TRON - Mt KFest 2009

Why? No CD support for 8-Bit Apple II's CD support in the IIGS requires expensive SCSI cards and compatible drives Why not create an ATAPI card? One more card to ﬁll your slots I don’t have the skillset File System Translators in ﬁrmware? Mt KFest 2009 - 25 July, 2009 © 2009 Ninth Overthrow

Why? Why not write new ﬁrmware for the CFFA? 800 bytes left in the current ﬁrmware No way to do the File System Translating on the 8-Bit Apple II's Last reason: because we can ;) Mt KFest 2009 - 25 July, 2009 © 2009 Ninth Overthrow

Design Started as a PoC and grew Split up and redesigned Designed in Modules Low Level Driver File System Translators User Interface Application Written Entirely in 6502 Assembly Mt KFest 2009 - 25 July, 2009 © 2009 Ninth Overthrow

Design Designed following standards American National Project Standards ATA/ATAPI-7 V1 Working Draft Rev. 4a 31/03/04 - AT Attachment With Packet Interface - 7 Filesystems are all based on their respective standards Mt KFest 2009 - 25 July, 2009 © 2009 Ninth Overthrow

Packet Command - Read Byte 7 6 5 4 3 2 1 0 0 Operation Code (0x28) 1 reserved reserved 2 3 Logical Block Address 4 5 6 reserved 7 Transfer length 8 9 reserved 10 reserved 11 reserved Mt KFest 2009 - 25 July, 2009 © 2009 Ninth Overthrow

Current Functionality Works with Rich Dreher’s CFFA card in any slot Plays Audio CD's (via speaker jack) Reads CD-ROM and DVD-ROM Discs Reads ISO9660 and Joliet Discs (Single Session Only) Reads HFS Formatted Discs with Single or Multiple Partitions Mt KFest 2009 - 25 July, 2009 © 2009 Ninth Overthrow

Current Functionality Copies from disc to a ProDOS Volume Copies single ﬁles or whole directories with auto- renaming of ﬁles Creates Disks from 8-Bit Emulator Disk Images (.PO or .DO Format) Tested on ][+ (Europlus), ][e, //e Platinum, ROM01 and ROM03 IIGS Mt KFest 2009 - 25 July, 2009 © 2009 Ninth Overthrow

Limitations Cannot use ATAPI + IDE or ATAPI + CF concurrently Drive must be slave (hardcoded at this point) Multiple CFFA searching not supported (uses ﬁrst found) No support for straight UDF (Universal Disc Format) without ISO9660 compatibility Not all drives work Limited debugging and error handling Mt KFest 2009 - 25 July, 2009 © 2009 Ninth Overthrow

Future Plans More usable GUI style interface UDF support IDE Zip / Floptical Drives VFAT support Dual Layer DVDs (may work already, untested) BlueRay? Mt KFest 2009 - 25 July, 2009 © 2009 Ninth Overthrow

TRON - Mt KFest 2009

by aft3rmath on Aug 11, 2009

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TRON - Mt KFest 2009 — Presentation Transcript