[Coco] Rainbow cassettes

[Robert Gault]

I have a disk version with a Cat. No. 1200 which seems to be a Datasoft 
Inc. number rather than a Tandy product number. The instructions 
indicate that both a tape and disk version were issued for the Coco1 
32K, and TDP-100 32K (Coco2 I think).

The tape is double sided and you may have a better recording on the side 
other than the one you used.

My guess is that if you are trying to use the cassette version on a disk 
system, the program is loading at $600 and trashing the disk OS. Short 
of patching the program, you will need to offset load the tape before 
saving it to disk. You will then need a small program to relocate the 
program after loading it from disk and before starting it.

However, there may be a better solution since the program was written by 
Steve Bjork who may still be reachable. If you can get an email to him, 
he may be able to send you a patch or instructions for running the tape 
version on a disk system.

If you follow the previously posted information for finding the start, 
end, and exec addresses for a tape ml program and post them, I think I 
can post specific instructions for making the program run on a disk system.

Glen VanDenBiggelaar wrote:
> 
> Ok,
> I just tried Zaxxon, (The offical "RS' tape) and it doesn't work (maybe 
> because i am using a CoCo 2-64K?). It tries, but not quite.
> I am working next on "Pooyan", "The King" etc. I will let you know how 
> that works
> -Glen
> 
>>
>> That was just discussed here. If the program is a Basic program, do a 
>> CLOAD"filename" and then a SAVE"filename". If the program is machine 
>> language, you can try
>> 10 CLOADM"filename"
>> 20 EX=PEEK(&H9D)*256+PEEK(&H9E):EN=PEEK(&H7E)*256+PEEK(&H7F)-1
>>    :ST=PEEK(&H1E7)*256+PEEK(&H1E8)
>> 30 SAVEM"filename",ST,EN,EX
>>
>> Don't expect all cassette based programs to work on a disk based 
>> system. The machine language program may try to load at $600 and trash 
>> the disk OS. The Basic program may expect more RAM than is present in 
>> a disk system and not run.
>>
>> You will need to experiment. Offset loading of ml programs may be 
>> required with subsequent memory shifting. Editing of Basic programs 
>> may be required.
>>
>> John T Chasteen wrote:
>>
>>> How do I transfer the cassette programs and files to a diskette?
>>>
>>> I have been away from the coco 3 for about 25 years so please keep it
>>> simple and detailed.
>>>
>>> Thanks in advance
>>>
>>> John Chasteen
>>>
>>
>> -- 
>> Coco mailing list
>> Coco at maltedmedia.com
>> http://five.pairlist.net/mailman/listinfo/coco
> 
> 
> 
>