[RFC PATCH 08/39] target/riscv: Add vrev8.v decoding, translation and execution support

[Lawrence Hunter]

From: Nazar Kazakov <nazar.kazakov@codethink.co.uk>

Signed-off-by: Nazar Kazakov <nazar.kazakov@codethink.co.uk>
---
 target/riscv/helper.h                      |  4 ++++
 target/riscv/insn32.decode                 |  1 +
 target/riscv/insn_trans/trans_rvzvkb.c.inc |  1 +
 target/riscv/vcrypto_helper.c              | 10 ++++++++++
 4 files changed, 16 insertions(+)

diff --git a/target/riscv/helper.h b/target/riscv/helper.h
index c94627d8a4..c980d52828 100644
--- a/target/riscv/helper.h
+++ b/target/riscv/helper.h
@@ -1163,6 +1163,10 @@ DEF_HELPER_6(vrol_vx_h, void, ptr, ptr, tl, ptr, env, 
i32)
 DEF_HELPER_6(vrol_vx_w, void, ptr, ptr, tl, ptr, env, i32)
 DEF_HELPER_6(vrol_vx_d, void, ptr, ptr, tl, ptr, env, i32)
 
+DEF_HELPER_5(vrev8_v_b, void, ptr, ptr, ptr, env, i32)
+DEF_HELPER_5(vrev8_v_h, void, ptr, ptr, ptr, env, i32)
+DEF_HELPER_5(vrev8_v_w, void, ptr, ptr, ptr, env, i32)
+DEF_HELPER_5(vrev8_v_d, void, ptr, ptr, ptr, env, i32)
 DEF_HELPER_5(vbrev8_v_b, void, ptr, ptr, ptr, env, i32)
 DEF_HELPER_5(vbrev8_v_h, void, ptr, ptr, ptr, env, i32)
 DEF_HELPER_5(vbrev8_v_w, void, ptr, ptr, ptr, env, i32)
diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode
index 782632a165..342199abc0 100644
--- a/target/riscv/insn32.decode
+++ b/target/riscv/insn32.decode
@@ -903,3 +903,4 @@ vror_vx         010100 . ..... ..... 100 ..... 1010111 @r_vm
 vror_vi         010100 . ..... ..... 011 ..... 1010111 @r_vm
 vror_vi2        010101 . ..... ..... 011 ..... 1010111 @r_vm
 vbrev8_v        010010 . ..... 01000 010 ..... 1010111 @r2_vm
+vrev8_v         010010 . ..... 01001 010 ..... 1010111 @r2_vm
diff --git a/target/riscv/insn_trans/trans_rvzvkb.c.inc 
b/target/riscv/insn_trans/trans_rvzvkb.c.inc
index 50eee7c0a3..b0c8347ab1 100644
--- a/target/riscv/insn_trans/trans_rvzvkb.c.inc
+++ b/target/riscv/insn_trans/trans_rvzvkb.c.inc
@@ -156,3 +156,4 @@ static bool vxrev8_check(DisasContext *s, arg_rmr *a)
 }
 
 GEN_OPIV_TRANS(vbrev8_v, vxrev8_check)
+GEN_OPIV_TRANS(vrev8_v, vxrev8_check)
diff --git a/target/riscv/vcrypto_helper.c b/target/riscv/vcrypto_helper.c
index 303a656141..b09fe5fa2a 100644
--- a/target/riscv/vcrypto_helper.c
+++ b/target/riscv/vcrypto_helper.c
@@ -125,3 +125,13 @@ GEN_VEXT_V(vbrev8_v_b, 1)
 GEN_VEXT_V(vbrev8_v_h, 2)
 GEN_VEXT_V(vbrev8_v_w, 4)
 GEN_VEXT_V(vbrev8_v_d, 8)
+
+#define DO_VREV8_B(a) (a)
+RVVCALL(OPIVV1, vrev8_v_b, OP_UU_B, H1, H1, DO_VREV8_B)
+RVVCALL(OPIVV1, vrev8_v_h, OP_UU_H, H2, H2, bswap16)
+RVVCALL(OPIVV1, vrev8_v_w, OP_UU_W, H4, H4, bswap32)
+RVVCALL(OPIVV1, vrev8_v_d, OP_UU_D, H8, H8, bswap64)
+GEN_VEXT_V(vrev8_v_b, 1)
+GEN_VEXT_V(vrev8_v_h, 2)
+GEN_VEXT_V(vrev8_v_w, 4)
+GEN_VEXT_V(vrev8_v_d, 8)
-- 
2.39.1