16 bit Assembly

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IN   - Input Instruction

The IN instruction is used to input data from a Port to a Register. This instruction is typically used with a CX counter and LOOP to repeat the task multiple times.

This command can have 1 or parts.

Assembly Sample	Description	16 bit Machine Code
IN 0x03	;  Input a byte from an 8 bit address into AL	E4 03
IN 0x03	;  Input a word from an 8 bit address into AL	E5 03
IN	;  Input a byte at Port DX into AL	EC
IN	;  Input a word at Port DX into AX	ED

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Last Update 06/02/2023