annotate code_part1/OSTC_code_asm_part1/displaytext.asm @ 154:a52ba692ad7f

charger test
author heinrichsweikamp
date Fri, 14 Jan 2011 17:54:41 +0100
parents 3e351e25f5d1
children e56f80318b58
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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 ; Displays from text_table_vx.asm
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19 ; written by: Matthias Heinrichs, info@heinrichsweikamp.com
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20 ; written: 10/30/05
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21 ; last updated: 100730
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22 ; known bugs:
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23 ; ToDo:
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24
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25
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26 ; These macros output to POSTINC only
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27 OUTPUTTEXT macro textnumber ; For Texts 1-254
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28 movlw textnumber
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29 call displaytext0
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30 endm
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31
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32 OUTPUTTEXTH macro textnumber ; For Texts 255-511
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33 movlw LOW textnumber ; Use only Lower 8 Bit
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34 call displaytext0_h
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35 endm
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36
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37 displaytext0_h:
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38 bsf displaytext_high ; Highbit set
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39 rcall displaytext0
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40 return
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41
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42 displaytext0:
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43 bsf output_to_postinc_only
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44 rcall displaytext1
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45 bcf output_to_postinc_only
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46 return
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47
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48 ; These macros output to POSTINC and call the wordprocessor
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49 DISPLAYTEXT macro textnumber
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50 movlw textnumber
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51 call displaytext1
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52 endm
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53
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54 DISPLAYTEXTH macro textnumber
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55 movlw LOW textnumber ; Use only Lower 8 Bit
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56 call displaytext1h
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57 endm
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58
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59 displaytext1h:
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60 bsf displaytext_high ; Highbit set
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61 rcall displaytext1
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62 return
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63
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64 displaytext1:
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65 movwf textnumber
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66 movlw b'10000000'
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67 movwf EECON1
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68
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69 clrf TBLPTRU
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70 movlw HIGH (textpos_pointer-4)
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71 movwf TBLPTRH
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72 movlw LOW (textpos_pointer-4) ; base address -4 for position table
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73 movwf TBLPTRL
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74
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75 movff textnumber,xA+0
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76 movlw d'0'
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77 btfsc displaytext_high ; Highbit set?
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78 movlw d'1' ; Yes!
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79 movwf xA+1 ; Set High Bit
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80
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81 bcf STATUS,C
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82 rlcf xA+0,F
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83 rlcf xA+1,F ; times 2 for adress
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84
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85 movlw d'2'
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86 addwf xA+0,F
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87 movlw d'0'
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88 addwfc xA+1,F ; + 2
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89
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90 movf xA+0,W
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91 addwf TBLPTRL,F ; set adress, data can be read
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92 movf xA+1,W
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93 addwfc TBLPTRH,F ; High byte, if required
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94
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95 TBLRD*+
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96 btfss output_to_postinc_only ; output to postinc only?
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97 movff TABLAT,win_leftx2 ; No, write coordinates
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98
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99 TBLRD*+
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100 btfss output_to_postinc_only ; output to postinc only?
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101 movff TABLAT,win_top ; No, write coordinates
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102
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103 movlw d'0'
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104 movff WREG,win_font ; Bank0 Variable...
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105
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106 clrf textaddress+0
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107 clrf textaddress+1
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108 clrf TBLPTRH ; Set Pointer for textlength table
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109 clrf TBLPTRU
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110 movlw LOW textlength_pointer
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111 movwf TBLPTRL
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112 bra displaytext1b
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113
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114 displaytext1a:
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115 bcf displaytext_high ; Clear flag
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116 ; Get textadress from textlength table
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117 displaytext1b:
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118 TBLRD*+
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119 movf TABLAT,W
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120 addwf textaddress+0,F
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121 movlw d'0'
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122 addwfc textaddress+1,F
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123 decfsz textnumber,F
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124 bra displaytext1b
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125
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126 btfsc displaytext_high ; Highbit set?
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127 bra displaytext1a ; Yes, add 256 loops
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128
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129 displaytext2: ; copies text to wordprocessor
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130 clrf TBLPTRU
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131 movlw LOW text_pointer
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132 addwf textaddress+0,W
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133 movwf TBLPTRL
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134 movlw HIGH text_pointer ; Base address Texts
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135 addwfc textaddress+1,W
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136 movwf TBLPTRH
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137
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138 btfss output_to_postinc_only ; output to postinc2 only?
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139 lfsr FSR2,letter ; no!
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140
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141 displaytext2a:
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142 TBLRD*+
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143 movlw '}' ; Text finished?
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144 cpfseq TABLAT
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145 bra displaytext3
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146 bra display_text_exit
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147
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148 displaytext3:
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149 movff TABLAT,POSTINC2
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150
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151 TBLRD*+
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152 movlw '}' ; Text finished?
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153 cpfseq TABLAT
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154 bra displaytext4
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155 bra display_text_exit
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156 displaytext4:
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157 movff TABLAT,POSTINC2
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158 bra displaytext2a
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159
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160 display_text_exit:
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161 btfss output_to_postinc_only ; output to postinc only?
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162 call word_processor
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163 return