Package mars.mips.instructions

Class InstructionSet

java.lang.Object
mars.mips.instructions.InstructionSet
public class InstructionSet extends Object
The list of Instruction objects, each of which represents a MIPS instruction. The instruction may either be basic (translates into binary machine code) or extended (translates into sequence of one or more basic instructions).
Version:
August 2003-5
Author:
Pete Sanderson and Ken Vollmar

  • Constructor Details

    • InstructionSet

      public InstructionSet()
      Creates a new InstructionSet object.

  • Method Details

    • getInstructionList

      public ArrayList<Instruction> getInstructionList()
      Retrieve the current instruction set.

    • populate

      public void populate()
      Adds all instructions to the set. A given extended instruction may have more than one Instruction object, depending on how many formats it can have.
      See Also:
      Instruction, BasicInstruction, ExtendedInstruction

    • findByBinaryCode

      public BasicInstruction findByBinaryCode​(int binaryInstr)

    • matchOperator

      public ArrayList<Instruction> matchOperator​(String name)
      Given an operator mnemonic, will return the corresponding Instruction object(s) from the instruction set. Uses straight linear search technique.
      Parameters:
      name - operator mnemonic (e.g. addi, sw,...)
      Returns:
      list of corresponding Instruction object(s), or null if not found.

    • prefixMatchOperator

      public ArrayList<Instruction> prefixMatchOperator​(String name)
      Given a string, will return the Instruction object(s) from the instruction set whose operator mnemonic prefix matches it. Case-insensitive. For example "s" will match "sw", "sh", "sb", etc. Uses straight linear search technique.
      Parameters:
      name - a string
      Returns:
      list of matching Instruction object(s), or null if none match.