Quote:
Originally Posted by TonyDuell
As an aside I was recently working on a 4800 bps leased-line modem unit that does digital signal processing using an '558 parallel multiplier and a couple of 2901 ALU slices. Controlled by a set of microcode PROMs sequenced by 3 2911s. Fascinating bit of design.
|
At the time I was living in the US and had just bought an Exidy Sorcerer with a S100 bus extender, and took a sample 558 and built a hardware multiplier card for it. I always had plans of building a proper floating point unit using 94xx Macrologic but never quite got round to it.