diff options
Diffstat (limited to 'target-arm/translate-a64.c')
| -rw-r--r-- | target-arm/translate-a64.c | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/target-arm/translate-a64.c b/target-arm/translate-a64.c index 2111bcdd10..2bb1795959 100644 --- a/target-arm/translate-a64.c +++ b/target-arm/translate-a64.c @@ -1114,6 +1114,24 @@ static void handle_clz(DisasContext *s, unsigned int sf, } } +static void handle_cls(DisasContext *s, unsigned int sf, + unsigned int rn, unsigned int rd) +{ + TCGv_i64 tcg_rd, tcg_rn; + tcg_rd = cpu_reg(s, rd); + tcg_rn = cpu_reg(s, rn); + + if (sf) { + gen_helper_cls64(tcg_rd, tcg_rn); + } else { + TCGv_i32 tcg_tmp32 = tcg_temp_new_i32(); + tcg_gen_trunc_i64_i32(tcg_tmp32, tcg_rn); + gen_helper_cls32(tcg_tmp32, tcg_tmp32); + tcg_gen_extu_i32_i64(tcg_rd, tcg_tmp32); + tcg_temp_free_i32(tcg_tmp32); + } +} + static void handle_rbit(DisasContext *s, unsigned int sf, unsigned int rn, unsigned int rd) { @@ -1236,7 +1254,7 @@ static void disas_data_proc_1src(DisasContext *s, uint32_t insn) handle_clz(s, sf, rn, rd); break; case 5: /* CLS */ - unsupported_encoding(s, insn); + handle_cls(s, sf, rn, rd); break; } } |