Uploaded April 2018 | Updated September 2026, 2 weeks ago

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In this video we program the microcode of the 8-bit breadboard computer so that it supports two conditional jump instructions: JC (jump carry) and JZ (jump zero). We also test out these new instructions and write several programs using them.

Code from this video: github.com/beneater/eeprom-programmer
Matthew's Patreon post with clever self-modifying code: patreon.com/posts/how-to-make-16240529
Intel x86 developers guide (4800 pages! CMP instruction is on p.726): software.intel.com/sites/default/files/managed/39/c5/325462-sdm-vol-1-2abcd-3abcd.pdf#page=726

More 8-bit computer: eater.net/8bit
Support me on Patreon: patreon.com/beneater

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