Online HP-45 Emulator - First calculator with a shift key

[Thomas Klemm]

(12-28-2023 06:15 PM)van2z Wrote:  I found the HP-80 used exactly the same hardware, but I couldn't find the ROM.

You may have to build the nonpareil project and use uasm to compile 80.asm into an object file.

You can find here the: 70.rom.
This is another calculator that used the same chip.

From HP-45:

Quote:The timer could be invoked by pressing RCL and then pressing CHS 7 8 all at the same time.

Not sure if this is possible, but it would be cool if the timer could be started.

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Addendum: If found them here: ROMs

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Relevant: HP-80 Nonpareil Emulator: fixed a bug in the calendar functions
IIRC the bug was present in his iPhone app.
Thus you might have to apply the patch.