On Sat, Aug 03, 2002 at 11:22:16AM +0100, Nicholas Clark wrote: > How come there is abs_i_i to put the absolute value of $2 into $1, but there's > no abs_i to convert $1 to absolute? > > I can write more a efficient implementation of abs_i, because I don't need to > store the value back if it's already >=0. If the parrot assembler had the > option of writing out abs I$foo rather than abs I$foo, I$foo then things will > go slightly faster (and I suspect on all platforms, including interpreted > platforms)
similarly or_i_i_i exists, but not or_i_i (logical or) or_i_i doesn't need to write back to $1 if $1 is already true. Nicholas Clark -- Even better than the real thing: http://nms-cgi.sourceforge.net/
