... Or it might be better to call this WDC816CC and anything from fcntl as it seems that all the low level I/O stuff is missing.

Still if anyone has managed to use sprintf with WDC's C compiler I would dearly love to know how.

Compiling with the Large memory model (-ml) and linking with the Large C library (-lcl)then I get the following undefined symbols:


I also tried compiling with the Small memory model (-ms) and linking with the Small C library (-lcs)
but still get similar undefined symbols:

So I don't think it's a Large or Compact only deficiency.

Does anything work in their library?

If you need a printf() function, I have one of those I wrote:
https://raw.githubusercontent.com/Kelma ... snprintf.c


XD

_________________
x86?  We ain't got no x86.  We don't NEED no stinking x86!

Thank you, that looks nice and compact - I do believe I will be borrowing it

Most of the standard C library works (it's only the far heap stuff and fcntl I've had issues with) and the mathematical stuff works, floats, long ints, quotients, multiplication etc... The problem is that some of the standard functions depend on malloc (as opposed to farmalloc) and I don't fully understand how to make that play nicely with the large memory model.

It's gotta be. I haven't tried decompiling it (and don't have an emulator to step through it yet either) but the locations of the standard C functions move around and some of the calls seem non-C; i.e. they must be assembly.