NonStop S-Series Server Description Manual (G06.27+)

TNS Execution Modes
HP NonStop S-Series Server Description Manual—520331-004
6-41
Overview of Procedure Call and Exit
Figure 6-23. Example of a Procedure Call and Exit
Code Segment
(UC.2)
401
Procedure A
•
•
•
PCAL 4
•
•
•
Procedure B
•
•
•
EXIT
PEP
C [4]
C [272]
C[401]
401
P Register
272
2
P
ENV
L
Stack marker
used to save
and restore
caller's
(procedure A's)
environment
272
P Register
Top-of-stack
at time of call
to procedure B
Data Segment
VST288.vsd