Assembly Language Fundamentals

Assembly Language Fundamentals

1. Basic elements

   • Integers
     • + or -
       • binary, decimal, hexadecimal, octal
       • precedence
   • Character
     • Comments
       • ; -----txt
     • ASCII
       • 1 byte
   • Reserved words
     • Directives and instructions
       • IA-32
     • identifiers
   • Labels
     • Mnemonics and operands
       • memory aid
         • register
     • myArray
       • L1
   • Examples

2. Example

   • output
   • suggested coding standars

3. Assembling

   • Assemble-link-execute cycle

4. Linking

   • listing file

5. Running Programs

   • map file

6. Defining Data

   • intrinsic data types
   • data definition statement
   • little endian order
   • Adding variables to AddSub
     • Declaring unitialized data

7. Symbolic Constans

   • Equal-sing directive
   • EQU Directive
     • TEXTEQU Directive

8. Real-address mode programming

   • Generate 16 bits
     • MS-DOS programs
     • Add and Subtract
   • Advantages
   • Disadvantages
   • Requeriments

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