[LIP] syscall simulation!

Hi,
I'm trying to simulate the system call write().I'm
trying to print "hello world" on console thru this
program. Program compiles properly but doesn't give
any output.

Here's the code snippet. 
main()
{
    char hello[]="hello world\n";
    __asm__ __volatile(
         "xorl %%eax,%%eax\n\t"
         "movl $4,%%eax\n\t"      /*$4 SYS_write*/    
         "xorl %%ebx,%%ebx\n\t"
         "movl $1,%%ebx\n\t"      /*$1 fd for stdout*/
         "movl %0,%%ecx\n\t"      /*string */ 
         "movl $12,%%edx\n\t"     /*strlength*/
         "int $0x80\n\t"
         ::"g" (hello)
    );
        printf("\n");
}

pls help! 

regards
sanjay


		
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