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doc: Update minimum nasm recommendation and details

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Change-Id: Icb113242c0ab7f3c75af3e65a8d519511f4ed4c3
Signed-off-by: Greg Tucker <greg.b.tucker@intel.com>
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Greg Tucker 2021-05-27 17:44:31 -07:00
parent 393f69fcac
commit 0f7bf1c04d
2 changed files with 28 additions and 5 deletions
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README.md
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@ -33,8 +33,8 @@ Building ISA-L
* Optional: Building with autotools requires autoconf/automake packages.
x86_64:
* Assembler: nasm v2.11.01 or later (nasm v2.13 or better suggested for building in AVX512 support)
or yasm version 1.2.0 or later.
* Assembler: nasm. Version 2.15 or later suggested (other versions of nasm and
yasm may build but with limited function [support.](doc/build.md)
* Compiler: gcc, clang, icc or VC compiler.
aarch64:

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doc/build.md
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@ -1,9 +1,32 @@
# ISA-L Build Details
For x86-64 builds it is highly recommended to get an up-to-date version of
## Build tools
NASM: For x86-64 builds it is highly recommended to get an up-to-date version of
[nasm] that can understand the latest instruction sets. Building with an older
version is usually possible but the library may lack some function versions for
the best performance.
assembler version is often possible but the library may lack some function
versions for the best performance. For example, as a minimum, nasm v2.11.01 or
yasm 1.2.0 can be used to build a limited functionality library but it will not
include any function versions with AVX2, AVX512, or optimizations for many
processors before the assembler's build. The configure or make tools can run
tests to check the assembler's knowledge of new instructions and change build
defines. For autoconf builds, check the output of configure for full nasm
support as it includes the following lines.
checking for nasm... yes
checking for modern nasm... yes
checking for optional nasm AVX512 support... yes
checking for additional nasm AVX512 support... yes
If an appropriate nasm is not available from your distro, it is simple to build
from source or download an executable from [nasm].
git clone --depth=10 https://github.com/netwide-assembler/nasm
cd nasm
./autogen.sh
./configure
make
sudo make install
## Windows Build Environment Details