beautypg.com

FUJITSU FR family 32-bit microcontroller instruction manuel CM71-00101-5E User Manual

Page 96

background image

72

CHAPTER 7 DETAILED EXECUTION INSTRUCTIONS

7.1

ADD (Add Word Data of Source Register to Destination
Register)

Adds word data in "Rj" to word data in "Ri", stores results to "Ri".

ADD (Add Word Data of Source Register to Destination Register)

Assembler format:

ADD Rj, Ri

Operation:

Ri + Rj

Ri

Flag change:

N :

Set when the MSB of the operation result is "1", cleared when the MSB is "0".

Z :

Set when the operation result is "0", cleared otherwise.

V :

Set when an overflow has occurred as a result of the operation, cleared otherwise.

C :

Set when a carry has occurred as a result of the operation, cleared otherwise.

Execution cycles:

1 cycle

Instruction format:

Example:

ADD R2, R3

N

Z

V

C

C

C

C

C

MSB

LSB

1

0

1

0

0

1

1

0

Rj

Ri

R2

R

3

1 2

3

4

5 6 7

8

8

7 6 5

4

3

2 1

N Z V C

CCR

R2

R

3

CCR

0 0 0 0

N Z V C

1 0 0 0

9 9 9 9

9 9 9 9

1 2

3

4

5 6 7

8

Before exec

u

tion

After exec

u

tion

In

s

tr

u

ction

b

it p

a

ttern : 1010 0110 0010 0011