previously defined GFX directive is now used for player graphics
only). The 6502 core tracks each of these separately, which provides
for more accurate disassembly.
Modified debugger font and disassembler to show GFX and PGFX with
special characters, instead of using 'X' as Distella does. This also
allows gives much more informative disassembled outout.
git-svn-id: svn://svn.code.sf.net/p/stella/code/trunk@2156 8b62c5a3-ac7e-4cc8-8f21-d9a121418aba
0388ab89e5