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IDEAS.md

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ExectOS Ideas

This is a list of ideas that migh but not must be realized.

SDK

  • Currently XT Development Kit (XTDK) is a garbage. It should be cleaned up the way, it contains all structures and definitions, as well as all routines that are exported and can be used by other components or software dynamically linked. All other routines should be available as well in some form, as some libraries can share code with others (eg. XTLDR calls routines exported by XTOSKRNL). This is partially done, as XTDK has been cleaned up, but still there are routines used by XTLDR.

XTLDR

  • Rewrite memory mapping and paging support in bootloader to make it more flexible and architecture independent. This should support paging levels, thus allowing to make a use of PML5 on modern AMD64 processors and increasing the addressable virtual memory from 256TB to 128PB. This is partially done.
  • Implement a scrolling mechanism to boot menu allowing to show more boot entries than can fit in the box. Currently, the limit is not set, nor check, thus adding more menu items will result in positions displayed under the box.
  • Implement editing boot menu entries directly from the boot menu. Changes should be runtime only (not stored on disk).

XTOSKRNL

  • Implement mechanism for detecting CPU features and checking hardware requirements. If CPU does not meet requirements, it should cause a kernel panic before any non-supported instruction is being used.
  • Finish framebuffer and terminal implementation. Initialization code is already prepared as well as routines for clearing the screen and drawing single points. Terminal should be instantiable (should be able to create many terminals and switch between them) and work on top of FB. It should define ANSI colors and scrollback buffer.