First commit

3 files changed, 65 insertions, 0 deletions

diff --git a/src/interp/mem/CMakeLists.txt b/src/interp/mem/CMakeLists.txt
new file mode 100644
index 0000000..0f0e056
--- /dev/null
+++ b/src/interp/mem/CMakeLists.txt
@@ -0,0 +1,11 @@
+# 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/.
+
+target_sources(${PROJECT_NAME} PRIVATE
+    load.c
+    store.c
+)
diff --git a/src/interp/mem/load.c b/src/interp/mem/load.c
new file mode 100644
index 0000000..0ccf29b
--- /dev/null
+++ b/src/interp/mem/load.c
@@ -0,0 +1,27 @@
+/*
+ * 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/mem.h>
+#include <nw/log.h>
+
+enum nw_state nwp_mem_load(const struct nw_mem_cfg *const cfg,
+    struct nw_sm_io *const io, const nw_varuint32 offset, void *const user)
+{
+    void *const dst = (unsigned char *)io->buf + io->read;
+    const int n = cfg->load(offset + io->read, dst, io->n - io->read, user);
+
+    if (n < 0)
+        return NW_FATAL;
+    else if ((io->read += n) >= io->n)
+        return NW_OK;
+
+    return NW_AGAIN;
+}
diff --git a/src/interp/mem/store.c b/src/interp/mem/store.c
new file mode 100644
index 0000000..cc58169
--- /dev/null
+++ b/src/interp/mem/store.c
@@ -0,0 +1,27 @@
+/*
+ * 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/mem.h>
+#include <nw/log.h>
+
+enum nw_state nwp_mem_store(const struct nw_mem_cfg *const cfg,
+    struct nw_sm_io *const io, const nw_varuint32 offset, void *const user)
+{
+    const void *const src = (const unsigned char *)io->buf + io->read;
+    const int n = cfg->store(offset + io->read, src, io->n - io->read, user);
+
+    if (n < 0)
+        return NW_FATAL;
+    else if ((io->read += n) >= io->n)
+        return NW_OK;
+
+    return NW_AGAIN;
+}