Instruction Format
Register
Storage
Address Generation
Sequential Instruction-Address Generation
Operand-Address Generation
Branch-Address Generation
Instruction Execution and Sequencing
Loop
Subroutine Linkage
Interruptions
Types of Instruction Ending
Suppression
Termination
Interruptible Instructions
Execution of Interruptible Instructions ............... 5-9
Exceptions to Nullification and Suppression
Storage
OAT-Associated Access Exceptions
Modification of OAT-Table Entries
TRANSLATE
Interlocked Update for Nullification and
Suppression ...................................•...••. 5-12
Dual-Address-Space
DAS Functions
Using Two Address Spaces
Moving Information
Transferring
Handling Storage Keys and the
DAS Authorization Mechanisms
Mode Requirements
Secondary-Space
Subsystem-Linkage
ASN-Translation
Authorization Index
Linkage-Table Entries
Entry-Table Entries ..............•.................... 5-22
Linkage-Table lookup
Entry-Table Lookup
Recognition of Exceptions during
Sequence of Storage References
Conceptual Sequence
Divisible Instruction Execution ................•.•.... 5-25
Interlocl<s for
Instruction Fetching
OAT-Table Fetches
Storage-Key Accesses