diff --git a/target/loongarch/insns.decode b/target/loongarch/insns.decode
index edaa756395..fb28666577 100644
--- a/target/loongarch/insns.decode
+++ b/target/loongarch/insns.decode
@@ -1607,6 +1607,18 @@ xvmsknz_b        0111 01101001 11000 11000 ..... .....    @vv
 
 xvldi            0111 01111110 00 ............. .....     @v_i13
 
+xvand_v          0111 01010010 01100 ..... ..... .....    @vvv
+xvor_v           0111 01010010 01101 ..... ..... .....    @vvv
+xvxor_v          0111 01010010 01110 ..... ..... .....    @vvv
+xvnor_v          0111 01010010 01111 ..... ..... .....    @vvv
+xvandn_v         0111 01010010 10000 ..... ..... .....    @vvv
+xvorn_v          0111 01010010 10001 ..... ..... .....    @vvv
+
+xvandi_b         0111 01111101 00 ........ ..... .....    @vv_ui8
+xvori_b          0111 01111101 01 ........ ..... .....    @vv_ui8
+xvxori_b         0111 01111101 10 ........ ..... .....    @vv_ui8
+xvnori_b         0111 01111101 11 ........ ..... .....    @vv_ui8
+
 xvreplgr2vr_b    0111 01101001 11110 00000 ..... .....    @vr
 xvreplgr2vr_h    0111 01101001 11110 00001 ..... .....    @vr
 xvreplgr2vr_w    0111 01101001 11110 00010 ..... .....    @vr
diff --git a/target/loongarch/disas.c b/target/loongarch/disas.c
index 8fa2edf007..59fa249bae 100644
--- a/target/loongarch/disas.c
+++ b/target/loongarch/disas.c
@@ -2029,6 +2029,18 @@ INSN_LASX(xvsigncov_d,       vvv)
 
 INSN_LASX(xvldi,             v_i)
 
+INSN_LASX(xvand_v,           vvv)
+INSN_LASX(xvor_v,            vvv)
+INSN_LASX(xvxor_v,           vvv)
+INSN_LASX(xvnor_v,           vvv)
+INSN_LASX(xvandn_v,          vvv)
+INSN_LASX(xvorn_v,           vvv)
+
+INSN_LASX(xvandi_b,          vv_i)
+INSN_LASX(xvori_b,           vv_i)
+INSN_LASX(xvxori_b,          vv_i)
+INSN_LASX(xvnori_b,          vv_i)
+
 INSN_LASX(xvreplgr2vr_b,     vr)
 INSN_LASX(xvreplgr2vr_h,     vr)
 INSN_LASX(xvreplgr2vr_w,     vr)
diff --git a/target/loongarch/vec_helper.c b/target/loongarch/vec_helper.c
index 47837875a8..e33969339f 100644
--- a/target/loongarch/vec_helper.c
+++ b/target/loongarch/vec_helper.c
@@ -914,13 +914,13 @@ void HELPER(vmsknz_b)(void *vd, void *vj, uint32_t desc)
     }
 }
 
-void HELPER(vnori_b)(void *vd, void *vj, uint64_t imm, uint32_t v)
+void HELPER(vnori_b)(void *vd, void *vj, uint64_t imm, uint32_t desc)
 {
     int i;
     VReg *Vd = (VReg *)vd;
     VReg *Vj = (VReg *)vj;
 
-    for (i = 0; i < LSX_LEN/8; i++) {
+    for (i = 0; i < simd_oprsz(desc); i++) {
         Vd->B(i) = ~(Vj->B(i) | (uint8_t)imm);
     }
 }
diff --git a/target/loongarch/insn_trans/trans_lasx.c.inc b/target/loongarch/insn_trans/trans_lasx.c.inc
index f0e71f5f98..9a3a504538 100644
--- a/target/loongarch/insn_trans/trans_lasx.c.inc
+++ b/target/loongarch/insn_trans/trans_lasx.c.inc
@@ -353,6 +353,17 @@ TRANS(xvmsknz_b, LASX, gen_vv, 32, gen_helper_vmsknz_b)
 
 TRANS(xvldi, LASX, do_vldi, 32)
 
+TRANS(xvand_v, LASX, gvec_vvv, 32, MO_64, tcg_gen_gvec_and)
+TRANS(xvor_v, LASX, gvec_vvv, 32, MO_64, tcg_gen_gvec_or)
+TRANS(xvxor_v, LASX, gvec_vvv, 32, MO_64, tcg_gen_gvec_xor)
+TRANS(xvnor_v, LASX, gvec_vvv, 32, MO_64, tcg_gen_gvec_nor)
+TRANS(xvandn_v, LASX, do_vandn_v, 32)
+TRANS(xvorn_v, LASX, gvec_vvv, 32, MO_64, tcg_gen_gvec_orc)
+TRANS(xvandi_b, LASX, gvec_vv_i, 32, MO_8, tcg_gen_gvec_andi)
+TRANS(xvori_b, LASX, gvec_vv_i, 32, MO_8, tcg_gen_gvec_ori)
+TRANS(xvxori_b, LASX, gvec_vv_i, 32, MO_8, tcg_gen_gvec_xori)
+TRANS(xvnori_b, LASX, gvec_vv_i, 32, MO_8, do_vnori_b)
+
 TRANS(xvreplgr2vr_b, LASX, gvec_dup, 32, MO_8)
 TRANS(xvreplgr2vr_h, LASX, gvec_dup, 32, MO_16)
 TRANS(xvreplgr2vr_w, LASX, gvec_dup, 32, MO_32)
diff --git a/target/loongarch/insn_trans/trans_lsx.c.inc b/target/loongarch/insn_trans/trans_lsx.c.inc
index f76da508c3..64de014a58 100644
--- a/target/loongarch/insn_trans/trans_lsx.c.inc
+++ b/target/loongarch/insn_trans/trans_lsx.c.inc
@@ -3101,7 +3101,7 @@ TRANS(vor_v, LSX, gvec_vvv, 16, MO_64, tcg_gen_gvec_or)
 TRANS(vxor_v, LSX, gvec_vvv, 16, MO_64, tcg_gen_gvec_xor)
 TRANS(vnor_v, LSX, gvec_vvv, 16, MO_64, tcg_gen_gvec_nor)
 
-static bool trans_vandn_v(DisasContext *ctx, arg_vvv *a)
+static bool do_vandn_v(DisasContext *ctx, arg_vvv *a, uint32_t oprsz)
 {
     uint32_t vd_ofs, vj_ofs, vk_ofs;
 
@@ -3115,9 +3115,10 @@ static bool trans_vandn_v(DisasContext *ctx, arg_vvv *a)
     vj_ofs = vec_full_offset(a->vj);
     vk_ofs = vec_full_offset(a->vk);
 
-    tcg_gen_gvec_andc(MO_64, vd_ofs, vk_ofs, vj_ofs, 16, ctx->vl/8);
+    tcg_gen_gvec_andc(MO_64, vd_ofs, vk_ofs, vj_ofs, oprsz, ctx->vl / 8);
     return true;
 }
+TRANS(vandn_v, LSX, do_vandn_v, 16)
 TRANS(vorn_v, LSX, gvec_vvv, 16, MO_64, tcg_gen_gvec_orc)
 TRANS(vandi_b, LSX, gvec_vv_i, 16, MO_8, tcg_gen_gvec_andi)
 TRANS(vori_b, LSX, gvec_vv_i, 16, MO_8, tcg_gen_gvec_ori)
