Re: [M100] Hello, and REX question

[Dan Higdon]

If I get anything working, I will definitely be bragging about it here. :)

A sequencer feels like it's going to need some assembly language for the
timer callback. I'm passably comfortable with 8080 assembly language, but
I'm still working out the development toolchain. BYTEIT.BA is a great
little assembler, but it's SO slow. To date, I've only put together a BASIC
callable routine that will uppercase or lowercase a string in-place.

I suspect I'll need to resort to cross-platform tools and VirtualT for any
more serious coding.

 On Fri, 10 May 2019 22:49:22 -0400 Michael Brant 
wrote:

> Very curious about your synth project.  When you get it going, an update
> would be great
>

Re: [M100] tpdd1 util disk

[you got me]

well, if you need any images, these are the ones I have. You will need to use 
the PDD program to make disks.

https://1drv.ms/u/s!AgRHXuUu57CegiLFKHbqZljy7En6


https://1drv.ms/u/s!AgRHXuUu57CegiRK7aYkxio3Y27B

https://1drv.ms/u/s!AgRHXuUu57CegiPDbZQoLAqeydIM


From: M100  on behalf of Brian White 

Sent: Thursday, May 9, 2019 12:37 AM
To: m...@bitchin100.com
Subject: Re: [M100] tpdd1 util disk

That tpdd1 disk arrived today and it looks good. I was able to bootstrap from 
it, and then use it's backup util to clone it, and then hard reset and 
bootstrap from the copy, and make another copy from that.

Thanks again for the offer.

On Sat, May 4, 2019, 6:19 AM Brian White 
mailto:bw.al...@gmail.com>> wrote:
Thank you. As it happens just this week someone on facebook sent me a copy of a 
tpdd1 disk. It hasn't arrived yet, so I don't know if it's actually a good copy 
yet, but I assume it will be fine.

So I am probably set. With that I should be able to proceed with trying to 
devise a way to take an image and then re-create a disk from the image, that 
doesn't require anything more special than the drive itself.

If it's convenient and your m100 and tpdd1 aren't packed away in storage I may 
ask you to coroborate what I see just to verify that the disk I got looks the 
same as yours before I go assuming it's a good reference to work from and 
redistribute. But only if it's not a project, because realistically, if the 
disk I get boots and does IPL, then it must have been made by the backup 
program and is probably a proper copy.

Thank you again.

--
bkw

On Sat, May 4, 2019, 1:06 AM you got me 
mailto:ven...@hotmail.com>> wrote:
Brian K. White
do you still need help on this subject?

"image of a TPDD1 utility disk"
if so, contact me offline
ven...@hotmail.com

From: M100 
mailto:m100-boun...@lists.bitchin100.com>> 
on behalf of Brian K. White mailto:bw.al...@gmail.com>>
Sent: Wednesday, April 17, 2019 6:08 AM
To: m...@bitchin100.com
Subject: [M100] tpdd1 util disk

Has anyone ever taken an image of a tpdd1 util disk?
(using the drive itself I mean, not using something like kryoflux)

I have found floppy.co for tpdd1, and the full disk image for 
tpdd2, but
not a disk image for tpdd1.

I want to try taking a stab at coming up with some recipe to generate a
disk from scratch. I have a tpdd1 but no original disk.

I figure, if the image existed, I should be able write that image back
to a disk using stuff that's actually already available now, and merely
it just requires documenting the steps.
It might be a bunch of steps, and tedious, but possible is infinitely
better than not-possible, and tedious doesn't matter until after it's
even possible at all.

The M100SIG includes utils that claim to be able to do sector access and
low level hacking/editing on tpdd1, as long as powr-dos is installed,
and also includes powr-dos, and so it may just be a matter of working
out the steps to go from scratch, like to get powr-dos installed using
any number of ways, break up the image into smaller chunks that fit in
ram, etc. Or maybe you can do it by just formatting and writing a couple
files and doctoring the directory table a certain way etc, without
actually copying 100k.

Writing a pc util that just talks to the tpdd directly is another
approach, but that is inventing something new, which may or may not work
or be trivial.

What I'm aiming for is, I think all the pieces already exist and just
need to be strung together.

Maybe this would make it easy to make a new simpler pc util by just
recording whatever powr-dos does.

--
bkw