On 1/2/2015 9:03 AM, Andy Stamp wrote: > Hello Folks, > > I've been working on creating a program called LPXLATE which converts > ESC/P print data from legacy apps into PCL or PS for printing on > modern printers. > > Most of my time has been spent working on the conversion routines, but > I would like to start working on integrating this code into a TSR that > could be installed and would hijack calls to output bytes to the > parallel port and feed them into this app which in turn would output > the translated data via the parallel port. > > I am wondering what resources I should look into for info on hijacking > BIOS calls (INT 17h) and creating TSRs. > > I downloaded a copy of Ralf Brown's interrupt list and found Peter > Norton's guide to programming the IBM PC at a thrift store. > > A quick Googling suggests Undocumented DOS and the IBM PC XT hardware > reference. > Is there any proprietary info in these that would taint my > contributions to FreeDOS? These are all valid resources, published for the very purpose of developing DOS based software. > > Obviously reading leak MS/DR-DOS source code is bad, but I want to > make sure. > Those are of course off-limits. (Well, a bit questionable in case of DR-DOS, I don't know what exactly the license said when it was briefly available as OpenDOS)
Ralf --- This email has been checked for viruses by Avast antivirus software. http://www.avast.com ------------------------------------------------------------------------------ Dive into the World of Parallel Programming! The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net _______________________________________________ Freedos-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/freedos-devel
