>I still think it would still be easier to build a calculator API and just > implement what you need into Blocek.
Probably yes. But I think that matematical API would be very interresting. It is technological masturbation :-) Some difficulties could be with return of floating point functions.FPU registers work as stacks so no confusion whether read or not read can't occur. ----- Original Message ----- From: "Tony G" <[EMAIL PROTECTED]> To: <freedos-devel@lists.sourceforge.net> Sent: Tuesday, April 10, 2007 10:37 PM Subject: Re: [Freedos-devel] ideas about FreeDOS resident calculator > I still think it would still be easier to build a calculator API and just > implement what you need into Blocek. Simple calculations would be of course > easy to do, but imagine having to do complex functions, with nested levels > would require recursive calls on an interrupt... > > The original intent of interrupt handlers of course are to perform quick > tasks and return to the caller, so that would rule out the interrupt theory. > However, I am not without a suggestion. FDRC can use an Interrupt to give an > address to a function lookup table in ES:BX DX:AX whatever. Each of the > mathematical functions of FDRC can be offset from that table... > > The only problem would be the return issue, perhaps pass a pointer in > another register pair or push a pointer on the stack. > > -T > ----- Original Message ----- > From: "Oleg O. Chukaev" <[EMAIL PROTECTED]> > To: "Ladislav Lacina" <freedos-devel@lists.sourceforge.net> > Sent: Tuesday, April 10, 2007 1:16 PM > Subject: Re: [Freedos-devel] ideas about FreeDOS resident calculator > > > > Ladislav Lacina wrote: > > > >>FDRC is nice and comfortable. But you could go further. Now is the TSR > >>module called by hotkey. What about making a alternate interface through > >>some interrupt? Now FDRC serves to users but if you would make some API > >>let's say on 2Fh DOS multiplex it could serve to programmers also. > >>I would like to implement into Blocek a calculator. I could, of course, > >>make own interface and own "brain" but if I could use some function from > >>FDRC, something like [ES:DI=pointer to math expression, AX=xxxxh, > >>INT2Fh --> EAX=computed value] it would be great and very interresting > >>from the technical point of view. > > > > Yes, I agree with you. Two functions are obvious (calculating the value > > of math expression, and checking for presence of another copy of FDRC > > in memory). Which functions should be available via INT 2f except > > these? > > > > > > Oleg O. Chukaev > > > > > > ------------------------------------------------------------------------- > > Take Surveys. Earn Cash. Influence the Future of IT > > Join SourceForge.net's Techsay panel and you'll get the chance to share > > your > > opinions on IT & business topics through brief surveys-and earn cash > > http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV > > _______________________________________________ > > Freedos-devel mailing list > > Freedos-devel@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/freedos-devel > > > > > ------------------------------------------------------------------------- > Take Surveys. Earn Cash. Influence the Future of IT > Join SourceForge.net's Techsay panel and you'll get the chance to share your > opinions on IT & business topics through brief surveys-and earn cash > http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV > _______________________________________________ > Freedos-devel mailing list > Freedos-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/freedos-devel ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Freedos-devel mailing list Freedos-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-devel
