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1 ; OSTC - diving computer code
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2 ; Copyright (C) 2008 HeinrichsWeikamp GbR
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3
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4 ; This program is free software: you can redistribute it and/or modify
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5 ; it under the terms of the GNU General Public License as published by
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6 ; the Free Software Foundation, either version 3 of the License, or
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7 ; (at your option) any later version.
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8
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9 ; This program is distributed in the hope that it will be useful,
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10 ; but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 ; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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12 ; GNU General Public License for more details.
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13
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14 ; You should have received a copy of the GNU General Public License
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15 ; along with this program. If not, see <http://www.gnu.org/licenses/>.
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16
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17
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18 ; converts hex values to dez values
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19 ; written by: Matthias Heinrichs, info@heinrichsweikamp.com
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20 ; written: 13/10/07
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103
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21 ; 10/12/2010 jDG: optimize macro size.
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22 ; last updated: 10/12/2010
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0
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23 ; known bugs:
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24 ; ToDo: clean up!!!
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25
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26
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27 output_16_3 macro ; displays only last three figures from a 16Bit value (0-999)
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103
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28 call output16_3_call
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0
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29 endm
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30
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31 output_16dp macro temp4 ; 16Bit with decimal point
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32 movlw temp4 ; Temp4 stores position for decimal point
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33 call output16
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34 endm
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35
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36 output_16 macro ; 16Bit Normal
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103
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37 call output16_call
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0
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38 endm
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39
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40 output_8 macro ; 8 Bit Normal
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103
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41 call output8_call
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42 endm
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43
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44 output_99 macro ; displays only last two figures from a 8Bit value (0-99)
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45 call output99_call
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46 endm
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47
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48 output_99x macro ; displays only last two figures from a 8Bit value with leading zero (00-99)
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49 call output99x_call
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50 endm
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51
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52 output99_call:
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0
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53 clrf ignore_digits
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54 incf ignore_digits,F
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55 clrf temp4
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56
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57 output99:
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58 movlw d'99'
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59 cpfslt lo
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60 movwf lo ; Limit to 99
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64
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61 movff lo,lo_temp
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0
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62 clrf hi_temp
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63 bcf pre_zero_flag ; do not display leading zeros
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64
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65 LCD_val99_2:
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66 movlw b'00001010' ; 10
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67 movwf temp2
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68 clrf temp3
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69 rcall DEC2ASCII
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70
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71 movlw b'00000001' ; 1
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72 movwf temp2
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73 clrf temp3
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74 bsf pre_zero_flag ; last figure, display zero (0)
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75 rcall DEC2ASCII
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76 RETURN
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77
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103
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78 output99x_call:
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79 clrf ignore_digits
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80 incf ignore_digits,F
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81 clrf temp4
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82
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64
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83 movlw d'99'
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84 cpfslt lo
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85 movwf lo ; Limit to 99
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0
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86 movff lo, lo_temp
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87 clrf hi_temp
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88 bsf pre_zero_flag ; display leading zeros
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89 bra LCD_val99_2
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90
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103
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91 output8_call:
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92 clrf ignore_digits
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93 incf ignore_digits,F
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94 clrf temp4
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95
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0
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96 output8
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97 movff lo, lo_temp
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98 clrf hi_temp
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99 bcf pre_zero_flag ; do not display leading zeros
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100
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101 movlw b'01100100' ; 100
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102 movwf temp2
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103 clrf temp3
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104 rcall DEC2ASCII
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105 bra LCD_val99_2
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106
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103
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107 output16_3_call:
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108 clrf ignore_digits
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109 incf ignore_digits,F
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110 clrf WREG
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111 bra output16
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112
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113 output16_call:
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114 clrf ignore_digits
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115 incf ignore_digits,F
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116 clrf WREG
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117
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0
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118 output16
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103
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119 movwf temp4 ; Passed from output16dp macro, cleared by others.
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120
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0
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121 bcf all_zeros_flag ; do not display any zero from here unless there was at least one figure /zero
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122
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123 bsf leading_zeros
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124 incf temp4,1
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125 decfsz temp4,F
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126 bcf leading_zeros
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127
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128 bsf DP_done2
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129 incf temp4,1
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130 decfsz temp4,F
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131 bcf DP_done2 ; decimal point not yet set
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132
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133 movff lo, lo_temp
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134 movff hi, hi_temp
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135 bcf pre_zero_flag ; do not display leading zeros
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136
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137 movlw b'00010000' ; 10000s
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138 movwf temp2
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139 movlw b'00100111'
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140 movwf temp3
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141 btfss show_last3 ; display only last three figures?
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142 rcall DEC2ASCII
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143
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144 movlw b'11101000' ; 1000s
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145 movwf temp2
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146 movlw b'00000011'
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147 movwf temp3
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148 btfsc DP_done2 ; Is there a decimal point at all?
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149 bra output16_2 ; no, use normal display mode
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150
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151 btfsc all_zeros_flag ; display any zero from here
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152 bra output16_1 ; there was a figure /zero already
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153
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154 bsf pre_zero_flag ; display figure if zero?
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155 decfsz temp4,W
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156 bcf pre_zero_flag ; No
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157
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158 output16_1:
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159 btfsc DP_done ; Decimal point set already?
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160 bsf pre_zero_flag ; Yes, so display the rest
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161 output16_2:
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162 btfss show_last3 ; display only last three figures?
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163 rcall DEC2ASCII
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164 bcf show_last3 ; No, so display the rest
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165
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166 movlw b'01100100' ; 100s
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167 movwf temp2
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168 clrf temp3
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169
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170 btfsc ignore_digit3 ; Ignore 3rd-5th digit?
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171 bra output16_5 ; Yes, skip the rest
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172
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173 btfsc DP_done2 ; Is there a decimal point at all?
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174 bra output16_3 ; no, use normal display mode
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175
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176 btfsc all_zeros_flag ; display any zero from here
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177 bra output16_2_1 ; there was a figure /zero already
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178
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179 bsf pre_zero_flag ; display figure if zero?
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180 decfsz temp4,W
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181 bcf pre_zero_flag ; No
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182
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183 output16_2_1:
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184 btfsc DP_done ; Decimal point set already?
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185 bsf pre_zero_flag ; Yes, so display the rest
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186 btfsc DP_done2 ; Is there a decimal point at all?
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187 bsf pre_zero_flag ; No, so display the rest
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188 output16_3:
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189 rcall DEC2ASCII
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190
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191 movlw b'00001010' ; 10s
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192 movwf temp2
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193 clrf temp3
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194 btfsc DP_done2
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195 bra output16_4
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196
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197 btfsc all_zeros_flag ; display any zero from here
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198 bra output16_3_1 ; there was a figure /zero already
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199
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200 bsf pre_zero_flag
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201 decfsz temp4,W
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202 bcf pre_zero_flag
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203
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204 output16_3_1:
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205 btfsc DP_done
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206 bsf pre_zero_flag
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207 btfsc DP_done2
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208 bsf pre_zero_flag
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209 output16_4:
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210 btfsc ignore_digit4 ; Ignore 4-5th digit?
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211 bra output16_5 ; Yes, skip the rest
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212 rcall DEC2ASCII
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213
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214 movlw b'00000001' ; 1s
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215 movwf temp2
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216 clrf temp3
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217 bsf pre_zero_flag
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218 btfss ignore_digit5 ; Ignore 5th digit?
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219 rcall DEC2ASCII ; No!
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220 bcf ignore_digit5 ; yes, and clear flag
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221 output16_5:
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222 bcf ignore_digit3 ; Clear flag
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223 clrf ignore_digits
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224 incf ignore_digits,F
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225 bcf DP_done
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226 RETURN
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227
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228 DEC2ASCII clrf temp1 ; converts into ASCII code
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229 DEC2ASCII_2 movf temp3,W
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230 subwf hi_temp,0
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231 btfss STATUS,C
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232 bra DEC2ASCII_4
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233 bnz DEC2ASCII_3
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234
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235 movf temp2,W
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236 subwf lo_temp,0
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237 btfss STATUS,C
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238 bra DEC2ASCII_4
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239
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240 DEC2ASCII_3 movf temp3,W
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241 subwf hi_temp,1
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242 movf temp2,W
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243 subwf lo_temp,1
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244 btfss STATUS,C
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245 decf hi_temp,1
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246 incf temp1,1
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247 bsf pre_zero_flag
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248 bra DEC2ASCII_2
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249
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250 DEC2ASCII_4
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251 decfsz ignore_digits,F
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252 return
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253 incf ignore_digits,F
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254 movlw '0' ; Offset for Ascii-value
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255 addwf temp1,0
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256 btfsc pre_zero_flag ; is this a leading zero?
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257 bra DEC2ASCII_4_1 ; no
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258 btfsc leftbind
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259 bra DEC2ASCII_6
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260 movlw ' ' ; instead of leading zeros a space!
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261 bra DEC2ASCII_5
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262
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263 DEC2ASCII_4_1:
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264 bsf all_zeros_flag ; display any zero from here
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265 DEC2ASCII_5
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266 movwf POSTINC2
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267 DEC2ASCII_6
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268 decfsz temp4,F ; Set decimal point?
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269 RETURN ; No
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270 movlw "." ; Yes
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271 movwf POSTINC2
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272 bsf DP_done
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273 RETURN |
