annotate src/strings.asm @ 260:e1cd6848863d

increase immunity against false Qi data
author heinrichsweikamp
date Tue, 24 Mar 2015 19:48:17 +0100
parents 3fec179a6220
children 653a3ab08062
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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 ; Copyright (c) 2011, JD Gascuel, HeinrichsWeikamp, all right reserved.
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8 ;=============================================================================
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9 ; HISTORY
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10 ; 2010-12-02 : [jDG] Creation...
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11 ;
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12 ; See strings.inc for doc and public calling macros.
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13
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14 #include "ostc3.inc"
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15 #include "varargs.inc"
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16
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17 extern aa_wordprocessor
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18
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19 basic CODE
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20 ;=============================================================================
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21 ; Variants that call word_processor at the end:
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22 global strcpy_block_print
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23 strcpy_block_print:
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24 lfsr FSR2, buffer
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25 global strcat_block_print
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26 strcat_block_print:
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27 clrf PRODL,A
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28 bra strings_common
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29
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30 ; Variants that do not call word_processor at end:
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31 global strcpy_block
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32 strcpy_block:
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33 lfsr FSR2, buffer
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34 global strcat_block
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35 strcat_block:
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36 setf PRODL,A
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37
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38 ; Common part: append the string from PROM return address:
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39 strings_common:
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40 VARARGS_BEGIN
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41
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42 rcall strcat_prom
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43
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44 VARARGS_ALIGN
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45 VARARGS_END
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46
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47 btfsc PRODL,0,A ; Should we print afterward ?
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48 return ; NO: then return straight away.
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49 goto aa_wordprocessor ; ELSE: print it...
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50
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51 ;=============================================================================
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52 ; Copy multi-lingual text from FSR1 12bit pointers, to buffer.
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53 ;
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54 ; Input: FSR1 = 12bit pointer to multi-lingual text.
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55 ; Output: FSR2 points to closing null byte in buffer.
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56 ; Trashed: TBLPTR, TABLAT.
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57 global strcpy_text
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58 strcpy_text:
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59 rcall text_get_tblptr
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60 bra strcpy_prom
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61
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62 ; Copy then print multi-lingual text from FSR1 12bit pointers, to buffer.
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63 ;
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64 ; Input: FSR1 = 12bit pointer to multi-lingual text.
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65 ; Output: FSR2 points to closing null byte in buffer.
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66 ; Trashed: TBLPTR, TABLAT.
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67 global strcpy_text_print
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68 strcpy_text_print:
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69 rcall text_get_tblptr
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70 bra strcpy_prom_print
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71
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72 ; Append multi-lingual text from FSR1 12bit pointers, to buffer at FRS2.
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73 ;
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74 ; Input: FSR1 = 12bit pointer to multi-lingual text.
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75 ; FSR2 = Current position in buffer.
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76 ; Output: FSR2 points to closing null byte in buffer.
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77 ; Trashed: TBLPTR, TABLAT.
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78 global strcat_text
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79 strcat_text:
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80 rcall text_get_tblptr
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81 bra strcat_prom
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82
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83 ; Append then print multi-lingual text from FSR1 12bit pointers, to buffer at FRS2.
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84 ;
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85 ; Input: FSR1 = 12bit pointer to multi-lingual text.
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86 ; FSR2 = Current position in buffer.
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87 ; Output: FSR2 points to closing null byte in buffer.
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88 ; Trashed: TBLPTR, TABLAT.
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89 global strcat_text_print
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90 strcat_text_print:
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91 rcall text_get_tblptr
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92 bra strcat_prom_print
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93
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94 ;=============================================================================
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95 ; Get pointer to multilingual texl in TBLPTR
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96 ;
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97 ; Input: FSR1 = 12bits of text handle.
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98 ; opt_language = current language.
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99 ; Output: TBLPTR = 24bits of PROM address.
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100 ;
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101 global text_get_tblptr
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102 text_get_tblptr:
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103 extern text_english_base
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104 movlw UPPER(text_english_base); Complete 12bits to 24bits address.
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105 movwf TBLPTRU
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106 movlw HIGH(text_english_base)
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107 andlw 0xF0
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108 iorwf FSR1H,W
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109 movwf TBLPTRH
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110 movff FSR1L,TBLPTRL
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111
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112 movff opt_language,WREG ; Get lang
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113 bz text_get_english ; 0 == English
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114 dcfsnz WREG ; 1 == German
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115 bra text_get_german
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116 dcfsnz WREG ; 2 == French
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117 bra text_get_french
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118 dcfsnz WREG ; 3 == Italian
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119 bra text_get_italian
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120 ; Other ??? Keep english...
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121
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122 ; Read 2-byte pointer to string
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123 text_get_english:
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124 tblrd*+
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125 movff TABLAT,WREG
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126 tblrd*+
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127 movff WREG,TBLPTRL
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128 movff TABLAT,TBLPTRH
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129 return
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130
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131 ; Add correction for German table:
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132 text_get_german:
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133 extern text_german_base
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134 movlw LOW(text_german_base)
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135 addwf TBLPTRL
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136 movlw HIGH(text_german_base)
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137 addwfc TBLPTRH
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138 movlw UPPER(text_german_base)
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139 addwfc TBLPTRU
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140
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141 movlw LOW(text_english_base)
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142 subwf TBLPTRL
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143 movlw HIGH(text_english_base)
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144 subwfb TBLPTRH
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145 movlw UPPER(text_english_base)
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146 subwfb TBLPTRU
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147 bra text_get_english
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148
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149 ; Add correction for French table:
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150 text_get_french:
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151 extern text_french_base
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152 movlw LOW(text_french_base)
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153 addwf TBLPTRL
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154 movlw HIGH(text_french_base)
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155 addwfc TBLPTRH
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156 movlw UPPER(text_french_base)
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157 addwfc TBLPTRU
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158
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159 movlw LOW(text_english_base)
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160 subwf TBLPTRL
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161 movlw HIGH(text_english_base)
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162 subwfb TBLPTRH
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163 movlw UPPER(text_english_base)
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164 subwfb TBLPTRU
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165 bra text_get_english
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166
251
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167 ; Add correction for italian table:
0
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168 text_get_italian:
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169 extern text_italian_base
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170 movlw LOW(text_italian_base)
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171 addwf TBLPTRL
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172 movlw HIGH(text_italian_base)
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173 addwfc TBLPTRH
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174 movlw UPPER(text_italian_base)
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175 addwfc TBLPTRU
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176
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177 movlw LOW(text_english_base)
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178 subwf TBLPTRL
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179 movlw HIGH(text_english_base)
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180 subwfb TBLPTRH
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181 movlw UPPER(text_english_base)
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182 subwfb TBLPTRU
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183 bra text_get_english
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184
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185 ;=============================================================================
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186 ; Copy a null-terminated string from TBLPTR to buffer.
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187 ;
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188 ; Input: TBLPTR : string pointer into PROM.
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189 ; Output: string in buffer, FSR2 pointer on the closing null byte.
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190 ;
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191 global strcpy_prom
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192 strcpy_prom:
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193 lfsr FSR2,buffer
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194
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195 ; Append a null-terminated string from TBLPTR to buffer.
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196 ;
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197 ; Input: TBLPTR : string pointer into PROM.
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198 ; FRS2 : current character position.
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199 ; Output: string in buffer, FSR2 pointer on the closing null byte.
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200 ;
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201 global strcat_prom
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202 strcat_prom:
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203 tblrd*+
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204 movf TABLAT,W
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205 movwf POSTINC2
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206 bnz strcat_prom
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207 movf POSTDEC2,W ; rewind one char in string buffer.
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208 return
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209
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210 ;=============================================================================
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211 ; Variant that calls word processor right-away...
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212 global strcpy_prom_print
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213 global strcat_prom_print
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214
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215 strcpy_prom_print:
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216 lfsr FSR2,buffer
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217 strcat_prom_print:
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218 rcall strcat_prom
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219 goto aa_wordprocessor
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220
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221 ;=============================================================================
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222
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223 global start_tiny_block
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224 start_tiny_block:
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225 clrf WREG
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226 movff WREG, win_font ; Need a bank-safe move here !
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227 bra start_common
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228
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229 global start_small_block
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230 start_small_block:
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231 movlw 1
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232 movff WREG, win_font ; Need a bank-safe move here !
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233 bra start_common
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234
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235 global start_std_block
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236 start_std_block:
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237 movlw 2
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238 movff WREG, win_font ; Need a bank-safe move here !
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239 bra start_common
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240
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241 global start_medium_block
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242 start_medium_block:
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243 movlw 3
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244 movff WREG, win_font ; Need a bank-safe move here !
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245 bra start_common
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246
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247 global start_large_block
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248 start_large_block:
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249 movlw 4
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250 movff WREG, win_font ; Need a bank-safe move here !
189
e79bc535ef9e ignore un-calibrated sensors even if they become valid
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251 ; bra start_common
0
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252 start_common:
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253 VARARGS_BEGIN
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254 VARARGS_GET8 win_leftx2
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255 VARARGS_GET8 win_top
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256 VARARGS_END
124
40ff64d60054 cleanup
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257 lfsr FSR2,buffer ; point to buffer here
0
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258 return
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259
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260 END