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annotate code_part1/OSTC_code_asm_part1/valconv.asm @ 818:3d9f56e0d18c
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| author | heinrichsweikamp |
|---|---|
| date | Sat, 06 Jun 2015 19:17:04 +0200 |
| parents | 2a0e5d884fc3 |
| children |
| rev | line source |
|---|---|
| 815 | 1 ; OSTC Mk.2, 2N and 2C - diving computer code |
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2 ; Copyright (C) 2015 HeinrichsWeikamp GbR |
| 0 | 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 ; converts hex values to dez values | |
| 19 ; written by: Matthias Heinrichs, info@heinrichsweikamp.com | |
| 20 ; written: 13/10/07 | |
| 103 | 21 ; 10/12/2010 jDG: optimize macro size. |
| 22 ; last updated: 10/12/2010 | |
| 0 | 23 ; known bugs: |
| 24 ; ToDo: clean up!!! | |
| 25 | |
| 26 | |
| 27 output_16_3 macro ; displays only last three figures from a 16Bit value (0-999) | |
| 103 | 28 call output16_3_call |
| 0 | 29 endm |
| 30 | |
| 31 output_16dp macro temp4 ; 16Bit with decimal point | |
| 32 movlw temp4 ; Temp4 stores position for decimal point | |
| 33 call output16 | |
| 34 endm | |
| 35 | |
| 36 output_16 macro ; 16Bit Normal | |
| 103 | 37 call output16_call |
| 0 | 38 endm |
| 39 | |
| 40 output_8 macro ; 8 Bit Normal | |
| 103 | 41 call output8_call |
| 42 endm | |
| 43 | |
| 44 output_99 macro ; displays only last two figures from a 8Bit value (0-99) | |
| 45 call output99_call | |
| 46 endm | |
| 47 | |
| 48 output_99x macro ; displays only last two figures from a 8Bit value with leading zero (00-99) | |
| 49 call output99x_call | |
| 50 endm | |
| 51 | |
| 52 output99_call: | |
| 0 | 53 clrf ignore_digits |
| 54 incf ignore_digits,F | |
| 55 clrf temp4 | |
| 56 | |
| 57 output99: | |
| 58 movlw d'99' | |
| 59 cpfslt lo | |
| 60 movwf lo ; Limit to 99 | |
| 64 | 61 movff lo,lo_temp |
| 0 | 62 clrf hi_temp |
| 63 bcf pre_zero_flag ; do not display leading zeros | |
| 64 | |
| 65 LCD_val99_2: | |
| 66 movlw b'00001010' ; 10 | |
| 67 movwf temp2 | |
| 68 clrf temp3 | |
| 69 rcall DEC2ASCII | |
| 70 | |
| 71 movlw b'00000001' ; 1 | |
| 72 movwf temp2 | |
| 73 clrf temp3 | |
| 74 bsf pre_zero_flag ; last figure, display zero (0) | |
| 75 rcall DEC2ASCII | |
| 76 RETURN | |
| 77 | |
| 103 | 78 output99x_call: |
| 79 clrf ignore_digits | |
| 80 incf ignore_digits,F | |
| 81 clrf temp4 | |
| 82 | |
| 64 | 83 movlw d'99' |
| 84 cpfslt lo | |
| 85 movwf lo ; Limit to 99 | |
| 0 | 86 movff lo, lo_temp |
| 87 clrf hi_temp | |
| 88 bsf pre_zero_flag ; display leading zeros | |
| 89 bra LCD_val99_2 | |
| 90 | |
| 103 | 91 output8_call: |
| 92 clrf ignore_digits | |
| 93 incf ignore_digits,F | |
| 94 clrf temp4 | |
| 95 | |
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807
c50296c3059e
BUGFIX: Divetime had unwanted "." behind the minutes
heinrichsweikamp
parents:
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changeset
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96 output8: |
| 0 | 97 movff lo, lo_temp |
| 98 clrf hi_temp | |
| 99 bcf pre_zero_flag ; do not display leading zeros | |
| 100 | |
| 101 movlw b'01100100' ; 100 | |
| 102 movwf temp2 | |
| 103 clrf temp3 | |
| 104 rcall DEC2ASCII | |
| 105 bra LCD_val99_2 | |
| 106 | |
| 103 | 107 output16_3_call: |
| 108 clrf ignore_digits | |
| 109 incf ignore_digits,F | |
| 106 | 110 bsf show_last3 |
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111 ; Limit to 3 |
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112 movlw .4 |
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113 cpfslt hi |
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114 bra output16_3_call_2 |
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115 movlw .3 |
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116 cpfseq hi ; =3? |
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117 bra output16_3_call_3 ; No, done. |
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118 movlw .231 ; Limit to 231(+768=999...) |
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119 cpfslt lo |
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120 movwf lo |
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121 bra output16_3_call_3 ; done. |
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122 output16_3_call_2: ; Set to .999 |
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123 movlw LOW .999 |
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124 movwf lo |
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125 movlw HIGH .999 |
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126 movwf hi |
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127 output16_3_call_3: |
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128 clrf WREG |
| 103 | 129 bra output16 |
| 130 | |
| 131 output16_call: | |
| 132 clrf ignore_digits | |
| 133 incf ignore_digits,F | |
| 134 clrf WREG | |
| 135 | |
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BUGFIX: Divetime had unwanted "." behind the minutes
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parents:
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diff
changeset
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136 output16: |
| 103 | 137 movwf temp4 ; Passed from output16dp macro, cleared by others. |
| 138 | |
| 0 | 139 bcf all_zeros_flag ; do not display any zero from here unless there was at least one figure /zero |
| 140 | |
| 141 bsf leading_zeros | |
| 142 incf temp4,1 | |
| 143 decfsz temp4,F | |
| 144 bcf leading_zeros | |
| 145 | |
| 146 bsf DP_done2 | |
| 147 incf temp4,1 | |
| 148 decfsz temp4,F | |
| 149 bcf DP_done2 ; decimal point not yet set | |
| 150 | |
| 151 movff lo, lo_temp | |
| 152 movff hi, hi_temp | |
| 153 bcf pre_zero_flag ; do not display leading zeros | |
| 154 | |
| 155 movlw b'00010000' ; 10000s | |
| 156 movwf temp2 | |
| 157 movlw b'00100111' | |
| 158 movwf temp3 | |
| 159 btfss show_last3 ; display only last three figures? | |
| 160 rcall DEC2ASCII | |
| 161 | |
| 162 movlw b'11101000' ; 1000s | |
| 163 movwf temp2 | |
| 164 movlw b'00000011' | |
| 165 movwf temp3 | |
| 166 btfsc DP_done2 ; Is there a decimal point at all? | |
| 167 bra output16_2 ; no, use normal display mode | |
| 168 | |
| 169 btfsc all_zeros_flag ; display any zero from here | |
| 170 bra output16_1 ; there was a figure /zero already | |
| 171 | |
| 172 bsf pre_zero_flag ; display figure if zero? | |
| 173 decfsz temp4,W | |
| 174 bcf pre_zero_flag ; No | |
| 175 | |
| 176 output16_1: | |
| 177 btfsc DP_done ; Decimal point set already? | |
| 178 bsf pre_zero_flag ; Yes, so display the rest | |
| 179 output16_2: | |
| 180 btfss show_last3 ; display only last three figures? | |
| 181 rcall DEC2ASCII | |
| 182 bcf show_last3 ; No, so display the rest | |
| 183 | |
| 184 movlw b'01100100' ; 100s | |
| 185 movwf temp2 | |
| 186 clrf temp3 | |
| 187 | |
| 188 btfsc ignore_digit3 ; Ignore 3rd-5th digit? | |
| 189 bra output16_5 ; Yes, skip the rest | |
| 190 | |
| 191 btfsc DP_done2 ; Is there a decimal point at all? | |
| 192 bra output16_3 ; no, use normal display mode | |
| 193 | |
| 194 btfsc all_zeros_flag ; display any zero from here | |
| 195 bra output16_2_1 ; there was a figure /zero already | |
| 196 | |
| 197 bsf pre_zero_flag ; display figure if zero? | |
| 198 decfsz temp4,W | |
| 199 bcf pre_zero_flag ; No | |
| 200 | |
| 201 output16_2_1: | |
| 202 btfsc DP_done ; Decimal point set already? | |
| 203 bsf pre_zero_flag ; Yes, so display the rest | |
| 204 btfsc DP_done2 ; Is there a decimal point at all? | |
| 205 bsf pre_zero_flag ; No, so display the rest | |
| 206 output16_3: | |
| 207 rcall DEC2ASCII | |
| 208 | |
| 209 movlw b'00001010' ; 10s | |
| 210 movwf temp2 | |
| 211 clrf temp3 | |
| 212 btfsc DP_done2 | |
| 213 bra output16_4 | |
| 214 | |
| 215 btfsc all_zeros_flag ; display any zero from here | |
| 216 bra output16_3_1 ; there was a figure /zero already | |
| 217 | |
| 218 bsf pre_zero_flag | |
| 219 decfsz temp4,W | |
| 220 bcf pre_zero_flag | |
| 221 | |
| 222 output16_3_1: | |
| 223 btfsc DP_done | |
| 224 bsf pre_zero_flag | |
| 225 btfsc DP_done2 | |
| 226 bsf pre_zero_flag | |
| 227 output16_4: | |
| 228 btfsc ignore_digit4 ; Ignore 4-5th digit? | |
| 229 bra output16_5 ; Yes, skip the rest | |
| 230 rcall DEC2ASCII | |
| 231 | |
| 232 movlw b'00000001' ; 1s | |
| 233 movwf temp2 | |
| 234 clrf temp3 | |
| 235 bsf pre_zero_flag | |
| 236 btfss ignore_digit5 ; Ignore 5th digit? | |
| 237 rcall DEC2ASCII ; No! | |
| 238 bcf ignore_digit5 ; yes, and clear flag | |
| 239 output16_5: | |
| 240 bcf ignore_digit3 ; Clear flag | |
| 241 clrf ignore_digits | |
| 242 incf ignore_digits,F | |
| 243 bcf DP_done | |
| 244 RETURN | |
| 245 | |
| 246 DEC2ASCII clrf temp1 ; converts into ASCII code | |
| 247 DEC2ASCII_2 movf temp3,W | |
| 248 subwf hi_temp,0 | |
| 249 btfss STATUS,C | |
| 250 bra DEC2ASCII_4 | |
| 251 bnz DEC2ASCII_3 | |
| 252 | |
| 253 movf temp2,W | |
| 254 subwf lo_temp,0 | |
| 255 btfss STATUS,C | |
| 256 bra DEC2ASCII_4 | |
| 257 | |
| 258 DEC2ASCII_3 movf temp3,W | |
| 259 subwf hi_temp,1 | |
| 260 movf temp2,W | |
| 261 subwf lo_temp,1 | |
| 262 btfss STATUS,C | |
| 263 decf hi_temp,1 | |
| 264 incf temp1,1 | |
| 265 bsf pre_zero_flag | |
| 266 bra DEC2ASCII_2 | |
| 267 | |
| 268 DEC2ASCII_4 | |
| 269 decfsz ignore_digits,F | |
| 270 return | |
| 271 incf ignore_digits,F | |
| 272 movlw '0' ; Offset for Ascii-value | |
| 273 addwf temp1,0 | |
| 274 btfsc pre_zero_flag ; is this a leading zero? | |
| 275 bra DEC2ASCII_4_1 ; no | |
| 276 btfsc leftbind | |
| 277 bra DEC2ASCII_6 | |
| 278 movlw ' ' ; instead of leading zeros a space! | |
| 279 bra DEC2ASCII_5 | |
| 280 | |
| 281 DEC2ASCII_4_1: | |
| 282 bsf all_zeros_flag ; display any zero from here | |
| 283 DEC2ASCII_5 | |
| 284 movwf POSTINC2 | |
| 285 DEC2ASCII_6 | |
| 286 decfsz temp4,F ; Set decimal point? | |
| 287 RETURN ; No | |
| 288 movlw "." ; Yes | |
| 289 movwf POSTINC2 | |
| 290 bsf DP_done | |
| 291 RETURN |