Module 16 Study Guide

Learning Objectives

• Define standard terminology describing the subprogram call and return process, including activation, activation record, subprogram linkage, environment pointer (EP), stack pointer (SP), epilogue, prologue, run-time stack, static link, static chain, dynamic link, dynamic chain, etc.
• Explain how subprogram activations work by illustrating the contents of memory during execution, including the items mentioned below
• Explain how a return address is stored and used after a call to return control to a caller
• Explain how a dynamic link is determined, stored, and restored after a call
• Explain how a static link is determined, stored, and restored after a call
• Explain how parameters are computed and stored in an activation record
• Explain how local variables are allocated in an activation record
• Explain what must be done by the caller and what must be done by the callee to realize program linkage
• Explain how space for nested blocks is allocated
• Explain how dynamic scope is implemented in terms of deep and shallow

Resources

• CPL 10
• Slides: Lam

Lab

Please complete the lab for this week in class.

Deliverables

The test for this module will take place on Canvas on Friday. You will have an opportunity to re-take a different version of the same test next week. If you choose to do the re-take, your grade for this module will be the higher of the two scores.