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New posts in x86
128-bit values - From XMM registers to General Purpose
Dec 07, 2021
assembly
x86
sse
Why does DOS set the SP register to 0xFFFE after loading a .COM file?
Oct 30, 2022
assembly
x86
dos
x86-16
callstack
Concrete example of incorrect behavior of an early-clobber affecting a memory operand's addressing mode in GCC inline asm?
Sep 07, 2022
assembly
gcc
x86
inline-assembly
register-allocation
Is it possible to use 32 bits registers/instructions in real mode?
Nov 15, 2022
assembly
x86
operating-system
real-mode
Slow jmp-instruction
Oct 16, 2022
assembly
x86
intel
cpu-architecture
branch-prediction
Why does cmp 0x84,0x30 trigger the overflow flag?
Nov 14, 2022
assembly
x86
eflags
signed-overflow
Custom bootloader booted via USB drive produces incorrect output on some computers
Mar 28, 2022
assembly
x86
bootloader
bios
usb-drive
Fastest Implementation of Exponential Function Using AVX
Sep 14, 2019
x86
simd
avx
exponential
avx2
Why linux kernel use trap gate to handle divide_error exception?
Oct 19, 2022
linux
x86
kernel
interrupted-exception
What meaning, if any, does the Mod R/M byte carry for the unconditional jump instruction 0xFF?
Oct 17, 2022
assembly
x86
What parts of this HelloWorld assembly code are essential if I were to write the program in assembly?
Aug 30, 2022
c
linux
assembly
x86
Why calls when jmps would suffice?
Aug 26, 2022
c
gcc
assembly
x86
What does JS do in Assembly x86?
Sep 30, 2022
assembly
x86
att
masm division overflow
Oct 04, 2013
assembly
x86
masm
#include header with C declarations in an assembly file without errors?
Jan 06, 2020
c
gcc
assembly
include
x86
Why INC and ADD 1 have different performances? [duplicate]
Dec 08, 2019
optimization
assembly
x86
hardware
cpu-architecture
How to get opcodes of a c program
Apr 09, 2022
c
linux
assembly
x86
opcode
Testing equality between two __m128i variables
May 20, 2021
c
x86
sse
simd
Does a branch misprediction flush the entire pipeline, even for very short if-statement body?
Aug 24, 2022
performance
x86
branch
cpu-architecture
branch-prediction
How to properly use prefetch instructions?
Oct 26, 2022
caching
x86
sse
prefetch
dot-product
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