1 files changed, 38 insertions, 0 deletions
diff --git a/src/op/control_flow/br.c b/src/op/control_flow/br.c
new file mode 100644
index 0000000..df3aacb
--- /dev/null
+++ b/src/op/control_flow/br.c
@@ -0,0 +1,38 @@
+/*
+ * nanowasm, a tiny WebAssembly/Wasm interpreter
+ * Copyright (C) 2023-2024  Xavier Del Campo Romero
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+#include <nw/log.h>
+#include <nw/ops.h>
+#include <nanowasm/nw.h>
+#include <nw/types.h>
+#include <stddef.h>
+#include <stdio.h>
+
+static int op(struct nw_interp *const i, FILE *const f)
+{
+    varuint32 relative_depth;
+
+    if (varuint32_read(f, &relative_depth))
+    {
+        LOG("%s: varuint32_read failed\n", __func__);
+        return -1;
+    }
+
+    return 0;
+}
+
+int op_br(struct nw_interp *const i)
+{
+    return op(i, i->f);
+}
+
+int check_br(FILE *const f)
+{
+    return op(NULL, f);
+}