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target-ppc: Add xsiexpdp instruction

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xsiexpdp: VSX Scalar Insert Exponent Double Precision

Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Nikunj A Dadhania 2017-01-10 14:20:35 +05:30 committed by David Gibson
parent a54238adac
commit 1b8d663d62
2 changed files with 21 additions and 0 deletions
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20
target/ppc/translate/vsx-impl.inc.c
View file

@ -1243,6 +1243,26 @@ static void gen_xsxexpqp(DisasContext *ctx)
tcg_gen_movi_i64(xtl, 0);
}
static void gen_xsiexpdp(DisasContext *ctx)
{
TCGv_i64 xth = cpu_vsrh(xT(ctx->opcode));
TCGv ra = cpu_gpr[rA(ctx->opcode)];
TCGv rb = cpu_gpr[rB(ctx->opcode)];
TCGv_i64 t0;
if (unlikely(!ctx->vsx_enabled)) {
gen_exception(ctx, POWERPC_EXCP_VSXU);
return;
}
t0 = tcg_temp_new_i64();
tcg_gen_andi_i64(xth, ra, 0x800FFFFFFFFFFFFF);
tcg_gen_andi_i64(t0, rb, 0x7FF);
tcg_gen_shli_i64(t0, t0, 52);
tcg_gen_or_i64(xth, xth, t0);
/* dword[1] is undefined */
tcg_temp_free_i64(t0);
}
static void gen_xsxsigdp(DisasContext *ctx)
{
TCGv rt = cpu_gpr[rD(ctx->opcode)];

1
target/ppc/translate/vsx-ops.inc.c
View file

@ -120,6 +120,7 @@ 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),
GEN_VSX_XFORM_300_EO(xsxsigqp, 0x04, 0x19, 0x12, 0x00000001),
GEN_HANDLER_E(xsiexpdp, 0x3C, 0x16, 0x1C, 0, PPC_NONE, PPC2_ISA300),
#endif
GEN_XX2FORM(xvabsdp, 0x12, 0x1D, PPC2_VSX),