Msg: 3472 *Conference*

11-30-92 17:14:11

From: GARY WEBER

To : FRANK PERRICONE

Subj: REPLY TO MSG #3471 (FDD2 AND KYOTRONIC 85)

Frank -
 
Indeed, the KYO 85 and the Tandy Model 100 are very close.  But you  are
incorrect in one of your assumptions:  It's memory addresses are  NOT the same
as the Model 100.  They are close, but not the same. 
 
The reason you are experiencing the lockup most likely has to do with  the
machine language that is being executed with the CALL statement.   Various
things could be going wrong, it could be looking at high  memory addresses
which are different in the Tandy Model 100 and the  KYO-85, or it could be
making a call to a ROM routine which also are  slightly different in both
machines. 
 
It certainly is possible that the file manager loader could be  modified to
work with the KYO-85 so that FLOPPY.CO could be loaded  into memory, but then
you'd have an even worse problem:  FLOPPY.CO,  being a machine language
program, is using even *more* RAM & ROM  addresses that are proprietary to the
Model 100.  Bottom line:  The  software which ships with the Tandy PDD & PDD2
is incompatible with  the KYO-85. 
 
Does that mean all hope is lost?  Certainly not!  There is another  program
which was first written for the Model 100 called Disk Manager.   It can talk to
both the Tandy PDD1 and PDD2, although on the PDD2 it  can't read or write to
the second file bank, so it can only store up  to 40 files no matter which one
you are using.  But, if I'm not  mistaken, you can still store up to 200K of
information on the disk  (not just 100K).  Functionally, it is apparantly
superior to  FLOPPY.CO.  Anyways, someone created a special version of
DSKMGR.CO  specifically for the KYO-85. It is available from CompuServe in the
M100SIG forum.  With it, you'll be able to use your Tandy PDD2.  You  don't
happen to have a CompuServe account, do you? 
 
Gary Weber