--- src/sys/boot/common/loader.8	2004/03/11 12:28:57	1.5
+++ src/sys/boot/common/loader.8	2004/06/17 19:37:29	1.6
@@ -452,6 +452,8 @@ Set the number of
 buffers to be allocated.
 Overrides
 .Dv NSFBUFS .
+.It Va kern.mmxopt
+Toggles the mmx optimizations for the bcopy/copyin/copyout routines
 .It Va kern.vm.kmem.size
 Sets the size of kernel memory (bytes).
 This overrides the value determined when the kernel was compiled.