On 7 January 2011 13:52, andrzej zaborowski <bal...@zabor.org> wrote: > On 6 January 2011 22:54, Aurelien Jarno <aurel...@aurel32.net> wrote: >> Improve constant loading in two ways: >> - On all ARM versions, it's possible to load 0xffffff00 = -0x100 using >> the mvn rd, #0. Fix the conditions. >> - On <= ARMv6 versions, where movw and movt are not available, load the >> constants using mov and orr with rotations depending on the constant >> to load. This is very useful for example to load constants where the >> low byte is 0. This reduce the generated code size by about 7%. > > That's a nice improvement. For some instructions using MVN and AND
Oops, I mean for some *values*.
