you can't just convert the interupts by switching the flags. the system calls are way different. And no prob. Thanks, Tyler Littlefield email: tyler at tysdomain.com web: tysdomain-com Visit for quality software and web design. skype: st8amnd2005 ----- Original Message ----- From: "Al Sten-Clanton" <Albert.E.Sten_Clanton@xxxxxxxxxxx> To: "'Speakup is a screen review system for Linux.'" <speakup at braille.uwo.ca> Sent: Wednesday, November 12, 2008 9:51 AM Subject: RE: programming question > I'm in the early stages of learning assembly on my Linux box. Feel free > to > correct me, of course, since I'm a beginner on my Linux box and never did > any assembly programming in DOS. My understanding is that using > > Int 0x80 > > With the appropriate number in the EAX register (and sometimes things in > other registers) is equivalent to the DOS interrupt routines. > > Also, Tyler, thanks for the links. I rely on two assembly books, > "Assembly > Language Step-by-Step: Programming with DOS and Linux, Second Edition," by > Jeff Duntemann, and "Professional Assembly Language," by Richard Blum. I > now mostly use Blum's book, because it covers more instructions and > because > it uses the GNU assembler instead of NASM. (I much prefer the AT&T syntax > to Intel's.) I have these books by way of a farily expensive online > service, > though, and don't think there's a cost-free version of either. (I do > believe there's at least a separate electronic version of Blum's book that > you can buy.) Blum's book sometimes contains poor explanations, so I hope > I > may get some additional help from one or more of the links. > > Al > -----Original Message----- > From: speakup-bounces at braille.uwo.ca > [mailto:speakup-bounces at braille.uwo.ca] > On Behalf Of Kerry Hoath > Sent: Wednesday, November 12, 2008 6:05 AM > To: Speakup is a screen review system for Linux. > Subject: Re: programming question > > Regarding assembler under Linux; there are a few things you should know. > firstly any programs you wrote in dos would need to be completely > rewritten, > > as Linux does not have a series of interrupt routines like dos; > so you can't call int 10h, int21h etc. > also note that Linux's memory model is flat; and does not use segment > registers in the way 08x86 assembler does. > > there are assemblers under Linux, you want the manpages for as86 and nasm, > note however that the syntax differs for Linux from dos syntax. > > Lame and flac have assembler code if you want to take a look at some. > Regards, Kerry. > > ----- Original Message ----- > From: "Bruce Noblick" <brunobrook at columbus.rr.com> > To: "speakup info" <speakup at braille.uwo.ca> > Sent: Wednesday, November 12, 2008 10:10 AM > Subject: programming question > > >>A few years ago, I took a unix course. We connected to a linux box to do >>most of our work. During that class I found some man pages on the subject >>I am going to ask about now. I remember being very qhrilled with this >>information. Now that I have my own linux box, I can't find these man >>pages on it. I am looking for information on assembler language >>programming. I have programs that I have written for DOS and Windows that >>I would like to port to linux and they are written in Assembler language. >> >> Thanks! >> >> Bruce Noblick >> >> >> Those who revered the Lord spoke to one another, and the Lord listened >> attentively. A memory book was prepared before Him in which were recorded >> the names of those who respected the Lord and honored His name. >> >> "They will belong to Me," says the Lord who rules over all, "in the day >> when I prepare My own special property. I will spare them as a man spares >> his son who serves him." >> >> Malachi 3:16-17 >> >> See my web page for contact info and a lot more. >> Here is the address. >> HTTP://HOME.COLUMBUS.RR.COM/bnoblick >> If the above line does not act like a link, try cutting and pasting it to >> your browser. >> >> _______________________________________________ >> Speakup mailing list >> Speakup at braille.uwo.ca >> http://speech.braille.uwo.ca/mailman/listinfo/speakup >> > > _______________________________________________ > Speakup mailing list > Speakup at braille.uwo.ca > http://speech.braille.uwo.ca/mailman/listinfo/speakup > > -- > Internal Virus Database is out-of-date. > Checked by AVG Free Edition. > Version: 7.5.446 / Virus Database: 270.8.1/696 - Release Date: 10/15/2008 > 12:00 AM > > > -- > Internal Virus Database is out-of-date. > Checked by AVG Free Edition. > Version: 7.5.446 / Virus Database: 270.8.1/696 - Release Date: 10/15/2008 > 12:00 AM > > > _______________________________________________ > Speakup mailing list > Speakup at braille.uwo.ca > http://speech.braille.uwo.ca/mailman/listinfo/speakup
