go01

    • Commercial HP01 emulator for android.for ease of use, displayed as a classic look alike.
    • quartz synced with android time, so good accuracy.
    • automatic save and load of state.
    • alarm beep only when time displayed.
    • stopwatch beep at zero only when displayed.
    • dynamic calculation supported
    • no timeout on displayed information (battery is no more a concern ...)

Not an exact replica of the HP 01, the rom is taken from a preproduction patent # 4158285: ie there is no % function on this emulation.

It is best to get a manual to use this emulation.

A better display as a watch will follow

First release:

    • should work with at least 600x480 screen.

Time (24 hours mode)

Date (21 century)

Alarm (set)

Stopwatch

Calc

Settings

Some technical details:

    1. re type the rom listing from patent 4158285
    2. make a cricket assembler
    3. check proof the rom
    4. use patent 4158285 to emulate cpu and display module (more complicated than a classic calculator)
    5. try to fully understand the internal format to have a good accuracy on time, stopwatch and alarm
    6. make a 'nice' calculator like skin to debug it
    7. ....