diff --git a/internal/xor/xor_amd64.go b/internal/xor/xor_amd64.go
index a1c34ca..9ece77b 100644
--- a/internal/xor/xor_amd64.go
+++ b/internal/xor/xor_amd64.go
@@ -1,6 +1,8 @@
 // Copyright 2018 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
+//go:build amd64 && !generic
+// +build amd64,!generic
 
 package xor
 
diff --git a/internal/xor/xor_arm64.go b/internal/xor/xor_arm64.go
index d8ba70d..7453273 100644
--- a/internal/xor/xor_arm64.go
+++ b/internal/xor/xor_arm64.go
@@ -1,6 +1,8 @@
 // Copyright 2018 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
+//go:build arm64 && !generic
+// +build arm64,!generic
 
 package xor
 
diff --git a/internal/xor/xor_generic.go b/internal/xor/xor_generic.go
index 722ad16..20395e6 100644
--- a/internal/xor/xor_generic.go
+++ b/internal/xor/xor_generic.go
@@ -1,8 +1,8 @@
 // Copyright 2013 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
-//go:build !amd64 && !arm64
-// +build !amd64,!arm64
+//go:build !amd64 && !arm64 || generic
+// +build !amd64,!arm64 generic
 
 package xor
 
diff --git a/sm2/fuzz_test.go b/sm2/fuzz_test.go
index 9dd5904..b4eaa2a 100644
--- a/sm2/fuzz_test.go
+++ b/sm2/fuzz_test.go
@@ -1,6 +1,3 @@
-//go:build amd64 || arm64 || ppc64le
-// +build amd64 arm64 ppc64le
-
 package sm2
 
 import (
diff --git a/sm2/gen_p256_table.go b/sm2/gen_p256_table.go
index 44476e9..111701f 100644
--- a/sm2/gen_p256_table.go
+++ b/sm2/gen_p256_table.go
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-//go:build amd64
-// +build amd64
+//go:build (amd64 && !generic) || (arm64 && !generic)
+// +build amd64,!generic arm64,!generic
 
 package sm2
 
@@ -18,8 +18,8 @@ func GenTables() {
 	buf := new(bytes.Buffer)
 	fmt.Fprint(buf, `
 // Generated by gen_p256_table.go. DO NOT EDIT.
-//go:build amd64
-// +build amd64
+//go:build (amd64 && !generic) || (arm64 && !generic)
+// +build amd64,!generic arm64,!generic
 
 package sm2
 `[1:])
diff --git a/sm2/p256.go b/sm2/p256.go
index 5c07017..3035247 100644
--- a/sm2/p256.go
+++ b/sm2/p256.go
@@ -1,5 +1,5 @@
-//go:build !amd64 && !arm64
-// +build !amd64,!arm64
+//go:build !amd64 && !arm64 || generic
+// +build !amd64,!arm64 generic
 
 package sm2
 
diff --git a/sm2/p256_asm.go b/sm2/p256_asm.go
index 4814dba..3026780 100644
--- a/sm2/p256_asm.go
+++ b/sm2/p256_asm.go
@@ -7,8 +7,8 @@
 //                          256-bit primes"
 // https://link.springer.com/article/10.1007%2Fs13389-014-0090-x
 // https://eprint.iacr.org/2013/816.pdf
-//go:build amd64 || arm64
-// +build amd64 arm64
+//go:build (amd64 && !generic) || (arm64 && !generic)
+// +build amd64,!generic arm64,!generic
 
 package sm2
 
diff --git a/sm2/p256_asm_table.go b/sm2/p256_asm_table.go
index 6016323..98ff4c0 100644
--- a/sm2/p256_asm_table.go
+++ b/sm2/p256_asm_table.go
@@ -1,6 +1,6 @@
 // Generated by gen_p256_table.go. DO NOT EDIT.
-//go:build amd64 || arm64
-// +build amd64 arm64
+//go:build (amd64 && !generic) || (arm64 && !generic)
+// +build amd64,!generic arm64,!generic
 
 package sm2
 
diff --git a/sm2/p256_asm_table_test.go b/sm2/p256_asm_table_test.go
index c5a5b3e..62e267b 100644
--- a/sm2/p256_asm_table_test.go
+++ b/sm2/p256_asm_table_test.go
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-//go:build amd64 || arm64
-// +build amd64 arm64
+//go:build (amd64 && !generic) || (arm64 && !generic)
+// +build amd64,!generic arm64,!generic
 
 package sm2
 
diff --git a/sm2/p256_asm_test.go b/sm2/p256_asm_test.go
index 0afdc59..5cac3cd 100644
--- a/sm2/p256_asm_test.go
+++ b/sm2/p256_asm_test.go
@@ -1,5 +1,5 @@
-//go:build amd64 || arm64
-// +build amd64 arm64
+//go:build (amd64 && !generic) || (arm64 && !generic)
+// +build amd64,!generic arm64,!generic
 
 package sm2
 
diff --git a/sm2/p256_generic.go b/sm2/p256_generic.go
index 980972c..711b768 100644
--- a/sm2/p256_generic.go
+++ b/sm2/p256_generic.go
@@ -1,5 +1,5 @@
-//go:build !amd64 && !arm64
-// +build !amd64,!arm64
+//go:build !amd64 && !arm64 || generic
+// +build !amd64,!arm64 generic
 
 package sm2
 
diff --git a/sm3/sm3block_amd64.go b/sm3/sm3block_amd64.go
index c45430d..2c2f011 100644
--- a/sm3/sm3block_amd64.go
+++ b/sm3/sm3block_amd64.go
@@ -1,5 +1,5 @@
-//go:build amd64
-// +build amd64
+//go:build amd64 && !generic
+// +build amd64,!generic
 
 package sm3
 
diff --git a/sm3/sm3block_arm64.go b/sm3/sm3block_arm64.go
index 2bb89b9..8cfb110 100644
--- a/sm3/sm3block_arm64.go
+++ b/sm3/sm3block_arm64.go
@@ -1,5 +1,5 @@
-//go:build arm64
-// +build arm64
+//go:build arm64 && !generic
+// +build arm64,!generic
 
 package sm3
 
diff --git a/sm3/sm3block_generic.go b/sm3/sm3block_generic.go
index 81a0208..d1ce68e 100644
--- a/sm3/sm3block_generic.go
+++ b/sm3/sm3block_generic.go
@@ -1,5 +1,5 @@
-//go:build !amd64 && !arm64
-// +build !amd64,!arm64
+//go:build !amd64 && !arm64 || generic
+// +build !amd64,!arm64 generic
 
 package sm3
 
diff --git a/sm4/cbc_cipher_asm.go b/sm4/cbc_cipher_asm.go
index d396e77..0899deb 100644
--- a/sm4/cbc_cipher_asm.go
+++ b/sm4/cbc_cipher_asm.go
@@ -1,5 +1,5 @@
-//go:build amd64 || arm64
-// +build amd64 arm64
+//go:build (amd64 && !generic) || (arm64 && !generic)
+// +build amd64,!generic arm64,!generic
 
 package sm4
 
diff --git a/sm4/cipher_asm.go b/sm4/cipher_asm.go
index b05775a..1eadf21 100644
--- a/sm4/cipher_asm.go
+++ b/sm4/cipher_asm.go
@@ -1,5 +1,5 @@
-//go:build amd64 || arm64
-// +build amd64 arm64
+//go:build (amd64 && !generic) || (arm64 && !generic)
+// +build amd64,!generic arm64,!generic
 
 package sm4
 
diff --git a/sm4/cipher_asm_fuzzy_test.go b/sm4/cipher_asm_fuzzy_test.go
index b3894cd..5f88db1 100644
--- a/sm4/cipher_asm_fuzzy_test.go
+++ b/sm4/cipher_asm_fuzzy_test.go
@@ -1,5 +1,5 @@
-//go:build amd64 || arm64
-// +build amd64 arm64
+//go:build (amd64 && !generic) || (arm64 && !generic)
+// +build amd64,!generic arm64,!generic
 
 package sm4
 
diff --git a/sm4/cipher_generic.go b/sm4/cipher_generic.go
index ae56597..995b877 100644
--- a/sm4/cipher_generic.go
+++ b/sm4/cipher_generic.go
@@ -1,5 +1,5 @@
-//go:build !amd64 && !arm64
-// +build !amd64,!arm64
+//go:build !amd64 && !arm64 || generic
+// +build !amd64,!arm64 generic
 
 package sm4
 
diff --git a/sm4/ctr_cipher_asm.go b/sm4/ctr_cipher_asm.go
index 87ce060..7630eb1 100644
--- a/sm4/ctr_cipher_asm.go
+++ b/sm4/ctr_cipher_asm.go
@@ -1,5 +1,5 @@
-//go:build amd64 || arm64
-// +build amd64 arm64
+//go:build (amd64 && !generic) || (arm64 && !generic)
+// +build amd64,!generic arm64,!generic
 
 package sm4
 
diff --git a/sm4/gcm_cipher_asm.go b/sm4/gcm_cipher_asm.go
index 5705cf1..168a78f 100644
--- a/sm4/gcm_cipher_asm.go
+++ b/sm4/gcm_cipher_asm.go
@@ -1,5 +1,5 @@
-//go:build amd64 || arm64
-// +build amd64 arm64
+//go:build (amd64 && !generic) || (arm64 && !generic)
+// +build amd64,!generic arm64,!generic
 
 package sm4
 
diff --git a/sm4/sm4_gcm_asm.go b/sm4/sm4_gcm_asm.go
index 74c5481..5510e62 100644
--- a/sm4/sm4_gcm_asm.go
+++ b/sm4/sm4_gcm_asm.go
@@ -1,5 +1,5 @@
-//go:build amd64 || arm64
-// +build amd64 arm64
+//go:build (amd64 && !generic) || (arm64 && !generic)
+// +build amd64,!generic arm64,!generic
 
 package sm4
 
diff --git a/sm4/sm4_gcm_test.go b/sm4/sm4_gcm_test.go
index 36e30bc..f2eb4d5 100644
--- a/sm4/sm4_gcm_test.go
+++ b/sm4/sm4_gcm_test.go
@@ -1,5 +1,5 @@
-//go:build amd64 || arm64
-// +build amd64 arm64
+//go:build (amd64 && !generic) || (arm64 && !generic)
+// +build amd64,!generic arm64,!generic
 
 package sm4
 
diff --git a/sm4/sm4ni_gcm_asm.go b/sm4/sm4ni_gcm_asm.go
index 7832378..3b40f3d 100644
--- a/sm4/sm4ni_gcm_asm.go
+++ b/sm4/sm4ni_gcm_asm.go
@@ -1,5 +1,5 @@
-//go:build amd64 || arm64
-// +build amd64 arm64
+//go:build (amd64 && !generic) || (arm64 && !generic)
+// +build amd64,!generic arm64,!generic
 
 package sm4