Data transfer instructions

1.	Data transfer instructions
Answer» Data Transfer Instructions : The MOV instruction is used to transfer a byte or a word of data from a source operand to a destination operand. These operands can be internal registers of the 8086 and storage locations in memory. Mnemonic Meaning Format Operation Flags affected MOV Move MOV D, S (S) → (D) N o n e 28 Destination Source Example Memory Accumulator MOV TEMP, AL Accumulator Memory MOV AX, TEMP Register Register MOV AX, BX Register Memory MOV BP, Stack top Memory Register MOV COUNT [DI], CX Register Immediate MOV CL, 04 Memory Immediate MOV MASK [BX] [SI], 2F Seg. Register Reg 16 MOV ES, CX Seg. Register Mem 16 MOV DS, Seg base (Word Operation) Reg 16 SegReg MOV BP SS (Word Operation) Memory 16 SegReg MOV [BX], CS MOV instruction cannot transfer data directly between a source and a destination that both reside in external memory

Answer»

Data Transfer Instructions :

The MOV instruction is used to transfer a byte or a word of data from a source operand to a destination operand. These operands can be internal registers of the 8086 and storage locations in memory.

Mnemonic Meaning Format Operation Flags affected

MOV Move MOV D, S (S) → (D) N o n e

Destination Source Example

Memory Accumulator MOV TEMP, AL

Accumulator Memory MOV AX, TEMP

Memory Register MOV COUNT [DI], CX

Memory Immediate MOV MASK [BX] [SI], 2F

Seg. Register Reg 16 MOV ES, CX

Seg. Register Mem 16 MOV DS, Seg base

(Word Operation) Reg 16 SegReg MOV BP SS

(Word Operation) Memory 16 SegReg MOV [BX], CS

MOV instruction cannot transfer data directly between a source and a destination that both reside in external memory

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