annotate code_part1/OSTC_code_asm_part1/strings.asm @ 483:0635fbb2fcf5

Tweaking gamma values
author heinrichsweikamp
date Thu, 13 Oct 2011 09:41:02 +0200
parents cdba979821ee
children 6e456a6398e0
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1 ;=============================================================================
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2 ;
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3 ; File strings.asm
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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 ; See strings.inc for doc and public calling macros.
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26
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27 VARARGS_BEGIN macro
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28 movff TOSL, TBLPTRL
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29 movff TOSH, TBLPTRH
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30 movff TOSU, TBLPTRU
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31 endm
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32
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33 VARARGS_GET8 macro register
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34 tblrd*+
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35 movff TABLAT, register
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36 endm
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37
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38 VARARGS_GET16 macro register
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39 tblrd*+
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40 movff TABLAT, register+0
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41 tblrd*+
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42 movff TABLAT, register+1
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43 endm
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44
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45 VARARGS_ALIGN macro
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46 btfss TBLPTRL,0
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47 local no_tblptr_align
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48 bra no_tblptr_align
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49 incf TBLPTRL
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50 movlw 0
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51 addwfc TBLPTRH
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52 no_tblptr_align:
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53 endm
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54
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55 VARARGS_END macro
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56 ; Compute string length (modulo 256):
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57 movf TOSL,W
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58 subwf TBLPTRL,W
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59
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60 ; Then 24bit add to return address
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61 addwf TOSL,F
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62 movlw 0 ; Clear WREG, but keep carry
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63 addwfc TOSH,F
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64 addwfc TOSU,F
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65 endm
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66
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67 ;=============================================================================
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68 ; Variants that call word_processor at the end:
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69 strcpy_block_print:
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70 lfsr FSR2, letter
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71 strcat_block_print:
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72 clrf PRODL,A
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73 bra strings_common
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74
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75 ; Variants that do not call word_processor at end:
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76 strcpy_block:
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77 lfsr FSR2, letter
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78 strcat_block:
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79 setf PRODL,A
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80
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81 ; Common part: append the string from PROM return address:
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82 strings_common:
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83 VARARGS_BEGIN
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84
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85 strcpy_loop:
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86 tblrd*+
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87 movf TABLAT,W
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88 movwf POSTINC2
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89 bnz strcpy_loop
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90 movf POSTDEC2,W ; rewind one char in string buffer.
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91
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92 VARARGS_ALIGN
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93 VARARGS_END
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94
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95 btfsc PRODL,0,A ; Should we print afterward ?
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96 return ; NO: then return straight away.
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97 goto word_processor ; ELSE: print it...
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98
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99 ;=============================================================================
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100
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101 start_small_block:
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102 clrf WREG,A
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103 movff WREG, win_font ; Need a bank-safe move here !
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104 movff WREG, win_invert
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105 bra start_common
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106
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107 start_small_invert_block:
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108 clrf WREG,A
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109 movff WREG, win_font ; Need a bank-safe move here !
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110 setf WREG,A
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111 movff WREG, win_invert
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112 bra start_common
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113
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114 start_medium_block:
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115 movlw 1
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116 movff WREG, win_font ; Need a bank-safe move here !
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117 clrf WREG,A
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118 movff WREG, win_invert
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119 bra start_common
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120
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121 start_medium_invert_block:
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122 movlw 1
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123 movff WREG, win_font ; Need a bank-safe move here !
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124 movff WREG, win_invert
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125 bra start_common
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126
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127 start_large_block:
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128 movlw 2
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129 movff WREG, win_font ; Need a bank-safe move here !
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130 clrf WREG,A
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131 movff WREG, win_invert
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132 bra start_common
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133
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134 start_large_invert_block:
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135 movlw 2
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136 movff WREG, win_font ; Need a bank-safe move here !
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137 movlw 1
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138 movff WREG, win_invert
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139 bra start_common
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140
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141 start_common:
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142 VARARGS_BEGIN
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143 VARARGS_GET8 win_leftx2
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144 VARARGS_GET8 win_top
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145 VARARGS_END
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146 return
123
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147
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148 ;=============================================================================
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149
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150 box_std_block: ; Use standard color (CF#35)
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151 call PLED_standard_color
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152 bra box_common
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153 box_color_block: ; Use color from WREG
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154 call PLED_set_color
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155 bra box_common
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156 box_black_block: ; Use black color
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157 clrf WREG
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158 movff WREG,win_color1 ; Bank-safe addressing.
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159 movff WREG,win_color2
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160 box_common:
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161 VARARGS_BEGIN
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162 VARARGS_GET8 win_top
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163 VARARGS_GET8 win_height
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164 VARARGS_GET8 win_leftx2
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165 VARARGS_GET8 win_width
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166 VARARGS_END
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167 goto PLED_box
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168
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169 box_frame_std:
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170 call PLED_standard_color
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171
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172 box_frame_common:
123
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173 VARARGS_BEGIN
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174 VARARGS_GET8 win_top
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175 VARARGS_GET8 win_height
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176 VARARGS_GET8 win_leftx2
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177 VARARGS_GET8 win_width
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178 VARARGS_END
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179 goto PLED_frame
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180
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181 box_frame_color:
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182 call PLED_set_color
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183 bra box_frame_common