Squashed 'external/xbyak/' content from commit 431abd86

git-subtree-dir: external/xbyak
git-subtree-split: 431abd865e70a46d56f5aa0e1f87572decb60169

.github/workflows/main.yml

@@ -0,0 +1,50 @@
+name: test
+on:
+  push:
+    branches:
+      - '*'
+
+defaults:
+  run:
+    shell: sh
+
+permissions:
+  contents: read
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    container:
+      image: debian:testing
+    steps:
+    - uses: actions/checkout@v5
+    - run: apt -y update
+    - run: apt -y install ca-certificates g++-multilib clang libboost-dev make yasm wget python3 #xz-utils nasm
+    - run: update-ca-certificates
+    - run: yasm --version
+    - name: Install xed and nasm
+      run: |
+        # Note: herumi/xed-bin is maintained by the same author and is a trusted source
+        wget https://github.com/herumi/xed-bin/raw/refs/heads/main/xed.tgz
+        wget https://github.com/herumi/xed-bin/raw/refs/heads/main/nasm.tgz
+        tar xvf xed.tgz
+        tar xvf nasm.tgz
+        mkdir -p ~/bin
+        mv xed ~/bin/
+        mv nasm ~/bin/
+
+    - name: Add ~/bin to PATH
+      run: echo "$HOME/bin" >> $GITHUB_PATH
+
+    - name: Check versions
+      run: |
+        xed -version
+        nasm -version
+
+    - run: |
+        make test
+        make -C sample CXXFLAGS="-DXBYAK_NO_EXCEPTION"
+        cd test
+        make xed_test
+        rm -rf jmp64
+        env CXX=""clang++ -std=c++20"" make jmp64 && ./jmp64