MASM Bootloader

This is a minimal 16 bit, real mode bootloader written in MASM! Please note that if you are attempting to write a bootloader in MASM, I would not recommend doing so, use NASM instead, for it is infinitely easier.

Compiling

To compile you must set your MASM compiler onto your PATH, I recommend to use MASM615 or equivalent.

ML.EXE /nologo /AT /c bootload.asm

LINK.EXE /nologo /TINY /NOD bootload.obj, bootload.bin, NUL, NUL, NUL

Resources

• OSDev Is a great website for any Hobby OS developer.
• MASM Used for the bootloader.
• NASM Please use this instead of MASM.
• imdisk & dd To write the operating system files to a floppy image.
• QEMU Image emulator for testing the os.