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| author | Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> | 2017-01-10 14:20:42 +0530 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2017-01-31 10:10:14 +1100 |
| commit | cf9465a166acfca7ca30b720ca60a6634779910a (patch) | |
| tree | 7d158b48baba07405075207566cbd0bd6ddf5a71 /target | |
| parent | c5969d2eb17103d6c38c2d244d33ed2404210cd9 (diff) | |
| download | qemu-cf9465a166acfca7ca30b720ca60a6634779910a.zip qemu-cf9465a166acfca7ca30b720ca60a6634779910a.tar.gz qemu-cf9465a166acfca7ca30b720ca60a6634779910a.tar.bz2 | |
target-ppc: Add xvxsigdp instruction
xvxsigdp: VSX Vector 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.c | 40 | ||||
| -rw-r--r-- | target/ppc/translate/vsx-ops.inc.c | 1 |
2 files changed, 41 insertions, 0 deletions
diff --git a/target/ppc/translate/vsx-impl.inc.c b/target/ppc/translate/vsx-impl.inc.c index 4e57af7..7e068a4 100644 --- a/target/ppc/translate/vsx-impl.inc.c +++ b/target/ppc/translate/vsx-impl.inc.c @@ -1432,6 +1432,46 @@ static void gen_xvxexpdp(DisasContext *ctx) GEN_VSX_HELPER_2(xvxsigsp, 0x00, 0x04, 0, PPC2_ISA300) +static void gen_xvxsigdp(DisasContext *ctx) +{ + TCGv_i64 xth = cpu_vsrh(xT(ctx->opcode)); + TCGv_i64 xtl = cpu_vsrl(xT(ctx->opcode)); + TCGv_i64 xbh = cpu_vsrh(xB(ctx->opcode)); + TCGv_i64 xbl = cpu_vsrl(xB(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, xbh, 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(xth, xbh, 0x000FFFFFFFFFFFFF); + tcg_gen_or_i64(xth, xth, t0); + + tcg_gen_shri_i64(exp, xbl, 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(xtl, xbl, 0x000FFFFFFFFFFFFF); + tcg_gen_or_i64(xtl, xtl, t0); + + tcg_temp_free_i64(t0); + tcg_temp_free_i64(exp); + tcg_temp_free_i64(zr); + tcg_temp_free_i64(nan); +} + #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 2c4f641..367fd38 100644 --- a/target/ppc/translate/vsx-ops.inc.c +++ b/target/ppc/translate/vsx-ops.inc.c @@ -127,6 +127,7 @@ GEN_VSX_XFORM_300(xsiexpqp, 0x4, 0x1B, 0x00000001), GEN_XX3FORM(xviexpsp, 0x00, 0x1B, PPC2_ISA300), GEN_XX3FORM(xviexpdp, 0x00, 0x1F, PPC2_ISA300), GEN_XX2FORM_EO(xvxexpdp, 0x16, 0x1D, 0x00, PPC2_ISA300), +GEN_XX2FORM_EO(xvxsigdp, 0x16, 0x1D, 0x01, PPC2_ISA300), GEN_XX2FORM_EO(xvxexpsp, 0x16, 0x1D, 0x08, PPC2_ISA300), GEN_XX2FORM_EO(xvxsigsp, 0x16, 0x1D, 0x09, PPC2_ISA300), |