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New posts in x86
What is the "C++ ABI Specification" referred to in GCC's manual?
Mar 14, 2022
c++
gcc
x86
language-lawyer
x86-64
Can someone explain this directly assembled x86 JMP opcode?
Aug 17, 2022
assembly
x86
gnu
opcode
protected-mode
how do procedure calls work in assembler?
Sep 25, 2022
assembly
x86
call
function-calls
Threaded execution speed of LOCK CMPXCHG
Jan 27, 2021
assembly
locking
x86
performance
parallel-processing
task gate, interrupt gate, call gate
Dec 06, 2019
linux-kernel
x86
x86-64
How to optimize C-code with SSE-intrinsics for packed 32x32 => 64-bit multiplies, and unpacking the halves of those results for (Galois Fields)
Mar 23, 2022
c
optimization
x86
sse
simd
Why does iret from a page fault handler generate interrupt 13 (general protection fault) and error code 0x18?
Jul 29, 2018
assembly
x86
kernel
SSE multiplication of 2 64-bit integers
Jan 29, 2021
x86
sse
simd
multiplication
sse2
Assembly: why some x86 opcodes are invalid in x64?
Jun 25, 2018
assembly
x86
x86-64
cpu-architecture
opcode
What does this x86 assembly instruction do (addsd xmm0, ds:__xmm@41f00000000000000000000000000000[edx*8])?
Nov 05, 2022
assembly
x86
sse
Why doesn't the JVM emit prefetch instructions on Windows x86
May 15, 2022
java
assembly
x86
jvm
jvm-hotspot
How many 1-byte NOPs can Skylake execute at one cycle
Nov 20, 2022
assembly
optimization
x86
alignment
nop
What is the "EU" in x86 architecture? (calculates effective address?)
Jun 28, 2018
assembly
x86
cpu-architecture
I'm not exactly sure what this x86 Add instruction is doing
Oct 25, 2022
assembly
x86
addressing-mode
128-bit shifts using assembly language?
Apr 12, 2022
performance
assembly
x86
128-bit
KVM shadow page table handling in x86 platform
Feb 17, 2017
linux
linux-kernel
x86
virtualization
kvm
Why does GCC generate a faster program than Clang in this recursive Fibonacci code?
May 17, 2022
c++
gcc
x86
clang
compiler-optimization
What is the meaning of the data32 data32 nopw %cs:0x0(%rax,%rax,1) instruction in gcc inline asm?
Jul 04, 2019
c
gcc
assembly
optimization
x86
How Does BIOS initialize DRAM?
Aug 30, 2022
post
assembly
x86
bios
How to convert a positive number to negative in assembly
Nov 14, 2022
assembly
x86
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