Exception Status Flag (Ep) - NEC UPD703116 User Manual

7.4.3 Exception status flag (EP)

The EP flag is bit 6 of PSW, and is a status flag used to indicate that exception processing is in progress. It is set
when an exception occurs.
31
PSW
0 0 0 0
Bit position
6 EP
188
CHAPTER 7 INTERRUPT/EXCEPTION PROCESSING FUNCTION
0 0 0 0 0 0 0 0 0 0 0
Bit name
Shows that exception processing is in progress.
0: Exception processing not in progress.
1: Exception processing in progress.
User's Manual U14492EJ5V0UD
8 7 6 5
0 0 0 0 0 0 0 0 0 NP EP ID
Function
4 3 2 1 0
Initial value
SAT CY OV S Z
00000020H