1 files changed, 64 insertions, 0 deletions
diff --git a/src/op/call_indirect.c b/src/op/call_indirect.c
new file mode 100644
index 0000000..f41a14d
--- /dev/null
+++ b/src/op/call_indirect.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/io.h>
+#include <nw/ops.h>
+#include <nw/routines.h>
+#include <nw/types.h>
+
+static enum nw_state get_pc(struct nw_interp *const i)
+{
+    struct nw_i_sm_call *const c = &i->sm.call;
+    const struct nw_io_cfg *const cfg = &i->cfg.io;
+    const enum nw_state n = cfg->tell(&i->fr.pc, cfg->user);
+
+    if (n)
+        return n;
+
+    nwp_call(i, c->index);
+    return NW_AGAIN;
+}
+
+static enum nw_state get_value(struct nw_interp *const i)
+{
+    struct nw_i_sm_call_indirect *const ci = &i->sm.call_indirect;
+    struct nw_sm_leb128 *const l = &ci->leb128;
+    const struct nw_io_cfg *const cfg = &i->cfg.io;
+    const enum nw_state n = nwp_varuint32(cfg, l, &ci->value, cfg->user);
+
+    if (n)
+        return n;
+
+    i->next = get_pc;
+    return NW_AGAIN;
+}
+
+static enum nw_state get_index(struct nw_interp *const i)
+{
+    struct nw_i_sm_call_indirect *const ci = &i->sm.call_indirect;
+    struct nw_sm_leb128 *const l = &ci->leb128;
+    const struct nw_io_cfg *const cfg = &i->cfg.io;
+    const enum nw_state n = nwp_varuint32(cfg, l, &ci->index, cfg->user);
+
+    if (n)
+        return n;
+
+    i->next = get_value;
+    return NW_AGAIN;
+}
+
+void nwp_op_call_indirect(struct nw_interp *const i)
+{
+    static const struct nw_i_sm_call_indirect ci = {0};
+
+    i->sm.call_indirect = ci;
+    i->next = get_index;
+}