X86-mov

In the X86 assembly language, the MOV instruction moves data from Y to X when coded as

MOV X, Y

Either X or Y can include addressing information.

The arguments for the MOV commands can be either a register, segment register or a memory address. since the command is executed in a single CPU work cycle, not all combinations of arguments are possible. possible combinations:

move the content of the register bx into the register ax

MOV ax, bx

move the content of the register ax into the memory block with the specified address

MOV [address], ax

A combination which is not possible, is a move from memory to memory, for example :

MOV [address1], [address2]

to achieve this, another MOV must be used:

MOV ax, [address2]

MOV [address1], ax