diff options
Diffstat (limited to 'target/ppc/translate/vsx-impl.inc.c')
| -rw-r--r-- | target/ppc/translate/vsx-impl.inc.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/target/ppc/translate/vsx-impl.inc.c b/target/ppc/translate/vsx-impl.inc.c index 4e57af7726..7e068a44a6 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 |