Assignment Information

Assignment Policies:

• Slip Days - Submitting an assignment after the deadline.
• Assignment Pick-up: Marked assignments will be posted to MarkUs and can also be viewed by clicking on the "Marks Online" link from the main page.
• Assignment marking reappraisal requests:
  If there is a problem with the marking your assignment, you may request that your assignment be reappraised. To do this:
  • Fill out a reappraisal form, on which you should describe (briefly) what the problem is.
  • Email your form off to the IA that is coordinating marking.
  For each assignment there is a deadline of two weeks after the marks are made available for reappraisal requests. A Piazza post will be made after grades are published for each assignment with further instructions for remark requests.

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Reference Material:

• Revision Control: Git
  • Git Magic.
  • Git Reference.
  • Git Manual.
  • Git Tutorial.
  • Links to the Pro Git Book, references, vidoes and more.
• Debugging: GDB Online Documentation
• Sys/161 machine simulator reference: MIPS R3000 Software Reference Manual
• ELF (Executable and Linking Format) Specification
• An Introduction to Programming with Threads, by Andrew Birrell

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OS/161 Information

OS/161 Essentials

• OS/161 Installation Guide for the student.cs computing environment.
• OS/161 Installation Guide for other machines (follow these instructions when working from home).
• Working with OS/161 - how to build, run, and debug OS/161 kernels.
• Debugging OS/161 with GDB
• OS/161 and tools FAQ, read this if you experience problems when running or installing OS/161.
• Browseable OS/161 man pages, including system call details.
• The sys161 manual, including hardware, running and debugging information.

Other OS/161 links

• A paper about OS/161 from SIGCSE 2002.
• The OS/161 home page at Harvard.

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Submitting Your Work and Checking Your Submission

• Overview of cs350_submit - how to submit your work and check that it will compile for marking.

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Assignment Specifications:

Do NOT leave assignments until the last week. Start early!
Remember: late assignments receive a grade of 0%.

Descriptions of assignments will be made available as the term progresses. Preliminary versions of assignment 1-3 are available but updates will be made to clarify several problems. Please follow on Piazza for updates regarding these assignments.

Assignment 0

• Due Date: February 1st, 5:00 pm
• Slip days may be used.
• Assignment 0 description.

Assignment 1

• Due Date: Friday, Feb 10th at 5 PM
• Slip days may be used.
• Userspace Makefile (Makefile).
• Userspace starter code (minishell.c).
• Assignment 1 description.
• Assignment 1 OS/161 Kernel Implementation hints

Assignment 2

• Due Date: Friday, Mar 3rd at 5 PM
• Slip days may be used.
• Assignment 2 description.
• Assignment 2 starter code.

Assignment 3

• Due Date: Friday, Mar 31st at 5 PM
• Slip days cannot be used.
• Assignment 3 description.