Not a project, but a challenge! Did you ever have a look at the PIC16 family instruction set?
Overview
Not a project, but a challenge! Did you ever have a look at the PIC16 family instruction set? Microchip datasheets announce 35 instructions, but can't we get more? Time to explore the PIC16 reduced instruction set to see if we can extend it.
The Investigation
Examined the PIC16 14-bit instruction set, re-arranged the instruction table sorted by opcode number, and identified holes. There may be a total of 119 secret opcodes.
PIC16 undocumented opcodes in red
The Challenge
Maybe all of these opcodes are NOPs, or will freeze the MCU, but maybe not! Who will try to find out some of them?