FPUs for small computers (Was: What to download for a PDP-8)
frustum at pacbell.net
Wed Oct 17 20:38:51 CDT 2007
dwight elvey wrote (in response to a response to a message I posted):
> I have a S100 board made by N* that is a math board but it
> doesn't have a FPU. It has a 2901 and some ROM chips.
> It only has the one 2901.
That is the same board that I was talking that kicked off this
mini-thread. However, reading back, I wrote it a funny way:
> Northstar (of Northstar Horizon fame) sold an S-100 card that had
> a TTL FPU on it. It was a microcoded affair (256 words of 40 bits) ...
I meant to say the board implemented a FPU in TTL, not that there was a
monolithic TTL FPU chip of some kind.
More information about the cctalk