Tag Archives: Hardware

The Processor (Part II)

Some updates about processor! I just finished implementing 67 instructions (not tested all of them obviously!). And these instructions are not covered: floating point stuff Co-processor stuff Atomic Read-Modify-Write BREAK and WAIT Anything Cache related Trap instructions Also, Division is implemented using “/” and “mod”. These are not synthesize-able and also for division I’m not …

The Processor (Part I)

Some time ago I made (in VHDL) a rather stupid processor with very limited instruction set which I called  pico-CPU. You can find it under pico_CPU folder in  pico-CPU repository on github.  The point back then was to make something for a course ( the course was called Digital Systems Modeling and Synthesis). Later on i started …