Mercurial > public > mk2
annotate code_part1/OSTC_code_asm_part1/displaytext.asm @ 152:e5f1cfec8113
* for better gas again
| author | heinrichsweikamp |
|---|---|
| date | Wed, 12 Jan 2011 14:38:24 +0100 |
| parents | 3e351e25f5d1 |
| children | e56f80318b58 |
| rev | line source |
|---|---|
| 0 | 1 ; OSTC - diving computer code |
| 2 ; Copyright (C) 2008 HeinrichsWeikamp GbR | |
| 3 | |
| 4 ; This program is free software: you can redistribute it and/or modify | |
| 5 ; it under the terms of the GNU General Public License as published by | |
| 6 ; the Free Software Foundation, either version 3 of the License, or | |
| 7 ; (at your option) any later version. | |
| 8 | |
| 9 ; This program is distributed in the hope that it will be useful, | |
| 10 ; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 ; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 12 ; GNU General Public License for more details. | |
| 13 | |
| 14 ; You should have received a copy of the GNU General Public License | |
| 15 ; along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 16 | |
| 17 | |
| 18 ; Displays from text_table_vx.asm | |
| 19 ; written by: Matthias Heinrichs, info@heinrichsweikamp.com | |
| 20 ; written: 10/30/05 | |
| 51 | 21 ; last updated: 100730 |
| 0 | 22 ; known bugs: |
| 23 ; ToDo: | |
| 24 | |
| 25 | |
| 26 ; These macros output to POSTINC only | |
| 27 OUTPUTTEXT macro textnumber ; For Texts 1-254 | |
| 28 movlw textnumber | |
| 29 call displaytext0 | |
| 30 endm | |
| 31 | |
| 32 OUTPUTTEXTH macro textnumber ; For Texts 255-511 | |
| 33 movlw LOW textnumber ; Use only Lower 8 Bit | |
| 34 call displaytext0_h | |
| 35 endm | |
| 36 | |
| 37 displaytext0_h: | |
| 38 bsf displaytext_high ; Highbit set | |
| 39 rcall displaytext0 | |
| 40 return | |
| 41 | |
| 42 displaytext0: | |
| 43 bsf output_to_postinc_only | |
| 44 rcall displaytext1 | |
| 45 bcf output_to_postinc_only | |
| 46 return | |
| 47 | |
| 48 ; These macros output to POSTINC and call the wordprocessor | |
| 49 DISPLAYTEXT macro textnumber | |
| 50 movlw textnumber | |
| 51 call displaytext1 | |
| 52 endm | |
| 53 | |
| 54 DISPLAYTEXTH macro textnumber | |
| 55 movlw LOW textnumber ; Use only Lower 8 Bit | |
| 56 call displaytext1h | |
| 57 endm | |
| 58 | |
| 59 displaytext1h: | |
| 60 bsf displaytext_high ; Highbit set | |
| 61 rcall displaytext1 | |
| 62 return | |
| 63 | |
| 64 displaytext1: | |
| 65 movwf textnumber | |
| 66 movlw b'10000000' | |
| 67 movwf EECON1 | |
| 68 | |
| 69 clrf TBLPTRU | |
|
83
3e351e25f5d1
adding anti-aliased fonts frame and merging some patches from Jeando
heinrichsweikamp
parents:
51
diff
changeset
|
70 movlw HIGH (textpos_pointer-4) |
| 0 | 71 movwf TBLPTRH |
|
83
3e351e25f5d1
adding anti-aliased fonts frame and merging some patches from Jeando
heinrichsweikamp
parents:
51
diff
changeset
|
72 movlw LOW (textpos_pointer-4) ; base address -4 for position table |
| 0 | 73 movwf TBLPTRL |
| 74 | |
| 75 movff textnumber,xA+0 | |
| 76 movlw d'0' | |
| 77 btfsc displaytext_high ; Highbit set? | |
| 78 movlw d'1' ; Yes! | |
| 79 movwf xA+1 ; Set High Bit | |
| 51 | 80 |
| 81 bcf STATUS,C | |
| 82 rlcf xA+0,F | |
| 83 rlcf xA+1,F ; times 2 for adress | |
| 84 | |
| 85 movlw d'2' | |
| 86 addwf xA+0,F | |
| 87 movlw d'0' | |
| 88 addwfc xA+1,F ; + 2 | |
| 89 | |
| 90 movf xA+0,W | |
| 0 | 91 addwf TBLPTRL,F ; set adress, data can be read |
| 51 | 92 movf xA+1,W |
| 0 | 93 addwfc TBLPTRH,F ; High byte, if required |
| 94 | |
| 95 TBLRD*+ | |
| 51 | 96 btfss output_to_postinc_only ; output to postinc only? |
| 97 movff TABLAT,win_leftx2 ; No, write coordinates | |
| 0 | 98 |
| 99 TBLRD*+ | |
| 51 | 100 btfss output_to_postinc_only ; output to postinc only? |
| 101 movff TABLAT,win_top ; No, write coordinates | |
| 102 | |
| 103 movlw d'0' | |
| 104 movff WREG,win_font ; Bank0 Variable... | |
| 0 | 105 |
| 106 clrf textaddress+0 | |
| 107 clrf textaddress+1 | |
| 51 | 108 clrf TBLPTRH ; Set Pointer for textlength table |
| 0 | 109 clrf TBLPTRU |
|
83
3e351e25f5d1
adding anti-aliased fonts frame and merging some patches from Jeando
heinrichsweikamp
parents:
51
diff
changeset
|
110 movlw LOW textlength_pointer |
| 51 | 111 movwf TBLPTRL |
| 0 | 112 bra displaytext1b |
| 113 | |
| 114 displaytext1a: | |
| 115 bcf displaytext_high ; Clear flag | |
| 116 ; Get textadress from textlength table | |
| 117 displaytext1b: | |
| 118 TBLRD*+ | |
| 119 movf TABLAT,W | |
| 120 addwf textaddress+0,F | |
| 121 movlw d'0' | |
| 122 addwfc textaddress+1,F | |
| 123 decfsz textnumber,F | |
| 124 bra displaytext1b | |
| 125 | |
| 126 btfsc displaytext_high ; Highbit set? | |
| 127 bra displaytext1a ; Yes, add 256 loops | |
| 128 | |
| 129 displaytext2: ; copies text to wordprocessor | |
| 130 clrf TBLPTRU | |
|
83
3e351e25f5d1
adding anti-aliased fonts frame and merging some patches from Jeando
heinrichsweikamp
parents:
51
diff
changeset
|
131 movlw LOW text_pointer |
| 0 | 132 addwf textaddress+0,W |
| 133 movwf TBLPTRL | |
|
83
3e351e25f5d1
adding anti-aliased fonts frame and merging some patches from Jeando
heinrichsweikamp
parents:
51
diff
changeset
|
134 movlw HIGH text_pointer ; Base address Texts |
| 0 | 135 addwfc textaddress+1,W |
| 136 movwf TBLPTRH | |
| 137 | |
| 51 | 138 btfss output_to_postinc_only ; output to postinc2 only? |
| 0 | 139 lfsr FSR2,letter ; no! |
| 140 | |
| 141 displaytext2a: | |
| 142 TBLRD*+ | |
| 143 movlw '}' ; Text finished? | |
| 144 cpfseq TABLAT | |
| 145 bra displaytext3 | |
| 146 bra display_text_exit | |
| 147 | |
| 148 displaytext3: | |
| 51 | 149 movff TABLAT,POSTINC2 |
| 150 | |
| 0 | 151 TBLRD*+ |
| 152 movlw '}' ; Text finished? | |
| 153 cpfseq TABLAT | |
| 154 bra displaytext4 | |
| 155 bra display_text_exit | |
| 156 displaytext4: | |
| 51 | 157 movff TABLAT,POSTINC2 |
| 0 | 158 bra displaytext2a |
| 159 | |
| 160 display_text_exit: | |
| 161 btfss output_to_postinc_only ; output to postinc only? | |
| 162 call word_processor | |
| 163 return |