Pre Release HP01 Running

[teenix]

Hi all,

I have uploaded a HP-01 module to the emulators at teenix.org

It turned out to be a tricky device to get going and took some time to do as I didn't have anything to work with except the 4158285 patent document.

This watch/calculator is obviously a pre-release version as the code occupies 9 ROM pages except 8. A lot of vacant ROM space is also present which I imagine would represent an expensive waste if it went into production.

It also doesn't have the percent (%) key. I didn't notice this at first and it threw me as some of the code appeared to be flawed and I wasted a lot of time trying to re-model the code to get it to work.

Running simulations was a bit tricky too because the simulator had to deal with the module in sleep mode while still keeping the two timers active, one down to 100th of a second, plus still allow single stepping etc.

However, as far as I can tell it is working fully as described in the document including the hourly timer wakeups. It also has the original alarm sound.

The emulator exe file was modified to accept the new instructions and simulator functions for this model, so the new version cce33.zip will need to be downloaded to run the HP-01 module.

cheers

Tony