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This is a snapshot of the shoddily maintained Pinky Processor repo, cobbled together to lure Jaymin Kessler. The instruction set is described in pinky_isa1.txt The top-level simulator ran last I played with it. The idea behind the pinky is to have lots of very small, simple processors with bitwise-addressible memory and a little bit of visible local memory, no addressible registers, no cache, and 4 instructions, which are focused on self-modifying code and the idea that they quiesce quickly to a sleep state while possibly being fully implementable with async logic. They're meant to be interconnected using a serial bus to lots of other pinkies, as a single pinky can't get much done alone. The core operation of a pinky is the move instruction, which is meant to change data in another move instruction, so that when that next move instruction runs, it's doing a lookup operation. The other important operation is arm, which waits for you to write to an armed address, and when you do, it executes the specified code as soon as it gets to the next wait instruction. The last instruction setN is meant only to change the dynamic length of the instruction set and its operands, which helps optimize code around the working set size.
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