Variable management

Variable management in the Virtual Processor's assembly language involves declaring, initializing, and manipulating variables for data storage and retrieval.

var instruction

Syntax and usage

• Syntax: var name, value
• Function: Declares a variable with a given name and initializes it with a value.
• Binary code:
  • For numeric values: 1001 1000 0101 1001 (var id), 1100 1000 0000 0001, 1101 0000 0000 1001 (Op code: 1 0011)
  • For string values: Binary code sequence includes the variable ID, size, and data.
• Error check:
  • Avoid redeclaration of existing variables.
  • Adhere to size constraints (not exceeding 256 bytes).

Example

• Declaring a numeric variable:

  var myVar, 10  ; Declares variable 'myVar' with an initial value of 10
  

• Declaring a string variable:

  var myString, "Hello"  ; Declares a string variable 'myString'