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Re: help with different treatment of asms in 3.2 and 3.3?
- From: Michael Matz <matz at suse dot de>
- To: Brad Lucier <lucier at math dot purdue dot edu>
- Cc: <gcc at gcc dot gnu dot org>
- Date: Tue, 5 Nov 2002 17:21:17 +0100 (CET)
- Subject: Re: help with different treatment of asms in 3.2 and 3.3?
Hi again,
On Tue, 5 Nov 2002, Michael Matz wrote:
> GCC is right here. You don't need (or want) to use register variables
> here. A better way is:
>
> int Int_quot(int numerator, int denominator) {
> __asm__ __volatile__ ("cdq\n idivl %2"
> : "=a" (numerator)
> : "0" (numerator), "rm" (denominator)
> : "edx");
>
> return numerator;
> }
I forgot to mention: The use of asm is nonsensical here anyway. A simple
int Int_quot (int n, int d) { return n / d; }
produces exactly the same code.
Ciao,
Michael.