7906 datasheet(477/531 Pages) RENESAS

477 / 531 page

L(DIR), Y

Function

Operation

length (Bit)

Addressing Modes

op n #

IMP

IMM

DIR

DIR, X DIR, Y (DIR) (DIR, X) (DIR), Y

Symbol

L(DIR)

op n #

op n # op n # op n #

op n #

APPENDIX

Appendix 6. Machine instructions

7906 Group User’s Manual Rev.2.0

20-72

→ b15 … b0 →C

→ b7 … b0 →C

→ b15 … b0 →C

→ b7 … b0 →C

Logical shift to the right by n bits (n =

0 to 15)

m = 0

m = 1

Logical shift to the right by 1 bit

m = 0

Acc or M16

m = 1

AccL or M8

89 11 2

←IMM8

LDT

31 4 3

←M

LDX

(Note 8)

C6 1 2

02 3 2

41 5 3

←M

LDY

(Note 8)

D6 1 2

12 3 2 41 5 3

←M32

LDAD

LDD n

(Notes 11

and 12)

LDXB

←IMM8 (Extension zero)

8A 6 2 8B 7 2

11 9 3

11 10 3

88 9 2 11 11 3

2C 3 5

B8 11 2

?0 + +

2 i 2 i

B8 13 4

27 1 2

DPRn

←IMM16

(n = 0 to 3. Multiple DPRs can

be specified.)

LDYB

←IMM8 (Extension zero)

37 1 2

LSR

(Note 1)

21 8 3

43 1 1 21 7 3

81 2 2

LSR #n

(Note 4)

LSRD #n

(Note 4)

C1 6 2

imm

D1 8 2

imm

16/8

Logical shift to the right by n bits (n =

0 to 31)

→ b31 … b0 →C

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