NEC PD17062 - Manual (Page 129)

129
µ
PD17062
Fig. 11-9 Interrupt Stack Operation when 17K Series Emulator is Used
If the RETI instruction is used on the emulator, the contents of the bank register and index enable flag of
interrupt B are restored.
MAIN MAIN
A
B
A
C B A MAIN
B B B B
RETI RETI
RET
A A A A
Undefined
Undefined
Main routine Interrupt A Interrupt B Interrupt C
Undefined