I would like to be able to use Nim to compile to C code that is suitable for a Z80 compiler such as [z88dk](https://z88dk.org/site/) or [SDCC](http://sdcc.sourceforge.net/) but am having difficulty in finding the correct command line switches etc.
The documentation lists the switches, but not the possible values. I have been able to find out some of the switch values by typing in gibberish and reading the error message hints, which narrows it down a little. That still doesn't tell me what the difference between "any" and "standalone" for "os" is, for example. I have tried a combination of switches and values for a simple "hello world" text program, but the output seems overly large and complex. Can anyone offer any advice? This is for Nim 1.6.6 on Windows, in case that makes a difference.
