User:JForden

Week 1: June 1st, 2022

Tuesday (5/31/22)

• Attended introduction meeting on an introduction to data science.

Wednesday (6/1/22)

• Attended meeting about research outcomes.
• Met with the research team and decided on summer projects.

Thursday (6/2/22)

• Attended team meeting and discussed goals and ideas for the summer projects.
• Identified utilities needed to compile and run operating systems on a local env.

Friday (6/3/22)

• Continued downloading and installing programs.
• Installed RiskV tool chain
• Installed QEMU
• Was able to make and compile xV6 in RiskV on the virtual machine.

Week 2: June 6th, 2022

Monday (6/6/22)

• Out of office

Tuesday (6/7/22)

• Started reading and commenting Xinu source code.
• continued to read RiskV documentation.

Wednesday (6/8/22)

• attended group talk for REU
• talked with Dr. Brylow about roadmap and information for the summer project.
• Project has the ability to build across semesters

Thursday (6/9/22)

• Worked on writing aspects of Xinu in RiskV instead of Arm architecture.
• Able to get "Hello World" to print over the serial driver/port.

Friday (6/10/22)

• Continued development work
• attended team lunch
• attended team meeting to discuss weekly progress with the group.

Week 3: June 13th, 2022

Monday (6/13/22)

• Due to getting a new laptop, all tools needed to be installed again
• changed two Xinu Arm atomic operations, CompareAndSwapStrong and CompareAndSwapWeak, to RiskV
• Was able to get qemu to compile Xinu, hello world printed using RiskV architecture
• Continued to document aspects of the Xinu system in work notebook

Tuesday (6/14/22)

• Continued to read up on trap handlers
• Worked on implementing exception handling in Xinu
• Worked on implementing interrupt handling in Xinu
• Pushed working(hopefully) Xinu RiskV trap handler

Wednesday (6/15/22)

• Added definitions for exceptions and interrupts
• Removed a magic number from dispatch.c
• Attended REU talk

Thursday (6/16/22)

• When Xinu boots, it now switches from machine mode to supervisor mode to handle exceptions
• Spinlocks are now implemented.

Friday (6/17/22)

• Attended team meeting
• Attended team lunch
• Worked with Virgil team on Xinu questions

Week 4: June 20th, 2022

Monday (6/20/22)

• Added Round Robin Scheduling to Xinu

Tuesday 6/22/22)

• Reviewed Xinu Wiki and created a list of issues.
• talked about next steps
• Team meeting to discuss pthreads, internal clock, or memory management as the next TODO.