movl $0x80000b80, %eax movw $0xcf8, %dx outl %eax, %dx movl $0x1001, %eax movw $0xcfc, %dx inb %al, %dx orb $1, %al outb %al, %dx movl $0x80000b40, %eax movw $0xcf8, %dx outl %eax, %dx movl $0x1001, %eax movw $0xcfc, %dx outl %eax, %dx movw $0x2000, %ax movw $0x1004, %dx outw %ax, %dx