bit-slice and microcode discussion list

Jon Elson elson at
Fri Aug 23 10:58:50 CDT 2019

On 08/22/2019 12:47 PM, Tom Uban via cctalk wrote:
> On 8/22/19 12:16 PM, Eric Smith via cctalk wrote:
>> On another mailing list, someone asked if there was any list specifically
>> about bit-slice design and microcoding. I don't know of one, so I've
>> created a new mailing list specifically for those topics:
>> The intent is for the list to cover technical discussion of bit-slice
>> hardware design and/or microcoding. In other words, discussion of
>> microcoding that doesn't use bit-slice hardware is fine.
> On a possible related note, I am looking for information on converting
> CISC instructions to VLIW RISC.
Wow, I think that ends up looking like a compiler, or at 
least the optimizing back end part of a compiler.  I worked 
a bit with a Trace Multiflow, and their optimizing back end 
was VERY slow, which I assume means it was a complex task to 
reorder all the atomic operations and pack into the long 
instruction words for best throughput.

I think it might end up looking a bit like the optimizers 
that were used on drum memory computers back in the dark ages.


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