nasm/macros/ifunc.mac
H. Peter Anvin aa958b1ab6 ifunc.mac: the ilog2 warning may want to be both ceil and floor
There is no reason why the warning-generating ilog2 has to be only the
floor variant.  However, I am pretty sure we can simply implement the
ilog2cw() as a macro only; we can always fix that if that turns out to
be incorrect.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2016-05-24 23:03:17 -07:00

48 lines
2 KiB
Text

;; --------------------------------------------------------------------------
;;
;; Copyright 2012-2016 The NASM Authors - All Rights Reserved
;; See the file AUTHORS included with the NASM distribution for
;; the specific copyright holders.
;;
;; Redistribution and use in source and binary forms, with or without
;; modification, are permitted provided that the following
;; conditions are met:
;;
;; * Redistributions of source code must retain the above copyright
;; notice, this list of conditions and the following disclaimer.
;; * Redistributions in binary form must reproduce the above
;; copyright notice, this list of conditions and the following
;; disclaimer in the documentation and/or other materials provided
;; with the distribution.
;;
;; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
;; CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
;; INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
;; MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
;; DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
;; CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
;; SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
;; NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
;; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
;; HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
;; CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
;; OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
;; EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
;;
;; --------------------------------------------------------------------------
;;
;; ifunc.mac
;;
;; Integer function utility macros
;;
USE: ifunc
%idefine ilog2(x) (__ilog2e__(x))
%idefine ilog2e(x) (__ilog2e__(x))
%idefine ilog2w(x) (__ilog2w__(x))
%idefine ilog2fw(x) (__ilog2w__(x))
%idefine ilog2f(x) (__ilog2f__(x))
%idefine ilog2cw(x) (__ilog2w__(x) * 0 + __ilog2c__(x))
%idefine ilog2c(x) (__ilog2c__(x))