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target/arm: Implement the GMI instruction 

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200626033144.790098-13-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2020-06-25 20:31:10 -07:00 committed by Peter Maydell
parent efbc78ad97
commit 438efea0bb
1 changed files with 15 additions and 0 deletions
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15
target/arm/translate-a64.c
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@ -5346,6 +5346,21 @@ static void disas_data_proc_2src(DisasContext *s, uint32_t insn)
cpu_reg_sp(s, rn));
}
break;
case 5: /* GMI */
if (sf == 0 || !dc_isar_feature(aa64_mte_insn_reg, s)) {
goto do_unallocated;
} else {
TCGv_i64 t1 = tcg_const_i64(1);
TCGv_i64 t2 = tcg_temp_new_i64();
tcg_gen_extract_i64(t2, cpu_reg_sp(s, rn), 56, 4);
tcg_gen_shl_i64(t1, t1, t2);
tcg_gen_or_i64(cpu_reg(s, rd), cpu_reg(s, rm), t1);
tcg_temp_free_i64(t1);
tcg_temp_free_i64(t2);
}
break;
case 8: /* LSLV */
handle_shift_reg(s, A64_SHIFT_TYPE_LSL, sf, rm, rn, rd);
break;