First commit

1 files changed, 47 insertions, 0 deletions

diff --git a/src/dbg/global.c b/src/dbg/global.c
new file mode 100644
index 0000000..cad17ae
--- /dev/null
+++ b/src/dbg/global.c
@@ -0,0 +1,47 @@
+/*
+ * 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 <nanowasm/dbg.h>
+#include <nw/global.h>
+#include <nw/log.h>
+#include <nw/types.h>
+
+static enum nw_state read_global(struct nw_interp *const i)
+{
+    struct nw_dbg *const d = i->args;
+    struct nw_dbg_sm_global *const pg = &d->sm.global;
+    struct nw_dbg_value *const v = &d->v;
+    const struct nw_global *const gl = &pg->gl;
+    const enum nw_state n = nwp_global_load(i, &pg->io, pg->index);
+
+    if (n)
+        return n;
+
+    v->type = gl->type;
+    v->value = gl->value;
+    i->next = pg->inext;
+    return NW_AGAIN;
+}
+
+void nw_dbg_global(struct nw_dbg *const d, const unsigned long index)
+{
+    const struct nw_dbg_sm_global gl = {0};
+    struct nw_dbg_sm_global *const pg = &d->sm.global;
+    struct nw_sm_io *const io = &pg->io;
+    struct nw_interp *const i = &d->cfg.inst->interp;
+
+    *pg = gl;
+    pg->index = index;
+    pg->inext = i->next;
+    io->buf = &pg->gl;
+    io->n = sizeof pg->gl;
+    i->args = d;
+    i->next = read_global;
+}