Assembly Language

Assembly Language

1. Types of Assembly Language

   • High Level
     • Human Readable
     • Uses English like statements
     • Examples
       • C++
       • Visual Basic
       • Python
       • Java
   • Assembly
     • Low Level Language, very similar to Machine Code
     • Uses symbolic operation code to represent machine operation code.
   • Machine
     • Machine readable
     • All programs are converted to machine language before they can be executed.
     • 0's and 1's that represent high and low electrical voltage (Binary).

2. Branching

   • The flow of a program can be altered by using a conditional or unconditional branch instruction.
     • Conditional
       • The conditional branch instructions BRP (branch if positive) and BRZ (branch if zero) cause a branch to a given label in the program depending on the value held in the accumulator.
     • Unconditional
       • The unconditional branch instruction, (BRA) will cause a branch no matter what the value in the accumulator is.