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()); }