First commit

1 files changed, 34 insertions, 0 deletions

diff --git a/src/op/check/misc.c b/src/op/check/misc.c
new file mode 100644
index 0000000..fc89d21
--- /dev/null
+++ b/src/op/check/misc.c
@@ -0,0 +1,34 @@
+/*
+ * nanowasm, a tiny WebAssembly/Wasm interpreter
+ * Copyright (C) 2023-2025  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 <nanowasm/nw.h>
+#include <nw/io.h>
+#include <nw/ops.h>
+
+static enum nw_state run(struct nw_mod *const m)
+{
+    unsigned char op;
+    const struct nw_io_cfg *const cfg = &m->cfg.io;
+    struct nw_sm_io io = {0};
+    enum nw_state n;
+
+    io.buf = &op;
+    io.n = sizeof op;
+
+    if ((n = nwp_io_read(cfg, &io, cfg->user)))
+        return n;
+
+    m->next = m->sm.code.next;
+    return NW_AGAIN;
+}
+
+void nwp_op_check_misc(struct nw_mod *const m)
+{
+    m->next = run;
+}