diff --git a/target/mips/tcg/octeon.decode b/target/mips/tcg/octeon.decode
index b1a63b743f..2b27fa205f 100644
--- a/target/mips/tcg/octeon.decode
+++ b/target/mips/tcg/octeon.decode
@@ -265,8 +265,12 @@ LDX          011111 ..... ..... ..... 01000 001010 @lx
     CVM_MT_CRC_DWORD_REFLECT             010010 00101 rt:5 0001 0010 0001 0111 &cp2
     CVM_MT_CRC_VAR_REFLECT               010010 00101 rt:5 0001 0010 0001 1000 &cp2
     CVM_MT_HSH_STARTMD5                  010010 00101 rt:5 0100 0000 0100 0111 &cp2
+    CVM_MT_SNOW3G_START                  010010 00101 rt:5 0100 0000 0100 1101 &cp2
+    CVM_MT_SNOW3G_MORE                   010010 00101 rt:5 0100 0000 0100 1110 &cp2
     CVM_MT_HSH_STARTSHA256               010010 00101 rt:5 0100 0000 0100 1111 &cp2
     CVM_MT_SHA3_STARTOP                  010010 00101 rt:5 0100 0000 0101 0010 &cp2
+    CVM_MT_ZUC_START                     010010 00101 rt:5 0100 0000 0101 0101 &cp2
+    CVM_MT_ZUC_MORE                      010010 00101 rt:5 0100 0000 0101 0110 &cp2
     CVM_MT_HSH_STARTSHA                  010010 00101 rt:5 0100 0000 0101 0111 &cp2
     CVM_MT_GFM_XORMUL1_REFLECT           010010 00101 rt:5 0100 0000 0101 1101 &cp2
     CVM_MT_CRC_POLYNOMIAL                010010 00101 rt:5 0100 0010 0000 0000 &cp2
diff --git a/target/mips/tcg/octeon_translate.c b/target/mips/tcg/octeon_translate.c
index 5497e5a6ce..b4663b35a3 100644
--- a/target/mips/tcg/octeon_translate.c
+++ b/target/mips/tcg/octeon_translate.c
@@ -345,6 +345,10 @@ CP2_MT_XOR_I64(CVM_MT_SHA3_XORDAT15, sha3_dat[15]);
 CP2_MT_XOR_I64(CVM_MT_SHA3_XORDAT16, sha3_dat[16]);
 CP2_MT_XOR_I64(CVM_MT_SHA3_XORDAT17, sha3_dat[17]);
 CP2_MT_HELPER_ENV(CVM_MT_SHA3_STARTOP, sha3_startop);
+CP2_MT_HELPER(CVM_MT_ZUC_START, zuc_start);
+CP2_MT_HELPER(CVM_MT_ZUC_MORE, zuc_more);
+CP2_MT_HELPER(CVM_MT_SNOW3G_START, snow3g_start);
+CP2_MT_HELPER(CVM_MT_SNOW3G_MORE, snow3g_more);
 CP2_MT_HELPER(CVM_MT_HSH_STARTSHA1_COMPAT, hsh_startsha1_compat);
 CP2_MT_I64(CVM_MT_HSH_DATW0, hsh_dat[0]);
 CP2_MT_I64(CVM_MT_HSH_DATW1, hsh_dat[1]);