If it's not listed in the Rules, it's not allowed. Only allowed Emus are FCEUX, Nestopia, Bizhawk, OpenEMU and MesenRTA.
It is something we probably should consider, we just haven't haven't had many requests for this. I do know it's becoming more popular though.
I may get with you to ask some questions, gather some data, etc. since I know you're pretty knowledgeable about it. We keep the accepted list of platforms/emulators fairly short due to the level of optimization this game has where individual frames are significant.
Effective immediately, any submissions using the SNES9x emulator will not be verified. The SMB1 mod team has concerns about its integrity due to its ability to overclock and remove lag frames, which may not be easily detectable. Additionally, we request that all BizHawk submissions avoid using the S
