Top "Cpu-architecture" questions

The hardware microarchitecture (x86, x86_64, ARM, ...) of a CPU or microcontroller.

What exactly is a dual-issue processor?

I came across several references to the concept of a dual issue processor (I hope this even makes sense in …

embedded arm pipeline cpu-architecture
Are armv8 and arm64 the same?

In xcode which is the developement environment for iOS. When creating a new project. Build settings states that it supports …

ios xcode cpu-architecture arm64
Why were bitwise operations slightly faster than addition/subtraction operations on older microprocessors?

I came across this excerpt today: On most older microprocessors, bitwise operations are slightly faster than addition and subtraction operations …

c bit-manipulation bitwise-operators cpu-architecture digital-logic
Why is a conditional move not vulnerable for Branch Prediction Failure?

After reading this post (answer on StackOverflow) (at the optimization section), I was wondering why conditional moves are not vulnerable …

performance assembly optimization cpu-architecture branch-prediction
Difference b/w hyper threading and multithreading?

I was wondering if someone could explain me the difference b/w these two ? Has it something to do with …

multithreading cpu-architecture hyperthreading
Porting 32 bit C++ code to 64 bit - is it worth it? Why?

I am aware of some the obvious gains of the x64 architecture (higher addressable RAM addresses, etc)... but: What if …

c++ x86 64-bit x86-64 cpu-architecture
floating point operations per cycle - intel

I have been looking for quite a while and cannot seem to find an official/conclusive figure quoting the number …

cpu intel cpu-architecture flops nehalem
Negative numbers are stored as 2's complement in memory, how does the CPU know if it's negative or positive?

-1 can be represented in 4 bit binary as (2's complement) 1111 15 is also represented as 1111. So, how does CPU differentiate between 15 …

binary cpu-architecture numeric sign twos-complement
Which CPU architectures support Compare And Swap (CAS)?

just curious to know which CPU architectures support compare and swap atomic primitives?

multithreading multicore atomic cpu-architecture
Determining the CPU architecture of a static library (LIB) on Windows

I just built libpng on a 64-bit Windows machine using VS2008. It produces a libpng.lib file inside the \projects\…

windows 64-bit static-libraries cpu-architecture libpng