z/OSVersion 2 Release 3

MVS Programming: Assembler ServicesReference, Volume 2 (IAR-XCT)

IBM

SA23-1370-30

Note

Before using this information and the product it supports, read the information in “Notices” on page1167.

This edition applies to Version 2 Release 3 of z/OS (5650-ZOS) and to all subsequent releases and modifications untilotherwise indicated in new editions.

Last updated: 2019-02-16© Copyright International Business Machines Corporation 1988, 2017.US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract withIBM Corp.

Contents

List of Figures..................................................................................................xxxixList of Tables....................................................................................................... xliAbout this information....................................................................................... xliii

Who should use this information............................................................................................................. xliiiHow to use this information..................................................................................................................... xliiiz/OS information.......................................................................................................................................xliii

How to send your comments to IBM.................................................................... xlivIf you have a technical problem............................................................................................................... xliv

Summary of changes...........................................................................................xlvSummary of changes for z/OS Version 2 Release 3..................................................................................xlvSummary of changes for z/OS Version 2 Release 2 (V2R2), as updated December, 2015....................xlviSummary of changes for z/OS Version 2 Release 2.................................................................................xlviz/OS Version 2 Release 1 summary of changes......................................................................................xlvii

Chapter 1. Using the services................................................................................. 1Compatibility of MVS macros.......................................................................................................................1Addressing mode (AMODE)......................................................................................................................... 2Address space control (ASC) mode............................................................................................................. 3

ALET qualification...................................................................................................................................3User parameters..................................................................................................................................... 4

Telling the system about the execution environment ................................................................................ 5Specifying a macro version number............................................................................................................ 6

How to request a macro version using PLISTVER................................................................................. 6Register use..................................................................................................................................................7Handling return codes and reason codes....................................................................................................8

Handling program errors........................................................................................................................ 8Handling environmental and system errors...........................................................................................9

Using X-macros............................................................................................................................................ 9Macro forms............................................................................................................................................... 10

Conventional list form macros............................................................................................................. 10Alternative list form macros.................................................................................................................11

Coding the macros..................................................................................................................................... 11Continuation lines.................................................................................................................................13

Coding the callable services...................................................................................................................... 14Including equate (EQU) statements.................................................................................................... 14Link-editing linkage-assist routines.....................................................................................................15

Service summary....................................................................................................................................... 15

Chapter 2. IARCP64 — 64-bit cell pool services.....................................................23Description................................................................................................................................................. 23

Environment......................................................................................................................................... 23Programming requirements................................................................................................................. 24Restrictions...........................................................................................................................................24Input register information....................................................................................................................24Output register information................................................................................................................. 24Performance implications.................................................................................................................... 25Syntax................................................................................................................................................... 25Parameters........................................................................................................................................... 28ABEND codes........................................................................................................................................34Return and reason codes..................................................................................................................... 34

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Examples.............................................................................................................................................. 35

Chapter 3. IARR2V — Convert a central storage address to a virtual storageaddress........................................................................................................... 37Description................................................................................................................................................. 37

Environment......................................................................................................................................... 37Programming requirements................................................................................................................. 37Restrictions...........................................................................................................................................37Input register information....................................................................................................................37Output register information................................................................................................................. 37Performance implications.................................................................................................................... 38Syntax................................................................................................................................................... 38Parameters........................................................................................................................................... 39ABEND codes........................................................................................................................................40Return and reason codes..................................................................................................................... 40Example 1.............................................................................................................................................41Example 2.............................................................................................................................................41Example 3.............................................................................................................................................41Example 4.............................................................................................................................................42

Chapter 4. IARST64 — 64-bit storage services...................................................... 43Description................................................................................................................................................. 43

Environment......................................................................................................................................... 43Programming requirements................................................................................................................. 44Restrictions...........................................................................................................................................44Input register information....................................................................................................................44Output register information................................................................................................................. 44Performance implications.................................................................................................................... 45Syntax................................................................................................................................................... 45Parameters........................................................................................................................................... 47ABEND codes........................................................................................................................................51Return and reason codes..................................................................................................................... 55

Chapter 5. IARVSERV — Request to share virtual storage...................................... 57Description................................................................................................................................................. 57

Environment......................................................................................................................................... 57Programming requirements................................................................................................................. 57Restrictions...........................................................................................................................................58Input register information....................................................................................................................58Output register information................................................................................................................. 58Performance implications.................................................................................................................... 58Syntax................................................................................................................................................... 59Parameters........................................................................................................................................... 60ABEND codes........................................................................................................................................62Return and reason codes..................................................................................................................... 62Example 1.............................................................................................................................................64Example 2.............................................................................................................................................65Example 3.............................................................................................................................................65Example 4.............................................................................................................................................65Example 5.............................................................................................................................................65Example 6.............................................................................................................................................65

IARVSERV—List form..................................................................................................................................66IARVSERV - Execute form..........................................................................................................................67

Chapter 6. IARV64 — 64–bit virtual storage allocation.......................................... 71Description................................................................................................................................................. 71

Abend and abend reason codes...........................................................................................................72

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Return and reason codes..................................................................................................................... 72Example................................................................................................................................................ 73

REQUEST=GETSTOR option of IARV64.....................................................................................................73Environment......................................................................................................................................... 73Programming requirements................................................................................................................. 74Restrictions...........................................................................................................................................74Input register information....................................................................................................................74Output register information................................................................................................................. 74Performance implications.................................................................................................................... 74Syntax................................................................................................................................................... 74Parameters........................................................................................................................................... 76

REQUEST=PAGEOUT option of IARV64.................................................................................................... 81Environment......................................................................................................................................... 81Programming requirements................................................................................................................. 82Restrictions...........................................................................................................................................82Input register information....................................................................................................................82Output register information................................................................................................................. 82Performance implications.................................................................................................................... 83Syntax................................................................................................................................................... 83Parameters........................................................................................................................................... 84

REQUEST=PAGEIN option of IARV64....................................................................................................... 86Environment......................................................................................................................................... 86Programming requirements................................................................................................................. 86Restrictions...........................................................................................................................................86Input register information....................................................................................................................86Output register information................................................................................................................. 86Performance implications.................................................................................................................... 87Syntax................................................................................................................................................... 87Parameters........................................................................................................................................... 88

REQUEST=DISCARDDATA option of IARV64............................................................................................ 90Environment......................................................................................................................................... 90Programming requirements................................................................................................................. 90Restrictions...........................................................................................................................................90Input register information....................................................................................................................90Output register information................................................................................................................. 90Performance implications.................................................................................................................... 91Syntax................................................................................................................................................... 91Parameters........................................................................................................................................... 92

REQUEST=CHANGEGUARD option of IARV64..........................................................................................95Environment......................................................................................................................................... 95Programming requirements................................................................................................................. 95Restrictions...........................................................................................................................................95Input register information....................................................................................................................95Output register information................................................................................................................. 95Performance implications.................................................................................................................... 96Syntax................................................................................................................................................... 96Parameters........................................................................................................................................... 97

REQUEST=DETACH option of IARV64.....................................................................................................100Environment....................................................................................................................................... 100Programming requirements...............................................................................................................101Restrictions........................................................................................................................................ 101Input register information..................................................................................................................101Output register information............................................................................................................... 101Performance implications..................................................................................................................101Syntax................................................................................................................................................. 102Parameters......................................................................................................................................... 103

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Chapter 7. IDENTIFY — Add an entry name.........................................................107Description...............................................................................................................................................107

Syntax................................................................................................................................................. 107Parameters......................................................................................................................................... 108Return codes...................................................................................................................................... 108Example..............................................................................................................................................109

Chapter 8. IEAARR — Establish an associated recovery routine (ARR)..................111Description...............................................................................................................................................111

Environment....................................................................................................................................... 111Programming requirements...............................................................................................................111Restrictions........................................................................................................................................ 111Input register information..................................................................................................................111Output register information............................................................................................................... 111Performance implications..................................................................................................................112Syntax................................................................................................................................................. 112Parameters......................................................................................................................................... 113ABEND codes..................................................................................................................................... 116Return codes...................................................................................................................................... 116Example..............................................................................................................................................116

Chapter 9. IEABRC — Relative branch macro.......................................................117Description...............................................................................................................................................117

Environment....................................................................................................................................... 117Programming requirements...............................................................................................................117Restrictions........................................................................................................................................ 117Register information...........................................................................................................................117Performance implications..................................................................................................................117Syntax................................................................................................................................................. 117Parameters......................................................................................................................................... 118Example..............................................................................................................................................118

Chapter 10. IEABRCX — Relative branch macro extension................................... 119Description...............................................................................................................................................119

Environment....................................................................................................................................... 119Programming requirements...............................................................................................................119Restrictions........................................................................................................................................ 119Register information...........................................................................................................................119Performance implications..................................................................................................................119Syntax................................................................................................................................................. 120Parameters......................................................................................................................................... 120Example..............................................................................................................................................120

Chapter 11. IEAFP — Floating point services.......................................................123Description...............................................................................................................................................123

Environment....................................................................................................................................... 123Programming requirements...............................................................................................................123Restrictions........................................................................................................................................ 123Input register information..................................................................................................................123Output register information............................................................................................................... 123Performance implications..................................................................................................................124Syntax................................................................................................................................................. 124Parameters......................................................................................................................................... 125ABEND codes..................................................................................................................................... 125Return and reason codes................................................................................................................... 125Example..............................................................................................................................................126

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Chapter 12. IEAGSF — Guarded-Storage Facility services....................................127

Chapter 13. IEAINTKN — Build incident token.................................................... 137Description...............................................................................................................................................137

Environment....................................................................................................................................... 137Programming requirements...............................................................................................................137Restrictions........................................................................................................................................ 137Input register information..................................................................................................................137Output register information............................................................................................................... 137Performance implications..................................................................................................................138Syntax................................................................................................................................................. 138Parameters......................................................................................................................................... 138ABEND codes..................................................................................................................................... 138Return and reason codes................................................................................................................... 138Example..............................................................................................................................................139

Chapter 14. IEALSQRY — Linkage stack query.....................................................141Description...............................................................................................................................................141

Environment....................................................................................................................................... 141Programming requirements...............................................................................................................141Restrictions........................................................................................................................................ 142Input register information..................................................................................................................142Output register information............................................................................................................... 142Performance implications..................................................................................................................142Syntax................................................................................................................................................. 142ABEND codes..................................................................................................................................... 143Return codes...................................................................................................................................... 143Example..............................................................................................................................................144

Chapter 15. IEAMETR — Query external time reference status.............................145Description...............................................................................................................................................145

Environment....................................................................................................................................... 145Programming requirements...............................................................................................................145Restrictions........................................................................................................................................ 145Input register information..................................................................................................................145Output register information............................................................................................................... 145Performance implications..................................................................................................................146Syntax................................................................................................................................................. 146Parameters......................................................................................................................................... 146Return codes...................................................................................................................................... 147

Chapter 16. IEANTCR — Create a name/token pair.............................................. 149Description...............................................................................................................................................149

Environment....................................................................................................................................... 149Programming requirements...............................................................................................................149Restrictions........................................................................................................................................ 150Input register information..................................................................................................................150Output register information............................................................................................................... 150Performance implications..................................................................................................................150Syntax................................................................................................................................................. 150Parameters......................................................................................................................................... 151ABEND codes..................................................................................................................................... 151Return and reason codes................................................................................................................... 152Example..............................................................................................................................................152

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Chapter 17. IEANTDL — Delete a name/token pair.............................................. 155Description...............................................................................................................................................155

Environment....................................................................................................................................... 155Programming requirements...............................................................................................................155Restrictions........................................................................................................................................ 156Input register information..................................................................................................................156Output register information............................................................................................................... 156Performance implications..................................................................................................................156Syntax................................................................................................................................................. 156Parameters......................................................................................................................................... 157ABEND codes..................................................................................................................................... 157Return and reason codes................................................................................................................... 157Example..............................................................................................................................................158

Chapter 18. IEANTRT — Retrieve the token from a name/token pair.................... 159Description...............................................................................................................................................159

Environment....................................................................................................................................... 159Programming requirements...............................................................................................................159Restrictions........................................................................................................................................ 160Input register information..................................................................................................................160Output register information............................................................................................................... 160Performance implications..................................................................................................................160Syntax................................................................................................................................................. 160Parameters......................................................................................................................................... 161ABEND codes..................................................................................................................................... 161Return and reason codes................................................................................................................... 161Example 1...........................................................................................................................................162Example 2...........................................................................................................................................162

Chapter 19. IEAN4CR — Create a name/token pair..............................................165Description...............................................................................................................................................165

Environment....................................................................................................................................... 165Programming requirements...............................................................................................................165Restrictions........................................................................................................................................ 166Input register information..................................................................................................................166Output register information............................................................................................................... 166Performance implications..................................................................................................................166Syntax................................................................................................................................................. 166Parameters......................................................................................................................................... 167ABEND codes..................................................................................................................................... 167Return and reason codes................................................................................................................... 168

Chapter 20. IEAN4DL — Delete a name/token pair.............................................. 169Description...............................................................................................................................................169

Environment....................................................................................................................................... 169Programming requirements...............................................................................................................169Restrictions........................................................................................................................................ 170Input register information..................................................................................................................170Output register information............................................................................................................... 170Performance implications..................................................................................................................170Syntax................................................................................................................................................. 170Parameters......................................................................................................................................... 171ABEND codes..................................................................................................................................... 171Return and reason codes................................................................................................................... 171

Chapter 21. IEAN4RT — Retrieve the token from a name/token pair.................... 173

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Description...............................................................................................................................................173Environment....................................................................................................................................... 173Programming requirements...............................................................................................................173Restrictions........................................................................................................................................ 174Input register information..................................................................................................................174Output register information............................................................................................................... 174Performance implications..................................................................................................................174Syntax................................................................................................................................................. 174Parameters......................................................................................................................................... 175ABEND codes..................................................................................................................................... 175Return and reason codes................................................................................................................... 175

Chapter 22. IEATDUMP — Transaction dump request.......................................... 177Description...............................................................................................................................................177

Environment....................................................................................................................................... 177Programming requirements...............................................................................................................178Restrictions........................................................................................................................................ 178Input register information..................................................................................................................178Output register information............................................................................................................... 178Performance implications..................................................................................................................178Syntax................................................................................................................................................. 178Parameters......................................................................................................................................... 181ABEND codes..................................................................................................................................... 187Return and reason codes................................................................................................................... 187Examples............................................................................................................................................ 193

Chapter 23. IEATXDC — Transactional execution diagnostic controls................... 195Description...............................................................................................................................................195

Environment....................................................................................................................................... 195Programming requirements...............................................................................................................195Restrictions........................................................................................................................................ 195Input register information..................................................................................................................195Output register information............................................................................................................... 195Performance implications..................................................................................................................196Syntax................................................................................................................................................. 196Parameters......................................................................................................................................... 197ABEND codes..................................................................................................................................... 197Return codes...................................................................................................................................... 197Examples............................................................................................................................................ 198

Chapter 24. IEAVAPE — Allocate_Pause_Element............................................... 199Description...............................................................................................................................................199

Environment....................................................................................................................................... 199Programming requirements...............................................................................................................199Restrictions........................................................................................................................................ 199Input register information..................................................................................................................199Output register information............................................................................................................... 200Performance implications..................................................................................................................200Syntax................................................................................................................................................. 200Parameters......................................................................................................................................... 200ABEND codes..................................................................................................................................... 201Return codes...................................................................................................................................... 201

Chapter 25. IEAVAPE2 — Allocate_Pause_Element............................................. 203Description...............................................................................................................................................203

Environment....................................................................................................................................... 203Programming requirements...............................................................................................................203

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Restrictions........................................................................................................................................ 203Input register information..................................................................................................................204Output register information............................................................................................................... 204Performance implications..................................................................................................................204Syntax................................................................................................................................................. 204Parameters......................................................................................................................................... 205ABEND codes..................................................................................................................................... 208Return codes...................................................................................................................................... 208

Chapter 26. IEAVDPE — Deallocate_Pause_Element............................................211Description...............................................................................................................................................211

Environment....................................................................................................................................... 211Programming requirements...............................................................................................................211Restrictions........................................................................................................................................ 211Input register information..................................................................................................................211Output register information............................................................................................................... 212Performance implications..................................................................................................................212Syntax................................................................................................................................................. 212Parameters......................................................................................................................................... 212ABEND codes..................................................................................................................................... 213Return codes...................................................................................................................................... 213

Chapter 27. IEAVDPE2 — Deallocate_Pause_Element..........................................215Description...............................................................................................................................................215

Environment....................................................................................................................................... 215Programming requirements...............................................................................................................215Restrictions........................................................................................................................................ 215Input register information..................................................................................................................215Output register information............................................................................................................... 216Performance implications..................................................................................................................216Syntax................................................................................................................................................. 216Parameters......................................................................................................................................... 216ABEND codes..................................................................................................................................... 217Return codes...................................................................................................................................... 217

Chapter 28. IEAVPME2 — pause multiple elements service................................. 219Description...............................................................................................................................................219

Environment....................................................................................................................................... 219Programming requirements...............................................................................................................219Restrictions........................................................................................................................................ 219Input register information..................................................................................................................220Output register information............................................................................................................... 220Performance implications..................................................................................................................220Syntax................................................................................................................................................. 221Parameters......................................................................................................................................... 221ABEND codes..................................................................................................................................... 223Return codes...................................................................................................................................... 223

Chapter 29. IEAVPSE — Pause service................................................................ 227Description...............................................................................................................................................227

Environment....................................................................................................................................... 227Programming requirements...............................................................................................................227Restrictions........................................................................................................................................ 227Input register information..................................................................................................................227Output register information............................................................................................................... 228Performance implications..................................................................................................................228Syntax................................................................................................................................................. 228

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Parameters......................................................................................................................................... 228ABEND codes..................................................................................................................................... 230Return codes...................................................................................................................................... 230

Chapter 30. IEAVPSE2 — Pause service.............................................................. 233Description...............................................................................................................................................233

Environment....................................................................................................................................... 233Programming requirements...............................................................................................................233Restrictions........................................................................................................................................ 233Input register information..................................................................................................................234Output register information............................................................................................................... 234Performance implications..................................................................................................................234Syntax................................................................................................................................................. 234Parameters......................................................................................................................................... 235ABEND codes..................................................................................................................................... 236Return codes...................................................................................................................................... 236

Chapter 31. IEAVRLS — Release......................................................................... 239Description...............................................................................................................................................239

Environment....................................................................................................................................... 239Programming requirements...............................................................................................................239Restrictions........................................................................................................................................ 239Input register information..................................................................................................................239Output register information............................................................................................................... 240Performance implications..................................................................................................................240Syntax................................................................................................................................................. 240Parameters......................................................................................................................................... 240ABEND codes..................................................................................................................................... 241Return codes...................................................................................................................................... 241

Chapter 32. IEAVRLS2 — Release....................................................................... 243Description...............................................................................................................................................243

Environment....................................................................................................................................... 243Programming requirements...............................................................................................................243Restrictions........................................................................................................................................ 243Input register information..................................................................................................................243Output register information............................................................................................................... 244Performance implications..................................................................................................................244Syntax................................................................................................................................................. 244Parameters......................................................................................................................................... 244ABEND codes..................................................................................................................................... 245Return codes...................................................................................................................................... 245

Chapter 33. IEAVRPI — Retrieve_Pause_Element_Information service................ 249Description...............................................................................................................................................249

Environment....................................................................................................................................... 249Programming requirements...............................................................................................................249Restrictions........................................................................................................................................ 249Input register information..................................................................................................................250Output register information............................................................................................................... 250Performance implications..................................................................................................................250Syntax................................................................................................................................................. 250Parameters......................................................................................................................................... 250ABEND codes..................................................................................................................................... 252Return codes...................................................................................................................................... 253

Chapter 34. IEAVRPI2 — Retrieve_Pause_Element_Information service.............. 255

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Description...............................................................................................................................................255Environment....................................................................................................................................... 255Programming requirements...............................................................................................................255Restrictions........................................................................................................................................ 256Input register information..................................................................................................................256Output register information............................................................................................................... 256Performance implications..................................................................................................................256Syntax................................................................................................................................................. 257Parameters......................................................................................................................................... 257ABEND codes..................................................................................................................................... 259Return codes...................................................................................................................................... 259

Chapter 35. IEAVTPE — Test_Pause_Element service..........................................261Description...............................................................................................................................................261

Environment....................................................................................................................................... 261Programming requirements...............................................................................................................261Restrictions........................................................................................................................................ 261Input register information..................................................................................................................261Output register information............................................................................................................... 261Performance implications..................................................................................................................262Syntax................................................................................................................................................. 262Parameters......................................................................................................................................... 262ABEND codes..................................................................................................................................... 263Return codes...................................................................................................................................... 264

Chapter 36. IEAVXFR — Transfer service.............................................................265Description...............................................................................................................................................265

Environment....................................................................................................................................... 265Programming requirements...............................................................................................................265Restrictions........................................................................................................................................ 265Input register information..................................................................................................................265Output register information............................................................................................................... 266Performance implications..................................................................................................................266Syntax................................................................................................................................................. 266Parameters......................................................................................................................................... 266ABEND codes..................................................................................................................................... 268Return codes...................................................................................................................................... 268

Chapter 37. IEAVXFR2 — Transfer service...........................................................271Description...............................................................................................................................................271

Environment....................................................................................................................................... 271Programming requirements...............................................................................................................271Restrictions........................................................................................................................................ 271Input register information..................................................................................................................271Output register information............................................................................................................... 272Performance implications..................................................................................................................272Syntax................................................................................................................................................. 272Parameters......................................................................................................................................... 272ABEND codes..................................................................................................................................... 274Return codes...................................................................................................................................... 274

Chapter 38. IEA4APE — Allocate_Pause_Element............................................... 277Description...............................................................................................................................................277

Environment....................................................................................................................................... 277Programming requirements...............................................................................................................277Restrictions........................................................................................................................................ 277Input register information..................................................................................................................278

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Output register information............................................................................................................... 278Performance implications..................................................................................................................278Syntax................................................................................................................................................. 278Parameters......................................................................................................................................... 279ABEND codes..................................................................................................................................... 280Return codes...................................................................................................................................... 280

Chapter 39. IEA4APE2 — Allocate_Pause_Element............................................. 281Description...............................................................................................................................................281

Environment....................................................................................................................................... 281Programming requirements...............................................................................................................281Restrictions........................................................................................................................................ 281Input register information..................................................................................................................282Output register information............................................................................................................... 282Performance implications..................................................................................................................282Syntax................................................................................................................................................. 282Parameters......................................................................................................................................... 283ABEND codes..................................................................................................................................... 285Return codes...................................................................................................................................... 285

Chapter 40. IEA4DPE - Deallocate_Pause_Element.............................................287Description...............................................................................................................................................287

Environment....................................................................................................................................... 287Programming requirements...............................................................................................................287Restrictions........................................................................................................................................ 287Input register information..................................................................................................................287Output register information............................................................................................................... 288Performance implications..................................................................................................................288Syntax................................................................................................................................................. 288Parameters......................................................................................................................................... 288ABEND codes..................................................................................................................................... 289Return codes...................................................................................................................................... 289

Chapter 41. IEA4DPE2 — Deallocate_Pause_Element..........................................291Description...............................................................................................................................................291

Environment....................................................................................................................................... 291Programming requirements...............................................................................................................291Restrictions........................................................................................................................................ 291Input register information..................................................................................................................291Output register information............................................................................................................... 292Performance implications..................................................................................................................292Syntax................................................................................................................................................. 292Parameters......................................................................................................................................... 292ABEND codes..................................................................................................................................... 293Return codes...................................................................................................................................... 293

Chapter 42. IEA4PME2 — 64-bit pause multiple elements service....................... 295Description...............................................................................................................................................295

Environment....................................................................................................................................... 295Programming requirements...............................................................................................................295Restrictions........................................................................................................................................ 295Input register information..................................................................................................................296Output register information............................................................................................................... 296Performance implications..................................................................................................................296Syntax................................................................................................................................................. 297Parameters......................................................................................................................................... 297ABEND codes..................................................................................................................................... 299

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Return codes...................................................................................................................................... 299

Chapter 43. IEA4PSE — Pause service................................................................ 303Description...............................................................................................................................................303

Environment....................................................................................................................................... 303Programming requirements...............................................................................................................303Restrictions........................................................................................................................................ 303Input register information..................................................................................................................303Output register information............................................................................................................... 304Performance implications..................................................................................................................304Syntax................................................................................................................................................. 304Parameters......................................................................................................................................... 304ABEND codes..................................................................................................................................... 306Return codes...................................................................................................................................... 306

Chapter 44. IEA4PSE2 — Pause service.............................................................. 309Description...............................................................................................................................................309

Environment....................................................................................................................................... 309Programming requirements...............................................................................................................309Restrictions........................................................................................................................................ 309Input register information..................................................................................................................310Output register information............................................................................................................... 310Performance implications..................................................................................................................310Syntax................................................................................................................................................. 310Parameters......................................................................................................................................... 311ABEND codes..................................................................................................................................... 312Return codes...................................................................................................................................... 312

Chapter 45. IEA4RLS — Release......................................................................... 315Description...............................................................................................................................................315

Environment....................................................................................................................................... 315Programming requirements...............................................................................................................315Restrictions........................................................................................................................................ 315Input register information..................................................................................................................315Output register information............................................................................................................... 316Performance implications..................................................................................................................316Syntax................................................................................................................................................. 316Parameters......................................................................................................................................... 316ABEND codes..................................................................................................................................... 317Return codes...................................................................................................................................... 317

Chapter 46. IEA4RLS2 — Release....................................................................... 319Description...............................................................................................................................................319

Environment................................