Matthieu Bucchianeri 0fbbc0070c Add support for DOS Upper Memory Blocks (UMBs). (#38) ...

* Import unmodified USE!UMBS source.

From https://forum.vcfed.org/index.php?threads/loading-dos-high-on-a-xt.32320/

* Customize the UMB Driver prompts.

* Refactor memory management. Allow activation of EMS/UMB on demand.

* Update the XTEMM and XTUMBS drivers to map their ranges.

* Add instructions for all the drivers.

2025-03-07 22:00:26 -08:00

815 B

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