EM78P803B

8-bit Micro-controller

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2006/2/27

V1.3.5

0

0011

00rr

rrrr

03rr

XOR A,R

A

⊕ R → A

Z

0

0011

01rr

rrrr

03rr

XOR R,A

A

⊕ R → R

Z

0

0011

10rr

rrrr

03rr

ADD A,R

A + R

→ A

Z, C, DC

0

0011

11rr

rrrr

03rr

ADD R,A

A + R

→ R

Z, C, DC

0

0100

00rr

rrrr

04rr

MOV A,R

R

→ A

Z

0

0100

01rr

rrrr

04rr

MOV R,R

R

→ R

Z

0

0100

10rr

rrrr

04rr

COMA R

/R

→ A

Z

0

0100

11rr

rrrr

04rr

COM R

/R

→ R

Z

0

0101

00rr

rrrr

05rr

INCA R

R+1

→ A

Z

0

0101

01rr

rrrr

05rr

INC R

R+1

→ R

Z

0

0101

10rr

rrrr

05rr

DJZA R

R-1

→ A, skip if zero

None

0

0101

11rr

rrrr

05rr

DJZ R

R-1

→ R, skip if zero

None

0

0110

00rr

rrrr

06rr

RRCA R

R(n)

→ A(n-1)

R(0)

→ C, C → A(7)

C

0

0110

01rr

rrrr

06rr

RRC R

R(n)

→ R(n-1)

R(0)

→ C, C → R(7)

C

0

0110

10rr

rrrr

06rr

RLCA R

R(n)

→ A(n+1)

R(7)

→ C, C → A(0)

C

0

0110

11rr

rrrr

06rr

RLC R

R(n)

→ R(n+1)

R(7)

→ C, C → R(0)

C

0

0111

00rr

rrrr

07rr

SWAPA R

R(0-3)

→ A(4-7)

R(4-7)

→ A(0-3)

None

0

0111

01rr

rrrr

07rr

SWAP R

R(0-3)

↔ R(4-7)

None

0

0111

10rr

rrrr

07rr

JZA R

R+1

→ A, skip if zero

None

0

0111

11rr

rrrr

07rr

JZ R

R+1

→ R, skip if zero

None

0

100b

bbrr

rrrr

0xxx

BC R,b

0

→ R(b)

None

0

101b

bbrr

rrrr

0xxx

BS R,b

1

→ R(b)

None

0

110b

bbrr

rrrr

0xxx

JBC R,b

if R(b)=0, skip

None

0

111b

bbrr

rrrr

0xxx

JBS R,b

if R(b)=1, skip

None

1

00kk

kkkk

kkkk

1kkk

CALL k

PC+1

→ [SP]

(Page, k)

→ PC

None

1

01kk

kkkk

kkkk

1kkk

JMP k

(Page, k)

→ PC

None

1

1000

kkkk

kkkk

18kk

MOV A,k

k

→ A

None

1

1001

kkkk

kkkk

19kk

OR A,k

A

∨ k → A

Z

1

1010

kkkk

kkkk

1Akk

AND A,k

A & k

→ A

Z

1

1011

kkkk

kkkk

1Bkk

XOR A,k

A

⊕ k → A

Z

1

1100

kkkk

kkkk

1Ckk

RETL k

k

→ A, [Top of Stack] → PC

None

1

1101

kkkk

kkkk

1Dkk

SUB A,k

k-A

→ A

Z, C, DC

1

1110

0000

0001

1E01

INT

PC+1

→ [SP]

001H

→ PC

None

1

1110

1000

kkkk

1E8k

PAGE k

K->R5

None

1

1111

kkkk

kkkk

1Fkk

ADD A,k

k+A

→ A

Z, C, DC

VII.9 System Option

VII.9.1 CODE Option Register

The IC has one CODE option register which is not part of the normal program memory. The option bits cannot

be accessed during normal program execution and can be set when downloading the program code.