Super Keiba 2 is broken with libretro

[jamsilva]

I compiled the libretro and gtk variants of current master branch and Super Keiba 2 is broken on libretro (I wonder if other games may be suffering the same problem). When you get to the main menu, and select the first option, two other options appear - they are incorrect in the libretro version (see screenshot). Selecting either and trying to go into the game results in a freeze on a black screen; the gtk variant works fine.

[bearoso]

There shouldn't be any emulation differences. You might have to delete the save ram from the retroarch folder or copy over the .srm the Gtk port is using.

[jamsilva]

You are right, it is a SRAM issue. I was hitting the problem mentioned in https://snes.nesdev.org/wiki/Tricky-to-emulate_games. Memory.ClearSRAM() does not get called on the libretro port and thus the SRAM is initialized to all 0s. I deleted the .srm and added a call to Memory.ClearSRAM() right before the return in retro_load_game and that fixes the problem.

[bearoso]

I added that call to ClearSRAM to master.