On 06-Dec-2002 kai ouyang wrote: > Hi,everybody, > > I have one question about GNU ASM syntax. > As I know: > __asm __volatile( > "instructions" > :output > :input > :exception); > In Linux, the restriction of output are "=m","=a", etc. > But I found in FreeBSD, there are "=m" and "+m". > I do not know the difference between "+" and "=". why? > Thank you!
Check the info pages for gcc. = conotes an output-only operand and + conotes an input and output operand. -- John Baldwin <[EMAIL PROTECTED]> <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/ To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-hackers" in the body of the message
