Class US

  • Direct Known Subclasses:
    US, US

    public class US
    extends Object
    • Constructor Summary

      Constructors 
      Constructor Description
      US()  
    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static int ADR_OF_METHOD​(String name)
      Get absolute address of class method
      static void ASM​(String instr)
      Insert single machine code instruction
      static boolean BIT​(int address, int bitNr)
      Read a bit at hardware address: return BIT(mem[address](byte), bitNr)
      static byte GET1​(int address)
      Read 1 byte from hardware address: return mem[address]
      static short GET2​(int address)
      Read 2 byte from hardware address: return mem[address]
      static int GET4​(int address)
      Read 4 byte from hardware address: return mem[address]
      static long GET8​(int address)
      Read 8 byte from hardware address: return mem[address]
      static void PUT1​(int address, int value)
      Write 1 byte to hardware address: mem[address] = (byte)value
      static void PUT2​(int address, int value)
      Write 2 byte to hardware address: mem[address] = (short)value
      static void PUT4​(int address, int value)
      Write 4 byte to hardware address: mem[address] = value
      static void PUT8​(int address, long value)
      Write 8 byte to hardware address: mem[address] = value
      static int REF​(Object ref)
      Returns object reference as address
    • Constructor Detail

      • US

        public US()
    • Method Detail

      • PUT1

        public static void PUT1​(int address,
                                int value)
        Write 1 byte to hardware address: mem[address] = (byte)value
        Parameters:
        address - Memory address to write to.
        value - Byte value.
      • PUT2

        public static void PUT2​(int address,
                                int value)
        Write 2 byte to hardware address: mem[address] = (short)value
        Parameters:
        address - Memory address to write to.
        value - Two byte value.
      • PUT4

        public static void PUT4​(int address,
                                int value)
        Write 4 byte to hardware address: mem[address] = value
        Parameters:
        address - Memory address to write to.
        value - Four byte value.
      • PUT8

        public static void PUT8​(int address,
                                long value)
        Write 8 byte to hardware address: mem[address] = value
        Parameters:
        address - Memory address to write to.
        value - Eight byte value.
      • GET1

        public static byte GET1​(int address)
        Read 1 byte from hardware address: return mem[address]
        Parameters:
        address - Memory address to read from.
        Returns:
        Byte value.
      • GET2

        public static short GET2​(int address)
        Read 2 byte from hardware address: return mem[address]
        Parameters:
        address - Memory address to read from.
        Returns:
        Two byte value.
      • GET4

        public static int GET4​(int address)
        Read 4 byte from hardware address: return mem[address]
        Parameters:
        address - Memory address to read from.
        Returns:
        Four byte value.
      • GET8

        public static long GET8​(int address)
        Read 8 byte from hardware address: return mem[address]
        Parameters:
        address - Memory address to read from.
        Returns:
        Eight byte value.
      • BIT

        public static boolean BIT​(int address,
                                  int bitNr)
        Read a bit at hardware address: return BIT(mem[address](byte), bitNr)
        Parameters:
        address - Memory address.
        bitNr - Bit number (0 .. 7).
        Returns:
        true if bit set.
      • ASM

        public static void ASM​(String instr)
        Insert single machine code instruction
        Parameters:
        instr - Machine instruction as string.
      • ADR_OF_METHOD

        public static int ADR_OF_METHOD​(String name)
        Get absolute address of class method
        Parameters:
        name - Name of method.
        Returns:
        Memory address of method.
      • REF

        public static int REF​(Object ref)
        Returns object reference as address
        Parameters:
        ref - Object reference.
        Returns:
        Memory address of object.