[Coco] orch-90 file format question

[Bill Pierce]

Todd
The orch90 file format is simple.
First the reason your files are not showing is real orch90 files have NO extension. The files with the orc extension are most likely from a model 3 or 4.
There is one difference, these are ascii files and Coco orch files are (semi)binary. On the Coco, the first character of each line has 128 added to the ascii value and has no carriage returns. The "orc" files are straight ascii.
To load these files, just change the name so they have no extension then load them with R FILENAME A
The "A" tell the orch 90 that they are in ascii
You can the just W FILENAME to save it in Coco format

The Orch90 manual is in all the various archives on the net

Bill Pierce
My Music from the Tandy/Radio Shack Color Computer 2 & 3
https://sites.google.com/site/dabarnstudio/
Co-Webmaster of The TRS-80 Color Computer Archive
http://www.colorcomputerarchive.com/
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E-Mail: ooogalapasooo at aol.com




-----Original Message-----
From: Todd Wallace <dragonbytes at cox.net>
To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
Sent: Tue, May 7, 2013 7:09 pm
Subject: [Coco] orch-90 file format question


Hey guys,

So I've been tinkering with my new Orch-90 cart and trying to get some .orc 
files downloaded from the net into it.  Once I finally figured a way to get the 
.orc files onto a floppy, I set it up with my MPI.  The DIR command from within 
the orch90 pak wouldnt even show the file I copied.  After some experimenting, I 
discovered that the orch90 will ONLY accept files that are in "BASIC data file" 
format and in ASCII.  So I got the correct flags set and it finally showed up in 
the DIR.  However, when I tried to load the .orc file, I got a ERR 4.  I noticed 
the .orc files I downloaded all seem to be ascii text when viewed in a text 
editor on a PC.  I can see the comments and orch90 text commands, etc.  So I 
wondered what a file saved WITH the pak to disk would look like.  I used the 
WRITE command to output the built in demo song to disk, copied to PC, and 
discovered it is NOT a text file.  The DECB file flags are still BASIC data file 
and ASCII, but when opened with a text editor,
  its some sort of binary or something. So if anyone might be able to give me 
some info on what format these things need, that would be great.  Does the 
orch90 pak accept text file music files?  

- Todd Wallace

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