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(* *********************************************************************)
(* *)
(* The Compcert verified compiler *)
(* *)
(* Xavier Leroy, INRIA Paris-Rocquencourt *)
(* *)
(* Copyright Institut National de Recherche en Informatique et en *)
(* Automatique. All rights reserved. This file is distributed *)
(* under the terms of the INRIA Non-Commercial License Agreement. *)
(* *)
(* *********************************************************************)
(** Pretty-printing of operators, conditions, addressing modes *)
open Format
open Camlcoq
open Integers
open Op
let comparison_name = function
| Ceq -> "=="
| Cne -> "!="
| Clt -> "<"
| Cle -> "<="
| Cgt -> ">"
| Cge -> ">="
let print_condition reg pp = function
| (Ccomp c, [r1;r2]) ->
fprintf pp "%a %ss %a" reg r1 (comparison_name c) reg r2
| (Ccompu c, [r1;r2]) ->
fprintf pp "%a %su %a" reg r1 (comparison_name c) reg r2
| (Ccompimm(c, n), [r1]) ->
fprintf pp "%a %ss %ld" reg r1 (comparison_name c) (camlint_of_coqint n)
| (Ccompuimm(c, n), [r1]) ->
fprintf pp "%a %su %ld" reg r1 (comparison_name c) (camlint_of_coqint n)
| (Ccompf c, [r1;r2]) ->
fprintf pp "%a %sf %a" reg r1 (comparison_name c) reg r2
| (Cnotcompf c, [r1;r2]) ->
fprintf pp "%a not(%sf) %a" reg r1 (comparison_name c) reg r2
| (Cmaskzero n, [r1]) ->
fprintf pp "%a & 0x%lx == 0" reg r1 (camlint_of_coqint n)
| (Cmasknotzero n, [r1]) ->
fprintf pp "%a & 0x%lx != 0" reg r1 (camlint_of_coqint n)
| _ ->
fprintf pp "<bad condition>"
let print_operation reg pp = function
| Omove, [r1] -> reg pp r1
| Ointconst n, [] -> fprintf pp "%ld" (camlint_of_coqint n)
| Ofloatconst n, [] -> fprintf pp "%F" n
| Oaddrsymbol(id, ofs), [] ->
fprintf pp "\"%s\" + %ld" (extern_atom id) (camlint_of_coqint ofs)
| Oaddrstack ofs, [] ->
fprintf pp "stack(%ld)" (camlint_of_coqint ofs)
| Ocast8signed, [r1] -> fprintf pp "int8signed(%a)" reg r1
| Ocast8unsigned, [r1] -> fprintf pp "int8unsigned(%a)" reg r1
| Ocast16signed, [r1] -> fprintf pp "int16signed(%a)" reg r1
| Ocast16unsigned, [r1] -> fprintf pp "int16unsigned(%a)" reg r1
| Oadd, [r1;r2] -> fprintf pp "%a + %a" reg r1 reg r2
| Oaddimm n, [r1] -> fprintf pp "%a + %ld" reg r1 (camlint_of_coqint n)
| Osub, [r1;r2] -> fprintf pp "%a - %a" reg r1 reg r2
| Osubimm n, [r1] -> fprintf pp "%ld - %a" (camlint_of_coqint n) reg r1
| Omul, [r1;r2] -> fprintf pp "%a * %a" reg r1 reg r2
| Omulimm n, [r1] -> fprintf pp "%a * %ld" reg r1 (camlint_of_coqint n)
| Odiv, [r1;r2] -> fprintf pp "%a /s %a" reg r1 reg r2
| Odivu, [r1;r2] -> fprintf pp "%a /u %a" reg r1 reg r2
| Oand, [r1;r2] -> fprintf pp "%a & %a" reg r1 reg r2
| Oandimm n, [r1] -> fprintf pp "%a & %ld" reg r1 (camlint_of_coqint n)
| Oor, [r1;r2] -> fprintf pp "%a | %a" reg r1 reg r2
| Oorimm n, [r1] -> fprintf pp "%a | %ld" reg r1 (camlint_of_coqint n)
| Oxor, [r1;r2] -> fprintf pp "%a ^ %a" reg r1 reg r2
| Oxorimm n, [r1] -> fprintf pp "%a ^ %ld" reg r1 (camlint_of_coqint n)
| Onand, [r1;r2] -> fprintf pp "not(%a & %a)" reg r1 reg r2
| Onor, [r1;r2] -> fprintf pp "not(%a | %a)" reg r1 reg r2
| Onxor, [r1;r2] -> fprintf pp "not(%a ^ %a)" reg r1 reg r2
| Oshl, [r1;r2] -> fprintf pp "%a << %a" reg r1 reg r2
| Oshr, [r1;r2] -> fprintf pp "%a >>s %a" reg r1 reg r2
| Oshrimm n, [r1] -> fprintf pp "%a >>s %ld" reg r1 (camlint_of_coqint n)
| Oshrximm n, [r1] -> fprintf pp "%a >>x %ld" reg r1 (camlint_of_coqint n)
| Oshru, [r1;r2] -> fprintf pp "%a >>u %a" reg r1 reg r2
| Orolm(n,m), [r1] ->
fprintf pp "(%a rol %ld) & 0x%lx"
reg r1 (camlint_of_coqint n) (camlint_of_coqint m)
| Oroli(n,m), [r1;r2] ->
fprintf pp "(%a & ~0x%lx) | ((%a rol %ld) & 0x%lx)"
reg r1 (camlint_of_coqint m)
reg r2 (camlint_of_coqint n) (camlint_of_coqint m)
| Onegf, [r1] -> fprintf pp "negf(%a)" reg r1
| Oabsf, [r1] -> fprintf pp "absf(%a)" reg r1
| Oaddf, [r1;r2] -> fprintf pp "%a +f %a" reg r1 reg r2
| Osubf, [r1;r2] -> fprintf pp "%a -f %a" reg r1 reg r2
| Omulf, [r1;r2] -> fprintf pp "%a *f %a" reg r1 reg r2
| Odivf, [r1;r2] -> fprintf pp "%a /f %a" reg r1 reg r2
| Omuladdf, [r1;r2;r3] -> fprintf pp "%a *f %a +f %a" reg r1 reg r2 reg r3
| Omulsubf, [r1;r2;r3] -> fprintf pp "%a *f %a -f %a" reg r1 reg r2 reg r3
| Osingleoffloat, [r1] -> fprintf pp "singleoffloat(%a)" reg r1
| Ointoffloat, [r1] -> fprintf pp "intoffloat(%a)" reg r1
| Ofloatofwords, [r1;r2] -> fprintf pp "floatofwords(%a,%a)" reg r1 reg r2
| Ocmp c, args -> print_condition reg pp (c, args)
| _ -> fprintf pp "<bad operator>"
let print_addressing reg pp = function
| Aindexed n, [r1] -> fprintf pp "%a + %ld" reg r1 (camlint_of_coqint n)
| Aindexed2, [r1; r2] -> fprintf pp "%a + %a" reg r1 reg r2
| Aglobal(id, ofs), [] -> fprintf pp "%s + %ld" (extern_atom id) (camlint_of_coqint ofs)
| Abased(id, ofs), [r1] -> fprintf pp "%s + %ld + %a" (extern_atom id) (camlint_of_coqint ofs) reg r1
| Ainstack ofs, [] -> fprintf pp "stack(%ld)" (camlint_of_coqint ofs)
| _ -> fprintf pp "<bad addressing>"
|
