1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
|
%% -*- erlang-indent-level: 2 -*-
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
%% You may obtain a copy of the License at
%%
%% http://www.apache.org/licenses/LICENSE-2.0
%%
%% Unless required by applicable law or agreed to in writing, software
%% distributed under the License is distributed on an "AS IS" BASIS,
%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
%% See the License for the specific language governing permissions and
%% limitations under the License.
%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Copyright (c) 2002 by Erik Johansson.
%% ====================================================================
%% Filename : hipe_rtl_arith_32.erl
%% Module : hipe_rtl_arith_32
%% Purpose : To implement 32-bit RTL-arithmetic
%% Notes : The arithmetic works on 32-bit signed and unsigned
%% integers.
%% The implementation is taken from the implementation
%% of arithmetic on SPARC.
%% XXX: This code is seldom used, and hence also
%% seldom tested.
%% Look here for strange bugs appearing when
%% turning on rtl_prop.
%%
%% History : * 2002-10-23 Erik Stenman ([email protected]): Created.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-module(hipe_rtl_arith_32).
-export([eval_alu/3, eval_alub/4, eval_cond/3, eval_cond_bits/5]).
-define(BITS, 32).
-define(SIGN_BIT, 31).
-define(WORDMASK, 16#ffffffff).
-define(MAX_SIGNED_INT, 16#7fffffff).
-define(MIN_SIGNED_INT, -16#80000000).
-define(MAX_UNSIGNED_INT, 16#ffffffff).
-include("../main/hipe.hrl"). %% for ?EXIT
-include("hipe_rtl_arith.inc").
|
