CoBB has added an non-interactive mode to his emulator. I'd never thought about using stdin/stdout to pass information between executables; but it works well (once I've ironed out the bugs at my end, that is!) All I need to do is pass it instructions via stdin then read back the results (such as a screen dump) through stdout. This can then be, hopefully, used to pass instructions back to Latenite ("Highlight line 43 on file source.asm", for example, to show where the PC is).