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dilbert57 |
Assembler release DWC_2.0 version 2.11
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May 6, 2004 (c) Motorola (free ware)
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0001 *
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0002 ** FLEX 9 DISK DRIVERS
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0003 *
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0004 * FOR SYS09BUG ON THE DIGILENT SPARTAN 3 STARTER BOARD
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0005 * WITH I/O MAPPED AT $XE000
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0006 * AND ROM MAPPED AT $XF000
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0007 * THE DIGILENT SPARTAN 3 STARTER BOARD HAS 1MBYTE OF SRAM
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0008 * THE FIRST 64K IS USED BY FLEX,
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0009 * THE SECOND 128K IS USED AS A ROM DISK
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0010 * THE REMAINING RAM IS USED FOR A RAM DISK
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0011 *
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0012 *
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0013 0001 CFLAG EQU $01 CARRY FLAG
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0014 0002 VFLAG EQU $02 OVERFLOW FLAG
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0015 0004 ZFLAG EQU $04 ZERO FLAG
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0016 0008 NFLAG EQU $08 NEGATIVE FLAG
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0017 0010 IFLAG EQU $10 IRQ MASK CC
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0018 0020 HFLAG EQU $20 HALF CARRY
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0019 0040 FFLAG EQU $40 FIRQ MASK CC
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0020 0080 EFLAG EQU $80 ENTIRE FLAG
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0021 *
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0022 0000 MAPPAG EQU $00 PAGE $0000 DAT ADDRESS
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0023 *
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0024 * Serial Port
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0025 *
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0026 E000 ACIAS EQU $E000
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0027 E000 ACIAC1 EQU ACIAS
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0028 E001 ACIAD1 EQU ACIAS+1
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0029 04E2 DELCON EQU 1250 Delay (Processor clock in MHz * 50)
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0030 *
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0031 * XMODEM Control characters
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0032 *
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0033 0001 SOH EQU $01
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0034 0004 EOT EQU $04
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0035 0006 ACK EQU $06
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0036 0015 NAK EQU $15
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0037 0018 CAN EQU $18
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0038 *
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0039 * Some dummy Constants
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0040 *
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0041 0030 RMAXTRK EQU 48
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0042 000E RMAXSEC EQU 14
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0043 0292 RTOTSEC EQU RMAXTRK*RMAXSEC-RMAXSEC
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0044 *
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0045 * Start
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0046 *
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0047 0100 ORG $0100
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0048 0100 17 02 C3 START LBSR UXSUB
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0049 0103 6E 9F F8 00 JMP [$F800] Jump to monitor on Completion.
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0050 *
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0051 *
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0052 * RAM SPACE
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0053 *
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0054 0107 00 DRVNUM FCB 0
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0055 0108 00 TRACK FCB 0
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0056 0109 00 SECTOR FCB 0
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0057 010A 00 CHKSUM FCB 0
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0058 010B 00 BLKNUM FCB 0 Xmodem block number
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0059 010C 00 BYTCNT FCB 0 Xmodem byte count
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0060 010D 00 00 XSTATE FDB 0 Xmodem State Vector
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0061 010F 00 00 00 DELCNT FCB $00,$00,$00 Xmodem Poll timer
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0062 0112 00 MAXTRK FCB 0
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0063 0113 00 MAXSEC FCB 0
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0064 0200 ORG $0200
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0065 *
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0066 * SECTOR BUFFER
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0067 *
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0068 0200 BUFFER RMB 256
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0069 *
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0070 * ACIA INPUT TEST
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0071 *
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0072 0300 B6 E0 00 INTEST LDA ACIAC1
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0073 0303 85 01 BITA #$01
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0074 0305 39 RTS
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0075 *
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0076 * RESET ACIA
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0077 *
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0078 0306 86 03 ACIRST LDA #$03 master reset
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0079 0308 B7 E0 00 STA ACIAC1
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0080 030B 86 11 LDA #$11
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0081 030D B7 E0 00 STA ACIAC1
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0082 0310 39 RTS
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0083 *
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0084 * ACIA INPUT
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0085 *
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0086 0311 86 10 INTER LDA #16
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0087 0313 B7 01 0F STA DELCNT+0
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0088 0316 7F 01 10 CLR DELCNT+1
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0089 0319 7F 01 11 CLR DELCNT+2
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0090 031C B6 E0 00 INTER0 LDA ACIAC1
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0091 031F 85 01 BITA #$01
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0092 0321 26 08 BNE INTER1
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0093 0323 85 78 BITA #$78
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0094 0325 27 0A BEQ INTER2
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0095 0327 8D DD BSR ACIRST
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0096 0329 20 E6 BRA INTER
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0097 *
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0098 032B B6 E0 01 INTER1 LDA ACIAD1
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0099 032E 1C FD ANDCC #$FF-VFLAG
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0100 0330 39 RTS
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0101 *
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0102 0331 7A 01 11 INTER2 DEC DELCNT+2
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0103 0334 26 E6 BNE INTER0
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0104 0336 7A 01 10 DEC DELCNT+1
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0105 0339 26 E1 BNE INTER0
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0106 033B 7A 01 0F DEC DELCNT+0
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0107 033E 26 DC BNE INTER0
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0108 0340 4F CLRA
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0109 0341 1A 02 ORCC #VFLAG
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0110 0343 39 RTS
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0111 *
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0112 * ACIA OUTPUT
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0113 *
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0114 0344 34 02 OUTTER PSHS A
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0115 *
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0116 0346 B6 E0 00 OUTTE1 LDA ACIAC1
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0117 0349 85 02 BITA #$02
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0118 034B 26 08 BNE OUTTE2
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0119 034D 85 78 BITA #$78
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0120 034F 27 F5 BEQ OUTTE1
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0121 0351 8D B3 BSR ACIRST
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0122 0353 20 F1 BRA OUTTE1
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0123 *
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0124 0355 35 02 OUTTE2 PULS A
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0125 0357 B7 E0 01 STA ACIAD1
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0126 035A 39 RTS
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0127 *
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0128 * Print Data
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0129 *
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0130 035B 8D E7 PDATA0 BSR OUTTER
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0131 035D A6 80 PDATA1 LDA ,X+
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0132 035F 81 04 CMPA #$04
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0133 0361 26 F8 BNE PDATA0
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0134 0363 39 RTS
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0135 *
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0136 ** 'UX' Xmodem ROM Disk upload
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0137 *
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0138 0364 0D 0A UXMES0 FCB $0D,$0A
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0139 0366 58 6D 6F 64 65 6D FCC 'Xmodem ROM Disk Upload'
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20 52 4F 4D 20 44
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69 73 6B 20 55 70
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6C 6F 61 64
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0140 037C 04 FCB 4
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0141 037D 0D 0A UXMES1 FCB $0D,$0A
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0142 037F 55 70 6C 6F 61 64 FCC 'Upload Complete'
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20 43 6F 6D 70 6C
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65 74 65
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0143 038E 04 FCB 4
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0144 038F 0D 0A UXMES2 FCB $0D,$0A
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0145 0391 55 70 6C 6F 61 64 FCC 'Upload Error'
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20 45 72 72 6F 72
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0146 039D 04 FCB 4
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0147 039E 0D 0A UXMSG3 FCB $0D,$0A
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0148 03A0 44 72 69 76 65 20 FCC 'Drive Number :'
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4E 75 6D 62 65 72
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20 3A
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0149 03AE 04 FCB 4
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0150 03AF 0D 0A UXMSG4 FCB $0D,$0A
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0151 03B1 41 72 65 20 59 6F FCC 'Are You Sure ? (Y/N)'
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75 20 53 75 72 65
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20 3F 20 28 59 2F
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4E 29
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0152 03C5 04 FCB 4
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0153 *
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0154 * Print Banner
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0155 *
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0156 03C6 8E 03 64 UXSUB LDX #UXMES0
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0157 03C9 17 FF 91 LBSR PDATA1
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0158 *
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0159 * Prompt for Disk drive number (0 to 3)
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0160 *
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0161 03CC 8E 03 9E LDX #UXMSG3
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0162 03CF 17 FF 8B LBSR PDATA1
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0163 03D2 17 FF 3C UXSUB1 LBSR INTER
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0164 03D5 29 FB BVS UXSUB1
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0165 03D7 17 FF 6A LBSR OUTTER
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0166 03DA 81 30 CMPA #'0
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0167 03DC 10 25 01 2E LBLO UXEXIT
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0168 03E0 81 33 CMPA #'3
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0169 03E2 10 22 01 28 LBHI UXEXIT
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0170 03E6 80 30 SUBA #'0
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0171 03E8 B7 01 07 STA DRVNUM
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0172 *
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0173 * Report selected drive
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0174 *
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0175 03EB 8E 03 9E LDX #UXMSG3
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0176 03EE 17 FF 6C LBSR PDATA1
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| 190 |
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0177 03F1 B6 01 07 LDA DRVNUM
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| 191 |
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0178 03F4 8B 30 ADDA #'0
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| 192 |
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0179 03F6 17 FF 4B LBSR OUTTER
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0180 *
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0181 * Ask for confirmation (Y/N)
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0182 *
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0183 03F9 8E 03 AF LDX #UXMSG4
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0184 03FC 17 FF 5E LBSR PDATA1
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0185 03FF 17 FF 0F UXSUB2 LBSR INTER
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0186 0402 29 FB BVS UXSUB2
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0187 0404 17 FF 3D LBSR OUTTER
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0188 0407 84 5F ANDA #$5F
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0189 0409 81 4E CMPA #'N
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0190 040B 10 27 00 FF LBEQ UXEXIT
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0191 040F 81 59 CMPA #'Y
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0192 0411 26 B3 BNE UXSUB
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0193 *
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0194 * We have confirmation ... now load the disk image
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0195 *
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| 209 |
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0196 0413 17 01 B1 LBSR INITDR
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| 210 |
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0197 0416 CE 05 37 LDU #XSTST
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| 211 |
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0198 0419 FF 01 0D STU XSTATE
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| 212 |
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0199 041C 86 01 LDA #1
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0200 041E B7 01 0B STA BLKNUM
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| 214 |
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0201 *
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| 215 |
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0202 * Sector1
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| 216 |
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0203 *
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| 217 |
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0204 0421 8E 02 00 LDX #BUFFER
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| 218 |
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0205 *
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| 219 |
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0206 0424 4F CLRA TRACK 0
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| 220 |
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0207 0425 C6 01 LDB #$01 SECTOR 1
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| 221 |
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0208 0427 B7 01 08 STA TRACK
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| 222 |
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0209 042A F7 01 09 STB SECTOR
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| 223 |
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0210 *
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| 224 |
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0211 042D 17 00 EA LBSR XREAD
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| 225 |
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0212 0430 10 25 00 E0 LBCS UXERR
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| 226 |
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0213 0434 17 01 87 LBSR XACK
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| 227 |
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0214 0437 17 00 E0 LBSR XREAD
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| 228 |
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0215 043A 10 25 00 D6 LBCS UXERR
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| 229 |
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0216 *
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| 230 |
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0217 043E 8E 02 00 LDX #BUFFER
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0218 0441 B6 01 08 LDA TRACK
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| 232 |
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0219 0444 F6 01 09 LDB SECTOR
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| 233 |
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0220 0447 17 01 C5 LBSR WRITSC
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| 234 |
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0221 044A 17 01 71 LBSR XACK
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| 235 |
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0222 *
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| 236 |
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0223 * Sector 2
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| 237 |
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0224 *
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| 238 |
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0225 044D 8E 02 00 LDX #BUFFER
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| 239 |
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0226 *
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| 240 |
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0227 0450 B6 01 08 LDA TRACK
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| 241 |
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0228 0453 F6 01 09 LDB SECTOR
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| 242 |
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0229 0456 5C INCB
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| 243 |
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0230 0457 B7 01 08 STA TRACK
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| 244 |
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0231 045A F7 01 09 STB SECTOR
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| 245 |
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0232 *
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| 246 |
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0233 045D 17 00 BA LBSR XREAD
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| 247 |
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0234 0460 10 25 00 B0 LBCS UXERR
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| 248 |
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0235 0464 17 01 57 LBSR XACK
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| 249 |
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0236 0467 17 00 B0 LBSR XREAD
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| 250 |
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0237 046A 10 25 00 A6 LBCS UXERR
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| 251 |
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0238 *
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| 252 |
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0239 046E 8E 02 00 LDX #BUFFER
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| 253 |
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0240 0471 B6 01 08 LDA TRACK
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| 254 |
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0241 0474 F6 01 09 LDB SECTOR
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| 255 |
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0242 0477 17 01 95 LBSR WRITSC
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| 256 |
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0243 *
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| 257 |
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0244 047A 17 01 41 LBSR XACK
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| 258 |
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0245 *
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| 259 |
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0246 * Sector 3 - SIR
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| 260 |
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0247 *
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| 261 |
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0248 047D 8E 02 00 LDX #BUFFER
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| 262 |
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0249 *
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| 263 |
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0250 0480 B6 01 08 LDA TRACK
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| 264 |
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0251 0483 F6 01 09 LDB SECTOR
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| 265 |
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0252 0486 5C INCB
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| 266 |
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0253 0487 B7 01 08 STA TRACK
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| 267 |
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0254 048A F7 01 09 STB SECTOR
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| 268 |
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0255 *
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| 269 |
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0256 048D 17 00 8A LBSR XREAD
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| 270 |
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0257 0490 10 25 00 80 LBCS UXERR
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| 271 |
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0258 0494 17 01 27 LBSR XACK
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| 272 |
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0259 0497 17 00 80 LBSR XREAD
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| 273 |
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0260 049A 10 25 00 76 LBCS UXERR
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| 274 |
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0261 *
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| 275 |
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0262 049E 8E 02 00 LDX #BUFFER
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| 276 |
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0263 04A1 A6 88 26 LDA 38,X
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| 277 |
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0264 04A4 4C INCA
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| 278 |
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0265 04A5 B7 01 12 STA MAXTRK
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| 279 |
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0266 04A8 E6 88 27 LDB 39,X
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| 280 |
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0267 04AB 5C INCB
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| 281 |
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0268 04AC F7 01 13 STB MAXSEC
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| 282 |
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0269 04AF B6 01 08 LDA TRACK
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| 283 |
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0270 04B2 F6 01 09 LDB SECTOR
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| 284 |
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0271 04B5 17 01 57 LBSR WRITSC
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| 285 |
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0272 *
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| 286 |
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0273 04B8 17 01 03 LBSR XACK
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| 287 |
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0274 *
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| 288 |
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0275 * Sector 4 to Last Track & Sector
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| 289 |
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0276 *
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| 290 |
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0277 *
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| 291 |
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0278 04BB B6 01 08 LDA TRACK
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| 292 |
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0279 04BE F6 01 09 LDB SECTOR
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| 293 |
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0280 04C1 5C INCB
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| 294 |
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0281 *
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| 295 |
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0282 04C2 8E 02 00 UXLOOP LDX #BUFFER
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| 296 |
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0283 04C5 B7 01 08 STA TRACK
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| 297 |
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0284 04C8 F7 01 09 STB SECTOR
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| 298 |
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0285 *
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| 299 |
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0286 04CB 17 00 4C LBSR XREAD
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| 300 |
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0287 04CE 10 25 00 42 LBCS UXERR
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| 301 |
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0288 04D2 17 00 E9 LBSR XACK
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| 302 |
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0289 04D5 17 00 42 LBSR XREAD
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| 303 |
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0290 04D8 10 25 00 38 LBCS UXERR
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| 304 |
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0291 *
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| 305 |
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0292 04DC 8E 02 00 LDX #BUFFER
|
| 306 |
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0293 04DF B6 01 08 LDA TRACK
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| 307 |
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0294 04E2 F6 01 09 LDB SECTOR
|
| 308 |
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0295 04E5 17 01 27 LBSR WRITSC
|
| 309 |
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0296 04E8 17 00 D3 LBSR XACK
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| 310 |
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0297 *
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| 311 |
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0298 04EB B6 01 08 LDA TRACK
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| 312 |
|
|
0299 04EE F6 01 09 LDB SECTOR
|
| 313 |
|
|
0300 04F1 5C INCB
|
| 314 |
|
|
0301 04F2 F1 01 13 CMPB MAXSEC
|
| 315 |
|
|
0302 04F5 26 CB BNE UXLOOP
|
| 316 |
|
|
0303 04F7 C6 01 LDB #1
|
| 317 |
|
|
0304 04F9 4C INCA
|
| 318 |
|
|
0305 04FA B1 01 12 CMPA MAXTRK
|
| 319 |
|
|
0306 04FD 26 C3 BNE UXLOOP
|
| 320 |
|
|
0307 *
|
| 321 |
|
|
0308 *
|
| 322 |
|
|
0309 * Write Boot sector
|
| 323 |
|
|
0310 *
|
| 324 |
|
|
0311 04FF 8E C0 00 LDX #$C000
|
| 325 |
|
|
0312 0502 4F CLRA TRACK 0
|
| 326 |
|
|
0313 0503 C6 01 LDB #$01 SECTOR 1
|
| 327 |
|
|
0314 0505 B7 01 08 STA TRACK
|
| 328 |
|
|
0315 0508 F7 01 09 STB SECTOR
|
| 329 |
|
|
0316 050B 17 01 01 LBSR WRITSC
|
| 330 |
|
|
0317 *
|
| 331 |
|
|
0318 050E 8E 03 7D UXEXIT LDX #UXMES1
|
| 332 |
|
|
0319 0511 7E 03 5D JMP PDATA1
|
| 333 |
|
|
0320 *
|
| 334 |
|
|
0321 0514 8E 03 8F UXERR LDX #UXMES2
|
| 335 |
|
|
0322 0517 16 FE 43 LBRA PDATA1
|
| 336 |
|
|
0323 *
|
| 337 |
|
|
0324 * Get a Byte using XModem protocol
|
| 338 |
|
|
0325 * Carry clear => no errors
|
| 339 |
|
|
0326 * Carry set => errors
|
| 340 |
|
|
0327 *
|
| 341 |
|
|
0328 051A 34 40 XREAD PSHS U
|
| 342 |
|
|
0329 051C FE 01 0D LDU XSTATE
|
| 343 |
|
|
0330 *
|
| 344 |
|
|
0331 051F 17 FD EF XBYTE0 LBSR INTER
|
| 345 |
|
|
0332 0522 28 0A BVC XBYTE1
|
| 346 |
|
|
0333 0524 86 15 LDA #NAK
|
| 347 |
|
|
0334 0526 17 FE 1B LBSR OUTTER
|
| 348 |
|
|
0335 0529 CE 05 37 LDU #XSTST
|
| 349 |
|
|
0336 052C 20 F1 BRA XBYTE0
|
| 350 |
|
|
0337 *
|
| 351 |
|
|
0338 052E AD C4 XBYTE1 JSR ,U
|
| 352 |
|
|
0339 0530 26 ED BNE XBYTE0
|
| 353 |
|
|
0340 0532 FF 01 0D STU XSTATE
|
| 354 |
|
|
0341 0535 35 C0 PULS U,PC
|
| 355 |
|
|
0342 *
|
| 356 |
|
|
0343 * START - LOOK FOR SOH (START OF HEADER) = $01
|
| 357 |
|
|
0344 *
|
| 358 |
|
|
0345 0537 81 01 XSTST CMPA #SOH
|
| 359 |
|
|
0346 0539 26 06 BNE XSTST1
|
| 360 |
|
|
0347 053B CE 05 57 LDU #XSTBL
|
| 361 |
|
|
0348 053E 1C FA ANDCC #$FF-CFLAG-ZFLAG No abort, no valid data (no exit)
|
| 362 |
|
|
0349 0540 39 RTS
|
| 363 |
|
|
0350 *
|
| 364 |
|
|
0351 0541 81 04 XSTST1 CMPA #EOT
|
| 365 |
|
|
0352 0543 26 08 BNE XSTST2
|
| 366 |
|
|
0353 0545 86 06 LDA #ACK
|
| 367 |
|
|
0354 0547 17 FD FA LBSR OUTTER
|
| 368 |
|
|
0355 054A 1A 05 ORCC #CFLAG+ZFLAG Set (c)=1 abort & exit
|
| 369 |
|
|
0356 054C 39 RTS
|
| 370 |
|
|
0357 *
|
| 371 |
|
|
0358 054D 81 18 XSTST2 CMPA #CAN
|
| 372 |
|
|
0359 054F 26 03 BNE XSTST3
|
| 373 |
|
|
0360 0551 1A 05 ORCC #CFLAG+ZFLAG Set (c)=1 abort & exit
|
| 374 |
|
|
0361 0553 39 RTS
|
| 375 |
|
|
0362 *
|
| 376 |
|
|
0363 0554 1C FA XSTST3 ANDCC #$FF-CFLAG-ZFLAG
|
| 377 |
|
|
0364 0556 39 RTS
|
| 378 |
|
|
0365 *
|
| 379 |
|
|
0366 * Got SOH
|
| 380 |
|
|
0367 * Now get block number
|
| 381 |
|
|
0368 *
|
| 382 |
|
|
0369 0557 B1 01 0B XSTBL CMPA BLKNUM
|
| 383 |
|
|
0370 055A 26 06 BNE XSTBLE
|
| 384 |
|
|
0371 055C CE 05 6D LDU #XSTCOM
|
| 385 |
|
|
0372 055F 1C FA ANDCC #$FF-CFLAG-ZFLAG No abort, No valid data (no exit)
|
| 386 |
|
|
0373 0561 39 RTS
|
| 387 |
|
|
0374 *
|
| 388 |
|
|
0375 * Error in block number
|
| 389 |
|
|
0376 *
|
| 390 |
|
|
0377 0562 86 15 XSTBLE LDA #NAK
|
| 391 |
|
|
0378 0564 17 FD DD LBSR OUTTER
|
| 392 |
|
|
0379 0567 CE 05 37 LDU #XSTST
|
| 393 |
|
|
0380 056A 1C FA ANDCC #$FF-CFLAG-ZFLAG No abort, No valid data (no exit)
|
| 394 |
|
|
0381 056C 39 RTS
|
| 395 |
|
|
0382 *
|
| 396 |
|
|
0383 * Get complement of block number
|
| 397 |
|
|
0384 *
|
| 398 |
|
|
0385 056D 43 XSTCOM COMA
|
| 399 |
|
|
0386 056E B1 01 0B CMPA BLKNUM
|
| 400 |
|
|
0387 0571 26 EF BNE XSTBLE
|
| 401 |
|
|
0388 0573 7F 01 0A CLR CHKSUM
|
| 402 |
|
|
0389 0576 86 80 LDA #128
|
| 403 |
|
|
0390 0578 B7 01 0C STA BYTCNT
|
| 404 |
|
|
0391 057B CE 05 81 LDU #XSTDA
|
| 405 |
|
|
0392 057E 1C FA ANDCC #$FF-CFLAG-ZFLAG No abort, No valid data (no exit)
|
| 406 |
|
|
0393 0580 39 RTS
|
| 407 |
|
|
0394 *
|
| 408 |
|
|
0395 * Get data bytes
|
| 409 |
|
|
0396 *
|
| 410 |
|
|
0397 0581 34 02 XSTDA PSHS A
|
| 411 |
|
|
0398 0583 BB 01 0A ADDA CHKSUM
|
| 412 |
|
|
0399 0586 B7 01 0A STA CHKSUM
|
| 413 |
|
|
0400 0589 35 02 PULS A
|
| 414 |
|
|
0401 058B 7A 01 0C DEC BYTCNT
|
| 415 |
|
|
0402 058E 26 03 BNE XSTDA1
|
| 416 |
|
|
0403 0590 CE 05 98 LDU #XSTCK
|
| 417 |
|
|
0404 0593 A7 80 XSTDA1 STA ,X+
|
| 418 |
|
|
0405 0595 1C FA ANDCC #$FF-CFLAG-ZFLAG No abort, no valid data (no exit)
|
| 419 |
|
|
0406 0597 39 RTS
|
| 420 |
|
|
0407 *
|
| 421 |
|
|
0408 * Byte count reached zero
|
| 422 |
|
|
0409 * Check checksum byte
|
| 423 |
|
|
0410 *
|
| 424 |
|
|
0411 0598 B1 01 0A XSTCK CMPA CHKSUM
|
| 425 |
|
|
0412 059B 26 0B BNE XSTCK1 retry if wrong checksum
|
| 426 |
|
|
0413 *
|
| 427 |
|
|
0414 * Checksum OK ...
|
| 428 |
|
|
0415 * increment block number
|
| 429 |
|
|
0416 * Don't send ACK until data written to CF
|
| 430 |
|
|
0417 *
|
| 431 |
|
|
0418 059D 7C 01 0B INC BLKNUM
|
| 432 |
|
|
0419 05A0 CE 05 37 LDU #XSTST
|
| 433 |
|
|
0420 05A3 1C FE ANDCC #$FF-CFLAG No abort
|
| 434 |
|
|
0421 05A5 1A 04 ORCC #ZFLAG Valid data (exit)
|
| 435 |
|
|
0422 05A7 39 RTS
|
| 436 |
|
|
0423 *
|
| 437 |
|
|
0424 * Checksum Error detected ...
|
| 438 |
|
|
0425 * Reset Sector counter in ACCB to last 128 byte boundary
|
| 439 |
|
|
0426 * and send NAK
|
| 440 |
|
|
0427 *
|
| 441 |
|
|
0428 05A8 34 04 XSTCK1 PSHS B
|
| 442 |
|
|
0429 05AA 1F 10 TFR X,D
|
| 443 |
|
|
0430 05AC 5A DECB
|
| 444 |
|
|
0431 05AD C4 80 ANDB #128
|
| 445 |
|
|
0432 05AF 1F 01 TFR D,X
|
| 446 |
|
|
0433 05B1 35 04 PULS B
|
| 447 |
|
|
0434 05B3 86 15 LDA #NAK
|
| 448 |
|
|
0435 05B5 17 FD 8C XSTCK2 LBSR OUTTER
|
| 449 |
|
|
0436 05B8 CE 05 37 LDU #XSTST
|
| 450 |
|
|
0437 05BB 1C FA ANDCC #$FF-CFLAG-ZFLAG No abort, no valid data (no exit)
|
| 451 |
|
|
0438 05BD 39 RTS
|
| 452 |
|
|
0439 *
|
| 453 |
|
|
0440 * Acknowledge Data Received
|
| 454 |
|
|
0441 *
|
| 455 |
|
|
0442 05BE 34 02 XACK PSHS A
|
| 456 |
|
|
0443 05C0 86 06 LDA #ACK
|
| 457 |
|
|
0444 05C2 17 FD 7F LBSR OUTTER
|
| 458 |
|
|
0445 05C5 35 82 PULS A,PC
|
| 459 |
|
|
0446 *
|
| 460 |
|
|
0447 *
|
| 461 |
|
|
0448 ** FLEX 9 COMPACT FLASH DISK DRIVERS
|
| 462 |
|
|
0449 *
|
| 463 |
|
|
0450 * FOR SYS09BUG 1.2 ON THE BURCHED B5-X300
|
| 464 |
|
|
0451 * WITH I/O MAPPED AT $XE000
|
| 465 |
|
|
0452 * AND ROM MAPPED AT $XF000
|
| 466 |
|
|
0453 * THE BURCHED B5-X300 HAS 256KBYTES OF SRAM
|
| 467 |
|
|
0454 * THE FIRST 64K IS USED BY FLEX,
|
| 468 |
|
|
0455 * THE SECOND 192K MAY BE USED AS A RAM DISK
|
| 469 |
|
|
0456 *
|
| 470 |
|
|
0457 *
|
| 471 |
|
|
0458 0010 IMASK EQU $10 IRQ MASK CC
|
| 472 |
|
|
0459 0040 FMASK EQU $40 FIRQ MASK CC
|
| 473 |
|
|
0460 FFF0 DATREG EQU $FFF0 DAT REGISTERS
|
| 474 |
|
|
0461 *
|
| 475 |
|
|
0462 E040 CF_BASE EQU $E040
|
| 476 |
|
|
0463 E040 CF_DATA EQU CF_BASE+0
|
| 477 |
|
|
0464 E041 CF_ERROR EQU CF_BASE+1 ; read error
|
| 478 |
|
|
0465 E041 CF_FEATURE EQU CF_BASE+1 ; write feature
|
| 479 |
|
|
0466 E042 CF_SCNT EQU CF_BASE+2
|
| 480 |
|
|
0467 E043 CF_SNUM EQU CF_BASE+3
|
| 481 |
|
|
0468 E044 CF_CLO EQU CF_BASE+4
|
| 482 |
|
|
0469 E045 CF_CHI EQU CF_BASE+5
|
| 483 |
|
|
0470 E046 CF_HEAD EQU CF_BASE+6
|
| 484 |
|
|
0471 E047 CF_STATUS EQU CF_BASE+7 ; read status
|
| 485 |
|
|
0472 E047 CF_COMAND EQU CF_BASE+7 ; write command
|
| 486 |
|
|
0473 *
|
| 487 |
|
|
0474 * Command Equates
|
| 488 |
|
|
0475 *
|
| 489 |
|
|
0476 0020 CMDREAD EQU $20 ; Read Single sector
|
| 490 |
|
|
0477 0030 CMDWRITE EQU $30 ; Write Single sector
|
| 491 |
|
|
0478 00EF CMDFEATURE EQU $EF
|
| 492 |
|
|
0479 0001 FEAT8BIT EQU $01 ; enable 8 bit transfers
|
| 493 |
|
|
0480 00E0 HEADLBA EQU $E0
|
| 494 |
|
|
0481 *
|
| 495 |
|
|
0482 * Status bit equates
|
| 496 |
|
|
0483 *
|
| 497 |
|
|
0484 0080 BSY EQU $80
|
| 498 |
|
|
0485 0040 DRDY EQU $40
|
| 499 |
|
|
0486 0008 DRQ EQU $08
|
| 500 |
|
|
0487 0001 ERR EQU $01
|
| 501 |
|
|
0488 *
|
| 502 |
|
|
0489 *
|
| 503 |
|
|
0490 * INITIALIZE CF CARD FOR 8 BIT LBA MODE
|
| 504 |
|
|
0491 *
|
| 505 |
|
|
0492 05C7 8D 7A INITDR BSR WAITRDY
|
| 506 |
|
|
0493 05C9 86 E0 LDA #HEADLBA
|
| 507 |
|
|
0494 05CB B7 E0 46 STA CF_HEAD
|
| 508 |
|
|
0495 05CE 86 01 LDA #FEAT8BIT
|
| 509 |
|
|
0496 05D0 B7 E0 41 STA CF_FEATURE
|
| 510 |
|
|
0497 05D3 86 EF LDA #CMDFEATURE
|
| 511 |
|
|
0498 05D5 B7 E0 47 STA CF_COMAND
|
| 512 |
|
|
0499 05D8 20 69 BRA WAITRDY
|
| 513 |
|
|
0500 *
|
| 514 |
|
|
0501 * Seek track and sector
|
| 515 |
|
|
0502 * A holds track number (0 - ??)
|
| 516 |
|
|
0503 * B holds sector number (1 - ??)
|
| 517 |
|
|
0504 * Sector numbers starts from 1
|
| 518 |
|
|
0505 * subtract 1 to start from sector 0 on CF
|
| 519 |
|
|
0506 *
|
| 520 |
|
|
0507 05DA 5A SEEKTS DECB
|
| 521 |
|
|
0508 05DB F7 E0 43 STB CF_SNUM
|
| 522 |
|
|
0509 05DE B7 E0 44 STA CF_CLO
|
| 523 |
|
|
0510 05E1 F6 01 07 LDB DRVNUM
|
| 524 |
|
|
0511 05E4 F7 E0 45 STB CF_CHI
|
| 525 |
|
|
0512 05E7 C6 01 LDB #$01
|
| 526 |
|
|
0513 05E9 F7 E0 42 STB CF_SCNT
|
| 527 |
|
|
0514 05EC 5F CLRB
|
| 528 |
|
|
0515 05ED 39 RTS
|
| 529 |
|
|
0516 *
|
| 530 |
|
|
0517 * READ SECTORS FROM CF
|
| 531 |
|
|
0518 *
|
| 532 |
|
|
0519 *
|
| 533 |
|
|
0520 05EE 8D EA READSC BSR SEEKTS
|
| 534 |
|
|
0521 05F0 86 20 LDA #CMDREAD ; IDE READ MULTIPLE
|
| 535 |
|
|
0522 05F2 B7 E0 47 STA CF_COMAND
|
| 536 |
|
|
0523 05F5 8D 4C BSR WAITRDY
|
| 537 |
|
|
0524 *
|
| 538 |
|
|
0525 * READ LOOP
|
| 539 |
|
|
0526 *
|
| 540 |
|
|
0527 05F7 5F CLRB
|
| 541 |
|
|
0528 05F8 8D 58 RDLP1 BSR WAITDRQ
|
| 542 |
|
|
0529 05FA B6 E0 40 LDA CF_DATA
|
| 543 |
|
|
0530 05FD A7 80 STA ,X+
|
| 544 |
|
|
0531 05FF 5A DECB
|
| 545 |
|
|
0532 0600 26 F6 BNE RDLP1
|
| 546 |
|
|
0533 *
|
| 547 |
|
|
0534 0602 5F CLRB
|
| 548 |
|
|
0535 0603 8D 4D RDLP2 BSR WAITDRQ
|
| 549 |
|
|
0536 0605 B6 E0 40 LDA CF_DATA
|
| 550 |
|
|
0537 0608 5A DECB
|
| 551 |
|
|
0538 0609 26 F8 BNE RDLP2
|
| 552 |
|
|
0539 *
|
| 553 |
|
|
0540 060B 8D 36 BSR WAITRDY
|
| 554 |
|
|
0541 060D 5F CLRB
|
| 555 |
|
|
0542 060E 39 RTS
|
| 556 |
|
|
0543 *
|
| 557 |
|
|
0544 * WRITE SECTOR TO CF
|
| 558 |
|
|
0545 *
|
| 559 |
|
|
0546 060F 8D C9 WRITSC BSR SEEKTS ; SEEK TRACK & SECTOR
|
| 560 |
|
|
0547 0611 86 30 LDA #CMDWRITE ; IDE WRITE MULTIPLE
|
| 561 |
|
|
0548 0613 B7 E0 47 STA CF_COMAND
|
| 562 |
|
|
0549 0616 8D 2B BSR WAITRDY
|
| 563 |
|
|
0550 *
|
| 564 |
|
|
0551 * WRITE LOOP
|
| 565 |
|
|
0552 *
|
| 566 |
|
|
0553 0618 5F CLRB
|
| 567 |
|
|
0554 0619 8D 37 WRTLP1 BSR WAITDRQ
|
| 568 |
|
|
0555 061B A6 80 LDA ,X+
|
| 569 |
|
|
0556 061D B7 E0 40 STA CF_DATA
|
| 570 |
|
|
0557 0620 5A DECB
|
| 571 |
|
|
0558 0621 26 F6 BNE WRTLP1
|
| 572 |
|
|
0559 *
|
| 573 |
|
|
0560 0623 5F CLRB
|
| 574 |
|
|
0561 0624 8D 2C WRTLP2 BSR WAITDRQ
|
| 575 |
|
|
0562 0626 4F CLRA
|
| 576 |
|
|
0563 0627 B7 E0 40 STA CF_DATA
|
| 577 |
|
|
0564 062A 5A DECB
|
| 578 |
|
|
0565 062B 26 F7 BNE WRTLP2
|
| 579 |
|
|
0566 *
|
| 580 |
|
|
0567 062D 8D 14 BSR WAITRDY
|
| 581 |
|
|
0568 062F 5F CLRB
|
| 582 |
|
|
0569 0630 39 RTS
|
| 583 |
|
|
0570 *
|
| 584 |
|
|
0571 * CHECK FOR BUSY
|
| 585 |
|
|
0572 * Doubles as VERIFY
|
| 586 |
|
|
0573 *
|
| 587 |
|
|
0574 0631 5F BUSY CLRB Never busy
|
| 588 |
|
|
0575 0632 39 RTS
|
| 589 |
|
|
0576 *
|
| 590 |
|
|
0577 * DRIVE SELECT DISK DRIVER
|
| 591 |
|
|
0578 *
|
| 592 |
|
|
0579 0633 A6 03 DRVSEL LDA 3,X GET DRIVE # FROM FCB
|
| 593 |
|
|
0580 0635 81 03 CMPA #3
|
| 594 |
|
|
0581 0637 23 01 BLS DRVS2 IF > 3, SET IT TO 0
|
| 595 |
|
|
0582 0639 4F CLRA
|
| 596 |
|
|
0583 063A B7 01 07 DRVS2 STA DRVNUM
|
| 597 |
|
|
0584 063D 5F CLRB ; SET Z, CLEAR C
|
| 598 |
|
|
0585 063E 39 RTS
|
| 599 |
|
|
0586 *
|
| 600 |
|
|
0587 * CHECK DRIVE READY DISK DRIVER
|
| 601 |
|
|
0588 *
|
| 602 |
|
|
0589 063F A6 03 CHKDRV LDA 3,X
|
| 603 |
|
|
0590 0641 5F CLRB ; CLEAR C, SET Z
|
| 604 |
|
|
0591 0642 39 RTS
|
| 605 |
|
|
0592 *
|
| 606 |
|
|
0593 * WAIT UNTIL READY
|
| 607 |
|
|
0594 *
|
| 608 |
|
|
0595 0643 B6 E0 47 WAITRDY LDA CF_STATUS
|
| 609 |
|
|
0596 0646 85 80 BITA #BSY
|
| 610 |
|
|
0597 0648 26 F9 BNE WAITRDY
|
| 611 |
|
|
0598 064A B6 E0 47 LDA CF_STATUS
|
| 612 |
|
|
0599 064D 85 40 BITA #DRDY
|
| 613 |
|
|
0600 064F 27 F2 BEQ WAITRDY
|
| 614 |
|
|
0601 0651 39 RTS
|
| 615 |
|
|
0602 *
|
| 616 |
|
|
0603 * WAIT FOR DATA REQUEST
|
| 617 |
|
|
0604 *
|
| 618 |
|
|
0605 0652 B6 E0 47 WAITDRQ LDA CF_STATUS
|
| 619 |
|
|
0606 0655 85 08 BITA #DRQ
|
| 620 |
|
|
0607 0657 27 F9 BEQ WAITDRQ
|
| 621 |
|
|
0608 0659 39 RTS
|
| 622 |
|
|
0609 *
|
| 623 |
|
|
0610 *******************************************************
|
| 624 |
|
|
0611 *
|
| 625 |
|
|
0612 * Bootstrap FLEX Loader
|
| 626 |
|
|
0613 *
|
| 627 |
|
|
0614 * SBUG1.8 loads the bootstap loader at $C000
|
| 628 |
|
|
0615 * however the Flex adaption manual has the
|
| 629 |
|
|
0616 * bootstrap loader residing at $C100
|
| 630 |
|
|
0617 *
|
| 631 |
|
|
0618 ******************************************************
|
| 632 |
|
|
0619 *
|
| 633 |
|
|
0620 * Equates
|
| 634 |
|
|
0621 *
|
| 635 |
|
|
0622 C0FF STACK EQU $C0FF
|
| 636 |
|
|
0623 C300 SCTBUF EQU $C300
|
| 637 |
|
|
0624 *
|
| 638 |
|
|
0625 * Start of Utility
|
| 639 |
|
|
0626 *
|
| 640 |
|
|
0627 C000 ORG $C000
|
| 641 |
|
|
0628 C000 20 0B BOOT BRA LOAD0
|
| 642 |
|
|
0629 C002 00 00 00 FCB 0,0,0
|
| 643 |
|
|
0630 C005 00 TRK FCB 0 File start track
|
| 644 |
|
|
0631 C006 00 SCT FCB 0 File start sector
|
| 645 |
|
|
0632 C007 00 DNS FCB 0 Density Flag (not used)
|
| 646 |
|
|
0633 C008 C0 00 TADR FDB $C000 Transfer address
|
| 647 |
|
|
0634 C00A 00 00 LADR FDB 0 Load Address
|
| 648 |
|
|
0635 C00C 00 DRNUM FCB 0 Drive number 0
|
| 649 |
|
|
0636 *
|
| 650 |
|
|
0637 C00D 10 CE C0 FF LOAD0 LDS #STACK Set up stack
|
| 651 |
|
|
0638 C011 FC C0 05 LDD TRK Set up start track and sector
|
| 652 |
|
|
0639 C014 FD C3 00 STD SCTBUF
|
| 653 |
|
|
0640 C017 10 8E C4 00 LDY #SCTBUF+256
|
| 654 |
|
|
0641 *
|
| 655 |
|
|
0642 * Perform actual file load
|
| 656 |
|
|
0643 *
|
| 657 |
|
|
0644 C01B 8D 35 LOAD1 BSR GETCH Get acharcater
|
| 658 |
|
|
0645 C01D 81 02 CMPA #$02 Data record hearder ?
|
| 659 |
|
|
0646 C01F 27 10 BEQ LOAD2 Skip, is so
|
| 660 |
|
|
0647 C021 81 16 CMPA #$16 Xfr address hearder ?
|
| 661 |
|
|
0648 C023 26 F6 BNE LOAD1 Loop if neither
|
| 662 |
|
|
0649 *
|
| 663 |
|
|
0650 * Get transfer address
|
| 664 |
|
|
0651 *
|
| 665 |
|
|
0652 C025 8D 2B BSR GETCH
|
| 666 |
|
|
0653 C027 B7 C0 08 STA TADR
|
| 667 |
|
|
0654 C02A 8D 26 BSR GETCH
|
| 668 |
|
|
0655 C02C B7 C0 09 STA TADR+1
|
| 669 |
|
|
0656 C02F 20 EA BRA LOAD1
|
| 670 |
|
|
0657 *
|
| 671 |
|
|
0658 * Load data record
|
| 672 |
|
|
0659 *
|
| 673 |
|
|
0660 C031 8D 1F LOAD2 BSR GETCH Get load address
|
| 674 |
|
|
0661 C033 B7 C0 0A STA LADR
|
| 675 |
|
|
0662 C036 8D 1A BSR GETCH
|
| 676 |
|
|
0663 C038 B7 C0 0B STA LADR+1
|
| 677 |
|
|
0664 C03B 8D 15 BSR GETCH Get Bytes count
|
| 678 |
|
|
0665 C03D 1F 89 TFR A,B
|
| 679 |
|
|
0666 C03F 5D TSTB
|
| 680 |
|
|
0667 C040 27 D9 BEQ LOAD1 Loop if count = 0
|
| 681 |
|
|
0668 C042 BE C0 0A LDX LADR Get load address
|
| 682 |
|
|
0669 C045 34 14 LOAD3 PSHS B,X
|
| 683 |
|
|
0670 C047 8D 09 BSR GETCH Get data character
|
| 684 |
|
|
0671 C049 35 14 PULS B,X
|
| 685 |
|
|
0672 C04B A7 80 STA ,X+ Store at load address
|
| 686 |
|
|
0673 C04D 5A DECB
|
| 687 |
|
|
0674 C04E 26 F5 BNE LOAD3 Loop until count = 0
|
| 688 |
|
|
0675 C050 20 C9 BRA LOAD1
|
| 689 |
|
|
0676 *
|
| 690 |
|
|
0677 * Get Character routine
|
| 691 |
|
|
0678 * Reads a sector if needed
|
| 692 |
|
|
0679 *
|
| 693 |
|
|
0680 C052 10 8C C4 00 GETCH CMPY #SCTBUF+256 out of data ?
|
| 694 |
|
|
0681 C056 26 0F BNE GETCH4 Go read Character if not
|
| 695 |
|
|
0682 C058 8E C3 00 GETCH2 LDX #SCTBUF Point to buffer
|
| 696 |
|
|
0683 C05B EC 84 LDD 0,X Get forward Link
|
| 697 |
|
|
0684 C05D 27 0B BEQ GO if zero, file is loaded
|
| 698 |
|
|
0685 C05F 8D 21 BSR READ Read next sector
|
| 699 |
|
|
0686 C061 26 9D BNE BOOT start over if error
|
| 700 |
|
|
0687 C063 10 8E C3 04 LDY #SCTBUF+4 Point past link
|
| 701 |
|
|
0688 C067 A6 A0 GETCH4 LDA ,Y+ Else, get a character
|
| 702 |
|
|
0689 C069 39 RTS
|
| 703 |
|
|
0690 *
|
| 704 |
|
|
0691 * File is loaded, Jump to it
|
| 705 |
|
|
0692 *
|
| 706 |
|
|
0693 C06A 6E 9F C0 08 GO JMP [TADR] Jump to transfer address
|
| 707 |
|
|
0694
|
| 708 |
|
|
0695 *
|
| 709 |
|
|
0696 ** FLEX 9 COMPACT FLASH DISK DRIVERS
|
| 710 |
|
|
0697 *
|
| 711 |
|
|
0698 * FOR SYS09BUG 1.2 ON THE BURCHED B5-X300
|
| 712 |
|
|
0699 * WITH I/O MAPPED AT $XE000
|
| 713 |
|
|
0700 * AND ROM MAPPED AT $XF000
|
| 714 |
|
|
0701 * THE BURCHED B5-X300 HAS 256KBYTES OF SRAM
|
| 715 |
|
|
0702 * THE FIRST 64K IS USED BY FLEX,
|
| 716 |
|
|
0703 * THE SECOND 192K MAY BE USED AS A RAM DISK
|
| 717 |
|
|
0704 *
|
| 718 |
|
|
0705 *
|
| 719 |
|
|
0706 *IMASK EQU $10 IRQ MASK CC
|
| 720 |
|
|
0707 *FMASK EQU $40 FIRQ MASK CC
|
| 721 |
|
|
0708 *DATREG EQU $FFF0 DAT REGISTERS
|
| 722 |
|
|
0709 *
|
| 723 |
|
|
0710 *CF_BASE EQU $E040
|
| 724 |
|
|
0711 *CF_DATA EQU CF_BASE+0
|
| 725 |
|
|
0712 *CF_ERROR EQU CF_BASE+1 ; read error
|
| 726 |
|
|
0713 *CF_FEATURE EQU CF_BASE+1 ; write feature
|
| 727 |
|
|
0714 *CF_SCNT EQU CF_BASE+2
|
| 728 |
|
|
0715 *CF_SNUM EQU CF_BASE+3
|
| 729 |
|
|
0716 *CF_CLO EQU CF_BASE+4
|
| 730 |
|
|
0717 *CF_CHI EQU CF_BASE+5
|
| 731 |
|
|
0718 *CF_HEAD EQU CF_BASE+6
|
| 732 |
|
|
0719 *CF_STATUS EQU CF_BASE+7 ; read status
|
| 733 |
|
|
0720 *CF_COMAND EQU CF_BASE+7 ; write command
|
| 734 |
|
|
0721 *
|
| 735 |
|
|
0722 * Command Equates
|
| 736 |
|
|
0723 *
|
| 737 |
|
|
0724 *CMDREAD EQU $20 ; Read Single sector
|
| 738 |
|
|
0725 *CMDWRITE EQU $30 ; Write Single sector
|
| 739 |
|
|
0726 *CMDFEATURE EQU $EF
|
| 740 |
|
|
0727 *FEAT8BIT EQU $01 ; enable 8 bit transfers
|
| 741 |
|
|
0728 *HEADLBA EQU $E0
|
| 742 |
|
|
0729 *
|
| 743 |
|
|
0730 * Status bit equates
|
| 744 |
|
|
0731 *
|
| 745 |
|
|
0732 *BSY EQU $80
|
| 746 |
|
|
0733 *DRDY EQU $40
|
| 747 |
|
|
0734 *DRQ EQU $08
|
| 748 |
|
|
0735 *ERR EQU $01
|
| 749 |
|
|
0736 *
|
| 750 |
|
|
0737 * Seek track and sector
|
| 751 |
|
|
0738 * A holds track number (0 - ??)
|
| 752 |
|
|
0739 * B holds sector number (1 - ??)
|
| 753 |
|
|
0740 * Sector numbers starts from 1
|
| 754 |
|
|
0741 * subtract 1 to start from sector 0 on CF
|
| 755 |
|
|
0742 *
|
| 756 |
|
|
0743 C06E 5A SEEK DECB
|
| 757 |
|
|
0744 C06F F7 E0 43 STB CF_SNUM
|
| 758 |
|
|
0745 C072 B7 E0 44 STA CF_CLO
|
| 759 |
|
|
0746 C075 F6 C0 0C LDB DRNUM
|
| 760 |
|
|
0747 C078 F7 E0 45 STB CF_CHI
|
| 761 |
|
|
0748 C07B C6 01 LDB #$01
|
| 762 |
|
|
0749 C07D F7 E0 42 STB CF_SCNT
|
| 763 |
|
|
0750 C080 5F CLRB
|
| 764 |
|
|
0751 C081 39 RTS
|
| 765 |
|
|
0752 *
|
| 766 |
|
|
0753 * READ SECTORS FROM CF
|
| 767 |
|
|
0754 *
|
| 768 |
|
|
0755 *
|
| 769 |
|
|
0756 C082 8D EA READ BSR SEEK
|
| 770 |
|
|
0757 C084 86 20 LDA #CMDREAD ; IDE READ MULTIPLE
|
| 771 |
|
|
0758 C086 B7 E0 47 STA CF_COMAND
|
| 772 |
|
|
0759 C089 8D 18 BSR WTRDY
|
| 773 |
|
|
0760 *
|
| 774 |
|
|
0761 * READ LOOP
|
| 775 |
|
|
0762 *
|
| 776 |
|
|
0763 C08B 5F CLRB
|
| 777 |
|
|
0764 C08C 8D 24 READ1 BSR WTDRQ
|
| 778 |
|
|
0765 C08E B6 E0 40 LDA CF_DATA
|
| 779 |
|
|
0766 C091 A7 80 STA ,X+
|
| 780 |
|
|
0767 C093 5A DECB
|
| 781 |
|
|
0768 C094 26 F6 BNE READ1
|
| 782 |
|
|
0769 *
|
| 783 |
|
|
0770 C096 5F CLRB
|
| 784 |
|
|
0771 C097 8D 19 READ2 BSR WTDRQ
|
| 785 |
|
|
0772 C099 B6 E0 40 LDA CF_DATA
|
| 786 |
|
|
0773 C09C 5A DECB
|
| 787 |
|
|
0774 C09D 26 F8 BNE READ2
|
| 788 |
|
|
0775 *
|
| 789 |
|
|
0776 C09F 8D 02 BSR WTRDY
|
| 790 |
|
|
0777 C0A1 5F CLRB
|
| 791 |
|
|
0778 C0A2 39 RTS
|
| 792 |
|
|
0779 *
|
| 793 |
|
|
0780 * WAIT UNTIL READY
|
| 794 |
|
|
0781 *
|
| 795 |
|
|
0782 C0A3 B6 E0 47 WTRDY LDA CF_STATUS
|
| 796 |
|
|
0783 C0A6 85 80 BITA #BSY
|
| 797 |
|
|
0784 C0A8 26 F9 BNE WTRDY
|
| 798 |
|
|
0785 C0AA B6 E0 47 LDA CF_STATUS
|
| 799 |
|
|
0786 C0AD 85 40 BITA #DRDY
|
| 800 |
|
|
0787 C0AF 27 F2 BEQ WTRDY
|
| 801 |
|
|
0788 C0B1 39 RTS
|
| 802 |
|
|
0789 *
|
| 803 |
|
|
0790 * WAIT FOR DATA REQUEST
|
| 804 |
|
|
0791 *
|
| 805 |
|
|
0792 C0B2 B6 E0 47 WTDRQ LDA CF_STATUS
|
| 806 |
|
|
0793 C0B5 85 08 BITA #DRQ
|
| 807 |
|
|
0794 C0B7 27 F9 BEQ WTDRQ
|
| 808 |
|
|
0795 C0B9 39 RTS
|
| 809 |
|
|
0796 *
|
| 810 |
|
|
0797 END START
|
| 811 |
|
|
Program + Init Data = 1064 bytes
|
| 812 |
|
|
Error count = 0
|
