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target-ppc: Add xviexpsp instruction

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xviexpsp: VSX Vector Insert Exponent Single 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 14:20:37 +05:30 committed by David Gibson
parent 8a9472ec38
commit d9031405a7
2 changed files with 28 additions and 0 deletions
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26
target/ppc/translate/vsx-impl.inc.c
View file

@ -1344,6 +1344,32 @@ static void gen_xsxsigqp(DisasContext *ctx)
}
#endif
static void gen_xviexpsp(DisasContext *ctx)
{
TCGv_i64 xth = cpu_vsrh(xT(ctx->opcode));
TCGv_i64 xtl = cpu_vsrl(xT(ctx->opcode));
TCGv_i64 xah = cpu_vsrh(xA(ctx->opcode));
TCGv_i64 xal = cpu_vsrl(xA(ctx->opcode));
TCGv_i64 xbh = cpu_vsrh(xB(ctx->opcode));
TCGv_i64 xbl = cpu_vsrl(xB(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, xah, 0x807FFFFF807FFFFF);
tcg_gen_andi_i64(t0, xbh, 0xFF000000FF);
tcg_gen_shli_i64(t0, t0, 23);
tcg_gen_or_i64(xth, xth, t0);
tcg_gen_andi_i64(xtl, xal, 0x807FFFFF807FFFFF);
tcg_gen_andi_i64(t0, xbl, 0xFF000000FF);
tcg_gen_shli_i64(t0, t0, 23);
tcg_gen_or_i64(xtl, xtl, t0);
tcg_temp_free_i64(t0);
}
#undef GEN_XX2FORM
#undef GEN_XX3FORM
#undef GEN_XX2IFORM

2
target/ppc/translate/vsx-ops.inc.c
View file

@ -124,6 +124,8 @@ GEN_HANDLER_E(xsiexpdp, 0x3C, 0x16, 0x1C, 0, PPC_NONE, PPC2_ISA300),
GEN_VSX_XFORM_300(xsiexpqp, 0x4, 0x1B, 0x00000001),
#endif
GEN_XX3FORM(xviexpsp, 0x00, 0x1B, PPC2_ISA300),
GEN_XX2FORM(xvabsdp, 0x12, 0x1D, PPC2_VSX),
GEN_XX2FORM(xvnabsdp, 0x12, 0x1E, PPC2_VSX),
GEN_XX2FORM(xvnegdp, 0x12, 0x1F, PPC2_VSX),