/// Write a byte to the specified portpub unsafe fn outb(port: u16, val: u8){	asm!("outb %al, %dx" : : "{dx}"(port), "{al}"(val));} /// Read a single byte from the specified portpub unsafe fn inb(port: u16) -> u8{	let ret : u8;	asm!("inb %dx, %al" : "={ax}"(ret) : "{dx}"(port));	return ret;} /// Write a word (16-bits) to the specified portpub unsafe fn outw(port: u16, val: u16){	asm!("outw %ax, %dx" : : "{dx}"(port), "{al}"(val));} /// Read a word (16-bits) from the specified portpub unsafe fn inw(port: u16) -> u16{	let ret : u16;	asm!("inw %dx, %ax" : "={ax}"(ret) : "{dx}"(port));	return ret;} /// Write a long/double-word (32-bits) to the specified portpub unsafe fn outl(port: u16, val: u32){	asm!("outl %eax, %dx" : : "{dx}"(port), "{al}"(val));} /// Read a long/double-word (32-bits) from the specified portpub unsafe fn inl(port: u16) -> u32{	let ret : u32;	asm!("inl %dx, %eax" : "={ax}"(ret) : "{dx}"(port));	return ret;}