New posts in X86 64

Microarchitectural zeroing of a register via the register renamer: performance versus a mov?

Why would introducing useless MOV instructions speed up a tight loop in x86_64 assembly?

JRE 32bit vs 64bit

How to specify register constraints on the Intel x86_64 register r8 to r15 in GCC inline assembly?

Memory alignment : how to use alignof / alignas?

Instruction Level Profiling: The Meaning of the Instruction Pointer?

Passing Parameters in 64 bit Assembly Function from C language. Which Register Receive These Parameter?

Is there a 128 bit integer in gcc?

Can counting byte matches between two strings be optimized using SIMD?

x64 instruction encoding and the ModRM byte