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HP OpenVMS Systems Documentation

HP OpenVMS Calling Standard Previous Contents Index O Obsolete descriptor class codes Operating system-specific data area Optimized procedure calls     and invocation chains OTS$CALL_PROC     Alpha version     I64 version OTS$JUMP_TO_BPV Output registers #1 Output registers #2 Output registers #3 Overlapping unwind Override callback mechanism Own data items #1 Own data items #2 Own data items #3 Own data items #4 Own data items #5 P Parameter passing #1 Parameter passing #2 Parameter slots #1 Parameter slots #2 Partitioning Passing mechanisms     descriptor         definition     immediate value         definition     language extensions     reference         definition PC     definition PDSCs (procedure descriptors)     for bound procedures     for null frame procedures #1     for null frame procedures #2     for register frame procedures     for stack frame procedures Predicate register usage Preserved registers #1 Preserved registers #2 Preserved registers #3 Preserved registers #4 Procedure calls     optimized         and invocation chains     stack #1     stack #2     tracing Procedure descriptors     See also FDSCs for I64 Procedure frames #1 Procedure frames #2 Procedure invocation #1 Procedure invocation #2     handle #1     handle #2 Procedure linkage Procedure signature     see Signature information Procedure types #1 Procedure types #2 Procedure values #1 Procedure values #2 Procedure values #3     bound #1     bound #2     definition #1     definition #2     examining Procedures     definition     language support     library     types     without frames Process     definition PSIGs ((procedure) signature information blocks)     field conversions R Read-only registers Receiving data     Alpha Record layout #1 Record layout #2     VAX compatible #1     VAX compatible #2 Reference     definition Reference argument item #1 Reference argument item #2 Register classes Register frame procedures #1 Register frame procedures #2     descriptors #1     descriptors #2 Register stack Registers #1 Registers #2 Registers #3     application usage     automatic     branch usage     floating-point usage #1     floating-point usage #2     for returns     general usage     global     input     integer usage     output     predicate usage     preserved     rotating floating-point     rotating predicate     scalar     scratch     special     stacked registers     static floating-point     static predicate     static registers     user mask     VAX usage     vector     volatile Request to unwind Reserve region #1 Reserve region #2 Reserved data type codes Reserved descriptor class codes Return values Returning data Returning from condition handlers Returning function value     fixed length to stack     to stack     varying string to stack Returns     address     condition value     function value Revert to caller's handling Rotating registers     floating-point     predicate RSA (register save area)     layout #1     layout #2     stack frames S Scalars     processor synchronization     register usage Scratch registers Sending data     argument order evaluation #1     argument order evaluation #2     mechanisms #1     mechanisms #2 Severity codes     handling     interpreting     meanings     symbols Short bss area Short data area Signal     definition Signal argument vectors Signaler's register Signaling conditions     with GENTRAP     with LIB$SIGNAL Signature information     default Simple procedure #1 Simple procedure #2 Special calls Special registers #1 Special registers #2 Stack frames     fixed size     format     procedure descriptors     procedures #1     procedures #2     register save area     variable size #1     variable size #2 Stack guard region     multithreads #1     multithreads #2 Stack limit checking     explicit #1     explicit #2     implicit #1     implicit #2     methods #1     methods #2     multithreads #1     multithreads #2 Stack overflow #1 Stack overflow #2 Stack overflow #3     handling #1     handling #2     multithreads #1     multithreads #2 Stack reserve region     checking #1     checking #2     multithreads #1     multithreads #2 Stack return     mechanism     values to top Stack temporary area #1 Stack temporary area #2 Stack usage #1 Stack usage #2     for Alpha systems     for VAX Stacked registers Standard calls     definition Standard-conforming procedures     definition Static data #1 Static data #2 Static data alignment #1 Static data alignment #2 Static registers     floating-point     predicate String data types String with bounds descriptors Synchronization     exception     memory SYS$CALL_HANDL+4 routine     using SYS$GOTO_UNWIND routine     unwinding SYS$GOTO_UNWIND_64 routine     unwinding SYS$UNWIND routine     unwinding #1     unwinding #2 Previous Next Contents Index