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Topic 28        Sat Sep 27, 1986
W.SMITH [Grandizer]          at 16:04 EDT
Sub: CP/M modules                           

I need help on the use of a cp/m module and the software with it. Any 
suggestions
               William Sint
               Grandizer
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Category 11,  Topic 28
Message 1         Sat Sep 27, 1986
MICHAEL.M                    at 17:53 EDT

William -  What exactly do you mean by 'CP/M Module'?  And which
computer are you using? A C-64 or a C-128?

If you are just getting started in CP/M on the C128, you might
want to download and read the CP/M Primer articles that have
been a part of the StarBoard Journal here in the FlagShip
software libraries.  The file numbers are #1703 and #2146.

Other sources of CP/M information can be found in the CP/M
Roundtable at page 685 here on GEnie, where we have our own
software library and bulletin board area dealing with the C-128.
There are alot of knowledgeable folks there that are more than
willing to answer any questions you might have.

If you're looking for paperback publications to help you get
started in CP/M, I can recommend two good books:
CP/M Users Guide - by ABACUS
The CP/M Plus Handbook - by Alan R. Miller

And, of course, you can always just post a message here in this
category stating what you'd like to know!  We're always glad
to help!

-Mike
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Category 11,  Topic 28
Message 3         Sun Sep 28, 1986
W.SMITH [Grandizer]          at 16:09 EDT

Sorry for being so blunt but I have a C-64 with a CP/M module ( I got it cheap) 
and i am having trouble getting the 
disk to boot and I could use all the help I can getyt.    
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Category 11,  Topic 28
Message 4         Sun Sep 28, 1986
WHIRT [WDHIRT]               at 20:36 CDT

Bad news maybe for the 64 and CP/M Cart. Unless you have an ancient
64 (older than about 2 1/2 years), the probability of the CP/M
cart working on the 64 is less than 50/50. That's why the CP/M
cart is no longer sold and all remaining carts were supposedly
recalled by Commodore. A change was made in the 64 circuitry with
64 revison 5 I think that no longer insured compatibility with the
CP/M. Rev 5 64's have been mfgd since around spring 84 if my
memory serves me right.
                                           Bill
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Category 11,  Topic 28
Message 5         Wed Oct 01, 1986
W.SMITH [Grandizer]          at 21:14 EDT

Could you pleasse tell me about the changes as I am somewhat of a hardware nut 
nad
              WBS
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Category 11,  Topic 28
Message 6         Thu Oct 02, 1986
DEB [*deb!*]                 at 04:31 EDT

The changes?!?   <>
  
    It was just a *small* thing, they relaxed the timing specs of the 
VIC chip ... and that was all it took.
  
       Its *RIP* for that CP/M cart!   Commodore Customer Support line
may have some info for you about all this, BUT, even inthe best of
situations, the CP/M on the 64 was not compatible with much of anything,
PD, commercial or whatever.
  
     Running around here somewhere are some of the pioneers of the C-64
CP/M cartridge like Chris Lampton  and Frank Prindle
...in fact, they may be reading this.  <>
  
     What were the problems with the C-64 CP/M?  Well, besides a not-quite
standard CP/M version, 40 columns and a Commodore formatted disk, there was
also the matter of processor switching on the serial bus, and other little
niceties.
  
        *deb!*
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Category 11,  Topic 28
Message 7         Sat Oct 04, 1986
WHIRT [WDHIRT]               at 20:08 CDT

It was great for messing around with. Chris Lampton wrote a dandy
80 column program using the hi-res mode of the 64 which was very
usable with a green screen monitor. I tell you though that you
really had to want to putz around with it because working with
1541 was agonizing slow. There was also the great CBM error of
writing the BIOS so only 1 1541 drive would work in CP/M mode 
(Fortunately, a pd patch was created to solve the problem). Unless
you have an old 64 and access to IEEE drives, forget about CP/M
on the 64 and go to the 128. The implementation on the 128 is
a 1000 times better.
                                       Bill
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Category 11,  Topic 28
Message 8         Sun Oct 05, 1986
DEB [*deb!*]                 at 01:24 EDT

Bill....hahaha, I had forgotten all about the 1 drive situation!  Yes,
I remember the days....
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Category 11,  Topic 28
Message 9         Sat Oct 11, 1986
W.SMITH [Grandizer]          at 00:09 EDT

Ok, I guess I have a expansion port card and a z-80 ti o play with!
Thanks for all the help....

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