XMEMOPT parameter - Revision history

ELowell: /* Summary */

2017-12-13T22:15:20Z

Summary

← Older revision		Revision as of 22:15, 13 December 2017
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	<dl>		<dl>
	<dt>Default value		<dt>Default value
	<dd>X'02' if [[Cross-memory_facilities_CRAM_and_M204XSVC#M204XSVC\|M204XSVC]] is linked into the nucleus ( as of V7.5, M204XSVC is linked into the nucleus by default ).		<dd>X'02' if [[Cross-memory_facilities_CRAM_and_M204XSVC#M204XSVC\|M204XSVC]] is linked into the nucleus (as of V7.5, M204XSVC is linked into the nucleus by default)
	<DD>X'00' if M204XSVC is not linked into the nucleus		<DD>X'00' if M204XSVC is not linked into the nucleus
	<dt>Parameter type		<dt>Parameter type

ELowell: /* Description */

2017-12-13T22:14:18Z

Description

← Older revision		Revision as of 22:14, 13 December 2017
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	<tr><th align="right"><var>X'80'</var></th>		<tr><th align="right"><var>X'80'</var></th>
	<td>Activates [[Defining the user environment (CCAIN)#CRAM ~~options for~~ z~~.2FOS~~\|CRAM-XDM]].		<td>Activates [[Defining the user environment (CCAIN)#Using CRAM on a z/OS operating system\|CRAM-XDM]].
	<p>If the Online and CRAM-XDM load modules are not APF authorized, the X'80' bit is turned off. </p></td></tr>		<p>If the Online and CRAM-XDM load modules are not APF authorized, the X'80' bit is turned off. </p></td></tr>

DCameron: /* Description */

2017-12-12T15:09:50Z

Description

← Older revision		Revision as of 15:09, 12 December 2017
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	<tr><th><var>X'02'</var></th>		<tr><th><var>X'02'</var></th>
	<td>Invokes IOS Branch Entry (recommended for z/OS) to handle all database and CCATEMP I/O.		<td>Invokes IOS Branch Entry (recommended for z/OS) to handle all database and [[Using_the_system_scratch_file_(CCATEMP)\|CCATEMP]] I/O.
	<ul>		<ul>
	<li>If the Online load module is not APF authorized, the X'02' bit is turned off. </li>		<li>If the Online load module is not APF authorized, the X'02' bit is turned off. </li>

DCameron: /* Summary */

2017-12-12T15:07:54Z

Summary

← Older revision		Revision as of 15:07, 12 December 2017
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	<dl>		<dl>
	<dt>Default value		<dt>Default value
	<dd>X'02' if M204XSVC is linked into the nucleus ( as of V7.5, M204XSVC is linked into the nucleus by default ).		<dd>X'02' if [[Cross-memory_facilities_CRAM_and_M204XSVC#M204XSVC\|M204XSVC]] is linked into the nucleus ( as of V7.5, M204XSVC is linked into the nucleus by default ).
	<DD>X'00' if M204XSVC is not linked into the nucleus		<DD>X'00' if M204XSVC is not linked into the nucleus
	<dt>Parameter type		<dt>Parameter type

DCameron: /* Summary */

2017-12-12T15:00:30Z

Summary

← Older revision		Revision as of 15:00, 12 December 2017
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	<dd>All		<dd>All
	<dt>Introduced		<dt>Introduced
	<dd><var class="product">Model 204 V6.1</var> or earlier		<dd><var class="product">Model 204 V2.1</var> or earlier
	</dl>		</dl>

DCameron: /* Summary */

2017-12-12T14:50:02Z

Summary

← Older revision		Revision as of 14:50, 12 December 2017
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	<dl>		<dl>
	<dt>Default value		<dt>Default value
	<dd>X'02' if M204XSVC is linked into the nucleus ( as of V7.5, M204XSVC is linked into the nucleus by default.		<dd>X'02' if M204XSVC is linked into the nucleus ( as of V7.5, M204XSVC is linked into the nucleus by default ).
	<DD>X'00' if M204XSVC is not linked into the nucleus		<DD>X'00' if M204XSVC is not linked into the nucleus
	<dt>Parameter type		<dt>Parameter type

DCameron: /* Summary */

2017-12-12T14:49:43Z

Summary

← Older revision		Revision as of 14:49, 12 December 2017
Line 3:		Line 3:
	<dl>		<dl>
	<dt>Default value		<dt>Default value
	<dd>X'02' if M204XSVC is linked into the nucleus		<dd>X'02' if M204XSVC is linked into the nucleus ( as of V7.5, M204XSVC is linked into the nucleus by default.
	<DD>X'00' if M204XSVC is not linked into the nucleus		<DD>X'00' if M204XSVC is not linked into the nucleus
	<dt>Parameter type		<dt>Parameter type

JAL: /* Description */ XMEMSVC not required as of 7.5

2017-02-17T01:42:22Z

Description: XMEMSVC not required as of 7.5

← Older revision		Revision as of 01:42, 17 February 2017
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	This parameter applies only to z/OS.</p>		This parameter applies only to z/OS.</p>
	<p>		<p>
	~~The~~ <var>[[XMEMSVC parameter\|XMEMSVC]]</var> parameter is ~~used with any of~~ the ~~nonzero settings~~. </p>		Prior to <var class="product">Model 204</var> 7.5, nonzero settings of <var>XMEMOPT</var> enabled features whose execution was accomplished with a system supervisor call (SVC), and the SVC number was specified as the <var>[[XMEMSVC parameter\|XMEMSVC]]</var> parameter value in the Model 204 CCAIN.
	<p>Valid settings of <var>XMEMOPT</var> are: </p>		Under the default installation of Model 204 as of version 7.5, the <code>M204XSVC</code> module is not installed as an SVC, and specifying an <var>XMEMSVC</var> value is not necessarily required for the <var>XMEMOPT</var> features. </p>
			<p>
			Valid settings of <var>XMEMOPT</var> are: </p>
	<table>		<table>
	<tr class="head"><th>Setting</th><th>Meaning</th></tr>		<tr class="head"><th>Setting</th><th>Meaning</th></tr>
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	<tr><th align="right"><var>X'20'</var></th>		<tr><th align="right"><var>X'20'</var></th>
	<td>Use SUSPEND/RESUME instead of WAIT/POST for communication between <var class="product">Model 204</var> real subtasks. This option may reduce operating system overhead slightly.		<td>Use SUSPEND/RESUME instead of WAIT/POST for communication between <var class="product">Model 204</var> real subtasks. This option may reduce operating system overhead slightly.
	<p>If the Online load module is not APF authorized, the X'20' bit is turned off. </p></td></tr>		<p>
			If the Online load module is not APF authorized, the X'20' bit is turned off. </p></td></tr>

	<tr><th><var>X'04'</var></th>		<tr><th><var>X'04'</var></th>

JAL: /* Description */ add link to UL/DB2

2017-02-07T21:01:28Z

Description: add link to UL/DB2

← Older revision		Revision as of 21:01, 7 February 2017
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	<tr><th><var>X'04'</var></th>		<tr><th><var>X'04'</var></th>
	<td>Forces initialization of cross-memory environment (M204XSVC). </td></tr>		<td>Forces initialization of cross-memory environment (M204XSVC).
			<p>This bit might be useful for the [[Model 204 environment for UL/DB2#Taking advantage of operating system Cross-Memory Services\|UL/DB2 feature]].</p></td></tr>

	<tr><th><var>X'03'</var></th>		<tr><th><var>X'03'</var></th>

JAL: add note re APF authorization

2017-02-06T22:54:52Z

add note re APF authorization

← Older revision		Revision as of 22:54, 6 February 2017
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	<tr><th align="right"><var>X'20'</var></th>		<tr><th align="right"><var>X'20'</var></th>
	<td>Use SUSPEND/RESUME instead of WAIT/POST for communication between <var class="product">Model 204</var> real subtasks. This option may reduce operating system overhead slightly.</td></tr>		<td>Use SUSPEND/RESUME instead of WAIT/POST for communication between <var class="product">Model 204</var> real subtasks. This option may reduce operating system overhead slightly.
			<p>If the Online load module is not APF authorized, the X'20' bit is turned off. </p></td></tr>

	<tr><th><var>X'04'</var></th>		<tr><th><var>X'04'</var></th>