kevtris is it possible to determine the number of stack levels in HD388x0 by altering your dumping program? For example, call from address A 1 time, then from address B xx times, and return xx+1 times to see whether or not address A is lost.

The reason is, CGL Super Kong works ok if I increase the stack size in the mcu emu core. This game has the B revision of the MCU. Hitachi docs say the stack size is 4, maybe they increased it on the B rev.