diff --git a/.github/workflows/avm-ci.yml b/.github/workflows/avm-ci.yml
index 56055ba8..6655d043 100644
--- a/.github/workflows/avm-ci.yml
+++ b/.github/workflows/avm-ci.yml
@@ -3,12 +3,17 @@ name: AVM ISA Cross-Port CI
 on:
   push:
     paths:
-      - 'python/avm.py'
-      - 'go/avm.go'
-      - 'rust/src/avm/**'
-      - 'c/avm.c'
-      - 'cpp/avm.hpp'
+      - 'python/**'
+      - 'go/**'
+      - 'rust/src/**'
+      - 'c/**'
+      - 'cpp/**'
+      - 'julia/**'
+      - 'r/**'
       - 'fortran/**'
+      - 'octave/**'
+      - 'scala/**'
+      - 'coq/**'
       - 'tests/**'
       - 'scripts/wolfram_verify.py'
   workflow_dispatch:
@@ -18,16 +23,18 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5 with: { python-version: '3.12' }
-      - name: Run Python AVM tests
-        run: PYTHONPATH=python python3 -m pytest tests/test_avm_python.py -v
+      - uses: actions/setup-python@v5
+        with: { python-version: '3.12' }
+      - name: Python AVM tests
+        run: PYTHONPATH=python python3 tests/test_avm_python.py
 
   go:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-go@v5 with: { go-version: '1.26' }
-      - name: Run Go AVM tests
+      - uses: actions/setup-go@v5
+        with: { go-version: '1.26' }
+      - name: Go AVM tests
         run: go test -v ./go/
 
   rust:
@@ -35,32 +42,45 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: actions-rust-lang/setup-rust-toolchain@v1
-      - name: Run Rust AVM tests
+      - name: Rust AVM tests
         run: cd rust && cargo test
 
   c:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - name: Build and run C AVM tests
-        run: |
-          gcc -o c/test_avm c/test_avm.c -lm
-          ./c/test_avm
+      - name: C AVM tests
+        run: gcc -o /tmp/c_avm c/test_avm.c -lm && /tmp/c_avm
 
   cpp:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - name: Build and run C++ AVM tests
-        run: |
-          g++ -std=c++20 -o cpp/test_avm cpp/test_avm.cpp
-          ./cpp/test_avm
+      - name: C++ AVM tests
+        run: g++ -std=c++17 -o /tmp/cpp_avm cpp/test_avm.cpp && /tmp/cpp_avm
+
+  julia:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: julia-actions/setup-julia@v2
+      - name: Julia AVM tests
+        run: julia julia/AVMIsa/test_avm.jl
+
+  r:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: r-lib/actions/setup-r@v2
+      - name: R AVM tests
+        run: Rscript r/AVMIsa/test_avm.r
 
   wolfram-verify:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5 with: { python-version: '3.12' }
+      - uses: actions/setup-python@v5
+        with: { python-version: '3.12' }
       - name: Wolfram Alpha verification
         run: python3 scripts/wolfram_verify.py
         env:
@@ -68,8 +88,8 @@ jobs:
 
   cross-verify:
     runs-on: ubuntu-latest
-    needs: [python, go, rust, c, cpp]
+    needs: [python, go, rust, c, cpp, julia, r]
     steps:
       - uses: actions/checkout@v4
       - name: All AVM ports passed
-        run: echo "✅ All AVM ISA port tests passed"
+        run: echo "✅ All AVM ISA port tests passed (Python, Go, Rust, C, C++, Julia, R)"
diff --git a/scripts/wolfram_verify.py b/scripts/wolfram_verify.py
index 45c5b80c..6cadb800 100644
--- a/scripts/wolfram_verify.py
+++ b/scripts/wolfram_verify.py
@@ -36,18 +36,34 @@ def verify_arithmetic():
     return results
 
 def run_port_tests():
-    """Run all AVM port test harnesses and collect results."""
+    """Run ALL AVM port test harnesses."""
+    import shutil
     results = {}
+
+    # Each port: (name, [cmd, args...], working_dir_relative, env_add)
     ports = [
-        ("Python", [sys.executable, "tests/test_avm_python.py"], {"cwd": SILVER, "env": {**os.environ, "PYTHONPATH": str(SILVER / "python")}}),
-        ("Rust", ["cargo", "test"], {"cwd": SILVER / "rust"}),
+        ("Python", [sys.executable, "tests/test_avm_python.py"], ".", {"PYTHONPATH": str(SILVER / "python")}),
+        ("Rust", ["cargo", "test"], "rust", {}),
+        ("Go", ["go", "test", "-v", "./go/"], ".", {}),
+        ("C", ["sh", "-c", "gcc -o /tmp/c_avm_test c/test_avm.c -lm && /tmp/c_avm_test"], ".", {}),
+        ("C++", ["sh", "-c", "g++ -std=c++20 -o /tmp/cpp_avm_test cpp/test_avm.cpp && /tmp/cpp_avm_test"], ".", {}),
+        ("Julia", ["julia", "julia/AVMIsa/test_avm.jl"], ".", {}),
+        ("R", ["Rscript", "r/AVMIsa/test_avm.r"], ".", {}),
+        ("Octave", ["octave", "--no-gui", "octave/test_avm.m"], ".", {}),
     ]
-    for name, cmd, kw in ports:
+
+    for name, cmd, wd, env_add in ports:
+        exe = cmd[0]
+        if not shutil.which(exe.split()[0] if '/' in exe else exe):
+            results[name] = {"passed": False, "skipped": True, "reason": f"{exe} not found"}
+            continue
         try:
-            r = subprocess.run(cmd, capture_output=True, text=True, timeout=60, **kw)
-            results[name] = {"passed": r.returncode == 0, "output": r.stdout[-200:]}
+            env = {**os.environ, **env_add}
+            r = subprocess.run(cmd, capture_output=True, text=True, timeout=120, cwd=SILVER / wd, env=env)
+            ok = r.returncode == 0 and ("fail" not in r.stdout.lower() and "error" not in r.stdout.lower()[:500])
+            results[name] = {"passed": ok, "output": r.stdout[-300:]}
         except Exception as e:
-            results[name] = {"passed": False, "error": str(e)}
+            results[name] = {"passed": False, "error": str(e)[:200]}
     return results
 
 def main():