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OS

19-2 SSU(SW) OS team project.

과제1 : 부트로더 작성하기 (4장 ~ 5장)

  • 추가 구현 :
    • 현재 날짜를 출력 및 요일 출력

과제2 : 커널 초기화 (6장 ~ 10장)

  • 추가 구현 :
    • 사용 가능 메모리 크기 알아내기
    • 페이지 테이블 이용
      • Double Mapping
      • Finer-grained Page Table
      • Read-only page

과제3 : 쉘 구현하기 (11장 ~ 15장)

  • 추가 구현 :
    • Exception Handler 구현
      • page fault
      • protection fault
    • Shell 기능 확장
      • 명령어 history 기능
      • 명령어 자동 입력 기능

과제4 : 멀티태스킹 구현 및 스케쥴러 구현 (16장 ~ 21장)

  • 추가 구현 :
    • Proportional Share 스케쥴러 만들기
      • Lottery Scheduler
      • Stride Scheduler

과제5 : 동적 메모리 관리 및 파일 시스템 구현 (23장 ~ 27장)

  • 추가 구현 :
    • 파일 시스템 추가 구현
      • subdirectory 구현
      • 파일 세부정보 구현

추가 구현

  • fork()
    • 호출한 Process의 메모리 공간, 레지스터, PC 값을 복사하여 새로운 Process 생성
  • exec()
    • SSU Binary File을 메모리에 로딩하여, 프로세스를 새롭게 시작하도록 구현
  • vi editor (hex editor)
    • Editor 내에 Hex 값 (0 ~ 9, a ~ f, A ~ F) 입력시 Disk에 Hex값 그대로 저장

(Eng)

OS

19-2 SSU(SW) OS team project.

Assignment #1 : Write Bootloader (Chapter 4 ~ 5)

  • Extra Implementation :
    • Print out the date of today and the day of the week.

Assignment #2 : Initialize Kernel (Chapter 6 ~ 10)

  • Extra Implementation :
    • Figure out a size of availible memory
    • Manage a page table includes below features
      • Double Mapping
      • Finer-grained Page Table
      • Read-only Page

Assignment #3 : Implement Shell (Chapter 11 ~ 15)

  • Extra Implementation :
    • Implement exception handler includes below features
      • Page Fault
      • Protection Fault
    • Support additional features like below
      • Command History
      • Automatic Command Completion

Assignment #4 : Implement Multitasking and Scheduler (Chapter 16 ~ 21)

  • Extra Implementation :
    • Support proportional share scheduler such as below
      • Lottery Scheduler
      • Stride Scheduler

Assignment #5 : Manage dynamic memory and implement file system (Chapter 23 ~ 27)

  • Extra Implementation :
    • Support file system features like below
      • Subdirectory
      • Detail of a file

Extra Implementation (free subject)

  • fork()
    • Generate a new process with copying memory spaces, registers and program counter of caller process.
  • exec()
    • Start a process newly by loading SSU binary file on memory.
  • vi editor (hex editor)
    • Write down, to disk, hex values (0 ~ 9, a ~ f, A ~ F) when a user type and save them on the editor.

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