[Coco] Electronic Book software

[Bob Devries]

I have transferred the files of the 4 titles I have, and there are certainly 
some problems:

Each of them uses a title screen binary file which loads at $0400 (start of 
screen ram), but continues past the end of the screen. This extra code is a 
machine language subroutine of some kind. This code would need to be moved 
to $0E00 for disk operation, and the BASIC programme woul need to be 
modified to suit. The subroutine appears to be in position independant code, 
so re-location is possible, however, separating it from the title screen 
data is not so easy. Since the code is short, it would be easier to re-write 
it so that the file has two ORGs. I'll look into that.

Besides that, the programme called "Word Wizard" uses data files on the 
tape. This in itself is no big deal, just requiring the BASIC programme to 
be altered from #-1 to #1, however, the data files all have blank (null 
string) names, which of course, needs to be amended to work with disk. This 
would mean a rather larger modification to the BASIC code. Not impossible, 
but not simple either.


--
Regards, Bob Devries, Dalby, Queensland, Australia

Isaiah 50:4 The sovereign Lord has given me
the capacity to be his spokesman,
so that I know how to help the weary.

website: http://www.home.gil.com.au/~bdevasl
my blog: http://bdevries.invigorated.org/

----- Original Message ----- 
From: "James Hrubik" <jimhrubik at earthlink.net>
To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
Sent: Sunday, July 01, 2007 3:34 AM
Subject: Re: [Coco] Electronic Book software


> Wow!  I didn't know those other titles existed.  All I have is Maze 
> Master (came with the book).  Can these be transferred to disk  without 
> any tweaking of the code?
>
> On Jun 30, 2007, at 1:17 PM, Steve Ostrom wrote:
>
>> Bob, in addition to your list, here are the other titles I have.   There 
>> may have been at least one more because I notice a  conspicuous gap at 
>> 26-2545, but I don't know what that one might  be.  I have only backed up 
>> Solar Explorer on my Cloud 9 Coco3  harddrive, so I don't know if the 
>> others can be backed up, or if I  have not taken the time to do so.
>>
>> -- Steve --
>>
>>
>> Earthquake (Cat#26-7345)
>> Solar Explorer (Cat#26-2546)
>> Village Of Spellwell (Cat#26-7340)
>> Well Of Knowledge (Cat#26-7348)
>>
>> ----- Original Message ----- From: "Bob Devries"  <devries.bob at gmail.com>
>> To: <coco at maltedmedia.com>
>> Sent: Wednesday, June 27, 2007 2:22 AM
>> Subject: [Coco] Electronic Book software
>>
>>
>>> I'm currently "preserving" some software that was designed to go  with 
>>> Tandy's Electronic Book (a device which plugged into the  joystick 
>>> port).
>>>
>>> I have currently:
>>> Maze Master (Cat#26-2541)
>>> Shape Maker (Cat#26-2542)
>>> The Number Factory (Cat#26-2543)
>>> Word Wizard (Cat#26-2544)
>>>
>>> Does anyone know if there were any more?
>>> These 4 are cassette based software, with files that need to be 
>>> relocated for Disk use :(
>>>
>>> --
>>> Regards, Bob Devries, Dalby, Queensland, Australia
>
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