I used one (Pascal compiler) for half a decade on the MSX; I guess the C64 one would be equal or slower speed. We bought (1986/7 I think) a second MSX for compi

I used one (Pascal compiler) for half a decade on the MSX; I guess the C64 one would be equal or slower speed. We bought (1986/7 I think) a second MSX for compiling and testing + a monitor switch, so I could keep working during compilation and crashes. It was painful. But I did like it (and still do sometimes, but my MSX has SD cards, a lot more memory and I have many of them; also, most of the work can be done on an emulator anyway before I test it on the metal). Edit; actually remembered I had that setup before using/having TP I think; C and asm compiling and crashing were equally annoying. I switched to TP because I opened a company with a family member and he did all in TP and already had a large (I thought at the time) codebase.