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EnigmA Amiga Run 1997 April
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EnigmA AMIGA RUN 17 (1997)(G.R. Edizioni)(IT)[!][issue 1997-04][EAR-CD].iso
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ATAPI.news
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1996-06-17
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42 lines
- Oliver Kastl of Elaborate Bytes has now released a4000_atapi.device
version 8.2. This device allows you to use an ATAPI CD-ROM drive with
the A4000 or A4000T embedded IDE controller. A4000 users can use the very
popular and cheap CD-Roms for PCs without any major disadvantages against
SCSI CD-Rom drives. The major advantage for A4000 users without a SCSI
controller is, that they don't have to buy one. The major advantage for
A4000 users with a SCSI controller is, that they have an unused IDE port
in their machine anyway and SCSI CD-Roms are usually more expensive.
The device maps SCSI-II commands to ATAPI packets using the standard
Commodore HD_SCSICMD interface, so any "CD-Rom specific" programs
(Multisession Filsystems, Audio Players and Photo-CD readers) designed
for SCSI-II CD-Roms should work.
This has been tested with CacheCDFS, PlayCD, CD32-Emulator and PhotoWorX.
The device is fully interrupt driven and will use only a small amount of
CPU time for the transfer. A demo version is uploaded to AmiNet.
The new version 8.2 features:
- Intermediate fixes - mainly to the Chinon OEM version
- Revised to fully comply with ATAPI 1.2 specs. All ATAPI devices which
comply with Atapi 1.2 should work, including non CD-Roms (e.g. Tape
devices). Removed Elitegroup Vertos from compatibility list - this
one doesn't comply with ATAPI specs 1.2.
- Merged a4000_atapi and a1200_atapi to a single atapi.device Checking,
which devices are connected to the IDE port changed again -this should
fix the reported problems of "FindCD" hangs.
- Mitsumi FX-300 and old FX-400 apparently hangs. This is a bug in the
Mitsumi firmware. Added a workaround for this. CD-Rom can be reset on
Open, if the device is opened with device flags 1.
- Emulates SCSI 6 byte Mode Sense / Mode Select. This is important for
some SCSI Audio players and Shapeshifter to work properly.
Elaborate Bytes (Oliver Kastl)
Am Westpark 5
81373 Munich
Germany
EMail: 100447.3361@compuserve.com
Hirsch & Wolf OHG
Mittelstr. 33
56564 Neuwied
Germany