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ffa_ch4_ffacalc         1 ------------------------------------------------------------------------------
ffa_ch4_ffacalc 2 ------------------------------------------------------------------------------
ffa_ch4_ffacalc 3 -- This file is part of 'Finite Field Arithmetic', aka 'FFA'. --
ffa_ch4_ffacalc 4 -- --
ffa_ch4_ffacalc 5 -- (C) 2017 Stanislav Datskovskiy ( www.loper-os.org ) --
ffa_ch4_ffacalc 6 -- http://wot.deedbot.org/17215D118B7239507FAFED98B98228A001ABFFC7.html --
ffa_ch4_ffacalc 7 -- --
ffa_ch4_ffacalc 8 -- You do not have, nor can you ever acquire the right to use, copy or --
ffa_ch4_ffacalc 9 -- distribute this software ; Should you use this software for any purpose, --
ffa_ch4_ffacalc 10 -- or copy and distribute it to anyone or in any manner, you are breaking --
ffa_ch4_ffacalc 11 -- the laws of whatever soi-disant jurisdiction, and you promise to --
ffa_ch4_ffacalc 12 -- continue doing so for the indefinite future. In any case, please --
ffa_ch4_ffacalc 13 -- always : read and understand any software ; verify any PGP signatures --
ffa_ch4_ffacalc 14 -- that you use - for any purpose. --
ffa_ch4_ffacalc 15 -- --
ffa_ch4_ffacalc 16 -- See also http://trilema.com/2015/a-new-software-licensing-paradigm . --
ffa_ch4_ffacalc 17 ------------------------------------------------------------------------------
ffa_ch4_ffacalc 18 ------------------------------------------------------------------------------
ffa_ch4_ffacalc 19
ffa_ch4_ffacalc 20 with OS; use OS;
ffa_ch4_ffacalc 21
ffa_ch4_ffacalc 22
ffa_ch4_ffacalc 23 with Words; use Words;
ffa_ch4_ffacalc 24 with W_Shifts; use W_Shifts;
ffa_ch4_ffacalc 25 with FZ_Type; use FZ_Type;
ffa_ch4_ffacalc 26
ffa_ch4_ffacalc 27
ffa_ch4_ffacalc 28 package body FFA_IO is
ffa_ch4_ffacalc 29
ffa_ch4_ffacalc 30 -- Obtain the WChars corresponding to the given Word
ffa_ch4_ffacalc 31 function W_To_WChars(N : Word) return WChars is
ffa_ch4_ffacalc 32 H : constant array(0 .. 15) of Character := "0123456789ABCDEF";
ffa_ch4_ffacalc 33 W : Word := N;
ffa_ch4_ffacalc 34 Result : WChars;
ffa_ch4_ffacalc 35 begin
ffa_ch4_ffacalc 36 for b in WChars'Range loop -- From bottom to top:
ffa_ch4_ffacalc 37 Result(B) := H(Natural(W and 16#F#)); -- Get current nibble.
ffa_ch4_ffacalc 38 W := Shift_Right(W, 4); -- Get the next nibble.
ffa_ch4_ffacalc 39 end loop;
ffa_ch4_ffacalc 40 return Result;
ffa_ch4_ffacalc 41 end W_To_WChars;
ffa_ch4_ffacalc 42
ffa_ch4_ffacalc 43
ffa_ch4_ffacalc 44 -- Display a hex representation of W to stdout
ffa_ch4_ffacalc 45 procedure Dump(W : in Word) is
ffa_ch4_ffacalc 46 T : WChars := W_To_WChars(W);
ffa_ch4_ffacalc 47 begin
ffa_ch4_ffacalc 48 for i in reverse T'Range loop
ffa_ch4_ffacalc 49 Write_Char(T(i));
ffa_ch4_ffacalc 50 end loop;
ffa_ch4_ffacalc 51 end Dump;
ffa_ch4_ffacalc 52
ffa_ch4_ffacalc 53
ffa_ch4_ffacalc 54 -- Display a hex representation of N to stdout
ffa_ch4_ffacalc 55 procedure Dump(N : in FZ) is
ffa_ch4_ffacalc 56 begin
ffa_ch4_ffacalc 57 for i in reverse N'Range loop
ffa_ch4_ffacalc 58 Dump(N(i));
ffa_ch4_ffacalc 59 end loop;
ffa_ch4_ffacalc 60
ffa_ch4_ffacalc 61 -- Newline, for clarity.
ffa_ch4_ffacalc 62 Write_Newline;
ffa_ch4_ffacalc 63 end Dump;
ffa_ch4_ffacalc 64
ffa_ch4_ffacalc 65 end FFA_IO;