What is instruction group in computer architecture?

What is instruction group in computer architecture?

All instruction which computer use to perform different operation are grouped. That groups are called instruction groups. There are mainly four instruction groups which i am listing it below.

1. data moving instruction group:

used for moving data from one place to another.

Example:
move ax,bx
load 1234

2. Arithmetic and logic instruction group:

used when and arithmetical or logical operation is required.

Examples:
add bx,0534
add bx,1234
add bx,[1200]

3: program control instruction group:

used for control the program execution and keep the instruction in a sequence and in specified queue one after another.

4: special instruction group:

used for changing the processor behaviors. example: cli, sti.

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