From: XXguille AT XXiies DOT XXes (Guillermo Rodriguez Garcia) Newsgroups: comp.os.msdos.djgpp Subject: Re: __tb?? what is it for? Date: Sun, 09 May 1999 17:28:39 GMT Organization: Telefonica Transmision de Datos Lines: 23 Message-ID: <3736c539.1705277@noticias.iies.es> References: <19990509142131 DOT 18905 DOT rocketmail AT send205 DOT yahoomail DOT com> NNTP-Posting-Host: iies229.iies.es Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit X-Newsreader: Forte Agent 1.5/32.451 To: djgpp AT delorie DOT com DJ-Gateway: from newsgroup comp.os.msdos.djgpp Reply-To: djgpp AT delorie DOT com El día Sun, 9 May 1999 07:21:31 -0700 (PDT), Mohamed Saad escribió: > >Hi all, > just a small qusestion... :D > what is __tb? i know it is a macro substitution for >some thing ( and i saw it in info!). but... what is >its use?? __tb is the transfer buffer located in low (DOS) memory which DJGPP uses to transfer info to/from for DOS calls and the like. You can use it for your own purposes (check the size first) as long as you remember that library calls can thrash the info in the buffer. If you don't know what you need it for, then probably you just don't need it. Regards, GUILLE ---- Guillermo Rodriguez Garcia XXguille AT XXiies DOT XXes (ya sabes :-)