Question

1). Explain in detail the usage of the LDR assembly language instruction.

Answer 1

The LDR assembly language instruction is used to load a value from memory into a register.

Step-by-step explanation:

The usage of the LDR (Load Register) assembly language instruction is to load a value from memory into a register. It is often used to load constants or data from memory into a register that can then be used in calculations or operations.

For example, in ARM assembly language, the LDR instruction is used to load a value into a register:

LDR R0, =1234

This instruction loads the value 1234 into register R0. The equal sign (=) indicates that the value is a constant.