HP-91 Simulator

[teenix]

(02-18-2017 01:09 AM)Joe Horn Wrote:  Shift Sigma+ stopped working correctly. Instead of performing Sigma- as it should, it instead performs Sigma+. Oh, those pesky shifted funtions!

EDIT: Indeed, many shifted functions seem broken, e.g. 10^x, LOG, SIN^-1...

EDIT: 0 / --> Error... which cannot be cleared except by turning the 91 off and back on.

EDIT: RCL and STO no longer work.

Boy this model really got the better of me :-)

Sorry again.

Seems ok this time

Have uploaded again

(02-18-2017 07:41 PM)PANAMATIK Wrote:  It would be much easier to emulate the original HP-91 ROM code. If I could get an HP-91 from somebody (here in europe) I should be able to provide the ROM code.

Bernhard

Amen to that. If I get a copy then I can recreate the original.

cheers

Tony