Kernel string implementation I386.

[manish regmi <regmi.manish@xxxxxxxxx>]

hi all,
    In the code below, which is string implementation of Linux Kernel,
Why the dummy variables are updated.

#define __HAVE_ARCH_STRCPY
static inline char * strcpy(char * dest,const char *src)
{
int d0, d1, d2;
__asm__ __volatile__(
	"1:\tlodsb\n\t"
	"stosb\n\t"
	"testb %%al,%%al\n\t"
	"jne 1b"
	: "=&S" (d0), "=&D" (d1), "=&a" (d2)
	:"0" (src),"1" (dest) : "memory");
return dest;
}

So, What's wrong with this,

static inline char * strcpy(char * dest,const char *src)
{
__asm__ __volatile__(
	"1:\tlodsb\n\t"
	"stosb\n\t"
	"testb %%al,%%al\n\t"
	"jne 1b"
	:"0" (src),"1" (dest) : "memory");
return dest;
}

thanks in advance 
Manish Regmi

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