Originally Posted by angrylion
Concerning r6385, things that are apparent from the svn log:
hresdiff should equal hres now, no need to shift;
pixdiff should always be 1 now;
replace ^1 by ^WORD_ADDR_XOR or something;
it's better to eliminate Lsw, hresdiff and pixdiff;
no more need for trickery like

leftuppix = ((leftuppix ^ 2) + 2) ^ 2;

in case you still have it, just


Cool, I'll submit an update to that effect shortly, please let me know if I've done it correctly.

Edit: Done, let me know if it looks right to you.