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https://github.com/netwide-assembler/nasm.git
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d235408c65
Enough users expect the namespace starting with underscore to be safe for symbols. Change our private namespace from __foo__ to __?foo?__. Use %defalias to provide backwards compatiblity (by using %defalias instead of %define, we handle the case properly where the user changes the value.) Add a preprocessor directive: %aliases off ... to disable all smacro aliases and thereby making the namespace clean. Finally, fix infinite recursion when seeing %? or %?? due to paste_tokens(). If we don't paste anything, the expansion is done. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
49 lines
2.0 KiB
Plaintext
49 lines
2.0 KiB
Plaintext
;; --------------------------------------------------------------------------
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;;
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;; Copyright 2012-2016 The NASM Authors - All Rights Reserved
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;; See the file AUTHORS included with the NASM distribution for
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;; the specific copyright holders.
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;;
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;; Redistribution and use in source and binary forms, with or without
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;; modification, are permitted provided that the following
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;; conditions are met:
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;;
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;; * Redistributions of source code must retain the above copyright
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;; notice, this list of conditions and the following disclaimer.
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;; * Redistributions in binary form must reproduce the above
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;; copyright notice, this list of conditions and the following
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;; disclaimer in the documentation and/or other materials provided
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;; with the distribution.
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;;
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;; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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;; CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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;; INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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;; MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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;; DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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;; CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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;; SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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;; NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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;; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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;; HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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;; CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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;; OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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;; EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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;;
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;; --------------------------------------------------------------------------
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;;
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;; ifunc.mac
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;;
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;; Integer function utility macros
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;;
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USE: ifunc
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%idefine ilog2(x) (__?ilog2e?__(x))
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%idefine ilog2e(x) (__?ilog2e?__(x))
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%idefine ilog2w(x) (__?ilog2w?__(x))
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%idefine ilog2fw(x) (__?ilog2w?__(x))
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%idefine ilog2f(x) (__?ilog2f?__(x))
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%idefine ilog2cw(x) (__?ilog2w?__(x) * 0 + __?ilog2c?__(x))
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%idefine ilog2c(x) (__?ilog2c?__(x))
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