Re: linux assembly

["Rakesh Agarwal" <rakesh.agarwal@xxxxxxxxx>]

I have tried the other way round also "source destination" . Even then it
gives segmentation fault

Kedar Patankar wrote:

> > .text
> >
> > BOOTSEG =0x07c0
> > .globl main
> >        .type main,@function
> > main:
> >     mov %ax,BOOTSEG
> >
> > ////////////////////////////////////////////////
> >
> > In the above code I am just trying to move the BOOTSEG value to ax
> > register
> > If i am right the "as" assembler follows source destination sequence
> > unlike TASM,  I have even tried the alternative sequence
> > The above piece of code is giving  a core dump with SIGSEGV
> > (Segmentation fault)
>
>         The "as" assembler uses the AT&T syntax instead of the intel
> syntax. The major difference between the two is that in at&t, the first
> argument to mov is source and the second is the destination - opposite to
> intel convention.
>         I guess the reason why this coredumps is that it tries to write
> contents of ax to BOOTSEG in ds, which causes coredump.
>
>         Regards,
>         Kedar.
> ----------------------------------------------------------------
> Kedar N. Patankar.
> Senior Software Engineer.
> ishoni Networks
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--
Rakesh Agarwal
Systems Engineer
Wipro Tecnologies
72, Electronics City
Bangalore-561229
rakesh.agarwal@xxxxxxxxx
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