Question on creating a synthetic Enn

Question on creating a synthetic Enn

Postby Graycode » Sat Jan 10, 2026 5:39 am

Hello guys,

I have a DM41X with the PPC ROM module installed.
I can create a two byte synthetic E using Load Bytes without any problem. But the only way I can create a three byte (Enn) synthetic E is by entering the second digit as a separate two byte synthetic E.

The end result is the program line has En En instead of Enn. (This En En still creates the correct exponent when the program is executed.)

What's the secret to making a three byte synthetic E?

Thanks

Graycode
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Re: Question on creating a synthetic Enn

Postby Garth » Sat Jan 10, 2026 4:02 pm

Were you in on this related topic on the SwissMicros forum?  As you can see, this forum doesn't get much traffic here; but there are some very knowledgeable members who drop in once in a while.
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Re: Question on creating a synthetic Enn

Postby Graycode » Sat Jan 10, 2026 6:58 pm

Hi Garth,

Thanks for the reply. Yes, that was my post.

I have searched most of the HP-41C synthetic programming books, but no luck.

The search feature on this site has helped a lot.

I may post a message on the HPMuseum forum too.

Edit: Everything ok now. I must have screw'd up early on and did not read all the details for using LB.

-Graycode
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Re: Question on creating a synthetic Enn

Postby mike-stgt » Sun Jan 11, 2026 3:10 pm

Graycode wrote:What's the secret to making a three byte synthetic E?


It's no secret -- ZENROM makes programming of sythetics much simpler. In PRGM mode hit EEX and when releasing the EEX key the prepended 1 will be removed.
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