IBM System/360 2050 User Manual

ROS AddreH
Equivalent Hex
Kernel Name CAS Page (From LCW 19- 30)
Address in LCW 16-31
Function
Fetch LCW
QY110
F4E 1 E9C Read in next LCW from main storage.
Execute LCW
QY110
FBB 1 F16 Set controls and ROAR from LCW.
I- Fetch Entry
QY110 FB9 1 F72 Go back to normal I-fetch.
FLT Load Coll
QY140
FBC
1 F78
Initiates FLT load and puts CPU in
sequence counter mode.
Scan-In:
----
---- --·--
Sets registers, stats, etc, from main
Scan entry
QY310
F48 1E90 storage (up ta 11 words).
Diagnose entry QY310 F31
1E62
Scan-Out:
----
---- ----
Puts contents of register5, stats, etc.
Hardware entry
QY410
2CO
(0580) into main storage (up to 34 words).
Full Scan Entry
QY410
F26
1E4C
Partial Scan Entry
QY410
F23
1 E46
Com, Mpx, and Sel
QY410 F09 1E12
Ch Entry
Sel Ch Entry
QY420 Fl B 1E36
FLT Compare and Branch
QY510 F45
1 EBA Compares actual response with expected
response of FLT zero and one cycle tests,
sets pass/fail triggers, and branches on
results.
Reset Error and FLT
QY140 FB7 1 F6E Resets both CPU error and FLT op regs an~
Op Re,gisters
then goes to I-fetch.
Set Ignore Error-1/0 Tgr
QY150
F3A
1 E74 Prevents error recognition and 1/0
break-in.
Reset Ignore E'ror-
QY150
FD3-7 1FA6,8,A,C,E
Allows error recognition and 1/0
1/0 Tgr
break-in.
Log Local Storage: ----
·--.--
----
Puts contents of local storage into
Sector 0 Entry
QY450 F51
1EA2 main storage.
Sector 1 Entry
QY450 Fl 1
1 E22
Sec tor 2 Entry
QY450 FOO
lFAO
Sector 3 Entry
QY450 F90
1 F20
Beat Local Storage
QY130
224
0448
Continuous scan-in and check of a
specified local storage address.
Ripple Local Storage
QY130 FBS
1F70
Scan-in ond check of all local storage addresses.
Fetch/ Alter Bump:
-- --
-----
·----
Permits any location in bump storage to be
Word 0
QY140 FB5
1 F6A
fetched or altered (group specified by
Word 1
QY140 F35
1 E6A
L reg).
Word 2
QY140 FB4
1 F68
Word 3
QY140 F34
1E68
Reset Mpx UCW
QY440 F07
lEOE
Resets mpx unit control word to stop
1/0 device (while logging mpx channel).
Invert SAR Bit 16 T gr:
---- ----
----- ----
Turn On
QY140 F86
1 F6C
Inverts SAR 16, causing SK (word)
relocation of main storage, then
goes to I-fetch.
Turn Off
QY140 F36
1 E6C
Restores nonnol storage addressing,
then goes to I-fetch.
Lorge Capacity Storage
(LCS) Controls
----
.,.. ___
----
----
QY140 FB3
1F66
Turn on LCS parity control tgr.
QY140 F33
1E66
Turn on LCS byte parity mode tgr.
QY140 FB2
1F64
Reseh both LCS parity control and LCS
byte parity mode triggers.
FIGURE 14. ROS KERNELS (MAINTENANCE ROUTINES)
28 (3/71) Model 50 FEMM

IBM System/360 2050 Specifications

General

Brand	IBM
Model	System/360 2050
Category	Computer Hardware
Language	English