// PROJECT · BOOT & KERNEL

SimpleRealModeBootLoader

A minimalistic 16-bit real mode bootloader in x86 Assembly. Demonstrates BIOS interrupt interface, segment:offset addressing, disk sector loading via INT 0x13, and protected mode transition.

View source on GitHub ↗
  • Assembly
  • x86
  • NASM
  • QEMU
  • BIOS

The first 512 bytes that run when the machine powers on. This bootloader walks through x86 real mode: the BIOS interrupt interface, segment:offset addressing, loading additional sectors from disk via INT 0x13, and the transition into protected mode.

SOURCE CODEgithub.com/harshithsunku/SimpleRealModeBootLoaderOpen on GitHub ↗

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