d081f0db5d
Support generating bfloat16 constants. This is a bit awkward, as "DW" already generates IEEE half precision constants; therefore there is no longer a single floating-point format for each size. This requires some replumbing. Fortunately bfloat16 fits in 64 bits, so support generating them with a macro that uses __?bfloat16?__() to convert to integers first before passing them to DW. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
62 lines
2.3 KiB
Text
62 lines
2.3 KiB
Text
;; --------------------------------------------------------------------------
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;;
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;; Copyright 2010-2020 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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;; fp.mac
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;;
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;; Floating-point utility macros
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;;
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USE: fp
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%define Inf __?Infinity?__
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%define NaN __?QNaN?__
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%define QNaN __?QNaN?__
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%define SNaN __?SNaN?__
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%define float8(x) __?float8?__(x)
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%define float16(x) __?float16?__(x)
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%define bfloat16(x) __?bfloat16?__(x)
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%define float32(x) __?float32?__(x)
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%define float64(x) __?float64?__(x)
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%define float80m(x) __?float80m?__(x)
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%define float80e(x) __?float80e?__(x)
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%define float128l(x) __?float128l?__(x)
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%define float128h(x) __?float128h?__(x)
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%imacro bf16 1-*.nolist
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%rep %0
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dw __?bfloat16?__(%1)
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%rotate 1
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%endrep
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%endmacro
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