private void FilterInstructionBits()
{
m_wsCInstructionReset = new WireSet(Size);
int[] cInstructionResetWsValues = new int[] { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, };
for (int i = 0; i < Size; i++)
{
m_wsCInstructionReset[i].Value = cInstructionResetWsValues[i];
}
m_gInstructionAnd = new BitwiseAndGate(Size);
m_gInstructionAnd.Input1.ConnectInput(Instruction);
m_gInstructionAnd.Input2.ConnectInput(m_wsCInstructionReset);
m_gInstructionMux = new BitwiseMux(Size);
m_gInstructionMux.Input1.ConnectInput(m_gInstructionAnd.Output);
m_gInstructionMux.Input2.ConnectInput(Instruction);
m_gInstructionMux.ConnectControl(Instruction[Type]);
}
//here we initialize and connect all the components, as in Figure 5.9 in the book
public CPU16()
{
Size = 16;
Instruction = new WireSet(Size);
MemoryInput = new WireSet(Size);
MemoryOutput = new WireSet(Size);
MemoryAddress = new WireSet(Size);
InstructionAddress = new WireSet(Size);
MemoryWrite = new Wire();
Reset = new Wire();
m_gALU = new ALU(Size);
m_rPC = new Counter(Size);
m_rA = new MultiBitRegister(Size);
m_rD = new MultiBitRegister(Size);
m_gAMux = new BitwiseMux(Size);
m_gMAMux = new BitwiseMux(Size);
m_gAMux.ConnectInput1(Instruction);
m_gAMux.ConnectInput2(m_gALU.Output);
m_rA.ConnectInput(m_gAMux.Output);
m_gMAMux.ConnectInput1(m_rA.Output);
m_gMAMux.ConnectInput2(MemoryInput);
m_gALU.InputY.ConnectInput(m_gMAMux.Output);
m_gALU.InputX.ConnectInput(m_rD.Output);
m_rD.ConnectInput(m_gALU.Output);
MemoryOutput.ConnectInput(m_gALU.Output);
MemoryAddress.ConnectInput(m_rA.Output);
InstructionAddress.ConnectInput(m_rPC.Output);
m_rPC.ConnectInput(m_rA.Output);
m_rPC.ConnectReset(Reset);
//now, we call the code that creates the control unit
ConnectControls();
}
//private Wire wi1, wi2;
//here we initialize and connect all the components, as in Figure 5.9 in the book
public CPU16()
{
wi1 = new Wire();
wi2 = new Wire();
and_D = new AndGate();
and_MW = new AndGate();
and_JM0 = new AndGate();
and_JM1 = new AndGate();
and_JM2 = new AndGate();
and_JMP = new AndGate();
not_Zero = new NotGate();
not_Neg = new NotGate();
not_A = new NotGate();
J_0 = new Wire();
JGT = new Wire();
JEQ = new Wire();
JGE = new Wire();
JLT = new Wire();
JNE = new Wire();
JLE = new Wire();
J_1 = new Wire();
JMP = new WireSet(3);
or_A = new OrGate();
or_JMP = new OrGate();
Size = 16;
Instruction = new WireSet(Size);
MemoryInput = new WireSet(Size);
MemoryOutput = new WireSet(Size);
MemoryAddress = new WireSet(Size);
InstructionAddress = new WireSet(Size);
MemoryWrite = new Wire();
Reset = new Wire();
m_gALU = new ALU(Size);
m_rPC = new Counter(Size);
m_rA = new MultiBitRegister(Size);
m_rD = new MultiBitRegister(Size);
m_gAMux = new BitwiseMux(Size);
m_gMAMux = new BitwiseMux(Size);
m_gAMux.ConnectInput1(Instruction);
m_gAMux.ConnectInput2(m_gALU.Output);
m_rA.ConnectInput(m_gAMux.Output);
m_gMAMux.ConnectInput1(m_rA.Output);
m_gMAMux.ConnectInput2(MemoryInput);
m_gALU.InputY.ConnectInput(m_gMAMux.Output);
m_gALU.InputX.ConnectInput(m_rD.Output);
m_rD.ConnectInput(m_gALU.Output);
MemoryOutput.ConnectInput(m_gALU.Output);
MemoryAddress.ConnectInput(m_rA.Output);
InstructionAddress.ConnectInput(m_rPC.Output);
m_rPC.ConnectInput(m_rA.Output);
m_rPC.ConnectReset(Reset);
//now, we call the code that creates the control unit
ConnectControls();
}
private void ConnectControls()
{
or = new OrGate();
muxArray = new MuxGate[9];
NotGate not = new NotGate();
JGT = new AndGate();
JGE = new OrGate();
JLE = new OrGate();
JNE = new NotGate();
notArray = new NotGate[2];
for (int i = 0; i < notArray.Length; i++)
{
notArray[i] = new NotGate();
}
m_gJumpMux = new BitwiseMultiwayMux(1, 3);
jump = new WireSet(3);
andForPCLoad = new AndGate();
Wire PCLoad = new Wire();
//1.
m_gAMux.ConnectControl(Instruction[Type]);
//2. connect control to mux 2 (selects A or M entrance to the ALU)
m_gMAMux.ConnectControl(Instruction[A]);
//3. consider all instruction bits only if C type instruction (MSB of instruction is 1)
for (int i = 0; i < muxArray.Length; i++)
{
muxArray[i] = new MuxGate();
muxArray[i].ConnectInput1(new Wire());
muxArray[i].ConnectInput2(Instruction[i + 3]);
muxArray[i].ConnectControl(Instruction[Type]);
}
//4. connect ALU control bits
m_gALU.ZeroX.ConnectInput(muxArray[C1 - 3].Output);
m_gALU.NotX.ConnectInput(muxArray[C2 - 3].Output);
m_gALU.ZeroY.ConnectInput(muxArray[C3 - 3].Output);
m_gALU.NotY.ConnectInput(muxArray[C4 - 3].Output);
m_gALU.F.ConnectInput(muxArray[C5 - 3].Output);
m_gALU.NotOutput.ConnectInput(muxArray[C6 - 3].Output);
//5. connect control to register D (very simple)
m_rD.Load.ConnectInput(muxArray[D2 - 3].Output);
//6. connect control to register A (a bit more complicated)
not.ConnectInput(Instruction[Type]);
or.ConnectInput1(not.Output);
or.ConnectInput2(muxArray[D1 - 3].Output);
m_rA.Load.ConnectInput(or.Output);
//7. connect control to MemoryWrite
MemoryWrite.ConnectInput(muxArray[D3 - 3].Output);
//8. create inputs for jump mux
notArray[0].ConnectInput(m_gALU.Zero);
notArray[1].ConnectInput(m_gALU.Negative);
//JGT:
JGT.ConnectInput1(notArray[0].Output);
JGT.ConnectInput2(notArray[1].Output);
//JGE:
JGE.ConnectInput1(m_gALU.Zero);
JGE.ConnectInput2(notArray[1].Output);
//JNE:
JNE.ConnectInput(notArray[0].Output);
//JLE:
JLE.ConnectInput1(m_gALU.Zero);
JLE.ConnectInput2(m_gALU.Negative);
WireSet JGTOut = new WireSet(1);
WireSet JEQOut = new WireSet(1);
WireSet JLTOut = new WireSet(1);
WireSet JGEOut = new WireSet(1);
WireSet JNEOut = new WireSet(1);
WireSet JLEOut = new WireSet(1);
JGTOut[0].ConnectInput(JGT.Output);
JEQOut[0].ConnectInput(m_gALU.Zero);
JLTOut[0].ConnectInput(m_gALU.Negative);
JGEOut[0].ConnectInput(JGE.Output);
JNEOut[0].ConnectInput(JNE.Output);
JLEOut[0].ConnectInput(JLE.Output);
//9. connect jump mux (this is the most complicated part)
jump[0].ConnectInput(Instruction[J3]);
jump[1].ConnectInput(Instruction[J2]);
jump[2].ConnectInput(Instruction[J1]);
m_gJumpMux.ConnectControl(jump);
m_gJumpMux.ConnectInput(0, new WireSet(1));
m_gJumpMux.ConnectInput(1, JGTOut);
m_gJumpMux.ConnectInput(2, JEQOut);
m_gJumpMux.ConnectInput(3, JGEOut);
m_gJumpMux.ConnectInput(4, JLTOut);
m_gJumpMux.ConnectInput(5, JNEOut);
m_gJumpMux.ConnectInput(6, JLEOut);
m_gJumpMux.Inputs[7].Value = 1;
//10. connect PC load control
andForPCLoad.ConnectInput1(m_gJumpMux.Output[0]);
andForPCLoad.ConnectInput2(Instruction[Type]);
m_rPC.ConnectLoad(andForPCLoad.Output);
}
static void Main(string[] args)
{
WireSet ws = new WireSet(9);
WireSet ws2 = new WireSet(9);
WireSet ws3 = new WireSet(9);
OrGate or = new OrGate();
XorGate xor = new XorGate();
MultiBitAndGate mbag3 = new MultiBitAndGate(3);
MultiBitAndGate mbag4 = new MultiBitAndGate(4);
MultiBitAndGate mbag5 = new MultiBitAndGate(5);
MultiBitAndGate mbag6 = new MultiBitAndGate(6);
MultiBitAndGate mbag7 = new MultiBitAndGate(7);
MultiBitAndGate mbag8 = new MultiBitAndGate(8);
MultiBitOrGate mbog3 = new MultiBitOrGate(3);
MultiBitOrGate mbog4 = new MultiBitOrGate(4);
MultiBitOrGate mbog5 = new MultiBitOrGate(5);
MultiBitOrGate mbog6 = new MultiBitOrGate(6);
MultiBitOrGate mbog7 = new MultiBitOrGate(7);
MultiBitOrGate mbog8 = new MultiBitOrGate(8);
MuxGate mg = new MuxGate();
Demux dmg = new Demux();
BitwiseOrGate bwog0 = new BitwiseOrGate(0);
BitwiseOrGate bwog1 = new BitwiseOrGate(1);
BitwiseOrGate bwog2 = new BitwiseOrGate(2);
BitwiseOrGate bwog3 = new BitwiseOrGate(3);
BitwiseOrGate bwog4 = new BitwiseOrGate(4);
BitwiseOrGate bwog5 = new BitwiseOrGate(5);
BitwiseOrGate bwog6 = new BitwiseOrGate(6);
BitwiseOrGate bwog7 = new BitwiseOrGate(7);
BitwiseAndGate bwag2 = new BitwiseAndGate(2);
BitwiseAndGate bwag3 = new BitwiseAndGate(3);
BitwiseAndGate bwag4 = new BitwiseAndGate(4);
BitwiseNotGate bwng2 = new BitwiseNotGate(2);
BitwiseNotGate bwng3 = new BitwiseNotGate(3);
BitwiseNotGate bwng4 = new BitwiseNotGate(4);
BitwiseDemux bwdm2 = new BitwiseDemux(2);
BitwiseDemux bwdm3 = new BitwiseDemux(3);
BitwiseDemux bwdm4 = new BitwiseDemux(4);
BitwiseMux bwmx2 = new BitwiseMux(2);
BitwiseMux bwmx3 = new BitwiseMux(3);
BitwiseMux bwmx4 = new BitwiseMux(4);
BitwiseMultiwayMux bwmwm = new BitwiseMultiwayMux(3, 3);
BitwiseMultiwayDemux bwmwdm = new BitwiseMultiwayDemux(3, 3);
HalfAdder ha = new HalfAdder();
FullAdder fa = new FullAdder();
MultiBitAdder mba = new MultiBitAdder(4);
ALU alu = new ALU(4);
System.Console.WriteLine(or.TestGate().ToString());
System.Console.WriteLine(xor.TestGate().ToString());
System.Console.WriteLine(mbag3.TestGate().ToString());
System.Console.WriteLine(mbag4.TestGate().ToString());
System.Console.WriteLine(mbag5.TestGate().ToString());
System.Console.WriteLine(mbag6.TestGate().ToString());
System.Console.WriteLine(mbag7.TestGate().ToString());
System.Console.WriteLine(mbag8.TestGate().ToString());
System.Console.WriteLine(mbog3.TestGate().ToString());
System.Console.WriteLine(mbog4.TestGate().ToString());
System.Console.WriteLine(mbog5.TestGate().ToString());
System.Console.WriteLine(mbog6.TestGate().ToString());
System.Console.WriteLine(mbog7.TestGate().ToString());
System.Console.WriteLine(mbog8.TestGate().ToString());
System.Console.WriteLine(mg.TestGate().ToString());
System.Console.WriteLine(dmg.TestGate().ToString());
System.Console.WriteLine(bwag2.TestGate().ToString());
System.Console.WriteLine(bwag3.TestGate().ToString());
System.Console.WriteLine(bwag4.TestGate().ToString());
System.Console.WriteLine(bwog0.TestGate().ToString());
System.Console.WriteLine(bwog1.TestGate().ToString());
System.Console.WriteLine(bwog2.TestGate().ToString());
System.Console.WriteLine(bwog3.TestGate().ToString());
System.Console.WriteLine(bwog4.TestGate().ToString());
System.Console.WriteLine(bwog5.TestGate().ToString());
System.Console.WriteLine(bwog6.TestGate().ToString());
System.Console.WriteLine(bwog7.TestGate().ToString());
ws.Set2sComplement(-5);
System.Console.WriteLine(ws.Get2sComplement().ToString());
int test = 0;
int test2 = 0;
for (int i = 1; i < 50; i++)
{
ws2.SetValue(i);
if (ws2.GetValue() != i)
{
test = 10;
}
}
for (int i = -34; i < 50; i++)
{
ws3.Set2sComplement(i);
if (ws3.Get2sComplement() != i)
{
test2 = 10;
}
}
System.Console.WriteLine(test);
System.Console.WriteLine(test2);
System.Console.WriteLine(bwng2.TestGate().ToString());
System.Console.WriteLine(bwng3.TestGate().ToString());
System.Console.WriteLine(bwng4.TestGate().ToString());
System.Console.WriteLine(bwdm2.TestGate().ToString());
System.Console.WriteLine(bwdm3.TestGate().ToString());
System.Console.WriteLine(bwdm4.TestGate().ToString());
System.Console.WriteLine(bwmx2.TestGate().ToString());
System.Console.WriteLine(bwmx3.TestGate().ToString());
System.Console.WriteLine(bwmx4.TestGate().ToString());
System.Console.WriteLine(bwmwm.TestGate().ToString());
System.Console.WriteLine(bwmwdm.TestGate().ToString());
System.Console.WriteLine(ha.TestGate().ToString());
System.Console.WriteLine(fa.TestGate().ToString());
System.Console.WriteLine(mba.TestGate().ToString());
System.Console.WriteLine(alu.TestGate().ToString());
}
