Re: Assembler in GCC

Re: Assembler in GCC

[Anand A]

kris,

Could not find any page in the link you specified. If you have the document can you please send it across?

Thanks and Regards
Anand
---
"There are two ways to live your life.
 One is as though nothing is a miracle.
 The other is as though everything is a miracle."

       - by Albert Einstein(1879 - 1955)


On Fri, 5 Apr 2002 09:53:54   
 Kris Warkentin wrote:
>There's a really good gcc inline assembly tutorial as well - the original
>seems to be missing but the google cache is still there.  Might want to
>save/print it.
>
>http://www.google.ca/search?q=cache:XC7wfkWyTPAC:www.intac.com/~avly/djasm.h
>tml+djasm&hl=en&ie=UTF8
>
>cheers,
>Kris
>----- Original Message -----
>From: "Martin Kahlert" <martin.kahlert@infineon.com>
>To: "Atanas Uzunov" <mcubg@mail.bg>
>Cc: <gcc@gcc.gnu.org>
>Sent: Friday, April 05, 2002 1:44 AM
>Subject: Re: Assembler in GCC
>
>
>> Hi,
>>
>> On Fri, Apr 05, 2002 at 02:04:23AM +0300, Atanas Uzunov wrote:
>> > Hi,
>> > I need to know how to implement simple assembler instructions in C for
>> > example:
>> >
>> > mov ah, 2
>> >
>> > when i wrte this (asm ("mov ah, 2"::)) i get the message: Error: suffix
>or
>> > operands invalid for `mov'
>>
>> Try this links:
>> http://www-106.ibm.com/developerworks/linux/library/l-ia.html?dwzone=linux
>> http://www.cs.virginia.edu/~clc5q/links.html
>>
>> Based on that, i would suggest something like that:
>>
>> int main (int argc, char **argv)
>> {
>>  asm volatile ("movb $2, %%ah" : : :"eax");
>> }
>>
>> Read gcc's info page about extended inline assembly, too.
>>
>> Hope that helps,
>> Martin.
>>
>> --
>> The early bird catches the worm. If you want something else for
>> breakfast, get up later.
>>
>
>


See Dave Matthews Band live or win a signed guitar
http://r.lycos.com/r/bmgfly_mail_dmb/http://win.ipromotions.com/lycos_020201/splash.asp 

Re: Assembler in GCC

[Kris Warkentin]

There's a really good gcc inline assembly tutorial as well - the original
seems to be missing but the google cache is still there.  Might want to
save/print it.

http://www.google.ca/search?q=cache:XC7wfkWyTPAC:www.intac.com/~avly/djasm.h
tml+djasm&hl=en&ie=UTF8

cheers,
Kris
----- Original Message -----
From: "Martin Kahlert" <martin.kahlert@infineon.com>
To: "Atanas Uzunov" <mcubg@mail.bg>
Cc: <gcc@gcc.gnu.org>
Sent: Friday, April 05, 2002 1:44 AM
Subject: Re: Assembler in GCC


> Hi,
>
> On Fri, Apr 05, 2002 at 02:04:23AM +0300, Atanas Uzunov wrote:
> > Hi,
> > I need to know how to implement simple assembler instructions in C for
> > example:
> >
> > mov ah, 2
> >
> > when i wrte this (asm ("mov ah, 2"::)) i get the message: Error: suffix
or
> > operands invalid for `mov'
>
> Try this links:
> http://www-106.ibm.com/developerworks/linux/library/l-ia.html?dwzone=linux
> http://www.cs.virginia.edu/~clc5q/links.html
>
> Based on that, i would suggest something like that:
>
> int main (int argc, char **argv)
> {
>  asm volatile ("movb $2, %%ah" : : :"eax");
> }
>
> Read gcc's info page about extended inline assembly, too.
>
> Hope that helps,
> Martin.
>
> --
> The early bird catches the worm. If you want something else for
> breakfast, get up later.
>

Re: Assembler in GCC

[Martin Kahlert]

Hi,

On Fri, Apr 05, 2002 at 02:04:23AM +0300, Atanas Uzunov wrote:
> Hi,
> I need to know how to implement simple assembler instructions in C for
> example:
> 
> mov ah, 2
> 
> when i wrte this (asm ("mov ah, 2"::)) i get the message: Error: suffix or
> operands invalid for `mov'

Try this links:
http://www-106.ibm.com/developerworks/linux/library/l-ia.html?dwzone=linux
http://www.cs.virginia.edu/~clc5q/links.html

Based on that, i would suggest something like that:

int main (int argc, char **argv)
{
 asm volatile ("movb $2, %%ah" : : :"eax");
}

Read gcc's info page about extended inline assembly, too.

Hope that helps,
Martin.

-- 
The early bird catches the worm. If you want something else for       
breakfast, get up later.

Assembler in GCC

[Atanas Uzunov]

Hi,
I need to know how to implement simple assembler instructions in C for
example:

mov ah, 2

when i wrte this (asm ("mov ah, 2"::)) i get the message: Error: suffix or
operands invalid for `mov'

In help files there are examples only with somthing like that : mov %0,%1
...
nothing said about ah, al ...

Atanas Uzunov