Running Simulators from teenix.org on virtual machine?

[teenix]

(07-10-2017 12:12 PM)Thomas Okken Wrote:  Switch to RUN mode; try running program by saying GSB 0. Display goes black.

N.B. Running the equivalent programs in the HP-25 and HP-97 emulators went fine. I love how even the flickering junk in the display looks authentic. :-)

Yes, you are correct.

I don't know why it has decided to fail, unless my fiddling with code for the other models has upset the apple cart somehow.

The problem is the P register which is decrementing by 2 in a microcode loop. It is initially set to an odd number, but gets tested for 0 to break out. This will never happen though as all P values will be odd, and this is very odd too :-)

The 97 has a different method for doing the same thing.

This will take some time to nail unfortunately.

The code is original, so hopefully the display should be reacting as the real thing.

cheers

Tony