On 7/29/2016 5:04 PM, David McMackins wrote: > I have some modifications I'd like to make to PowerPaint as hosted on > the FreeDOS archives, but I'm unable to compile the source. I'm > attempting to use FreePascal to do the job, but it's failing to compile > some of the units due to assembler syntax errors. > > I can't exactly tell what the problem is; the syntax looks fine to me, > but it's throwing 'Unknown identifier "DX"' and similar for vga2.pas > > Is there another assembler or compiler I need to be using for this program? Well, I can tell you exactly what the problem is: It is a Turbo Pascal program, using the BGI (Borland Graphics Interface) library for the graphics. That simply won't fly to compile in FreePascal, which is from the get-go a 32bit compiler that can't handle the BGI graphics drivers.
Furthermore, any inline assembler, beside being 32bit, is by default in AT&T syntax and not the Intel like syntax used in the Borland compilers... For all practical purposes, even there is now a 16bit x86 target option for FreePascal, just trying to compile the sources without significant re-working simply won't work... Ralf --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ------------------------------------------------------------------------------ _______________________________________________ Freedos-devel mailing list Freedos-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-devel
