Practice - Allocating Offsets to Variables within an Activation Record
Practice Questions
Test your understanding with targeted questions
What is the purpose of an activation record?
💡 Hint: Think about what data a function needs during its execution.
How does the Frame Pointer (FP) assist in accessing variables?
💡 Hint: Consider how the FP is used in conjunction with offsets.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does the Frame Pointer (FP) do?
💡 Hint: Consider its role in accessing variables within an activation record.
True or False: Local variables are stored at positive offsets in an activation record.
💡 Hint: Think about how the stack grows when parameters are pushed.
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Challenge Problems
Push your limits with advanced challenges
If a function has three parameters (each needing 4 bytes) and two local variables (each needing 8 bytes), calculate the total size of the activation record including a 4-byte return address and the size needed for saved registers. Provide the offset for each variable if the FP starts at 1000.
💡 Hint: Calculate based on each variable's size and determine their respective offsets from the FP.
Explain how the allocation of offsets in an activation record can affect recursive function calls. Use an example to illustrate.
💡 Hint: Consider how memory management ensures each generation persists its own data.
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Reference links
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