A20.inc Boot.asm boot.bin build_boot.bat build_kernel.bat defs.h fat.c fat.h fat12.inc fdc.c fdc.h floppy.inc Floppy16.inc GDT.inc kernel.asm kernel.bin kernel.sys key.c key.h link.ld main.c pm.c pm.h scr.c scr.h stage2.asm stage2.bin stage2.sys start.asm stdio.inc str.c str.h