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[v1,12/14] target-ppc: Add xsxexpqp instruction

Message ID 1483683296-32568-13-git-send-email-nikunj@linux.vnet.ibm.com (mailing list archive)
State New, archived
Headers show

Commit Message

Nikunj A. Dadhania Jan. 6, 2017, 6:14 a.m. UTC 
xsxexpqp: VSX Scalar Extract Exponent Quad Precision

Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
---
 target/ppc/translate/vsx-impl.inc.c | 15 +++++++++++++++
 target/ppc/translate/vsx-ops.inc.c  |  1 +
 2 files changed, 16 insertions(+)
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Patch

diff --git a/target/ppc/translate/vsx-impl.inc.c b/target/ppc/translate/vsx-impl.inc.c
index b8ff31e..514a273 100644
--- a/target/ppc/translate/vsx-impl.inc.c
+++ b/target/ppc/translate/vsx-impl.inc.c
@@ -1227,6 +1227,21 @@  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 2243a1f..2ea8ce4 100644
--- a/target/ppc/translate/vsx-ops.inc.c
+++ b/target/ppc/translate/vsx-ops.inc.c
@@ -117,6 +117,7 @@  GEN_VSX_XFORM_300_EO(xscvqpdp, 0x04, 0x1A, 0x14, 0x0),
 
 #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),