How can I execute time-critical code in internal idata RAM of the C161? I located my interrupt routine to 0xfc60, but both simulator and target monitor show that it's as slow as executed from the external 8-bit-wide RAM. I also tried locating the module to some other address and then copied it to 0xfc60 during run-time. It worked, but didn't speed up either. The only way to increase speed (in simulation only, of course) is changing the BUSCON0 to 16-bit bus mode, so I assume that the respective module actually isn't stored in the internal RAM What can I try? Thanks!