z8086: Rebuilding the 8086 from Original Microcode

After 486Tang , I wanted to go back to where x86 started. The result is z8086 : a 8086/8088 core that runs the original Intel microcode . Instead of hand‑coding hundreds of instructions, the core loads the recovered 512x21 ROM and recreates the micro‑architecture the ROM expects. z8086 is compact and FPGA‑friendly: it runs on a single clock domain, avoids vendor-specific primitives, and offers a…