"kai ouyang" wrote: > >I do not know the difference between "+" and "=". why? > Thank you, I got it from 'info gcc'. > It is the reason that "Extended asm supports input-output or read-write > operands. Use the constraint character `+' to indicate such an operand > and list it with the output operands.".
Also be aware that different versions of gcc treat this differently. We use gcc-2.95 on FreeBSD 4.x and gcc-3.2.1 on FreeBSD 5.x. Those versions are much more sensitive and have stricter requirements than gcc-2.8 and earlier. Cheers, -Peter -- Peter Wemm - [EMAIL PROTECTED]; [EMAIL PROTECTED]; [EMAIL PROTECTED] "All of this is for nothing if we don't go to the stars" - JMS/B5 To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-hackers" in the body of the message
