Delete comment from: Ken Shirriff's blog
> Maybe the stack pointer (ESP) is copied as part of interrupt handling.
I bet primary goal was to facilitate implementing "push esp" and "pusha". It could also be used when switching stacks but then ss descriptor register would probably be similarly buffered?
Jun 1, 2025, 5:50:58 AM
Posted to The absurdly complicated circuitry for the 386 processor's registers