New posts in x86

Why does this function push RAX to the stack as the first operation?

c++ assembly x86 x86-64 abi

What happens after a L2 TLB miss?

performance x86 cpu cpu-architecture tlb

Understanding the impact of lfence on a loop with two long dependency chains, for increasing lengths

performance assembly x86 cpu-architecture perf

What is the stack engine in the Sandybridge microarchitecture?

assembly x86 intel cpu-architecture

Is there a penalty when base+offset is in a different page than the base?

performance assembly x86 micro-optimization

How to get c code to execute hex machine code?

c assembly x86 x86-64 shellcode

`testl` eax against eax?

assembly x86 instructions

What is the difference between Trap and Interrupt?

x86 operating-system kernel interrupt cpu-architecture

How are x86 uops scheduled, exactly?

performance optimization x86 intel cpu-architecture

Why does integer overflow on x86 with GCC cause an infinite loop?

c++ c gcc x86 undefined-behavior

What is the difference between MOV and LEA?

assembly x86 instruction-set

is there an inverse instruction to the movemask instruction in intel avx2?

x86 intrinsics avx avx2 icc

Problems with ADC/SBB and INC/DEC in tight loops on some CPUs

delphi assembly x86 cpu-architecture bigint

What are the latency and throughput costs of producer-consumer sharing of a memory location between hyper-siblings versus non-hyper siblings?

performance concurrency x86 hyperthreading

How to invoke a system call via syscall or sysenter in inline assembly?

linux gcc x86 system-calls inline-assembly

rbp not allowed as SIB base?

assembly x86 x86-64 machine-code addressing-mode

Why isn't movl from memory to memory allowed?

assembly x86 cpu-architecture instruction-set

Why does breaking the "output dependency" of LZCNT matter?

performance assembly x86 cpu-architecture micro-optimization

A couple of questions about [base + index*scale + disp]

assembly x86 att addressing-mode intel-syntax

Can a 64-bit computer (x86) run a 16-bit OS natively, without emulation?

64-bit x86 16-bit windows-3.1