public FieldUnit(OperationRegion operationRegion, int startBitIndex, int numBits,
AccessType accessType, AccessAttrib accessAttrib,
LockRule lockRule, UpdateRule updateRule)
{
if (startBitIndex < 0 || (startBitIndex + numBits + 7) / 8 > (int)operationRegion.Length)
{
throw new ArgumentException("Field unit not in bounds of operation region");
}
this.operationRegion = operationRegion;
this.startBitIndex = startBitIndex;
this.numBits = numBits;
this.accessType = accessType;
this.accessAttrib = accessAttrib;
this.lockRule = lockRule;
this.updateRule = updateRule;
}
// SortedList will be Dictionary<string, FieldUnit> when generics are available
public static SortedList CreateFromFieldList(OperationRegion operationRegionNode,
FieldElement[] fieldList,
AccessType initialAccessType,
AccessAttrib initialAccessAttrib,
LockRule lockRule,
UpdateRule updateRule
)
{
SortedList result = new SortedList(); // = new Dictionary<string, FieldUnit>();
AccessType accessType = initialAccessType;
AccessAttrib accessAttrib = initialAccessAttrib;
int bitIndex = 0;
foreach (FieldElement fieldElement in fieldList)
{
switch (fieldElement.Tag)
{
case FieldElement.TagValue.NamedField:
AmlParser.NamedField namedField = fieldElement.GetAsNamedField();
result.Add(namedField.nameSeg.data,
new FieldUnit(operationRegionNode,
bitIndex, namedField.bitWidth,
accessType, accessAttrib, lockRule, updateRule));
bitIndex += namedField.bitWidth;
break;
case FieldElement.TagValue.ReservedField:
AmlParser.ReservedField reservedField = fieldElement.GetAsReservedField();
bitIndex += reservedField.bitWidth;
break;
case FieldElement.TagValue.AccessField:
AmlParser.AccessField accessField = fieldElement.GetAsAccessField();
accessType = accessField.accessType;
accessAttrib = accessField.accessAttrib;
break;
default:
throw new LoadException("Unhandled alternative in switch over 'FieldElement'");
}
}
return(result);
}
