Assembly Language StepbyStep Programming with DOS and Linux 2nd Ed [Electronic resources]

MOV Move (Copy) Right Operand into Left Operand

Flags affected:

O D I T S Z A P C  OF: Overflow flag  TF: Trap flag AF: Aux carry
F F F F F F F F F  DF: Direction flag SF: Sign flag PF: Parity flag
<none>         IF: Interrupt flag ZF: Zero flag CF: Carry flag

Legal forms:

MOV r8,r8
MOV m8,r8
MOV r8,m8
MOV r8,i8
MOV m8,i8
MOV r16,r16
MOV m16,r16
MOV r16,m16
MOV m16,i16
MOV r16,i16
MOV r32,r32   386+
MOV m32,r32   386+
MOV r32,m32   386+
MOV r32,i32   386+
MOV m32,i32   386+
MOV sr,r16
MOV sr,m16
MOV r16,sr
MOV m16,sr

Examples:

MOV AL,BH
MOV EBX,EDI
MOV BP,ES
MOV ES,AX
MOV AX,0B800H
MOV ES:[BX],0FFFFH
MOV CX,[SI+Inset]

Notes:

This is perhaps the most used of all instructions. The flags are not affected.

r8 = AL AH BL BH CL CH DL DH        r16 = AX BX CX DX BP SP SI DI
sr = CS DS SS ES FS GS              r32 = EAX EBX ECX EDX EBP ESP ESI EDI
m8 = 8-bit memory data              m16 = 16-bit memory data
m32 = 32-bit memory data            i8 = 8-bit immediate data
i16 = 16-bit immediate data         i32 = 32-bit immediate data
d8 = 8-bit signed displacement      d16 = 16-bit signed displacement
d32 = 32-bit unsigned displacement