target/arm: Implement MVE VABD

Implement the MVE VABD insn.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210617121628.20116-17-peter.maydell@linaro.org

diff --git a/target/arm/helper-mve.h b/target/arm/helper-mve.h
index 5181d3b9413e835c9ac673efb60c7e8a3be8de39..5cd4e7d736d24847a2a4cf9ab821048f428a55ef 100644 (file)
--- a/target/arm/helper-mve.h
+++ b/target/arm/helper-mve.h
@@ -109,3 +109,10 @@ DEF_HELPER_FLAGS_4(mve_vminsw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
 DEF_HELPER_FLAGS_4(mve_vminub, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
 DEF_HELPER_FLAGS_4(mve_vminuh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
 DEF_HELPER_FLAGS_4(mve_vminuw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
+
+DEF_HELPER_FLAGS_4(mve_vabdsb, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
+DEF_HELPER_FLAGS_4(mve_vabdsh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
+DEF_HELPER_FLAGS_4(mve_vabdsw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
+DEF_HELPER_FLAGS_4(mve_vabdub, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
+DEF_HELPER_FLAGS_4(mve_vabduh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)
+DEF_HELPER_FLAGS_4(mve_vabduw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr)

diff --git a/target/arm/mve.decode b/target/arm/mve.decode
index 42d5504500c3def021a20f027415266bed606d97..087d3db2a3135a3e83e3c986ff780ed0799d8588 100644 (file)
--- a/target/arm/mve.decode
+++ b/target/arm/mve.decode
@@ -93,6 +93,9 @@ VMAX_U           111 1 1111 0 . .. ... 0 ... 0 0110 . 1 . 0 ... 0 @2op
 VMIN_S           111 0 1111 0 . .. ... 0 ... 0 0110 . 1 . 1 ... 0 @2op
 VMIN_U           111 1 1111 0 . .. ... 0 ... 0 0110 . 1 . 1 ... 0 @2op
 
+VABD_S           111 0 1111 0 . .. ... 0 ... 0 0111 . 1 . 0 ... 0 @2op
+VABD_U           111 1 1111 0 . .. ... 0 ... 0 0111 . 1 . 0 ... 0 @2op
+
 # Vector miscellaneous
 
 VCLS             1111 1111 1 . 11 .. 00 ... 0 0100 01 . 0 ... 0 @1op

diff --git a/target/arm/mve_helper.c b/target/arm/mve_helper.c
index c040e42bda2879d56ecca2c7e93a5d64f9ac20f1..63eacd7349bf8039b1ca3bf51be43968f96d9bd0 100644 (file)
--- a/target/arm/mve_helper.c
+++ b/target/arm/mve_helper.c
@@ -424,3 +424,8 @@ DO_2OP_S(vmaxs, DO_MAX)
 DO_2OP_U(vmaxu, DO_MAX)
 DO_2OP_S(vmins, DO_MIN)
 DO_2OP_U(vminu, DO_MIN)
+
+#define DO_ABD(N, M)  ((N) >= (M) ? (N) - (M) : (M) - (N))
+
+DO_2OP_S(vabds, DO_ABD)
+DO_2OP_U(vabdu, DO_ABD)

diff --git a/target/arm/translate-mve.c b/target/arm/translate-mve.c
index 107c393a997a2728fcccddb2d5e35d6b57cda72b..041fd1ef14fb41a689c55f4e9a515c10ba14387a 100644 (file)
--- a/target/arm/translate-mve.c
+++ b/target/arm/translate-mve.c
@@ -355,3 +355,5 @@ DO_2OP(VMAX_S, vmaxs)
 DO_2OP(VMAX_U, vmaxu)
 DO_2OP(VMIN_S, vmins)
 DO_2OP(VMIN_U, vminu)
+DO_2OP(VABD_S, vabds)
+DO_2OP(VABD_U, vabdu)