semi-homemade micro

[woodelf]

Gooijen, Henk wrote:

>1/10 the speed of a real PDP8?  Really? That is fast indeed!
>My emulation of a PDP8, running on a 68B09 (at 2 MHz) gets to
>approx 1/60 of the real thing. I measured that by running some
>diagnostics. The diag says "bell rings after approx 5 seconds),
>and timed how long it took on my 68B09...
>I am sure that when I remove the front panel code things run
>faster. The front panel requires time to update. But running
>the emulation without the front panel is no fun.
>
>  
>
Having got a new PC ... 2 GHZ???  who knows the real speed.
I have tried Spare time gizmos - pdp 8 emulator  ( A minor bug
-- with windows  how do you get the bell to sound ?).
I was running some sort of diagnostics and had the RTC displayed
and for about 10 minutes of real time, the clock advanced a hour.
That must be at least 6x faster than the real thing on this computer.

>- Henk, PA8PDP.
>  
>