improved exception handling in running_machine::run() (nw)

git-svn-id: svn://dspnet.fr/mame/trunk@23968 749742ba-7341-0410-aadc-df50b521781e
decodmd2: Updated to use MC6845_UPDATE_ROW, and corrected status return. (no whatsnew)

git-svn-id: svn://dspnet.fr/mame/trunk@23969 749742ba-7341-0410-aadc-df50b521781e
whitestar: Hooked up Deco Type 2 DMD.

git-svn-id: svn://dspnet.fr/mame/trunk@23970 749742ba-7341-0410-aadc-df50b521781e
(MESS) H8: hopefully stop O.S.'s compiler doing unsafe things.

git-svn-id: svn://dspnet.fr/mame/trunk@23971 749742ba-7341-0410-aadc-df50b521781e
type x skeleton.

I have no interest in this *at all* but I keep getting bugged about it so I'm giving people a place to pt notes.

From an objective point of view we at least need somewhere to establish details and proper documentation about the hardware and what the original platform consists of in both terms of PC side, software side and original security side before the there is no hope at all due to the travesty being created by all the hacked to run on PC dumps or 'files copied from mounted encrypted partitions' type junk.  That at least I feel is our duty because nobody else is going to care.

git-svn-id: svn://dspnet.fr/mame/trunk@23977 749742ba-7341-0410-aadc-df50b521781e
arm.c: Modernized cpu core. (nw)

git-svn-id: svn://dspnet.fr/mame/trunk@23978 749742ba-7341-0410-aadc-df50b521781e