Makefile

• Added the -std=c++17 flag to enable better constexpr support.
• Removed optimizations as the system would crash with them. The BlueScreen would show an empty callstack on crashes with -O2 so I guess the problem is the missing ebp or something like that.

Changes

• Removed the Input.h/Input.cc files
• Made device classes singletons
• Changed the multitasking assembly (use stack instead of thread_state)
• Many changes to the scheduler (strategy is still round robin):
  • Merged dispatcher into the scheduler
  • Scheduler no longer uses queue but vector
  • Scheduler owns threads (no outside references)
  • Threads are addressed by tid from the outside
  • Threads are deallocated automatically when killed/exited
  • Retrieve threads from the scheduler without deallocation
  • Scheduler manages blocked threads

Additions

• Some stream manipulators for CGA_Stream (color) and OutStream (fixed width)
• Logging class with support for colored serial port output
• Main menu to start demos
• A very basic system to broadcast keyboard events to threads
• Basic implementation of vector with iterator support
• Basic implementation of unique_ptr
• Basic implementation of fixed size array (just a wrapper for C-style arrays)

Bugs

• Can't exit the PCSPKdemo (bluescreen)
• Random bluescreens that are hard to pinpoint
• Tree Allocator (uses a red black tree to find best-fit blocks) crashes when freelist root is removed