I/O Instructions (x86 Assembly Language Reference Manual)

x86 Assembly Language Reference Manual

I/O Instructions

The input/output instructions transfer data between the processor's I/O ports, registers, and memory.

Table 3–9 I/O Instructions


Solaris Mnemonic	Intel/AMD Mnemonic	Description
`in`	`IN`	read from a port
`ins`	`INS`	input string from a port
`insb`	`INSB`	input byte string from port
`insl`	`INSD`	input doubleword string from port
`insw`	`INSW`	input word string from port
`out`	`OUT`	write to a port
`outs`	`OUTS`	output string to port
`outsb`	`OUTSB`	output byte string to port
`outsl`	`OUTSD`	output doubleword string to port
`outsw`	`OUTSW`	output word string to port