On Aug 16, 2014, at 8:58 PM, Jason White wrote: > I have to wonder if there exist other emulators written in C like this th= at could be fit in a microcontroller?=20 http://spritesmods.com/?art=3Davrcpm& ~2k emulator for 8080 that runs on on AVR. (full CP/M including peripherals= on an 8k AVR.) Also references a Propeller emulator of similar (rather ne= at!) structure. Not "C", though. Probably could be. The ARM architectures is interesting in that increasing CPU word size (to 3= 2bits) doesn't significantly increase the emulator complexity; unlike a 68k= (for example), you don't have separate instructions for all the different = operand sizes (just load/store, approximately.) (One of the reasons that u= sing 8bit math on ARM can be slower than 32bit math=85) BillW --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .