Re:Show HN: I made a discrete logic network card
by RetroTechie on Tuesday April 09, 2024 @08:48AM
(#39978850)
> What does "discrete logic" mean in this case?
74xx series ICs (eg. 74ACT family in case of the cpu, if I read correctly).
More generally, it may refer to "basic logic elements whose function is easily inspected".
> Why would this prevent interrupts?
Not at all - in theory.
In practice, interrupt support tends to complicate cpu designs. Complicate = more logic = more ICs. So builder decided against it & chose not to implement interrupts on the cpu.
74xx series ICs (eg. 74ACT family in case of the cpu, if I read correctly).
More generally, it may refer to "basic logic elements whose function is easily inspected".
> Why would this prevent interrupts?
Not at all - in theory.
In practice, interrupt support tends to complicate cpu designs. Complicate = more logic = more ICs. So builder decided against it & chose not to implement interrupts on the cpu.