First commit

1 files changed, 64 insertions, 0 deletions

diff --git a/src/op/tee_local.c b/src/op/tee_local.c
new file mode 100644
index 0000000..b95603c
--- /dev/null
+++ b/src/op/tee_local.c
@@ -0,0 +1,64 @@
+/*
+ * 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/interp.h>
+#include <nw/log.h>
+#include <nw/ops.h>
+#include <nw/routines.h>
+#include <nw/stack.h>
+
+static enum nw_state push(struct nw_interp *const i)
+{
+    struct nw_i_sm_tee_local *const t = &i->sm.tee_local;
+    const enum nw_state n = nwp_stack_push(i, &t->io);
+
+    if (n)
+        return n;
+
+    nwp_interp_resume(i);
+    return NW_AGAIN;
+}
+
+static enum nw_state prepare(struct nw_interp *const i)
+{
+    struct nw_i_sm_tee_local *const t = &i->sm.tee_local;
+    struct nw_i_sm_set_local_out o;
+    size_t sz;
+
+    o = i->sm.set_local.out;
+
+    if (nwp_type_sz(o.type, &sz))
+    {
+        static const char *const exc = "invalid local type";
+
+        i->exception = exc;
+#ifdef NW_LOG
+        nwp_log("%s: %#x\n", exc, (unsigned)o.type);
+#endif
+        return NW_FATAL;
+    }
+    else
+    {
+        struct nw_i_sm_tee_local tl = {{0}};
+
+        tl.in = o;
+        tl.io.buf = &t->in.value;
+        tl.io.n = sz;
+        *t = tl;
+        i->next = push;
+    }
+
+    return NW_AGAIN;
+}
+
+void nwp_op_tee_local(struct nw_interp *const i)
+{
+    nwp_set_local(i, prepare);
+}