Squashed 'externals/biscuit/' content from commit 1d53c9e6

git-subtree-dir: externals/biscuit
git-subtree-split: 1d53c9e6cfe56544982200a5bac15a5de064936b

examples/CMakeLists.txt

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+add_subdirectory(cpuinfo)

examples/cpuinfo/CMakeLists.txt

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+add_executable(cpuinfo cpuinfo.cpp)
+target_link_libraries(cpuinfo biscuit)
+set_property(TARGET cpuinfo PROPERTY CXX_STANDARD 20)

examples/cpuinfo/cpuinfo.cpp

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+// Copyright (c), 2022, KNS Group LLC (YADRO)
+//
+// Use of this source code is governed by an MIT-style
+// license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
+#include <biscuit/assembler.hpp>
+#include <biscuit/cpuinfo.hpp>
+
+#include <iostream>
+
+using namespace biscuit;
+
+int main()
+{
+    CPUInfo cpu;
+
+    std::cout << "Has I:" <<  cpu.Has(RISCVExtension::I) << std::endl;
+    std::cout << "Has M:" <<  cpu.Has(RISCVExtension::M) << std::endl;
+    std::cout << "Has A:" <<  cpu.Has(RISCVExtension::A) << std::endl;
+    std::cout << "Has F:" <<  cpu.Has(RISCVExtension::F) << std::endl;
+    std::cout << "Has D:" <<  cpu.Has(RISCVExtension::D) << std::endl;
+    std::cout << "Has C:" <<  cpu.Has(RISCVExtension::C) << std::endl;
+    std::cout << "Has V:" <<  cpu.Has(RISCVExtension::V) << std::endl;
+
+    if (cpu.Has(RISCVExtension::V)) {
+        std::cout << "VLENB:" <<  cpu.GetVlenb() << std::endl;
+    }
+
+    return 0;
+}