SDL.txt: edited by someone who actually knows what these do ;-) (nw)


git-svn-id: svn://dspnet.fr/mame/trunk@23551 749742ba-7341-0410-aadc-df50b521781e
attache: Fixed CMOS RAM reading.

git-svn-id: svn://dspnet.fr/mame/trunk@23552 749742ba-7341-0410-aadc-df50b521781e
attache: fixed RTC detection and reading.

git-svn-id: svn://dspnet.fr/mame/trunk@23553 749742ba-7341-0410-aadc-df50b521781e
- Added USE_SIMD flag to RSP headers and began converting some opcodes to use
  SSE* intrinsics. Current plan is to target SSSE3-capable hardware (Core2 and
  up), with the resulting speedup theorized to be on the order of 5-10x when
  conversion is complete, though this applies only to situations where the
  emulation is heavily bottlenecked by the RSP. [MooglyGuy]

git-svn-id: svn://dspnet.fr/mame/trunk@23554 749742ba-7341-0410-aadc-df50b521781e
Turn off USE_SIMD, nw

git-svn-id: svn://dspnet.fr/mame/trunk@23555 749742ba-7341-0410-aadc-df50b521781e