Administrivia

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Administrivia

• CMSC412
• Web Page
• http//www.cs.umd.edu/class/fall2004/cmsc412/
• Newsgroup
• csd.cmsc412
• Recitation Mon/Wed in CSIC 2107
• Look on webpage for details
• Office Hours in Linuxlab
• Look on the webpage for details

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Remarks

• read the GeekOS source code
• take the class seriously
• academic dishonesty could hurt badly
• start the project the day it is posted
• dont panicproject is usually simpler than it
  looks (with some exceptions)
• every not-personal issue post on the newsgroup,
  dont email TAs
• at semester end youll have learned an awesome lot

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GeekOS

• boot
• process interrupts
• create/schedule threads
• few synchronization primitives
• few I/O routines
• load and run executables
• shell
• usermode
• filesystem
• virtual memory(paging)

DONE
YOU WILL DO
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Project0 Roadmap

• best documentation read the GeekOS source code
• add a thread
• Start_Kernel_Thread()
• read a key, print its Keycode
• Wait_For_Key/Print( keycodex,c)
• analyze the Keycode
• KEY_XXX_FLAG (keyboard.h/keyboard.c)
• echo once
• test for d
• if buffer full or d pressed, call count()

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Cyclone

• http//www.cs.umd.edu/projects/cyclone/online-manu
  al/
• proj0 output and wc output should be identical