Stupid question: what's so special about the 8 in 8-bit CPUs?
> Simplicity
>
> With some practice, you could keep the whole of an 8-bit processor’s instruction set in your head.
Is it just a matter of replacing all instructions/chips/buses to be 32 bit/lane? Or is it just that in practice the 32 bit CPUs have more complex ISAs?
The reason I ask is that I'm learning RV32I, and writing a simple implementation, and wondering if there's any additional didactic value in me learning 8-bit CPUs.
> Simplicity > > With some practice, you could keep the whole of an 8-bit processor’s instruction set in your head.
Is it just a matter of replacing all instructions/chips/buses to be 32 bit/lane? Or is it just that in practice the 32 bit CPUs have more complex ISAs?
The reason I ask is that I'm learning RV32I, and writing a simple implementation, and wondering if there's any additional didactic value in me learning 8-bit CPUs.