I had recently updated it to v4.0.0. It was a nice update but I couldn't stop there. I was able to save and restore the R9 register properly within the assembly emulation "cores" used in PocketSNES (with credit due to Notaz for his great work writing the assembly CPU core).

So what does this all mean? It means I release v5.0.0 of snes4iphone which gives massive performance increases. The hand written assembly code produced very noticeable performance gains. Even better, previous save states are compatible, SRAM saves now work, and the user interface has been made to match the gpSPhone updates. This means 1000's of ROMs can be loaded, and tons of other fixes. You also now have the option to smooth scale (hardware scaling filter) the screen. It does lower performance a bit though. Any downsides? Well yes. Super Mario RPG is no longer compatible. I will look into this. Note that enabling transparencies in the settings menu may be needed to overcome graphical glitches in games. It's disabled by default for performance reasons.

• iPhone homebrew - snes4iphone v3.5.0

Via ZodTTD