You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
INPUT/OUTPUT BLOCK<br />
Extension (Continued)<br />
----_ .. _----------_ .. ---------------------------------------------- ... -------------------------_ ...... _----------------_ .. _----_ .... -------.. ------------------------------------------_ .... _----------_ .. _-----------_ ....<br />
QISAM<br />
40 (28)<br />
BISAM<br />
40 (28)<br />
44 (2C)<br />
48 (30)<br />
W11EXTEN,W10EXTEN<br />
Appendage Codes<br />
41 (29)<br />
10BCCWAD<br />
Fixed Length Record: Address of First CCW<br />
Variable Length Records: Buffer Address<br />
10BINDCT<br />
45 (2D) 10BUNSQR 46 (2E) 10BAPP<br />
Queue Indicators Reason Queue Unscheduled Appendage Codes<br />
10BCOUNT 49 (31) 10BFCHAD<br />
Write Check Count Forward Chain Address<br />
52 (34) 10BBCHAD<br />
Backward Chain Address<br />
BDAM<br />
40 (28) 10BDBYTR 42 (2A) 10BDIOBS<br />
No. of Unused Track Bytes Size of lOB<br />
44 (2C) 10BDAVLI 45 (2D) 10BDPLAD<br />
Availability Indicator Address of Next lOB in Pool<br />
47 (2F)<br />
48 (30) 10BDTYPE 50 (32) 10BDSTAT<br />
Type of I/o and Options Status of Request<br />
52 (34) 10BDCPND<br />
Address of Channel Program End<br />
56 (38) 10BDBYTN 58 (3A)<br />
No. of Bytes Per Block Reserved<br />
60 (3C) 10BDQPTR<br />
Address of Next lOB<br />
_L.64 (40)<br />
L(4BJ<br />
t(SOJ<br />
T<br />
Reserved<br />
10BDNCRF<br />
Count Field for Next Block<br />
Figure 19. Input/Output Block (Part 3 of 3)<br />
212 OS <strong>System</strong> <strong>Control</strong> <strong>Blocks</strong> (Release 21.7)<br />
Channel Program<br />
10BASYN<br />
Asynchronous Code<br />
55 (37)<br />
-<br />
I<br />
1<br />
J
Change language