Appendix A: 8085 Instruction Set by Opcode PDF

OPCODES TABLE OF INTEL 8085. Opcodes of Intel 8085 in Alphabetical Order. Sr. No. Mnemonics Operand. Opcode. Bytes. 1. ACI Data. CE. 2. 2. ADC A. 8F. 1. 3. ADC

INSTRUCTION SET OF 8085

An instruction is a binary pattern designed inside a microprocessor Example: CMC. Page 54. Logical Instructions. Opcode. Operand. Description. STC. None.

Instruction Set

Three-word or 3-byte instructions. In the 8085 "byte" and "word" are synonymous because it is an 8-bit microprocessor. However

8085 Microprocessor Instruction Set

Instruction set of 8085A consists of one two and three byte instructions. ◇ 1.One Byte Instruction. FORMAT. For example: MOV B

8085 INSTRUCTION SET

set the instruction adds 6 to the high-order four bits. Example: DAA. Page 7. 8085 Instruction Set. Page 7. BRANCHING INSTRUCTIONS. Opcode Operand. Description.

8085 Instruction Set.pdf

This group of instructions transfers data to and from registers and memory. Condition flags are not affected by any instruction in this group. MOV r1 r2. (r1).

Unit-II Instruction Set and Programs for Intel 8085 • Following major

20 Oct 2020 • The opcode specifies the address of the register(s) in ... • The instruction set of a microprocessor is the collection of the instructions.

8085 Microprocessor Question Bank

The unconditional jump instruction enables the programmer to set up continuous loops. Opcode. Operand. Description. JMP. 16-bit. Jump. • This is a 3-byte

Multiple Choice Questions 1. Intel 8085 is a ______ bit

The microprocessor 8085 has _____ basic instructions and _____ opcodes. a Consider the following set of 8085 instruction. MVI A82H. ORA A. JP DSPLY. XRA A.

instruction-set-of-8085.pdf

registers (C E

OPCODES TABLE OF INTEL 8085 Opcodes of Intel 8085 in

Page 1 of 6. OPCODES TABLE OF INTEL 8085. Opcodes of Intel 8085 in Alphabetical Order. Sr. No. Mnemonics Operand. Opcode. Bytes. 1. ACI Data.

Appendix A: 8085 Instruction Set by Opcode

IN port. DB. OUT port. D3. Page 6. 228. Microelectronics and Microprocessor-based Systems. Stack and Machine Control Group. Thisgroup ofinstructionsmaintains

INSTRUCTION SET OF 8085

The entire group of instructions that a microprocessor supports is called Instruction Set. Data Transfer Instructions. Opcode. Operand. Description.

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AVR Instruction Set Manual

Atmel-0856L-AVR-Instruction-Set-Manual_Other-11/2016 The AVR® Enhanced RISC microcontroller supports powerful and efficient ... 16-bit Opcode:.

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B. D. H. SP. C. NC. Z. NZ. MOV. B. C. D. E. H. L. M. A. LXI. 1. 11. 21. 31. JMP. C3. DA D2 CA C2. B. 40. 41. 42. 43. 44. 45. 46. 47. INX. 3. 13. 23.

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instruction-set-of-8085.pdf

Instruction Set of 8085 The entire group of instructions that a microprocessor ... Data Transfer Instructions. Opcode. Operand. Description.

AppendixA:

223

8085Instruction

Set byOpcode Theinformationin thisappendixisreproducedby kindpermissionofthe Intel Corporation.Thesymbolsandabbreviationsused are listed below.

Symbol

A B,C,D E,H,L F M byte dbIe addr port r,rl,r2 rp PC CY P AC Z S

Meaning

Accumulator

} One of theinternalregisters

Representsthe flag register

The 16-bitmemoryaddresscurrentlyheld by the register pair HandL

An 8-bit dataquantity

A 16-bit

(twobyte)dataquantity

A 16-bit address

An 8-bit I/Oportaddress

One ofthe registers A, B, C,D, E,H,L

Oneofthe following register pairs

Brepresentsthe register pair

BandC

Drepresentsthe register pairDandE

Hrepresentsthe register pairHandL

PSWrepresentsthe register pair A andF

SPrepresentsthe 16-bit stackpointer

The 16-bitprogramcounter

Carry flag

Parityflag

Auxiliarycarry flag

Zero flag

Sign flag

DataTransferGroup

Theseinstructionstransferdata betweenregisters andmemory.

Flags-noneaffectedbyinstructionsin thisgroup.

Move

A,A 7F

B,A47 C,A4F

A,B 78B,B40C,B48

A,C79B,C41C,C49

MaV A,D7A MaV B,D42 MaV C,D4A A,E

7BB,E43C,E 4B

A,H

7CB,H44C,H4C

A,L 7D

B,L45C,L 4D

A,M 7E

B,M46C,M 4E

D,A

57E,ASFH,A67

D,B 50

E,B58H,B60

D,C51E,C59H,C61

MaV D,D52 MaV E,DSA MaV H,D62 D,E

53E,E5BH,E63

D,H

54E,H5CH,H64

D,L

55E,L5DH,L65

D,M

56E,M5EH,M66

MoveImmediate

L,A 6F

M,A

77A,byte3E

L,B 68

M,B70B,byte06

L,C

69M,C71C,byteOE

MaV L,D6A MaV M,D72

MYID,byte16

L,E

6BM,E73E,byte

L,H6CM,H74H,byte26

L,L

6DM,L75L,byte2E

L,M 6E

M,byte36

LoadImmediate(Reg.pair)Load/StoreAdirect

{ B,db!, 01

LDAXBOA

LXI

D,dble

11LDAXDlA

H,dble21STAXB02

SP,dble

STAXD12

Load/StoreAdirectLoad/StoreHLdirect

LDA addr

3ALHLDaddr2A

STAaddr32

SHLDaddr22

AppendixA: 8085InstructionSetbyOpcode225

Exchange HL with DE

XCHG EB

DataManipulationGroup -Arithmetic

Instructionsin this groupperformarithmeticoperationson data inthe registers and thememory. Add* A 87A8F
B

80B 88

C 81C89
ADD

D 82ADCD 8A

E 83E8B
H

84H 8C

L85L8D

M86M8E

Subtract*

A 97A9F
B

90B 98

91C 99

SUB D 92

SBBD9A

E 93 E9B H

94H 9C

L95L9D

M96M9E

Add/SubtractImmediate*Double LengthAdd***

ADI byteC6

DAD 09

ACIbyteCE19

SUI byte

D629

SBI byte

DESP 39

Increment/Decrement**

A 3CA3D B

04B 05

C OCCOD INR

D14DCRD 15

E lC E 10

H 24H 25

L2CL2D

M34M35

Increment/DecrementRegister Pair****

U 03 Hp OB

INX13DCXIB

23
2B 33
3B

Complement

AU**Decimal Adjust A*

DAA 27CMA2F

Complement/SetCY***

CMC 3F

STC37ArithmeticImmediate*

AD! byte C6

ACI byteCE

SUI byteD6

SBIbyteDE

Notes *All flags may beaffected. ** All flags exceptCARRY may be affected. ***Only CARRY FLAG affected. ****No flags affected.

DataManipulationGroup - Logical

Instructionsin this group perform logicaloperationson data in the registers and the memory.

ANDORExclusive-OR*

A A7A B7AAF

AOBBOBA8

AlCBlC A9

ANA

DA2ORAD B2XRADAA

A3E B3E AB

HA4HB4HAC

L AS

LB5LAD

A6MB6MAE

AppendixA: 8085 InstructionSetbyOpcode227

CMPCompare*

A B C D E H L MBF B8 B9 BA BB BC BD

BERotate***

RLC 07

RRC OF

RAL 17

RAR IF

LogicalImmediate*

ANIbyteE6

XRIbyteEE

ORI byteF6

CPIbyteFE

Notes *All flags may beaffected. ***Only the CARRY flag may beaffected.

Transfer

ofControlGrouporBranchGroup

This group

ofinstructionsalters the sequenceofprogram flow by testing the conditionflags.

JumpCallReturn

IMPaddrC3CALLaddrCD RETC9

INZaddrC2CNZ addrC4 RNZCO

IZaddr CACZ addrCCRZ C8

INCaddr D2CNC addr D4 RNCDO

ICaddrDA CC addrDC RC D8

IPO addr E2

CPOaddrE4 RPO

JPE addr EA CPE addr ECRPE E8

IPaddrF2 CPaddrF4 RP FO

1MaddrFA CMaddrFC RM F8

JumpIndirect

PCHL E9

Input/OutputGroup

Thisgroup

ofinstructionsperformsI/Oinstructionsbetweentheaccumulatorand a specifiedport.

INportDB

OUT portD3

228Microelectronics andMicroprocessor-basedSystems

Stack and MachineControlGroup