[Qemu-devel] [PATCH v1 11/14] target-ppc: Add xsxexpdp instruction

[Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>]

xsxexpdp: VSX Scalar Extract Exponent Dual Precision

Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
---
 target/ppc/translate/vsx-impl.inc.c | 13 +++++++++++++
 target/ppc/translate/vsx-ops.inc.c  |  4 ++++
 2 files changed, 17 insertions(+)

diff --git a/target/ppc/translate/vsx-impl.inc.c b/target/ppc/translate/vsx-impl.inc.c
index d9cdaf1..b8ff31e 100644
--- a/target/ppc/translate/vsx-impl.inc.c
+++ b/target/ppc/translate/vsx-impl.inc.c
@@ -1216,6 +1216,19 @@ static void gen_##name(DisasContext *ctx)                       \
 VSX_EXTRACT_INSERT(xxextractuw)
 VSX_EXTRACT_INSERT(xxinsertw)
 
+#ifdef TARGET_PPC64
+static void gen_xsxexpdp(DisasContext *ctx)
+{
+    TCGv rt = cpu_gpr[rD(ctx->opcode)];
+    if (unlikely(!ctx->vsx_enabled)) {
+        gen_exception(ctx, POWERPC_EXCP_VSXU);
+        return;
+    }
+    tcg_gen_shri_i64(rt, cpu_vsrh(xB(ctx->opcode)), 52);
+    tcg_gen_andi_i64(rt, rt, 0x7FF);
+}
+#endif
+
 #undef GEN_XX2FORM
 #undef GEN_XX3FORM
 #undef GEN_XX2IFORM
diff --git a/target/ppc/translate/vsx-ops.inc.c b/target/ppc/translate/vsx-ops.inc.c
index cc5b268..2243a1f 100644
--- a/target/ppc/translate/vsx-ops.inc.c
+++ b/target/ppc/translate/vsx-ops.inc.c
@@ -115,6 +115,10 @@ GEN_VSX_XFORM_300(xscpsgnqp, 0x04, 0x03, 0x00000001),
 GEN_VSX_XFORM_300_EO(xscvdpqp, 0x04, 0x1A, 0x16, 0x00000001),
 GEN_VSX_XFORM_300_EO(xscvqpdp, 0x04, 0x1A, 0x14, 0x0),
 
+#ifdef TARGET_PPC64
+GEN_XX2FORM_EO(xsxexpdp, 0x16, 0x15, 0x00, PPC2_ISA300),
+#endif
+
 GEN_XX2FORM(xvabsdp, 0x12, 0x1D, PPC2_VSX),
 GEN_XX2FORM(xvnabsdp, 0x12, 0x1E, PPC2_VSX),
 GEN_XX2FORM(xvnegdp, 0x12, 0x1F, PPC2_VSX),
-- 
2.7.4