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New posts in cpu-registers
Running multiple processes on a single CPU
Oct 27, 2025
process
operating-system
cpu
cpu-registers
how can 2 assembly programs use the same register
Oct 25, 2025
assembly
cpu-registers
Is it valid for the Stack Pointer and Frame pointer to point to the same address in ARM 64?
Oct 24, 2025
assembly
cpu-registers
arm64
stack-frame
stack-pointer
Difference between ARM ADD with 2 or 3 operands?
Oct 25, 2025
assembly
syntax
arm
addition
cpu-registers
In x86_64, does a 32-bit cmov clear the top bits if the condition is false?
Oct 23, 2025
assembly
x86-64
cpu-registers
conditional-move
Why Assembly x86_64 syscall parameters are not in alphabetical order like i386
Oct 22, 2025
assembly
x86
x86-64
cpu-registers
calling-convention
Performance comparison: 64 bit and 32 bit multiplication [closed]
Oct 23, 2025
c
performance
cpu
cpu-registers
Meaning of XMM register values shown in Visual Studio debugger's register window
Oct 19, 2025
visual-studio
sse
visual-studio-debugging
cpu-registers
Why does Windows use RCX, RDX for pointers in a fresh x64 process, different from EAX, EBX in a newly created 32-bit process?
Oct 18, 2025
windows
assembly
x86-64
32bit-64bit
cpu-registers
Meaning of pc in gdb (alias?)
Oct 14, 2025
assembly
gcc
gdb
cpu-registers
program-counter
Are "Protection rings" and "CPU modes" the same thing?
Oct 17, 2025
operating-system
cpu
cpu-architecture
cpu-registers
What's the advantage of having nonvolatile registers in a calling convention?
Oct 14, 2025
assembly
x86-64
cpu-architecture
cpu-registers
calling-convention
Why do we use sub esp, 4 instead of push a register in assembly?
Sep 18, 2025
assembly
optimization
x86
stack
cpu-registers
Why the %r0 of SPARC or MIPS, is always 0?
Sep 16, 2025
assembly
mips
cpu-architecture
cpu-registers
sparc
What does the gdb 'x' command do?
Sep 10, 2025
memory
assembly
gdb
cpu-registers
How to force an unused memory read in C that won't be optimized away?
Sep 09, 2025
c
embedded
microcontroller
volatile
cpu-registers
What is the difference between "mov (%rax),%eax" and "mov %rax,%eax"?
Mar 12, 2023
assembly
x86
x86-64
cpu-registers
Swap most significant byte and least significant byte in assembler
Mar 11, 2023
assembly
x86
byte
cpu-registers
Do the x86 segment registers have special meaning/usage on modern CPUs and OSes?
Feb 14, 2023
x86
history
cpu-registers
memory-segmentation
Why are x86 registers named the way they are?
Sep 02, 2025
assembly
x86
naming
history
cpu-registers
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