Consider the following scenario: Function table F0, having functions A0, B0, and C0, is overridden by function table F1, having functions A1 and B1. If A1 needs to call A0, A1 must precede the call to A0 by an m_enable_funct_tbl call.
However, certain side effects occur when enabling and disabling function tables. By disabling Function A1, Function B1 also gets disabled since they share the same function table. So if A1 calls A0 and A0 needs to make a call to B1, B0 will be invoked instead of B1. If B1 needs to be invoked in the preceding scenario, A1 and B1 should be placed in two different function tables.