8089 Input/Output processor

[Guest]

Input/Output processor,what does this mean?whats its misson and is this a "real" cpu?

thx

[gshv]

It's an embedded processor with on-chip DMA controller and other I/O stuff.
It is supposed to run as a slave processor, it has simple instruction set that includes all of the important instructions - load/store, add, logical operations and jumps/branches, and it doesn't have interrupts. You can probably use it as a microprocessor, but you'd be better off with a real CPU.

Gennadiy