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annotate src/convert.asm @ 234:57155164faad

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Show OSTC2-like active gas boxes in surface mode
author heinrichsweikamp
date Wed, 25 Feb 2015 13:57:30 +0100
parents 31088352ee32
children 653a3ab08062
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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0
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1 ;=============================================================================
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2 ;
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3 ; File convert.asm
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4 ;
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5 ; Converts register values to string
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6 ;
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7 ; Copyright (c) 2011, Matthias Heinrichs, HeinrichsWeikamp, all right reserved.
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8 ;=============================================================================
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9 ; HISTORY
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10 ; 2007-10-07 : [MH] Creation for OSTC sources
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11 ; 2010-12-10 : [jDG] Optimize macro size
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12 ;
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13
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14 #include "ostc3.inc" ; Mandatory header
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15
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16 ;=============================================================================
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17
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18 CBLOCK tmp+0x08 ; space for aa_wordprocessor
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19 temp3
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20 temp4
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21 cvt_flags2
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22 ; Reserved to tmp+0x10...
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23 ENDC
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24
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25 #define pre_zero_flag cvt_flags2,0
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26 #define all_zeros_flag cvt_flags2,1
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27 #define DP_done cvt_flags2,2
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28 #define DP_done2 cvt_flags2,3
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29 #define show_last3 cvt_flags2,4
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30 #define leading_zeros cvt_flags2,5
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31
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32 basic CODE
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33
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34 ;=============================================================================
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35 global output99_call
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36 output99_call:
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37 clrf ignore_digits
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38 incf ignore_digits,F
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39 clrf temp4
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40
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41 global output99
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42 output99:
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43 movlw d'99'
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44 cpfslt lo
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45 movwf lo ; Limit to 99
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46 movff lo,lo_temp
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47 clrf hi_temp
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48 bcf pre_zero_flag ; do not display leading zeros
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49
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50 LCD_val99_2:
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51 movlw b'00001010' ; 10
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52 movwf temp2
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53 clrf temp3
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54 rcall DEC2ASCII
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55
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56 movlw b'00000001' ; 1
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57 movwf temp2
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58 clrf temp3
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59 bsf pre_zero_flag ; last figure, display zero (0)
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60 rcall DEC2ASCII
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61 RETURN
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62
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63 global output99x_call
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64
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65 output99x_call:
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66 clrf ignore_digits
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67 incf ignore_digits,F
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68 clrf temp4
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69
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70 movlw d'99'
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71 cpfslt lo
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72 movwf lo ; Limit to 99
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73 movff lo, lo_temp
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74 clrf hi_temp
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75 bsf pre_zero_flag ; display leading zeros
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76 bra LCD_val99_2
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77
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78 global output8_call
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79
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80 output8_call:
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81 clrf ignore_digits
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82 incf ignore_digits,F
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83 clrf temp4
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84
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85 output8:
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86 movff lo, lo_temp
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87 clrf hi_temp
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88 bcf pre_zero_flag ; do not display leading zeros
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89
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90 movlw b'01100100' ; 100
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91 movwf temp2
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92 clrf temp3
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93 rcall DEC2ASCII
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94 bra LCD_val99_2
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95
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96 global output16_3_call
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97 global output16_call
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98 global output16
225
31088352ee32 BUGFIX: Show dives with >999mins divetime correctly
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99 output16_3_call: ; limit to 999
31088352ee32 BUGFIX: Show dives with >999mins divetime correctly
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100 bsf show_last3
31088352ee32 BUGFIX: Show dives with >999mins divetime correctly
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101 ; Limit to 3
31088352ee32 BUGFIX: Show dives with >999mins divetime correctly
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102 movlw .4
31088352ee32 BUGFIX: Show dives with >999mins divetime correctly
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103 cpfslt hi
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104 bra output16_3_call_2
31088352ee32 BUGFIX: Show dives with >999mins divetime correctly
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105 movlw .3
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106 cpfseq hi ; =3?
31088352ee32 BUGFIX: Show dives with >999mins divetime correctly
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107 bra output16_3_call_3 ; No, done.
31088352ee32 BUGFIX: Show dives with >999mins divetime correctly
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108 movlw .231 ; Limit to 231(+768=999...)
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109 cpfslt lo
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110 movwf lo
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111 bra output16_3_call_3 ; done.
31088352ee32 BUGFIX: Show dives with >999mins divetime correctly
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112 output16_3_call_2: ; Set to .999
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113 movlw LOW .999
31088352ee32 BUGFIX: Show dives with >999mins divetime correctly
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114 movwf lo
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115 movlw HIGH .999
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116 movwf hi
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117 output16_3_call_3:
0
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118 output16_call:
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119 clrf ignore_digits
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120 incf ignore_digits,F
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121 clrf WREG
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122 output16:
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123 movwf temp4 ; Passed from output16dp macro, cleared by others.
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124
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125 bcf all_zeros_flag ; do not display any zero from here unless there was at least one figure /zero
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126
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127 bsf leading_zeros
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128 tstfsz temp4 ; Display leading zeros at all?
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129 bcf leading_zeros
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130
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131 bsf DP_done2
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132 tstfsz temp4
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133 bcf DP_done2 ; decimal point not yet set
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134
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135 movff lo, lo_temp
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136 movff hi, hi_temp
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137 bcf pre_zero_flag ; do not display leading zeros
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138
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139 movlw b'00010000' ; 10000s
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140 movwf temp2
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141 movlw b'00100111'
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142 movwf temp3
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143 btfss show_last3 ; display only last three figures?
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144 rcall DEC2ASCII ; No, show all. Here: 5th order digit
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145
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146 movlw b'11101000' ; 1000s
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147 movwf temp2
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148 movlw b'00000011'
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149 movwf temp3
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150 btfsc DP_done2 ; Is there a decimal point at all?
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151 bra output16_2 ; no, use normal display mode
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152
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153 btfsc all_zeros_flag ; display any zero from here
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154 bra output16_1 ; there was a figure /zero already
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155
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156 bsf pre_zero_flag ; display figure if zero?
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157 decfsz temp4,W
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158 bcf pre_zero_flag ; No
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159
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160 output16_1:
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161 btfsc DP_done ; Decimal point set already?
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162 bsf pre_zero_flag ; Yes, so display the rest
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163 output16_2:
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164 btfss show_last3 ; display only last three figures?
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165 rcall DEC2ASCII ; No, show all. Here: 4th order digit
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166 bcf show_last3 ; Yes, so display the rest
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167
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168 movlw b'01100100' ; 100s
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169 movwf temp2
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170 clrf temp3
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171
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172 btfsc ignore_digit3 ; Ignore 3rd-5th digit?
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173 bra output16_5 ; Yes, skip the rest
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174
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175 btfsc DP_done2 ; Is there a decimal point at all?
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176 bra output16_3 ; no, use normal display mode
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177
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178 btfsc all_zeros_flag ; display any zero from here
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179 bra output16_2_1 ; there was a figure /zero already
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180
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181 bsf pre_zero_flag ; display figure if zero?
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182 decfsz temp4,W
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183 bcf pre_zero_flag ; No
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184
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185 output16_2_1:
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186 btfsc DP_done ; Decimal point set already?
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187 bsf pre_zero_flag ; Yes, so display the rest
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188 btfsc DP_done2 ; Is there a decimal point at all?
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189 bsf pre_zero_flag ; No, so display the rest
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190 output16_3:
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191 rcall DEC2ASCII ;3th order digit...
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192
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193 movlw b'00001010' ; 10s
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194 movwf temp2
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195 clrf temp3
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196 btfsc DP_done2
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197 bra output16_4
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198
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199 btfsc all_zeros_flag ; display any zero from here
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200 bra output16_3_1 ; there was a figure /zero already
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201
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202 bsf pre_zero_flag
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203 decfsz temp4,W
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204 bcf pre_zero_flag
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205
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206 output16_3_1:
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207 btfsc DP_done
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208 bsf pre_zero_flag
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209 btfsc DP_done2
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210 bsf pre_zero_flag
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211 output16_4:
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212 btfsc ignore_digit4 ; Ignore 4-5th digit?
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213 bra output16_5 ; Yes, skip the rest
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214 rcall DEC2ASCII ; 2nd order digit
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215
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216 movlw b'00000001' ; 1s
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217 movwf temp2
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218 clrf temp3
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219 bsf pre_zero_flag
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220 btfss ignore_digit5 ; Ignore 5th digit?
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221 rcall DEC2ASCII ; 1st order digit
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222 bcf ignore_digit5 ; yes, and clear flag
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223 output16_5:
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224 bcf ignore_digit4 ; Clear flag
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225 bcf ignore_digit3 ; Clear flag
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226 clrf ignore_digits
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227 incf ignore_digits,F
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228 bcf DP_done
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229 RETURN ; Done with convert.asm...
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230
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231 DEC2ASCII clrf temp1 ; converts into ASCII code
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232 DEC2ASCII_2 movf temp3,W
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233 subwf hi_temp,W
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234 btfss STATUS,C
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235 bra DEC2ASCII_4
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236 bnz DEC2ASCII_3
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237
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238 movf temp2,W
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239 subwf lo_temp,W
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240 btfss STATUS,C
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241 bra DEC2ASCII_4
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242
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243 DEC2ASCII_3 movf temp3,W
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244 subwf hi_temp,F
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245 movf temp2,W
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246 subwf lo_temp,F
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247 btfss STATUS,C
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248 decf hi_temp,F
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249 incf temp1,F
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250 bsf pre_zero_flag
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251 bra DEC2ASCII_2
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252
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253 DEC2ASCII_4
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254 decfsz ignore_digits,F
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255 return
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256 incf ignore_digits,F ; so ignore_digits stays zero for the test above
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257 movlw '0' ; Offset for Ascii-value
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258 addwf temp1,W
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259 btfsc pre_zero_flag ; is this a leading zero?
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260 bra DEC2ASCII_4_1 ; no
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261 btfsc leftbind
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262 bra DEC2ASCII_6
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263 movlw ' ' ; instead of leading zeros a space!
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264 bra DEC2ASCII_5
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265 DEC2ASCII_4_1:
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266 bsf all_zeros_flag ; display any zero from here
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267 DEC2ASCII_5
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268 movwf POSTINC2
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269 DEC2ASCII_6
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270 decfsz temp4,F ; Set decimal point?
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271 RETURN ; No
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272 movlw "." ; Yes
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273 movwf POSTINC2
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274 bsf DP_done
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275 RETURN
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276
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277 END