Slides: Address Translation

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# Address Translation
## CSC 213 – September 14, 2026

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# Agenda for Today
1. Department Events
2. Upcoming Work
3. Address Spaces
4. Address Translation
5. Wrap Up

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# Department Events

## CS Table: Bring Your Own Tech/Society News
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  Tuesday, September 15th at noon in the CS Commons
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*To receive a token, send an email to let me know you attended no more than 48 hours after the event.*

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# Upcoming Work

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# Assignment 2: Sorted List

**Due:** Monday, September 14th by 11:59pm  
**Late Deadline:** Wednesday, September 16th at 10:00am

## Questions
*Nothing new since last class.*

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# Shell Lab

**Due:** Wednesday, September 16th by 11:59pm  
**Late Deadline:** Monday, September 21st by 11:59pm

## Questions
*Nothing new since last class.*

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# Assignment 3: Archive Printer

**Due:** Monday, September 21st by 11:59pm  
**Late Deadline:** Wednesday, September 23rd at 10:00am

Let's take a look at the assignment now.

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# Address Spaces

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# Discussion: Address Spaces
**Questions for think, pair, share:**

1. What are the main pieces of a running program's address space?

2. What is the difference between virtual and physical addresses?

3. Why does the OS run programs in separate address spaces?

*Start by thinking of answers on your own. I will let you know when to start discussion.*

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# Whiteboard: A Typical Address Space

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# Address Translation

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# Discussion: Address Translation
**Questions for think, pair, share:**

1. What does it mean to "translate" an address, and why are we doing it?

2. We've read about two mechanisms for address translation: ***base and bound*** and ***paging***.
   What are the main differences between these mechanisms?
   
3. What are the advantages and disadvantages of paging, compared to base and bound?

*Start by thinking of answers on your own. I will let you know when to start discussion.*

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# Whiteboard: Address Translation

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# Wrap Up

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# Reminders

## Upcoming Deadlines
- **Sorted List Assignment:** due tonight, or Wednesday morning with a token
- **Shell Lab:** due Wednesday, or next Monday with a token
- **Archive Printer:** due next Monday, or Wednesday morning with a token

## Need help? Use your resources!
- Book an appointment during office hours
- Attend mentor office hours (Tuesday from 8-9pm is next)
- Review slides, readings, and other course resources
- Use tools like `gdb` and AddressSanitizer to catch and diagnose issues

## Reading

- **Review lab before class**
            
- **Chapter 29: Signal Handling** (Beej's Guide to C)