[Coco] CoCo memory map

[Stephen Pereira]

Robert and Barry, thank you very much for your responses.  You are not quite getting what I’m trying to ask.  Sorry for not being able to explain myself properly.

My remote I/O code hooks into the CONSOLE input and CONSOLE output ROM routines, in order to provide keyboard input from and screen output to a remote terminal, along with the CoCo keyboard and screen.  This code can run at $7800 if I’m using DECB.  It also can run at $1800 if I am using Color Forth.

I would like to use this remote I/O code along with EDTASM, so I can clearly read the 80 character lines on a remote terminal.

Where in memory can I place this code (about 300 bytes) while using EDTASM, without having EDTASM clobber my code, or having my code clobber EDTASM?

Thanks very much for listening!

smp
- - -
Stephen Pereira
Bedford, NH  03110
KB1SXE


> On Apr 7, 2019, at 10:23 AM, Barry Nelson <barry.nelson at amobiledevice.com> wrote:
> 
> This may help if you don’t have it…
> 
> https://www.lomont.org/Software/Misc/CoCo/Lomont_CoCoHardware.pdf <https://www.lomont.org/Software/Misc/CoCo/Lomont_CoCoHardware.pdf>
> 
> 
>> Message: 5
>> Date: Sat, 6 Apr 2019 17:00:22 -0400
>> From: Stephen Pereira <stephen.m.pereira.sr at gmail.com <mailto:stephen.m.pereira.sr at gmail.com>>
>> To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com <mailto:coco at maltedmedia.com>>
>> Subject: [Coco] EDTASM Memory Map?
>> Message-ID: <297A0BD0-C691-4B81-8944-57A1523D813F at gmail.com <mailto:297A0BD0-C691-4B81-8944-57A1523D813F at gmail.com>>
>> Content-Type: text/plain;	charset=us-ascii
>> 
>> Hello all,
>> 
>> I use EDTASM, specifically the disk version modified by Robert Gault called EDTASM6309.
>> 
>> Does anyone know where I might find a memory map about how Disk EDTASM and ZBUG utilize CoCo memory?  I am looking for about 300 bytes of memory where I can load my remote I/O code  without harming EDTASM, and without EDTASM clobbering my remote I/O code.
>> 
>> Thanks!
>> 
>> smp
>> - - -
>> Stephen Pereira
>> Bedford, NH  03110
>> KB1SXE
>