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Lecture 8: ARM Arithmetic and Bitweise Instructions

Lecture 8: ARM Arithmetic and Bitweise Instructions CSE 30: Computer Organization and Systems Programming Winter 2014. Diba Mirza Dept. of Computer Science and Engineering University of California, San Diego Basic Types of ARM Instructions 1. Arithmetic : Only processor and registers involved 1. compute the sum (or difference) of two registers, store the result in a register 2. move the contents of one register to another 2. Data Transfer Instructions : Interacts with memory 1. load a word from memory into a register 2. store the contents of a register into a memory word 3. Control Transfer Instructions : Change flow of execution 1. jump to another instruction 2. conditional jump ( , branch if registeri == 0). 3. jump to a subroutine ARM Addition and Subtraction Syntax of Instructions : 1 2, 3, 4.

Basic Types of ARM Instructions 1. Arithmetic: Only processor and registers involved 1. compute the sum (or difference) of two registers, store the result in a register 2. move the contents of one register to another 2. Data Transfer Instructions: Interacts with memory 1. load a word from memory into a register 2.

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