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1 ;=============================================================================
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2 ;
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3 ; File strings.inc
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4 ;
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5 ; Implementation code various string functions.
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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 ; 2010-12-02 : [jDG] Creation...
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24 ;
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25 ; RATIONALS for STRCAT / STRCPY / STRCAT_PRINT / STRCPY_PRINT:
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26 ; * Gain PROM space: each time a string operation is done, we have a bunch
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27 ; of lines in the style:
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28 ; movlw '+'
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29 ; movwf POSTINC2
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30 ; movlw '/'
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31 ; movwf POSTINC2
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32 ; movlw '-'
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33 ; movwf POSTINC2
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34 ; movlw ':'
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35 ; movwf POSTINC2
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36 ; call word_processor
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37 ; which takes 20 bytes of PROM space (eg. 4 + chars/4). Whereas :
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38 ; STRCAT_PRINT "+/-:"
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39 ; takes just 10 bytes (4 + chars + 1, even rounded up).
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40 ;
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41 ; Note that the other common sequence :
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42 ; OUTPUTTEXT .113
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43 ; does compile in (6 bytes per call), plus (1 + chars, even rouded up)
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44 ; once it the whole code. Also, it is slower to execute, because it have
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45 ; to roll through the string table.
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46 ;
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47 ; RATIONALS for a formating variant... not yet done...
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48 ; * Embeding formatting commands into the string allows even mode compact
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49 ; sequence.
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50 ; Possible commandes:
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51 ; \xF0 output_8 ; arg in hi, and move lo to hi,
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52 ; \xF1 output_9 ; so we can have two 8bits concertion
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53 ; \xF2 output_99 ; in a single sequence...
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54 ; \xF3 output_99x
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55 ; \xF4 output_16 ; arg in hi:lo
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56 ; \xF5 output_16dp 1
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57 ; \xF6 output_16dp 2
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58 ; \xF7 output_16dp 3
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59 ; ....
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60 ; Usage:
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61 ; movff apnoe_min, hi
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62 ; movff apnoe_sec, lo
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63 ; FORMAT_PRINT "Time: \xF3:\xF3"
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64 ;
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65 ; * Cons: code redeability is poor: reader have to remember exactly what
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66 ; each cryptic hexa code is doing...
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67 ; No-macro-syntax:
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68 ; call format_print_block
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69 ; DB "Time: ", FORMAT_99x, ':', FORMAT_99x, 0
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70 ; is denitively more secure in that respect...
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71
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72 ;=============================================================================
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73 ; Copy a short embebed string at start of the string buffer (letter)
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74 ; Input: (nothing)
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75 ; Output: chars are copied into letter, starting at the beginning.
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76 ; FSR2 point to the first unused char (the NULL termination).
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77 ;
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78 ; Trashed: WREG, TBLPTR, TABLAT, PRODL
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79 ; Note: This are all bank-safe call.
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80 ;
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81 STRCPY macro string
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82 call strcpy_block
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83 DB string, 0
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84 endm
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85
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86 ;=============================================================================
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87 ; A variant of STRCPY that appends chars to the current FSR2 pointer.
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88 ; Input/Output/Trashed : see STRCPY.
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89 STRCAT macro string
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90 call strcat_block
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91 DB string, 0
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92 endm
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93
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94 ;=============================================================================
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95 ; A variant of STRCPY that send the string to the word processor afterwards.
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96 ; Input/Output: see STRCPY.
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97 ; Trashed: See STRCPY + word_processor. In particular, switch RAM to Bank1
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98 ;
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99 STRCPY_PRINT macro string
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100 call strcpy_block_print
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101 DB string, 0
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102 endm
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103
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104 ; Trashed: See STRCPY + word_processor. In particular, switch RAM to Bank1
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105 STRCAT_PRINT macro string
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106 call strcat_block_print
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107 DB string, 0
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108 endm
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109
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110 ;=============================================================================
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111 ; A shortcut for the macros WIN_TOP + WIN_LEFT + WIN_FONT + WIN_INVERT.
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112 ; The idea is to replace a 4x6=24 bytes sequence by a more compact 6bytes one.
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113 ;
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114 ; Trashed: TBLPTR, TABLAT, WREG.
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115 ; Note: This are all bank-safe call.
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116
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117 WIN_SMALL macro x, y
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118 call start_small_block
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119 DB x, y
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120 endm
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121
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122 WIN_SMALL_INVERT macro x, y
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123 call start_small_invert_block
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124 DB x, y
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125 endm
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126
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127 WIN_MEDIUM macro x, y
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128 call start_medium_block
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129 DB x, y
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130 endm
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131
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132 WIN_MEDIUM_INVERT macro x, y
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133 call start_medium_invert_block
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134 DB x, y
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135 endm
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136
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137 WIN_LARGE macro x, y
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138 call start_large_block
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139 DB x, y
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140 endm
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141
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142 WIN_LARGE_INVERT macro x, y
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143 call start_large_invert_block
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144 DB x, y
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145 endm
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