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Leah Rowe
9044b55c48
instead, use a single integer, set to 1 if using these commands (otherwise set to 0) used as an XOR mask. use this to invert where data gets read. one quirk with this is that if a copy operation is performed from a part with a bad checksum, it's already done in advance, in memory, but then the check on the checksum in cmd_copy is now checking the other part, which will be all zeroes, so i invert that too; this means now when running cmd_copy, it'll complain about an invalid part, but the part number is inverted. it's a small price to pay, because this restores the previous performance optimisations but without being as unsafe. this is also true when doing the swap. Signed-off-by: Leah Rowe <leah@libreboot.org>