target/arm: Convert VNMUL to decodetree

Convert the VNMUL instruction to decodetree.

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

1 files changed, 24 insertions, 0 deletions

diff --git a/target/arm/translate-vfp.inc.c b/target/arm/translate-vfp.inc.c
index a2afe82b34..4c684f033b 100644
--- a/target/arm/translate-vfp.inc.c
+++ b/target/arm/translate-vfp.inc.c
@@ -1427,3 +1427,27 @@ static bool trans_VMUL_dp(DisasContext *s, arg_VMUL_sp *a)
 {
     return do_vfp_3op_dp(s, gen_helper_vfp_muld, a->vd, a->vn, a->vm, false);
 }
+
+static void gen_VNMUL_sp(TCGv_i32 vd, TCGv_i32 vn, TCGv_i32 vm, TCGv_ptr fpst)
+{
+    /* VNMUL: -(fn * fm) */
+    gen_helper_vfp_muls(vd, vn, vm, fpst);
+    gen_helper_vfp_negs(vd, vd);
+}
+
+static bool trans_VNMUL_sp(DisasContext *s, arg_VNMUL_sp *a)
+{
+    return do_vfp_3op_sp(s, gen_VNMUL_sp, a->vd, a->vn, a->vm, false);
+}
+
+static void gen_VNMUL_dp(TCGv_i64 vd, TCGv_i64 vn, TCGv_i64 vm, TCGv_ptr fpst)
+{
+    /* VNMUL: -(fn * fm) */
+    gen_helper_vfp_muld(vd, vn, vm, fpst);
+    gen_helper_vfp_negd(vd, vd);
+}
+
+static bool trans_VNMUL_dp(DisasContext *s, arg_VNMUL_sp *a)
+{
+    return do_vfp_3op_dp(s, gen_VNMUL_dp, a->vd, a->vn, a->vm, false);
+}