Stand by power WP 34s & HP 35s

[brouhaha]

(09-02-2014 02:27 PM)Harald Wrote:  I have no idea what kind of processor the HP35 uses,

The HP 35s uses a GeneralPlus (formerly SunPlus) microcontroller with a 6502-compatible core, masked ROM, and an external static RAM chip. It's a much less powerful processor than the ARM used in the 20b/30b. The firmware is written in C, and unfortunately the 6502 architecture isn't very efficient for running C code.