/// <summary>
/// Construct the PIC register's traits based on the given <see cref="SFRDef"/> descriptor.
/// </summary>
/// <param name="sfr">The PIC register descriptor.</param>
/// <exception cref="ArgumentNullException">Thrown if <paramref name="sfr"/> is null.</exception>
public PICRegisterTraits(ISFRRegister sfr)
{
if (sfr is null)
{
throw new ArgumentNullException(nameof(sfr));
}
if (string.IsNullOrEmpty(sfr.NMMRID))
{
RegAddress = new PICRegisterSizedUniqueAddress(PICDataAddress.Ptr(sfr.Addr), (int)sfr.BitWidth);
}
else
{
RegAddress = new PICRegisterSizedUniqueAddress(sfr.NMMRID, (int)sfr.BitWidth);
}
Name = sfr.Name;
Desc = sfr.Description;
Impl = sfr.ImplMask;
Access = AdjustString(sfr.AccessBits, '-');
MCLR = AdjustString(sfr.MCLR, 'u');
POR = AdjustString(sfr.POR, '0');
IsVolatile = sfr.IsVolatile;
IsIndirect = sfr.IsIndirect;
}
private PICRegisterStorage AddSFRRegister(ISFRRegister sfr, int regnum)
{
var reg = new PICRegisterStorage(sfr, regNumber)
{
BitAddress = 0UL
};
foreach (var sfld in sfr.BitFields)
{
if ((sfld.Name != sfr.Name) && (sfld.BitWidth != sfr.BitWidth))
{
var fld = new PICRegisterBitFieldStorage(reg, sfld);
if (!reg.BitFields.ContainsKey(fld.BitFieldSortKey))
{
if (symTable.AddRegisterBitField(fld))
{
reg.BitFields.Add(fld.BitFieldSortKey, fld);
continue;
}
}
}
}
return(reg);
}
/// <summary>
/// Constructor of a named PIC register.
/// </summary>
/// <param name="sfr">The SFR definition.</param>
/// <param name="number">The Reko index number of this register.</param>
public PICRegisterStorage(ISFRRegister sfr, int number)
: this(sfr.Name, number, 0, PrimitiveType.CreateWord(sfr.BitWidth), new PICRegisterTraits(sfr))
{
}
private static PICRegisterTraits GetTraits(ISFRRegister sfr) => new PICRegisterTraits(sfr);
