Intel 210200-002 manual Load Pointer Using ES LES, LES destination, source

LES	LOAD POINTER USING ES LES
Operation:		Flags Affected:
(REG) +- (EA)		None
(ES) +- (EA + 2)

Description:

LES destination, source

LES (load pointer using ES) transfers a 32-bit pointer variable from the source operand, which must be a memory operand, to the des- tination operand and register ES. The offset word of the pointer is transferred to the des- tination operand, which may be any· 16-bit general register. The segment word of the

pointer is transferred to register ES. Specifying DI as the destination operand is a convenient way to prepare to process a destination string that is not in the current extra segment. (The destination string must be located in the extra segment, and DI must contain the offset of the string.)

Encoding:

111000100 1mod reg rIm 1

if mod = 11 then undefined operation

LES Operands	Clocks	Transfers	Bytes	LES Coding Example
reg16, mem32	24+EA	2	2-4	LES DI,[BX].TEXT_BUFF

2-110