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I made my own DOS implementation (Announce)

posted by samwdpckr, 22.03.2024, 16:21
(edited by samwdpckr on 22.03.2024, 16:53)

> Yes, absolutely.
> It allows to allocate some memory (and copy resident code to it) which will
>
> remain resident when the program calls exit().
> There are other ways to stay TSR; but this has a couple of advantages.
That does not require modifying the struct manually.

It is also not documented that the owner of a memory block changes when its size is changed. But I can easily change the behaviour of the kernel so that it works like that. Currently it does not change the owner.

The way the memory allocation structs are done in MS-DOS is inefficient and makes it slow to traverse the memory allocations backwards, especially when there is a large number of allocated memory blocks.

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