- Jimmy Chérizier (also called “Babekyou” or “Barbecue”; born 1976 or 1977) is a Haitian gang leader and former police officer who is the head of Fòs Revolisyonè G9 an fanmi e alye (“Revolutionary Forces of the G9 Family and Allies”, abbreviated “G9” or “FRG9”), a federation of over a dozen Haitian gangs based in Port-au-Prince. Chérizier is currently considered one of the most powerful gang leaders in Haiti. He is believed to be responsible for numerous large-scale massacres in the Port-au-Prince area.
- Down to the silicon: how the Z80’s registers are implemented (righto.com)
The 8-bit Z80 microprocessor is famed for use in many early personal computers such the Osborne 1, TRS-80, and Sinclair ZX Spectrum. The Z80 has an innovative design for its internal registers, with two sets of general-purpose registers. The diagram below shows a highly-magnified photo of the Z80 chip, from the Visual 6502 team. Zooming in on the register file at the right, the transistors that make up the registers are visible (with difficulty). Each register is in a column, with the low bit on top and high bit on the bottom. This article explains the details of the Z80’s register structure: its architecture, how it works, and exactly how it is implemented, based on my reverse-engineering of the chip.