From 4e4964c65700636e7411ea2d83b7f25ca4ad1377 Mon Sep 17 00:00:00 2001
From: Xavier Del Campo Romero <xavi92@disroot.org>
Date: Sat, 15 Nov 2025 18:53:32 +0100
Subject: Add i32.xor

---
 private_include/nw/ops.h |  1 +
 src/interp/ops.c         |  2 +-
 src/op/CMakeLists.txt    |  1 +
 src/op/i32_xor.c         | 23 +++++++++++++++++++++++
 4 files changed, 26 insertions(+), 1 deletion(-)
 create mode 100644 src/op/i32_xor.c

diff --git a/private_include/nw/ops.h b/private_include/nw/ops.h
index 0e5fb09..5eceb23 100644
--- a/private_include/nw/ops.h
+++ b/private_include/nw/ops.h
@@ -51,6 +51,7 @@ void nwp_op_i32_sub(struct nw_interp *i);
 void nwp_op_i32_mul(struct nw_interp *i);
 void nwp_op_i32_and(struct nw_interp *i);
 void nwp_op_i32_or(struct nw_interp *i);
+void nwp_op_i32_xor(struct nw_interp *i);
 void nwp_op_i32_eqz(struct nw_interp *i);
 void nwp_op_i32_eq(struct nw_interp *i);
 void nwp_op_i32_ne(struct nw_interp *i);
diff --git a/src/interp/ops.c b/src/interp/ops.c
index 7c0d911..d69140d 100644
--- a/src/interp/ops.c
+++ b/src/interp/ops.c
@@ -129,7 +129,7 @@ static void (*const ops[])(struct nw_interp *) =
     NULL, /* OP_I32_REM_U */
     nwp_op_i32_and, /* OP_I32_AND */
     nwp_op_i32_or, /* OP_I32_OR */
-    NULL, /* OP_I32_XOR */
+    nwp_op_i32_xor, /* OP_I32_XOR */
     nwp_op_i32_shl, /* OP_I32_SHL */
     nwp_op_i32_shr_s, /* OP_I32_SHR_S */
     nwp_op_i32_shr_u, /* OP_I32_SHR_U */
diff --git a/src/op/CMakeLists.txt b/src/op/CMakeLists.txt
index 90ce763..64ff39b 100644
--- a/src/op/CMakeLists.txt
+++ b/src/op/CMakeLists.txt
@@ -43,6 +43,7 @@ target_sources(${PROJECT_NAME} PRIVATE
     i32_store.c
     i32_store8.c
     i32_sub.c
+    i32_xor.c
     i64_const.c
     i64_store.c
     if.c
diff --git a/src/op/i32_xor.c b/src/op/i32_xor.c
new file mode 100644
index 0000000..7360907
--- /dev/null
+++ b/src/op/i32_xor.c
@@ -0,0 +1,23 @@
+/*
+ * 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/routines.h>
+
+static int xor(const struct nw_i_sm_arithm_out *const o,
+    union nw_value *const res)
+{
+    res->i32 = (unsigned long)o->left.i32 ^ (unsigned long)o->right.i32;
+    return 0;
+}
+
+void nwp_op_i32_xor(struct nw_interp *const i)
+{
+    nwp_arithm(i, NW_TYPE_I32, xor);
+}
-- 
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