- Equuleus (/ɪˈkwuːliəs/ ih-KWOO-lee-əs) is a faint constellation located just north of the celestial equator. Its name is Latin for “little horse”, a foal. It was one of the 48 constellations listed by the 2nd century astronomer Ptolemy, and remains one of the 88 modern constellations. It is the second smallest of the modern constellations (after Crux), spanning only 72 square degrees. It is also very faint, having no stars brighter than the fourth magnitude.
- 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.
