diff options
| author | Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> | 2017-01-06 11:44:55 +0530 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2017-01-31 10:10:14 +1100 |
| commit | 05538220acaad3c7e8e438221fe97e483b451637 (patch) | |
| tree | e175c787b4a437226f1eae8c82b5d9cdb53a7505 /target/ppc/translate | |
| parent | 9eceae320e7300473b5eb20c160c1730714f1692 (diff) | |
| download | qemu-05538220acaad3c7e8e438221fe97e483b451637.tar.gz | |
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/ppc/translate')
| -rw-r--r-- | target/ppc/translate/vsx-impl.inc.c | 29 | ||||
| -rw-r--r-- | target/ppc/translate/vsx-ops.inc.c | 1 |
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 228e2a5814..c6f2208e22 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 87f1852978..1fd52859bf 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), |