dbowerman
eae5314e3b
The ToString method will concatenate the string representations of the high and low words (or dwords) to create a single string representation of the entire word. This can be used to more easily write and read the value from the MC and CU classes.
60 lines
2.0 KiB
C#
60 lines
2.0 KiB
C#
namespace CPUSimulation
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{
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public class CU // Control Unit
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{
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int numberOfRegisters = 16;
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Dictionary<string, string> _instructionSet;
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Dictionary<string, Word> _registers;
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public CU(int numberOfMemoryBanks)
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{
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_instructionSet = new Dictionary<string, string>();
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_instructionSet.Add("00000", "NOP");
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_instructionSet.Add("00001", "LOAD");
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_instructionSet.Add("00010", "STORE");
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_instructionSet.Add("00011", "ADD");
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_instructionSet.Add("00100", "SUB");
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_instructionSet.Add("00101", "JUMP");
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_instructionSet.Add("00110", "JUMPIFZERO");
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_instructionSet.Add("00111", "JUMPIFNEG");
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_instructionSet.Add("01000", "AND");
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_instructionSet.Add("01001", "OR");
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_instructionSet.Add("01010", "XOR");
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_instructionSet.Add("01011", "NOT");
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_instructionSet.Add("01100", "SHL");
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_instructionSet.Add("01101", "SHR");
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_instructionSet.Add("01110", "INC");
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_instructionSet.Add("01111", "DEC");
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_registers = new Dictionary<string, Word>();
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Word zeroWord = new Word(new Byte[2] { new Byte("00000000"), new Byte("00000000") });
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for (int i = 0; i < numberOfRegisters; i++)
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{
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string registerName = ((byte)i).ToString().Substring(4, 4);
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_registers.Add(registerName, zeroWord);
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}
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}
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internal class ProgramCounter
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{
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Int16 _value;
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public ProgramCounter()
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{
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_value = 0;
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}
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public void Increment()
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{
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_value++;
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}
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public void SetValue(string value)
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{
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_value = Convert.ToInt16(value, 2);
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}
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public string GetValue()
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{
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return Utils.Int16ToBinaryString(_value);
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}
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}
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}
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} |