home *** CD-ROM | disk | FTP | other *** search
-
-
- empcd.device 1.4
-
- by Nicola Salmoria MC6489@mclink.it
-
-
-
- This device allows the EMPLANT and ShapeShifter Mac emulations to use a
- CD-ROM drive not connected to the emulation SCSI bus.
- Mac HFS discs are automatically recognized without additional software; to
- read ISO-9660 discs and Photo CDs you need the appropriate drivers in the
- System folder. Audio discs cannot be used.
-
- The device also provides a double buffered prefetch cache which dramatically
- increases performance when playing QuickTime movies directly from a CD-ROM.
-
-
-
- Installation
- ------------
-
- - Copy empcd.device to DEVS:
- - Drag the EMPCD icon into the DEVS:DosDrivers drawer.
- - Now you have to modify EMPCD, selecting the appropriate device and unit.
- Please note that the device name is specified on the Control line, since
- Device is already used by empcd.device. Unfortunately, the Control field
- is not parsed by the Mount command supplied with Workbench 2.x. You have
- to either find a newer version of Mount (v39+) or manually edit
- empcd.device using a hex editor: change "scsi.device" into your device
- name. Of course if your device is really called scsi.device, you don't
- have to change anything. Remember to terminate the name with a 0.
-
- The Buffers field is very important for performance. The default value
- of 25 seems to be the best on my system. Your mileage may vary.
- Don't set it too low, don't set it too high.
-
- If you have a Zorro-2 DMA controller used on a 32-bit addressing machine
- (A3000, A4000, some accelerated A2000 with memory on the CPU card) set
- BufMemType to 513 (which tells the device to use memory in the 24 bit
- addressing range).
-
- - Now reset (or just double click on the EMPCD icon).
-
-
-
- EMPLANT Configuration
- ---------------------
-
- - Click on EMPCD in the left list of the Devices control window, then
- click on the EMPCD which will appear in the right list. Now:
- - If you didn't have to set BufMemType to 513, turn off DMA restrictions.
- - If you are using version 5.0 or later of the EMPLANT emulation software,
- turn on Removable Media. This is needed to make the emulation look for
- disc changes.
- - If you are using an older version of the EMPLANT emulation software, turn
- on Write Protection - it won't be noticed otherwise.
-
-
-
- ShapeShifter Configuration
- --------------------------
-
- Note: you need the registered version of ShapeShifter.
-
- - In the Volumes/Disk... configuration window, click on Choose to create a
- new DeviceDisk. In the ASL requester, write EMPCD: and press return
- (EMPCD: will not appear in the device list of the ASL requester)
-
- To be able to change discs while the emulation is running, you need
- ShapeShifter 3.0g or later. Make sure that Removable is checked.
-
-
-
- Usage
- -----
-
- · Use the CD-ROM drive just like a floppy drive. Drag the CD-ROM icon on the
- trashcan before ejecting a disc. When you insert a new disc, it will be
- detected automatically.
-
- · If you are using a version of EMPLANT older than 5.0, or a version of
- ShapeShifter older than 3.0g, you have to start the emulation with a disc
- in the drive, otherwise the Mac will tell you that the disk is bad, and
- ask you to format it - and you will not be able to use the CD-ROM
- afterwards. On ShapeShifter, you can't change the disc without restarting
- the emulation. On EMPLANT, drag its icon on the trashcan, change the disc,
- wait for the drive to recognize it, and select "Re-Mount Ejected" in the
- Emplant window.
-
-
-
- Frequently Asked Questions
- --------------------------
-
- Q. Does empcd.device support ISO-9660 or audio discs?
- A. Audio discs are not supported. ISO-9660 discs and Photo CDs can be read
- but you must have the appropriate drivers on the Mac side.
-
- Q. Can you add support for audio discs?
- A. No. To play an audio disc you have to send SCSI commands to the drive.
- This can't be done with empcd.device because the emulation sees the disc
- as an hard disk.
-
-
-
- Troubleshooting
- ---------------
-
- Remember that empcd.device is NOT a product of Utilities Unlimited, Inc.
- It is an add-on written by me, Nicola Salmoria, and all comments should be
- sent to me.
-
- Problem: When I boot the Emulation with a CD-ROM in the drive, a requester
- asking me if I want to initialize the disk appears, and the disc icon
- doesn't appear.
- Possible Cause: The CD-ROM is not a Mac HFS disc. Only HFS discs can be used
- with empcd.device without additional software. To read ISO-9660 discs or
- Photo CDs you need the appropriate drivers on the Mac side.
-
- Problem: When I boot the Emulation with a CD-ROM in the drive, an Amiga
- requester appears, saying that the device couldn't be opened.
- Possible cause: You probably haven't set up correctly the name and unit of
- the device in the EMPCD mountlist. Remember that the name of the device
- controlling the CD-ROM must be put on the "Control" line. Also remember
- that if you are using a Workbench version < 3.0 and the device name is not
- "scsi.device" you must use a hex editor to modify empcd.device directly.
-
- Problem: The CD-ROM icon appears and I am able to open it, but some of my
- discs don't work as expected.
- Possible cause: empcd.device doesn't emulate the SCSI interface. Programs
- sending SCSI commands or relying on other CD-ROM peculiarities will not
- work. If you can, try the disc using a SCSI drive on the emulation SCSI
- bus. If it works that way, it is probably not compatible with
- empcd.device. If it doesn't work even when used via the SCSI port, it
- could be a problem with your system configuration. Try the usual things,
- like disabling INITs, running the emulation in 24-bit mode, and so on.
-
-
-
- History
- -------
-
- 1.1 [empcd.device 38.7 (18.10.94)]
-
- - Fixed a bug which caused some controllers (like the A3000 scsi.device) not
- to work.
- - Now pops up an error requester if the underlying device couldn't be
- opened.
- - Enhanced the documentation
-
- 1.2 [empcd.device 38.9 (19.11.94)]
-
- - Works with version 5.0 of the EMPLANT emulation software. Thanks to the
- clever work of Jim Drew, now disk insertion is properly detected.
- If the CD-ROM is not in HFS format, it will be ignored - no annoying "do you
- want to initialize it?" requester.
-
- 1.3 [empcd.device 38.11 (24.12.94)]
-
- - Removed the code to ignore dics not in HFS format, because now ISO-9660
- discs are recognized! This has nothing to do with me - I didn't change
- anything. Must be a cool feature of EMPLANT 5.0.
- IMPORTANT NOTE: you need the proper Extensions on the Mac side to read
- ISO-9660 and PhotoCDs. "ISO 9660 File Access" and the like.
- - Now uses a quad-longword aligned buffer. This could increase speed on
- some systems.
-
- 1.4 [empcd.device 38.13 (2.8.95)]
-
- - Added support for ShapeShifter.
-
-
-
- Legal Issues
- ------------
-
- This software is FreeWare. It is freely distributable as long as the archive
- remains intact, and only a nominal fee is charged for its distribution.
-
- This software is provided "AS IS" without warranty of any kind, either
- expressed or implied. By using it, you agree to accept the entire risk as to
- the quality and performance of the program.
-
-
- EMPLANT is a trademark of Jim Drew & Utilities Unlimited, Inc.
-
- ShapeShifter is © Copyright 1993-1995 Christian Bauer.
-
- Apple and Macintosh are registered trademarks and QuickTime is a trademark
- of Apple Computer, Inc.
-