/// <summary>
/// Builds a list of PipelineItems
/// </summary>
/// <param name="cycle">Zero-based program cycle number</param>
/// <param name="instructions">Instructions for pipeline</param>
/// <returns></returns>
private static List <PipelineItem> BuildPipelineItems(int cycle, List <string> instructions)
{
var pipelineItems = new List <PipelineItem>();
for (int i = 0; i < instructions.Count; i++)
{
var instr = instructions[i];
long? inputA = null;
long? inputB = null;
DevicePort?inputASource = null;
DevicePort?inputBSource = null;
string outputFormula = null;
if (i > 0)
{
switch (instr ?? "")
{
case "set0":
outputFormula = "0";
break;
case "set1":
outputFormula = "1";
break;
case "seta":
inputA = Mux3Model.OutputCalc(Bank.Bank_A, cycle - i + 1).Value;
inputASource = DevicePort.Mux_3A;
outputFormula = "A";
break;
case "setb":
inputB = Mux3Model.OutputCalc(Bank.Bank_B, cycle - i + 1).Value;
inputBSource = DevicePort.Mux_3B;
outputFormula = "B";
break;
case "nega":
inputA = Mux3Model.OutputCalc(Bank.Bank_A, cycle - i + 1).Value;
inputASource = DevicePort.Mux_3A;
outputFormula = "-A";
break;
case "negb":
inputB = Mux3Model.OutputCalc(Bank.Bank_B, cycle - i + 1).Value;
inputBSource = DevicePort.Mux_3B;
outputFormula = "-B";
break;
case "passrama":
inputA = DataRamModel.OutputCalc(Bank.Bank_A, cycle - i + 1).Value;
inputASource = DevicePort.DataRam_A;
outputFormula = "Ram A";
break;
case "passramb":
inputB = DataRamModel.OutputCalc(Bank.Bank_B, cycle - i + 1).Value;
inputBSource = DevicePort.DataRam_B;
outputFormula = "Ram B";
break;
case "add":
inputA = Mux3Model.OutputCalc(Bank.Bank_A, cycle - i + 1).Value;
inputASource = DevicePort.Mux_3A;
inputB = Mux3Model.OutputCalc(Bank.Bank_B, cycle - i + 1).Value;
inputBSource = DevicePort.Mux_3B;
outputFormula = "A+B";
break;
case "tdeca":
inputA = Mux3Model.OutputCalc(Bank.Bank_A, cycle - i + 1).Value;
inputASource = DevicePort.Mux_3A;
outputFormula = "A-1";
break;
case "suba":
inputA = Mux3Model.OutputCalc(Bank.Bank_A, cycle - i + 1).Value;
inputASource = DevicePort.Mux_3A;
inputB = Mux3Model.OutputCalc(Bank.Bank_B, cycle - i + 1).Value;
inputBSource = DevicePort.Mux_3B;
outputFormula = "B-A";
break;
case "subb":
inputA = Mux3Model.OutputCalc(Bank.Bank_A, cycle - i + 1).Value;
inputASource = DevicePort.Mux_3A;
inputB = Mux3Model.OutputCalc(Bank.Bank_B, cycle - i + 1).Value;
inputBSource = DevicePort.Mux_3B;
outputFormula = "A-B";
break;
case "absa":
inputA = Mux3Model.OutputCalc(Bank.Bank_A, cycle - i + 1).Value;
inputASource = DevicePort.Mux_3A;
outputFormula = "abs(A)";
break;
case "absb":
inputB = Mux3Model.OutputCalc(Bank.Bank_B, cycle - i + 1).Value;
inputBSource = DevicePort.Mux_3B;
outputFormula = "abs(B)";
break;
case "addabsa":
inputA = Mux3Model.OutputCalc(Bank.Bank_A, cycle - i + 1).Value;
inputASource = DevicePort.Mux_3A;
inputB = Mux3Model.OutputCalc(Bank.Bank_B, cycle - i + 1).Value;
inputBSource = DevicePort.Mux_3B;
outputFormula = "abs(A)+B";
break;
case "addabsb":
inputA = Mux3Model.OutputCalc(Bank.Bank_A, cycle - i + 1).Value;
inputASource = DevicePort.Mux_3A;
inputB = Mux3Model.OutputCalc(Bank.Bank_B, cycle - i + 1).Value;
inputBSource = DevicePort.Mux_3B;
outputFormula = "A+abs(B)";
break;
case "hold":
outputFormula = "ALU Hold";
break;
case "englobals":
outputFormula = "";
break;
case "ensatrnd":
outputFormula = "";
break;
case "ensem":
outputFormula = "";
break;
case "setsem":
outputFormula = "";
break;
case "clearsem":
outputFormula = "";
break;
case "tsuba":
inputA = Mux3Model.OutputCalc(Bank.Bank_A, cycle - i + 1).Value;
inputASource = DevicePort.Mux_3A;
inputB = Mux3Model.OutputCalc(Bank.Bank_B, cycle - i + 1).Value;
inputBSource = DevicePort.Mux_3B;
outputFormula = "B-A thr";
break;
case "tsubb":
inputA = Mux3Model.OutputCalc(Bank.Bank_A, cycle - i + 1).Value;
inputASource = DevicePort.Mux_3A;
inputB = Mux3Model.OutputCalc(Bank.Bank_B, cycle - i + 1).Value;
inputBSource = DevicePort.Mux_3B;
outputFormula = "A-B thr";
break;
case "taddabsa":
inputA = Mux3Model.OutputCalc(Bank.Bank_A, cycle - i + 1).Value;
inputASource = DevicePort.Mux_3A;
inputB = Mux3Model.OutputCalc(Bank.Bank_B, cycle - i + 1).Value;
inputBSource = DevicePort.Mux_3B;
outputFormula = "A+abs(B) thr";
break;
case "taddabsb":
inputA = Mux3Model.OutputCalc(Bank.Bank_A, cycle - i + 1).Value;
inputASource = DevicePort.Mux_3A;
inputB = Mux3Model.OutputCalc(Bank.Bank_B, cycle - i + 1).Value;
inputBSource = DevicePort.Mux_3B;
outputFormula = "A+abs(B) thr";
break;
case "sqlcmp":
inputA = Mux3Model.OutputCalc(Bank.Bank_A, cycle - i + 1).Value;
inputASource = DevicePort.Mux_3A;
outputFormula = "A -> sqlcmp";
break;
case "sqlcnt":
inputA = Mux3Model.OutputCalc(Bank.Bank_A, cycle - i + 1).Value;
inputASource = DevicePort.Mux_3A;
outputFormula = "A>>16 -> sqcval";
break;
case "sqa":
inputA = Mux3Model.OutputCalc(Bank.Bank_A, cycle - i + 1).Value;
inputASource = DevicePort.Mux_3A;
outputFormula = "Squelch(A)";
break;
case "sqb":
inputB = Mux3Model.OutputCalc(Bank.Bank_B, cycle - i + 1).Value;
inputBSource = DevicePort.Mux_3B;
outputFormula = "Squelch(B)";
break;
}
}
var pipelineItem = new PipelineItem();
var lvA = new LabeledValue <long?>("In A:");
lvA.Value = inputA.HasValue ? inputA.Value : (long?)null;
lvA.FormattedValue = FormatValue(VALUE_WIDTH, lvA.Value);
pipelineItem.InputA = lvA;
var lvB = new LabeledValue <long?>("In B:");
lvB.Value = inputB.HasValue ? inputB.Value : (long?)null;
lvB.FormattedValue = FormatValue(VALUE_WIDTH, lvB.Value);
pipelineItem.InputB = lvB;
var lvASrc = new LabeledValue <DevicePort?>("Src A:");
lvASrc.Value = inputASource == DevicePort.Default ? (DevicePort?)null : inputASource;
lvASrc.FormattedValue = lvASrc.Value.ToString();
pipelineItem.InputASource = lvASrc;
var lvBSrc = new LabeledValue <DevicePort?>("Src B:");
lvBSrc.Value = inputBSource == DevicePort.Default ? (DevicePort?)null : inputBSource;
lvBSrc.FormattedValue = lvBSrc.Value.ToString();
pipelineItem.InputBSource = lvBSrc;
var lvOutputFormula = new LabeledValue <string>("Equation:");
lvOutputFormula.Value = outputFormula;
lvOutputFormula.FormattedValue = outputFormula;
pipelineItem.OutputFormula = lvOutputFormula;
pipelineItems.Add(pipelineItem);
}
return(pipelineItems);
}
/// <summary>
/// Input connections to device
/// </summary>
/// <param name="bankID">BankID of the device</param>
/// <param name="cycle">Zero-based program cycle number</param>
/// <returns></returns>
private static List <Connection> Connections(Bank bankID, int cycle)
{
var conns = new List <Connection>();
DevicePort mux1PortOut = DevicePort.Default;
DevicePort dataRamPortOut = DevicePort.Default;
DevicePort mux2Mux1PortIn = DevicePort.Default;
DevicePort mux2DataRamPortIn = DevicePort.Default;
PortStatus mux1PortOut_Stat;
PortStatus dataRamPortOut_Stat;
PortStatus mux2Mux1PortIn_Stat;
PortStatus mux2DataRamPortIn_Stat;
var mux1_label = Mux1Model.OutputCalc(bankID, cycle).FormattedValue;
var dataRam_label = DataRamModel.OutputCalc(bankID, cycle).FormattedValue;
InputsUsed(bankID, cycle,
out mux1PortOut_Stat,
out dataRamPortOut_Stat,
out mux2Mux1PortIn_Stat,
out mux2DataRamPortIn_Stat);
switch (bankID)
{
case Bank.Bank_A:
mux1PortOut = DevicePort.Mux_1A;
dataRamPortOut = DevicePort.DataRam_A;
mux2Mux1PortIn = DevicePort.Mux_2A;
mux2DataRamPortIn = DevicePort.Mux_2A;
break;
case Bank.Bank_B:
mux1PortOut = DevicePort.Mux_1B;
dataRamPortOut = DevicePort.DataRam_B;
mux2Mux1PortIn = DevicePort.Mux_2B;
mux2DataRamPortIn = DevicePort.Mux_2B;
break;
default:
break;
}
conns.Add(new Connection(
BusType.Data,
mux1PortOut,
mux1PortOut_Stat,
mux1_label,
null,
mux2Mux1PortIn,
mux2Mux1PortIn_Stat));
conns.Add(new Connection(
BusType.Data,
dataRamPortOut,
dataRamPortOut_Stat,
dataRam_label,
null,
mux2DataRamPortIn,
mux2DataRamPortIn_Stat));
return(conns);
}
/// <summary>
/// Input connections to device
/// </summary>
/// <param name="cycle">Zero-based program cycle number</param>
/// <param name="pipelineItems"></param>
/// <returns></returns>
private static List <Connection> Connections(int cycle, List <PipelineItem> pipelineItems)
{
var conns = new List <Connection>();
var instr = Instr(cycle - PIPELINE_DELAY);
PortStatus statMux3A_ALUIn;
PortStatus statMux3B_ALUIn;
PortStatus statRamA_ALUIn;
PortStatus statRamB_ALUIn;
statMux3A_ALUIn = pipelineItems[1].InputASource.Value == DevicePort.Mux_3A
? PortStatus.Active
: PortStatus.Inactive;
statMux3B_ALUIn = pipelineItems[1].InputBSource.Value == DevicePort.Mux_3B
? PortStatus.Active
: PortStatus.Inactive;
statRamA_ALUIn = pipelineItems[1].InputASource.Value == DevicePort.DataRam_A
? PortStatus.Active
: PortStatus.Inactive;
statRamB_ALUIn = pipelineItems[1].InputBSource.Value == DevicePort.DataRam_B
? PortStatus.Active
: PortStatus.Inactive;
var activeLabel_Mux_3A = Mux3Model.OutputCalc(Bank.Bank_A, cycle).FormattedValue;
var activeLabel_Mux_3B = Mux3Model.OutputCalc(Bank.Bank_B, cycle).FormattedValue;
var activeLabel_Ram_A = DataRamModel.OutputCalc(Bank.Bank_A, cycle).FormattedValue;
var activeLabel_Ram_B = DataRamModel.OutputCalc(Bank.Bank_B, cycle).FormattedValue;
// Show ALU inputs based on connection
// non-banked
conns.Add(new Connection(
BusType.Data,
DevicePort.Mux_3A,
PortStatus.Active,
activeLabel_Mux_3A,
null,
DevicePort.ALU,
statMux3A_ALUIn));
conns.Add(new Connection(
BusType.Data,
DevicePort.Mux_3B,
PortStatus.Active,
activeLabel_Mux_3B,
null,
DevicePort.ALU,
statMux3B_ALUIn));
conns.Add(new Connection(
BusType.Data,
DevicePort.DataRam_A,
PortStatus.Active,
activeLabel_Ram_A,
null,
DevicePort.ALU,
statRamA_ALUIn));
conns.Add(new Connection(
BusType.Data,
DevicePort.DataRam_B,
PortStatus.Active,
activeLabel_Ram_B,
null,
DevicePort.ALU,
statRamB_ALUIn));
return(conns);
}
/// <summary>
/// Input to the device for the given cycle
/// </summary>
/// <param name="bankID">BankID of the device</param>
/// <param name="cycle">Zero-based program cycle number</param>
/// <param name="input0">First input</param>
/// <param name="input0src">First input source</param>
/// <param name="input1">Second input</param>
/// <param name="input1src">Second input source</param>
private static void InputCalc(Bank bankID, int cycle,
out LabeledValue <long?> input0,
out LabeledValue <DevicePort?> input0src,
out LabeledValue <long?> input1,
out LabeledValue <DevicePort?> input1src)
{
var valLabel = "In:";
var srcLabel = "Src:";
input0 = new LabeledValue <long?>(valLabel);
input1 = new LabeledValue <long?>(valLabel);
input0src = new LabeledValue <DevicePort?>(srcLabel);
input1src = new LabeledValue <DevicePort?>(srcLabel);
// Input latching occurs as follows (variant pipeline):
// Pipeline [t-1] [now]
// Cycle cycle cycle-1
// dmux(_r_, _r_) ->ram in output->
// dmux(__, __) ->mux1in & output->
var ramSource = bankID == Bank.Bank_A
? DevicePort.DataRam_A
: DevicePort.DataRam_B;
var mux1Source = bankID == Bank.Bank_A
? DevicePort.Mux_1A
: DevicePort.Mux_1B;
// Get [now] / cycle-1 input values
var instr1 = InstrForCycle(bankID, cycle - 1);
switch (instr1)
{
// These inputs latched from data ram in [t-1]
case "bra":
case "sra":
case "brm":
case "srm":
input1.Value = DataRamModel.OutputCalc(bankID, cycle - 1).Value;
input1.FormattedValue = FormatValue(VALUE_WIDTH, input1.Value);
input1src.Value = ramSource;
input1src.FormattedValue = input1src.Value.ToString();
break;
// These inputs latch from mux1 [now]
case "ba":
case "sa":
case "bm":
case "sm":
input1.Value = Mux1Model.OutputCalc(bankID, cycle).Value;
input1.FormattedValue = FormatValue(VALUE_WIDTH, input1.Value);
input1src.Value = mux1Source;
input1src.FormattedValue = input1src.Value.ToString();
break;
}
// Get [t-1] / cycle input values
var instr0 = InstrForCycle(bankID, cycle);
switch (instr0)
{
case "bra":
case "sra":
case "brm":
case "srm":
input0.Value = DataRamModel.OutputCalc(bankID, cycle).Value;
input0.FormattedValue = FormatValue(VALUE_WIDTH, input0.Value);
input0src.Value = ramSource;
input0src.FormattedValue = input0src.Value.ToString();
break;
// no op:
case "ba":
case "sa":
case "bm":
case "sm":
default:
break;
}
}