This patch includes:
- VSAT.{B/H/W/D}[U].
Signed-off-by: Song Gao <gaos...@loongson.cn>
---
target/loongarch/disas.c | 9 ++
target/loongarch/helper.h | 9 ++
target/loongarch/insn_trans/trans_lsx.c.inc | 105 ++++++++++++++++++++
target/loongarch/insns.decode | 12 +++
target/loongarch/lsx_helper.c | 73 ++++++++++++++
5 files changed, 208 insertions(+)
diff --git a/target/loongarch/disas.c b/target/loongarch/disas.c
index 6e4f676a42..b04aefe3ed 100644
--- a/target/loongarch/disas.c
+++ b/target/loongarch/disas.c
@@ -1061,3 +1061,12 @@ INSN_LSX(vmod_bu, vvv)
INSN_LSX(vmod_hu, vvv)
INSN_LSX(vmod_wu, vvv)
INSN_LSX(vmod_du, vvv)
+
+INSN_LSX(vsat_b, vv_i)
+INSN_LSX(vsat_h, vv_i)
+INSN_LSX(vsat_w, vv_i)
+INSN_LSX(vsat_d, vv_i)
+INSN_LSX(vsat_bu, vv_i)
+INSN_LSX(vsat_hu, vv_i)
+INSN_LSX(vsat_wu, vv_i)
+INSN_LSX(vsat_du, vv_i)
diff --git a/target/loongarch/helper.h b/target/loongarch/helper.h
index e46f12cb65..6345b7ef9c 100644
--- a/target/loongarch/helper.h
+++ b/target/loongarch/helper.h
@@ -335,3 +335,12 @@ DEF_HELPER_4(vmod_bu, void, env, i32, i32, i32)
DEF_HELPER_4(vmod_hu, void, env, i32, i32, i32)
DEF_HELPER_4(vmod_wu, void, env, i32, i32, i32)
DEF_HELPER_4(vmod_du, void, env, i32, i32, i32)
+
+DEF_HELPER_FLAGS_4(vsat_b, TCG_CALL_NO_RWG, void, ptr, ptr, i64, i32)
+DEF_HELPER_FLAGS_4(vsat_h, TCG_CALL_NO_RWG, void, ptr, ptr, i64, i32)
+DEF_HELPER_FLAGS_4(vsat_w, TCG_CALL_NO_RWG, void, ptr, ptr, i64, i32)
+DEF_HELPER_FLAGS_4(vsat_d, TCG_CALL_NO_RWG, void, ptr, ptr, i64, i32)
+DEF_HELPER_FLAGS_4(vsat_bu, TCG_CALL_NO_RWG, void, ptr, ptr, i64, i32)
+DEF_HELPER_FLAGS_4(vsat_hu, TCG_CALL_NO_RWG, void, ptr, ptr, i64, i32)
+DEF_HELPER_FLAGS_4(vsat_wu, TCG_CALL_NO_RWG, void, ptr, ptr, i64, i32)
+DEF_HELPER_FLAGS_4(vsat_du, TCG_CALL_NO_RWG, void, ptr, ptr, i64, i32)
diff --git a/target/loongarch/insn_trans/trans_lsx.c.inc
b/target/loongarch/insn_trans/trans_lsx.c.inc
index 46a18da6dd..7dfb3b33f6 100644
--- a/target/loongarch/insn_trans/trans_lsx.c.inc
+++ b/target/loongarch/insn_trans/trans_lsx.c.inc
@@ -2382,3 +2382,108 @@ TRANS(vmod_bu, gen_vvv, gen_helper_vmod_bu)
TRANS(vmod_hu, gen_vvv, gen_helper_vmod_hu)
TRANS(vmod_wu, gen_vvv, gen_helper_vmod_wu)
TRANS(vmod_du, gen_vvv, gen_helper_vmod_du)
+
+static void gen_vsat_s(unsigned vece, TCGv_vec t, TCGv_vec a, int64_t imm)
+{
+ TCGv_vec t1;
+ int64_t max = (1l << imm) - 1;
+ int64_t min = ~max;
+
+ t1 = tcg_temp_new_vec_matching(t);
+ tcg_gen_dupi_vec(vece, t, min);
+ tcg_gen_smax_vec(vece, t, a, t);
+ tcg_gen_dupi_vec(vece, t1, max);
+ tcg_gen_smin_vec(vece, t, t, t1);
+}
+
+static void do_vsat_s(unsigned vece, uint32_t vd_ofs, uint32_t vj_ofs,
+ int64_t imm, uint32_t oprsz, uint32_t maxsz)
+{
+ static const TCGOpcode vecop_list[] = {
+ INDEX_op_smax_vec, INDEX_op_smin_vec, 0
+ };
+ static const GVecGen2i op[4] = {
+ {
+ .fniv = gen_vsat_s,
+ .fnoi = gen_helper_vsat_b,
+ .opt_opc = vecop_list,
+ .vece = MO_8
+ },
+ {
+ .fniv = gen_vsat_s,
+ .fnoi = gen_helper_vsat_h,
+ .opt_opc = vecop_list,
+ .vece = MO_16
+ },
+ {
+ .fniv = gen_vsat_s,
+ .fnoi = gen_helper_vsat_w,
+ .opt_opc = vecop_list,
+ .vece = MO_32
+ },
+ {
+ .fniv = gen_vsat_s,
+ .fnoi = gen_helper_vsat_d,
+ .opt_opc = vecop_list,
+ .vece = MO_64
+ },
+ };
+
+ tcg_gen_gvec_2i(vd_ofs, vj_ofs, oprsz, maxsz, imm, &op[vece]);
+}
+
+TRANS(vsat_b, gvec_vv_i, MO_8, do_vsat_s)
+TRANS(vsat_h, gvec_vv_i, MO_16, do_vsat_s)
+TRANS(vsat_w, gvec_vv_i, MO_32, do_vsat_s)
+TRANS(vsat_d, gvec_vv_i, MO_64, do_vsat_s)
+
+static void gen_vsat_u(unsigned vece, TCGv_vec t, TCGv_vec a, int64_t imm)
+{
+ uint64_t max;
+
+ max = (imm == 0x3f) ? UINT64_MAX : (1ul << (imm + 1)) - 1;
+
+ tcg_gen_dupi_vec(vece, t, max);
+ tcg_gen_umin_vec(vece, t, a, t);
+}
+
+static void do_vsat_u(unsigned vece, uint32_t vd_ofs, uint32_t vj_ofs,
+ int64_t imm, uint32_t oprsz, uint32_t maxsz)
+{
+ static const TCGOpcode vecop_list[] = {
+ INDEX_op_umin_vec, 0
+ };
+ static const GVecGen2i op[4] = {
+ {
+ .fniv = gen_vsat_u,
+ .fnoi = gen_helper_vsat_bu,
+ .opt_opc = vecop_list,
+ .vece = MO_8
+ },
+ {
+ .fniv = gen_vsat_u,
+ .fnoi = gen_helper_vsat_hu,
+ .opt_opc = vecop_list,
+ .vece = MO_16
+ },
+ {
+ .fniv = gen_vsat_u,
+ .fnoi = gen_helper_vsat_wu,
+ .opt_opc = vecop_list,
+ .vece = MO_32
+ },
+ {
+ .fniv = gen_vsat_u,
+ .fnoi = gen_helper_vsat_du,
+ .opt_opc = vecop_list,
+ .vece = MO_64
+ },
+ };
+
+ tcg_gen_gvec_2i(vd_ofs, vj_ofs, oprsz, maxsz, imm, &op[vece]);
+}
+
+TRANS(vsat_bu, gvec_vv_i, MO_8, do_vsat_u)
+TRANS(vsat_hu, gvec_vv_i, MO_16, do_vsat_u)
+TRANS(vsat_wu, gvec_vv_i, MO_32, do_vsat_u)
+TRANS(vsat_du, gvec_vv_i, MO_64, do_vsat_u)
diff --git a/target/loongarch/insns.decode b/target/loongarch/insns.decode
index 67d016edb7..3ed61b3d68 100644
--- a/target/loongarch/insns.decode
+++ b/target/loongarch/insns.decode
@@ -499,7 +499,10 @@ dbcl 0000 00000010 10101 ...............
@i15
#
@vv .... ........ ..... ..... vj:5 vd:5 &vv
@vvv .... ........ ..... vk:5 vj:5 vd:5 &vvv
+@vv_ui3 .... ........ ..... .. imm:3 vj:5 vd:5 &vv_i
+@vv_ui4 .... ........ ..... . imm:4 vj:5 vd:5 &vv_i
@vv_ui5 .... ........ ..... imm:5 vj:5 vd:5 &vv_i
+@vv_ui6 .... ........ .... imm:6 vj:5 vd:5 &vv_i
@vv_i5 .... ........ ..... imm:s5 vj:5 vd:5 &vv_i
vadd_b 0111 00000000 10100 ..... ..... ..... @vvv
@@ -757,3 +760,12 @@ vmod_bu 0111 00001110 01100 ..... ..... .....
@vvv
vmod_hu 0111 00001110 01101 ..... ..... ..... @vvv
vmod_wu 0111 00001110 01110 ..... ..... ..... @vvv
vmod_du 0111 00001110 01111 ..... ..... ..... @vvv
+
+vsat_b 0111 00110010 01000 01 ... ..... ..... @vv_ui3
+vsat_h 0111 00110010 01000 1 .... ..... ..... @vv_ui4
+vsat_w 0111 00110010 01001 ..... ..... ..... @vv_ui5
+vsat_d 0111 00110010 0101 ...... ..... ..... @vv_ui6
+vsat_bu 0111 00110010 10000 01 ... ..... ..... @vv_ui3
+vsat_hu 0111 00110010 10000 1 .... ..... ..... @vv_ui4
+vsat_wu 0111 00110010 10001 ..... ..... ..... @vv_ui5
+vsat_du 0111 00110010 1001 ...... ..... ..... @vv_ui6
diff --git a/target/loongarch/lsx_helper.c b/target/loongarch/lsx_helper.c
index 03a837fa74..15efc64e4e 100644
--- a/target/loongarch/lsx_helper.c
+++ b/target/loongarch/lsx_helper.c
@@ -763,3 +763,76 @@ DO_3OP(vmod_bu, 8, uint8_t, B, DO_REMU)
DO_3OP(vmod_hu, 16, uint16_t, H, DO_REMU)
DO_3OP(vmod_wu, 32, uint32_t, W, DO_REMU)
DO_3OP(vmod_du, 64, uint64_t, D, DO_REMU)
+
+#define do_vsats(E, T) \
+static T do_vsats_ ## E(T s1, uint64_t imm) \
+{ \
+ T mask,top; \
+ \
+ mask = (1l << imm) - 1; \
+ top = s1 >> imm; \
+ if (top > 0) { \
+ return mask; \
+ } else if (top < -1) { \
+ return ~mask; \
+ } else { \
+ return s1; \
+ } \
+}
+
+do_vsats(B, int8_t)
+do_vsats(H, int16_t)
+do_vsats(W, int32_t)
+do_vsats(D, int64_t)
+
+#define VSAT_S(NAME, BIT, E) \
+void HELPER(NAME)(void *vd, void *vj, uint64_t imm, uint32_t v) \
+{ \
+ int i; \
+ VReg *Vd = (VReg *)vd; \
+ VReg *Vj = (VReg *)vj; \
+ \
+ for (i = 0; i < LSX_LEN/BIT; i++) { \
+ Vd->E(i) = do_vsats_ ## E(Vj->E(i), imm); \
+ } \
+}
+
+VSAT_S(vsat_b, 8, B)
+VSAT_S(vsat_h, 16, H)
+VSAT_S(vsat_w, 32, W)
+VSAT_S(vsat_d, 64, D)
+
+#define do_vsatu(E, T) \
+static T do_vsatu_ ## E(T s1, uint64_t imm) \
+{ \
+ uint64_t max; \
+ \
+ max = (imm == 0x3f) ? UINT64_MAX : (1ul << (imm + 1)) - 1; \
+ if (s1 >(T)max) { \
+ return (T)max; \
+ } else { \
+ return s1; \
+ } \
+}
+
+do_vsatu(B, uint8_t)
+do_vsatu(H, uint16_t)
+do_vsatu(W, uint32_t)
+do_vsatu(D, uint64_t)
+
+#define VSAT_U(NAME, BIT, T, E) \
+void HELPER(NAME)(void *vd, void *vj, uint64_t imm, uint32_t v) \
+{ \
+ int i; \
+ VReg *Vd = (VReg *)vd; \
+ VReg *Vj = (VReg *)vj; \
+ \
+ for (i = 0; i < LSX_LEN/BIT; i++) { \
+ Vd->E(i) = do_vsatu_ ## E((T)Vj->E(i), imm); \
+ } \
+}
+
+VSAT_U(vsat_bu, 8, uint8_t, B)
+VSAT_U(vsat_hu, 16, uint16_t, H)
+VSAT_U(vsat_wu, 32, uint32_t, W)
+VSAT_U(vsat_du, 64, uint64_t, D)
--
2.31.1
