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A free Windows-compatible Operating System - mirrored from GitHub
2e1b82cf72
[HAL]: The I/O Permissions Map on a typical Privileged Mode x86 OS is all 0xFF's, so it's quite wasteful to copy-in/out the entire map each single BIOS Call. As an optimization, only save and restore non-0xFF entries. [NTOS]: Define and use constants for different IOPM values, instead of using hardcoded values. svn path=/trunk/; revision=44841 |
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