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(***********************************************************************)
(* *)
(* Objective Caml *)
(* *)
(* Xavier Leroy, projet Cristal, INRIA Rocquencourt *)
(* *)
(* Copyright 1996 Institut National de Recherche en Informatique et *)
(* en Automatique. All rights reserved. This file is distributed *)
(* under the terms of the Q Public License version 1.0. *)
(* *)
(***********************************************************************)
(* $Id$ *)
(* Specific operations for the Mips processor *)
open Misc
open Format
(* Machine-specific command-line options *)
let command_line_options = []
(* Addressing modes *)
type addressing_mode =
Ibased of string * int (* symbol + displ *)
| Iindexed of int (* reg + displ *)
(* Specific operations *)
type specific_operation = unit (* none *)
(* Sizes, endianness *)
let big_endian =
match Config.system with
"ultrix" -> false
| "irix" -> true
| _ -> fatal_error "Arch_mips.big_endian"
let size_addr = 4
let size_int = 4
let size_float = 8
(* Operations on addressing modes *)
let identity_addressing = Iindexed 0
let offset_addressing addr delta =
match addr with
Ibased(s, n) -> Ibased(s, n + delta)
| Iindexed n -> Iindexed(n + delta)
let num_args_addressing = function
Ibased(s, n) -> 0
| Iindexed n -> 1
(* Printing operations and addressing modes *)
let print_addressing printreg addr ppf arg =
match addr with
| Ibased(s, n) ->
let idx = if n <> 0 then Printf.sprintf " + %i" n else "" in
fprintf ppf "\"%s\"%s" s idx
| Iindexed n ->
let idx = if n <> 0 then Printf.sprintf " + %i" n else "" in
fprintf ppf "%a%s" printreg arg.(0) idx
let print_specific_operation printreg op ppf arg =
fatal_error "Arch_mips.print_specific_operation"
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