INS - INSB - INSW - INSD

INS - Input String from Port (80186+)

Loads data from port to the destination ES:(E)DI (even if a destination operand is supplied). (E)DI is adjusted by the size of the operand and increased if the Direction Flag is cleared and decreased if the Direction Flag is set.

For INSB, INSW, INSD no operands are allowed and the size is determined by the mnemonic.

see also OUTS

Usage:

	INS	dest,port
	INSB 
	INSW
	INSD			; (386+ only)

Modifies flags:

none

Clocks Size
Operands 808x 286 386 486 Bytes
dest,port - 5 15 17 1
dest,port (PM) - 5 9-29 10/32/30 1
none - 5 15 17 1
none (PM) 86-104 5 9/29 10/32/30 1

386+ protected mode timings depend on privilege levels.

first number is the timing if: CPL ó IOPL

second number is the timing if: CPL > IOPL

third number is the timing if: virtual mode on 486 processor