What is the instruction format in microprocesser?
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1. An instruction is a command to the microprocessor to perform a given task on a specified data.
Each instruction has two parts: one is task to be performed, called the operation code (opcode), and the second is the data to be operated on, called the operand.
3. The operand (or data) can be specified in various ways. It may include 8-bit (or 16-bit) data, an internal register, a memory location, or 8-bit (or 16-bit) address. In some instructions, the operand is implicit.
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The 8085 instruction set is classified into the following three groups according to word size:
1. One-word or 1-byte instructions
2. Two-word or 2-byte instructions
3. Three-word or 3-byte instructions
Each instruction has two parts: one is task to be performed, called the operation code (opcode), and the second is the data to be operated on, called the operand.
3. The operand (or data) can be specified in various ways. It may include 8-bit (or 16-bit) data, an internal register, a memory location, or 8-bit (or 16-bit) address. In some instructions, the operand is implicit.
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The 8085 instruction set is classified into the following three groups according to word size:
1. One-word or 1-byte instructions
2. Two-word or 2-byte instructions
3. Three-word or 3-byte instructions
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