Instruction Sets

Instruction Sets

​Instruction Sets

• ​set of operations which are decoded in sequence (these operations instruct ALU and CU.)

• also called as ​I.S.A (Instruction Set Architecture)

• a machine language

• provide commands ​to the processor

• ​not the same with program codes (programming)

​x86 Architecture

• ​an example of an instruction set

• ​common CPU standard

Poll

What is the CPU standard?

• x86

• x64

• x32

​Components of Instructions Set

​Opcode and Operand

Poll

What do you think are the components of instructions set?

• opcode & operand

• 1's and 0's

• instruction & set

• bread & butter

Multiple Choice

Informs the CPU what operation needs to be done.

• Opcode

• Operand

Multiple Choice

Data which needs to be acted on or it can refer  to a register in the memory.

• Opcode

• Operand

​Examples of Instructions Set Operations

• ​mnemonics

​

​ADD - add the value of another variable to the value stored in the accumulator

​JMP - Jump to designated RAM address.

​LDA - means replace the value of the variable by the value stored in the accumulator.

​STO - means replace the value of the variable by the value stored in the accumulator.

​OUT - Output information to device, e.g., monitor.

​IN - Input information from a device, e.g., keyboard.

Open Ended

What is the word that you most remembered in this topic?

Open Ended

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Open Ended

In your own words, how do you define an instruction set?

Poll

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