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LEA  -  Stores Address Instruction


The LEA instruction is used to store the effective address in a Register. Segment registers cannot be used.

This command has 3 parts, Instruction, Register, 16 bit memory address.



LEA using a memory address

Assembly
Sample
Description
MOV BX, 0x0345;  Assign the memory address of the Pointer
or
MOV BX, DataAddress;  Assign the memory address of the Pointer
LEA AX, [BX];  Call LDS


Alternate method

Assembly
Sample
Description
MOV AX, 0x0005;  Assign the memory address to a Register
MOV AX, DataAddress;  Assign the memory address using a Register


Assembly
Sample
Description   16 bit Machine
  Code
LES AX, [BX];  Save the memory address in the Register   8D 07