File : s-textio-angel.adb
1 ------------------------------------------------------------------------------
2 -- --
3 -- GNAT RUN-TIME COMPONENTS --
4 -- --
5 -- S Y S T E M . T E X T _ I O --
6 -- --
7 -- B o d y --
8 -- --
9 -- Copyright (C) 1992-2013, Free Software Foundation, Inc. --
10 -- --
11 -- GNAT is free software; you can redistribute it and/or modify it under --
12 -- terms of the GNU General Public License as published by the Free Soft- --
13 -- ware Foundation; either version 3, or (at your option) any later ver- --
14 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
16 -- or FITNESS FOR A PARTICULAR PURPOSE. --
17 -- --
18 -- --
19 -- --
20 -- --
21 -- --
22 -- You should have received a copy of the GNU General Public License and --
23 -- a copy of the GCC Runtime Library Exception along with this program; --
24 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
25 -- <http://www.gnu.org/licenses/>. --
26 -- --
27 -- GNAT was originally developed by the GNAT team at New York University. --
28 -- Extensive contributions were provided by Ada Core Technologies Inc. --
29 -- --
30 ------------------------------------------------------------------------------
31
32 with System.Machine_Code; use System.Machine_Code;
33 package body System.Text_IO is
34
35 ----------------
36 -- Initialize --
37 ----------------
38
39 procedure Initialize is
40 begin
41 Initialized := True;
42 end Initialize;
43
44 -----------------
45 -- Is_Tx_Ready --
46 -----------------
47
48 function Is_Tx_Ready return Boolean is (True);
49
50 ---------
51 -- Put --
52 ---------
53
54 procedure Put (C : Character) is
55 begin
56 Asm (Template => "mov r0, 3" & ASCII.LF & ASCII.HT
57 & "mov r1, %0" & ASCII.LF & ASCII.HT
58 & "bkpt 0xab",
59 Inputs => (Address'Asm_Input ("r", C'Address)),
60 Volatile => True);
61 end Put;
62
63 ----------------------------
64 -- Use_Cr_Lf_For_New_Line --
65 ----------------------------
66
67 function Use_Cr_Lf_For_New_Line return Boolean is (True);
68
69 -----------------
70 -- Is_Rx_Ready --
71 -----------------
72
73 function Is_Rx_Ready return Boolean is (False);
74
75 ---------
76 -- Get --
77 ---------
78
79 function Get return Character is (Character'Val (26));
80 end System.Text_IO;