> In that case, your core is a 4Kc and not a 4KEc. The "r2" value in the does that mean all 4KEc must support MIPS32R2 ? TI claims to use an 4KEc core for their AR7/UR8 SoCs, but they only support MIPS32R1. Thomas. -- Crap can work. Given enough thrust pigs will fly, but it's not necessary a good idea. [ RFC1925, 2.3 ]