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New posts in osdev
Bootloader receives a disk read error when booting on real hardware but not on vmware, qemu, and bochs
Mar 14, 2026
assembly
x86
nasm
bootloader
osdev
Assemble 32 bit mode instructions in elf64 format with GCC (gas/as)
Mar 14, 2026
assembly
gcc
x86
osdev
gnu-assembler
Kernel.c not executing complete code [OS from scratch]
Mar 06, 2026
assembly
x86
kernel
bootloader
osdev
PCI Address Spaces
Feb 28, 2026
osdev
pci
Masm string variable inside bootloader causes: Undefined symbol error
Feb 25, 2026
assembly
x86
masm
bootloader
osdev
Using OUTB to set cursor position in my minimal OS kernel causes QEMU screen to flicker
Jan 30, 2026
c
assembly
x86
qemu
osdev
Include contents of char array in flat binary file
Jan 26, 2026
c
assembly
embedded
inline-assembly
osdev
Interrupt handler on C doesn't work after one interrupt [duplicate]
Jan 25, 2026
c
gcc
assembly
interrupt-handling
osdev
Load segment from floppy with int13h
Jan 20, 2026
assembly
nasm
x86-16
bootloader
osdev
Protected Mode Addressing
Jan 03, 2026
assembly
x86
nasm
bootloader
osdev
Custom Bootloader Fails to Load C Kernel (kernel.c), But Works with Assembly (kernel.asm)
Dec 19, 2025
assembly
x86
kernel
bootloader
osdev
INT 13, AH=42h fails with AH=1, CF=1
Dec 15, 2025
assembly
x86
qemu
bootloader
osdev
Does AMD support x2APIC?
Dec 10, 2025
x86
cpu
osdev
amd-processor
apic
How to set up a new stack segment for programs in x86 to separate from my kernel?
Dec 10, 2025
assembly
x86
stack
osdev
segments
how to use `dlsym()` in Rust [duplicate]
Dec 08, 2025
rust
function-pointers
osdev
Creating a FAT partition with a bootsector as an MBR
Nov 28, 2025
assembly
x86
osdev
fat
mbr
Do modern computers boot in real mode or virtual real mode?
Nov 28, 2025
x86
kernel
bootloader
osdev
multiboot
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