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Fig. 11-9 Interrupt Stack Operation when 17K Series Emulator is Used
Undefined
Undefined
Main routine
MAIN
B
A
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
Undefined
Interrupt A
Interrupt B
A
RET
B
A
B
A
A
Interrupt C
B
C
RETI
RETI
B
B
A
A
PD17062
129
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