@echo off fasm kernel\boot\bootx64.asm fasm kernel\kernel64.asm if errorlevel 1 ( echo build failed exit /b 1 ) rd /s /q image mkdir image\EFI\BOOT copy kernel\boot\bootx64.efi image\EFI\BOOT\BOOTX64.EFI copy kernel\kernel64.bin image\EFI\KERNEL64.BIN qemu-system-x86_64 -cpu qemu64 -bios OVMF.fd -drive driver=vvfat,rw=on,dir=image\