IBM System/360 2050

On
Off
Interrupt
QY110-70E
From Port
2 of 2
CLF 213
Convert Diagnose
lnsn to LCW Format
and Put in SOR
SOR (0-2) to Seq Ctr
SOR ( 4) to SESS
SOR (5) to PSS
QY110-F8B
SOR (6) to SS
Execute LCW
SOR (7) to 1/0 Mode St~
SOR (19-30) to ROAR - ._ _______ _,
I
I
Off
L_
Go to ROS kernel specified by ROAR:
1. Fetch LCW
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
Execute LCW
Ful I Scan-Out
Partial Scan-Out
Com, Mpx, and Sel Ch Scan-Out
Sel Ch Scan-Out
Scan-In
FLT Load Cal I
FLT Compare ond Branch
Go to I-Fetch
Reset Error and FLT Op Regs
Set or Reset lovert SAR Bit (16) Tgr
Any of following ROS kernels:
Log Local storage
Beat Local storage
Ripple Local storage
Fetch or Alter Bump storage
LCS Controls
Ignore Error-1/0 T gr
4) le±
0
To Part 2 of 2
I-Fetch
I
I
L
FLT Mode and
Load PB
Seq Ctr Mode
I
r ..... --=--::----=+--=...,,..--:I
Figures 25 and 26 I
Load FLT's and
I Go to MS mode I
L___ .J
MS Mode
I
-----,
I
I
Desired Adr to ROAR
I
I
- __ J
Then Go to ROS Mode
L __ _
QY110-F4E
FLT Load Call
(FLT op code A)
Execute Specified
ROS Kernel
Hardware
Reset FLT Op Reg,
Fetch LCW from MS
and Put in SOR
I
I
---
.-----~!
Log Trigger Entry
KH131-2G
MS Mode
Seq Ctr= 4
Log Tgr On
I
_J
Fig 18
G
Increment
Seq Ctr
KH321-7J, 7K
Force ROAR Adr (2CO)
Reset SS and SESS
No
I
I
I
I
I
I
I
I
I
HARDWARE
-- _J
QY410-2CO
Fetch LCW from
MS and Put in SOR
Actual Response Adr to 80
Mask or Return Adr to 84
QY410-F26
Log/Scan-Out 6 wards
QY410-F23
Log/Scan-Out 8 wards
To Part 2of 2
FIGURE 15. ROS KERNELS FLOWCHART: DIAGNOSE/FLT/LOG TRIGGER ENTRIES (PARl 1 OF 2)
Maintenance Features (3/71) 29