Post Reply 
Annotations for HP 82441A FORTH/Assembler ROM for HP-71
10-31-2017, 07:06 PM
Post: #1
Annotations for HP 82441A FORTH/Assembler ROM for HP-71
If you use the HP-71 FORTH/Assembler ROM, you might find some of my personal annotations in my copy of its Owner's Manual to be useful. The 19 pages containing handwritten notes have been scanned into a PDF (non-annotated pages are omitted).

http://holyjoe.net/hp/Forth_manual_annotations.pdf (8.82 MB)

X<> c
-Joe-
Visit this user's website Find all posts by this user
Quote this message in a reply
11-02-2017, 06:47 AM
Post: #2
RE: Annotations for HP 82441A FORTH/Assembler ROM for HP-71
Thanks, Joe. I copied your notes to my copy of the manual.

I should post my re-writes of some of the Forth words in the module, which dramatically outperform HP's supplied words. In the most extreme case, mine was 13 times as fast, even though I never resorted to assembly language. It will take time to round them up though, and there's already no danger of catching up on my list of things to do.

http://WilsonMinesCo.com (Lots of HP-41 links at the bottom of the links page, http://wilsonminesco.com/links.html )
Visit this user's website Find all posts by this user
Quote this message in a reply
11-02-2017, 01:43 PM
Post: #3
RE: Annotations for HP 82441A FORTH/Assembler ROM for HP-71
(11-02-2017 06:47 AM)Garth Wilson Wrote:  Thanks, Joe. I copied your notes to my copy of the manual.

I should post my re-writes of some of the Forth words in the module, which dramatically outperform HP's supplied words. In the most extreme case, mine was 13 times as fast, even though I never resorted to assembly language. It will take time to round them up though, and there's already no danger of catching up on my list of things to do.

Please do Garth, as time allows.

I have often read that '71 Forth was quite inefficient (e.g. many of the standard words were bulky when compared to reference Forth samples that were in the literature at the time) though no better ones were published. There were plenty of "missing" words shared in the PPC/CHHU journals, such as VLIST (to display the current vocabulary) - I have found at least 4 of them - but don't recall seeing improved versions of standard vocabulary words.

Don't know how many other active '71 Forth folks are out there (please comment if you are) but I'd like to see them and dabble.

--Bob Prosperi
Find all posts by this user
Quote this message in a reply
Post Reply 




User(s) browsing this thread: 1 Guest(s)