bcopy(9)
NAME
bcopy -  Copy one area of memory to another
SYNOPSIS
char * bcopy (const char *src, char *dest, int count);
ARGUMENTS
src          Where to copy from
dest         Where to copy to
count        The size of the area.
DESCRIPTION
Note  that  this is the same as memcpy, with the arguments
reversed.  memcpy is the standard, bcopy is a  legacy  BSD
function.
- You  should  not use this function to access IO space, use
memcpy_toio or memcpy_fromio instead.