Date: Wed, 15 Nov 1995 16:45:46 +0100 From: Torbjorn Granlund <tege@matematik.su.se> To: freebsd-hackers@freebsd.org Subject: outb/inb usage Message-ID: <199511151545.QAA08749@insanus.matematik.su.se>
next in thread | raw e-mail | index | archive | help
Now that GCC 2.7.1 is out, you should consider changing the way outb/inb
is used in inline asm constructs. This is the right way to do it now:
__asm __volatile ("outb %b0,%w1" : : "a" (x), "Nd" (0));
__asm __volatile ("outb %b0,%w1" : : "a" (x), "Nd" (1000));
__asm __volatile ("outb %b0,%w1" : : "a" (x), "Nd" (port));
For older versions of GCC, simply leave out the `N'.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199511151545.QAA08749>