Fuse ZX Spectrum has a newer version than in the debian/raspbian repository.
Compiled as SDL version it works well with custom Dispmanx SDL. the newer version also adds better support for joysticks , button 1 fire, button 2 open menu
I have compiled it successfully from sourceforge repo and tar releases on raspberry pi 2
libspectrum needs compiling and installing first.
http://sourceforge.net/projects/fuse-emulator/files/libspectrum/1.1.1/libspectrum-1.1.1.tar.gz/download
Fuse
http://sourceforge.net/projects/fuse-emulator/files/fuse/1.1.1/fuse-1.1.1.tar.gz/download
./configure –without-libao –without-gpm –without-gtk –with-sdl
im configuring with armv7-a and neon-vfpv4 on rpi 2.