I am learning x86 assembly using Nasm on Linux(Debian 12). I already know what is stack, so I thought when we code in assembly, we implement it ourselves. But I saw instructions like push and pop which are meant for…
I am getting this error deterministically and immediately every time I run the code below. I am trying to use libcurl that I have built from source using nmap and using the recommended procedure and interestingly enough, I am able…
Description I created a sample to study the TLB access/misses statistics. Sample writes 1 to every 4096-th element of the array. Array has 10'000 * 4096 bytes. I expect to see 10'000 TLB stores only, but generated assembly loads beginning…
I downloaded (mdldec_linux_amd64) and (mdldec_linux_i386) and placed them somewhere in cPanel / Files Manager / HTML folder How to call this program from Call.PHP ? I try something like below shell_exec ("mdldec_linux_amd64 parameter1 parameter2"); can someone help me on this?
There is a recent publication at nature.com, Faster sorting algorithms discovered using deep reinforcement learning, where it talks about AlphaDev discovering a faster sorting algorithm. This caught my interest, and I've been trying to understand the discovery. Other articles about…
My server and docker info. are as follows: Linux xxx 3.10.0-1160.66.1.el7.x86_64 #1 xxx x86_64 x86_64 x86_64 GNU/Linux Docker version 20.10.17 Client: Context: default Debug Mode: false Plugins: app: Docker App (Docker Inc., v0.9.1-beta3) buildx: Docker Buildx (Docker Inc., v0.8.2-docker) scan:…
I was taking a look at this Github project: https://github.com/LloydLabs/delete-self-poc This project uses the SetFileInformationByHandle API (https://learn.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-setfileinformationbyhandle) in a somewhat creative way to allow the deletion from disk of a locked file. I am attempting to implement this as part…
I am NOT a programmer but a System Integrator with experience since DOS I bought a used Barebone PC and it has some minor issues: It is sometimes crashing, which is not connected to the RAM its running debian KVM…
Even I get an warning a function returns an address from local variable, it compiles. Isn't it then UB of compiler? The generated assembly: .text .LC0: .asciz "%in" .globl foo .type foo, @function foo: pushq %rbp # movq %rsp, %rbp…
I am trying to write to Extended Control Register 0 (xcr0) on an x86_64 Debian v7 virtual machine. My approach to doing so is through a kernel module (so CPL=0) with some inline assembly. However, I keep getting a general…