NICL
Byte 0 of the Number In Class block (NICL) contains the numher of system class logical
units. The second byte contains the number of programmer class logical units for the
partition.
The NICLPT field in the BGCOM block points to the NICL tlock.
o A*1
Hexadecimal Field
Displacement Name
------------
0 BOSIS 1 BOPROG A*2
DC
DC
.J
AL 1 (14)
At 1 (242)
Field Description, Contents, Meaning A*1 Total number of system LUBs A*2 Total number of programmer LUEs 204 IBM VM/370 Data Areas and Control Block Logic

NUCON is the nucleus constant area of CMS. o
8 10 18 20 28 30 38 40 48 50 58 60 68 70 78 80 88 CAW TIMER I IPLPSW IPLCCW1 IPLCCW2 EXTOPSW SVCOPSW PGiiOPSi MCKOPSW IOOPSW CSW 1//////II/INUCRSV1////IIIII/ 1//I/I/////NUCRSV2/1/11//111 EXTNPSW SVCNPSW PGMNPSW MCKNPSW IONPSW CPULOG 90111////////NUCRSV4///////////1 MONCLASS PERCODE 1--- 981 PERADDR MCNCODE I AOII////////////////////////NUCRSV5//I/////////////I/11/11/ 11//////////////////////////////1//////1111///1/1//////// 1//1///////////////////////////1/1/////1/1//////11////III I I COl LOWSAVE I 1------------------------------------------------- 1601 FPRLOG 1--------·------------------------------------------ 1801 GPRLOG L- _________________________________________________ J NUCCN Section 2. CMS Lata Areas and Centrel Blocks 205