Join the output of a stored procedure with a table

I have created a procedure that splits a multi-line street address like
Suite 1
Tower 2
345 Sixth Street
into Address1, Address2, Address3.

The inputs to the procedure are @EntityId and @CompoundAddress

I want to join the result with a temporary table that contains
EntityId, City, StateOrProvince, PostalCode, Country, and the compound address

I want to create a SELECT statement that joins the two tables and presents all the fields

Can someone help me figure out how to do that?

Here is the code I wrote that SQL Server doesn't like:
SET @ThisRow = 14
WHILE @ThisRow <= 14
BEGIN
SET @InAddress = (SELECT BillingStreet FROM @Source WHERE RowNum = @ThisRow)
SELECT A.Address2, A.Address2, A.Address3, E.City, E.StateProvince, E.PostalCode, E.Country FROM
@Source AS E INNER JOIN
(EXEC upSplitCompoundAddress @EntityId, @InAddress) AS A ON A.EntityId = E.EntityId
SET @ThisRow = @ThisRow + 1
END