On Tue, Jul 07, 2009 at 02:40:02PM +0200, Andreas Schwab wrote:
> Gabriel Paubert writes:
>
> > On Fri, Jul 03, 2009 at 10:57:12PM +0200, Andreas Schwab wrote:
> >> The 'Z' constraint is required for a memory operand for insns that don't
> >> have an update form (which would be selected by the %U
Gabriel Paubert writes:
> On Fri, Jul 03, 2009 at 10:57:12PM +0200, Andreas Schwab wrote:
>> The 'Z' constraint is required for a memory operand for insns that don't
>> have an update form (which would be selected by the %U modifier).
>
> Hmmm, I believed that it was for instructions that only
On Fri, Jul 03, 2009 at 10:57:12PM +0200, Andreas Schwab wrote:
> Brad Boyer writes:
>
> > On Fri, Jul 03, 2009 at 12:14:41PM +0530, kernel mailz wrote:
> >> b. using m or Z with a memory address. I tried replacing m/Z but no change
> >> Is there some guideline ?
> >> gcc documentation says Z is
kernel mailz writes:
> My query was more on %U1%X1, I guess it is specifying U and/or X for %1 right
> ?
> what does U/X stand for (is it similar to u - unsigned and x for a hex
> address)
> are there any more literals like U/X/...
The 'U' and 'X' modifiers expand to 'u' and 'x' resp, dependin
Brad Boyer writes:
> On Fri, Jul 03, 2009 at 12:14:41PM +0530, kernel mailz wrote:
>> b. using m or Z with a memory address. I tried replacing m/Z but no change
>> Is there some guideline ?
>> gcc documentation says Z is obsolete. Is m/Z replaceable ?
>
> No idea. I don't remember ever seeing 'Z
Hi Brad,
Thanks for responding.
My query was more on %U1%X1, I guess it is specifying U and/or X for %1 right ?
what does U/X stand for (is it similar to u - unsigned and x for a hex address)
are there any more literals like U/X/...
-Manish
On Fri, Jul 3, 2009 at 11:10 PM, Brad Boyer wrote:
> On
On Fri, Jul 03, 2009 at 12:14:41PM +0530, kernel mailz wrote:
> Thanks for responding to my previous mail. A few more queries
>
> a. What is the use of adding format specifiers in inline assembly
> like
> asm volatile("ld%U1%X1 %0,%1":"=r"(ret) : "m"(*ptr) : "memory");
The format specifiers limit
Hi,
Thanks for responding to my previous mail. A few more queries
a. What is the use of adding format specifiers in inline assembly
like
asm volatile("ld%U1%X1 %0,%1":"=r"(ret) : "m"(*ptr) : "memory");
b. using m or Z with a memory address. I tried replacing m/Z but no change
Is there some guid
