All symbols starting with `o' in arch/i386/netboot

• o arch/i386/netboot/makefile:41
• opsize arch/i386/netboot/asm.h:167
• OUTB arch/i386/netboot/asm.h:73
• OUTL arch/i386/netboot/asm.h:75
• outw arch/i386/netboot/proto.h:95