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I mean, they do provide a footnote explaining further: > Even the most common architecture, the Intel Pentium, whilst having an instruction set that is catego
by asimpletune 6y ago
I mean, they do provide a footnote explaining further:
> Even the most common architecture, the Intel Pentium, whilst having an instruction set that is categorised as CISC, internally breaks down instructions to RISC style sub-instructions inside the chip before executing.
- mhh__ 6y agoThat's what I'm saying is wrong. Note that the instructions are RISC style i.e. some fairly large instructions decode into a pretty small number of micro-operations, which implies said "RISC" operations are actually quite bulky. Issue-width isn't everything, but ARM chips are really showing the limitations of x86.
- mhh__ 6y agoAddendum: "Wrong" is also wrong. More nuanced would be to say that for an introduction to architecture (i.e. for an engineer to draw a trend line with a fat pen on a graph), this is the kind of detail that actually matters when it comes to intuition-building, so it's misleading.