5 files changed, 178 insertions, 0 deletions
diff --git a/src/op/constants/CMakeLists.txt b/src/op/constants/CMakeLists.txt
new file mode 100644
index 0000000..e5cc8c5
--- /dev/null
+++ b/src/op/constants/CMakeLists.txt
@@ -0,0 +1,13 @@
+# 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/.
+
+target_sources(${PROJECT_NAME} PRIVATE
+    f32_const.c
+    f64_const.c
+    i32_const.c
+    i64_const.c
+)
diff --git a/src/op/constants/f32_const.c b/src/op/constants/f32_const.c
new file mode 100644
index 0000000..c0c51b9
--- /dev/null
+++ b/src/op/constants/f32_const.c
@@ -0,0 +1,38 @@
+/*
+ * 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/log.h>
+#include <nw/ops.h>
+#include <nanowasm/nw.h>
+#include <nw/types.h>
+#include <stddef.h>
+#include <stdio.h>
+
+static int op(struct nw_interp *const i, FILE *const f)
+{
+    varuint32 value;
+
+    if (varuint32_read(f, &value))
+    {
+        LOG("%s: varuint32_read failed\n", __func__);
+        return -1;
+    }
+
+    return 0;
+}
+
+int op_f32_const(struct nw_interp *const i)
+{
+    return op(i, i->f);
+}
+
+int check_f32_const(FILE *const f)
+{
+    return op(NULL, f);
+}
diff --git a/src/op/constants/f64_const.c b/src/op/constants/f64_const.c
new file mode 100644
index 0000000..d88398c
--- /dev/null
+++ b/src/op/constants/f64_const.c
@@ -0,0 +1,38 @@
+/*
+ * 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/log.h>
+#include <nw/ops.h>
+#include <nanowasm/nw.h>
+#include <nw/types.h>
+#include <stddef.h>
+#include <stdio.h>
+
+static int op(struct nw_interp *const i, FILE *const f)
+{
+    varuint64 value;
+
+    if (varuint64_read(f, &value))
+    {
+        LOG("%s: varuint64_read failed\n", __func__);
+        return -1;
+    }
+
+    return 0;
+}
+
+int op_f64_const(struct nw_interp *const i)
+{
+    return op(i, i->f);
+}
+
+int check_f64_const(FILE *const f)
+{
+    return op(NULL, f);
+}
diff --git a/src/op/constants/i32_const.c b/src/op/constants/i32_const.c
new file mode 100644
index 0000000..19161d3
--- /dev/null
+++ b/src/op/constants/i32_const.c
@@ -0,0 +1,51 @@
+/*
+ * 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/log.h>
+#include <nw/ops.h>
+#include <nanowasm/nw.h>
+#include <nw/types.h>
+#include <nw/interp.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+
+static int set_value(struct nw_interp *const i, const int32_t src)
+{
+    return interp_stack_push(i, &src, sizeof src);
+}
+
+static int op(struct nw_interp *const i, FILE *const f)
+{
+    varint32 value;
+
+    if (varint32_read(f, &value))
+    {
+        LOG("%s: varint32_read failed\n", __func__);
+        return -1;
+    }
+    else if (i && set_value(i, value))
+    {
+        LOG("%s: set_value failed\n", __func__);
+        return -1;
+    }
+
+    return 0;
+}
+
+int op_i32_const(struct nw_interp *const i)
+{
+    return op(i, i->f);
+}
+
+int check_i32_const(FILE *const f)
+{
+    return op(NULL, f);
+}
diff --git a/src/op/constants/i64_const.c b/src/op/constants/i64_const.c
new file mode 100644
index 0000000..53f4237
--- /dev/null
+++ b/src/op/constants/i64_const.c
@@ -0,0 +1,38 @@
+/*
+ * 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/log.h>
+#include <nw/ops.h>
+#include <nanowasm/nw.h>
+#include <nw/types.h>
+#include <stddef.h>
+#include <stdio.h>
+
+static int op(struct nw_interp *const i, FILE *const f)
+{
+    varint64 value;
+
+    if (varint64_read(f, &value))
+    {
+        LOG("%s: varint32_read failed\n", __func__);
+        return -1;
+    }
+
+    return 0;
+}
+
+int op_i64_const(struct nw_interp *const i)
+{
+    return op(i, i->f);
+}
+
+int check_i64_const(FILE *const f)
+{
+    return op(NULL, f);
+}