[Coco] disk images in VCC

[Bill Pierce]

Wayne, I've been using Vcc 1.4b since about 1 1/2 years before it's public release and I've never had that problem. I'm not saying you're not having problems or that the problem doesn't exist, just that I've personally not had the problem. So I can't seem to duplicate it. I have had some 40tk DSDD and 80tk DSDD images that wouldn't load into Vcc but found that adding "$12 $02" as the first 2 bytes of the image (if not already there) with a windows hex editor usually fixes the problem. This is "standard" for JVC format disk images (double sided). Some programs, even "os9" (the program, not the OS) that creates the images for the repo does not do this and the repo images will not boot in XRoar until this is done. XRoar will not even load them. Disk images created in Vcc will have these 2 bytes present at the beginning of the image as a default.
On another note though, I have noticed some strange behavour in the dw4 "/N" descriptors after using the "floppy drives" of Vcc 1.4.3b in OS9, but for some reason, with the last NOS9 build, that seems to have disappeared. I think it was a bug in the dw4 driver.

To be honest, if I was not going to use dw4, I wouldn't use vcc 1.4.3b and use vcc 1.4.2 instead. I have both installed on my system just for those occasions. The becker port patch definitely introduced some little "quirks" for sure.
 

Bill Pierce
"Today is a good day... I woke up" - Ritchie Havens
 

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-----Original Message-----
From: Wayne Campbell <asa.rand at gmail.com>
To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
Sent: Sat, May 3, 2014 7:24 pm
Subject: Re: [Coco] disk images in VCC


With Robert Gault's help I was able to ascertain that it is a VCC 1.43b
problem. Version 1.42 accepts the image without a hitch. I am not using
DriveWire in VCC, and have the Becker Port option turned off. Can anyone
venture a guess what the issue is?

Wayne



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