I going to put a lot of GBA roms on my EZFIV and one of them will be the Pokemon Emerald and Pokemon Fire Red but I remember ages ago there was a problem in getting the clock to run. Is this still a problem that needs an IPS file?
The EZ-IV has no clock. You can patch Ruby and Sapphire with GBATA to enable the time based events without the clock, but I don't think there is a patch for Emerald. AFAIK, Fire Red and Leaf Green didn't use a clock.