- Why the Z-80’s data pins are scrambled (righto.com)
If you look closely at the datasheet for a Z-80 chip, you’ll notice the data pins are in a random-looking order. The address pins (A) are nicely arranged in order counterclockwise from 0 to 15, but the data pins (D) are all shuffled around. After studying the internals of the chip, I have a hypothesis to explain this.
- Ruhollah Khomeini (Wikipedia)
Ayatollah Ruhollah Musavi Khomeini (17 May 1900 or 24 September 1902 – 3 June 1989) was an Iranian Islamic revolutionary, politician and religious leader who served as the first supreme leader of Iran from 1979 until his death. He was the founder of the Islamic Republic of Iran and the leader of the Iranian Revolution, which overthrew Mohammad Reza Pahlavi and ended the Iranian monarchy.