IMP system software

Adrian Wise apw at
Sat Oct 3 02:31:18 CDT 2009

Hi Philip

Old age must be creeping up on me since I clearly don't recall 
correctly! The H316 is 1.6us as you say.


Philipp Hachtmann wrote:
> Adrian Wise wrote:
>> The 516 and the 316 are 100% code compatible.
> Just wanted to write that...
>> Just the cycle time differs (0.96us for the 516, 1.3us for the 316 IIRC)
> Have you tuned up your H316? My machine is running on 1.6us! In that 
> case I would be glad to get your CPU and memory timing configuration :-)
> (Otherwise it would be an interesting experiment to see if and how much 
> faster a H316 could be made. I'm quite confident that Honeywell/3C 
> delivered the machines in a very stable configuration with big reserves 
> with respect to reliability)
> Best wishes,
> Philipp :-)

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