Lesson 03: Addressing Modes

The term Addressing Modes refers to the various ways a processor can specify instructions to access data. If the data number for instruction is in memory, the microprocessor will form a memory address to access it. If the data number is in a register inside the microprocessor, data accessing from memory is not needed. The addressing mode is associated more specifically with the operands, and a single instruction could exercise multiple addressing modes for each of the operands. There are various methods of giving source or destination addresses in instruction, thus there are various types of Addressing Modes. Here you will find the different types of Addressing Modes that are supported in the ARM Cortex-M microcontroller.

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