Prelude to Computer Science - 11: Model of a Computer

[sloppyjoes]

Are A and B in like L1 cache or is that a separate thing altogether?

[TheFallibleFiend]

I'm not sure how modern chips are organized, but in my recollection registers are not part of cache. Typically, cache is just faster memory - memory that can be read from and written to. Registers can do that, but they can perform in situ operations (rotations, adds, etc).

[apieceoftofu]

Wow that is difficult to grasp... complicated but cool.

[darijo203]

so basicly the size of memory really depends on the register and not on the address bus. I mean it probably depends on both of them but but register is first in the hiararchy???

[TheFallibleFiend]

It's not actually a hierarchy, b/c the components have to work together, but if I understand your question, the answer is yes.

What I laid out here is a very simple case. We could have, though, just for example, a 32 bit address space with only an 8 bit bus; HOWEVER, you also then have to have a LOT more complicated control logic to marshal the 4 bytes independently.

[bender962]

working my way!