SiFive has define as set of flexible instruction for extending vector
coprocessor, it able to encoding opcode like .insn but with predefined
format.
List of instructions:
sf.vc.x
sf.vc.i
sf.vc.vv
sf.vc.xv
sf.vc.iv
sf.vc.fv
sf.vc.vvv
sf.vc.xvv
sf.vc.ivv
sf.vc.fvv
sf.vc.vvw
sf.vc.xvw
sf.vc.ivw
sf.vc.fvw
sf.vc.v.x
sf.vc.v.i
sf.vc.v.vv
sf.vc.v.xv
sf.vc.v.iv
sf.vc.v.fv
sf.vc.v.vvv
sf.vc.v.xvv
sf.vc.v.ivv
sf.vc.v.fvv
sf.vc.v.vvw
sf.vc.v.xvw
sf.vc.v.ivw
sf.vc.v.fvw
Spec of Xsfvcp
https://www.sifive.com/document-file/sifive-vector-coprocessor-interface-vcix-software
Co-authored-by: Hau Hsu <hau.hsu@sifive.com>
Co-authored-by: Kito Cheng <kito.cheng@sifive.com>
BFD is an object file library. It permits applications to use the
same routines to process object files regardless of their format.
BFD is used by the GNU debugger, assembler, linker, and the binary
utilities.
The documentation on using BFD is scanty and may be occasionally
incorrect. Pointers to documentation problems, or an entirely
rewritten manual, would be appreciated.
There is some BFD internals documentation in doc/bfdint.texi which may
help programmers who want to modify BFD.
BFD is normally built as part of another package. See the build
instructions for that package, probably in a README file in the
appropriate directory.
BFD supports the following configure options:
--target=TARGET
The default target for which to build the library. TARGET is
a configuration target triplet, such as sparc-sun-solaris.
--enable-targets=TARGET,TARGET,TARGET...
Additional targets the library should support. To include
support for all known targets, use --enable-targets=all.
--enable-64-bit-bfd
Include support for 64 bit targets. This is automatically
turned on if you explicitly request a 64 bit target, but not
for --enable-targets=all. This requires a compiler with a 64
bit integer type, such as gcc.
--enable-shared
Build BFD as a shared library.
--with-mmap
Use mmap when accessing files. This is faster on some hosts,
but slower on others. It may not work on all hosts.
Report bugs in BFD to https://sourceware.org/bugzilla/
Patches are encouraged. When sending patches, always send the output
of diff -u or diff -c from the original file to the new file. Do not
send default diff output. Do not make the diff from the new file to
the original file. Remember that any patch must not break other
systems. Remember that BFD must support cross compilation from any
host to any target, so patches which use ``#ifdef HOST'' are not
acceptable. Please also read the ``Reporting Bugs'' section of the
gcc manual.
Bug reports without patches will be remembered, but they may never get
fixed until somebody volunteers to fix them.
Copyright (C) 2012-2023 Free Software Foundation, Inc.
Copying and distribution of this file, with or without modification,
are permitted in any medium without royalty provided the copyright
notice and this notice are preserved.
Nelson Chu
248bf6de04