Except as otherwise provided in this paragraph, the amount of the homestead exemption granted to disabled veterans shall be the greater of $32,500.00 or the maximum amount which may be granted to a disabled veteran under Section 802 of Title 38 of the United States Code as hereafter amended. Such exemption shall be granted to: those persons eligible for such exemption on June 30, 1983; to disabled American veterans of any war or armed conflict who are disabled due to loss or loss of use of one lower extremity together with the loss or loss of use of one upper extremity which so affects the functions of balance or propulsion as to preclude locomotion without the aid of braces, crutches, canes, or a wheelchair; and to disabled veterans hereafter becoming eligible for assistance in acquiring housing under Section 801 of the United States Code as hereafter amended. The General Assembly may by general law provide for a different amount or a different method of determining the amount of or eligibility for the homestead exemption granted to disabled veterans. Any such law shall be enacted by a simple majority of the votes of all the members to which each house is entitled and may become effective without referendum. Such law may provide that the amount of or eligibility for the exemption shall be determined by reference to laws enacted by the United States Congress.