## Modules' number and other

Discussion about the new DM41X calculator
salvomic
Posts: 105
Joined: Sat Dec 30, 2017 10:09 am
Location: Ragusa, Sicily
Contact:

### Modules' number and other

hi,
apart from the memory limit, is there a maximum number of Modules pluggable into DM41X?
I'm using now 6 for testing purpose; here data and for testing:

1. Advantage (MOD 3P, two pages, 8-9)
2. Math pac (MOD 1P, C)
3. Stat pac (MOD 1P, D)
4. Financial Decision Pac (MOD 1P, E)
5. Navigation pac (MOD 2P, two pages, A-B)
6. Circuit Anaysis Pac (MOD 1P, F).

pages used: 0-7 (some): SM_NUT-CXX (0-3, 5).

Actually I need only the first 5.

• Trying to add SM DX--41X I get the message """Cannot add another OS module", but I think this is normal.

• FORT 41 (Forth.mod) conflict with my other modules: ROM conflict. Here above the message

Code: Select all

/MODS/FORTH.MOD ROM Time 2x ™-2x vs. /MODS/FORTHMOD ROM FORTH5 - SV06:
• Circuit Analysis Pac was added without errors (only for test).

Any hints much appreciated, thanks. In the meantime I'm reading the DM41X manual

Salvo
∫aL√0mic (IT9CLU) :: DM42 (SN: 00881), DM41X (SN 00523), DM16, HP Prime, 50g, 41CX, 42s, 71b, 15C, 12C, 35s, WP34s -- Free42

rprosperi
Posts: 993
Joined: Mon Apr 24, 2017 7:48 pm
Location: New York

### Re: Modules' number and other

In theory, you can install 11 modules, in pages 4, 6, 7 and 8-F, but they would all have to be carefully selected 1-Page modules, with non-conflicting XROM IDs; it's likely this can be done, but it would be a silly mixup of unrelated modules plugged together just to see it can be done.
--bob p

DM42: β00071 & 00282, DM41X: β00071, DM10L: 071/100

salvomic
Posts: 105
Joined: Sat Dec 30, 2017 10:09 am
Location: Ragusa, Sicily
Contact:

### Re: Modules' number and other

rprosperi wrote:
Thu Oct 15, 2020 3:07 pm
In theory, you can install 11 modules, in pages 4, 6, 7 and 8-F, but they would all have to be carefully selected 1-Page modules, with non-conflicting XROM IDs; it's likely this can be done, but it would be a silly mixup of unrelated modules plugged together just to see it can be done.
Well, interesting. In the HP 41CX I could put only two modules + two memory in other slot, a great advantage now

Yes, to keep so many modules plugged (and maybe few used) could be important only for testing, not for real usage; luckily in DM41X is simply to plug and unplug them in a while.

Salvo
∫aL√0mic (IT9CLU) :: DM42 (SN: 00881), DM41X (SN 00523), DM16, HP Prime, 50g, 41CX, 42s, 71b, 15C, 12C, 35s, WP34s -- Free42

Thomas Okken
Posts: 765
Joined: Tue May 02, 2017 5:48 pm
Location: United States
Contact:

### Re: Modules' number and other

salvomic wrote:
Thu Oct 15, 2020 3:12 pm
Well, interesting. In the HP 41CX I could put only two modules + two memory in other slot, a great advantage now
You could plug more modules into a real HP-41, in a way... The college bookstore in my town offered a service where they would combine two modules in one housing (for a reasonable fee, of course). I had a 41CX with just a card reader and printer back then, and no modules, so I had no need for that service, but I remember reading about it and being impressed that they had figured out the 41 architecture well enough to be able to do that.

They could also build modules into the calculator itself so they wouldn't take up ports at all.

(They also offered speed-up surgery for various models. I had them do that to my 10C, which was 1.8 times faster after the procedure. This was actually useful because I did use a numerical root finder on that calculator occasionally. )

salvomic
Posts: 105
Joined: Sat Dec 30, 2017 10:09 am
Location: Ragusa, Sicily
Contact:

### Re: Modules' number and other

yes, Thomas, at the time of HP 41CX we would have spent a lot of money for those "miracles", sure.
Now DM41X give us more "all included" and it is enough for me (and also very amazing), and with FAST also in "warp" mode

However, is always a fascinating story, for the HP 41 there is a huge literature...

Salvo
∫aL√0mic (IT9CLU) :: DM42 (SN: 00881), DM41X (SN 00523), DM16, HP Prime, 50g, 41CX, 42s, 71b, 15C, 12C, 35s, WP34s -- Free42

rprosperi
Posts: 993
Joined: Mon Apr 24, 2017 7:48 pm
Location: New York

### Re: Modules' number and other

And of course there was the AME Port Extender, which held 8-10 modules and an array of switches to toggle each port off/on so you could switch among them without having to physically insert/remove modules from the Extender base. These pop up on eBay every now and then, and they are NOT cheap. Also a testament to clever guys at the time, having figured out the Port/Page mapping onto the bus, etc. Wish I never traded mine... <sigh>...
--bob p

DM42: β00071 & 00282, DM41X: β00071, DM10L: 071/100

pcscote
Posts: 129
Joined: Tue May 02, 2017 12:12 pm

### Re: Modules' number and other

rprosperi wrote:
Thu Oct 15, 2020 4:07 pm
Also a testament to clever guys at the time, having figured out the Port/Page mapping onto the bus, etc.
[DM1x/DM1xL/DM41/DM41L/DM41X/DM42]

rprosperi
Posts: 993
Joined: Mon Apr 24, 2017 7:48 pm
Location: New York

### Re: Modules' number and other

Isn't that incest??

Quick, make the children look away....
--bob p

DM42: β00071 & 00282, DM41X: β00071, DM10L: 071/100