On Tue, Oct 1, 2019 at 1:30 AM Ralf Quint <freedos...@gmail.com> wrote: > On 9/30/2019 9:45 PM, dmccunney wrote: > > On Mon, Sep 30, 2019 at 11:38 PM Ben Collver <bencoll...@riseup.net> wrote: > >> Ralf Quint wrote: > >>> On 9/29/2019 7:10 PM, dmccunney wrote:
> As mentioned in another reply, Paradox is a totally different case, with > no relation to dBASE. > > FoxPro used not only the basic database file format, but also the same > basic programming language as dBASE (I know people who transferred their > application from dBASE IV to FoxPro to take advantage of the faster > indexes) but also added a lot of proprietary commands, which meant that > FoxPro programs were not backwards compatible with dBASE. FoxPro also > included its own compiler option, which made using a separate tool like > Clipper unnecessary... Okay. While I played a bit with dBASE back in the day, I never used FoxPro, and wasn't certain how much of the dBASE programming language it used. The answer seems to be "All of it, with additional newer extensions that make it not backward compatible." That's pretty much what I'd expect, and likely wouldn't need it to be backward compatible. I'd be using FoxPro in the first place because dBASE couldn't *do* what I needed to do. > > (I have Paradox and the manuals, but they are not currently accessible > > and I can't Look Stuff Up.) > see above... Thank you. > > And yes, Protected mode was pretty much a requirement. I note SQLite > > for DOS was built using DJGPP, which means you need something like a > > 386 with a memory extender loaded to run it in DOS. I doubt this will > > run on an 8088/8086 in Real Mode. > > dBASE II and III definitely do, I am not sure right now about dBASE IV, > it could be that this required at least an 80286... That sounds about right. Requiring a 286 0r 386 wouldn't be a deal breaker for me. I have long since stopped using my original Intel 8088 XT clone, and don't care whether current code might run on it. Someone who wants to be totally retro and still use ancient PC hardware that was real mode only won't be looking at stuff like this. > Ralf ______ Dennis _______________________________________________ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
