[[File:Z80-top-level-partitions.jpg|500px]]
See: [https://www.righto.com/2014/10/how-z80s-registers-are-implemented-down.html How the Z80's registers are implemented] [https://www.righto.com/2013/11/the-z-80s-16-bit-incrementdecrement.html The 16-bit increment/decrement circuit] [https://www.righto.com/2013/09/the-z-80-has-4-bit-alu-heres-how-it.html The 4-bit ALU] [https://zeptobars.com/en/read/Zilog-Z80-Z0840004PSC Z80 die-shot(zeptobars)] [https://siliconpr0n.org/map/zilog/z0840008psc-z80cpu/bercovici_mz/ Z80 die-shot (bercovici)]
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