Rabbit 2000 Reference guide

Rabbit 2000/3000Microprocessor

Instruction Reference Manual

019–0098 C • 020416

This manual (or an even more up-to-date revision) is available for free download

at the Rabbit website: www.rabbitsemiconductor.com

ii Rabbit 2000/3000 Microprocessor

Instruction Reference Manual iii

Table of Contents

1. AlphabeticalListingofInstructions.......................................1

2. InstructionsListedbyGroup ...........................................3

3. DocumentConventions ...............................................7

4. ProcessorRegisters.................................................11

5. OpCodeDescriptions................................................13

6. QuickReferenceTable..............................................111

iv Rabbit 2000 Microprocessor

Instruction Reference Manual 1

1. Alphabetical Listing of Instructions

A

ADC A,n ..............................14

ADC A,r ..............................14

ADC A,(HL) .........................13

ADC A,(IX+d) ......................13

ADC A,(IY+d) ......................13

ADC HL,ss ...........................15

ADD A,n ..............................16

ADD A,r ..............................16

ADD A,(HL) .........................15

ADD A,(IX+d) ......................15

ADD A,(IY+d) ......................15

ADD HL,ss ...........................17

ADD IX,xx ...........................18

ADD IY,yy ...........................18

ADD SP,d ............................18

ALTD ..................................19

AND HL,DE .........................21

AND IX,DE ..........................21

AND IY,DE ..........................21

AND n .................................22

AND r .................................22

AND (HL) ............................20

AND (IX+d) .........................20

AND (IY+d) .........................20

B

BIT b,r .................................24

BIT b,(HL) ...........................23

BIT b,(IX+d) .........................23

BIT b,(IY+d) .........................23

BOOL HL ............................24

BOOL IX .............................25

BOOL IY .............................25

C

CALL mn .............................25

CCF ....................................26

CP n ....................................27

CP r .....................................27

CP (HL) ...............................26

CP (IX+d) ............................26

CP (IY+d) ............................26

CPL .....................................28

D

DEC IX ................................29

DEC IY ................................29

DEC r ..................................29

DEC ss .................................30

DEC (HL) ............................28

DEC (IX+d) ..........................28

DEC (IY+d) ..........................28

DJNZ e ................................30

E

EX AF,AF' ...........................32

EX DE',HL ...........................32

EX DE,HL ............................32

EX (SP),HL ..........................31

EX (SP),IX ...........................31

EX (SP),IY ...........................31

EXX ....................................33

I

INC IX .................................34

INC IY .................................34

INC r ...................................34

INC ss .................................35

INC (HL) .............................33

INC (IX+d) ...........................33

INC (IY+d) ...........................33

IOE .....................................36

IOI ......................................36

IPRES ..................................38

IPSET 0 ...............................37

IPSET 1 ...............................37

IPSET 2 ...............................37

IPSET 3 ...............................37

J

JP f,mn ................................40

JP mn ..................................39

JP (HL) ................................39

JP (IX) .................................39

JP (IY) .................................39

JR cc,e .................................41

JR e .....................................41

L

LCALL x,mn ........................42

LD A,EIR .............................50

LD A,IIR ..............................50

LD A,XPC ............................50

LD A,(BC) ...........................49

LD A,(DE) ...........................49

LD A,(mn) ............................49

LD dd',BC ............................51

LD dd',DE ............................51

LD dd,mn .............................52

LD dd,(mn) ...........................51

LD EIR,A .............................52

LD HL,IX .............................54

LD HL,IY .............................54

LD HL,(HL+d) ......................53

LD HL,(IX+d) .......................53

LD HL,(IY+d) .......................53

LD HL,(mn) ..........................53

LD HL,(SP+n) .......................54

LD IIR,A ..............................52

LD IX,HL .............................56

LD IX,mn .............................56

LD IX,(mn) ..........................55

LD IX,(SP+n) .......................55

LD IY,HL .............................56

LD IY,mn .............................56

LD IY,(mn) ..........................56

LD IY,(SP+n) .......................57

LD r,g ..................................60

LD r,n ..................................59

LD r,(HL) .............................58

LD r,(IX+d) ..........................58

LD r,(IY+d) ..........................58

LD SP,HL ............................61

LD SP,IX .............................61

LD SP,IY .............................61

LD XPC,A ............................61

LD (BC),A ...........................43

LD (DE),A ...........................43

LD (HL),n ............................43

LD (HL),r .............................43

LD (HL+d),HL ......................44

LD (IX+d),HL .......................45

LD (IX+d),n ..........................45

LD (IX+d),r ..........................45

LD (IY+d),HL .......................46

LD (IY+d),n ..........................46

LD (IY+d),r ..........................46

LD (mn),A ............................47

2 Rabbit 2000/3000 Microprocessor

LD (mn),HL ..........................47

LD (mn),IX ...........................47

LD (mn),IY ...........................47

LD (mn),ss ...........................47

LD (SP+n),HL .......................48

LD (SP+n),IX ........................48

LD (SP+n),IY ........................48

LDD ....................................62

LDDR ..................................62

LDI .....................................62

LDIR ...................................62

LDP HL,(HL) ........................65

LDP HL,(IX) .........................65

LDP HL,(IY) .........................65

LDP HL,(mn) ........................66

LDP IX,(mn) .........................66

LDP IY,(mn) .........................66

LDP (HL),HL ........................63

LDP (IX),HL .........................63

LDP (IY),HL .........................63

LDP (mn),HL ........................64

LDP (mn),IX .........................64

LDP (mn),IY .........................64

LJP x,mn ..............................67

LRET ..................................67

M

MUL ...................................68

N

NEG ....................................69

NOP ....................................69

O

OR HL,DE ...........................71

OR IX,DE ............................71

OR IY,DE ............................71

OR n ....................................72

OR r ....................................72

OR (HL) ...............................70

OR (IX+d) ............................70

OR (IY+d) ............................70

P

POP IP .................................73

POP IX ................................73

POP IY ................................73

POP zz .................................74

PUSH IP ..............................75

PUSH IX ..............................75

PUSH IY ..............................75

PUSH zz ..............................76

R

RA ......................................89

RES b,r ................................78

RES b,(HL) ...........................77

RES b,(IX+d) ........................77

RES b,(IY+d) ........................77

RET ....................................79

RET f ..................................80

RETI ...................................81

RL DE .................................83

RL r ....................................83

RL (HL) ...............................82

RL (IX+d) ............................82

RL (IY+d) ............................82

RLA ....................................84

RLC r ..................................86

RLC (HL) .............................85

RLC (IX+d) ..........................85

RLC (IY+d) ..........................85

RLCA ..................................86

RR DE .................................88

RR HL .................................88

RR IX ..................................88

RR IY ..................................88

RR r ....................................89

RR (HL) ...............................87

RR (IX+d) ............................87

RR (IY+d) ............................87

RRC r ..................................91

RRC (HL) ............................90

RRC (IX+d) ..........................90

RRC (IY+d) ..........................90

RRCA ..................................91

RST v ..................................92

S

SBC A,n ...............................94

SBC A,r ...............................94

SBC A,(HL) ..........................93

SBC HL,ss ............................95

SBC (IX+d) ..........................93

SBC (IY+d) ..........................93

SCF .....................................95

SET b,r ................................97

SET b,(HL) ...........................96

SET b,(IX+d) ........................96

SET b,(IY+d) ........................96

SLA r ..................................99

SLA (HL) .............................98

SLA (IX+d) ..........................98

SLA (IY+d) ..........................98

SRA r ................................101

SRA (HL) ...........................100

SRA (IX+d) ........................100

SRA (IY+d) ........................100

SRL r .................................103

SRL (HL) ...........................102

SRL (IX+d) ........................102

SRL (IY+d) ........................102

SUB n ................................104

SUB r ................................105

SUB (HL) ...........................104

SUB (IX+d) ........................104

SUB (IY+d) ........................104

X

XOR n ...............................107

XOR r ................................107

XOR (HL) ..........................106

XOR (IX+d) .......................106

XOR (IY+d) .......................106

Instruction Reference Manual 3

2. Instructions Listed by Group

A. Load Immediate Data

LD dd,mn ...............................52

LD IX,mn ................................56

LD IY,mn ................................56

LD r,n ...................................59

B. Load and Store to an Immediate Address

LD (mn),A ...............................47

LD (mn),HL ..............................47

LD (mn),IX ..............................47

LD (mn),IY ..............................47

LD (mn),ss ..............................47

LD A,(mn) ...............................49

LD dd,(mn) ..............................51

LD HL,(mn) ..............................53

LD IX,(mn) ..............................55

LD IY,(mn) ..............................56

C. 8-bit Indexed Load and Store

LD (BC),A ...............................43

LD (DE),A ...............................43

LD (HL),n ...............................43

LD (HL),r ................................43

LD (IX+d),n ..............................45

LD (IX+d),r ..............................45

LD (IY+d),n ..............................46

LD (IY+d),r ..............................46

LD A,(BC) ...............................49

LD A,(DE) ...............................49

LD r,(HL) ................................58

LD r,(IX+d) ..............................58

LD r,(IY+d) ..............................58

D. 16-bit Indexed Load and Store

LD (HL+d),HL ............................44

LD (IX+d),HL ............................45

LD (IY+d),HL ............................46

LD (SP+n),HL ............................48

LD (SP+n),IX ............................48

LD (SP+n),IY ............................48

LD HL,(HL+d) ............................53

LD HL,(IX+d) ............................53

LD HL,(IY+d) ............................53

LD HL,(SP+n) ............................54

LD IX,(SP+n) .............................55

LD IY,(SP+n) .............................57

E. 16-bit Load and Store to 20-bit Address

LDP (HL),HL .............................63

LDP (IX),HL ..............................63

LDP (IY),HL ..............................63

LDP (mn),HL .............................64

LDP (mn),IX .............................64

LDP (mn),IY .............................64

LDP HL,(HL) .............................65

LDP HL,(IX) ..............................65

LDP HL,(IY) ..............................65

LDP HL,(mn) .............................66

LDP IX,(mn) .............................66

LDP IY,(mn) .............................66

F. Register to Register Moves

LD A,EIR ................................50

LD A,IIR .................................50

LD A,XPC ...............................50

LD dd’,BC ...............................51

LD dd’,DE ...............................51

LD EIR,A ................................52

LD HL,IX ................................54

LD HL,IY ................................54

LD IIR,A .................................52

LD IX,HL ................................56

LD IY,HL ................................56

LD r,g ...................................60

LD SP,HL ................................61

LD SP,IX ................................61

LD SP,IY ................................61

LD XPC,A ...............................61

G. Exchange

EX (SP),HL ..............................31

EX (SP),IX ...............................31

EX (SP),IY ...............................31

EX AF,AF’ ...............................32

EX DE,HL ...............................32

EX DE’,HL ...............................32

4 Rabbit 2000/3000 Microprocessor

EXX ....................................33

H. Stack Manipulation

POP IP ..................................73

POP IX ..................................73

POP IY ..................................73

POP zz .................................74

PUSH IP ................................75

PUSH IX ................................75

PUSH IY ................................75

PUSH zz ................................76

I. 16-bit Arithmetic, Logical, and Rotate

ADC HL,ss ..............................15

ADD HL,ss ..............................17

ADD IX,xx ...............................18

ADD IY,yy ...............................18

ADD SP,d ...............................18

AND HL,DE ..............................21

AND IX,DE ..............................21

AND IY,DE ..............................21

BOOL HL ................................24

BOOL IX ................................25

BOOL IY ................................25

DEC IX ..................................29

DEC IY ..................................29

DEC ss .................................30

INC IX ..................................34

INC IY ..................................34

INC ss ..................................35

MUL ....................................68

NEG ....................................69

OR HL,DE ...............................71

OR IX,DE ...............................71

OR IY,DE ...............................71

RL DE ..................................83

RR DE ..................................88

RR HL ..................................88

RR IX ...................................88

RR IY ...................................88

SBC HL,ss ..............................95

J. 8-bit Arithmetic and Logical

ADC A,(HL) .........................13

ADC A,(IX+d) .......................13

ADC A,(IY+d) .......................13

ADC A,n ................................ 14

ADC A,r ................................ 14

ADD A,(HL) ............................. 15

ADD A,(IX+d) ........................... 15

ADD A,(IY+d) ........................... 15

ADD A,n ................................ 16

ADD A,r ................................ 16

AND (HL) ............................... 20

AND (IX+d) ............................. 20

AND (IY+d) ............................. 20

AND r .................................. 22

CP (HL) ................................ 26

CP (IX+d) ............................... 26

CP (IY+d) ............................... 26

CP n ................................... 27

CP r .................................... 27

NEG ................................... 69

OR (HL) ................................ 70

OR (IX+d) ............................... 70

OR (IY+d) ............................... 70

OR n ................................... 72

OR r ................................... 72

SBC (IX+d) ............................. 93

SBC (IY+d) ............................. 93

SBC A,(HL) ............................. 93

SBC A,n ................................ 94

SBC A,r ................................ 94

SUB (HL) .............................. 104

SUB (IX+d) ............................ 104

SUB (IY+d) ............................ 104

SUB n ................................. 104

SUB r ................................. 105

XOR (HL) .............................. 106

XOR (IX+d) ............................ 106

XOR (IY+d) ............................ 106

XOR n ................................. 107

XOR r ................................. 107

K. 8-bit Bit Set, Reset, and Test

BIT b,(HL) .............................. 23

BIT b,(IX+d) ............................. 23

BIT b,(IY+d) ............................. 23

BIT b,r .................................. 24

RES b,(HL) ............................. 77

RES b,(IX+d) ............................ 77

RES b,(IY+d) ............................ 77

Instruction Reference Manual 5

RES b,r .................................78

SET b,(HL) ..............................96

SET b,(IX+d) ............................96

SET b,(IY+d) ............................96

SET b,r .................................97

L. 8-bit Increment and Decrement

DEC (HL) ...............................28

DEC (IX+d) ..............................28

DEC (IY+d) ..............................28

DEC r ...................................29

INC (HL) ................................33

INC (IX+d) ...............................33

INC (IY+d) ...............................33

INC r ...................................34

M. 8-bit Fast Accumulator

CPL ....................................28

RLA ....................................84

RLCA ...................................86

RRA ....................................89

RRCA ..................................91

N. 8-bit Shift and Rotate

RL (HL) .................................82

RL (IX+d) ...............................82

RL (IY+d) ...............................82

RLC (HL) ................................85

RLC (IX+d) ..............................85

RLC (IY+d) ..............................85

RLC r ...................................86

RR (HL) .................................87

RR (IX+d) ...............................87

RR (IY+d) ...............................87

RR r ....................................89

RRC (HL) ...............................90

RRC (IX+d) ..............................90

RRC (IY+d) ..............................90

RRC r ...................................91

SLA (HL) ................................98

SLA (IX+d) ..............................98

SLA (IY+d) ..............................98

SLA r ...................................99

SRA (HL) ...............................100

SRA (IX+d) .............................100

SRA (IY+d) .............................100

SRA r ..................................101

SRL (HL) ...............................102

SRL (IX+d) .............................102

SRL (IY+d) .............................102

SRL r ..................................103

O. Instruction Prefixes

ALTD ...................................19

IOE .....................................36

IOI ......................................36

P. Block Moves

LDD ....................................62

LDDR ...................................62

LDI .....................................62

LDIR ....................................62

Q. Control, Jump, and Call

CALL mn ................................25

DJNZ e ..................................30

JP (HL) ..................................39

JP (IX) ..................................39

JP (IY) ..................................39

JP f,mn ..................................40

JP mn ...................................39

JR cc,e ..................................41

JR e ....................................41

LCALL x,mn .............................42

LJP x,mn ................................67

LRET ...................................67

RET ....................................79

RET f ...................................80

RETI ....................................81

RST v ...................................92

R. Miscellaneous

CCF ....................................26

IPSET 0 .................................37

IPSET 1 .................................37

IPSET 2 .................................37

IPSET 3 .................................37

NOP ....................................69

SCF ....................................95

S. New Instructions

ADD SP,d ...............................18

6 Rabbit 2000/3000 Microprocessor

ALTD ...................................19

AND HL,DE ..............................21

AND IX,DE ..............................21

AND IY,DE ..............................21

BOOL HL ................................24

BOOL IX ................................25

BOOL IY ................................25

EX (SP),HL ..............................31

EX DE,HL ...............................32

IOE .....................................36

IOI ......................................36

IPRES ..................................38

IPSET 0 .................................37

IPSET 1 .................................37

IPSET 2 .................................37

IPSET 3 .................................37

LCALL x,mn .............................42

LD (HL+d),HL ............................44

LD (IX+d),HL .............................45

LD (IY+d),HL .............................46

LD (SP+n),HL ............................48

LD (SP+n),IX ............................48

LD (SP+n),IY ............................48

LD A,XPC ...............................50

LD dd’,BC ...............................51

LD dd’,DE ...............................51

LD HL,(HL+d) ............................53

LD HL,(IX+d) .............................53

LD HL,(IY+d) .............................53

LD HL,(SP+n) ............................54

LD HL,IX ................................54

LD HL,IY ................................54

LD IX,(SP+n) ............................55

LD IX,HL ................................56

LD IY,(SP+n) ............................57

LD IY,HL ................................56

LD XPC,A ...............................61

LDP (HL),HL .............................63

LDP (IX),HL .............................63

LDP (IY),HL .............................63

LDP (mn),HL .............................64

LDP (mn),IX .............................64

LDP (mn),IY .............................64

LDP HL,(HL) .............................65

LDP HL,(IX) .............................65

LDP HL,(IY) .............................65

LDP HL,(mn) ............................ 66

LDP IX,(mn) ............................. 66

LDP IY,(mn) ............................. 66

LJP x,mn ............................... 67

LRET ................................... 67

MUL ................................... 68

OR HL,DE .............................. 71

OR IX,DE ............................... 71

OR IY,DE ............................... 71

POP IP ................................. 73

PUSH IP ................................ 75

RETI ................................... 81

RL DE .................................. 83

RR DE ................................. 88

RR HL .................................. 88

RR IX .................................. 88

RR IY .................................. 88

T. Privileged Instructions

BIT b,(HL) .............................. 23

IPRES .................................. 38

IPSET 0 ................................ 37

IPSET 1 ................................ 37

IPSET 2 ................................ 37

IPSET 3 ................................ 37

LD A,XPC ............................... 50

LD SP,HL ............................... 61

LD SP,IX ............................... 61

LD SP,IY ............................... 61

LD XPC,A ............................... 61

POP IP ................................. 73

RETI ................................... 81

Instruction Reference Manual 7

3. Document Conventions

Instruction Table Key

• Opcode: A hexidecimal representation of the value that the mnemonic instruction represents.

• Instruction: The mnemonic syntax of the instruction.

• Clocks: The number of clock cycles it takes to complete this instruction. The numbers in parenthesis

are a breakdown of the total clocks. The number of clocks instructions take follows a general patern.

There are several Rabbit instructions that do not adhere to this pattern. Some instructions take more

clocks and some have been enhanced to take fewer clocks.

Table 1: Clocks Breakdown

• Operation: A symbolic representation of the operation performed.

Process Clocks

Each byte of the opcode. 2

Each data byte read. 2

Write to memory or exteral IO. 3

Write to internal IO. 2

Internal operation or computation. 1

8 Rabbit 2000/3000 Microprocessor

ALTD, I/O and Flags Table Keys

Table 2: ALTD (“A” Column) Symbol Key

Table 3: IOI and IOE (“I” Column) Symbol Key

Table 4: Flag Register Key

Flag

Description

F R SP

•

ALTD selects alternate flags

•

ALTD selects alternate destination register

•

ALTD operation is a special case

Flag

Description

SD

•

IOI and IOE affect destination

•

IOI and IOE affect source

S Z L/V C Description

•

Sign flag affected

-

Sign flag not affected

•

Zero flag affected

-

Zero flag not affected

L

LV flag contains logical check result

V

LV flag set on arithmetic overflow result

0

LV flag is cleared

•

LV flag is affected

•

Carry flag is affected

-

Carry flag is not affected

0

Carry flag is cleared

1

Carry flag is set

Instruction Reference Manual 9

Document Symbols Key

Table 5: Sym bols

Rabbit Z180 Meaning

b b Bit select (000 = bit 0, 001 = bit 1, 010 = bit 2, 011 = bit

3, 100 = bit 4, 101 = bit 5, 110 = bit 6, 111 = bit 7)

cc cc Condition code select (00 = NZ, 01 = Z, 10 = NC, 11 = C)

d d 7-bit (signed) displacement. Expressed in two's complement.

dd ww word register select-destination (00 = BC, 01 = DE, 10 =

HL, 11 = SP)

dd' word register select-alternate(00 = BC', 01 = DE', 10 =

HL')

e j 8-bit (signed) displacement added to PC

f f condition code select (000 = NZ, 001 = Z, 010 = NC, 011 = C,

100 = LZ/NV, 101 = LO/V, 110 = P, 111 = M)

m m the most significant bits(MSB) of a 16-bit constant

mn mn 16-bit constant

n n 8-bit constant or the least significant bits(LSB) of a 16-

bit constant

r, g g, g' byte register select (000 = B, 001 = C, 010 = D, 011 = E,

100 = H, 101 = L, 111 = A)

ss ww word register select-source ( 00 = BC, 01 = DE, 10 = HL, 11

= SP)

v v Restart address select ( 010 = 0020h, 011 = 0030h, 100 =

0040h, 101 = 0050h, 111 = 0070h)

x nbr an 8-bit constant to load into the XPC

xx xx word register select ( 00 = BC, 01 = DE, 10 = IX, 11 = SP)

yy yy word register select (00 = BC, 01 = DE, 10 = IY, 11 = SP)

zz zz word register select (00 = BC, 01 = DE, 10 = HL, 11 = AF)

10 Rabbit 2000/3000 Microprocessor

Condition Codes

Table 6: Condition Code Description

Condition Flag=Value Description

NZ Z=0 Not Zer0

Z Z=1 Zero

NC C=0 No Carry (C=0)

C C=1 Carry (C=1)

P S=0 Minus

M S=1 Positive

LZ L/V=0 For logic operations, Logic Zero

(all of the four most significant

bits of the result are zero)

NV L/V=0 For arithmentic operations,

No Overflow

LO L/V=1 For logic operations, Logic One

(one or more of the four most signif-

icant bits of the result are one)

V L/V=1 For arithmentic operations,

Overflow

Instruction Reference Manual 11

4. Processor Registers

SZ

LV

C

Sign Zero

Logical/

Overflow

Carry

IX

IY

SP

PC

Index Register

Stack Pointer

Program Counter

General Purpose

External

Interrupt

Internal

Interrupt

Priority

Extension of

Program Counter

EIR

IIR

IP

XPC

Accumulator Flags

H

D

B

A F

L

E

C

16-bit Accumulator

Accumulator

Flags

D'

B'

A' F'

E'

C'

H' L'

16-bit Accumulator

Alternate Registers

12 Rabbit 2000/3000 Microprocessor

Instruction Reference Manual 13

5. OpCode Descriptions

Description

ThedataintheAccumulatorissummedwiththeCarryFlagandwiththedatainmemorywhoselocationis:

• heldinwordregisterHL, or

• the sum of the data in index register IX and a displacement value d,or

• the sum of the data in index register IY and a displacement value d.

The result is then stored in the Accumulator.

ADC A,(HL)

ADC A,(IX+d)

ADC A,(IY+d)

Opcode Instruction Clocks Operation

8E ADC A,(HL) 5 (2,1,2) A= A + (HL) + CF

DD 8E d ADC A,(IX+d) 9 (2,2,2,1,2) A= A + (IX+d)+CF

FD 8E d ADC A,(IY+d) 9 (2,2,2,1,2) A= A + (IY+d)+CF

Flags ALTD I/O

S Z L/V C F R SP S D

• • V • • • •

14 Rabbit 2000/3000 Microprocessor

Description

The 8-bit constant n is summed with the Carry Flag and with the data in the Accumulator. The sum is then

stored in the Accumulator.

Description

The data in the Accumulator is summed with the Carry Flag, CF, and with the data in register r (any of the

registersA,B,C,D,E,H,orL).TheresultisstoredintheAccumulator.

ADC A,n

Opcode Instruction Clocks Operation

CE n ADC A,n 4 (2,2) A=A+n +CF

Flags ALTD I/O

S Z L/V C F R SP S D

• • V • • •

ADC A,r

Opcode Instruction Clocks Operation

—— ADC A,r 2 A=A+r +CF

8F ADC A,A 2 A=A+A+CF

88 ADC A,B 2 A=A+B+CF

89 ADC A,C 2 A=A+C+CF

8A ADC A,D 2 A=A+D+CF

8B ADC A,E 2 A=A+E+CF

8C ADC A,H 2 A=A+H+CF

8D ADC A,L 2 A=A+L+CF

Flags ALTD I/O

S Z L/V C F R SP S D

• • V • • •

Instruction Reference Manual 15

Description

ThedataintheregisterpairHLissummedwiththeCarryFlagandwiththedatainwordregisterss (any of

the word registers BC, DE, HL, or SP). The result is stored in HL.

Description

The data in the Accumulator is summed with the data in the memory location whose address is:

• heldinwordregisterHL, or

• the sum of the data in index register IX and a displacement value d,or

• the sum of the data in index register IY and a displacement value d.

The result is stored in the Accumulator.

ADC HL,ss

Opcode Instruction Clocks Operation

—— ADC HL,ss 4 (2,2) HL = HL + ss +CF

ED 4A ADC HL,BC 4 (2,2) HL = HL + BC + CF

ED 5A ADC HL,DE 4 (2,2) HL = HL + DE + CF

ED 6A ADC HL,HL 4 (2,2) HL = HL + HL + CF

ED 7A ADC HL,SP 4 (2,2) HL = HL + SP + CF

Flags ALTD I/O

S Z L/V C F R SP S D

• • V • • •

ADD A,(HL)

ADD A,(IX+d)

ADD A,(IY+d)

Opcode Instruction Clocks Operation

86 ADD A,(HL) 5 (2,1,2) A = A + (HL)

DD 86 d ADD A,(IX+d) 9 (2,2,2,1,2) A = A + (IX+d)

FD 86 d ADD A,(IY+d) 9 (2,2,2,1,2) A = A + (IY+d)

Flags ALTD I/O

S Z L/V C F R SP S D

• • V • • • •

16 Rabbit 2000/3000 Microprocessor

Description

The data in the Accumulator is summed with the 8-bit constant n. The result is stored in the Accumulator.

Description

The data in the Accumulator is summed with the data in register r (any of the registers A, B, C, D, E, H, or L).

The result is stored in the Accumulator.

ADD A,n

Opcode Instruction Clocks Operation

C6 n ADD A,n 4 (2,2) A=A+n

Flags ALTD I/O

S Z L/V C F R SP S D

• • V • • •

ADD A,r

Opcode Instruction Clocks Operation

—— ADD A,r 2 A=A+r

87 ADD A,A 2 A=A+A

80 ADD A,B 2 A=A+B

81 ADD A,C 2 A=A+C

82 ADD A,D 2 A=A+D

83 ADD A,E 2 A=A+E

84 ADD A,H 2 A=A+H

85 ADD A,L 2 A=A+L

Flags ALTD I/O

S Z L/V C F R SP S D

• • V • • •

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