[Qemu-ppc] [PULL 56/67] target-ppc: Add xsxexpdp instruction

[David Gibson]

From: Nikunj A Dadhania <address@hidden>

xsxexpdp: VSX Scalar Extract Exponent Dual Precision

Signed-off-by: Nikunj A Dadhania <address@hidden>
Signed-off-by: David Gibson <address@hidden>
---
 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 2a409a3..33ca177 100644
--- a/target/ppc/translate/vsx-impl.inc.c
+++ b/target/ppc/translate/vsx-impl.inc.c
@@ -1213,6 +1213,19 @@ 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 5c01aed..85d3b7d 100644
--- a/target/ppc/translate/vsx-ops.inc.c
+++ b/target/ppc/translate/vsx-ops.inc.c
@@ -113,6 +113,10 @@ GEN_VSX_XFORM_300_EO(xsnabsqp, 0x04, 0x19, 0x08, 
0x00000001),
 GEN_VSX_XFORM_300_EO(xsnegqp, 0x04, 0x19, 0x10, 0x00000001),
 GEN_VSX_XFORM_300(xscpsgnqp, 0x04, 0x03, 0x00000001),
 
+#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),
-- 
2.9.3