MLDL unit for 41 ??



#2

I just read a post
(http://www.classiccmp.org/pipermail/cctech/2002-August/001280.html)
describing a machine-language development module for the 41 ...
Anybody seen this or heard of it?


#3

Hi;

Meindert Kuipers is the name of the man who developed a custom MLDL for the HP41.

This is one of his posts. I'm almost sure he will not feel bothered reading an e-mail from you. And he is a regular contributor, soon you'll be answered by him, too.

Best regards.

Luiz (Brazil)


#4

So, is this MLDL2000 the same unit?
It looks like he is making a new version - I mean, other than the bug fix he refers to in the post.
Or was there an original MLDL that is in production?

Thanks for your response,
Sean

#5

Come to think of it, the 41 m-code book I'm looking at which mentions this is copyright 1985 - so there is definitely an older version of this module.
I wonder if anyone has used this version?


#6

Hi;

As far as I know, Meindert is developing his custom version "from scratch". I've been following his posts, but I'd like being closer to his project. It is a teasing, amazing activity.

Sorry, I have no further information. Meidert maintains a page where all of the developmetn is kept as doc files. I do not have the e-address right now...

Best regards.

Luiz (Brazil)

#7

Hi,

of course there are various other MLDL-type hardware extensions for the HP-41.
Unfortunately, most of them had been designed and been on the market from 1980/81 to 1989 .

Names which come to mind are: ProtoCoder, ERAMCO-MLDL, MBK ProfiSet, W&W RAMBox, VM HEPAX module, HP-41CY, and maybe more which I don't recall at the moment...

Some only had EPROM sockets, other have RAM, and some have both, like the ProfiSet.

As Luiz wrote, Meindert is building a new MLDL-type ROM simulator or RAMBox from scratch. This is a very cool thing, and I hope to be able to get a unit when he publishes the box:-)


Regards,

Raymond

#8

I heard my name mention a few times, it almost makes me blush ...

I have a preliminary spec at www.kuipers.to/hp41. I have alomst finished an updated spec which I hope to upload somewhere during next week.

My MLDL is a completely new design. I have learned from other designs, but mine has a different approach. There is now progress (had to fix a serious bug and do redesign) and I am busy simulating the thing. I hope to be able to build a new prototype before I leave for my summer vacation in sunny France (do not despair if you do not see any posts for a few weeks from me) but I will take my notebook and will be able to do some software development.

Please email me for any questions you might have ...

Meindert


#9

re: "... my summer vacation in sunny France (do not despair if you do not see any posts for a few weeks from me) but I will take my notebook and will be able to do some software development."

Now there's the OPERATIONAL definition of geek/nerd!

(And, I bet we all do it! I'm currently debating whether to take a laptop when I go visiting parents and in-laws in a few weeks. I will, at least, take my bookmarks and history files on a floppy so I don't lose my place in this forum.)

#10

Dear Meindert,
Good enjoy then! ;o)
Taste french wines, cheeses,...
There's sometimes something more important than calcs.
Kind regards from Normandy. Sincerely.
Emmanuel

#11

I am NOT a nerd. The main reason I take my notebook is that my kids can watch a DVD in the back of my car ;) Nerds do not have families (or do they ...). And I will not be able to go online anyway.

And Emmanuel is totally right: I will enjoy the French Atlantic coast (though much further south than Emmanuel is) with its wines, cheeses, fish and all the other good things in life.

Meindert


#12

Dear Meindert,
First, thanks.
I'm really from Pont-L'Abbé near Quimper.
The best part of Atlantic cost (Bénodet, Loctudy,...)
with Portugal.
;o)
However have a nice trip!
Yours.
Emmanuel

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