Enhance shadow support: Write-enable c, d, e segments; write protect
-option roms before boot. When copying bios - just copy from high
-memory.
-
-Replace hand-rolled memory allocation code with new malloc_fseg() and
-malloc_high() functions.
-
-Refactor acpi rsdt table creation code - allow each sub-table to be
-added dynamically.
-
-Deploy smbios in high memory.
+option roms before boot.
Unify floppy functions and main disk functions?