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ffa_ch1_genesis.kv      1 ------------------------------------------------------------------------------
ffa_ch1_genesis.kv 2 ------------------------------------------------------------------------------
ffa_ch1_genesis.kv 3 -- This file is part of 'Finite Field Arithmetic', aka 'FFA'. --
ffa_ch1_genesis.kv 4 -- --
ffa_ch1_genesis.kv 5 -- (C) 2017 Stanislav Datskovskiy ( www.loper-os.org ) --
ffa_ch1_genesis.kv 6 -- http://wot.deedbot.org/17215D118B7239507FAFED98B98228A001ABFFC7.html --
ffa_ch1_genesis.kv 7 -- --
ffa_ch1_genesis.kv 8 -- You do not have, nor can you ever acquire the right to use, copy or --
ffa_ch1_genesis.kv 9 -- distribute this software ; Should you use this software for any purpose, --
ffa_ch1_genesis.kv 10 -- or copy and distribute it to anyone or in any manner, you are breaking --
ffa_ch1_genesis.kv 11 -- the laws of whatever soi-disant jurisdiction, and you promise to --
ffa_ch1_genesis.kv 12 -- continue doing so for the indefinite future. In any case, please --
ffa_ch1_genesis.kv 13 -- always : read and understand any software ; verify any PGP signatures --
ffa_ch1_genesis.kv 14 -- that you use - for any purpose. --
ffa_ch1_genesis.kv 15 -- --
ffa_ch1_genesis.kv 16 -- See also http://trilema.com/2015/a-new-software-licensing-paradigm . --
ffa_ch1_genesis.kv 17 ------------------------------------------------------------------------------
ffa_ch1_genesis.kv 18 ------------------------------------------------------------------------------
ffa_ch1_genesis.kv 19
ffa_ch1_genesis.kv 20 -- From Ada:
ffa_ch1_genesis.kv 21 with Ada.Text_IO; use Ada.Text_IO;
ffa_ch1_genesis.kv 22
ffa_ch1_genesis.kv 23 -- From FFA:
ffa_ch1_genesis.kv 24 with Words; use Words;
ffa_ch1_genesis.kv 25 with FZ_Type; use FZ_Type;
ffa_ch1_genesis.kv 26 with FZ_Arith; use FZ_Arith;
ffa_ch1_genesis.kv 27
ffa_ch1_genesis.kv 28 -- From the Demo:
ffa_ch1_genesis.kv 29 with FFA_IO; use FFA_IO;
ffa_ch1_genesis.kv 30
ffa_ch1_genesis.kv 31
ffa_ch1_genesis.kv 32 package body Demo_Ch1 is
ffa_ch1_genesis.kv 33
ffa_ch1_genesis.kv 34 procedure Demo_Add_Sub is
ffa_ch1_genesis.kv 35
ffa_ch1_genesis.kv 36 -- We are using 64-bit Words (see iron.ads).
ffa_ch1_genesis.kv 37 -- We'll begin with an elementary demo, using 256-bit FZ:
ffa_ch1_genesis.kv 38 X : FZ(1 .. 4) := (0, 0, 0, 0);
ffa_ch1_genesis.kv 39 Y : FZ(1 .. 4) := (16#5555#, 0, 0, 0);
ffa_ch1_genesis.kv 40 Z : FZ(1 .. 4) := (0, 0, 0, 0);
ffa_ch1_genesis.kv 41
ffa_ch1_genesis.kv 42 -- Carry.
ffa_ch1_genesis.kv 43 C : WBool := 0;
ffa_ch1_genesis.kv 44
ffa_ch1_genesis.kv 45 begin
ffa_ch1_genesis.kv 46
ffa_ch1_genesis.kv 47 Put_Line("X =");
ffa_ch1_genesis.kv 48 Dump(X);
ffa_ch1_genesis.kv 49 New_Line;
ffa_ch1_genesis.kv 50
ffa_ch1_genesis.kv 51 Put_Line("Y =");
ffa_ch1_genesis.kv 52 Dump(Y);
ffa_ch1_genesis.kv 53 New_Line;
ffa_ch1_genesis.kv 54
ffa_ch1_genesis.kv 55 FZ_Add(X, Y, Z, C);
ffa_ch1_genesis.kv 56 Put_Line("X + Y =");
ffa_ch1_genesis.kv 57 Dump(Z);
ffa_ch1_genesis.kv 58 New_Line;
ffa_ch1_genesis.kv 59 Put_Line("C = " & WBool'Image(C));
ffa_ch1_genesis.kv 60
ffa_ch1_genesis.kv 61 FZ_Sub(X, Y, Z, C);
ffa_ch1_genesis.kv 62 Put_Line("X - Y =");
ffa_ch1_genesis.kv 63 Dump(Z);
ffa_ch1_genesis.kv 64 New_Line;
ffa_ch1_genesis.kv 65 Put_Line("C = " & WBool'Image(C));
ffa_ch1_genesis.kv 66
ffa_ch1_genesis.kv 67 end Demo_Add_Sub;
ffa_ch1_genesis.kv 68
ffa_ch1_genesis.kv 69 end Demo_Ch1;