67 lines
2.1 KiB
OCaml
67 lines
2.1 KiB
OCaml
(***********************************************************************)
|
|
(* *)
|
|
(* Objective Caml *)
|
|
(* *)
|
|
(* Xavier Leroy, projet Cristal, INRIA Rocquencourt *)
|
|
(* *)
|
|
(* Copyright 1996 Institut National de Recherche en Informatique et *)
|
|
(* Automatique. Distributed only by permission. *)
|
|
(* *)
|
|
(***********************************************************************)
|
|
|
|
(* $Id$ *)
|
|
|
|
(* Specific operations for the HP PA-RISC processor *)
|
|
|
|
open Format
|
|
|
|
type specific_operation =
|
|
Ishift1add
|
|
| Ishift2add
|
|
| Ishift3add
|
|
|
|
(* Addressing modes *)
|
|
|
|
type addressing_mode =
|
|
Ibased of string * int (* symbol + displ *)
|
|
| Iindexed of int (* reg + displ *)
|
|
|
|
(* Sizes, endianness *)
|
|
|
|
let big_endian = true
|
|
|
|
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 arg =
|
|
match addr with
|
|
Ibased(s, n) ->
|
|
print_string "\""; print_string s; print_string "\"";
|
|
if n <> 0 then begin print_string " + "; print_int n end
|
|
| Iindexed n ->
|
|
printreg arg.(0);
|
|
if n <> 0 then begin print_string " + "; print_int n end
|
|
|
|
let print_specific_operation printreg op arg =
|
|
match op with
|
|
Ishift1add -> printreg arg.(0); print_string " << 1 + "; printreg arg.(1)
|
|
| Ishift2add -> printreg arg.(0); print_string " << 2 + "; printreg arg.(1)
|
|
| Ishift3add -> printreg arg.(0); print_string " << 3 + "; printreg arg.(1)
|
|
|