Elements of Assembly Language Instruction

Elements of Assembly Language Instruction :
Any PIC Instruction consists of:

Code:

Label        Mnemonics        Operands

1. Label: is textual designation for a line in a program, or section of a program to can jump to the beginning of set of lines of a program.
2. Mnemonics: is the instruction which already defined by the use of microprocessor. It is the instruction set or the syntax of the used microprocessor.
3. Operands: are the instruction elements for the instruction is being executed. They are usually registers or variables or constants.
4. Comment: is a series of words that a programmer writes to make the program more clear and legible. It is placed after an instruction, and must start with a semicolon ";". It is optional.

Code Example :
asm code

start movlw 0x03

Here the start is a label. movlw is a opcode. 0x03 is a operand.