Which are the parts of a machine instruction?

Which are the parts of a machine instruction?

Instruction in memory has two parts: opcode and operands. The operands are subjects of the operation, such as data values, registers, or memory addresses. Due to variety of opcodes and operands, instructions may occupy different sizes of bytes in memory.

What are two different types of machine code?

Machine code can be written in different forms:

• Using a number of switches. This generates a sequence of 1 and 0.
• Using a Hex editor.
• Using an Assembler.
• Using a High-level programming language allows programs that use code that is easier to read and write.

What is machine instruction and what are the elements of a machine instruction?

Elements of a machine instruction. Opcode- uses a binary code which specifies the operation to be preformed. Source operand reference- the input for the operation. Result operand reference- the result produced by the operation. Next instruction reference- tells the processor where to get the next instruction.

What is the machine language instruction format consists of?

A machine language instruction format consists of Operation code field & operand field. The instruction, MOV AX, 1234H is an example of immediate addressing mode.

How is machine language written?

To make the computer understand, a program can be written using only 0s and 1s. The data can also be specified and represented using only 0s and 1s. Such a program is called Machine Language program. Machine language was the first in the evolution of computer programming languages.

What is machine language instruction?

Machine code or machine language is a set of instructions executed directly by a computer’s central processing unit (CPU). Each instruction performs a very specific task, such as a load, a jump, or an ALU operation on a unit of data in a CPU register or memory.

Which of the following is a 2 byte instruction?

Two-byte instruction is the type of instruction in which the first 8 bits indicates the opcode and the next 8 bits indicates the operand. In a two-byte instruction, the first byte specifies the operation code and second byte specifies the operand. Source operand is a data byte and immediately following the opcode.

Which field of the machine language instruction is the type of operation that is to be performed?

ADDRESSING MODES The operation field of an instruction specifies the operation to be performed. This operation must be executed on some data stored in computer registers or memory words. The way the operands are chosen during program execution in dependent on the addressing mode of the instruction.

What are the features of machine language?

Machine and assembly languages A machine language consists of the numeric codes for the operations that a particular computer can execute directly. The codes are strings of 0s and 1s, or binary digits (“bits”), which are frequently converted both from and to hexadecimal (base 16) for human viewing and modification.

Which instructions are machine codes that are used by machine or assembly language?

A much more human friendly rendition of machine language, called assembly language, uses mnemonic codes to refer to machine code instructions, rather than using the instructions’ numeric values directly, and uses symbolic names to refer to storage locations and sometimes registers.

What are the three main types of computer programming languages?

There are three main kinds of programming language:

• Machine language.
• Assembly language.
• High-level language.