Intel 210200-002 manual Flag, 1111111001

CLD	CLEAR DIRECTION	CLD
	FLAG
Operation:	Flags Affected:
(DF)~ 0	DF

Description:

CLD (Clear Direction flag) zeroes DF causing the string instructions to auto-increment the SI and/or DI index registers. CLD does not affect any other flags.

Encoding:

1111111001

CLD Operands Clocks Transfers Bytes CLD Coding Example

(no operands) 2 - 1 CLD

2-63