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- For those who would say that 8-bit CP/M is dead, I present the
- following edited exchange of messages from CompuServe...
-
- --Keith Petersen <W8SDZ@SIMTEL20.ARPA>
-
- ------------------------------------
- Dt: 17-Sep-85 01:49:43
- Sb: A Z-SYSTEM Testimonial
- Fm: Peter O.E. Bekker 74106,1430
- To: All
-
- I have just now emerged from 10 grueling hours worth of eye-crossing
- (glossing) installation work - but am proud to report the SUCCESSFUL
- implementation of ZCPR3 and Echelon's ZRDOS on a Kaypro 4-84. In
- short, a fully functional Z-SYSTEM.
-
- Without qualification I can say the Z-SYSTEM is a MAJOR boon to 8-bit
- computing.
-
- Rick Conn, Joe Wright and the folks at ECHELON are quite definately
- pioneers who have picked-up the ball from Digital Research and run with
- it...far beyond the goal post. (At first blush this would seem silly -
- who would want to run much past the goal post? That's probably what DRI
- asked itself..lo those many years ago.) Well - had DRI only answered
- its own question with the same kind of vision that made it famous in
- the first place, BIG BLUE and its conspirators might not have muscled
- it out of prominence so quickly and completely .. but I digress.
-
- Initial "interfaces" with the Z-SYSTEM have shown a TREMENDOUS
- improvement over CP/M..most particularly in the areas of "friendliness"
- and functionality. (It's MS/PC-DOS .. for those of us who don't much
- care for the EXPENSE of 16-bit computing.)
-
- While I'd like to babble on & on about Z-SYSTEM - I can't..lest someone
- get the idea I'm enthusiatic about it..or (perish the thought) suspect
- I have an equity interest in the distributor. (Wish I did.)
-
- But to demonstrate my serious intent - I am preparing a comprehensive
- DOC file for installation of Z-SYSTEM on a KAYPRO 4-84 (for my own
- records) and will be more than happy to post it here should anyone
- express even the slightest interest. It's not a breeze by any means
- but, when all is said & done, it is well worth the effort. To
- paraphrase a once obscure music critic named Jon Landau who several
- years ago sat through a Bruce Springsteen performance at a small Boston
- club.. "I have seen the future of 8-bit computing.. and its name is
- Z-SYSTEM."
-
-
- Dt: 17-Sep-85 18:22:54
- Sb: A Z-SYSTEM Testimonial
- Fm: Eldor Gemst 74116,2714
- To: Peter O.E. Bekker 74106,1430 (X)
-
- Is there any HARDWARE installation required with ZRDOS or is it
- strictly software? There must be alot of disk space required just for
- the system files - do you really feel the advantages of the system
- outweigh the disk space required? I can see it on a hard disk system,
- but am less convinced with floppies.
-
-
- Dt: 17-Sep-85 23:29:29
- Sb: A Z-SYSTEM Testimonial
- Fm: Peter O.E. Bekker 74106,1430
- To: Eldor Gemst 74116,2714 (X)
-
- You're right. ZSYSTEM is a MUCH more noticeable boon on hard disks
- than floppies. But there are considerable advantages on the smaller
- drives too.
-
- As for file space..I've enjoyed a GAIN using ZSYSTEM. First of all,
- ZRDOS is a direct BDOS replacement and takes up no more space than a
- machine's stock BDOS (even though it contains several significant BDOS
- enhancements.
-
- Using ZCPR3, I no longer keep PIP or STAT on most disks, saving 14k
- right there. Z3, as you know, has CPY and PROT to do most of the
- things PIP & STAT do. The REQUIRED Z3 files that every disk should
- have are ENV (the environment), LDR (to load the environment..and other
- things) and RCP (the Resident Command Package.) They are 4k, 2k and 2k
- respectively. So you see -by removing PIP & STAT (14k) I've freed-up
- 8k of space per disk since the ZCPR3 residents total only 8k.
-
- No hardware changes of any kind are required. ZSYSTEM is strictly an
- operating system change...but as I mentioned to Charlie, I've just now
- gotten it running and will be reporting back periodically as advantages
- and disadvantages are observed. I must say, though, that throughout
- the installation process, it became clear to me that ZSYSTEM is an
- intriguing and damn clever implementation.
-
-
- Dt: 17-Sep-85 23:27:27
- Sb: A Z-SYSTEM Testimonial
- Fm: Peter O.E. Bekker 74106,1430
- To: Sysop Charlie Strom 76703,602 (X)
-
- The ZRDOS advantages that come immediately to mind are the extended
- function calls you'd heard about. These include calls to set and reset
- a warm boot trap - a call to GET the current DMA.....ZRDOS also
- supports file archiving and wheel protection...You even get a DELETE
- key that works for command line editing since ZRDOS eliminates the
- troublesome ^R function.
-
- The BIG convenience, of course, is AUTO DISK LOGGING (just like MS-DOS)
- no more repetative ^C's each time a disk is changed..just take one out,
- put another one in .. and go. The error messages are a lot friendlier
- (and more informative) too.
-
- ZRDOS directly answers the complaints of those who say CP/M is too
- "unfriendly" to gain wider accpetance. And for programmers, it's a
- dream come true..particularly teamed with ZCPR3.
-
- Haven't benchmarked..not really set up for it. ZRDOS is written in Z80
- so it's got to be a little faster that CP/M..though because of disk
- access slowdowns, probably not noticeably so. But I guess a Ramdisk
- check could be made.
-
- As for the vast CP/M 80 domain of programs..no reason why they can't be
- run under ZRDOS...
-
- But I've just now gotten this running and I'll report periodically to
- the membership on what I find.
-
-
- Dt: 17-Sep-85 23:24:55
- Sb: A Z-SYSTEM Testimonial
- Fm: Peter O.E. Bekker 74106,1430
- To: John Deakin (CA) 74015,1624 (X)
-
- Since ZRDOS is primarily a straight BDOS replacement, I will be
- concentrating [on writing] mostly (and in excruciating detail) on the
- installation of ZCPR3 in the K4-84. Included will be memory locations,
- sizes and uses...cold start patches for the BIOS, a change to lower the
- BDOS, a warm start patch to protect the CPR, step-by-step instruction
- on intstalling ZCPR3's main functions (ie External Path, Wheel Byte,
- Multiple Command Buffer.....in short, all the info I've been UNABLE to
- locate in the many ZCPR3 DOCs I've read.)
-
- I hope to list all this info in such a way that even a total dolt such
- as myself would be able to make sense of it and even get Z-SYSTEM
- running while reading it.
-
- --------------------------------
-
- Peter Bekker's K4ZSYSIN.DQC is now available on most RCP/M systems.