assembly-intro

Intro to x86 Assembly Language MASM is short for Microsoft Macro Assembler • Assembly instructions are readable forms of machine instructions – They use mnemonics to specify operations in a human-oriented MOV (move) SUB (subtract) JMP (jump) • Instructions have two aspects : operation and operands – Operation (Opcode): how to use state variable values – operands: which state variables to us • Operands can be specified in a variety of ways that are called addressing modes – Simple modes: register, immediate, direct – More powerful: indirect