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Michael Brown 24b52ae476 [prefix] Add A20-enabling code in libflat ... iPXE currently insists on residing in an even megabyte. This imposes undesirably severe constraints upon our PMM allocation strategy, and limits our options for mechanisms to access ROMs greater than 64kB in size. Add A20 handling code to libflat so that prefixes are able to access memory even in odd megabytes. The algorithms and tuning parameters in the new A20 handling code are based upon a mixture of the existing iPXE A20 code and the A20 code from the 2.6.32 Linux kernel. Signed-off-by: Michael Brown <mcb30@ipxe.org>		2010-04-20 21:00:42 +01:00
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libflat.S	[prefix] Add A20-enabling code in libflat	2010-04-20 21:00:42 +01:00
libkir.S	[legal] Add a selection of FILE_LICENCE declarations	2009-05-18 08:33:25 +01:00
libpm.S	Merged mcb30-realmode-redesign back to HEAD	2005-04-08 15:01:17 +00:00
librm_mgmt.c	[misc] Fix source files erroneously marked as executable	2009-06-02 11:26:09 +01:00
librm.S	[prefix] Use flat real mode instead of real mode	2010-04-19 23:43:48 +01:00