[RFC PATCH 09/39] target/riscv: Add vandn.[vv, vx, vi] 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                      |  9 +++++++++
 target/riscv/insn32.decode                 |  3 +++
 target/riscv/insn_trans/trans_rvzvkb.c.inc |  5 +++++
 target/riscv/vcrypto_helper.c              | 19 +++++++++++++++++++
 4 files changed, 36 insertions(+)

diff --git a/target/riscv/helper.h b/target/riscv/helper.h
index c980d52828..5de615ea78 100644
--- a/target/riscv/helper.h
+++ b/target/riscv/helper.h
@@ -1171,3 +1171,12 @@ 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)
 DEF_HELPER_5(vbrev8_v_d, void, ptr, ptr, ptr, env, i32)
+
+DEF_HELPER_6(vandn_vv_b, void, ptr, ptr, ptr, ptr, env, i32)
+DEF_HELPER_6(vandn_vv_h, void, ptr, ptr, ptr, ptr, env, i32)
+DEF_HELPER_6(vandn_vv_w, void, ptr, ptr, ptr, ptr, env, i32)
+DEF_HELPER_6(vandn_vv_d, void, ptr, ptr, ptr, ptr, env, i32)
+DEF_HELPER_6(vandn_vx_b, void, ptr, ptr, tl, ptr, env, i32)
+DEF_HELPER_6(vandn_vx_h, void, ptr, ptr, tl, ptr, env, i32)
+DEF_HELPER_6(vandn_vx_w, void, ptr, ptr, tl, ptr, env, i32)
+DEF_HELPER_6(vandn_vx_d, void, ptr, ptr, tl, ptr, env, i32)
diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode
index 342199abc0..d6f5e4d198 100644
--- a/target/riscv/insn32.decode
+++ b/target/riscv/insn32.decode
@@ -904,3 +904,6 @@ 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
+vandn_vi        000001 . ..... ..... 011 ..... 1010111 @r_vm
+vandn_vv        000001 . ..... ..... 000 ..... 1010111 @r_vm
+vandn_vx        000001 . ..... ..... 100 ..... 1010111 @r_vm
diff --git a/target/riscv/insn_trans/trans_rvzvkb.c.inc 
b/target/riscv/insn_trans/trans_rvzvkb.c.inc
index b0c8347ab1..9f75bb3d39 100644
--- a/target/riscv/insn_trans/trans_rvzvkb.c.inc
+++ b/target/riscv/insn_trans/trans_rvzvkb.c.inc
@@ -147,6 +147,11 @@ static bool trans_##NAME(DisasContext *s, arg_rmr * a)     
            \
     return false;                                                      \
 }
 
+
+GEN_OPIVV_TRANS(vandn_vv, zvkb_vv_check)
+GEN_OPIVX_TRANS(vandn_vx, zvkb_vx_check)
+GEN_OPIVI_TRANS(vandn_vi, IMM_SX, vandn_vx, zvkb_vx_check)
+
 static bool vxrev8_check(DisasContext *s, arg_rmr *a)
 {
     return require_rvv(s) &&
diff --git a/target/riscv/vcrypto_helper.c b/target/riscv/vcrypto_helper.c
index b09fe5fa2a..900e68dfb0 100644
--- a/target/riscv/vcrypto_helper.c
+++ b/target/riscv/vcrypto_helper.c
@@ -135,3 +135,22 @@ 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)
+
+#define DO_ANDN(a, b) ((b) & ~(a))
+RVVCALL(OPIVV2, vandn_vv_b, OP_UUU_B, H1, H1, H1, DO_ANDN)
+RVVCALL(OPIVV2, vandn_vv_h, OP_UUU_H, H2, H2, H2, DO_ANDN)
+RVVCALL(OPIVV2, vandn_vv_w, OP_UUU_W, H4, H4, H4, DO_ANDN)
+RVVCALL(OPIVV2, vandn_vv_d, OP_UUU_D, H8, H8, H8, DO_ANDN)
+GEN_VEXT_VV(vandn_vv_b, 1)
+GEN_VEXT_VV(vandn_vv_h, 2)
+GEN_VEXT_VV(vandn_vv_w, 4)
+GEN_VEXT_VV(vandn_vv_d, 8)
+
+RVVCALL(OPIVX2, vandn_vx_b, OP_UUU_B, H1, H1, DO_ANDN)
+RVVCALL(OPIVX2, vandn_vx_h, OP_UUU_H, H2, H2, DO_ANDN)
+RVVCALL(OPIVX2, vandn_vx_w, OP_UUU_W, H4, H4, DO_ANDN)
+RVVCALL(OPIVX2, vandn_vx_d, OP_UUU_D, H8, H8, DO_ANDN)
+GEN_VEXT_VX(vandn_vx_b, 1)
+GEN_VEXT_VX(vandn_vx_h, 2)
+GEN_VEXT_VX(vandn_vx_w, 4)
+GEN_VEXT_VX(vandn_vx_d, 8)
-- 
2.39.1