8085 MICROPROCESSOR
=> As we know that the 8085 microprocessor is an 8-bit microprocessor. So, a total of 256 instruction codes can be generated using 8-bit combinations. But out of 256 instruction codes, only 246 instruction codes are defined by INTEL Corporation for 8085 microprocessor. Each defined instruction code performs a unique task. These instruction codes are called operational code or opcode. There are exact 74 basic functions. The size of the 8085 microprocessor instruction code (or opcode) can either be one-byte or two-bytes or three-bytes.
Opcodes
Table of 8085 Microprocessor
Here is the
complete list of the instruction set of 8085 microprocessor in pdf file.
CLICK HERE FOR DOWNLOAD
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Programming
in 8085
Let's see some simple example to demonstrate the use of some important instructions of 8085.
The memory
addresses given in the program are for a particular microprocessor kit. These
addresses can be changed to suit the microprocessor kit available in your
system.
ALL THE PROGRAMS IN PDF FILE:
CLICK HERE FOR DOWNLOAD
What is
Instruction Set in 8085 Microprocessor?
A binary
command that is used to perform a function in the microprocessor over provided
data is known as instruction. A set of instructions is known as an instruction
set that decides the microprocessor function. Every instruction includes two
parts like Opcode & the Operand where Opcode is used to specify the
function to be executed & operand gives the data to be functioned on.
Classification
of Instruction Set of 8085
The
instruction set of 8085 microprocessor is classified into five types which
include the following.
· 1.Data Transfer Instruction
· 2.Arithmetic Instruction
· 3.Logical Instruction
· 4.Branching Instruction
· 5.Control Instruction


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