add option "--ttfont" for SDL.
add compile io/necio.c, io/epsonio.c.
remove io.itf.c.
add wavemixer (T.Yui)
replace wavemix:seeksnd1 (T.Yui)
fix wavemix big endian (T.Yui)
fix wavemix big endian (T.Yui)
add hostdrv (readonly...) (T.Yui)
fix hostdrv (T.Yui)
fix hostdrv (T.Yui)
fix hostdrv api (T.Yui)
fix hostdrv (T.Yui)
fix hostdrv (T.Yui)
fix for Panther[MacOSX] (tk800)
change menu key modifier[MacOSX] (tk800)
fix dosio (Win) (T.Yui)
fix hostdrv (T.Yui)
pc -> pccore (T.Yui)
Don't use #pragma. Use __attribute__((packed)), if defined(__GNUC__).
support jast sound. (but not tested yet...)
change VERBOSE(s) macro.