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New posts in x86-64
gfortran for dummies: What does mcmodel=medium do exactly?
Jan 16, 2015
memory-management
fortran
x86-64
gfortran
intel
Why does int 3 generate a SIGSEGV in 64-bit instead of stopping the debugger?
Jan 01, 2022
debugging
assembly
signals
x86-64
intel
Negative clock cycle measurements with back-to-back rdtsc?
Aug 28, 2022
c
x86-64
inline-assembly
overhead
rdtsc
When to do or not do INVLPG, MOV to CR3 to minimize TLB flushing
Nov 07, 2022
x86
paging
x86-64
virtual-memory
tlb
What is the 'shadow space' in x64 assembly?
Dec 05, 2021
windows
assembly
x86-64
calling-convention
abi
intel
How does this C program without libc work?
Sep 11, 2022
c
assembly
x86-64
system-calls
abi
Difference in position-independent code: x86 vs x86-64
Sep 05, 2022
c
linux
x86
x86-64
elf
Converting llvm .bc file to human readable .ll file
Jul 06, 2021
c
linux
llvm
clang
x86-64
difference between MMX and XMM register?
Sep 05, 2022
assembly
x86
x86-64
sse
mmx
Why doesn't GCC use partial registers?
Apr 21, 2021
assembly
gcc
x86
x86-64
cpu-architecture
Benefits of x87 over SSE
Aug 22, 2022
x86
x86-64
sse
fpu
x87
Unexpectedly poor and weirdly bimodal performance for store loop on Intel Skylake
Oct 07, 2021
performance
assembly
optimization
x86
x86-64
What does the R stand for in RAX, RBX, RCX, RDX, RSI, RDI, RBP, RSP? [duplicate]
Sep 04, 2022
assembly
x86
x86-64
cpu-registers
cpu-architecture
intel
What are _mm_prefetch() locality hints?
Sep 13, 2022
c++
x86-64
intrinsics
cpu-cache
prefetch
How to save the registers on x86_64 for an interrupt service routine?
Sep 04, 2022
assembly
x86-64
isr
Are there benefits to running X86-64 Python on a 64-bit CPU in a 64-bit OS?
Sep 04, 2022
python
windows-7
64-bit
x86-64
Why are signed and unsigned multiplication different instructions on x86(-64)?
Sep 22, 2022
assembly
x86
x86-64
twos-complement
intel
"Unexplainable" core dump
Mar 04, 2022
linux
segmentation-fault
x86-64
Why does this function push RAX to the stack as the first operation?
Sep 04, 2022
c++
assembly
x86
x86-64
abi
movq assembly function
Sep 04, 2022
assembly
x86-64
att
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