Having said all that, it can be a valuable exercise to run your embedded 'C' code through a compiler such as Borland or MSVC; usually, these "big" compilers give much better diagnostics than embedded cross-compilers - which tend ot be rather "small"

You will need to take care to isolate compiler & target specifics, and it's highly unlikely that the code will actually run on the PC, but the information gained from the compiler messages can be very helpful.

I have an ancient copy of MSVC v1.0 which I use purely for its code-browsing facilities; it's still superior to Keil's!