6. The MOV Instruction with Addressing Modes

MOV instruction is a copy instruction.

MOV copies the source operand to the destination operand without affecting the source.

    ; Immediate value moves
            mov     ax, 7       ; Immediate to register
            mov     mem, 7      ; Immediate to memory direct
            mov     mem[bx], 7  ; Immediate to memory indirect 

    ; Register moves
            mov     mem, ax     ; Register to memory direct
            mov     mem[bx], ax ; Register to memory indirect
            mov     ax, bx      ; Register to register
            mov     ds, ax      ; General register to segment register

    ; Direct memory moves
            mov     ax, mem     ; Memory direct to register
            mov     ds, mem     ; Memory to segment register

    ; Indirect memory moves
            mov     ax, mem[bx] ; Memory indirect to register
            mov     ds, mem[bx] ; Memory indirect to segment register

    ; Segment register moves
            mov     mem, ds     ; Segment register to memory
            mov     mem[bx], ds ; Segment register to memory indirect
            mov     ax, ds      ; Segment register to general register

    ; Move immediate to segment register
            mov     ax, DGROUP  ; Load AX with immediate value
            mov     ds, ax      ; Copy AX to segment register

    ; Move memory to memory
            mov     ax, mem1    ; Load AX with memory value
            mov     mem2, ax    ; Copy AX to other memory

    ; Move segment register to segment register
            mov     ax, ds      ; Load AX with segment register
            mov     es, ax      ; Copy AX to segment register