First commit1st

1 files changed, 48 insertions, 0 deletions

diff --git a/src/interp/routines/full.c b/src/interp/routines/full.c
new file mode 100644
index 0000000..c60432d
--- /dev/null
+++ b/src/interp/routines/full.c
@@ -0,0 +1,48 @@
+/*
+ * 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/interp.h>
+#include <nw/io.h>
+#include <nw/log.h>
+#include <nw/opcodes.h>
+#include <nw/ops.h>
+#include <nw/routines.h>
+#include <inttypes.h>
+
+static enum nw_state get_bytecode(struct nw_interp *const i)
+{
+    const struct nw_io_cfg *const cfg = &i->cfg.io;
+    struct nw_i_sm_b *const b = &i->sm.bytecode;
+    const enum nw_state n = nwp_io_read(cfg, &b->io);
+
+    if (n)
+        return n;
+    else if (b->op >= nwp_ops.n)
+    {
+        static const char exc[] = "invalid opcode";
+
+        LOG("%s: %s: %#" PRIx8 "\n", __func__, exc, b->op);
+        i->exception = exc;
+    }
+
+    nwp_ops.ops[b->op](i);
+    return NW_AGAIN;
+}
+
+void nwp_interp_full(struct nw_interp *const i)
+{
+    struct nw_i_sm_b *const b = &i->sm.bytecode;
+
+    i->next = get_bytecode;
+    b->io = (const struct nw_sm_io)
+    {
+        .buf = &b->op,
+        .n = sizeof b->op
+    };
+}