• Ben <Ben_member pathlink.com> Oct 28 2004

Hi, I'm probably posting to the wrong place. For a start my 
query is with C not C++, but I'm a little desperate, 
so thought I'd try here ...

I've been given some old code that I hope to use to control a couple of stepper
motors as part of a final year project. I need to make some modifications
however, and to do that I have to be able to recompile it (I have the source)It
uses bios.h and dos.h, so only runs on 98 and older machines. I've tried
compiling it with DigitalMars, and it compiles fine, but when linking gives the
following errors:

Dualstep.obj(Dualstep)
Error 42: Symbol Undefined _outportb
Dualstep.obj(Dualstep)
Error 42: Symbol Undefined _inportb
Dualstep.obj(Dualstep)
Error 42: Symbol Undefined _delay

Does anyone know what this means, and what I might be able to
do about it?

I don't know what compiler the original source was compiled under, so that 
may be the problem ...

Thanks,

Ben