Add i32.shr_{s,u}

5 files changed, 52 insertions, 2 deletions

diff --git a/private_include/nw/ops.h b/private_include/nw/ops.h
index d4134d8..9287cfa 100644
--- a/private_include/nw/ops.h
+++ b/private_include/nw/ops.h
@@ -62,6 +62,8 @@ void nwp_op_i32_le_u(struct nw_interp *i);
 void nwp_op_i32_ge_s(struct nw_interp *i);
 void nwp_op_i32_ge_u(struct nw_interp *i);
 void nwp_op_i32_shl(struct nw_interp *i);
+void nwp_op_i32_shr_s(struct nw_interp *i);
+void nwp_op_i32_shr_u(struct nw_interp *i);
 
 void nwp_op_check_no_immediate(struct nw_mod *m);
 void nwp_op_check_block(struct nw_mod *m);
diff --git a/src/interp/ops.c b/src/interp/ops.c
index 7fc5848..9f80668 100644
--- a/src/interp/ops.c
+++ b/src/interp/ops.c
@@ -131,8 +131,8 @@ static void (*const ops[])(struct nw_interp *) =
     nwp_op_i32_or, /* OP_I32_OR */
     NULL, /* OP_I32_XOR */
     nwp_op_i32_shl, /* OP_I32_SHL */
-    NULL, /* OP_I32_SHR_S */
-    NULL, /* OP_I32_SHR_U */
+    nwp_op_i32_shr_s, /* OP_I32_SHR_S */
+    nwp_op_i32_shr_u, /* OP_I32_SHR_U */
     NULL, /* OP_I32_ROTL */
     NULL, /* OP_I32_ROTR */
     NULL, /* OP_I64_CLZ */
diff --git a/src/op/CMakeLists.txt b/src/op/CMakeLists.txt
index 3e1c7f2..7468132 100644
--- a/src/op/CMakeLists.txt
+++ b/src/op/CMakeLists.txt
@@ -37,6 +37,8 @@ target_sources(${PROJECT_NAME} PRIVATE
     i32_ne.c
     i32_or.c
     i32_shl.c
+    i32_shr_s.c
+    i32_shr_u.c
     i32_store.c
     i32_store8.c
     i32_sub.c
diff --git a/src/op/i32_shr_s.c b/src/op/i32_shr_s.c
new file mode 100644
index 0000000..991b434
--- /dev/null
+++ b/src/op/i32_shr_s.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 shr_s(const struct nw_i_sm_arithm_out *const o,
+    union nw_value *const res)
+{
+    res->i32 = o->left.i32 >> o->right.i32;
+    return 0;
+}
+
+void nwp_op_i32_shr_s(struct nw_interp *const i)
+{
+    nwp_arithm(i, NW_TYPE_I32, shr_s);
+}
diff --git a/src/op/i32_shr_u.c b/src/op/i32_shr_u.c
new file mode 100644
index 0000000..72cc2a7
--- /dev/null
+++ b/src/op/i32_shr_u.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 shr_u(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_shr_u(struct nw_interp *const i)
+{
+    nwp_arithm(i, NW_TYPE_I32, shr_u);
+}