(this page in work, just making notes for now)
A 4 bit instruction set doesn't leave much room. How do you get anything done in 4 bits?
16 op codes: 8 sources, 8 destinations, and after destination, the next opcode sets ALU operation, after operation, each source carries out that operation into the destination
Source / Destination can be
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<A HREF="http://www.piclist.com/techref/logic/CPU.htm"> Digital Logic Tutorial Central Processing Unit (CPU)</A>
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