MOV

The MOV instruction moves data bytes between the two specified operands. The byte specified by the second operand is copied to the location specified by the first operand. The source data byte is not affected.

See Also: MOVC, MOVX

MOV @Rn, #immediate

RS1

RS0

Bytes

Cycles

Encoding

0111011n

immediate

Operation

MOV
(Rn) = immediate

Example

MOV @R0, #0

MOV @Ri, A

RS1

RS0

Bytes

Cycles

Encoding

1111011i

Operation

MOV
(Ri) = A

Example

MOV @R0, A

MOV @Ri, direct

RS1

RS0

Bytes

Cycles

Encoding

1010011i

direct

Operation

MOV
(Ri) = (direct)

Example

MOV @R1, P2

MOV A, #immediate

RS1

RS0

Bytes

Cycles

Encoding

01110100

immediate

Operation

MOV
A = immediate

Example

MOV A, #0FFh

MOV A, @Ri

RS1

RS0

Bytes

Cycles

Encoding

1110011i

Operation

MOV
A = (Ri)

Example

MOV A, @R1

MOV A, direct

RS1

RS0

Bytes

Cycles

Encoding

11100101

direct

Operation

MOV
A = (direct)

Example

MOV A, P0

MOV A, Rn

RS1

RS0

Bytes

Cycles

Encoding

11101nnn

Operation

MOV
A = Rn

Example

MOV A, R6

MOV bit, C

RS1

RS0

Bytes

Cycles

Encoding

10010010

bit

Operation

MOV
(bit) = C

Example

MOV 22h, C

MOV C, bit

RS1

RS0

Bytes

Cycles

Encoding

10100010

bit

Operation

MOV
C = (bit)

Example

MOV C, 22h

MOV dest_direct, src_direct

RS1

RS0

Bytes

Cycles

Encoding

10000101

src_direct

dest_direct

Operation

MOV
(dest_direct) = (src_direct)

Example

MOV P1, P0

MOV direct, #immediate

RS1

RS0

Bytes

Cycles

Encoding

01110101

direct

immediate

Operation

MOV
(direct) = immediate

Example

MOV P2, #0FFh

MOV direct, @Rn

RS1

RS0

Bytes

Cycles

Encoding

1000011n

direct

Operation

MOV
(direct) = (Rn)

Example

MOV P0, @R1

MOV direct, A

RS1

RS0

Bytes

Cycles

Encoding

11110101

direct

Operation

MOV
(direct) = A

Example

MOV P0, A

MOV direct, Rn

RS1

RS0

Bytes

Cycles

Encoding

10001nnn

direct

Operation

MOV
(direct) = Rn

Example

MOV P2, R5

MOV DPTR, #immediate

RS1

RS0

Bytes

Cycles

Encoding

10010000

immediate_15-8

immediate_7-0

Operation

MOV
DPTR = immediate

Example

MOV DPTR, #1234h

MOV Rn, #immediate

RS1

RS0

Bytes

Cycles

Encoding

01111nnn

immediate

Operation

MOV
Rn = immediate

Example

MOV R4, #0h

MOV Rn, A

RS1

RS0

Bytes

Cycles

Encoding

11111nnn

Operation

MOV
Rn = A

Example

MOV R5, A

MOV Rn, direct

RS1

RS0

Bytes

Cycles

Encoding

10101nnn

direct

Operation

MOV
Rn = (direct)

Example

MOV R4, P1

MOV

MOV