IBM System/370 145 Reference Summary page 141

Byte Bit
CPURTY - 1 B (Retry)
0
0-3 BY DST Spare
4
Dest Byte 0
5
Dest Byte 1
6
Dest Byte 2
7
Dest Byte 3 (RR116-118)
0
Error in Stg 2 Cycle
1
Type 1 Error
2
Type 2 Error
1
3
RTYFLG
Type 3 Error
4
Ext Dest (0
=
LS Dest)
5
Stg Word
6
Trap 2 Cycle Error
7
Unretriable
(RR012)
0
Spare
2
1-3
LS DST
LS Y-Addr
4-6 LS DST
LS X-Addr
7
Exp LS Dest (RR136)
0
Spare
3
1-3
EXT DST
External Y-Addr
4-6
EXT DST
External X-Addr
7
Spare
(RR136-148)
I
""' I
B;•
I
Spare - 1 E
I
By~1
Bit
I
Spare - 1 F
Ill
11.17