annotate code_part1/OSTC_code_asm_part1/altimeter.asm @ 199:f5e9db793dd3

Minor missing translations + MOD/END/EAD in translation table. + ON/OFF (French). + Desat in logbook. + Set date/time menu positionning. + Simulator menu positionning.
author JeanDo
date Mon, 14 Feb 2011 17:23:08 +0100
parents 53b16a746166
children d19445e0cb2f
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1 ;=============================================================================
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2 ;
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3 ; File altimeter.asm
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4 ;
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5 ; Altimeter function prototype.
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6 ;
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7 ; This program is free software: you can redistribute it and/or modify
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8 ; it under the terms of the GNU General Public License as published by
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9 ; the Free Software Foundation, either version 3 of the License, or
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10 ; (at your option) any later version.
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11 ;
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12 ; This program is distributed in the hope that it will be useful,
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13 ; but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 ; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 ; GNU General Public License for more details.
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16 ;
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17 ; You should have received a copy of the GNU General Public License
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18 ; along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 ;
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20 ; Copyright (c) 2010, JD Gascuel.
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21 ;=============================================================================
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22 ; HISTORY
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23 ; 2010-12-15 : [jDG] First prototype with quadratic polynomial ant tp°.
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24 ; 2010-12-28 : [jDG] Use MPLAB Math and C libraries for FP32 computations.
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25 ; 2011-01-02 : [jDG] Edit reference pressure by 0.25 mbar.
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26 ;
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27 ; Known bug: Simulator reset altitude and reference...
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28
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29 altimeter_calc:
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30 movlb HIGH(pressureAvg)
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31
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32 movlw HIGH(4*.900) ; Is presure ref bigger than 900mbar
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33 cpfsgt pressureRef+1
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34 bra altimeter_reset ; No: Should do a reset now.
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35
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36 movlw HIGH(4*.1100) ; Is ref pressure bigger than 1100mbar ?
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37 cpfsgt pressureRef+1
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38 bra altimeter_1 ; No: ok it is valid...
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39
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40 ; Reset computation. Eg. after a sleep, enables to faster restart with correct
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41 ; values...
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42 altimeter_reset:
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43 movlb HIGH(pressureAvg)
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44 movlw LOW(4*.1013+1) ; Init see level at 1013,25 mbar.
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45 movwf pressureRef+0
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46 movlw HIGH(4*.1013+1)
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47 movwf pressureRef+1
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48
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49 clrf pressureSum+0 ; Init averaging area
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50 clrf pressureSum+1
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51 clrf pressureCount
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52
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53 movff amb_pressure+0,pressureAvg+0 ; And init first average.
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54 movff amb_pressure+1,pressureAvg+1
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55
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56 movlw 4 ; And multiply AVG by 16 to be coherent.
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57 altimeter_reset_1:
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58 bcf STATUS,C
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59 rlcf pressureAvg+0
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60 rlcf pressureAvg+1
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61 decfsz WREG
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62 bra altimeter_reset_1
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63
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64 rcall compute_altitude
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65
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66 movlb 1 ; Back to normal bank1.
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67 return
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68
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69 altimeter_1:
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70 ;---- Do a bank-safe 16bit summing -----------------------------------
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71 movff amb_pressure+0,WREG
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72 addwf pressureSum+0,F
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73 movff amb_pressure+1,WREG
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74 addwfc pressureSum+1,F
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75
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76 incf pressureCount ; Increment count too.
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77 movlw .32 ; Already 32 done ?
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78 subwf pressureCount,W
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79 bnz altimeter_4 ; NO: skip update.
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80
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81 ;---- Update altitude every 32 pressure measures --------------------
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82 bcf STATUS,C ; Divide by 2, to store pressure x16
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83 rrcf pressureSum+1
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84 rrcf pressureSum+0
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85
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86 movff pressureSum+0,pressureAvg+0
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87 movff pressureSum+1,pressureAvg+1
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88
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89 rcall compute_altitude ; Compute from the averaged value...
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90
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91 clrf pressureSum+0 ; And reset sum zone for next averaging.
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92 clrf pressureSum+1
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93 clrf pressureCount
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94
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95 altimeter_4:
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96 movlb 1 ; make sure to be in normal bank1
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97 return
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98
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99 ;---- Display result -------------------------------------------------
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100 altimeter_display:
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101 GETCUSTOM8 .49 ; Check CF#49
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102 btfss WREG,0 ; Enabled ?
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103 return ; NO: return
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104
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105 WIN_TOP .35 ; Custom view drawing zone...
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106 WIN_LEFT .90
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107 WIN_INVERT .0
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108 WIN_FONT .0
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109 call PLED_standard_color
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110
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111 STRCPY "Alt: "
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112
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113 movff altitude+0,lo ; BANK-SAFE read altitude
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114 movff altitude+1,hi
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115 btfss hi,7 ; Is altitude negativ ?
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116 bra altimeter_2 ; No: just print it
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117
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118 PUTC '-' ; Yes: print the minus sign
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119 comf hi ; And do a 16bit 2-complement.
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120 comf lo
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121 infsnz lo
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122 incf hi
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123
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124 altimeter_2:
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125 bsf leftbind
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126 output_16
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127 bcf leftbind
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128
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129 STRCAT_PRINT "m "
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130 return
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131
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132 ;=============================================================================
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133 ; Compute altitude, using the formula:
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134 ; H(P) = 18.787 log10(P0/P) (Log base 10)
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135
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136 ;---- Interface the the Mayh library -----------------------------------------
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137 extern __AARGB2 ; A float in fA2, fA1, fA0, fAExo
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138 extern __BARGB2 ; B float in fB2, fB1, fB0, fBExo
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139 extern FLO1632U ; convert uint16 fA+1 --> fp32 fA
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140 extern FPD32 ; fp32 divide fA/fB --> fA
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141 extern FPM32 ; fp32 multiply fA*fB --> fA
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142 extern INT3216 ; convert fp32 fA --> int16 fA+1
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143 #define fA __AARGB2
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144 #define fB __BARGB2
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145
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146 ;---- Interface to the C library ---------------------------------------------
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147 extern __AARGB3
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148 extern log10 ; float32 log(auto float32)
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149 #define fRet __AARGB3
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150
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151 compute_altitude:
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152 ; Setup C-code stack, to enable calling the log() function.
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153 lfsr FSR1, c_code_data_stack
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154 lfsr FSR2, c_code_data_stack
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155
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156 ; Convert pressure to float, --> fB
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157 movff pressureAvg+0, fA+1
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158 movff pressureAvg+1, fA+2
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159 call FLO1632U ; u16 fA[1:2] --> fp32 fA
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160 movff fA+0, fB+0
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161 movff fA+1, fB+1
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162 movff fA+2, fB+2
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163 movff fA+3, fB+3
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164
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165 ; Convert sea-level reference pressure to float, --> fB
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166 movff pressureRef+0, fA+1 ; Get sea level pressure.
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167 movff pressureRef+1, fA+2
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168 bcf STATUS,C ; Multiply by 4.
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169 rlcf fA+1
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170 rlcf fA+2
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171 bcf STATUS,C
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172 rlcf fA+1
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173 rlcf fA+2
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174 call FLO1632U ; to float: u16 fA[1:2] --> fp32 fA
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175
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176 ; Divide
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177 call FPD32 ; fp32 X/Y --> X
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178
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179 ; log10()
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180 movff fA+0, POSTINC1 ; Push X to stack
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181 movff fA+1, POSTINC1
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182 movff fA+2, POSTINC1
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183 movff fA+3, POSTINC1
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184 call log10 ; log(P0/P)
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185
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186 movf POSTDEC1,F,ACCESS ; pop argument
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187 movf POSTDEC1,F,ACCESS
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188 movf POSTDEC1,F,ACCESS
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189 movf POSTDEC1,F,ACCESS
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190
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191 ; Move log10(P0/P) to fB
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192 movff fRet+0,fB+0 ; move result to fB
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193 movff fRet+1,fB+1
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194 movff fRet+2,fB+2
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195 movff fRet+3,fB+3
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196
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197 ; Multiply by scaling factor for meters, and standatd atmosphere.
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198 movlw LOW(.18787)
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199 movff WREG, fA+1
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200 movlw HIGH(.18787)
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201 movff WREG, fA+2
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202 call FLO1632U ; u16 fA[1:2] --> fp32 fA
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203 call FPM32 ; altitute --> fp32 fA
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204
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205 ; Convert result to int16 --> altitude.
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206 call INT3216 ; fp32 fA --> int16 fA+1
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207 movff fA+1, altitude+0
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208 movff fA+2, altitude+1
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209
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210 return
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211
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212 ;=============================================================================
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213 ; Altimeter menu
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214 ;
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215 ; Edit reference (where altitude = 0) pressure, while displaying corresponding
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216 ; altitude.
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217 ;
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218 altimeter_menu:
132
49bb155ddfbf Fix altimeter after simulator (zero divide -> 32767m)
JeanDo
parents: 125
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219 movff pressureRef+0,WREG ; Make sure it is initialized...
49bb155ddfbf Fix altimeter after simulator (zero divide -> 32767m)
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parents: 125
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220 movff pressureRef+1,fA
49bb155ddfbf Fix altimeter after simulator (zero divide -> 32767m)
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parents: 125
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221 iorwf fA
49bb155ddfbf Fix altimeter after simulator (zero divide -> 32767m)
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222 bnz altimeter_menu_1 ; Yes: skip reset...
49bb155ddfbf Fix altimeter after simulator (zero divide -> 32767m)
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223 rcall altimeter_reset
49bb155ddfbf Fix altimeter after simulator (zero divide -> 32767m)
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parents: 125
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224
49bb155ddfbf Fix altimeter after simulator (zero divide -> 32767m)
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225 altimeter_menu_1:
125
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226 call PLED_ClearScreen ; Menu header.
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227 call PLED_standard_color
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228 call PLED_topline_box
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229 WIN_INVERT .1 ; Init new Wordprocessor
174
53b16a746166 Multi-lang
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230 DISPLAYTEXTH .288 ; Title bar
125
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231
170
0f7ca37b1412 Altimeter: auto reset
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232 movlw 2 ; Start menu on line 2.
125
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233 movwf menupos
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234
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235 altimeter_menu_2:
174
53b16a746166 Multi-lang
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parents: 170
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236 WIN_INVERT 0
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237 WIN_FONT 0
125
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238 WIN_LEFT .20 ; First line:
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239 WIN_TOP .35
174
53b16a746166 Multi-lang
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parents: 170
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240 lfsr FSR2,letter
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241 OUTPUTTEXTH .289 ; Sea ref:
125
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242
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243 movff pressureRef+0, lo
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244 movff pressureRef+1, hi
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245 bcf STATUS,C ; Divide ref pressure by 4
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246 rrcf hi ; to get the integer part of it:
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247 rrcf lo
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248 bcf STATUS,C
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249 rrcf hi
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250 rrcf lo
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251 bsf leftbind
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252 output_16
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253
170
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254 STRCAT_PRINT " mbar "
125
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255
170
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parents: 166
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256 WIN_TOP .65 ; Action enable
174
53b16a746166 Multi-lang
JeanDo
parents: 170
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257 lfsr FSR2, letter
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parents: 170
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258 OUTPUTTEXTH .290
125
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259 GETCUSTOM8 .49
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260 btfss WREG,0
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261 bra alt_menu_1
199
f5e9db793dd3 Minor missing translations
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262 OUTPUTTEXT .130 ; ON
125
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263 bra alt_menu_2
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264 alt_menu_1:
199
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265 OUTPUTTEXT .131 ; OFF
125
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266 alt_menu_2:
199
f5e9db793dd3 Minor missing translations
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267 call word_processor
125
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268
174
53b16a746166 Multi-lang
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parents: 170
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269 DISPLAYTEXTH .291 ; Action reset
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parents: 170
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270 DISPLAYTEXTH .292 ; Action add
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271 DISPLAYTEXTH .293 ; Action sub
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272 DISPLAYTEXT .011 ; Action exit
125
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273
174
53b16a746166 Multi-lang
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parents: 170
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274 WIN_LEFT .85 ; Bottom right.
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parents: 170
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275 lfsr FSR2, letter
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parents: 170
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276 OUTPUTTEXTH .294 ; "Alt: "
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277
170
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278 movff altitude+0, lo
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279 movff altitude+1, hi
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280 btfss hi,7 ; Is altitude negativ ?
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parents: 166
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281 bra altimeter_menu_3 ; No: just print it
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parents: 166
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282
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parents: 166
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283 PUTC '-' ; Yes: print the minus sign
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parents: 166
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284 comf hi ; And do a 16bit 2-complement.
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285 comf lo
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parents: 166
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286 infsnz lo
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parents: 166
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287 incf hi
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parents: 166
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288
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parents: 166
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289 altimeter_menu_3:
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parents: 166
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290 bsf leftbind
0f7ca37b1412 Altimeter: auto reset
JeanDo
parents: 166
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291 output_16
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parents: 166
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292 bcf leftbind
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parents: 166
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293 STRCAT_PRINT "m "
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parents: 166
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294
125
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295 alt_menu_loop:
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296 call PLED_menu_cursor ; Display cursor
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297 bcf switch_left ; reset buttons state
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298 bcf switch_right
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299
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300 alt_menu_loop1: ; Wait for button.
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parents:
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301 btfsc switch_right ; [[MENU]] button
2907b42c195b Altimeter:
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parents:
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302 bra alt_menu_next
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parents:
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303
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parents:
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304 btfsc switch_left ;[[ENTER]] button
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parents:
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305 bra alt_menu_do_it
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parents:
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306
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307 btfsc divemode ; Diving stared ?
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308 goto restart ; YES: quit this menu !
2907b42c195b Altimeter:
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309
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310 btfsc onesecupdate ; Check what should be every 1sec.
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311 call timeout_surfmode
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312
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313 btfsc onesecupdate
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314 call set_dive_modes
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315
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316 bcf onesecupdate ; end of 1sek. tasks
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parents:
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317
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parents:
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318 btfsc sleepmode ; Sleep mode entered ?
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parents:
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319 bra alt_menu_exit
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parents:
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320
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321 bra alt_menu_loop1
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322
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323 ;---- Move to next line ------------------------------------------------------
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324
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325 alt_menu_next:
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326 incf menupos ; next line.
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327 movlw .7
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parents:
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328 cpfseq menupos ; Below last line ?
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parents:
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329 bra alt_menu_loop
170
0f7ca37b1412 Altimeter: auto reset
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parents: 166
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330 movlw .2 ; Yes: back to line no 2.
125
2907b42c195b Altimeter:
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parents:
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331 movwf menupos
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332 bra alt_menu_loop
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333
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parents:
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334 ;----- Execute menu line -----------------------------------------------------
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335
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336 alt_menu_do_it:
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parents:
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337 movf menupos,W ; test line value
170
0f7ca37b1412 Altimeter: auto reset
JeanDo
parents: 166
diff changeset
338 addlw -2
0f7ca37b1412 Altimeter: auto reset
JeanDo
parents: 166
diff changeset
339 bz alt_menu_enable ; 2 --> reset
0f7ca37b1412 Altimeter: auto reset
JeanDo
parents: 166
diff changeset
340 dcfsnz WREG
0f7ca37b1412 Altimeter: auto reset
JeanDo
parents: 166
diff changeset
341 bra alt_menu_reset ; 3 --> +1
125
2907b42c195b Altimeter:
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parents:
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342 dcfsnz WREG
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parents:
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343 bra alt_menu_plus1 ; 4 --> +1
2907b42c195b Altimeter:
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parents:
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344 dcfsnz WREG
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parents:
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345 bra alt_menu_minus1 ; 5 --> -1
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parents:
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346 bra alt_menu_exit ; else --> exit
2907b42c195b Altimeter:
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parents:
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347
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parents:
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348 ;---- Toggle altimeter (CF#49) -----------------------------------------------
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parents:
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349 alt_menu_enable:
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parents:
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350 GETCUSTOM8 .49 ; Read CF#49
2907b42c195b Altimeter:
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parents:
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351 btg WREG,0 ; Toggle boolean value
2907b42c195b Altimeter:
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parents:
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352 movwf EEDATA
2907b42c195b Altimeter:
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parents:
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353 movlw d'1' ; Upper EEPROM Bank
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parents:
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354 movwf EEADRH
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parents:
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355 movlw 4*(.49-.32) + 0x82 ; CF#49 low byte address in EEPROM
2907b42c195b Altimeter:
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356 movwf EEADR
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357 call write_eeprom
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parents:
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358 bra altimeter_menu_2
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parents:
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359
170
0f7ca37b1412 Altimeter: auto reset
JeanDo
parents: 166
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360 ;---- Reset sea level pressure to reference ----------------------------------
0f7ca37b1412 Altimeter: auto reset
JeanDo
parents: 166
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361 alt_menu_reset:
0f7ca37b1412 Altimeter: auto reset
JeanDo
parents: 166
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362 rcall altimeter_reset
0f7ca37b1412 Altimeter: auto reset
JeanDo
parents: 166
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363 movlb 1 ; Go back to normal bank1
0f7ca37b1412 Altimeter: auto reset
JeanDo
parents: 166
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364 bra altimeter_menu_2
0f7ca37b1412 Altimeter: auto reset
JeanDo
parents: 166
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365
125
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parents:
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366 ;---- Increment sea level pressure -------------------------------------------
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parents:
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367 alt_menu_plus1:
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parents:
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368 movlb HIGH(pressureRef) ; Setup our own ram bank
170
0f7ca37b1412 Altimeter: auto reset
JeanDo
parents: 166
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369 movlw 4
0f7ca37b1412 Altimeter: auto reset
JeanDo
parents: 166
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370 addwf pressureRef+0,F ; 16bit inc.
0f7ca37b1412 Altimeter: auto reset
JeanDo
parents: 166
diff changeset
371 movlw 0
0f7ca37b1412 Altimeter: auto reset
JeanDo
parents: 166
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372 addwfc pressureRef+1,F
125
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parents:
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373 bra alt_menu_recompute ; then recompute altitude.
2907b42c195b Altimeter:
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parents:
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374
2907b42c195b Altimeter:
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parents:
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375 ;---- Decrement sea level pressure -------------------------------------------
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parents:
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376 alt_menu_minus1:
2907b42c195b Altimeter:
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parents:
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377 movlb HIGH(pressureRef) ; Setup our own ram bank
170
0f7ca37b1412 Altimeter: auto reset
JeanDo
parents: 166
diff changeset
378 movlw -4
0f7ca37b1412 Altimeter: auto reset
JeanDo
parents: 166
diff changeset
379 addwf pressureRef+0,F ; 16bit decrement
0f7ca37b1412 Altimeter: auto reset
JeanDo
parents: 166
diff changeset
380 movlw -1
0f7ca37b1412 Altimeter: auto reset
JeanDo
parents: 166
diff changeset
381 addwfc pressureRef+1,F
125
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parents:
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382
2907b42c195b Altimeter:
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parents:
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383 alt_menu_recompute:
2907b42c195b Altimeter:
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parents:
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384 rcall compute_altitude ; Recompute altitude
2907b42c195b Altimeter:
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parents:
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385 movlb 1 ; Go back to normal bank1
2907b42c195b Altimeter:
JeanDo
parents:
diff changeset
386 bra altimeter_menu_2
2907b42c195b Altimeter:
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parents:
diff changeset
387
2907b42c195b Altimeter:
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parents:
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388 ;---- Exit altimeter menu ----------------------------------------------------
2907b42c195b Altimeter:
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parents:
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389 alt_menu_exit:
2907b42c195b Altimeter:
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parents:
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390 movlw .5 ; reset position to Altimeter line.
2907b42c195b Altimeter:
JeanDo
parents:
diff changeset
391 movwf menupos ;
2907b42c195b Altimeter:
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parents:
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392 goto more_menu2 ; in the More... menu.