Monitor for iSBC 8024

From: ajp166 <ajp166_at_bellatlantic.net>
Date: Sat Oct 28 21:10:11 2000

From: Richard Erlacher <richard_at_idcomm.com>


>I have the original manual, and it has no hint of a monitor, aside from
one
>they sold as a separate product. I'm planning to use the monitor to
test
>the various boards I have.


Then you dont have the software manual. My memory of the board was
three books a users manual, one on the hardware, and the software manual.
I know as I loaned out the software manual for my 80/10 years ago and
never saw it again.

>According to the Intel doc's, the 8010,8020, and 8024 boards all used
the
>same hardware addresses, as did the monitors they sold for them. That
will
>serve me well, as I intend to use a script running on a terminal
emulator on
>the PC in order to verify proper operation of the various features on
the
>board.


As long as you know the addresses and setup for the ports and all
it's pretty simple.

>while the 8024 has an 8085. It was not a very nice piece of work, so
I'm
>hopeful I can find something a bit more up to date. The Intel monitor
was
>delivered to the customer who paid for it back in the '70's, and I
haven't
>seen one since. I'm just not interested in writing a monitor just for
the


They never changed it much save for a bug fix or two through the early
80s.

use the monitor for the SBCs either the 8080 or 8085. Intel had the same
basic one they used all over the place.

>Does anybody know the Hi-Tech 'C' compiler for CP/M well enough to know
>whether it produces 8080 code?

It does, its a compiler switch. Crummy code though.

>half-a-dozen 'C' compilers for CP/M, any one of which should produce
8080
>code, but AFAIK the Hi-tech (Pacific) compiler is the only one that also
has
>a version for several other CPU's as well, so it would be worth using
just
>for the exercise. I could justify writing an original monitor in a 'C'
>dialect portable to several MCU's, but not just one. I might as well
do
>that in assembler.


It's your pain. I dream in 8080/85/z80 so its no big deal to write a 1k
monitor. It's likely easier now as I have a basic monitor on hand that
ive used for years and could be tweeked for that.

Of course any of the published monitors for 8080 like the LLL AMS80
(KILOBAUD) monitor will do as well. If you have Burskys book
The S100 bus handbook there is a copy of Vector Ones monitor in
there.

A monitor for a a ISBC80xx or BLC80xx is a rather basic thing and
should easily fit in a 2716 (I've done nice ones for 2708!).

>Aztec, BDS, Whitesmith, among others, are all history. <sigh> Maybe the
>"small-C" (Hendrix) could be used, since I can write my own code
generator.
>I'd rather skip that step though.


small-C _IS 8080_! that was the original version, it was later that z80
code
generator was created.

Allison
Received on Sat Oct 28 2000 - 21:10:11 BST