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>
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@ -1432,6 +1432,46 @@ static void gen_xvxexpdp(DisasContext *ctx)
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GEN_VSX_HELPER_2(xvxsigsp, 0x00, 0x04, 0, PPC2_ISA300)
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static void gen_xvxsigdp(DisasContext *ctx)
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{
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TCGv_i64 xth = cpu_vsrh(xT(ctx->opcode));
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TCGv_i64 xtl = cpu_vsrl(xT(ctx->opcode));
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TCGv_i64 xbh = cpu_vsrh(xB(ctx->opcode));
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TCGv_i64 xbl = cpu_vsrl(xB(ctx->opcode));
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TCGv_i64 t0, zr, nan, exp;
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if (unlikely(!ctx->vsx_enabled)) {
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gen_exception(ctx, POWERPC_EXCP_VSXU);
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return;
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}
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exp = tcg_temp_new_i64();
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t0 = tcg_temp_new_i64();
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zr = tcg_const_i64(0);
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nan = tcg_const_i64(2047);
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tcg_gen_shri_i64(exp, xbh, 52);
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tcg_gen_andi_i64(exp, exp, 0x7FF);
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tcg_gen_movi_i64(t0, 0x0010000000000000);
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tcg_gen_movcond_i64(TCG_COND_EQ, t0, exp, zr, zr, t0);
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tcg_gen_movcond_i64(TCG_COND_EQ, t0, exp, nan, zr, t0);
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tcg_gen_andi_i64(xth, xbh, 0x000FFFFFFFFFFFFF);
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tcg_gen_or_i64(xth, xth, t0);
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tcg_gen_shri_i64(exp, xbl, 52);
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tcg_gen_andi_i64(exp, exp, 0x7FF);
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tcg_gen_movi_i64(t0, 0x0010000000000000);
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tcg_gen_movcond_i64(TCG_COND_EQ, t0, exp, zr, zr, t0);
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tcg_gen_movcond_i64(TCG_COND_EQ, t0, exp, nan, zr, t0);
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tcg_gen_andi_i64(xtl, xbl, 0x000FFFFFFFFFFFFF);
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tcg_gen_or_i64(xtl, xtl, t0);
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tcg_temp_free_i64(t0);
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tcg_temp_free_i64(exp);
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tcg_temp_free_i64(zr);
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tcg_temp_free_i64(nan);
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}
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#undef GEN_XX2FORM
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#undef GEN_XX3FORM
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#undef GEN_XX2IFORM
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@ -127,6 +127,7 @@ GEN_VSX_XFORM_300(xsiexpqp, 0x4, 0x1B, 0x00000001),
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GEN_XX3FORM(xviexpsp, 0x00, 0x1B, PPC2_ISA300),
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GEN_XX3FORM(xviexpdp, 0x00, 0x1F, PPC2_ISA300),
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GEN_XX2FORM_EO(xvxexpdp, 0x16, 0x1D, 0x00, PPC2_ISA300),
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GEN_XX2FORM_EO(xvxsigdp, 0x16, 0x1D, 0x01, PPC2_ISA300),
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GEN_XX2FORM_EO(xvxexpsp, 0x16, 0x1D, 0x08, PPC2_ISA300),
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GEN_XX2FORM_EO(xvxsigsp, 0x16, 0x1D, 0x09, PPC2_ISA300),
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