The language to command a computer architecture is comprised of instructions and the vocabulary of that language is called the instruction set
In this lab, we will learn some basic ARM assembly language instructions and write a simple programs in assembly language ARM Assembly Instructions ARM
These set of instructions are called 'machine language instruction' Processor understands only machine language instructions which are strings of 1s and 0s
Fundamental of Assembly Language Instructions An instruction is a statement that becomes executable when a program is assembled
Assembly Languages – Lower level, closer to ISA – Very ISA-dependent – Each instruction specifies a single ISA instruction – Makes low level programming
- Each mnemonic represents a single machine instruction - Operands provide the data to work with 2 3 2 1 Assembler Directives Pseudo instructions or
Assembly Language Processor instruction set Computer Science 9608 with Majid Tahir 1 Machine code:– Machine code, also known as machine language,
3 6 6 Machine Language Programming Instruction Encoding Exercises 4 9 1 The UCR Standard Library for 80x86 Assembly Language Programmers
Assembly Languages Characteristics • Not portable • Each assembly lang instruction maps to one machine lang instruction • Simple
Language Levels Instruction-Set Architecture (ISA) Assembly Language: Defining global data Assembly Language: Performing Arithmetic
These set of instructions are called 'machine language instruction' Processor understands only machine language instructions which are strings of 1s and 0s
High Level vs Assembly ○ High Level Languages – More programmer friendly operands – The operand field is not required for all instructions or directives
Outline • Introduction to assembly languages • MIPS instruction set architecture • MIPS basic instructions • Arithmetic instructions • Data transfer instructions
3 6 6 Machine Language Programming Instruction Encoding Exercises 5 6 2 4 Accessing Multidimensional Array Elements in Assembly Language