protected virtual string TranslateDelayAssignment(Computation.Assignment node, Context context)
{
string eq = InstructionTranslator.QuickTranslate((Context)context.Base().Push(node.State, node.Equation));
StringBuilder ret = new StringBuilder();
var ds = (DelayedState)node.State;
uint size = (uint)System.Math.Round(ds.Delay / Cdn.RawC.Options.Instance.DelayTimeStep);
DataTable.DataItem counter = context.Program.DelayedCounters[new DelayedState.Size(size)];
DataTable table = context.Program.DelayHistoryTable(ds);
ret.AppendFormat("{0}[{1}] = {2}[{3}[{4}]];",
context.This(node.Item.Table),
node.Item.AliasOrIndex,
context.This(table),
context.This(context.Program.DelayedCounters),
counter.DataIndex);
ret.AppendLine();
ret.AppendFormat("{0}[{1}[{2}]] = {3};",
context.This(table),
context.This(context.Program.DelayedCounters),
counter.DataIndex,
eq);
return(ret.ToString());
}
protected virtual string Translate(Computation.Loop node, Context context)
{
StringBuilder ret = new StringBuilder();
Context ctx = context.Clone(context.Program, context.Options, node.Expression, node.Mapping);
ret.AppendFormat("for ({0} = 0; i < {1}; ++i)",
context.DeclareValueVariable("int", "i"),
node.Items.Count);
ret.AppendLine();
ret.AppendLine("{");
if (Cdn.RawC.Options.Instance.Verbose)
{
var dt = (node.IndexTable[0].Object as Computation.Loop.Index).DataItem;
ret.AppendFormat("\t{0} {1}[{2}] = {3}({4}",
context.BeginComment,
context.This(context.Program.StateTable),
dt.AliasOrIndex.Replace(context.BeginComment, "//").Replace(context.EndComment, "//"),
context.ThisCall(node.Function.Name),
context.This(context.Program.StateTable));
var eq = node.Items[0].Equation;
foreach (Tree.Embedding.Argument arg in node.Function.OrderedArguments)
{
Tree.Node subnode = eq.FromPath(arg.Path);
DataTable.DataItem it = context.Program.StateTable[subnode];
ret.AppendFormat(", {0}[{1}]",
context.This(context.Program.StateTable),
it.AliasOrIndex.Replace(context.BeginComment, "//").Replace(context.EndComment, "//"));
}
ret.Append("); ");
ret.Append(context.EndComment);
ret.AppendLine();
}
ret.AppendLine(Context.Reindent(TranslateAssignment(String.Format("{0}[i][0]",
context.This(node.IndexTable)),
ctx),
"\t"));
ret.Append("}");
return(ret.ToString());
}
public string AddedIndex(DataTable.DataItem item, int added)
{
if (added == 0)
{
return(item.AliasOrIndex);
}
if (d_options.SymbolicNames)
{
return(String.Format("{0} + {1}", item.AliasOrIndex, added));
}
else
{
return((item.DataIndex + added).ToString());
}
}
/*
* Delay operator instructions are translated to a simple lookup in
* the statetable where they delayed expressions are stored.
*/
protected virtual string TranslateDelayed(InstructionCustomOperator instruction, Context context)
{
OperatorDelayed delayed = (OperatorDelayed)instruction.Operator;
double delay;
if (!Knowledge.Instance.LookupDelay(instruction, out delay))
{
throw new NotSupportedException("Unable to determine delay of delayed operator");
}
DataTable.DataItem item = context.Program.StateTable[new DelayedState.Key(delayed, delay)];
return(String.Format("{0}[{1}]",
context.This(context.Program.StateTable),
item.AliasOrIndex));
}
public void Add(DataTable.DataItem target, Tree.Node equation)
{
d_items.Add(new Item(target, equation));
// Add row to index table
d_indextable.Add(new Index((ulong)target.DataIndex, target));
d_indextable.IntegerTypeSize = (ulong)target.DataIndex;
foreach (Tree.Embedding.Argument arg in d_function.OrderedArguments)
{
Tree.Node subnode = equation.FromPath(arg.Path);
DataTable.DataItem it = d_program.StateTable[subnode];
d_indextable.Add(new Index((ulong)it.DataIndex, it)).Type = (it.Type | DataTable.DataItem.Flags.Index);
d_indextable.IntegerTypeSize = (ulong)it.DataIndex;
}
}
protected virtual string Translate(InstructionVariable instruction, Context context)
{
Cdn.Variable prop = instruction.Variable;
if (!context.Program.StateTable.Contains(prop))
{
throw new NotImplementedException(String.Format("The variable `{0}' is not implemented", prop.FullName));
}
DataTable.DataItem item = context.Program.StateTable[prop];
if (instruction.HasSlice)
{
Cdn.Dimension dim;
int[] slice = instruction.GetSlice(out dim);
if (context.SupportsFirstClassArrays)
{
return(String.Format("{0}[{1}][{2}]",
context.This(context.Program.StateTable),
item.AliasOrIndex,
slice[0]));
}
else
{
return(String.Format("{0}[{1}]",
context.This(context.Program.StateTable),
context.AddedIndex(item, slice[0])));
}
}
else
{
return(String.Format("{0}[{1}]",
context.This(context.Program.StateTable),
item.AliasOrIndex));
}
}
public State(DataTable.DataItem item)
{
d_item = item;
}
protected virtual string Translate(Computation.IncrementDelayedCounters node, Context context)
{
StringBuilder ret = new StringBuilder();
ret.AppendFormat("for ({0} = 0; i < {1}; ++i)",
context.DeclareValueVariable("int", "i"),
node.Counters.Count);
ret.AppendLine();
ret.AppendLine("{");
ret.AppendFormat("\tif ({0}[i] == {1}[i] - 1)", context.This(node.Counters), context.This(node.CountersSize));
ret.AppendLine();
ret.AppendLine("\t{");
ret.AppendFormat("\t\t{0}[i] = 0;", context.This(node.Counters));
ret.AppendLine();
ret.AppendLine("\t}");
ret.AppendLine("\telse");
ret.AppendLine("\t{");
ret.AppendFormat("\t\t++{0}[i];", context.This(node.Counters));
ret.AppendLine();
ret.AppendLine("\t}");
ret.Append("}");
Dictionary <DataTable, bool> seen = new Dictionary <DataTable, bool>();
bool first = true;
// Update counter loop indices
foreach (Computation.Loop loop in context.Program.Loops)
{
DataTable table = loop.IndexTable;
if (seen.ContainsKey(table))
{
continue;
}
for (int i = 0; i < table.Count; ++i)
{
DataTable.DataItem item = table[i];
if (item.HasType(DataTable.DataItem.Flags.Delayed))
{
int r = i % table.Columns;
int c = i / table.Columns;
Computation.Loop.Index sidx = (Computation.Loop.Index)item.Key;
DataTable.DataItem state = context.Program.StateTable[(int)sidx.Value];
DelayedState.Key delayed = (DelayedState.Key)state.Key;
DataTable.DataItem idx = context.Program.DelayedCounters[delayed.Size];
if (first)
{
ret.AppendLine();
first = false;
}
ret.AppendLine();
ret.AppendFormat("{0}[{1}][{2}] = {3} + {4}[{5}];",
context.This(table), r, c,
sidx.Value,
context.This(context.Program.DelayedCounters), idx.DataIndex);
}
}
seen[table] = true;
}
return(ret.ToString());
}
protected virtual string TranslateV(InstructionVariable instruction, Context context)
{
Cdn.Variable prop = instruction.Variable;
if (!context.Program.StateTable.Contains(prop))
{
throw new NotImplementedException(String.Format("The variable `{0}' is not implemented", prop.FullName));
}
DataTable.DataItem item = context.Program.StateTable[prop];
string ret = null;
if (!context.SupportsFirstClassArrays)
{
ret = context.PeekRet();
}
int size = prop.Dimension.Size();
int offset = 0;
if (instruction.HasSlice)
{
Cdn.Dimension dim;
var slice = instruction.GetSlice(out dim);
// This is a multidim slice for sure, check if it's just linear
if (!Context.IndicesAreContinuous(slice))
{
if (context.SupportsFirstClassArrays)
{
var v = context.This(context.Program.StateTable);
var vi = String.Format("{0}[{1}]", v, item.AliasOrIndex);
return(context.ArraySliceIndices(vi, slice));
}
else
{
StringBuilder sret = new StringBuilder("(");
// Make single element assignments
for (int i = 0; i < slice.Length; ++i)
{
if (i != 0)
{
sret.Append(", ");
}
sret.AppendFormat("({0})[{1}] = {2}[{3}]",
ret,
i,
context.This(context.Program.StateTable),
context.AddedIndex(item, slice[i]));
}
sret.AppendFormat(", {0})", ret);
return(sret.ToString());
}
}
else
{
offset = slice[0];
size = slice.Length;
}
}
// Here we should return from "offset" to "offset + size"
if (ret != null)
{
// We need to write the results in "ret". Make a memcpy
return(context.MemCpy(ret,
"0",
context.This(context.Program.StateTable),
context.AddedIndex(item, offset),
"ValueType",
size));
}
else if (context.SupportsPointers)
{
// Simply return the correct offset of the continous slice
return(String.Format("({0} + {1})",
context.This(context.Program.StateTable),
context.AddedIndex(item, offset)));
}
else if (context.SupportsFirstClassArrays)
{
// Simply return the slice
var v = context.This(context.Program.StateTable);
if (offset == 0 && size == item.Dimension.Size())
{
return(String.Format("{0}[{1}]", v, item.AliasOrIndex));
}
else
{
return(context.ArraySlice(String.Format("{0}[{1}]", v, item.AliasOrIndex),
offset.ToString(),
(offset + size).ToString()));
}
}
else
{
throw new Exception("Unsupported multidim variable case!");
}
}
public Assignment(State state, DataTable.DataItem item, Tree.Node equation)
{
d_state = state;
d_item = item;
d_equation = equation;
}
public Index(ulong val, DataTable.DataItem item)
{
Value = val;
DataItem = item;
}
public Item(DataTable.DataItem target, Tree.Node equation)
{
Target = target;
Equation = equation;
}
