_V ; YES - no sensor data transfer to char_I_const_ppO2 in this case movff opt_ccr_mode,WREG ; NO - get mode (0: Fixed SP, 1: Sensor, 2: Auto SP) sublw .1 ; - in sensor mode? bnz calc_deko_divemode_sensor_V ; NO - not in sensor mode - no transfer of sensor data to char_I_const_ppO2 tstfsz xB+0 ; YES - check if we have found at least one usable sensor bra divemode_setup_sensor_mean1 ; YES - we have at least one usable sensor bsf setpoint_fallback ; NO - we have NO usable sensors -> initiate fallback btfss FLAG_ccr_mode ; - check if we are in CCR mode bra calc_deko_divemode_sensor_V ; NO - continue with voting logic flags movff char_I_setpoint_cbar+0,char_I_const_ppO2; YES - select fixed setpoint no. 1 for fallback bra calc_deko_divemode_sensor_V ; - continue with voting logic flags ; we have at least one usable sensor with a ppO2 value > 0 divemode_setup_sensor_mean1: bcf setpoint_fallback ; clear fallback condition movff sensor_setpoint,char_I_const_ppO2 ; transfer average sensor value to p2_deco.c code ; vote sensors calc_deko_divemode_sensor_V: bsf voting_logic_sensor1 movff o2_ppo2_sensor1,lo rcall check_sensor_voting_helper tstfsz WREG ; sensor within range (WREG = 0)? bcf voting_logic_sensor1 ; NO - vote out this sensor bsf voting_logic_sensor2 movff o2_ppo2_sensor2,lo rcall check_sensor_voting_helper tstfsz WREG ; sensor within range (WREG = 0)? bcf voting_logic_sensor2 ; NO - vote out this sensor bsf voting_logic_sensor3 movff o2_ppo2_sensor3,lo rcall check_sensor_voting_helper tstfsz WREG ; sensor within range (WREG = 0)? bcf voting_logic_sensor3 ; NO - vote out this sensor ; check if a warning shall be issued on sensor disagreement btfsc FLAG_ccr_mode ; check if we are in CCR mode bra check_warn_sensor_0 ; YES - continue with further checks btfsc FLAG_pscr_mode ; check if we are in pSCR mode bra check_warn_sensor_0 ; YES - continue with further checks bra check_warn_sensor_done ; not in CCR and not in pSCR, so no warning check_warn_sensor_0: ; we are in CCR or pSCR mode btfsc FLAG_bailout_mode ; check if we are in bailout bra check_warn_sensor_done ; YES - no warning in this case movff opt_ccr_mode,WREG ; get mode (0: Fixed SP, 1: Sensor, 2: Auto SP) sublw .1 ; in sensor mode? bnz check_warn_sensor_done ; NO - not in sensor mode - no warning in this case ; check sensor 1 check_warn_sensor_1: btfss sensor1_calibrated_ok ; check if sensor has a valid calibration bra check_warn_sensor_2 ; NO - sensor can not cause a warning then btfss use_O2_sensor1 ; YES - check if sensor is in use bra check_warn_sensor_2 ; NO - sensor can not cause a warning then btfsc voting_logic_sensor1 ; YES - check if sensor value is within agreement range bra check_warn_sensor_2 ; YES - continue with next sensor bcf sensors_agree ; NO - issue a warning return ; check sensor 2 check_warn_sensor_2: btfss sensor2_calibrated_ok ; check if sensor has a valid calibration bra check_warn_sensor_3 ; NO - sensor can not cause a warning then btfss use_O2_sensor2 ; YES - check if sensor is in use bra check_warn_sensor_3 ; NO - sensor can not cause a warning then btfsc voting_logic_sensor2 ; YES - check if sensor value is within agreement range bra check_warn_sensor_3 ; YES - continue with next sensor bcf sensors_agree ; NO - issue a warning return ; check sensor 3 check_warn_sensor_3: btfss sensor3_calibrated_ok ; check if sensor has a valid calibration bra check_warn_sensor_agree ; NO - sensor can not cause a warning then btfss use_O2_sensor3 ; YES - check if sensor is in use bra check_warn_sensor_agree ; NO - sensor can not cause a warning then btfsc voting_logic_sensor3 ; YES - check if sensor value is within agreement range bra check_warn_sensor_agree ; YES - continue with next sensor bcf sensors_agree ; NO - issue a warning return ; no need for a warning check_warn_sensor_done: check_warn_sensor_agree: bsf sensors_agree return check_min_threshold: movlw LOW min_mv ; load minimum mV value movwf sub_b+0 movlw HIGH min_mv movwf sub_b+1 goto sub16 ; sub_c = sensor_mv - min_mv (and return) check_max_threshold: movlw LOW max_mv movwf sub_b+0 movlw HIGH max_mv movwf sub_b+1 goto sub16 ; sub_c = sensor_mv - max_mv (and return) compute_ppo2_helper: call mult16x16 ; xA:2*xB:2=xC:4 movlw LOW .1000 movwf xB+0 movlw HIGH .1000 movwf xB+1 call div32x16 ; xC:4 / xB:2 = xC+3:xC+2 with xC+1:xC+0 as remainder movlw d'1' addwf xC+0,W ; we are just interested in the carry flag movlw d'0' addwfc xC+1,W ; we are still just interested in the carry flag tstfsz WREG ; ppO2 is higher than 2.55bar? setf xC+0 ; YES return check_sensor_custview_helper: btfss divemode ; check if we are in dive mode return ; NO - not in dive mode, return movff opt_ccr_mode,WREG ; YES - =0: Fixed SP, =1: Sensor, =2: Auto SP decfsz WREG,W ; - opt_ccr_mode = 1 (sensors)? return ; NO - not using the sensors in the moment btfsc alternative_divelayout ; YES - in alternative layout? call switch_layout_to_normal ; YES - switch to normal layout movlw index_ppo2_sensors-1 ; custom view number one below ppO2 sensors movwf menupos3 ; set custom view number bsf toggle_customview ; initiate toggle to desired custom view -> ppO2 sensors return check_sensor_voting_helper: movf lo,W cpfsgt sensor_setpoint bra check_sensor_voting_helper2 ; lo < sensor_setpoint ; lo > sensor_setpoint movf lo,W subwf sensor_setpoint,W movwf lo check_sensor_voting_helper1: movlw sensor_voting_logic_threshold ; threshold in 0.01 bar cpfsgt lo retlw .0 ; within range retlw .1 ; out of range check_sensor_voting_helper2: ; lo < sensor_setpoint movf sensor_setpoint,W subwf lo,F bra check_sensor_voting_helper1 ;----------------------------------------------------------------------------- divemodemode_togglegf: ; toggle aGF/GF bcf toggle_gf ; clear command flag btg use_agf ; toggle status flag for GF btfsc use_agf ; aGF activated? bra divemodemode_togglegf_1 ; YES - branch to using aGF movff opt_GF_low,char_I_GF_Low_percentage ; NO - use normal GF factors movff opt_GF_high,char_I_GF_High_percentage ; - bra divemodemode_togglegf_2 ; - continue with common part divemodemode_togglegf_1: movff opt_aGF_low,char_I_GF_Low_percentage ; YES - use alternative GF factors movff opt_aGF_high,char_I_GF_High_percentage ; - divemodemode_togglegf_2: call TFT_gf_factors_mask ; update custom view mask to show which one is in use ; the custom view itself has been called from divemenu_tree before goto restart_deco_engine ; ...and return IFDEF _cave_mode divemodemode_toggleturn: bcf toggle_turn_dive ; clear command flag btg FLAG_dive_turned ; toggle dive turned state btfsc FLAG_cave_mode_shutdown ; cave mode function shut down? bsf FLAG_dive_turned ; YES - allow only activating turned state goto set_logbook_marker ; set a logbook marker (and return) ENDIF calc_velocity: ; called every two seconds btfsc display_velocity bra calc_velocity1 ; always update if already displayed btfss divemode2 return ; display velocity only if deeper then 1m (Not at the surface after the dive) calc_velocity1: SAFE_2BYTE_COPY amb_pressure, sub_a movff last_pressure_velocity+0,sub_b+0 movff last_pressure_velocity+1,sub_b+1 movff sub_a+0,last_pressure_velocity+0 ; store old value for velocity movff sub_a+1,last_pressure_velocity+1 call subU16 ; sub_c = amb_pressure - last_pressure bcf neg_flag_velocity btfsc neg_flag bsf neg_flag_velocity movff sub_c+0,xA+0 movff sub_c+1,xA+1 movlw d'39' ; 77 when called every second.... movwf xB+0 clrf xB+1 call mult16x16 ; differential pressure in mbar*77... movff xC+0,divA+0 movff xC+1,divA+1 movlw d'7' call div16 ; divA = divA / 2^WREG, divide by 2^7 equals velocity in m/min movlw d'99' cpfsgt divA+0 ; velocity > 99 m/min ? bra calc_velocity3 ; NO movwf divA+0 ; YES - set divA = 99 calc_velocity3: ; Copy old speeds movff old_velocity+2,old_velocity+3 movff old_velocity+1,old_velocity+2 movff old_velocity+0,old_velocity+1 movff divA+0,old_velocity+0 ; movff old_velocity+3,WREG ; addwf divA+0,F ; add old speed ; bcf STATUS,C ; rrcf divA+0,F ; /2 ; movff old_velocity+2,WREG ; addwf divA+0,F ; add old speed ; bcf STATUS,C ; rrcf divA+0,F ; /2 ; movff old_velocity+1,WREG ; addwf divA+0,F ; add old speed ; bcf STATUS,C ; rrcf divA+0,F ; /2 ; movff old_velocity+0,WREG ; addwf divA+0,F ; add old speed ; bcf STATUS,C ; rrcf divA+0,F ; /2 goto TFT_display_velocity ; with divA+0 = m/min..., and return... ;============================================================================= set_reset_safety_stop: ; set flags for safety stop and/or reset safety stop TSTOSS opt_enable_safetystop ; safety stop enabled? (=1: show safety stop) bra delete_safety_stop ; NO - don't show safety stop btfsc decostop_active ; is a deco stop displayed? bra delete_safety_stop ; YES - don't show safety stop ; Below "opt_safety_stop_reset"? if yes, set flag and reset count-down timer SAFE_2BYTE_COPY rel_pressure, lo call adjust_depth_with_salinity ; computes salinity setting into lo:hi [mbar] movff lo,sub_a+0 movff hi,sub_a+1 movff opt_safety_stop_reset,WREG ; [cbar] mullw .10 ; mbar in PRODL:H movff PRODL,sub_b+0 movff PRODH,sub_b+1 call subU16 ; sub_c = sub_a - sub_b btfss neg_flag bra reset_safety_stop ; below 10m, reset safety stop ; Above "opt_safety_stop_end"? if yes ,clear flag movff opt_safety_stop_end,WREG ; [cbar] mullw .10 ; mbar in PRODL:H movff PRODL,sub_b+0 ; sub_a is still loaded with adjusted rel_pressure movff PRODH,sub_b+1 call subU16 ; sub_c = sub_a - sub_b btfsc neg_flag bra delete_safety_stop ; above 3m, remove safety stop ; Above "opt_safety_stop_start"? if yes, activate safety stop movff opt_safety_stop_start,WREG ; [cbar] mullw .10 ; mbar in PRODL:H movff PRODL,sub_b+0 ; sub_a is still loaded with adjusted rel_pressure movff PRODH,sub_b+1 call subU16 ; sub_c = sub_a - sub_b btfsc neg_flag bra acivate_safety_stop ; above 5m, activate safety stop bra reset_safety_stop2 ; pause safety stop acivate_safety_stop: tstfsz safety_stop_countdown ; countdown at zero? bsf show_safety_stop ; NO - set flag return delete_safety_stop: clrf safety_stop_countdown ; reset timer bra reset_safety_stop2 ; remove safety stop from display reset_safety_stop: movff opt_safety_stop_length,safety_stop_countdown ; reset timer reset_safety_stop2: bcf show_safety_stop ; clear flag btfss safety_stop_active ; safety stop shown? return ; NO - don't delete it bcf safety_stop_active ; clear flag bsf FLAG_TFT_clear_safety_stop ; Clear safety stop return ;============================================================================= timeout_menuview: decfsz timeout_counter2,F ; timeout for menu view? return ; NO - done ; Timeout, clear e.g. "Menu?" goto menuview_toggle_reset ; ...and return timeout_divemode_menu: decfsz timeout_counter2,F ; timeout for divemode menu return global timeout_divemode_menu2 timeout_divemode_menu2: ; called from divemenu_tree.asm bcf divemode_menu ; timeout, clear flag call TFT_clear_divemode_menu ; clear menu bsf FLAG_TFT_active_gas_divemode; redraw gas/setpoint/diluent bcf blinking_better_gas ; clear flag to have temperature updated once bcf blinking_better_dil ; clear flag to have temperature updated once bsf FLAG_TFT_temp_divemode ; display temperature call TFT_draw_gassep_line ; gas separator grid in spec mode only btfss decostop_active ; in deco mode ? bra timeout_divemode_menu_ndl ; NO - show NDL again ; Show deco data bsf FLAG_TFT_display_deko_mask bsf FLAG_TFT_display_deko bsf FLAG_TFT_display_tts return timeout_divemode_menu_ndl: ; Show NDL bsf FLAG_TFT_display_ndl_mask bsf FLAG_TFT_display_ndl return timeout_divemode: btfsc divemode_menu ; divemode menu active? rcall timeout_divemode_menu ; YES - check the timeout for it... btfsc menuview ; is a menu view shown? rcall timeout_menuview ; YES - check the timeout for it... btfss realdive ; dive longer than one minute? return ; NO - done btfsc FLAG_apnoe_mode ; in apnoe mode? bra timeout_divemode2 ; YES - use apnoe_timeout [min] for timeout IFNDEF __DEBUG btfsc simulatormode_active ; in simulator mode? bra timeout_divemode3 ; YES - use simulator timeout ENDIF bcf divemode ; terminate divemode my default infsnz timeout_counter1+0,F ; increment timeout counter incf timeout_counter1+1,F ; timeout is 16 bit counter movff opt_diveTimeout,WREG ; get timeout in minutes mullw .60 ; convert into seconds movff PRODL,sub_a+0 movff PRODH,sub_a+1 movff timeout_counter1+0,sub_b+0 movff timeout_counter1+1,sub_b+1 call subU16 ; sub_c = sub_a - sub_b btfss neg_flag ; result negative, i.e. timeout? bsf divemode ; NO - set divemode flag again return timeout_divemode2: incf timeout_counter1+0,F ; seconds... movlw d'60' cpfseq timeout_counter1+0 ; timeout_counter1+0 = 60 ? return ; No ; one minute timeout done clrf timeout_counter1+0 bcf divemode incf apnoe_timeout_counter,F movlw apnoe_timeout ; apnoe timeout [min] cpfseq apnoe_timeout_counter bsf divemode return timeout_divemode3: bcf divemode incf timeout_counter1+0,F movlw simulator_timeout ; simulator timeout cpfsgt timeout_counter1+0 bsf divemode return update_divemode60: ; update any minute call get_battery_voltage ; gets battery voltage rcall set_powersafe ; check if battery low ;call customview_minute ; do every-minute tasks for the custom view area bcf oneminupdate IFDEF _cave_mode movlw .1 ; prepare to add backtrack data for 1 minute btfsc FLAG_cave_mode ; cave mode enabled? rcall update_backtrack ; YES - make it so ENDIF btfss simulatormode_active ; in simulator mode? return ; NO - done movlw .20 ; YES - quite dive mode simulation after 21 * 256 sec = 89 min : 36 sec cpfsgt total_divetime_seconds+1 ; timeout? return ; NO - done IFDEF __DEBUG return ; YES - but no timeout in debug mode ENDIF bra divemode_option1 ; YES - set depth to 0 m and "return" IFDEF _cave_mode update_backtrack: btfsc FLAG_dive_turned ; dive turned? return ; YES - done movwf lo ; store minutes to add in lo lfsr FSR1,char_I_backtrack_depth ; load FSR1 with base address of backtrack storage movff char_I_backtrack_time,FSR1L ; adjust FSR1 to last index update_backtrack_loop: btfsc FLAG_cave_mode_shutdown ; backtrack storage full? return ; YES - done movff curr_depth,PREINC1 ; NO - increment index and write current depth to backtrack storage incfsz FSR1L,W ; - did a wrap-around of the index occur (backtrack storage full)? bra update_backtrack_loop_1 ; NO - continue loop bsf FLAG_cave_mode_shutdown ; YES - flag backtrack storage as being full return update_backtrack_loop_1: decfsz lo,F ; decrement loop counter, did it became zero? bra update_backtrack_loop ; NO - loop movff FSR1L,char_I_backtrack_time ; YES - read-back index return ; - done ENDIF set_max_depth: movff max_pressure+0,sub_a+0 movff max_pressure+1,sub_a+1 SAFE_2BYTE_COPY rel_pressure, sub_b call subU16 ; sub_c = sub_a - sub_b ; max_pressure < rel_pressure -> neg_flag=1 ; rel_pressure <= max_pressure -> neg_flag=0 btfss neg_flag return ; max_pressure < rel_pressure movff sub_b+0,max_pressure+0 movff sub_b+1,max_pressure+1 bsf FLAG_TFT_max_depth ; set flag return set_min_temp: movff minimum_temperature+0,sub_a+0 movff minimum_temperature+1,sub_a+1 SAFE_2BYTE_COPY temperature,sub_b call sub16 ; sub_c = sub_a - sub_b ; minimum_temperature < T -> neg_flag=1 ; T <= minimum_temperature -> neg_flag=0 btfsc neg_flag return ; minimum_temperature >= T movff sub_b+0,minimum_temperature+0 movff sub_b+1,minimum_temperature+1 return global set_dive_modes set_dive_modes: btfsc high_altitude_mode ; in high altitude (fly) mode? bra set_dive_modes3 ; YES set_dive_modes0: movlw LOW start_dive_threshold movwf sub_a+0 ; dive_treshold is in cm movlw HIGH start_dive_threshold movwf sub_a+1 ; dive_treshold is in cm set_dive_modes1: SAFE_2BYTE_COPY rel_pressure, sub_b call subU16 ; sub_c = sub_a - sub_b btfss neg_flag bra set_dive_modes2 ; too shallow (rel_pressure < dive_threshold) btfsc realdive ; dive longer than one minute? clrf timeout_counter1+0 ; YES - reset timeout counter bsf divemode ; (re-)set divemode flag bsf divemode2 ; displayed divetime is running return set_dive_modes2: bcf divemode2 ; stop time btfss realdive ; dive longer then one minute? bcf divemode ; NO - this was no real dive return ; YES - return set_dive_modes3: ; high-altitude mode btfsc realdive ; dive longer then one minute? bra set_dive_modes0 ; YES - this is a real dive -> Use start_dive_threshold or ascend movlw LOW high_altitude_dive_threshold movwf sub_a+0 movlw HIGH high_altitude_dive_threshold movwf sub_a+1 bra set_dive_modes1 set_powersafe: movlw color_code_battery_low+1; [%] cpfslt batt_percent return movlw d'7' ; type of alarm (battery Low) movwf AlarmType ; copy to alarm register bsf event_occured ; set event flag movlw .0 movff WREG,opt_brightness ; set brightness to ECO return ; return reset_average: bcf reset_average_depth ; clear reset-average flag clrf average_depth_hold+0 ; clear the depth accumulator clrf average_depth_hold+1 ; ... clrf average_depth_hold+2 ; ... clrf average_depth_hold+3 ; ... clrf average_divesecs+0 ; clear the time accumulator clrf average_divesecs+1 ; ... SAFE_2BYTE_COPY rel_pressure,avg_rel_pressure ; prime result with current rel.pressure/depth return calc_average_depth: ; 1. compute rel_pressure x 2, because this routine is called every 2nd second only SAFE_2BYTE_COPY rel_pressure,xB ; copy current rel pressure to xB bcf STATUS,C rlcf xB+0,F ; multiply rel pressure x 2 (via shift left) rlcf xB+1,F ; ... ; 2a add (rel_pressure x 2) to the resettable depth accumulator movf xB+0,W addwf average_depth_hold+0,F movf xB+1,W addwfc average_depth_hold+1,F movlw .0 addwfc average_depth_hold+2,F addwfc average_depth_hold+3,F ; will work up to 9999 mbar * 60 * 60 * 24 = 863913600 mbar (24h @ 90 m depth) ; 2b add (rel_pressure x 2) to the total depth accumulator movf xB+0,W addwf average_depth_hold_total+0,F movf xB+1,W addwfc average_depth_hold_total+1,F movlw .0 addwfc average_depth_hold_total+2,F addwfc average_depth_hold_total+3,F ; will work up to 9999 mbar * 60 * 60 * 24 = 863913600 mbar (24h @ 90 m depth) ; 3a compute avg_rel_pressure on base of average_divesecs:2 movff average_depth_hold+0,xC+0 movff average_depth_hold+1,xC+1 movff average_depth_hold+2,xC+2 movff average_depth_hold+3,xC+3 ; copy accumulated depth movff average_divesecs+0,xB+0 movff average_divesecs+1,xB+1 ; copy accumulated time call div32x16 ; xC:4 / xB:2 = xC+3:xC+2 with xC+1:xC+0 as remainder movff xC+0,avg_rel_pressure+0 movff xC+1,avg_rel_pressure+1 ; store result btfss divemode2 ; displayed divetime is running? return ; NO (e.g. too shallow) ; 3b compute avg_rel_pressure_total on base of average_divesecs_total:2 movff average_depth_hold_total+0,xC+0 movff average_depth_hold_total+1,xC+1 movff average_depth_hold_total+2,xC+2 movff average_depth_hold_total+3,xC+3 ; copy accumulated depth movff average_divesecs_total+0,xB+0 movff average_divesecs_total+1,xB+1 ; copy accumulated time call div32x16 ; xC:4 / xB:2 = xC+3:xC+2 with xC+1:xC+0 as remainder movff xC+0,avg_rel_pressure_total+0 movff xC+1,avg_rel_pressure_total+1 ; store result btfsc reset_average_depth ; reset the resettable average depth? rcall reset_average ; YES - reset the resettable average depth TSTOSS opt_2ndDepthDisp ; drawing avg depth instead of max depth? return ; NO - done bsf FLAG_TFT_max_depth ; YES - flag to update display return test_switches_divemode: ; checks switches in divemode btfsc divemode_menu ; divemode menu shown? bra test_switches_divemode_menu ; YES - use menu processor btfsc switch_left ; NO - left button pressed? goto menuview_toggle ; YES - menu or simulator tasks; and return... btfss switch_right ; NO - right button pressed? return ; NO - done tstfsz menupos2 ; YES - any option shown? bra test_switches_divemode1 ; YES - do option tasks bsf toggle_customview ; NO - toggle custom view return ; - done test_switches_divemode_menu: btfsc switch_left bra test_switches_divemode_menu2 ; move cursor btfsc switch_right ; left button pressed? bra test_switches_divemode_menu3 ; YES - enter submenu or do something return ; NO - done test_switches_divemode_menu1: clrf menupos1 test_switches_divemode_menu2: incf menupos1,F incf menupos4,W ; menupos4 + 1 -> WREG cpfslt menupos1 ; > menupos4 (set in menu_processor.asm)? bra test_switches_divemode_menu1 ; YES - set to 1 call TFT_divemode_menu_cursor ; update the cursor bcf switch_left movlw divemode_menu_timeout ; reload timeout movwf timeout_counter2 ; timeout for divemode menu return test_switches_divemode_menu3: ; enter submenu or do something bcf switch_right ; decf menupos1,F ; menu_processor needs 0-5... goto do_line_menu ; Warning! trashes STKPTR and returns to diveloop_loop4: test_switches_divemode1: bcf switch_right movlw divemode_menuview_timeout movwf timeout_counter2 ; reload timeout movff menupos2,WREG ; menupos2 holds number of customview/divemode menu function dcfsnz WREG,F bra divemode_option_gaschange ; switch to the the "better gas" / "better diluent" dcfsnz WREG,F bra divemode_option0 ; start/setup Divemode menu dcfsnz WREG,F bra divemode_option1 ; quit simulation? dcfsnz WREG,F bra divemode_option2 ; descent 1m dcfsnz WREG,F bra divemode_option3 ; ascend 1m dcfsnz WREG,F bra divemode_option4 ; quit Apnoe mode dcfsnz WREG,F bra divemode_option5 ; reset stopwatch (gauge mode only) dcfsnz WREG,F bra divemode_option6 ; +5mins simulation dcfsnz WREG,F bra divemode_option7 ; store heading dcfsnz WREG,F bra divemode_option8 ; switch to alternative layout return gas_switched_common: bcf divemode_gaschange ; clear flag btfss FLAG_back_to_loop ; check if it is a switchback from OC bailout to loop bra gas_switched_common0 ; NO - continue with checking if selected gas is valid bcf FLAG_back_to_loop ; YES - clear flag movff active_dil,menupos1 ; reload last diluent bra gas_switched_common1 ; continue with common part gas_switched_common0: tstfsz menupos1 ; menupos1 = 0 ? bra gas_switched_common1 ; NO - valid gas return ; YES - something went wrong, invalid gas, abort gas_switched_common1: movf menupos1,W ; get selected gas into WREG (1-6) btfsc FLAG_oc_mode ; in OC mode? bra gas_switched_common_OC ; YES btfsc FLAG_bailout_mode ; in bailout? bra gas_switched_common_OC ; YES gas_switched_common_loop: ; NO to both - must be loop mode then rcall setup_dil_registers ; with WREG = diluent 1-6 rcall deco_setup_cc_diluents ; with WREG = diluent 1-6 bra gas_switched_common3 gas_switched_common_OC: rcall setup_gas_registers ; with WREG = Gas 1-6 rcall deco_setup_oc_gases ; with WREG = Gas 1-6 gas_switched_common3: banksel int_O_breathed_ppO2 bcf int_O_breathed_ppO2+1,int_low_flag ; | clear all flags that control color-coding bcf int_O_breathed_ppO2+1,int_high_flag ; | to have the new gas initially displayed in bcf int_O_breathed_ppO2+1,int_attention_flag ; | memo color instead of a warning or attention bcf int_O_breathed_ppO2+1,int_warning_flag ; | color that belonged to the previous gas banksel common bsf FLAG_TFT_active_gas_divemode ; redraw gas/setpoint/diluent call restart_deco_engine_wo_ceiling ; abort any running deco calculations and restart the deco engine ; set flags for profile recording bsf event_occured ; set event flag btfsc FLAG_bailout_mode ; choose OC Bailouts (OC Gases) bsf bailoutgas_event ; bailout gas change btfss FLAG_bailout_mode ; choose OC Bailouts (OC Gases) bsf stored_gas_changed ; OC gas change return ; Code to pass all parameters to the C code global get_first_gas_to_WREG get_first_gas_to_WREG: ; gets first gas (1-5) into WREG lfsr FSR1,opt_gas_type ; point to gas types clrf lo ; start with gas 0 get_first_gas_to_WREG2: movf lo,W movf PLUSW1,W ; get type of gas #lo (0=Disabled, 1=First, 2=Travel, 3=Deco) sublw .1 ; it is = 1 (First Gas) bz get_first_gas_to_WREG3 ; found the first gas! incf lo,F ; ++ movlw NUM_GAS+1 cpfseq lo ; all done? bra get_first_gas_to_WREG2 ; NO - not yet ; no first gas found, use #1 movlw .1 ; coding of First gas movff WREG,opt_gas_type+0 ; set gas 1 to First return get_first_gas_to_WREG3: movf lo,W ; put into WREG incf WREG,W ; 0-4 -> 1-5 return ; done global get_first_dil_to_WREG get_first_dil_to_WREG: ; gets first dil (1-5) into WREG lfsr FSR1,opt_dil_type ; point to dil types clrf lo ; start with dil 0 get_first_dil_to_WREG2: movf lo,W movf PLUSW1,W ; get type of Dil #lo (0=Disabled, 1=First, 2=Normal) sublw .1 ; it is = 1 (First Dil) bz get_first_dil_to_WREG3 ; found the first dil! incf lo,F ; ++ movlw NUM_GAS+1 cpfseq lo ; all done? bra get_first_dil_to_WREG2 ; NO - not yet ; no first dil found, use #1 movlw .1 ; coding of First Dil movff WREG,opt_dil_type+0 ; set dil 1 to First return get_first_dil_to_WREG3: movf lo,W ; Put into WREG incf WREG,W ; 0-4 -> 1-5 return ; done deco_setup_oc_gases: ; with currently breathed gas in WREG (1-5 or 6) movff char_O_deco_status,lo ; working copy of char_O_deco_status in bank common deco_setup_oc_gases_pre: ; entry point with lo preloaded movff WREG,char_I_current_gas ; set gas to start with when doing the deco calculations ; ; Memory Map: ; --------------------------------------------------------------------------------- ; opt_gas_O2_ratio res NUM_GAS | char_I_deco_O2_ratio res NUM_GAS ; opt_dil_O2_ratio res NUM_GAS | ; opt_gas_He_ratio res NUM_GAS | char_I_deco_He_ratio res NUM_GAS ; opt_dil_He_ratio res NUM_GAS | ; opt_gas_type res NUM_GAS | char_I_deco_gas_type res NUM_GAS ; opt_dil_type res NUM_GAS | ; opt_gas_change res NUM_GAS | char_I_deco_gas_change res NUM_GAS ; opt_dil_change res NUM_GAS | ; lfsr FSR2,char_I_deco_O2_ratio ; Load FSR2 with base address of char_I_deco_O2_ratio. ; FSR2 will step through all char_I_deco_... vars. lfsr FSR1,opt_gas_O2_ratio ; load FSR1 with base address of opt_gas_O2_ratio rcall deco_setup_copy ; copy all OC O2 ratios lfsr FSR1,opt_gas_He_ratio ; load FSR1 with base address of opt_gas_He_ratio rcall deco_setup_copy ; copy all OC He ratios lfsr FSR1,opt_gas_type ; load FSR1 with base address of opt_gas_type rcall deco_setup_copy ; copy all gas types lfsr FSR1,opt_gas_change ; load FSR1 with base address of opt_gas_change rcall deco_setup_copy ; copy all gas change depths ; switch to oc mode bcf lo,DECO_MODE_PSCR_FLAG ; clear the pSCR-mode flag (may not be set, but never mind) bcf lo,DECO_MODE_LOOP_FLAG ; clear the loop/CCR-mode flag movff lo,char_O_deco_status ; bank safe write-back of char_O_deco_status return deco_setup_cc_diluents: ; with currently breathed diluent in WREG (1-5 or 6) movff char_O_deco_status,lo ; working copy of char_O_deco_status in bank common deco_setup_cc_diluents_pre: ; entry point with lo preloaded btfsc FLAG_bailout_mode ; check if in bailout condition | --------------- FOR SAFETY ONLY -------------- bra deco_setup_oc_gases_pre ; YES - revert to setting up OC gases | This branch should never happen to be taken... movff WREG,char_I_current_gas ; NO - set diluent to start with when doing the deco calculations ; ; Memory Map: ; --------------------------------------------------------------------------------- ; opt_gas_O2_ratio res NUM_GAS | ; opt_dil_O2_ratio res NUM_GAS | char_I_deco_O2_ratio res NUM_GAS ; opt_gas_He_ratio res NUM_GAS | ; opt_dil_He_ratio res NUM_GAS | char_I_deco_He_ratio res NUM_GAS ; opt_gas_type res NUM_GAS | ; opt_dil_type res NUM_GAS | char_I_deco_gas_type res NUM_GAS ; opt_gas_change res NUM_GAS | ; opt_dil_change res NUM_GAS | char_I_deco_gas_change res NUM_GAS ; lfsr FSR2,char_I_deco_O2_ratio ; Load FSR2 with base address of char_I_deco_O2_ratio. ; FSR2 will step through all char_I_deco_... vars. lfsr FSR1,opt_dil_O2_ratio ; load FSR1 with base address of opt_dil_O2_ratio rcall deco_setup_copy ; copy all dil O2 ratios lfsr FSR1,opt_dil_He_ratio ; load FSR1 with base address of opt_dil_He_ratio rcall deco_setup_copy ; copy all dil He ratios lfsr FSR1,opt_dil_type ; load FSR1 with base address of opt_dil_type rcall deco_setup_copy ; copy all dil types lfsr FSR1,opt_dil_change ; load FSR1 with base address of opt_dil_change rcall deco_setup_copy ; copy all dil change depths ; switch to CCR / pSCR mode bsf lo,DECO_MODE_LOOP_FLAG ; loop flag is set in both, CCR and pSCR mode bcf lo,DECO_MODE_PSCR_FLAG ; clear pSCR mode flag by default btfsc FLAG_pscr_mode ; check if we are in pSCR mode bsf lo,DECO_MODE_PSCR_FLAG ; YES - set additional flag for pSCR mode movff lo,char_O_deco_status ; bank safe write-back of char_O_deco_status return deco_setup_copy: movlw NUM_GAS ; load loop counter with number of gases (5) deco_setup_copy_loop: movff POSTINC1,POSTINC2 ; copy from (FSR1) to (FSR2) decfsz WREG ; decrement loop counter and check if it became 0 bra deco_setup_copy_loop ; NO - not yet, loop return ; YES - done global setup_gas_registers setup_gas_registers: ; with currently breathed gas in WREG (1-5 or 6) movwf active_gas ; set as current gas movlw .6 cpfseq active_gas ; gas = gas6 ? bra setup_gas_registers_15 ; NO - load gas 1-5 movff gas6_O2_ratio,char_I_O2_ratio ; copy gas6 O2 ratio to deco engine movff gas6_He_ratio,char_I_He_ratio ; copy gas6 H2 ratio to deco engine movlw .3 ; declare gas6 as a deco gas movff WREG,char_I_current_gas_type; copy gas type to deco engine movff curr_depth,char_I_gas6_depth; set current depth as change depth bra setup_gas_registers_com ; continue with common part setup_gas_registers_15: decf active_gas,W ; 1-5 -> 0-4 lfsr FSR1,opt_gas_O2_ratio movff PLUSW1,char_I_O2_ratio ; copy gas 1-5 O2 ratio to deco engine lfsr FSR1,opt_gas_He_ratio movff PLUSW1,char_I_He_ratio ; copy gas 1-5 He ratio to deco engine lfsr FSR1,opt_gas_type ; movff PLUSW1,char_I_current_gas_type ; copy gas 1-5 type (0=Disabled, 1=First, 2=Travel, 3=Deco) setup_gas_registers_com: movff char_O_main_status,lo ; working copy of char_O_main_status in bank common bcf lo,DECO_MODE_PSCR_FLAG ; clear the pSCR-mode flag (may not be set, but never mind) bcf lo,DECO_MODE_LOOP_FLAG ; clear the loop/CCR-mode flag movff lo,char_O_main_status ; bank safe write-back of char_O_main_status movf active_gas,W ; reload WREG with gas 1-5 or 6 (important!) return global setup_dil_registers setup_dil_registers: ; with currently breathed gas in WREG (1-5 or 6) btfsc FLAG_bailout_mode ; check if in bailout condition | --------------- FOR SAFETY ONLY -------------- bra setup_gas_registers ; revert to setting up OC gases in bailout condition | This branch should never happen to be taken... movwf active_dil ; set as current diluent movlw .6 cpfseq active_dil ; diluent = gas6 ? bra setup_dil_registers_15 ; NO - load diluent 1-5 movff gas6_O2_ratio,char_I_O2_ratio ; copy gas6 O2 ratio to deco engine movff gas6_He_ratio,char_I_He_ratio ; copy gas6 H2 ratio to deco engine movlw .2 ; declare gas6 as a normal diluent movff WREG,char_I_current_gas_type; copy gas type to deco engine movff curr_depth,char_I_gas6_depth; set current depth as change depth bra setup_dil_registers_com ; continue with common part setup_dil_registers_15: decf active_dil,W ; 1-5 -> 0-4 lfsr FSR1,opt_dil_O2_ratio movff PLUSW1,char_I_O2_ratio ; copy diluent 1-5 O2 ratio to deco engine lfsr FSR1,opt_dil_He_ratio movff PLUSW1,char_I_He_ratio ; copy diluent 1-5 He ratio to deco engine lfsr FSR1,opt_dil_type ; movff PLUSW1,char_I_current_gas_type ; copy dil type (0=Disabled, 1=First, 2=Normal) setup_dil_registers_com: movff char_O_main_status,lo ; working copy of char_O_main_status in bank common bsf lo,DECO_MODE_LOOP_FLAG ; loop flag is set in both, CCR and pSCR mode bcf lo,DECO_MODE_PSCR_FLAG ; clear pSCR mode flag by default btfsc FLAG_pscr_mode ; check if we are in pSCR mode bsf lo,DECO_MODE_PSCR_FLAG ; YES - set additional flag for pSCR mode movff lo,char_O_main_status ; bank safe write-back of char_O_main_status movf active_dil,W ; reload WREG with diluent 1-5 or 6 (important!) return divemode_option_gaschange: ; switch to the "better gas" / "better diluent" btfsc FLAG_oc_mode ; in OC mode? bra divemode_option_gaschange_oc; YES btfsc FLAG_bailout_mode ; in bailout? bra divemode_option_gaschange_oc; YES divemode_option_gaschange_loop: ; in CCR/pSCR mode and not in bailout movff best_dil_number,menupos1 ; NO - select best diluent bcf better_dil_available ; - clear flag immediately bra divemode_option_gaschange3 ; - continue with common part divemode_option_gaschange_oc: ; in OC or bailout movff best_gas_number,menupos1 ; select best gas bcf better_gas_available ; clear flag immediately divemode_option_gaschange3 ; common part bsf divemode_gaschange ; command a gas/diluent change call menuview_toggle_reset ; terminate the options menu return divemode_option0: ; start/setup dive mode menu call TFT_clear_divemode_menu ; clear menu area bcf menuview call do_main_divemenu global divemode_option0_return divemode_option0_return: ; movlw .1 ; movwf menupos1 ; set to first option in dive mode menu call TFT_divemode_menu_cursor ; show the cursor movlw divemode_menu_timeout movwf timeout_counter2 ; timeout for dive mode menu bsf divemode_menu ; set flag clrf menupos2 ; clear option counter goto diveloop_loop4 ; go back to dive loop (menu processor trashes STKPTR!) divemode_option4: movlw d'58' ; two seconds left movwf timeout_counter1+0 movlw apnoe_timeout-1 ; apnoe timeout [min] movwf apnoe_timeout_counter btfss simulatormode_active ; in simulator mode? return ; NO ;bra divemode_option1 ; YES divemode_option1: ; quit simulation mode banksel isr_backup movlw LOW .1000 movwf sim_pressure+0 movlw HIGH .1000 movwf sim_pressure+1 ; set to 0m -> end of dive banksel common call menuview_toggle_reset ; reset to zero (zero = no menu view) btfss FLAG_apnoe_mode ; in apnoe mode? return ; NO - done movlw d'58' ; two seconds left movwf timeout_counter1+0 movlw apnoe_timeout-1 ; apnoe timeout [min] movwf apnoe_timeout_counter return divemode_option3: ; minus 1m banksel isr_backup movlw d'100' subwf sim_pressure+0 movlw .0 subwfb sim_pressure+1 rcall divemode_simulator_check_limits banksel common return divemode_option2: ; plus 1m banksel isr_backup movlw d'100' addwf sim_pressure+0,F movlw .0 addwfc sim_pressure+1,F rcall divemode_simulator_check_limits banksel common return divemode_option5: call menuview_toggle_reset ; reset to zero (zero = no menu view) bsf reset_average_depth ; set flag return divemode_option6: ; advance tissues and deco by 5 minutes movlw .5 ; + 5 minutes movff WREG,char_I_sim_advance_time; copy to mailbox call restart_deco_engine ; stop divetime incrementing in ISR bcf divemode2 ; add 5 minutes to divemins movlw .5 addwf divemins+0,F movlw .0 addwfc divemins+1,F ; add 5 minutes (5 * 60 seconds) to total_divetime_seconds movlw LOW (.5*.60) addwf total_divetime_seconds+0,F movlw HIGH (.5*.60) addwfc total_divetime_seconds+1,F ; continue dive time incrementing in ISR bsf divemode2 ; add 5 minutes (5 * 60 seconds) to resettable time accumulator movlw LOW (.5*.60) addwf average_divesecs+0,F movlw HIGH (.5*.60) addwfc average_divesecs+1,F ; add 5 minutes (5 * 60 seconds) to total time accumulator movlw LOW (.5*.60) addwf average_divesecs_total+0,F movlw HIGH (.5*.60) addwfc average_divesecs_total+1,F ; calculate 300 x depth in mbar (300 = 5 min * 60 sec/min) SAFE_2BYTE_COPY rel_pressure, xB movlw LOW (.5*.60) movwf xA+0 movlw HIGH (.5*.60) movwf xA+1 call mult16x16 ; xA*xB=xC ; add to the resettable depth accumulator movf xC+0,W addwf average_depth_hold+0,F movf xC+1,W addwfc average_depth_hold+1,F movf xC+2,W addwfc average_depth_hold+2,F movf xC+3,W addwfc average_depth_hold+3,F ; add to the total depth accumulator movf xC+0,w addwf average_depth_hold_total+0,F movf xC+1,w addwfc average_depth_hold_total+1,F movf xC+2,w addwfc average_depth_hold_total+2,F movf xC+3,w addwfc average_depth_hold_total+3,F IFDEF _cave_mode ; update backtracking data movlw .5 ; add backtrack data for 5 minutes call update_backtrack ; make it so ENDIF goto menuview_toggle_reset ; and return... divemode_option7: ; Store heading for compass view movff compass_heading_shown+0,compass_bearing+0 movff compass_heading_shown+1,compass_bearing+1 bsf compass_bearing_set ; set flag goto menuview_toggle_reset ; and return... divemode_option8: bsf alternative_divelayout ; set flag for alternative layout mode call menuview_toggle_reset ; terminate the pre-menu call TFT_ClearScreen ; clear the whole screen bsf FLAG_TFT_divemode_mask_alt ; set flag to draw the alternative mask movff menupos3,customview_divemode; back-up the custom view shown in normal layout clrf menupos3 ; select the default alternative layout call customview_mask_alternative ; draw the default alternative layout return ; done divemode_simulator_check_limits: ; check limits (150m and 0m) movlw LOW d'16000' ; compare to 16 bar = 16000 mbar (150m) subwf sim_pressure+0,W movlw HIGH d'16000' subwfb sim_pressure+1,W bnc divemode_simulator_check_limits2 ; no carry = borrow = not deeper ; too deep, limit to 150m movlw LOW d'16000' movwf sim_pressure+0 movlw HIGH d'16000' movwf sim_pressure+1 return divemode_simulator_check_limits2: movlw LOW d'1000' ; compare to 1 bar == 0m == 1000 mbar subwf sim_pressure+0,W movlw HIGH d'1000' subwfb sim_pressure+1,W btfsc STATUS,C ; no carry = borrow = not deeper return ; deeper than 0 m == ok ; too shallow, limit to 0m movlw LOW d'1000' movwf sim_pressure+0 movlw HIGH d'1000' movwf sim_pressure+1 return ;============================================================================= ; Find the best gas and diluent for the current depth ; and check if a gas/diluent change is to be advised. ; ; Output: best_gas_number : number of best gas, 0= none avail, 255= not computed ; best_dil_number : number of best dil, 0= none avail, 255= not computed ; better_gas_available : flag indicating if a change is advised ; better_dil_available : flag indicating if a change is advised ; ; ; in CCR and pSCR mode: - checks both, gases and diluents for respective best gas / best diluent ; - if not in bailout, sets better_dil_available on diluents ; - if in bailout, sets better_gas_available on OC gases ; ; in OC mode : - checks only gases for best gas ; - sets better_gas_available on OC gases ; check_gas_best: movff amb_press_10+0,xA+0 ; copy ambient pressure / 10 into xA:2, will be used by ppO2 min/max checks later movff amb_press_10+1,xA+1 ; ... ; set maximum ppO2 allowed movff char_I_ppO2_max,ppO2_max ; max ppO2 for working phase (default) movff char_O_deco_info,lo ; bank-safe copy of deco info vector btfsc lo,deco_flag ; is the ppo2 deco limit enabled? movff char_I_ppO2_max_deco,ppO2_max ; YES - replace by max ppO2 for deco phase ; check dive mode btfsc FLAG_oc_mode ; in OC mode? bra check_gas_best_gas ; YES - skip diluents, check for best gas only check_gas_best_dil: ; set minimum ppO2 required movff char_I_ppO2_min,WREG ; min ppO2 for pure diluent in CCR mode (default) btfsc FLAG_pscr_mode ; in pSCR mode? movff char_I_ppO2_min_loop,ppO2_min ; YES - replace by min ppO2 for pure diluent in pSCR mode ; preset results to nothing found clrf best_gas_num ; initialize best diluent as 0 = nothing found yet bcf better_dil_available ; =1: a better diluent is available and a gas change is advised in divemode ; ; current diluent = 'gas6' ? ; movlw .6 ; ; cpfseq active_dil ; using 'gas6' as current diluent? ; bra check_gas_best_dil0 ; NO - continue ; bra check_gas_best_dil3 ; YES - suppress better diluent search in this case ;check_gas_best_dil0: ; check all diluents lfsr FSR1,opt_dil_O2_ratio ; set base address for diluent arrays movff active_dil,lo ; number of currently used diluent setf best_gas_depth ; initialize change depth of best dil found so far to 255 meter ; original code clrf check_gas_num incf check_gas_num,F rcall check_gas_best_common ; check diluent 1 incf check_gas_num,F rcall check_gas_best_common ; check diluent 2 incf check_gas_num,F rcall check_gas_best_common ; check diluent 3 incf check_gas_num,F rcall check_gas_best_common ; check diluent 4 incf check_gas_num,F rcall check_gas_best_common ; check diluent 5 ; alternative code ; movlw .5 ; movwf check_gas_num ;check_gas_best_dil_loop: ; rcall check_gas_best_common ; decfsz check_gas_num ; bra check_gas_best_dil_loop ; ; store result movff best_gas_num,best_dil_number ; store new best diluent found (1-5 or 0 of no usable diluent available) ; check if change advices shall be given in general btfsc FLAG_bailout_mode ; in bailout? bra check_gas_best_gas ; YES - no better diluent advice when in bailout check_gas_best_dil1: ; check if a change advice shall be given right now movf best_dil_number,W ; load number of best diluent into WREG (1-5) bz check_gas_best_dil3 ; has a best diluent been found at all? NO - nothing to signal for cpfseq active_dil ; is this the currently used diluent? bra check_gas_best_dil2 ; NO bra check_gas_best_dil3 ; YES - no need to signal a better diluent if this diluent is already in use check_gas_best_dil2: btfsc setpoint_fallback ; is a fallback warning active? bra check_gas_best_dil3 ; YES - suppress better diluent prompt in this case ; not using the best gas - show better diluent hint whenever a better diluent is available bsf better_dil_available ; signal that a better diluent is available bsf FLAG_TFT_active_gas_divemode ; redraw gas/setpoint/diluent check_gas_best_dil3: btfss better_dil_available ; shall a better diluent be signaled for? bcf blinking_better_dil ; NO - clear blinking flag ; continue with checking for best bailout gas check_gas_best_gas: ; set minimum ppO2 required movff char_I_ppO2_min,ppO2_min ; min ppO2 for OC/Bailout ; preset results to nothing found clrf best_gas_num ; initialize best gas as 0 = nothing found yet bcf better_gas_available ; =1: a better gas is available and a gas change is advised in divemode ; ; current gas = 'gas6' ? ; movlw .6 ; ; cpfseq active_gas ; using 'gas6' as current gas? ; bra check_gas_best_gas0 ; NO - continue ; bra check_gas_best_gas3 ; YES - suppress better gas search in this case ;check_gas_best_gas0: ; check all gases lfsr FSR1,opt_gas_O2_ratio ; set base address for gas arrays movff active_gas,lo ; number of currently used gas setf best_gas_depth ; initialize change depth of best gas found so far to 255 meter ; original code clrf check_gas_num incf check_gas_num,F rcall check_gas_best_common ; check gas 1 incf check_gas_num,F rcall check_gas_best_common ; check gas 2 incf check_gas_num,F rcall check_gas_best_common ; check gas 3 incf check_gas_num,F rcall check_gas_best_common ; check gas 4 incf check_gas_num,F rcall check_gas_best_common ; check gas 5 ; alternative code ; movlw .5 ; movwf check_gas_num ;check_gas_best_gas_loop: ; rcall check_gas_best_common ; decfsz check_gas_num ; bra check_gas_best_gas_loop ; ; store result movff best_gas_num,best_gas_number ; store new best gas found (1-5 or 0 of no usable gas available) ; check if change advices shall be given in general btfsc FLAG_oc_mode ; in OC mode? bra check_gas_best_gas1 ; YES btfsc FLAG_bailout_mode ; in bailout? bra check_gas_best_gas1 ; YES return ; NO - no better (OC) gas advice when not in OC or bailout mode check_gas_best_gas1: ; check if we are already on the best gas ; check if a change advice shall be given right now movf best_gas_number,W ; load number of best gas into WREG (1-5) bz check_gas_best_gas3 ; has a best gas been found at all? NO - nothing to signal for cpfseq active_gas ; is this the currently used gas? bra check_gas_best_gas2 ; NO bra check_gas_best_gas3 ; YES - no need to signal a better gas if this gas is already in use check_gas_best_gas2: ; not using the best gas - show better gas hint whenever a better gas is available bsf better_gas_available ; YES - signal that a better gas is available bsf FLAG_TFT_active_gas_divemode ; YES - redraw gas/setpoint/diluent check_gas_best_gas3: btfss better_gas_available ; shall a better gas be signaled for? bcf blinking_better_gas ; NO - clear blinking flag return check_gas_best_common: ; with gas to be checked in check_gas_num (1-5) ; ; and current gas in lo (1-5) ; ; Memory Map: ; --------------------------------------------------------------------------------------- ; opt_gas_O2_ratio res 5 ; base address for gases ; opt_dil_O2_ratio res 5 ; base address for diluents ; opt_gas_He_ratio res 5 ; (not needed here) ; opt_dil_He_ratio res 5 ; (not needed here) ; opt_gas_type res 5 ; has offset of 20 bytes from base address for gases ; opt_dil_type res 5 ; has offset of 20 bytes from base address for diluents ; opt_gas_change res 5 ; has offset of 10 bytes from opt_gas_type ; opt_dil_change res 5 ; has offset of 10 bytes from opt_dil_type ; get gas data decf check_gas_num,W ; (1-5) -> (0-4) into WREG to be used as index movff PLUSW1,check_gas_O2_ratio ; load O2 ratio (%) of current gas/dil into check_gas_O2_ratio addlw .20 ; add offset of 20 bytes to index type in opt_gas_type/opt_dil_type movff PLUSW1,check_gas_type ; load type of current gas/dil into check_gas_type (0=disabled, 1=first, 2=travel/normal, 3=deco/-) addlw .10 ; add offset of 10 bytes to index change depth in opt_gas_change/opt_dil_change movff PLUSW1,check_gas_depth ; load change depth of current gas/dil into check_gas_depth ; check if gas is usable (i.e. not disabled) tstfsz check_gas_type ; type = disabled (0)? bra check_gas_best_common0 ; NO - continue checks movf check_gas_num,W ; YES - get the number of the gas to be checked (1-5) cpfseq lo ; - is this the currently used gas? return ; NO - skip disabled gases which are not the current gas bra check_gas_best_common1 ; YES - a gas in use overrides it's disabled status, therefore treat it as available check_gas_best_common0: ; skip deco gases (type=3) if not in deco mode, but search among all enabled gases when in loop or bailout mode movlw .3 cpfseq check_gas_type ; type = deco (3)? bra check_gas_best_common1 ; NO - proceed btfsc FLAG_bailout_mode ; YES - in bailout? bra check_gas_best_common1 ; YES - proceed, include deco gases movff char_O_main_status,WREG ; NO - get main deco mode btfsc WREG,DECO_MODE_LOOP_FLAG ; - in loop mode? bra check_gas_best_common1 ; YES - proceed, include deco gases movff char_O_deco_info,WREG ; NO - get deco info vector btfss WREG,deco_flag ; - in deco mode (deco_flag set), i.e. use of deco gases allowed? return ; NO - skip deco gas while not in deco mode check_gas_best_common1: ; YES - proceed ; ; check if gas change depth is below minimum change depth ; movlw minimum_change_depth ; for value see definition in hwos.inc ; cpfsgt check_gas_depth ; change depth of checked gas > minimum_change_depth? ; return ; NO - change depth not deep enough, skip and check next gas ; check if gas is usable, i.e. its change depth is below or equal to the current depth movf curr_depth,W ; load current depth (in m) into WREG cpfslt check_gas_depth ; change depth of checked gas < (shallower than) current depth? bra check_gas_best_common2 ; NO - gas is usable return ; YES - gas is not usable check_gas_best_common2: ; check if this gas is the first best gas candidate movf best_gas_num,W ; get best gas found so far (1-5) or 0 if none found yet tstfsz WREG ; has a best gas candidate been found yet? bra check_gas_best_common3 ; YES - check if the new one is better than the one we have so far bra check_gas_best_common4 ; NO - no need to do the above mentioned check check_gas_best_common3: ; check if the change depth of the checked gas is < (shallower) than the change depth of the best gas found so far movf best_gas_depth,W ; load change depth of best gas so far into WREG cpfslt check_gas_depth ; change depth of checked gas < (shallower than) change depth of best gas so far? return ; NO - this gas is not better than the best already found check_gas_best_common4: ; check if the gas fits into the ppO2 limits movff check_gas_O2_ratio,xB+0 ; xB = O2 ratio, xA is still loaded with (p_amb / 10) clrf xB+1 call mult16x16 ; xC = O2 ratio * (p_amb / 10) ; check for very high ppO2 tstfsz xC+2 ; O2_ratio * p_amb / 10 > 65536, i.e. ppO2 > 6.55 bar ? return ; YES - gas is not usable btfsc xC+1,7 ; check if ppO2 > 3.30 bar return ; YES - gas is not usable ; check for low ppO2 movff xC+0,sub_a+0 movff xC+1,sub_a+1 movf ppO2_min,W mullw .100 ; char_I_ppO2_min * 100 movff PRODL,sub_b+0 movff PRODH,sub_b+1 call subU16 ; sub_c = sub_a - sub_b btfsc neg_flag ; within limit? return ; NO - too low, gas is not usable ; check for high ppO2 movf ppO2_max,W mullw .100 ; ppO2_max * 100 movff PRODL,sub_b+0 movff PRODH,sub_b+1 infsnz sub_b+0,F ; add 1 mbar to allowance to avoid exclusion on equal incf sub_b+1,F call subU16 ; sub_c = sub_a - sub_b btfss neg_flag ; within limit? return ; NO - too high, gas is not usable ; we have a (new) best gas movff check_gas_num, best_gas_num ; set checked gas (1-5) as best gas movff check_gas_depth,best_gas_depth ; memorize its change depth return ;============================================================================= ; Check for Auto-SP ; check_dive_autosp: ; check for Auto-SP movff opt_ccr_mode,WREG ; =0: Fixed SP, =1: Sensor, =2: Auto SP sublw .2 ; opt_ccr_mode = 2 (Auto SP)? bz check_dive_autosp2 ; YES - check return ; NO - return for sensor or fixed mode check_dive_autosp2: ; Check SP2 btfsc sp2_switched ; SP 2 used so far? bra check_dive_autosp3 ; YES - continue with SP 3 movff char_I_setpoint_change+1,lo ; NO - get depth in m tstfsz lo ; - SP change depth = 0 ? bra check_dive_autosp2a ; NO - continue bra check_dive_autosp3 ; YES - continue with SP 3 check_dive_autosp2a: decf lo,W ; SP change depth -1 -> WREG cpfsgt curr_depth ; current depth > change depth - 1 ? bra check_dive_autosp3 ; NO - continue with SP 3 ; auto switch to SP2 movff char_I_setpoint_cbar+1,char_I_const_ppO2 ; YES - use SP rcall xmit_sp_set_flag ; - send SP to external devices bsf sp2_switched ; - set SP 2 used flag check_dive_autosp3: ; Check SP3 btfsc sp3_switched ; SP 3 used so far? bra check_dive_autosp4 ; YES - continue with SP 4 movff char_I_setpoint_change+2,lo ; NO - get depth in m tstfsz lo ; - SP change depth = 0 ? bra check_dive_autosp3a ; NO - continue bra check_dive_autosp4 ; YES - continue with SP 4 check_dive_autosp3a: decf lo,W ; SP change depth -1 -> WREG cpfsgt curr_depth ; current depth > change depth - 1 ? bra check_dive_autosp4 ; NO - continue with SP 4 ; auto switch to SP3 movff char_I_setpoint_cbar+2,char_I_const_ppO2 ; YES - use SP rcall xmit_sp_set_flag ; - send SP to external devices bsf sp3_switched ; - set SP 3 used flag check_dive_autosp4: ; Check SP4 btfsc sp4_switched ; SP 4 used so far? bra check_dive_autosp5 ; YES - continue with SP 5 movff char_I_setpoint_change+3,lo ; NO - get depth in m tstfsz lo ; - SP change depth = 0 ? bra check_dive_autosp4a ; NO - continue bra check_dive_autosp5 ; YES - continue with SP 5 check_dive_autosp4a: decf lo,W ; SP change depth -1 -> WREG cpfsgt curr_depth ; current depth > change depth - 1 ? bra check_dive_autosp5 ; NO - continue with SP 5 ; auto switch to SP4 movff char_I_setpoint_cbar+3,char_I_const_ppO2 ; YES - use SP rcall xmit_sp_set_flag ; - send SP to external devices bsf sp4_switched ; - set SP 4 used flag check_dive_autosp5: ; Check SP5 btfsc sp5_switched ; SP 5 used so far? bra check_dive_autosp6 ; YES - done movff char_I_setpoint_change+4,lo ; NO - get depth in m tstfsz lo ; - SP change depth = 0 ? bra check_dive_autosp5a ; NO - continue bra check_dive_autosp6 ; YES - done check_dive_autosp5a: decf lo,W ; SP change depth -1 -> WREG cpfsgt curr_depth ; current depth > change depth - 1 ? bra check_dive_autosp6 ; NO - done ; auto switch to SP5 movff char_I_setpoint_cbar+4,char_I_const_ppO2 ; YES - use SP rcall xmit_sp_set_flag ; - send SP to external devices bsf sp5_switched ; - set SP 5 used flag check_dive_autosp6: return xmit_sp_set_flag: movff char_I_const_ppO2,WREG call transmit_setpoint ; transmit current setpoint from WREG (in cbar) to external electronics bsf setpoint_changed ; set flag (for profile) bsf event_occured ; set event flag return set_logbook_marker: bcf FLAG_set_marker ; clear flag movlw d'6' ; set type of alarm (manual marker) movwf AlarmType ; copy to alarm register bsf event_occured ; set event flag return ;============================================================================= ; Setup everything to enter dive mode ; global dive_boot_oc_bail dive_boot_oc_bail: ; copy opt_gas_types into backup (for "lost gas" feature) movff opt_gas_type+0,opt_gas_type_backup+0 ; 0=Disabled, 1=First, 2=Travel, 3=Deco movff opt_gas_type+1,opt_gas_type_backup+1 ; 0=Disabled, 1=First, 2=Travel, 3=Deco movff opt_gas_type+2,opt_gas_type_backup+2 ; 0=Disabled, 1=First, 2=Travel, 3=Deco movff opt_gas_type+3,opt_gas_type_backup+3 ; 0=Disabled, 1=First, 2=Travel, 3=Deco movff opt_gas_type+4,opt_gas_type_backup+4 ; 0=Disabled, 1=First, 2=Travel, 3=Deco ; done return global dive_boot_oc dive_boot_oc: ; set-up registers rcall get_first_gas_to_WREG ; get first gas (1-5) into WREG rcall setup_gas_registers ; set-up of gas parameters of currently breathed gas (with WREG = gas 1-5) rcall deco_setup_oc_gases ; set-up of gas list for deco calculations (with WREG = gas 1-5) return global dive_boot_cc dive_boot_cc: ; copy opt_dil_types into backup (for "lost diluent" feature) movff opt_dil_type+0,opt_dil_type_backup+0 ; 0=Disabled, 1=First, 2=Normal movff opt_dil_type+1,opt_dil_type_backup+1 ; 0=Disabled, 1=First, 2=Normal movff opt_dil_type+2,opt_dil_type_backup+2 ; 0=Disabled, 1=First, 2=Normal movff opt_dil_type+3,opt_dil_type_backup+3 ; 0=Disabled, 1=First, 2=Normal movff opt_dil_type+4,opt_dil_type_backup+4 ; 0=Disabled, 1=First, 2=Normal ; clear flags bcf FLAG_bailout_mode ; =1: bailout bcf setpoint_fallback ; =1: fallback to SP1 due to external O2 sensor failure ; set-up registers rcall get_first_dil_to_WREG ; get first diluent (1-5) into WREG rcall setup_dil_registers ; set-up of diluent parameters for currently breathed diluent (with WREG = current diluent 1-5) rcall deco_setup_cc_diluents ; set-up of diluent list for deco calculations (with WREG = current diluent 1-5) ; done return dive_boot_cc_part2: ; revoke sensors from usage if they do not have a valid calibration bsf use_O2_sensor1 bsf use_O2_sensor2 bsf use_O2_sensor3 btfss sensor1_calibrated_ok bcf use_O2_sensor1 btfss sensor2_calibrated_ok bcf use_O2_sensor2 btfss sensor3_calibrated_ok bcf use_O2_sensor3 ; check for external HUD/ppO2 Monitor btfss optical_input ; do we have an optical input? bra dive_boot_cc_part2_1 ; NO ; copy (initial) valid flags from HUD/ppO2 Monitor btfsc sensor1_active bsf use_O2_sensor1 btfsc sensor2_active bsf use_O2_sensor2 btfsc sensor3_active bsf use_O2_sensor3 dive_boot_cc_part2_1: ; In pSCR mode, only settings 0 (calculated ppO2) and 1 (ppO2 from sensors) are defined. ; In case we still have 3 (auto SP) selected out of previous CCR mode, we reset to 0. btfss FLAG_pscr_mode bra dive_boot_cc_part2_2 movff opt_ccr_mode,WREG ; =0: Fixed SP (CCR) / calculated SP (pSCR), =1: Sensor, =2: Auto SP sublw .2 ; opt_ccr_mode = 1 (Auto SP)? bnz dive_boot_cc_part2_2 movlw .0 movff WREG,opt_ccr_mode dive_boot_cc_part2_2: bsf setpoint_changed ; set flag (for profile) bcf sp2_switched ; =1: this setpoint has been auto-selected already bcf sp3_switched ; =1: this setpoint has been auto-selected already bcf sp4_switched ; =1: this setpoint has been auto-selected already bcf sp5_switched ; =1: this setpoint has been auto-selected already ; Start with SP1 (CCR) or 0 (pSCR) as default. ; If in sensor mode, this value will be overwritten by calc_deko_divemode_sensor clrf WREG ; preload WREG with setpoint value 0 for pSCR calculated btfsc FLAG_ccr_mode ; are we in CCR mode? movff char_I_setpoint_cbar+0,WREG ; YES - get value of setpoint 1 movff WREG,char_I_const_ppO2 ; write setpoint to deco engine call transmit_setpoint ; transmit current setpoint from WREG (in cbar) to external electronics goto calc_deko_divemode_sensor ; read & process sensor data (and return) diveloop_boot: ; do the basic initialization call restart_set_modes_and_flags ; stop accelerometer and compass call I2C_sleep_accelerometer call I2C_sleep_compass ; reset max pressure aka max depth clrf WREG movff WREG,max_pressure+0 movff WREG,max_pressure+1 ; initialize press needs to zero and invalid (not yet computed) state clrf WREG ; set WREG to 0 IFDEF _cave_mode movff WREG,char_I_backtrack_time ; clear backtracking time (index to char_I_backtrack_depth) movff WREG,char_I_backtrack_depth ; prime first entry with depth 0 ENDIF bsf WREG,int_is_zero ; set zero flag bsf WREG,int_invalid_flag ; set invalid flag (additionally) banksel int_O_ascent_pres_need ; select bank with shared output vars movwf int_O_ascent_pres_need+1 ; Set flags for tank pressure needs = 0 before p2_deco.c movwf int_O_ascent_pres_need+3 ; can do it. If this is not done here and the gas needs movwf int_O_ascent_pres_need+5 ; custom view is shown before p2_deco.c completes the first movwf int_O_ascent_pres_need+7 ; deco calculation, some rubbish numbers from last dive or movwf int_O_ascent_pres_need+9 ; simulation may be shown banksel common ; back to bank common ; configure the deco engine clrf hi bsf hi,DECO_Z_FACTOR_FLAG ; enable Z factor mode by default TSTOSS opt_ZfactorUse ; shall use Z factor mode? bcf hi,DECO_Z_FACTOR_FLAG ; NO - disable again IFDEF _rx_functions bsf hi,DECO_TR_FUNCTIONS ; enable TR mode by default btfss FLAG_tr_enabled ; shall use TR mode? bcf hi,DECO_TR_FUNCTIONS ; NO - disable again ENDIF movff hi,char_O_main_status ; bank-safe copy to deco engine movff char_O_deco_status,lo ; bank-safe read bsf lo,DECO_STATUS_0_FLAG ; set init- | ATTENTION: The deco engine must be started in init state! If omitted, it may bsf lo,DECO_STATUS_1_FLAG ; state, | enter an infinite loop at some point in time and brick the OSTC! bcf lo,DECO_PLAN_FLAG ; normal plan mode, bcf lo,DECO_VOLUME_FLAG ; disable gas volume calculation, and bcf lo,DECO_ASCENT_FLAG ; disable delayed ascent calculation movff lo,char_O_deco_status ; bank-safe copy back to deco engine clrf WREG movff WREG,char_O_deco_warnings ; clear any deco warnings remaining from last dive movff WREG,char_O_deco_info ; clear any deco infos remaining from last dive movlw deco_distance ; load distance between actual depth and depth used for deco calculation movff WREG,char_I_deco_distance ; write distance to the deco engine movff opt_last_stop,char_I_depth_last_deco ; write last stop depth to deco engine movff opt_GF_low,char_I_GF_Low_percentage ; write GF low to deco engine movff opt_GF_high,char_I_GF_High_percentage ; write GF high to deco engine bcf onesectoggle ; clear toggle bit for calculation phasing bcf use_agf ; start with normal GF set bcf divemode_menu ; clear dive mode menu flag bcf alternative_divelayout ; start with default layout bcf blinking_depth_prev ; clear flag for blinking depth bcf blinking_depth_toggle ; clear flag for blinking depth bcf blinking_depth_warning ; clear flag for blinking depth as warning bcf blinking_depth_attention ; clear flag for blinking depth as attention bcf max_depth_greater_100m ; clear flag for last max/avg depth was > 100 m movlw d'1' movwf apnoe_max_pressure+0 clrf apnoe_max_pressure+1 ; clrf apnoe_surface_mins ; clrf apnoe_surface_secs ; copy date and time for logbook movff year,start_year movff month,start_month movff day,start_day movff hours,start_hours movff mins,start_mins movff int_O_CNS_fraction+0,CNS_start+0 ; save CNS value at beginning of dive movff int_O_CNS_fraction+1,WREG ; get high byte to WREG bcf WREG,int_warning_flag ; clear warning flag bcf WREG,int_attention_flag ; clear attention flag movff WREG,CNS_start+1 ; move high byte on movff int_O_gradient_factor+0,GF_start ; save GF value at beginning of dive (only lower byte used for value) bcf no_more_divesecs ; =1: do no longer show seconds in dive mode bcf divemode_menu_active clrf menupos1 clrf menupos2 ; reset to zero (Zero=no pre-menu or simulator task) bsf sensors_agree ; init of sensors disagree warning system bcf show_safety_stop ; =1: show the safety stop clrf safety_stop_countdown ; clear count-down clrf samplesecs ; timer for data logging clrf apnoe_timeout_counter ; timeout in minutes clrf timeout_counter1+0 ; takes care of the timeout (low byte) clrf timeout_counter1+1 ; takes care of the timeout (high byte) clrf AlarmType ; Clear all alarms bcf event_occured ; clear flag clrf average_divesecs_total+0 ; clear non-resettable time accumulator clrf average_divesecs_total+1 clrf average_depth_hold_total+0 ; clear non-resettable average depth clrf average_depth_hold_total+1 clrf average_depth_hold_total+2 clrf average_depth_hold_total+3 call reset_average ; reset the resettable average depth IFDEF _rx_functions btfss FLAG_tr_enabled ; TR functions enabled? bra diveloop_boot_0 ; NO - skip TR function initialization ; YES - initialize TR function variables banksel int_O_sac_rate clrf int_O_sac_rate+0 ; clear low byte of SAC rate clrf int_O_pressure_need+0 ; clear low byte of 1st pressure need value clrf int_O_pressure_need+2 ; clear low byte of 2nd pressure need value banksel int_IO_pressure_value clrf int_IO_pressure_value+0 ; clear low byte of 1st pressure reading value clrf int_IO_pressure_value+2 ; clear low byte of 2nd pressure reading value clrf int_I_pressure_drop+0 ; clear low byte of 1st pressure drop value clrf int_I_pressure_drop+2 ; clear low byte of 2nd pressure drop value clrf char_I_pressure_gas+0 ; clear gas selection of 1st pressure reading clrf char_I_pressure_gas+1 ; clear gas selection of 2nd pressure reading clrf char_I_pressure_age+0 ; clear age of 1st pressure reading clrf char_I_pressure_age+1 ; clear age of 2nd pressure reading clrf char_I_pressure_stat+0 ; clear status of 1st pressure reading clrf char_I_pressure_stat+1 ; clear status of 2nd pressure reading clrf WREG ; clear WREG bsf WREG,int_not_avail_flag ; set WREG to coding for integer numbers -> data not available banksel int_O_sac_rate movwf int_O_sac_rate+1 ; copy to high byte of SAC rate movwf int_O_pressure_need+1 ; copy to high byte of 1st pressure need value movwf int_O_pressure_need+3 ; copy to high byte of 1st pressure need value banksel int_IO_pressure_value movwf int_IO_pressure_value+1 ; copy to high byte of 1st pressure reading value movwf int_IO_pressure_value+3 ; copy to high byte of 2nd pressure reading value movwf int_I_pressure_drop+1 ; copy to high byte of 1st pressure drop value movwf int_I_pressure_drop+3 ; copy to high byte of 1st pressure drop value banksel gas__last_1st ; select bank with vars for pressure drop calculation setf gas__last_1st ; invalidate last gas of 1st reading setf gas__last_2nd ; invalidate last gas of 2nd reading banksel common ; back to bank common ENDIF diveloop_boot_0: bcf decostop_active ; clear flag for being in deco setf best_gas_number ; initialize best gas as not computed yet (255) setf best_dil_number ; initialize best diluent as not computed yet (255) bcf better_gas_available ; =1: a better gas is available and a gas change is advised bcf better_dil_available ; =1: a better diluent is available and a gas change is advised rcall dive_boot_oc_bail ; basic settings required for all modes btfsc FLAG_oc_mode ; in OC mode? rcall dive_boot_oc ; YES - add OC mode settings btfsc FLAG_ccr_mode ; in CCR mode? rcall dive_boot_cc ; YES - add CC mode settings btfsc FLAG_ccr_mode ; in CCR mode? rcall dive_boot_cc_part2 ; YES - add CC sensor and SP settings btfsc FLAG_pscr_mode ; in pSCR mode? rcall dive_boot_cc ; YES - add CC mode settings btfsc FLAG_pscr_mode ; in pSCR mode? rcall dive_boot_cc_part2 ; YES - add CC sensor and SP settings call ghostwriter_short_header ; write short header with dive number into profile memory btfsc simulatormode_active bra diveloop_boot_1 ; normal mode = surface pressure is the pressure 30 minutes before dive SAFE_2BYTE_COPY last_surfpressure_30min, int_I_pres_surface ;copy surface pressure to deco routine SAFE_2BYTE_COPY last_surfpressure_30min, last_surfpressure ;copy surface pressure to last_surfpressure for correct depth bra diveloop_boot_2 diveloop_boot_1: ; simulator mode: set surface pressure to 1 bar because simulated depths are also based on 1 bar surface pressure movlw LOW .1000 movff WREG,int_I_pres_surface+0 ; LOW copy surface pressure to deco routine movlw HIGH .1000 movff WREG,int_I_pres_surface+1 ; HIGH copy surface pressure to deco routine diveloop_boot_2: SAFE_2BYTE_COPY temperature,minimum_temperature ; reset minimum temperature registers call init_recording_params ; set up all the divisors bsf FLAG_diluent_setup ; for CCR mode (required to have better gas working) btfsc FLAG_ccr_mode ; =1: CCR mode (fixed ppO2 or Sensor) active bra diveloop_boot_3 btfsc FLAG_pscr_mode bra diveloop_boot_3 bcf FLAG_diluent_setup ; for OC mode (required to have better gas working) diveloop_boot_3: bcf LEDg ; switch off green LED / release reset to RX circuitry bcf LEDr ; switch off red LED bcf realdive btfss simulatormode_active ; in simulator mode? call disable_rs232 ; NO - disable RS232 IFDEF _screendump btfsc enable_screen_dumps ; =1: ignore vin_usb, wait for "l" command (screen dump) call enable_rs232 ; also sets to speed_normal ENDIF ; reset dive time seconds ; movlw .2 ; start at 2 seconds ; movwf total_divetime_seconds+0 ; clrf total_divetime_seconds+1 ; movwf divesecs ; movwf apnoe_secs ; bsf divemode2 ; displayed dive time is running (dive time starts HERE) ; clear the timers (start dive times at zero) clrf total_divetime_seconds+0 clrf total_divetime_seconds+1 clrf divesecs clrf divemins+0 clrf divemins+1 clrf apnoe_secs clrf apnoe_mins ; divemode2 flag will be set by pressure & timeout evaluation in function set_dive_modes return ; done with dive mode boot ;============================================================================= divemode_check_for_warnings: movlw .1 ; one message at a time in alternative layout btfss alternative_divelayout movlw .2 ; two messages at a time in default layout cpfsgt message_counter ; only one (or two) messages active? bra divemode_check_for_warnings1; YES - update every second btfss secs,0 ; every two seconds... return btfss secs,1 ; every four seconds... return divemode_check_for_warnings1: bcf message_advice ; clear flag for messages of level advice bcf message_attention ; clear flag for messages of level attention bcf message_warning ; clear flag for messages of level warning clrf message_counter ; clear message counter ; messages sorted by severity: highest severity warnings first, then attentions, advices and last info ; warnings for all modes call check_warn_battery ; check if the battery level should be displayed/warned call check_divetimeout ; check and show the dive mode timeout (not actually a warning) btfsc FLAG_apnoe_mode ; in Apnoe mode? bra divemode_check_for_warnings2; YES btfsc FLAG_gauge_mode ; in gauge mode? bra divemode_check_for_warnings2; YES ; warnings applicable only in deco modes rcall check_ppO2 ; check ppO2 and displays warning, if required btfss sensors_agree ; are the sensor values within the threshold range? rcall check_warn_sensors_disagree ; NO - further evaluate btfsc sensors_agree ; are the sensor values within the threshold range? bcf sensor_warning ; YES - revoke memorized sensor warning rcall check_outside ; check of ZHL16 model violation rcall check_IBCD ; check for IBCD attention or warning rcall check_OC_gas_avail ; check if a breathable OC gas is available btfsc decostop_active ; in deco mode? rcall check_and_store_gf_violation; YES - sets warnings, if required rcall check_mbubbles ; check for micro bubbles rcall check_cns_violation ; Check CNS value and display it, if required rcall check_gas_needs_ascent ; show gas needs warning if any gas need for ascent is > threshold rcall check_eod_cns_violation ; check CNS values for end-of-dive and display warning, if required rcall check_display_ftts ; show @+x time IFDEF _cave_mode btfsc FLAG_cave_mode ; cave mode enabled? rcall check_cavemode ; YES - check cave mode status ENDIF btfsc use_agf ; in aGF mode? rcall warn_agf ; YES - show memo btfsc setpoint_fallback ; fallback to SP1 due to external O2 sensor failure? rcall warn_fallback ; YES - show a warning btfsc better_dil_available ; is a better diluent available? rcall advice_gas_change ; YES - display an advice btfsc better_gas_available ; is a better gas available? rcall advice_gas_change ; YES - display an advice divemode_check_for_warnings2: IFDEF _rx_functions btfss FLAG_tr_enabled ; TR functions enabled? bra divemode_check_for_warnings3 ; NO - skip call check_tr_functions ; YES - check transmitter functions call check_tr_messages ; - check SAC attention and switch advice ENDIF divemode_check_for_warnings3: ; Display the attention or warning icon? btfsc message_advice ; any message of level advice? bsf FLAG_TFT_divemode_warning ; YES btfsc message_attention ; any message of level attention? bsf FLAG_TFT_divemode_warning ; YES btfsc message_warning ; any message of level warning? bsf FLAG_TFT_divemode_warning ; YES btfss FLAG_TFT_divemode_warning ; any message of above levels? bsf FLAG_TFT_divemode_warning_clear ; NO - clear warning icon ; Setup message page number incf message_page,F movf message_page,W bcf STATUS,C btfss alternative_divelayout ; in alternative layout? rlcf message_page,W ; NO - *2 cpfsgt message_counter ; > message_counter? clrf message_page ; NO - clear ; Clear both rows of messages if there is nothing to show at all tstfsz message_counter ; any messages? bra divemode_check_for_warnings4 ; YES - look if second row needs to be cleared bsf FLAG_TFT_dive_warning_text_clear; set flag return divemode_check_for_warnings4: ; Clear 2nd row of messages if there is nothing to show (on this page) btfss second_row_warning ; =1: the second row contains a warning bsf FLAG_TFT_dive_warning_text_clr2 ; set flag for 2nd row return ; done global check_warn_battery check_warn_battery: movff batt_percent,lo movlw battery_show_level+1 cpfslt lo ; battery percentage ok? return ; YES - no display, no warning ; Display Battery, but warn? movff batt_percent,lo movlw color_code_battery_low+1 cpfsgt lo ; battery percent below warning threshold? bsf message_warning ; YES - set warning flag btfsc alternative_divelayout ; in alternative layout? bra check_warn_battery2 ; YES - show warning movlw index_clock_batt_surfpress ; NO - index of custom view clock, battery and surface pressure cpfseq menupos3 ; - battery shown in custom view? bra check_warn_battery2 ; NO - show warning return ; YES - do not show twice (in custom view and in message area) check_warn_battery2: incf message_counter,F ; increase counter goto TFT_update_batt_percent_divemode ; show percent (and return) check_divetimeout: btfsc divemode2 ; dive time running? return ; YES - do nothing incf message_counter,F ; increase counter goto TFT_divetimeout ; show timeout counter (and return) check_ppO2: btfsc FLAG_oc_mode ; are we in OC mode? bra check_ppO2_1 ; YES - continue with breathed gas btfsc FLAG_bailout_mode ; NO - in bailout? bra check_ppO2_1 ; YES - continue with breathed gas ; CCR / pSCR mode - checks on pure diluent movff int_O_pure_ppO2+0,lo ; get value and attention/warning flags for the pure diluent movff int_O_pure_ppO2+1,hi ; btfsc hi,int_warning_flag ; ppO2 of the pure diluent to low or high? rcall check_ppO2_dw ; YES - show warning and return on next line btfsc hi,int_attention_flag ; ppO2 of the pure diluent in attention state? rcall check_ppO2_da ; YES - show attention and return on next line ; all modes - checks on breathed gas (OC or from loop) check_ppO2_1: movff int_O_breathed_ppO2+0,lo ; get value and attention/warning flags for the breathed gas movff int_O_breathed_ppO2+1,hi ; get warnings for breathed gas btfsc hi,int_attention_flag ; breathed ppO2 in attention state (when in loop mode, no attention will be generated)? bra check_ppo2_display_a ; YES - set attention flag and show ppO2 btfsc hi,int_low_flag ; breathed ppO2 to low? bra check_ppO2_low ; YES - record the warning and show ppO2 btfsc hi,int_high_flag ; breathed ppO2 to high? bra check_ppO2_high ; YES - record the warning and show ppO2 TSTOSS opt_showppo2 ; show ppO2 anyhow? (0 = no, 1 = show always) return ; NO - no warnings, no show - done bra check_ppO2_common_2 ; YES - but only when in OC or bailout... check_ppO2_low: movlw d'4' ; set type of alarm (ppO2 low) bra check_ppO2_common ; continue with common part check_ppO2_high: movlw d'5' ; set type of alarm (ppO2 high) check_ppO2_common: movwf AlarmType ; copy alarm type to alarm register bsf event_occured ; set event flag bsf message_warning ; show warning sign check_ppO2_common_2: btfsc FLAG_oc_mode ; are we in OC mode? bra check_ppo2_display ; YES btfsc FLAG_bailout_mode ; are we in bailout mode? bra check_ppo2_display ; YES return ; NO - in loop mode, ppO2 is already shown via setpoint display check_ppo2_display_a: bsf message_attention ; show attention sign check_ppo2_display: btfsc alternative_divelayout ; in alternative layout? bra check_ppO2_d ; YES - show warning movlw index_ppo2_ead_end_cns ; NO - index of custom view ppO2, EAD/END and CNS) cpfseq menupos3 ; ppO2 shown? bra check_ppO2_b ; NO return ; YES - do not show twice (in custom view and in warning area) check_ppO2_b: movlw index_pscr_info ; index of custom view with pSCR data cpfseq menupos3 ; ppO2 shown? bra check_ppO2_d ; NO - show warning return ; YES - do not show twice (in custom view and in warning area) check_ppO2_dw: bsf message_warning ; show warning sign check_ppO2_da: bsf message_attention ; show attention sign (no problem if a warning sign is set as well, as it will take priority) check_ppO2_d: incf message_counter,F ; increase counter goto TFT_display_ppo2_warning ; show breathed gas or diluent ppO2 warning (and return) check_display_ftts: movff char_I_extra_time,lo ; get extra time tstfsz lo ; extra time > 0 ? bra check_display_ftts_1 ; YES - continue checking bailout condition return ; NO - done check_display_ftts_1: btfsc FLAG_bailout_mode ; in bailout mode? return ; YES - in bailout no fTTS will be computed, so nothing to display incf message_counter,F ; NO - increase counter goto TFT_display_ftts ; - show @+x time global check_cns_violation check_cns_violation: ; Check if CNS should be displayed movff int_O_CNS_fraction+1,WREG ; get high byte btfsc WREG,int_warning_flag ; warning flag set? bra check_cns_violation_1 ; YES - issue warning btfsc WREG,int_attention_flag ; NO - attention flag set? bra check_cns_violation_2 ; YES - issue attention return ; NO - done check_cns_violation_1: bsf message_warning ; show warning sign check_cns_violation_2: bsf message_attention ; show attention sign btfsc alternative_divelayout ; in alternative layout? bra check_cns_violation_4 ; YES - show attention movlw index_ppo2_ead_end_cns ; NO - index of custom view ppO2, EAD/END and CNS cpfseq menupos3 ; - CNS shown? bra check_cns_violation_3 ; NO return ; YES - do not show twice (in custom view and in warning area) check_cns_violation_3: movlw index_CNS ; index of custom view with CNS values cpfseq menupos3 ; CNS shown? bra check_cns_violation_4 ; NO return ; YES - do not show twice (in custom view and in warning area) check_cns_violation_4: incf message_counter,F ; increase counter goto TFT_display_cns ; show CNS (and return) global check_eod_cns_violation ; check end-of-dive CNS values check_eod_cns_violation: movff int_O_CNS_fraction+1,WREG ; get high-byte of current CNS value btfsc WREG,int_warning_flag ; current CNS value in warning state? return ; YES - inhibit end-of-dive warning if current CNS is already in warning movff int_O_normal_CNS_fraction+1,WREG btfsc WREG,int_invalid_flag ; flag for invalid value set? bra check_eod_cns_violation1 ; YES - continue with checking the other CNS value btfsc WREG,int_warning_flag ; NO - flag for warning set? bra check_eod_cns_violation2 ; YES - issue warning check_eod_cns_violation1: ; NO - continue with checking the other CNS value movff int_O_alternate_CNS_fraction+1,WREG btfsc WREG,int_invalid_flag ; flag for invalid value set? return ; YES - done with CNS checking btfsc WREG,int_warning_flag ; NO - flag for warning set? bra check_eod_cns_violation2 ; YES - issue warning return ; NO - done with CNS checking check_eod_cns_violation2: ; issue warning (actually only on attention level) bsf message_attention ; show attention sign btfsc alternative_divelayout ; in alternative layout? bra display_eod_cns_violation ; YES - show warning movlw index_CNS ; NO - index of custom view with CNS values cpfseq menupos3 ; - CNS values shown? bra display_eod_cns_violation ; NO - issue textual warning return ; YES - do not show twice (in custom view and in warning area) display_eod_cns_violation: incf message_counter,F ; increase counter goto TFT_display_eod_cns ; issue CNS at end-of-dive warning (and return) global check_and_store_gf_violation check_and_store_gf_violation: movff int_O_gradient_factor+1,WREG ; get upper byte of gradient factor btfss WREG,int_warning_flag ; check if the warning flag is set bra check_and_store_gf_violation2 ; NO - continue with checking for attention flag movlw d'2' ; YES - set type of alarm movwf AlarmType ; copy to alarm register bsf event_occured ; set event flag bsf message_warning ; set warning flag bra check_and_store_gf_violation3 ; show gf warning check_and_store_gf_violation2: btfsc WREG,int_attention_flag ; check if the attention flag is set bra check_and_store_gf_violation3 ; YES - show gf TSTOSS opt_enable_IBCD ; NO - IBCD warning activated? bra check_and_store_gf_violation4 ; NO - continue checking of deco info movff char_O_deco_warnings,WREG ; YES - get the deco warnings vector btfss WREG,IBCD_warning ; is the IBCD warning flag set? bra check_and_store_gf_violation4 ; NO - continue checking for deco info check_and_store_gf_violation3: ; YES - show gf bsf message_attention ; show attention sign incf message_counter,F ; increase counter goto TFT_warning_gf ; show GF (and return) check_and_store_gf_violation4: ; check for deco info btfss divemode ; in dive mode? return ; NO - done, return btfsc FLAG_bailout_mode ; YES - in bailout mode? return ; YES - done, return (deco_decreasing flag is not updated when in bailout mode) movff char_O_deco_info,WREG ; NO - get the deco info vector btfss WREG,deco_decreasing ; check if the deco_decreasing flag is set return ; NO - done, return incf message_counter,F ; YES - increase counter goto TFT_info_deco ; - show deco info check_outside: movff char_O_deco_warnings,WREG ; bank-safe copy of deco warnings btfss WREG,outside_warning_lock ; are we outside of the ZH-L16 model? return ; NO - done incf message_counter,F ; YES - increase counter bsf message_attention ; - show attention sign btfsc WREG,outside_warning ; - are we outside the ZH-L16 model right now (-> warning)? bsf message_warning ; - set warning flag goto TFT_warning_outside ; - show outside-ZHL-model warning/attention (and return) global check_mbubbles check_mbubbles: movff char_O_deco_warnings,WREG ; bank-safe copy for deco warnings btfsc WREG,mbubble_warning ; are we in micro bubbling zone right now? bra check_mbubbles_warn ; YES btfss WREG,mbubble_warning_lock ; were we in micro bubbling zone? return ; NO - done check_mbubble_att ; YES - attention level incf message_counter,F ; increase counter bsf message_attention ; show attention sign goto TFT_warning_mbubbles ; show micro bubble attention (and return) - TFT_warning_mbubbles switches by itself between attention and warning check_mbubbles_warn: ; locked micro bubbles - warning level if at issue, attention level if locked incf message_counter,F ; increase counter bsf message_warning ; set warning flag goto TFT_warning_mbubbles ; show micro bubbles warning (and return) IFDEF _cave_mode check_cavemode: incf message_counter,F ; increase counter btfsc FLAG_dive_turned ; dive turned? goto TFT_info_dive_turned ; YES - show info that dive is turned btfsc FLAG_cave_mode_shutdown ; NO - has cave mode shut down? goto TFT_warn_cave_shutdown ; YES - show that cave mode has shut down goto TFT_info_cave_mode ; NO - show that cave mode is active ENDIF warn_agf: incf message_counter,F ; increase counter goto TFT_warning_agf ; show aGF warning (and return) warn_fallback: incf message_counter,F ; increase counter bsf message_warning ; set warning flag goto TFT_warning_fallback ; show fallback warning (and return) IFDEF _rx_functions check_tr_messages: movff int_O_sac_rate+1,WREG ; bank-safe copy of current SAC rate btfss WREG,int_attention_flag ; attention flag set? bra check_tr_messages2 ; NO - skip btfsc WREG,int_not_avail_flag ; SAC rate available? bra check_tr_messages2 ; NO - continue with swap advice bsf message_attention ; YES - show attention sign btfsc alternative_divelayout ; - in alternative layout? bra check_tr_messages1 ; YES - show attention message movlw index_pressures_SAC ; NO - index of custom view with SAC rate cpfseq menupos3 ; - SAC rate shown right now? bra check_tr_messages1 ; NO - show attention message bra check_tr_messages2 ; YES - do not show twice, continue with swap advice check_tr_messages1: incf message_counter,F ; increase counter call TFT_attention_sac ; show SAC attention check_tr_messages2: movff char_O_deco_info,WREG ; bank-safe copy of deco info vector btfss WREG,ind_double_switch ; swap tank flag set? return ; NO incf message_counter,F ; YES - increase counter bsf message_advice ; - show advice sign goto TFT_advice_switch ; - show swap advice #DEFINE show_custview ul,0 ; show pressure readings custom view #DEFINE show_transmitter ul,1 ; show transmitter attention #DEFINE show_pres_warning ul,2 ; show transmitter pressure warning #DEFINE show_pres_attention ul,3 ; show transmitter pressure attention check_tr_functions: clrf ul ; set all messages as not shown yet btfsc alternative_divelayout ; in alternative layout? bra check_tr_functions_tr1 ; YES - continue with checking transmitter 1 movlw index_pressures_SAC ; NO - index of custom view pressure readings cpfseq menupos3 ; - pressure readings shown? bra check_tr_functions_tr1 ; NO - continue with checking transmitter 1 bsf show_custview ; YES - suppress redraw by faking it has already been redrawn check_tr_functions_tr1: movff char_I_pressure_stat+0,WREG ; get status of 1st pressure reading rcall check_tr_functions_helper1 ; check for transmitter 1 lost rcall check_tr_functions_helper2 ; check for transmitter 1 low battery movff int_IO_pressure_value+1,WREG ; get high byte of 1st pressure reading rcall check_tr_functions_helper3 ; check for transmitter 1 pressure warning rcall check_tr_functions_helper4 ; check for transmitter 1 pressure attention check_tr_functions_tr2: movff char_I_pressure_stat+1,WREG ; get status of 2nd pressure reading rcall check_tr_functions_helper5 ; check for transmitter 2 lost rcall check_tr_functions_helper6 ; check for transmitter 2 low battery movff int_IO_pressure_value+3,WREG ; get high byte of 2nd pressure reading rcall check_tr_functions_helper7 ; check for transmitter 2 pressure warning rcall check_tr_functions_helper8 ; check for transmitter 2 pressure attention check_tr_functions_show_xmtr: btfss show_transmitter ; shall show transmitter message? bra check_tr_functions_show_warn ; NO - continue with pressure warning bsf message_attention ; YES - set flag for attention incf message_counter,F ; - increase counter call TFT_attention_transmitter ; - show transmitter attention message check_tr_functions_show_warn: btfss show_pres_warning ; shall show pressure warning? bra check_tr_functions_show_att ; NO - continue with pressure attention bsf message_warning ; YES - set flag for warning incf message_counter,F ; - increase counter goto TFT_warning_pres_reading ; - pressure reading warning message and done then check_tr_functions_show_att: btfss show_pres_attention ; shall show pressure attention? return ; NO - done bsf message_attention ; YES - set flag for attention incf message_counter,F ; - increase counter goto TFT_attention_pres_reading ; - pressure reading warning message and done then check_tr_functions_helper1: btfsc WREG,char_transmitter_lost ; transmitter 1 lost? bra check_tr_functions_helper1a ; YES - show transmitter attention message bcf transmitter1_lost ; NO - clear flag for old lost attention return ; - done check_tr_functions_helper1a: bsf show_transmitter ; show transmitter attention btfsc transmitter1_lost ; is it a new message? return ; NO - do not show the pressure readings custom view again bsf transmitter1_lost ; YES - memorize it's an old message now bra check_tr_functions_show_cv ; - show custom view check_tr_functions_helper2: btfsc WREG,char_transmitter_low_bat ; transmitter 1 low battery? bra check_tr_functions_helper2a ; YES - show transmitter attention message bcf transmitter1_battery ; NO - clear flag for old battery attention return ; - done check_tr_functions_helper2a: bsf show_transmitter ; show transmitter attention btfsc transmitter1_battery ; is it a new message? return ; NO - do not show the pressure readings custom view again bsf transmitter1_battery ; YES - memorize it's an old message now bra check_tr_functions_show_cv ; - show custom view check_tr_functions_helper3: btfsc WREG,int_warning_flag ; transmitter 1 pressure warning? bra check_tr_functions_helper3a ; YES - show pressure reading message as warning bcf transmitter1_pres_warn ; NO - clear flag for old warning return ; - done check_tr_functions_helper3a: bsf show_pres_warning ; show pressure warning btfsc transmitter1_pres_warn ; is it a new message? return ; NO - do not show the pressure readings custom view again bsf transmitter1_pres_warn ; YES - memorize it's an old message now bra check_tr_functions_show_cv ; - show custom view check_tr_functions_helper4: btfsc WREG,int_attention_flag ; transmitter 1 pressure attention? bra check_tr_functions_helper4a ; YES - show pressure reading message as attention bcf transmitter1_pres_att ; NO - clear flag for old attention return ; - done check_tr_functions_helper4a bsf show_pres_attention ; show pressure attention btfsc transmitter1_pres_att ; is it a new message? return ; NO - do not show the pressure readings custom view again bsf transmitter1_pres_att ; YES - memorize it's an old message now bra check_tr_functions_show_cv ; - show custom view check_tr_functions_helper5: btfsc WREG,char_transmitter_lost ; transmitter 2 lost? bra check_tr_functions_helper5a ; YES - show transmitter attention message bcf transmitter2_lost ; NO - clear flag for old lost attention return ; - done check_tr_functions_helper5a: bsf show_transmitter ; show transmitter attention btfsc transmitter2_lost ; is it a new message? return ; NO - do not show the pressure readings custom view again bsf transmitter2_lost ; YES - memorize it's an old message now bra check_tr_functions_show_cv ; - show custom view check_tr_functions_helper6: btfsc WREG,char_transmitter_low_bat ; transmitter 2 low battery? bra check_tr_functions_helper6a ; YES - show transmitter attention message bcf transmitter2_battery ; NO - clear flag for old battery attention return ; - done check_tr_functions_helper6a: bsf show_transmitter ; show transmitter attention btfsc transmitter2_battery ; is it a new message? return ; NO - do not show the pressure readings custom view again bsf transmitter2_battery ; YES - memorize it's an old message now bra check_tr_functions_show_cv ; - show custom view check_tr_functions_helper7: btfsc WREG,int_warning_flag ; transmitter 2 pressure warning? bra check_tr_functions_helper7a ; YES - show pressure reading message as warning bcf transmitter2_pres_warn ; NO - clear flag for old warning return ; - done check_tr_functions_helper7a: bsf show_pres_warning ; show pressure warning btfsc transmitter2_pres_warn ; is it a new message? return ; NO - do not show the pressure readings custom view again bsf transmitter2_pres_warn ; YES - memorize it's an old message now bra check_tr_functions_show_cv ; - show custom view check_tr_functions_helper8: btfsc WREG,int_attention_flag ; transmitter 2 pressure attention? bra check_tr_functions_helper8a ; YES - show pressure reading message as attention bcf transmitter2_pres_att ; NO - clear flag for old attention return ; - done check_tr_functions_helper8a bsf show_pres_attention ; show pressure attention btfsc transmitter2_pres_att ; is it a new message? return ; NO - do not show the pressure readings custom view again bsf transmitter2_pres_att ; YES - memorize it's an old message now ;bra check_tr_functions_show_cv ; - show custom view check_tr_functions_show_cv: btfsc show_custview ; is the pressure readings custom view not shown yet shown? return ; NO - already shown, done bsf show_custview ; YES - mark as shown btfsc alternative_divelayout ; - in alternative layout? call switch_layout_to_normal ; YES - switch to normal layout movlw index_pressures_SAC-1 ; custom view number one below pressure readings movwf menupos3 ; set custom view number bsf toggle_customview ; initiate toggle to desired custom view -> pressure readings view will be shown return ; done ENDIF check_gas_needs_ascent: banksel int_O_ascent_pres_need movf int_O_ascent_pres_need+1,w ; get high byte from pres need of 1st tank iorwf int_O_ascent_pres_need+3,w ; inclusive or with high byte from pres need of 2nd tank iorwf int_O_ascent_pres_need+5,w ; inclusive or with high byte from pres need of 3rd tank iorwf int_O_ascent_pres_need+7,w ; inclusive or with high byte from pres need of 4th tank iorwf int_O_ascent_pres_need+9,w ; inclusive or with high byte from pres need of 5th tank banksel common btfsc WREG,int_invalid_flag ; check if invalid flag is set return ; YES - no further checking required btfsc WREG,int_warning_flag ; check if any gas has a pres_need >= pres_fill bsf message_warning ; YES - set warning flag btfsc WREG,int_warning_flag ; check if any gas has a pres_need >= pres_fill goto TFT_warning_gas_needs_warn ; Yes - show a warning btfsc WREG,int_attention_flag ; check if any gas has a pres_need >= pres_fill * threshold bsf message_attention ; YES - set attention flag btfsc WREG,int_attention_flag ; check if any gas has a pres_need >= pres_fill * threshold goto TFT_warning_gas_needs_att ; YES - show an attention bcf gas_needs_attention ; NO - clear flag for a new attention bcf gas_needs_warning ; clear flag for a new warning return check_warn_sensors_disagree: incf message_counter,F ; increase counter bsf message_warning ; YES - set warning flag goto TFT_warning_sensor_disagree ; show sensor disagree warning (and return) check_IBCD: TSTOSS opt_enable_IBCD ; IBCD warning activated? return ; NO - done movff char_O_deco_warnings,WREG ; YES - get deco warnings vector btfss WREG,IBCD_warning ; IBCD warning flag set? return ; NO - return incf message_counter,F ; YES - increase counter goto TFT_warning_IBCD ; write warning to display check_OC_gas_avail: tstfsz best_gas_number ; is a breathable gas available? return ; > 0 : a breathable gas is available btfsc FLAG_ccr_mode ; = 0 : problem - in CCR mode? bra check_OC_gas_avail_1 ; YES - real problem btfsc FLAG_pscr_mode ; NO - in PSCR mode? bra check_OC_gas_avail_1 ; YES - real problem return ; NO - neither CCR nor pSCR mode, suppress warning check_OC_gas_avail_1: btfsc FLAG_bailout_mode ; in bailout? return ; YES - suppress warning incf message_counter,F ; NO - increase counter bsf message_attention ; set attention flag goto TFT_warning_no_BO_gas ; show message (and return) advice_gas_change: bsf message_advice ; show advice sign incf message_counter,F ; increase counter goto TFT_advice_gas_change global restart_deco_engine global restart_deco_engine_wo_ceiling restart_deco_engine: ; invalidate ceiling movff int_O_ceiling+1,WREG bsf WREG,char_invalid_flag ; int_O_ceiling has its invalid flag on a char's position! movff WREG,int_O_ceiling+1 restart_deco_engine_wo_ceiling: ; invalidate deco data (stop table data) movff char_O_deco_gas+0,WREG bsf WREG,char_invalid_flag movff WREG,char_O_deco_gas+0 ; invalidate ascent time (normal plan) movff int_O_ascenttime+1,WREG bsf WREG,int_invalid_flag movff WREG,int_O_ascenttime+1 ; invalidate CNS at end of dive in normal plan movff int_O_normal_CNS_fraction+1,WREG bsf WREG,int_invalid_flag movff WREG,int_O_normal_CNS_fraction+1 ; restart deco engine movff char_O_main_status,WREG ; get current main engine configuration bcf WREG,DECO_COMPLETED_NORM ; eventually clear flag stating completion of normal plan bsf WREG,DECO_COMPLETED_ALT ; fake we came from alternative plan to force normal plan to be done next movff WREG,char_O_main_status ; write back new configuration movff char_O_deco_status,WREG ; get current deco engine status bcf WREG,DECO_STATUS_0_FLAG ; set status flags to... bcf WREG,DECO_STATUS_1_FLAG ; ... DECO_STATUS_START movff WREG,char_O_deco_status ; write back new configuration to restart deco computations inval_alternative_plan_data: ; invalidate ascent time (alternative plan) movff int_O_alternate_ascenttime+1,WREG bsf WREG,int_invalid_flag movff WREG,int_O_alternate_ascenttime+1 ; invalidate CNS at end of dive in alternative plan movff int_O_alternate_CNS_fraction+1,WREG bsf WREG,int_invalid_flag movff WREG,int_O_alternate_CNS_fraction+1 ; invalidate ascent gas needs movff int_O_ascent_pres_need+1,WREG bsf WREG,int_invalid_flag movff WREG,int_O_ascent_pres_need+1 IFDEF _rx_functions ; invalidate pressure needs (TR functions) movff int_O_pressure_need+1,WREG bsf WREG,int_not_avail_flag movff WREG,int_O_pressure_need+1 movff int_O_pressure_need+3,WREG bsf WREG,int_not_avail_flag movff WREG,int_O_pressure_need+3 ENDIF ; update display depended on NDL or deco mode bsf FLAG_TFT_display_ndl_or_deko return ;============================================================================= ; Simulator Mode ; global do_demo_divemode do_demo_divemode: call TFT_ClearScreen ; blank screen call option_save_all ; save all settings into EEPROM before starting simulation call deco_push_tissues_to_vault ; C-code: back-up status of the real tissues banksel common ; bank 1 ; +++ COMMENT OUT FOR TESTING PURPOSE ONLY !!! +++ bsf restore_deco_data ; restore tissue and CNS after simulator use ; +++ DO NOT COMMENT OUT IN OPERATIONAL USE !!! +++ bcf pressure_refresh btfss pressure_refresh ; wait for sensor bra $-2 bsf simulatormode_active ; set flag banksel char_I_bottom_depth ; compute dive ambient conditions movf char_I_bottom_depth,W mullw .100 movff PRODL,rel_pressure+0 movff PRODH,rel_pressure+1 movlw LOW (.1000) addwf PRODL,W movff WREG,sim_pressure+0 movlw HIGH (.1000) addwfc PRODH,W movff WREG,sim_pressure+1 banksel common ; bank 1 bsf divemode goto diveloop ; switch into dive mode END