SQL & PL/SQL :: How To Pass In Dynamic Variable For Calling Store Procedure

I have a table that has 10 columns which is used to store the customer information (e.g Gender, Age, Name). And i have wrote a store procedure to compare the before and after value of column since there has a parameter to control which column need/no need to be updated while the value being changed.

For example, master table "CUST" has column (NAME, GENDER, AGE). "CUST_TEMP" is a temporary table to store the input image which has the same table structure as "CUST".

DECLARE
bef_val CUST%ROWTYPE;
aft_val CUST_TEMP%ROWTYPE;
BEGIN
SELECT * INTO bef_val FROM CUST WHERE name = 'ABC';
SELECT * INTO aft_val FROM CUST_TEMP WHERE name = 'ABC';
[code]....

For the above case, i need to type 3 times of "sp_compare_val ( bef_val.xxx, aft_val.xxx )" on the program. And if the table has more than 10 columns, i need to type more than 10 times.Thus, is it possible to pass in a dynamic variable while calling the store procedure. let say, where the 'xxx' can be definable?