Re: Speed of the HP-41CL Message #2 Posted by Eric Smith on 17 Jan 2012, 3:56 a.m., in response to message #1 by MichaelG
In the 50x turbo mode, many, but not all, of the 41's microinstructions run at 50 times the normal speed. However, certain microinstructions, including all the ones that access the display and peripherals, have to run at normal speed, so those run at 1x, or perhaps even slower due to the delay to sync up to the 1x serial bus. This results in the average execution speed being much lower than 50x. The actual speed will vary a lot depending on exactly what your program is doing.
Edited: 17 Jan 2012, 3:56 a.m.
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