From: Matheus Ferst <matheus.fe...@eldorado.org.br>
Signed-off-by: Matheus Ferst <matheus.fe...@eldorado.org.br>
---
target/ppc/insn32.decode | 2 ++
target/ppc/translate/vmx-impl.c.inc | 56 +++++++++++++++++++++++++++++
2 files changed, 58 insertions(+)
diff --git a/target/ppc/insn32.decode b/target/ppc/insn32.decode
index ea497ecd80..483651cf9c 100644
--- a/target/ppc/insn32.decode
+++ b/target/ppc/insn32.decode
@@ -501,6 +501,8 @@ VSTRIBR 000100 ..... 00001 ..... . 0000001101
@VX_tb_rc
VSTRIHL 000100 ..... 00010 ..... . 0000001101 @VX_tb_rc
VSTRIHR 000100 ..... 00011 ..... . 0000001101 @VX_tb_rc
+VCLRLB 000100 ..... ..... ..... 00110001101 @VX
+
# VSX Load/Store Instructions
LXV 111101 ..... ..... ............ . 001 @DQ_TSX
diff --git a/target/ppc/translate/vmx-impl.c.inc
b/target/ppc/translate/vmx-impl.c.inc
index 8bcf637ff8..3fb4935bff 100644
--- a/target/ppc/translate/vmx-impl.c.inc
+++ b/target/ppc/translate/vmx-impl.c.inc
@@ -1956,6 +1956,62 @@ TRANS(VSTRIBR, do_vstri, gen_helper_VSTRIBR)
TRANS(VSTRIHL, do_vstri, gen_helper_VSTRIHL)
TRANS(VSTRIHR, do_vstri, gen_helper_VSTRIHR)
+static bool trans_VCLRLB(DisasContext *ctx, arg_VX *a)
+{
+ TCGv_i64 hi, lo, rb;
+ TCGLabel *l, *end;
+
+ REQUIRE_INSNS_FLAGS2(ctx, ISA310);
+ REQUIRE_VECTOR(ctx);
+
+ l = gen_new_label();
+ end = gen_new_label();
+
+ hi = tcg_const_local_i64(0);
+ lo = tcg_const_local_i64(0);
+ rb = tcg_temp_local_new_i64();
+
+ tcg_gen_extu_tl_i64(rb, cpu_gpr[a->vrb]);
+
+ /* RB == 0: all zeros */
+ tcg_gen_brcondi_i64(TCG_COND_EQ, rb, 0, end);
+
+ get_avr64(lo, a->vra, false);
+
+ /* RB <= 8 */
+ tcg_gen_brcondi_i64(TCG_COND_LEU, rb, 8, l);
+
+ get_avr64(hi, a->vra, true);
+
+ /* RB >= 16: just copy VRA to VRB */
+ tcg_gen_brcondi_i64(TCG_COND_GEU, rb, 16, end);
+
+ /* 8 < RB < 16: copy lo and partially clear hi */
+ tcg_gen_subfi_i64(rb, 16, rb);
+ tcg_gen_shli_i64(rb, rb, 3);
+ tcg_gen_shl_i64(hi, hi, rb);
+ tcg_gen_shr_i64(hi, hi, rb);
+ tcg_gen_br(end);
+
+ /* 0 < RB <= 8: zeroes hi and partially clears lo */
+ gen_set_label(l);
+ tcg_gen_subfi_i64(rb, 8, rb);
+ tcg_gen_shli_i64(rb, rb, 3);
+ tcg_gen_shl_i64(lo, lo, rb);
+ tcg_gen_shr_i64(lo, lo, rb);
+
+ /* Update VRT */
+ gen_set_label(end);
+ set_avr64(a->vrt, hi, true);
+ set_avr64(a->vrt, lo, false);
+
+ tcg_temp_free_i64(hi);
+ tcg_temp_free_i64(lo);
+ tcg_temp_free_i64(rb);
+
+ return true;
+}
+
#define GEN_VAFORM_PAIRED(name0, name1, opc2) \
static void glue(gen_, name0##_##name1)(DisasContext *ctx) \
{ \
--
2.25.1
