2 ms·
There is at least one more layer, which lies behind the abstraction boundary the ISA presents. E.g. x86-64 specifies only 16 general purpose registers, but the
by noelwelsh 2y ago
There is at least one more layer, which lies behind the abstraction boundary the ISA presents. E.g. x86-64 specifies only 16 general purpose registers, but the Zen 4 has 224. Even as far back as Pentium II the CPU had more registers than the ISA.
- josh-sematic 2y agoYou’re not even close to hitting rock bottom on explanations of the layers below until you find yourself comparing proposed theories of quantum gravity :-)
- kevindamm 2y agoIt is around that point that you may be convinced that rocks are capable of conscious thought and the strange loop begins again at the top.
- hnfong 2y agoI am a conscious thinking rock. (kinda)
- Dylan16807 2y agoI don't think ignoring negligible effects means you're a significant distance from the bottom. You can semi-skim through quantum effects and still have enough detail to stretch your scale to the bottom.