[PATCH v4 1/2] RISC-V: Support Zcmp push/pop instructions.

[Kito Cheng]

> +/* If set, disassemble numeric register names instead of ABI names.  */
> +static int numeric = false;
>
>  /* Set default RISC-V disassembler options.  */
>
> @@ -84,6 +86,7 @@ set_default_riscv_dis_options (void)
>    riscv_gpr_names = riscv_gpr_names_abi;
>    riscv_fpr_names = riscv_fpr_names_abi;
>    no_aliases = false;
> +  numeric = false;
>  }
>
>  /* Parse RISC-V disassembler option (without arguments).  */
> @@ -97,6 +100,7 @@ parse_riscv_dis_option_without_args (const char *option)
>      {
>        riscv_gpr_names = riscv_gpr_names_numeric;
>        riscv_fpr_names = riscv_fpr_names_numeric;
> +      numeric = true;
>      }
>    else
>      return false;
> @@ -215,6 +219,50 @@ maybe_print_address (struct riscv_private_data *pd, int base_reg, int offset,
>      pd->print_addr = (bfd_vma)(uint32_t)pd->print_addr;
>  }
>
> +/* Get Zcmp reg_list field.  */
> +
> +static void
> +print_reg_list (disassemble_info *info, insn_t l)
> +{

bool numeric = riscv_gpr_names == riscv_gpr_names_numeric;

then you can drop numeric from global variables.

> +  unsigned reg_list = (int)EXTRACT_OPERAND (REG_LIST, l);
> +  unsigned r_start = numeric ? X_S2 : X_S0;
> +  info->fprintf_func (info->stream, "%s", riscv_gpr_names[X_RA]);
> +
> +  if (reg_list == 5)
> +    info->fprintf_func (info->stream, ",%s", riscv_gpr_names[X_S0]);
> +  else if (reg_list == 6 || (numeric && reg_list > 6))
> +    info->fprintf_func (info->stream, ",%s-%s",
> +         riscv_gpr_names[X_S0],
> +         riscv_gpr_names[X_S1]);
> +