head 1.2; access; symbols pre_mkfiles_rev1_merge:1.1 mkfiles_rev1:1.1.0.2; locks; strict; comment @# @; 1.2 date 2008.08.20.06.01.05; author davidgb; state dead; branches; next 1.1; commitid 103148abb2444567; 1.1 date 2008.03.14.15.52.53; author dilbert57; state Exp; branches 1.1.2.1; next ; commitid 5ae747da9df84567; 1.1.2.1 date 2008.04.12.16.42.16; author davidgb; state dead; branches; next ; commitid 6b864800e6664567; desc @@ 1.2 log @merged mkfiles_rev1 branch to the mainline @ text @Assembler release DWC_2.0 version 2.11 May 6, 2004 (c) Motorola (free ware) 0001 * 0002 ** FLEX 9 DISK DRIVERS 0003 * 0004 * FOR SYS09BUG ON THE DIGILENT SPARTAN 3 STARTER BOARD 0005 * WITH I/O MAPPED AT $XE000 0006 * AND ROM MAPPED AT $XF000 0007 * THE DIGILENT SPARTAN 3 STARTER BOARD HAS 1MBYTE OF SRAM 0008 * THE FIRST 64K IS USED BY FLEX, 0009 * THE SECOND 128K IS USED AS A ROM DISK 0010 * THE REMAINING RAM IS USED FOR A RAM DISK 0011 * 0012 * 0013 0001 CFLAG EQU $01 CARRY FLAG 0014 0002 VFLAG EQU $02 OVERFLOW FLAG 0015 0004 ZFLAG EQU $04 ZERO FLAG 0016 0008 NFLAG EQU $08 NEGATIVE FLAG 0017 0010 IFLAG EQU $10 IRQ MASK CC 0018 0020 HFLAG EQU $20 HALF CARRY 0019 0040 FFLAG EQU $40 FIRQ MASK CC 0020 0080 EFLAG EQU $80 ENTIRE FLAG 0021 * 0022 0000 MAPPAG EQU $00 PAGE $0000 DAT ADDRESS 0023 * 0024 * Serial Port 0025 * 0026 E000 ACIAS EQU $E000 0027 E000 ACIAC1 EQU ACIAS 0028 E001 ACIAD1 EQU ACIAS+1 0029 04E2 DELCON EQU 1250 Delay (Processor clock in MHz * 50) 0030 * 0031 * XMODEM Control characters 0032 * 0033 0001 SOH EQU $01 0034 0004 EOT EQU $04 0035 0006 ACK EQU $06 0036 0015 NAK EQU $15 0037 0018 CAN EQU $18 0038 * 0039 * Some dummy Constants 0040 * 0041 0030 RMAXTRK EQU 48 0042 000E RMAXSEC EQU 14 0043 0292 RTOTSEC EQU RMAXTRK*RMAXSEC-RMAXSEC 0044 * 0045 * Start 0046 * 0047 0100 ORG $0100 0048 0100 17 02 C3 START LBSR UXSUB 0049 0103 6E 9F F8 00 JMP [$F800] Jump to monitor on Completion. 0050 * 0051 * 0052 * RAM SPACE 0053 * 0054 0107 00 DRVNUM FCB 0 0055 0108 00 TRACK FCB 0 0056 0109 00 SECTOR FCB 0 0057 010A 00 CHKSUM FCB 0 0058 010B 00 BLKNUM FCB 0 Xmodem block number 0059 010C 00 BYTCNT FCB 0 Xmodem byte count 0060 010D 00 00 XSTATE FDB 0 Xmodem State Vector 0061 010F 00 00 00 DELCNT FCB $00,$00,$00 Xmodem Poll timer 0062 0112 00 MAXTRK FCB 0 0063 0113 00 MAXSEC FCB 0 0064 0200 ORG $0200 0065 * 0066 * SECTOR BUFFER 0067 * 0068 0200 BUFFER RMB 256 0069 * 0070 * ACIA INPUT TEST 0071 * 0072 0300 B6 E0 00 INTEST LDA ACIAC1 0073 0303 85 01 BITA #$01 0074 0305 39 RTS 0075 * 0076 * RESET ACIA 0077 * 0078 0306 86 03 ACIRST LDA #$03 master reset 0079 0308 B7 E0 00 STA ACIAC1 0080 030B 86 11 LDA #$11 0081 030D B7 E0 00 STA ACIAC1 0082 0310 39 RTS 0083 * 0084 * ACIA INPUT 0085 * 0086 0311 86 10 INTER LDA #16 0087 0313 B7 01 0F STA DELCNT+0 0088 0316 7F 01 10 CLR DELCNT+1 0089 0319 7F 01 11 CLR DELCNT+2 0090 031C B6 E0 00 INTER0 LDA ACIAC1 0091 031F 85 01 BITA #$01 0092 0321 26 08 BNE INTER1 0093 0323 85 78 BITA #$78 0094 0325 27 0A BEQ INTER2 0095 0327 8D DD BSR ACIRST 0096 0329 20 E6 BRA INTER 0097 * 0098 032B B6 E0 01 INTER1 LDA ACIAD1 0099 032E 1C FD ANDCC #$FF-VFLAG 0100 0330 39 RTS 0101 * 0102 0331 7A 01 11 INTER2 DEC DELCNT+2 0103 0334 26 E6 BNE INTER0 0104 0336 7A 01 10 DEC DELCNT+1 0105 0339 26 E1 BNE INTER0 0106 033B 7A 01 0F DEC DELCNT+0 0107 033E 26 DC BNE INTER0 0108 0340 4F CLRA 0109 0341 1A 02 ORCC #VFLAG 0110 0343 39 RTS 0111 * 0112 * ACIA OUTPUT 0113 * 0114 0344 34 02 OUTTER PSHS A 0115 * 0116 0346 B6 E0 00 OUTTE1 LDA ACIAC1 0117 0349 85 02 BITA #$02 0118 034B 26 08 BNE OUTTE2 0119 034D 85 78 BITA #$78 0120 034F 27 F5 BEQ OUTTE1 0121 0351 8D B3 BSR ACIRST 0122 0353 20 F1 BRA OUTTE1 0123 * 0124 0355 35 02 OUTTE2 PULS A 0125 0357 B7 E0 01 STA ACIAD1 0126 035A 39 RTS 0127 * 0128 * Print Data 0129 * 0130 035B 8D E7 PDATA0 BSR OUTTER 0131 035D A6 80 PDATA1 LDA ,X+ 0132 035F 81 04 CMPA #$04 0133 0361 26 F8 BNE PDATA0 0134 0363 39 RTS 0135 * 0136 ** 'UX' Xmodem ROM Disk upload 0137 * 0138 0364 0D 0A UXMES0 FCB $0D,$0A 0139 0366 58 6D 6F 64 65 6D FCC 'Xmodem ROM Disk Upload' 20 52 4F 4D 20 44 69 73 6B 20 55 70 6C 6F 61 64 0140 037C 04 FCB 4 0141 037D 0D 0A UXMES1 FCB $0D,$0A 0142 037F 55 70 6C 6F 61 64 FCC 'Upload Complete' 20 43 6F 6D 70 6C 65 74 65 0143 038E 04 FCB 4 0144 038F 0D 0A UXMES2 FCB $0D,$0A 0145 0391 55 70 6C 6F 61 64 FCC 'Upload Error' 20 45 72 72 6F 72 0146 039D 04 FCB 4 0147 039E 0D 0A UXMSG3 FCB $0D,$0A 0148 03A0 44 72 69 76 65 20 FCC 'Drive Number :' 4E 75 6D 62 65 72 20 3A 0149 03AE 04 FCB 4 0150 03AF 0D 0A UXMSG4 FCB $0D,$0A 0151 03B1 41 72 65 20 59 6F FCC 'Are You Sure ? (Y/N)' 75 20 53 75 72 65 20 3F 20 28 59 2F 4E 29 0152 03C5 04 FCB 4 0153 * 0154 * Print Banner 0155 * 0156 03C6 8E 03 64 UXSUB LDX #UXMES0 0157 03C9 17 FF 91 LBSR PDATA1 0158 * 0159 * Prompt for Disk drive number (0 to 3) 0160 * 0161 03CC 8E 03 9E LDX #UXMSG3 0162 03CF 17 FF 8B LBSR PDATA1 0163 03D2 17 FF 3C UXSUB1 LBSR INTER 0164 03D5 29 FB BVS UXSUB1 0165 03D7 17 FF 6A LBSR OUTTER 0166 03DA 81 30 CMPA #'0 0167 03DC 10 25 01 2E LBLO UXEXIT 0168 03E0 81 33 CMPA #'3 0169 03E2 10 22 01 28 LBHI UXEXIT 0170 03E6 80 30 SUBA #'0 0171 03E8 B7 01 07 STA DRVNUM 0172 * 0173 * Report selected drive 0174 * 0175 03EB 8E 03 9E LDX #UXMSG3 0176 03EE 17 FF 6C LBSR PDATA1 0177 03F1 B6 01 07 LDA DRVNUM 0178 03F4 8B 30 ADDA #'0 0179 03F6 17 FF 4B LBSR OUTTER 0180 * 0181 * Ask for confirmation (Y/N) 0182 * 0183 03F9 8E 03 AF LDX #UXMSG4 0184 03FC 17 FF 5E LBSR PDATA1 0185 03FF 17 FF 0F UXSUB2 LBSR INTER 0186 0402 29 FB BVS UXSUB2 0187 0404 17 FF 3D LBSR OUTTER 0188 0407 84 5F ANDA #$5F 0189 0409 81 4E CMPA #'N 0190 040B 10 27 00 FF LBEQ UXEXIT 0191 040F 81 59 CMPA #'Y 0192 0411 26 B3 BNE UXSUB 0193 * 0194 * We have confirmation ... now load the disk image 0195 * 0196 0413 17 01 B1 LBSR INITDR 0197 0416 CE 05 37 LDU #XSTST 0198 0419 FF 01 0D STU XSTATE 0199 041C 86 01 LDA #1 0200 041E B7 01 0B STA BLKNUM 0201 * 0202 * Sector1 0203 * 0204 0421 8E 02 00 LDX #BUFFER 0205 * 0206 0424 4F CLRA TRACK 0 0207 0425 C6 01 LDB #$01 SECTOR 1 0208 0427 B7 01 08 STA TRACK 0209 042A F7 01 09 STB SECTOR 0210 * 0211 042D 17 00 EA LBSR XREAD 0212 0430 10 25 00 E0 LBCS UXERR 0213 0434 17 01 87 LBSR XACK 0214 0437 17 00 E0 LBSR XREAD 0215 043A 10 25 00 D6 LBCS UXERR 0216 * 0217 043E 8E 02 00 LDX #BUFFER 0218 0441 B6 01 08 LDA TRACK 0219 0444 F6 01 09 LDB SECTOR 0220 0447 17 01 C5 LBSR WRITSC 0221 044A 17 01 71 LBSR XACK 0222 * 0223 * Sector 2 0224 * 0225 044D 8E 02 00 LDX #BUFFER 0226 * 0227 0450 B6 01 08 LDA TRACK 0228 0453 F6 01 09 LDB SECTOR 0229 0456 5C INCB 0230 0457 B7 01 08 STA TRACK 0231 045A F7 01 09 STB SECTOR 0232 * 0233 045D 17 00 BA LBSR XREAD 0234 0460 10 25 00 B0 LBCS UXERR 0235 0464 17 01 57 LBSR XACK 0236 0467 17 00 B0 LBSR XREAD 0237 046A 10 25 00 A6 LBCS UXERR 0238 * 0239 046E 8E 02 00 LDX #BUFFER 0240 0471 B6 01 08 LDA TRACK 0241 0474 F6 01 09 LDB SECTOR 0242 0477 17 01 95 LBSR WRITSC 0243 * 0244 047A 17 01 41 LBSR XACK 0245 * 0246 * Sector 3 - SIR 0247 * 0248 047D 8E 02 00 LDX #BUFFER 0249 * 0250 0480 B6 01 08 LDA TRACK 0251 0483 F6 01 09 LDB SECTOR 0252 0486 5C INCB 0253 0487 B7 01 08 STA TRACK 0254 048A F7 01 09 STB SECTOR 0255 * 0256 048D 17 00 8A LBSR XREAD 0257 0490 10 25 00 80 LBCS UXERR 0258 0494 17 01 27 LBSR XACK 0259 0497 17 00 80 LBSR XREAD 0260 049A 10 25 00 76 LBCS UXERR 0261 * 0262 049E 8E 02 00 LDX #BUFFER 0263 04A1 A6 88 26 LDA 38,X 0264 04A4 4C INCA 0265 04A5 B7 01 12 STA MAXTRK 0266 04A8 E6 88 27 LDB 39,X 0267 04AB 5C INCB 0268 04AC F7 01 13 STB MAXSEC 0269 04AF B6 01 08 LDA TRACK 0270 04B2 F6 01 09 LDB SECTOR 0271 04B5 17 01 57 LBSR WRITSC 0272 * 0273 04B8 17 01 03 LBSR XACK 0274 * 0275 * Sector 4 to Last Track & Sector 0276 * 0277 * 0278 04BB B6 01 08 LDA TRACK 0279 04BE F6 01 09 LDB SECTOR 0280 04C1 5C INCB 0281 * 0282 04C2 8E 02 00 UXLOOP LDX #BUFFER 0283 04C5 B7 01 08 STA TRACK 0284 04C8 F7 01 09 STB SECTOR 0285 * 0286 04CB 17 00 4C LBSR XREAD 0287 04CE 10 25 00 42 LBCS UXERR 0288 04D2 17 00 E9 LBSR XACK 0289 04D5 17 00 42 LBSR XREAD 0290 04D8 10 25 00 38 LBCS UXERR 0291 * 0292 04DC 8E 02 00 LDX #BUFFER 0293 04DF B6 01 08 LDA TRACK 0294 04E2 F6 01 09 LDB SECTOR 0295 04E5 17 01 27 LBSR WRITSC 0296 04E8 17 00 D3 LBSR XACK 0297 * 0298 04EB B6 01 08 LDA TRACK 0299 04EE F6 01 09 LDB SECTOR 0300 04F1 5C INCB 0301 04F2 F1 01 13 CMPB MAXSEC 0302 04F5 26 CB BNE UXLOOP 0303 04F7 C6 01 LDB #1 0304 04F9 4C INCA 0305 04FA B1 01 12 CMPA MAXTRK 0306 04FD 26 C3 BNE UXLOOP 0307 * 0308 * 0309 * Write Boot sector 0310 * 0311 04FF 8E C0 00 LDX #$C000 0312 0502 4F CLRA TRACK 0 0313 0503 C6 01 LDB #$01 SECTOR 1 0314 0505 B7 01 08 STA TRACK 0315 0508 F7 01 09 STB SECTOR 0316 050B 17 01 01 LBSR WRITSC 0317 * 0318 050E 8E 03 7D UXEXIT LDX #UXMES1 0319 0511 7E 03 5D JMP PDATA1 0320 * 0321 0514 8E 03 8F UXERR LDX #UXMES2 0322 0517 16 FE 43 LBRA PDATA1 0323 * 0324 * Get a Byte using XModem protocol 0325 * Carry clear => no errors 0326 * Carry set => errors 0327 * 0328 051A 34 40 XREAD PSHS U 0329 051C FE 01 0D LDU XSTATE 0330 * 0331 051F 17 FD EF XBYTE0 LBSR INTER 0332 0522 28 0A BVC XBYTE1 0333 0524 86 15 LDA #NAK 0334 0526 17 FE 1B LBSR OUTTER 0335 0529 CE 05 37 LDU #XSTST 0336 052C 20 F1 BRA XBYTE0 0337 * 0338 052E AD C4 XBYTE1 JSR ,U 0339 0530 26 ED BNE XBYTE0 0340 0532 FF 01 0D STU XSTATE 0341 0535 35 C0 PULS U,PC 0342 * 0343 * START - LOOK FOR SOH (START OF HEADER) = $01 0344 * 0345 0537 81 01 XSTST CMPA #SOH 0346 0539 26 06 BNE XSTST1 0347 053B CE 05 57 LDU #XSTBL 0348 053E 1C FA ANDCC #$FF-CFLAG-ZFLAG No abort, no valid data (no exit) 0349 0540 39 RTS 0350 * 0351 0541 81 04 XSTST1 CMPA #EOT 0352 0543 26 08 BNE XSTST2 0353 0545 86 06 LDA #ACK 0354 0547 17 FD FA LBSR OUTTER 0355 054A 1A 05 ORCC #CFLAG+ZFLAG Set (c)=1 abort & exit 0356 054C 39 RTS 0357 * 0358 054D 81 18 XSTST2 CMPA #CAN 0359 054F 26 03 BNE XSTST3 0360 0551 1A 05 ORCC #CFLAG+ZFLAG Set (c)=1 abort & exit 0361 0553 39 RTS 0362 * 0363 0554 1C FA XSTST3 ANDCC #$FF-CFLAG-ZFLAG 0364 0556 39 RTS 0365 * 0366 * Got SOH 0367 * Now get block number 0368 * 0369 0557 B1 01 0B XSTBL CMPA BLKNUM 0370 055A 26 06 BNE XSTBLE 0371 055C CE 05 6D LDU #XSTCOM 0372 055F 1C FA ANDCC #$FF-CFLAG-ZFLAG No abort, No valid data (no exit) 0373 0561 39 RTS 0374 * 0375 * Error in block number 0376 * 0377 0562 86 15 XSTBLE LDA #NAK 0378 0564 17 FD DD LBSR OUTTER 0379 0567 CE 05 37 LDU #XSTST 0380 056A 1C FA ANDCC #$FF-CFLAG-ZFLAG No abort, No valid data (no exit) 0381 056C 39 RTS 0382 * 0383 * Get complement of block number 0384 * 0385 056D 43 XSTCOM COMA 0386 056E B1 01 0B CMPA BLKNUM 0387 0571 26 EF BNE XSTBLE 0388 0573 7F 01 0A CLR CHKSUM 0389 0576 86 80 LDA #128 0390 0578 B7 01 0C STA BYTCNT 0391 057B CE 05 81 LDU #XSTDA 0392 057E 1C FA ANDCC #$FF-CFLAG-ZFLAG No abort, No valid data (no exit) 0393 0580 39 RTS 0394 * 0395 * Get data bytes 0396 * 0397 0581 34 02 XSTDA PSHS A 0398 0583 BB 01 0A ADDA CHKSUM 0399 0586 B7 01 0A STA CHKSUM 0400 0589 35 02 PULS A 0401 058B 7A 01 0C DEC BYTCNT 0402 058E 26 03 BNE XSTDA1 0403 0590 CE 05 98 LDU #XSTCK 0404 0593 A7 80 XSTDA1 STA ,X+ 0405 0595 1C FA ANDCC #$FF-CFLAG-ZFLAG No abort, no valid data (no exit) 0406 0597 39 RTS 0407 * 0408 * Byte count reached zero 0409 * Check checksum byte 0410 * 0411 0598 B1 01 0A XSTCK CMPA CHKSUM 0412 059B 26 0B BNE XSTCK1 retry if wrong checksum 0413 * 0414 * Checksum OK ... 0415 * increment block number 0416 * Don't send ACK until data written to CF 0417 * 0418 059D 7C 01 0B INC BLKNUM 0419 05A0 CE 05 37 LDU #XSTST 0420 05A3 1C FE ANDCC #$FF-CFLAG No abort 0421 05A5 1A 04 ORCC #ZFLAG Valid data (exit) 0422 05A7 39 RTS 0423 * 0424 * Checksum Error detected ... 0425 * Reset Sector counter in ACCB to last 128 byte boundary 0426 * and send NAK 0427 * 0428 05A8 34 04 XSTCK1 PSHS B 0429 05AA 1F 10 TFR X,D 0430 05AC 5A DECB 0431 05AD C4 80 ANDB #128 0432 05AF 1F 01 TFR D,X 0433 05B1 35 04 PULS B 0434 05B3 86 15 LDA #NAK 0435 05B5 17 FD 8C XSTCK2 LBSR OUTTER 0436 05B8 CE 05 37 LDU #XSTST 0437 05BB 1C FA ANDCC #$FF-CFLAG-ZFLAG No abort, no valid data (no exit) 0438 05BD 39 RTS 0439 * 0440 * Acknowledge Data Received 0441 * 0442 05BE 34 02 XACK PSHS A 0443 05C0 86 06 LDA #ACK 0444 05C2 17 FD 7F LBSR OUTTER 0445 05C5 35 82 PULS A,PC 0446 * 0447 * 0448 ** FLEX 9 COMPACT FLASH DISK DRIVERS 0449 * 0450 * FOR SYS09BUG 1.2 ON THE BURCHED B5-X300 0451 * WITH I/O MAPPED AT $XE000 0452 * AND ROM MAPPED AT $XF000 0453 * THE BURCHED B5-X300 HAS 256KBYTES OF SRAM 0454 * THE FIRST 64K IS USED BY FLEX, 0455 * THE SECOND 192K MAY BE USED AS A RAM DISK 0456 * 0457 * 0458 0010 IMASK EQU $10 IRQ MASK CC 0459 0040 FMASK EQU $40 FIRQ MASK CC 0460 FFF0 DATREG EQU $FFF0 DAT REGISTERS 0461 * 0462 E040 CF_BASE EQU $E040 0463 E040 CF_DATA EQU CF_BASE+0 0464 E041 CF_ERROR EQU CF_BASE+1 ; read error 0465 E041 CF_FEATURE EQU CF_BASE+1 ; write feature 0466 E042 CF_SCNT EQU CF_BASE+2 0467 E043 CF_SNUM EQU CF_BASE+3 0468 E044 CF_CLO EQU CF_BASE+4 0469 E045 CF_CHI EQU CF_BASE+5 0470 E046 CF_HEAD EQU CF_BASE+6 0471 E047 CF_STATUS EQU CF_BASE+7 ; read status 0472 E047 CF_COMAND EQU CF_BASE+7 ; write command 0473 * 0474 * Command Equates 0475 * 0476 0020 CMDREAD EQU $20 ; Read Single sector 0477 0030 CMDWRITE EQU $30 ; Write Single sector 0478 00EF CMDFEATURE EQU $EF 0479 0001 FEAT8BIT EQU $01 ; enable 8 bit transfers 0480 00E0 HEADLBA EQU $E0 0481 * 0482 * Status bit equates 0483 * 0484 0080 BSY EQU $80 0485 0040 DRDY EQU $40 0486 0008 DRQ EQU $08 0487 0001 ERR EQU $01 0488 * 0489 * 0490 * INITIALIZE CF CARD FOR 8 BIT LBA MODE 0491 * 0492 05C7 8D 7A INITDR BSR WAITRDY 0493 05C9 86 E0 LDA #HEADLBA 0494 05CB B7 E0 46 STA CF_HEAD 0495 05CE 86 01 LDA #FEAT8BIT 0496 05D0 B7 E0 41 STA CF_FEATURE 0497 05D3 86 EF LDA #CMDFEATURE 0498 05D5 B7 E0 47 STA CF_COMAND 0499 05D8 20 69 BRA WAITRDY 0500 * 0501 * Seek track and sector 0502 * A holds track number (0 - ??) 0503 * B holds sector number (1 - ??) 0504 * Sector numbers starts from 1 0505 * subtract 1 to start from sector 0 on CF 0506 * 0507 05DA 5A SEEKTS DECB 0508 05DB F7 E0 43 STB CF_SNUM 0509 05DE B7 E0 44 STA CF_CLO 0510 05E1 F6 01 07 LDB DRVNUM 0511 05E4 F7 E0 45 STB CF_CHI 0512 05E7 C6 01 LDB #$01 0513 05E9 F7 E0 42 STB CF_SCNT 0514 05EC 5F CLRB 0515 05ED 39 RTS 0516 * 0517 * READ SECTORS FROM CF 0518 * 0519 * 0520 05EE 8D EA READSC BSR SEEKTS 0521 05F0 86 20 LDA #CMDREAD ; IDE READ MULTIPLE 0522 05F2 B7 E0 47 STA CF_COMAND 0523 05F5 8D 4C BSR WAITRDY 0524 * 0525 * READ LOOP 0526 * 0527 05F7 5F CLRB 0528 05F8 8D 58 RDLP1 BSR WAITDRQ 0529 05FA B6 E0 40 LDA CF_DATA 0530 05FD A7 80 STA ,X+ 0531 05FF 5A DECB 0532 0600 26 F6 BNE RDLP1 0533 * 0534 0602 5F CLRB 0535 0603 8D 4D RDLP2 BSR WAITDRQ 0536 0605 B6 E0 40 LDA CF_DATA 0537 0608 5A DECB 0538 0609 26 F8 BNE RDLP2 0539 * 0540 060B 8D 36 BSR WAITRDY 0541 060D 5F CLRB 0542 060E 39 RTS 0543 * 0544 * WRITE SECTOR TO CF 0545 * 0546 060F 8D C9 WRITSC BSR SEEKTS ; SEEK TRACK & SECTOR 0547 0611 86 30 LDA #CMDWRITE ; IDE WRITE MULTIPLE 0548 0613 B7 E0 47 STA CF_COMAND 0549 0616 8D 2B BSR WAITRDY 0550 * 0551 * WRITE LOOP 0552 * 0553 0618 5F CLRB 0554 0619 8D 37 WRTLP1 BSR WAITDRQ 0555 061B A6 80 LDA ,X+ 0556 061D B7 E0 40 STA CF_DATA 0557 0620 5A DECB 0558 0621 26 F6 BNE WRTLP1 0559 * 0560 0623 5F CLRB 0561 0624 8D 2C WRTLP2 BSR WAITDRQ 0562 0626 4F CLRA 0563 0627 B7 E0 40 STA CF_DATA 0564 062A 5A DECB 0565 062B 26 F7 BNE WRTLP2 0566 * 0567 062D 8D 14 BSR WAITRDY 0568 062F 5F CLRB 0569 0630 39 RTS 0570 * 0571 * CHECK FOR BUSY 0572 * Doubles as VERIFY 0573 * 0574 0631 5F BUSY CLRB Never busy 0575 0632 39 RTS 0576 * 0577 * DRIVE SELECT DISK DRIVER 0578 * 0579 0633 A6 03 DRVSEL LDA 3,X GET DRIVE # FROM FCB 0580 0635 81 03 CMPA #3 0581 0637 23 01 BLS DRVS2 IF > 3, SET IT TO 0 0582 0639 4F CLRA 0583 063A B7 01 07 DRVS2 STA DRVNUM 0584 063D 5F CLRB ; SET Z, CLEAR C 0585 063E 39 RTS 0586 * 0587 * CHECK DRIVE READY DISK DRIVER 0588 * 0589 063F A6 03 CHKDRV LDA 3,X 0590 0641 5F CLRB ; CLEAR C, SET Z 0591 0642 39 RTS 0592 * 0593 * WAIT UNTIL READY 0594 * 0595 0643 B6 E0 47 WAITRDY LDA CF_STATUS 0596 0646 85 80 BITA #BSY 0597 0648 26 F9 BNE WAITRDY 0598 064A B6 E0 47 LDA CF_STATUS 0599 064D 85 40 BITA #DRDY 0600 064F 27 F2 BEQ WAITRDY 0601 0651 39 RTS 0602 * 0603 * WAIT FOR DATA REQUEST 0604 * 0605 0652 B6 E0 47 WAITDRQ LDA CF_STATUS 0606 0655 85 08 BITA #DRQ 0607 0657 27 F9 BEQ WAITDRQ 0608 0659 39 RTS 0609 * 0610 ******************************************************* 0611 * 0612 * Bootstrap FLEX Loader 0613 * 0614 * SBUG1.8 loads the bootstap loader at $C000 0615 * however the Flex adaption manual has the 0616 * bootstrap loader residing at $C100 0617 * 0618 ****************************************************** 0619 * 0620 * Equates 0621 * 0622 C0FF STACK EQU $C0FF 0623 C300 SCTBUF EQU $C300 0624 * 0625 * Start of Utility 0626 * 0627 C000 ORG $C000 0628 C000 20 0B BOOT BRA LOAD0 0629 C002 00 00 00 FCB 0,0,0 0630 C005 00 TRK FCB 0 File start track 0631 C006 00 SCT FCB 0 File start sector 0632 C007 00 DNS FCB 0 Density Flag (not used) 0633 C008 C0 00 TADR FDB $C000 Transfer address 0634 C00A 00 00 LADR FDB 0 Load Address 0635 C00C 00 DRNUM FCB 0 Drive number 0 0636 * 0637 C00D 10 CE C0 FF LOAD0 LDS #STACK Set up stack 0638 C011 FC C0 05 LDD TRK Set up start track and sector 0639 C014 FD C3 00 STD SCTBUF 0640 C017 10 8E C4 00 LDY #SCTBUF+256 0641 * 0642 * Perform actual file load 0643 * 0644 C01B 8D 35 LOAD1 BSR GETCH Get acharcater 0645 C01D 81 02 CMPA #$02 Data record hearder ? 0646 C01F 27 10 BEQ LOAD2 Skip, is so 0647 C021 81 16 CMPA #$16 Xfr address hearder ? 0648 C023 26 F6 BNE LOAD1 Loop if neither 0649 * 0650 * Get transfer address 0651 * 0652 C025 8D 2B BSR GETCH 0653 C027 B7 C0 08 STA TADR 0654 C02A 8D 26 BSR GETCH 0655 C02C B7 C0 09 STA TADR+1 0656 C02F 20 EA BRA LOAD1 0657 * 0658 * Load data record 0659 * 0660 C031 8D 1F LOAD2 BSR GETCH Get load address 0661 C033 B7 C0 0A STA LADR 0662 C036 8D 1A BSR GETCH 0663 C038 B7 C0 0B STA LADR+1 0664 C03B 8D 15 BSR GETCH Get Bytes count 0665 C03D 1F 89 TFR A,B 0666 C03F 5D TSTB 0667 C040 27 D9 BEQ LOAD1 Loop if count = 0 0668 C042 BE C0 0A LDX LADR Get load address 0669 C045 34 14 LOAD3 PSHS B,X 0670 C047 8D 09 BSR GETCH Get data character 0671 C049 35 14 PULS B,X 0672 C04B A7 80 STA ,X+ Store at load address 0673 C04D 5A DECB 0674 C04E 26 F5 BNE LOAD3 Loop until count = 0 0675 C050 20 C9 BRA LOAD1 0676 * 0677 * Get Character routine 0678 * Reads a sector if needed 0679 * 0680 C052 10 8C C4 00 GETCH CMPY #SCTBUF+256 out of data ? 0681 C056 26 0F BNE GETCH4 Go read Character if not 0682 C058 8E C3 00 GETCH2 LDX #SCTBUF Point to buffer 0683 C05B EC 84 LDD 0,X Get forward Link 0684 C05D 27 0B BEQ GO if zero, file is loaded 0685 C05F 8D 21 BSR READ Read next sector 0686 C061 26 9D BNE BOOT start over if error 0687 C063 10 8E C3 04 LDY #SCTBUF+4 Point past link 0688 C067 A6 A0 GETCH4 LDA ,Y+ Else, get a character 0689 C069 39 RTS 0690 * 0691 * File is loaded, Jump to it 0692 * 0693 C06A 6E 9F C0 08 GO JMP [TADR] Jump to transfer address 0694 0695 * 0696 ** FLEX 9 COMPACT FLASH DISK DRIVERS 0697 * 0698 * FOR SYS09BUG 1.2 ON THE BURCHED B5-X300 0699 * WITH I/O MAPPED AT $XE000 0700 * AND ROM MAPPED AT $XF000 0701 * THE BURCHED B5-X300 HAS 256KBYTES OF SRAM 0702 * THE FIRST 64K IS USED BY FLEX, 0703 * THE SECOND 192K MAY BE USED AS A RAM DISK 0704 * 0705 * 0706 *IMASK EQU $10 IRQ MASK CC 0707 *FMASK EQU $40 FIRQ MASK CC 0708 *DATREG EQU $FFF0 DAT REGISTERS 0709 * 0710 *CF_BASE EQU $E040 0711 *CF_DATA EQU CF_BASE+0 0712 *CF_ERROR EQU CF_BASE+1 ; read error 0713 *CF_FEATURE EQU CF_BASE+1 ; write feature 0714 *CF_SCNT EQU CF_BASE+2 0715 *CF_SNUM EQU CF_BASE+3 0716 *CF_CLO EQU CF_BASE+4 0717 *CF_CHI EQU CF_BASE+5 0718 *CF_HEAD EQU CF_BASE+6 0719 *CF_STATUS EQU CF_BASE+7 ; read status 0720 *CF_COMAND EQU CF_BASE+7 ; write command 0721 * 0722 * Command Equates 0723 * 0724 *CMDREAD EQU $20 ; Read Single sector 0725 *CMDWRITE EQU $30 ; Write Single sector 0726 *CMDFEATURE EQU $EF 0727 *FEAT8BIT EQU $01 ; enable 8 bit transfers 0728 *HEADLBA EQU $E0 0729 * 0730 * Status bit equates 0731 * 0732 *BSY EQU $80 0733 *DRDY EQU $40 0734 *DRQ EQU $08 0735 *ERR EQU $01 0736 * 0737 * Seek track and sector 0738 * A holds track number (0 - ??) 0739 * B holds sector number (1 - ??) 0740 * Sector numbers starts from 1 0741 * subtract 1 to start from sector 0 on CF 0742 * 0743 C06E 5A SEEK DECB 0744 C06F F7 E0 43 STB CF_SNUM 0745 C072 B7 E0 44 STA CF_CLO 0746 C075 F6 C0 0C LDB DRNUM 0747 C078 F7 E0 45 STB CF_CHI 0748 C07B C6 01 LDB #$01 0749 C07D F7 E0 42 STB CF_SCNT 0750 C080 5F CLRB 0751 C081 39 RTS 0752 * 0753 * READ SECTORS FROM CF 0754 * 0755 * 0756 C082 8D EA READ BSR SEEK 0757 C084 86 20 LDA #CMDREAD ; IDE READ MULTIPLE 0758 C086 B7 E0 47 STA CF_COMAND 0759 C089 8D 18 BSR WTRDY 0760 * 0761 * READ LOOP 0762 * 0763 C08B 5F CLRB 0764 C08C 8D 24 READ1 BSR WTDRQ 0765 C08E B6 E0 40 LDA CF_DATA 0766 C091 A7 80 STA ,X+ 0767 C093 5A DECB 0768 C094 26 F6 BNE READ1 0769 * 0770 C096 5F CLRB 0771 C097 8D 19 READ2 BSR WTDRQ 0772 C099 B6 E0 40 LDA CF_DATA 0773 C09C 5A DECB 0774 C09D 26 F8 BNE READ2 0775 * 0776 C09F 8D 02 BSR WTRDY 0777 C0A1 5F CLRB 0778 C0A2 39 RTS 0779 * 0780 * WAIT UNTIL READY 0781 * 0782 C0A3 B6 E0 47 WTRDY LDA CF_STATUS 0783 C0A6 85 80 BITA #BSY 0784 C0A8 26 F9 BNE WTRDY 0785 C0AA B6 E0 47 LDA CF_STATUS 0786 C0AD 85 40 BITA #DRDY 0787 C0AF 27 F2 BEQ WTRDY 0788 C0B1 39 RTS 0789 * 0790 * WAIT FOR DATA REQUEST 0791 * 0792 C0B2 B6 E0 47 WTDRQ LDA CF_STATUS 0793 C0B5 85 08 BITA #DRQ 0794 C0B7 27 F9 BEQ WTDRQ 0795 C0B9 39 RTS 0796 * 0797 END START Program + Init Data = 1064 bytes Error count = 0 @ 1.1 log @Updated software - XSA-3S1000 now runs FLEX on an IDE drive or CF card. @ text @@ 1.1.2.1 log @Switch to makefile. Renamed .txt to .asm. Removed derived objects. @ text @@