Re: [RFC PATCH 23/42] target/mips/tx79: Introduce PEXE[HW] opcodes (Parallel Exchange Even)

[Richard Henderson]

On 2/14/21 9:58 AM, Philippe Mathieu-Daudé wrote:
> +    tcg_gen_mov_i64(ax, cpu_gpr[a->rt]);
> +    if (a->rd != a->rt) {
> +        tcg_gen_mov_i64(cpu_gpr[a->rd], cpu_gpr[a->rt]);
> +    }
> +    tcg_gen_deposit_i64(cpu_gpr[a->rd], cpu_gpr[a->rd], ax, 32, 16);
> +    tcg_gen_shri_i64(ax, ax, 32);
> +    tcg_gen_deposit_i64(cpu_gpr[a->rd], cpu_gpr[a->rd], ax, 0, 16);

  mask = tcg_constant_i64(0x0000ffff0000ffffull);
  tcg_gen_rotli_i64(x, t, 32);
  tcg_gen_and_i64(d, t, mask);
  tcg_gen_and_i64(x, x, mask);
  tcg_gen_or_i64(d, d, x);


r~