Comment by librasteve

haha - took me a while to figure out that's Mauro Bonomi's signature

iirc the 3167 was a single clocked, full barrel shift mac pipeline with a bunch (64?) of registers, so the FPU could be driven with a RISC-style opcode on every address bus clock (given the right driver on the CPU) ... the core registers were enough to run inner loops (think LINPACK) very fast with some housekeeping on context switch of course

this window sat between full PCB minicomputer FPUs made from TTL and the decoupling of microcomputer internal clocks & cache from address bus rates ...

Weitek tried to convert their FPU base into an integrated FPU/CPU play during the RISC wars, but lost