16 bit Assembly

Home   Site Map   Instruction Index  


OUT   - Output Instruction

The OUT instruction is used to output data from AL or AX to a Port or an Address. This instruction is typically used with a CX counter and LOOP to repeat the task multiple times.

This command can have 1 or 2 parts.

Assembly Sample Description   16 bit
Machine Code
OUT 0x03;  Output a byte from AL to 8 bit I/O address   E6 03
OUT 0x03;  Output a word from AX to 8 bit I/O address   E7 03
OUT;  Output a byte from AL to Port DX   EE
OUT;  Output a word from AX to Port DX   EF




Last Update 06/02/2023