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HP Forum Archive 09

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HP41 Unit conversion program?
Message #1 Posted by Peter Greb on 13 Nov 2002, 12:04 p.m.

As the subject says, I'm looking for a unit conversion program like in the 48 series. Is something like this implemented in some ROM? Or is there code for this available somewhere?

Thanx in advance, Peter...

      
Re: HP41 Unit conversion program?
Message #2 Posted by Emmanuel, France on 13 Nov 2002, 12:18 p.m.,
in response to message #1 by Peter Greb

I improved one for my Calc41 environment on PC. Which unit would you like to use? It's easy to write it.

            
Re: HP41 Unit conversion program?
Message #3 Posted by David on 13 Nov 2002, 1:55 p.m.,
in response to message #2 by Emmanuel, France

metric to metric would be good for me! (i can never remember the conversions)

      
Re: HP41 Unit conversion program?
Message #4 Posted by Mike (Stgt) on 13 Nov 2002, 4:19 p.m.,
in response to message #1 by Peter Greb

If you may use ROMs (in a RAMBOX or in an emulator) use the Thermal Transport ROM or the Petrol ROM.

Ciao.....Mike

            
Re: HP41 Unit conversion program?
Message #5 Posted by Juan J on 13 Nov 2002, 9:21 p.m.,
in response to message #4 by Mike (Stgt)

The unit conversion routines are implemented in both the Petroleum Fluids Pac and the Thermal & Transport Science Pac. The former has, in my opinion, a much better implementation: you just enter the units to be converted separated with a dash in the alpha register and then execute the CON function. However, it is written in machine language and cannot be copied unless you have a ROM box or an Hepax module. Same thing for the Thermal Pac.

Petroleum Fluids Pacs appear every now and then in eBay. Thermal & Transport Science Pacs are much rarer.

                  
Re: HP41 Unit conversion program?
Message #6 Posted by Peter Greb on 15 Nov 2002, 10:35 a.m.,
in response to message #5 by Juan J

Hmm, it's just what I suspected: Try to get a suitable ROM. Well, now I at least know WHAT to look after. German ebay's not flooded with ROMs but maybe I will have some luck.

Thanx, Peter...

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