67 lines
2.1 KiB
OCaml
67 lines
2.1 KiB
OCaml
(***********************************************************************)
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(* *)
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(* Caml Special Light *)
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(* *)
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(* Xavier Leroy, projet Cristal, INRIA Rocquencourt *)
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(* *)
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(* Copyright 1995 Institut National de Recherche en Informatique et *)
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(* Automatique. Distributed only by permission. *)
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(* *)
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(***********************************************************************)
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(* $Id$ *)
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(* Specific operations for the HP PA-RISC processor *)
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open Format
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type specific_operation =
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Ishift1add
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| Ishift2add
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| Ishift3add
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(* Addressing modes *)
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type addressing_mode =
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Ibased of string * int (* symbol + displ *)
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| Iindexed of int (* reg + displ *)
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(* Sizes, endianness *)
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let big_endian = true
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let size_addr = 4
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let size_int = 4
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let size_float = 8
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(* Operations on addressing modes *)
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let identity_addressing = Iindexed 0
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let offset_addressing addr delta =
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match addr with
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Ibased(s, n) -> Ibased(s, n + delta)
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| Iindexed n -> Iindexed(n + delta)
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let num_args_addressing = function
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Ibased(s, n) -> 0
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| Iindexed n -> 1
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(* Printing operations and addressing modes *)
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let print_addressing printreg addr arg =
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match addr with
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Ibased(s, n) ->
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print_string "\""; print_string s; print_string "\"";
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if n <> 0 then begin print_string " + "; print_int n end
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| Iindexed n ->
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printreg arg.(0);
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if n <> 0 then begin print_string " + "; print_int n end
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let print_specific_operation printreg op arg =
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match op with
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Ishift1add -> printreg arg.(0); print_string " << 1 + "; printreg arg.(1)
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| Ishift2add -> printreg arg.(0); print_string " << 2 + "; printreg arg.(1)
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| Ishift3add -> printreg arg.(0); print_string " << 3 + "; printreg arg.(1)
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