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authorNikunj A Dadhania <nikunj@linux.vnet.ibm.com>2017-01-06 11:44:55 +0530
committerDavid Gibson <david@gibson.dropbear.id.au>2017-01-31 10:10:14 +1100
commit05538220acaad3c7e8e438221fe97e483b451637 (patch)
treee175c787b4a437226f1eae8c82b5d9cdb53a7505 /target
parent9eceae320e7300473b5eb20c160c1730714f1692 (diff)
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target-ppc: Add xsxsigdp instruction
xsxsigdp: VSX Scalar Extract Significand Dual Precision Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'target')
-rw-r--r--target/ppc/translate/vsx-impl.inc.c29
-rw-r--r--target/ppc/translate/vsx-ops.inc.c1
2 files changed, 30 insertions, 0 deletions
diff --git a/target/ppc/translate/vsx-impl.inc.c b/target/ppc/translate/vsx-impl.inc.c
index 228e2a5..c6f2208 100644
--- a/target/ppc/translate/vsx-impl.inc.c
+++ b/target/ppc/translate/vsx-impl.inc.c
@@ -1239,6 +1239,35 @@ static void gen_xsxexpqp(DisasContext *ctx)
tcg_gen_andi_i64(xth, xth, 0x7FFF);
tcg_gen_movi_i64(xtl, 0);
}
+
+static void gen_xsxsigdp(DisasContext *ctx)
+{
+ TCGv rt = cpu_gpr[rD(ctx->opcode)];
+ TCGv_i64 t0, zr, nan, exp;
+
+ if (unlikely(!ctx->vsx_enabled)) {
+ gen_exception(ctx, POWERPC_EXCP_VSXU);
+ return;
+ }
+ exp = tcg_temp_new_i64();
+ t0 = tcg_temp_new_i64();
+ zr = tcg_const_i64(0);
+ nan = tcg_const_i64(2047);
+
+ tcg_gen_shri_i64(exp, cpu_vsrh(xB(ctx->opcode)), 52);
+ tcg_gen_andi_i64(exp, exp, 0x7FF);
+ tcg_gen_movi_i64(t0, 0x0010000000000000);
+ tcg_gen_movcond_i64(TCG_COND_EQ, t0, exp, zr, zr, t0);
+ tcg_gen_movcond_i64(TCG_COND_EQ, t0, exp, nan, zr, t0);
+ tcg_gen_andi_i64(rt, cpu_vsrh(xB(ctx->opcode)), 0x000FFFFFFFFFFFFF);
+ tcg_gen_or_i64(rt, rt, t0);
+
+ tcg_temp_free_i64(t0);
+ tcg_temp_free_i64(exp);
+ tcg_temp_free_i64(zr);
+ tcg_temp_free_i64(nan);
+}
+
#endif
#undef GEN_XX2FORM
diff --git a/target/ppc/translate/vsx-ops.inc.c b/target/ppc/translate/vsx-ops.inc.c
index 87f1852..1fd5285 100644
--- a/target/ppc/translate/vsx-ops.inc.c
+++ b/target/ppc/translate/vsx-ops.inc.c
@@ -116,6 +116,7 @@ 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),
+GEN_XX2FORM_EO(xsxsigdp, 0x16, 0x15, 0x01, PPC2_ISA300),
#endif
GEN_XX2FORM(xvabsdp, 0x12, 0x1D, PPC2_VSX),