IBM System/360 Field Engineering Manual

CHANNEL STATUS WORD
I
Ker I
o o o o I
Command Address
I
0 3 4
7 8
31
I
Status
I
Count
I
32 47 48
63
32
Attention
40
Program- controlled
interruption
33
Status modifie-r
41
Incorrect length
34 Control unit end
42
Program check
35
Busy
43
Protection check
36
Channel end
44
Channel data check
37 Device end
45
Channel control check
38 Unit check
46 Interface control check
39
Unit exception
47
Chaining check
Count: Bits 48-63 form the residual count for the last CCW used.
PROGRAM STATUS WORD
System Mask
I Ker I
78 1112
32 33 34 35 36 39 40
0-7 System mask
0 Multiplexer channel ~sk
1 Selector channel 1 mask
2 Selector channel 2 mask
3 Selector channel 3 mask.
4 Selector channel 4 mas.k.
5 Selector channel 5 mask
6 Selector channel 6 mask
7 External mask
8-11 Protection key
12 Asen mode (A)
13 Machine check mask (M)
IBM CONFIDENTIAL
AMWP I Interruption Code
1516
Instruction Address
14 Wait state (W)
15 Problem state (P)
16-31 Interruption code
31
63
32-33 Instruction Length code (ILC)
34-35 Condition code (CC)
36-39 Program mask
36 Fixed-point oVerflow mask
37 Decimal overflow mask
38 Exponent underflow mask
39 Significance mask
40-63 Instruction address
S/360 37

IBM System/360 Specifications

General

Brand	IBM
Model	System/360
Category	Desktop
Language	English