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PER Event
Type
Storage
GR
of
Instr
A 1 tet-
Alter-
Exception
Ending Branch Fetch
ation
ation
Operation
S
-
Xl
-
-
Privileged operation
S
-
Xl
-
-
Execute
S
-
Xl
-
-
p'rotect ion
Instruction
S
-
_1
-
-
Operand
S or T
-
X
X+
X+
Addressing
_1
Instruction
S
-
-
-
Operand
S or T
-
X
X+
X+
Specification
Odd instruction address
S
-
-
-
-
Invalid PSW format
C
-
X
-
-
Other
S
-
X
-
-
Data
Invalid sign
S
-
X
-
-
Other
T
-
X
X+
X+
Fixed-po int overflow
C
-
X
-
X
Fixed-point divide
Division
S
-
X
-
-
Conversion
C
-
X
-
X
Decimal overflow
C
-
X
X
-
Decimal divide
S
-
X
-
-
Exponent overflow
C
-
X
-
-
Exponent underf10w
C
-
X
-
-
Significance
C
-
X
-
-
Float ing-po i nt divide
S
-
X
-
-
Special operation
S
-
X
-
-
Page access
Instruction
N
-
_1
-
-
Operand
N
-
X
X2
X2
Page state
S
-
X
-
-
Page transition
S
-
X
-
-
, Mon i tor event
C
-
X
-
-
Indication of PER Events (Part 1 of 2)
4~14
IBM 4300 Processors Principles of Operation
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