[Coco] Lester Hands Lyra Author

[lhands at peak.org]

> On Saturday 18 August 2012 20:05:58 lhands at peak.org did opine:
>
>> Bill, I'll look forward to what you have done. Self-modifying code
>> should be a challenge to figure out, but that will make it the more
>> interesting!
>>
>> > Lester Hands.. I have disassembled the ML part of BW2 and have a
>> > pretty good source built. There is a couple of spots I'm unsure of.
>> > The code is self-modifying in it's "pre-play" loop to modify the
>> > values in the actual play loop. I've been messing with trying to put
>> > these values in variables instead so that the code doesn't modify
>> > itself and also make it easier to change values on the fly. Also,
>> > there are variables that are "poked" in by basic and I've been
>> > working on isolating them to variables in the ML code. I can send you
>> > the sources that I have and you may be able to do more than I as you
>> > worked with this type of code more than I have. It's a lot like the
>> > various Musica players that were made back then with the additions
>> > for the EQ code. I'll send you the original disassembled source as
>> > well as the one I've been modifying. I also typed in a text version
>> > of the article from Rainbow so it's easily searched for info. There's
>> > a memory map and variable table as well.
>> >
>> > Music from the Tandy/Radio Shack Color Computer 2 & 3
>> > https://sites.google.com/site/dabarnstudio/
>> > Bill Pierce
>> > ooogalapasooo at aol.com
>> >
>> >
>> >
>> >
>> > -----Original Message-----
>> > From: lhands <lhands at peak.org>
>> > To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
>> > Sent: Sat, Aug 18, 2012 12:28 am
>> > Subject: Re: [Coco] Lester Hands Lyra Author
>> >
>> >
>> > Hi guys. You've given me a good idea for my first project. It has been
>> > 20 years since I did anything with the CoCo and I am amazed to find a
>> > lot of on-going development for it! My first effort for the CoCo was
>> > Musica. I'm going to see what I can do to enhance it. Bill, have you
>> > already figured out how BW2 works?
>> >
>> >> Allen, I am actually working on trying to get my "Sound Chaser"
>> >> player to
>> >> use the Bells & Whistles engine on Musica files. Musica already used
>> >> multiple waveforms, so all that is needed is to add the EQ section.
>> >> The problem is that the BW2 code does a lot of self-modifying and I
>> >> have to separate that out to variables then it should work. I'm also
>> >> trying to do
>> >> the same with Orchestra 90.
>> >>
>> >> Music from the Tandy/Radio Shack Color Computer 2 & 3
>> >> https://sites.google.com/site/dabarnstudio/
>> >> Bill Pierce
>> >> ooogalapasooo at aol.com
>> >>
>> >>
>> >>
>> >>
>> >> -----Original Message-----
>> >> From: Allen Huffman <alsplace at pobox.com>
>> >> To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
>> >> Sent: Tue, Aug 14, 2012 11:50 am
>> >> Subject: Re: [Coco] Lester Hands Lyra Author
>> >>
>> >>
>> >> On Aug 14, 2012, at 10:40 AM, Tom Seagrove <tjseagrove at writeme.com>
>> >>
>> >> wrote:
>> >>> I have a video of a presentation he made at the Chicago 1988
>> >>> Rainbowfest.  Can
>> >>
>> >> you pass on my email to him and ask he contact me please.....
>> >>
>> >> I was a big fan of Musica 2, and later wished that the engine in
>> >> Bells & Whistles 2 (Rainbow) could have been incorporated in to
>> >> Musica.
>> >>
>> >> Later, when Rulaford Research was selling Lester's stuff, I ended up
>> >> with
>> >> a
>> >> modified CoCo MIDI pak (with extra switches and stuff) and other
>> >> goodies.
>> >> My
>> >> first commercially sold software package was a MIDI librarian for the
>> >> Kawai K1
>> >> sold through Rulaford. I had missed earlier chances to get a BBS
>> >> package sold,
>> >> and some VIC-20 games before that, so it was very exciting to see my
>> >> name
>> >> listed
>> >> in an ad, along with some Lester Hands stuff.
>> >>
>> >> Good times.
>> >>
>> >> 		-- A
>
> Chuckle, some of the first code I ever wrote, for using in commercial
> production at KRCR in Redding CA, for an RCA 1802 cpu, was self modifying.
> It could run from power failure to power failure if done correctly.  And
> at
> that point, in 1979, I didn't even have an assembler, I looked it up in
> the
> programmers manual and typed each command into a hex editor.
>
> It wasn't at all painful, heck, I was having fun!
>
> Cheers, Gene
> --
> "There are four boxes to be used in defense of liberty:
>  soap, ballot, jury, and ammo. Please use in that order."
> -Ed Howdershelt (Author)
> My web page: <http://coyoteden.dyndns-free.com:85/gene> is up!
> The best man for the job is often a woman.
>
> --
> Coco mailing list
> Coco at maltedmedia.com
> http://five.pairlist.net/mailman/listinfo/coco
>
>
Gene, Ok, you've got me started! My first computer was an 1802 based
Cosmac ELf. It had all of 256 bytes of memory and had to be programmed
through a hex keypad. It was amazing -- could even play music!!