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annotate code_part1/OSTC_code_asm_part1/strings.asm @ 346:193d1adc97b7 ScreenDump
Added screen dumps.
| author | JeanDo |
|---|---|
| date | Sat, 21 May 2011 15:13:06 +0200 |
| parents | cdba979821ee |
| children | 6e456a6398e0 |
| rev | line source |
|---|---|
| 97 | 1 ;============================================================================= |
| 2 ; | |
| 3 ; File strings.asm | |
| 4 ; | |
| 5 ; Implementation code various string functions. | |
| 6 ; | |
| 7 ; This program is free software: you can redistribute it and/or modify | |
| 8 ; it under the terms of the GNU General Public License as published by | |
| 9 ; the Free Software Foundation, either version 3 of the License, or | |
| 10 ; (at your option) any later version. | |
| 11 ; | |
| 12 ; This program is distributed in the hope that it will be useful, | |
| 13 ; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 ; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 ; GNU General Public License for more details. | |
| 16 ; | |
| 17 ; You should have received a copy of the GNU General Public License | |
| 18 ; along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 19 ; | |
| 20 ; Copyright (c) 2010, JD Gascuel. | |
| 21 ;============================================================================= | |
| 22 ; HISTORY | |
| 23 ; 2010-12-02 : [jDG] Creation... | |
| 24 ; | |
| 25 ; See strings.inc for doc and public calling macros. | |
| 26 | |
| 27 VARARGS_BEGIN macro | |
| 28 movff TOSL, TBLPTRL | |
| 29 movff TOSH, TBLPTRH | |
| 30 movff TOSU, TBLPTRU | |
| 31 endm | |
| 32 | |
| 33 VARARGS_GET8 macro register | |
| 34 tblrd*+ | |
| 35 movff TABLAT, register | |
| 36 endm | |
| 37 | |
| 38 VARARGS_GET16 macro register | |
| 39 tblrd*+ | |
| 40 movff TABLAT, register+0 | |
| 41 tblrd*+ | |
| 42 movff TABLAT, register+1 | |
| 43 endm | |
| 44 | |
| 45 VARARGS_ALIGN macro | |
| 46 btfss TBLPTRL,0 | |
| 47 local no_tblptr_align | |
| 48 bra no_tblptr_align | |
| 49 incf TBLPTRL | |
| 50 movlw 0 | |
| 51 addwfc TBLPTRH | |
| 52 no_tblptr_align: | |
| 53 endm | |
| 54 | |
| 55 VARARGS_END macro | |
| 56 ; Compute string length (modulo 256): | |
| 57 movf TOSL,W | |
| 58 subwf TBLPTRL,W | |
| 59 | |
| 60 ; Then 24bit add to return address | |
| 61 addwf TOSL,F | |
| 62 movlw 0 ; Clear WREG, but keep carry | |
| 63 addwfc TOSH,F | |
| 64 addwfc TOSU,F | |
| 65 endm | |
| 66 | |
| 67 ;============================================================================= | |
| 68 ; Variants that call word_processor at the end: | |
| 69 strcpy_block_print: | |
| 70 lfsr FSR2, letter | |
| 71 strcat_block_print: | |
| 72 clrf PRODL,A | |
| 73 bra strings_common | |
| 74 | |
| 75 ; Variants that do not call word_processor at end: | |
| 76 strcpy_block: | |
| 77 lfsr FSR2, letter | |
| 78 strcat_block: | |
| 79 setf PRODL,A | |
| 80 | |
| 81 ; Common part: append the string from PROM return address: | |
| 82 strings_common: | |
| 83 VARARGS_BEGIN | |
| 84 | |
| 85 strcpy_loop: | |
| 86 tblrd*+ | |
| 87 movf TABLAT,W | |
| 88 movwf POSTINC2 | |
| 89 bnz strcpy_loop | |
| 90 movf POSTDEC2,W ; rewind one char in string buffer. | |
| 91 | |
| 92 VARARGS_ALIGN | |
| 93 VARARGS_END | |
| 94 | |
| 95 btfsc PRODL,0,A ; Should we print afterward ? | |
| 96 return ; NO: then return straight away. | |
| 97 goto word_processor ; ELSE: print it... | |
| 98 | |
| 99 ;============================================================================= | |
| 100 | |
| 101 start_small_block: | |
| 102 clrf WREG,A | |
| 103 movff WREG, win_font ; Need a bank-safe move here ! | |
| 104 movff WREG, win_invert | |
| 105 bra start_common | |
| 106 | |
| 107 start_small_invert_block: | |
| 108 clrf WREG,A | |
| 109 movff WREG, win_font ; Need a bank-safe move here ! | |
| 110 setf WREG,A | |
| 111 movff WREG, win_invert | |
| 112 bra start_common | |
| 113 | |
| 114 start_medium_block: | |
| 115 movlw 1 | |
| 116 movff WREG, win_font ; Need a bank-safe move here ! | |
| 117 clrf WREG,A | |
| 118 movff WREG, win_invert | |
| 119 bra start_common | |
| 120 | |
| 121 start_medium_invert_block: | |
| 122 movlw 1 | |
| 123 movff WREG, win_font ; Need a bank-safe move here ! | |
| 124 movff WREG, win_invert | |
| 125 bra start_common | |
| 126 | |
| 127 start_large_block: | |
| 128 movlw 2 | |
| 129 movff WREG, win_font ; Need a bank-safe move here ! | |
| 130 clrf WREG,A | |
| 131 movff WREG, win_invert | |
| 132 bra start_common | |
| 133 | |
| 134 start_large_invert_block: | |
| 135 movlw 2 | |
| 136 movff WREG, win_font ; Need a bank-safe move here ! | |
| 137 movlw 1 | |
| 138 movff WREG, win_invert | |
| 139 bra start_common | |
| 140 | |
| 141 start_common: | |
| 142 VARARGS_BEGIN | |
| 143 VARARGS_GET8 win_leftx2 | |
| 144 VARARGS_GET8 win_top | |
| 145 VARARGS_END | |
| 146 return | |
| 123 | 147 |
| 148 ;============================================================================= | |
| 149 | |
| 150 box_std_block: ; Use standard color (CF#35) | |
| 151 call PLED_standard_color | |
| 152 bra box_common | |
| 153 box_color_block: ; Use color from WREG | |
| 154 call PLED_set_color | |
| 155 bra box_common | |
| 156 box_black_block: ; Use black color | |
| 157 clrf WREG | |
| 158 movff WREG,win_color1 ; Bank-safe addressing. | |
| 159 movff WREG,win_color2 | |
| 160 box_common: | |
| 161 VARARGS_BEGIN | |
| 162 VARARGS_GET8 win_top | |
| 163 VARARGS_GET8 win_height | |
| 164 VARARGS_GET8 win_leftx2 | |
| 165 VARARGS_GET8 win_width | |
| 166 VARARGS_END | |
| 167 goto PLED_box | |
| 168 | |
| 169 box_frame_std: | |
| 170 call PLED_standard_color | |
|
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171 |
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172 box_frame_common: |
| 123 | 173 VARARGS_BEGIN |
| 174 VARARGS_GET8 win_top | |
| 175 VARARGS_GET8 win_height | |
| 176 VARARGS_GET8 win_leftx2 | |
| 177 VARARGS_GET8 win_width | |
| 178 VARARGS_END | |
| 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 |