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Interruption Code
Dec
Hex
Binary
Program Interruption Cause
1
01
0000 0001
Operation
2
02
0000 0010
Privileged operation
3
03
0000 0011
Execute
4
04
0000 0100
Protection
5
05
0000 0101
Addressing
6
06
0000 0110
Specification
7
07
0000 0111
Data
8
08
0000 1000
Fixed-point overflow
9
09
0000 1001
Fixed-point divide
10
OA
0000 1010
Decimal overflow
11
OB
0000 1011
Decimal divide
12
oc
0000 1100
Exponent overflow
13
OD
0000 1101
Exponent underflow
14
OE
0000 1110
Significance
15
OF
0000 1111
Floating-point divide
Figure 1-62.
Program Interruption Codes
0
7
8
ll 12
15 16
System
Key
AMWP*
Mask*
0 Multiplexer channel mask
1 Selector channel 1 mask
2 Selector channel 2 mask
Interruption
Code
31 32
33 34
35
ILC
cc
13 Machine check mask (M)
14 Wait state (W)
15 Problem state (P)
36
3 Selector channel 3 mask
4 Selector channel 4 mask
5 Selector channel 5 mask
6 Selector channel 6 mask
7 Externa I mask
32-33 Instruction Length code (ILC)
34-35 Condition code (CC)
12 ASCII mode (A)
*A one-bit equals on, and permits an interrupt
Figure 1-63. Program Status Word (PSW)
1-76 (7/69)
36 Fixed-point overflow mask
37 Decimal overflow mask
38 Exponent underflow mask
39 Significance mask
39 40
63
Program
Instruction
Mask*
Address
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