I get the snes9x code from svn.pspdev.org and I compile it.After that,I copy the eboot.pbp to psp\game150\.When I run the program,it cause a black screen and aften about 5 seconds,the psp automatically shutdown.
My psp system is M33 3.52 and the code version 361.
That port is really old, from the looks of the SVN log.
At the very least you probably need to run psp-fixup-imports on the elf before packing it into the PBP.