core:
- more accurate emulation of backup chips (add emulation aux HOLD bit);

git-svn-id: https://svn.code.sf.net/p/desmume/code/trunk@4807 5577840e-afb3-4e59-9ef3-2b7f898b1952
core:
- fix backup memory hacks;

git-svn-id: https://svn.code.sf.net/p/desmume/code/trunk@4808 5577840e-afb3-4e59-9ef3-2b7f898b1952
core:
- add DSi Enhanced ROM detection;
- add new country code info (O - USA);

git-svn-id: https://svn.code.sf.net/p/desmume/code/trunk@4809 5577840e-afb3-4e59-9ef3-2b7f898b1952
core:
- add backup size hack for Dementium II;

git-svn-id: https://svn.code.sf.net/p/desmume/code/trunk@4810 5577840e-afb3-4e59-9ef3-2b7f898b1952