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- Date: Monday, 3 June 1985
- From: Rick Thomas
- Re: Wordstar/Appli-Card offer query
-
- The time has come for me to summarize what I have learned about the
- PCPI Applicard for all you folks out there who have helped me in my
- search for information.
-
- First -- The manuals that come with the Starcard (The name for the
- Applicard when it is bundled with Wordstar.) are full of typos and
- not exceedingly detailed. If you can read around the typos, they are
- reasonably good cook-books for getting CPM and Wordstar up and
- running, but they will not make a CPM hacker out of you. I have not
- heard that PCPI's own manuals are any better. All is not completely
- lost though, because there is a friendly person at the end of a PCPI
- technical hot-line who can send you xerox copies of various napkins
- (and such) on on which the software/hardware developers have scribbled
- down the real poop. In addition, there is an 'OEM Package' that PCPI
- will sell you for 50 bucks which consists of a double-sided disk full
- of software and about 35 pages of badly xeroxed notes. The above
- mentioned napkins are in addition to these notes, and necessary for a
- real understanding of what is going on. If you have looked at all of
- the above and are still curious about what is going on, you can offer
- to sign a non-disclosure agreement, and they may consent to send you
- the source code for the various drivers. Then again, they may not. I
- haven't gotten my copy of the non-disclosure agreement yet, so I don't
- know how stringent it is, or what happens after you sign it and send
- it back to them.
-
- Second -- It runs CPM2.2 just great. I have Turbo Pascal for CPM/80
- running on it and am much impressed with the speed and convenience of
- the package. The 6MHZ Z80B processor is *FAST*. On the other hand,
- since the Z80 and the 6502 do not share any memory, (The Z80 has its
- own 64K of fast DRAM. You can buy a piggy-back card that will expand
- it to about a half-Meg) the communication between the two cpu's is
- restricted to a single one-byte-wide I/O port and a couple of flag
- bits. Even with a dedicated server running on the 6502, this means
- that the Z80 can't write on the Apple's 80col screen at higher than a
- few hundred characters/second. (Disk accesses are significantly
- faster, because they use block-mode transfers in which the Z80 tells
- the 6502 how many characters to expect then sends them all in a burst.
- Character devices like the 80col screen are restricted to a single
- byte at a time, so the overhead is much higher.) Since the
- nitty-gritty I/O is all handled by the 6502 side, the BIOS on the Z80
- side can afford to be very small. This leads to a remarkably large
- 57K Transient Program Area. You can run larger programs on it than
- you can on the Microsoft card. (Further comments on differences
- between this card and the Microsoft card later.)
-
- Third -- The terminal emulator that runs on the 6502 side and
- manipulates the Apple 80col screen is excessively dumb. It seems to
- lack character/line insert/delete sequences. If anybody knows
- differently, please speak up. It hurts to watch the screen get
- repainted just to insert a line at the top. I sincerely hope that
- this is just a misfeature of the Turbo Pascal editor, which I
- otherwise like very much.
-
- Fourth -- it is *not* compatible with the Microsoft CPM card. It will
- not run anything that assumes hardware features of that card.
- However, it *will* run just about any generic CPM program, of which
- there are a multitude! The price you pay for the blazingly fast CPU
- is incompatibility with the 'standard' Microsoft card. The worst part
- of this is that it will not run the drivers that give you access to
- the Profile hard disk from CPM. (Does anybody know if the Sider has a
- driver that runs on the Applicard?) The person on the hot-line hinted
- that PCPI would sell you a driver written by someone in Australia that
- gave the Applicard access to a Profile, but he didn't make it sound
- like it was compatible with much. In particular, I think he said that
- if you used that driver, you couldn't use your Profile with Prodos.
- He didn't know for sure, but I expect that there is no provision for
- partitioning the disk. I asked about software from third-party
- sources, but (while he said they did keep a registry of such) he
- couldn't point me at anybody who could help me with my specific
- problems. Which brings me to --
-
- Fifth -- They supply a driver that runs under DOS3.3 and turns the
- Applicard into a ramdisk, with up to a half meg of memory if you buy
- the piggyback cards (300 bucks for 256K -- a trifle expensive for
- today's market -- maybe mailorder places have them cheaper.) However,
- they do not supply a corresponding driver for Prodos. I assume that
- the Prodos driver would be a snap, given the code for the DOS3.3
- driver, but nobody at PCPI has seen fit to do it yet. Sounds like a
- market for a 3rd party in there somewhere! I have used the DOS3.3
- driver, it works very well.
-
- Sixth and finally -- They supply a printer driver that uses the
- left-over 6502-side ram (including the Alternate bank on the 80-column
- card, if one exists) as a printer buffer (up to 80K in my
- configuration, IIe with extended 80 Column color card.) But it seems
- to me that a much better use for that memory would be as a ramdisk for
- CPM (with maybe a 16K buffer reserved for the printer driver.) The
- tech-support hot-line person did not know of any such driver -- sounds
- like another 3rd party opportunity!
-
-
- >
- > I recently received an advertisement from Broadreach
- > for Wordstar and the Appli-Card CP/M card for $164.95.
-
- This is a very good price!
-
- > It lists features of the Appli-Card, but doesn't specify
- > whether all the software and manuals necessary to use
- > the features are included in the package.
-
- If this is the Micropro Starcard package, they are included, but see
- above. The manuals are not very detailed.
-
- > If anyone has experience with the Appli-Card, or this offer,
- > please send me your opinion.
- >
- > In particular, does the 6Mhz Appli-card run all CP/M software?
- > Are preboots needed?
-
- Runs everything I have come across, but I have not experimented
- widely. Also, see above regarding Microsoft compatibility.
-
- > Is the manual sufficient to learn CP/M?
-
- No. Go buy a good book. Don't count on the manuals.
-
- > Are there needed utilities that are not included with Appli-Card?
-
- Everything you need to configure it and get CPM up and running is
- included. There is the DRI assembler and editor and DDT (and PIP and
- stat, and so on) but no 'higher level' languages. I recommend buying
- Turbo Pascal.
-
- > The ad says the 64K ram on the card can be used as
- > RAM/Disk for DOS3.3. Has anyone used the Applicard in
- > this way?
-
- Yes, see above.
-
- >
- > Thanks,
- >
- > David Lazar
- > ihuxk!dcl55611
-
-
- Rick Thomas
- {ihnp4,akgua,sdcsvax,just about anywhere}!attunix!rbt
- (201)-522-6062
-