target-ppc: Add xsxexpqp instruction

xsxexpqp: VSX Scalar Extract Exponent Quad Precision

Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

diff --git a/target/ppc/translate/vsx-impl.inc.c b/target/ppc/translate/vsx-impl.inc.c
index 33ca1772c9d2bdffad167d11566ca0923a54ec63..228e2a5814ed6bb9a058677a6189643d054128c1 100644 (file)
--- a/target/ppc/translate/vsx-impl.inc.c
+++ b/target/ppc/translate/vsx-impl.inc.c
@@ -1224,6 +1224,21 @@ static void gen_xsxexpdp(DisasContext *ctx)
     tcg_gen_shri_i64(rt, cpu_vsrh(xB(ctx->opcode)), 52);
     tcg_gen_andi_i64(rt, rt, 0x7FF);
 }
+
+static void gen_xsxexpqp(DisasContext *ctx)
+{
+    TCGv_i64 xth = cpu_vsrh(rD(ctx->opcode) + 32);
+    TCGv_i64 xtl = cpu_vsrl(rD(ctx->opcode) + 32);
+    TCGv_i64 xbh = cpu_vsrh(rB(ctx->opcode) + 32);
+
+    if (unlikely(!ctx->vsx_enabled)) {
+        gen_exception(ctx, POWERPC_EXCP_VSXU);
+        return;
+    }
+    tcg_gen_shri_i64(xth, xbh, 48);
+    tcg_gen_andi_i64(xth, xth, 0x7FFF);
+    tcg_gen_movi_i64(xtl, 0);
+}
 #endif
 
 #undef GEN_XX2FORM

diff --git a/target/ppc/translate/vsx-ops.inc.c b/target/ppc/translate/vsx-ops.inc.c
index 85d3b7d1644c62e336c0ecc1d8d33d084bbf24b2..87f1852978f20777a2f46019d6b6bd48d4dbfdc6 100644 (file)
--- a/target/ppc/translate/vsx-ops.inc.c
+++ b/target/ppc/translate/vsx-ops.inc.c
@@ -115,6 +115,7 @@ GEN_VSX_XFORM_300(xscpsgnqp, 0x04, 0x03, 0x00000001),
 
 #ifdef TARGET_PPC64
 GEN_XX2FORM_EO(xsxexpdp, 0x16, 0x15, 0x00, PPC2_ISA300),
+GEN_VSX_XFORM_300_EO(xsxexpqp, 0x04, 0x19, 0x02, 0x00000001),
 #endif
 
 GEN_XX2FORM(xvabsdp, 0x12, 0x1D, PPC2_VSX),