Delete comment from: Ken Shirriff's blog

Keith said...

The Zilog Z80 has special register groups, but it calls them the "main" and "alternate" "register sets". The registers AF, BC, DE, HL are all duplicated, and there is an instruction to switch between sets. This is intended to allow "faster response to interrupts and easy, efficient implementation of such versatile programming techniques as background-foreground data processing".

Oct 23, 2019, 8:33:57 AM

Posted to How "special register groups" invaded computer dictionaries for decades