[Coco] Disk image

Gene Heskett gheskett at wdtv.com
Mon Jul 27 02:59:13 EDT 2015



On Monday 27 July 2015 01:56:01 Dave Philipsen wrote:
> EDTASM+ was the first assembler I ever used and it was the first
> accessory I ever bought for my 4K Color Computer.  I learned 6809
> assembler with it and my Lance Leventhal book back in 1979 I think.
> It's an excellent starting point but I must admit that after I got
> started I quickly moved on to the assembler that came with OS9 L1 then
> L2 then the AS assembler.  Now, for standalone embedded applications
> without an operating system I use the CSC6809 assembler that is
> probably at least 25 years old but very capable.  I have the 6801/11, 
> 6502, 8048, and 8051 versions of it too along with some nice utilities
> for manipulating object code files.  These programs were written by a
> guy named Bud Pass (PhD) down in Georgia.  I have no idea if he still
> markets them.
>
> Dave Philipsen

No. But when a friend bought a copy of sleuth, and found it was src code 
that he had no clue how to assemble, it got handed off to me, where I 
also found that its asssembly nemonics and names were still the original 
5 byte long versions from the first ever release of os9 level1 version 
1.00.00 style and incompatible with the defs files I had from version 
1.01.00 (the $29.95 upgrade to level 1).  And by then the coco3 had been 
out long enough that I had one.

So I emailed Bud and asked for his permission to bring it up to date and 
his reply was a most gracious yes.  I've since brought it up to level 2 
and 6309 compatibility.  Due to the way it was organized originally, 
that was relatively easy.  I've since been given permission to post it 
on my web page for all to use.

This is not a 1 pass disassembler, as you must build up a file it 
references to tell it when to treat what it reads as vars/strings, and 
what is executable code.  So it takes a bit of work to use it, but the 
end result will then re-assemble to the exact same crc.

I will also state that anyone who took Bud's course, was taking the 
course from a true master of the craft.

> On 7/27/2015 12:05 AM, Kip Koon wrote:
> > Hi Bill,
> > Here's some dropbox links for you.  The EDTASM.zip file has both
> > Tandy's EDTASM and Robert Gault's upgrade EDTASM++.  EDTASM.dsk is
> > the TANDY EDTASM I believe and EDTASM++.dsk and EDTASM++.txt is
> > Robert Gault's Upgrade of EDTASM++.  The upgrade was adapting EDTASM
> > to the 6309 microprocessor.  I'm giving you both just in case you
> > might someday need it.

Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>


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