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ARITEST.PAS
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Pascal/Delphi Source File
|
1993-03-07
|
6KB
|
225 lines
PROGRAM AriTest; { Copyright (c) 1990-1993 Norbert Juffa }
{ Aritest tests the speed of the REAL arithmetic software routines. }
{$A+,B-,D-,E-,F-,G-,I-,L-,N-,O-,R-,S-,V-,X-}
USES Time;
VAR L: INTEGER;
I, J, ExecutionTime,
StorageTime, StorageTime2,
StorageTime3, Start: LONGINT;
X, Y, Z: REAL;
A, B, C: ARRAY [1..2900] OF REAL;
D: ARRAY [1..2900] OF LONGINT;
FUNCTION Draw: INTEGER;
BEGIN
IF Random < 0.5 THEN
Draw := -1
ELSE
Draw := 1;
END;
BEGIN
WriteLn;
WriteLn ('Time for basic arithmetic functions');
WriteLn;
Write ('Operation │ Time TP ');
{$IFDEF VER55}
Write ('5.5');
{$ENDIF}
{$IFDEF VER50}
Write ('5.0');
{$ENDIF}
{$IFDEF VER60}
Write ('6.0');
{$ENDIF}
{$IFDEF VER70}
Write ('7.0');
{$ENDIF}
WriteLn;
WriteLn ('──────────────────────┼───────────────');
RandSeed := 13;
Write ('Please wait! Initializing ...');
FOR L := 1 TO 2900 DO BEGIN
A [L] := Exp (Random * 80-40);
END;
FOR L := 1 TO 2900 DO BEGIN
B [L] := Exp (Random * 8.8-4.4) * Draw;
END;
FOR L := 1 TO 2900 DO BEGIN
C [L] := Exp (Random * 30 - 15) * Draw;
END;
FOR L := 1 TO 2900 DO BEGIN
D [L] := round (C[L]);
IF D [L] = 0 THEN
Inc (D[L]);
END;
Write (#8#8#8#8#8#8#8#8#8#8#8#8#8#8#8#8#8#8#8#8#8#8#8#8#8#8#8#8#8#8#8#8);
Start := Clock;
FOR L := 1 TO 2900 DO BEGIN
I := J;
END;
StorageTime3 := Clock - Start;
Start := Clock;
FOR L := 1 TO 2900 DO BEGIN
Y := X;
END;
StorageTime := Clock - Start;
Start := Clock;
FOR L := 1 TO 2900 DO BEGIN
Y := X;
X := Y;
END;
StorageTime2 := Round (0.75*(Clock - Start));
Start := Clock;
FOR L := 1 TO 2900 DO BEGIN
I := (D [L] * D [2901-L]);
END;
ExecutionTime := Clock - Start - StorageTime3;
WriteLn ('LONG-Mul │', ExecutionTime/2.9:11:1, ' µs');
Start := Clock;
FOR L := 1 TO 2900 DO BEGIN
I := (D [L] DIV D [2901-L]);
END;
ExecutionTime := Clock - Start - StorageTime3;
WriteLn ('LONG-Div │', ExecutionTime/2.9:11:1, ' µs');
Start := Clock;
FOR L := 1 TO 2900 DO BEGIN
I := Abs (D [L]);
END;
ExecutionTime := Clock - Start - StorageTime3;
WriteLn ('LONG-Abs │', ExecutionTime/2.9:11:1, ' µs');
Start := Clock;
FOR L := 1 TO 2900 DO BEGIN
Y := D [L];
END;
ExecutionTime := Clock - Start - StorageTime;
WriteLn ('REAL-Float │', ExecutionTime/2.9:11:1, ' µs');
Start := Clock;
FOR L := 1 TO 2900 DO BEGIN
Y := (C [L] + C [2901-L]);
END;
ExecutionTime := Clock - Start - StorageTime2;
WriteLn ('REAL-Add │', ExecutionTime/2.9:11:1, ' µs');
Start := Clock;
FOR L := 1 TO 2900 DO BEGIN
Y := (C [L] - C [2901-L]);
END;
ExecutionTime := Clock - Start - StorageTime2;
WriteLn ('REAL-Sub │', ExecutionTime/2.9:11:1, ' µs');
Start := Clock;
FOR L := 1 TO 2900 DO BEGIN
Y := (C [L] * C [2901-L]);
END;
ExecutionTime := Clock - Start - StorageTime2;
WriteLn ('REAL-Mul │', ExecutionTime/2.9:11:1, ' µs');
FOR L := 1 TO 2900 DO BEGIN
D [L] := D [L] DIV 7440;
END;
Start := Clock;
FOR L := 1 TO 2900 DO BEGIN
Y := (C [L] * D [2901-L]);
END;
ExecutionTime := Clock - Start - StorageTime2;
WriteLn ('REAL-Mul (Short) │', ExecutionTime/2.9:11:1, ' µs');
Start := Clock;
FOR L := 1 TO 2900 DO BEGIN
Y := (C [L] / C [2901-L]);
END;
ExecutionTime := Clock - Start - StorageTime2;
WriteLn ('REAL-Div │', ExecutionTime/2.9:11:1, ' µs');
Start := Clock;
FOR L := 1 TO 2900 DO BEGIN
Y := Sqr(C [L]);
END;
ExecutionTime := Clock - Start - StorageTime;
WriteLn ('REAL-Sqr │', ExecutionTime/2.9:11:1, ' µs');
FOR L := 1 TO 2900 DO BEGIN
C [L] := D [L];
END;
Start := Clock;
FOR L := 1 TO 2900 DO BEGIN
Y := Sqr(C [L]);
END;
ExecutionTime := Clock - Start - StorageTime;
WriteLn ('REAL-Sqr (Short) │', ExecutionTime/2.9:11:1, ' µs');
FOR L := 1 TO 2900 DO BEGIN
C [L] := Exp (Random * 20 - 10) * Draw;
END;
Start := Clock;
FOR L := 1 TO 2900 DO BEGIN
Y := Int ( C[L]);
END;
ExecutionTime := Clock - Start - StorageTime;
WriteLn ('REAL-Int │', ExecutionTime/2.9:11:1, ' µs');
Start := Clock;
FOR L := 1 TO 2900 DO BEGIN
Y := Frac (C [L]);
END;
ExecutionTime := Clock - Start - StorageTime;
WriteLn ('REAL-Frac │', ExecutionTime/2.9:11:1, ' µs');
Start := Clock;
FOR L := 1 TO 2900 DO BEGIN
I := Trunc (C [L]);
END;
ExecutionTime := Clock - Start - StorageTime3;
WriteLn ('REAL-Trunc │', ExecutionTime/2.9:11:1, ' µs');
Start := Clock;
FOR L := 1 TO 2900 DO BEGIN
I := Round (C [L]);
END;
ExecutionTime := Clock - Start - StorageTime3;
WriteLn ('REAL-Round │', ExecutionTime/2.9:11:1, ' µs');
Start := Clock;
FOR L := 1 TO 2900 DO BEGIN
Y := Sqrt (A [L]);
END;
ExecutionTime := Clock - Start - StorageTime;
WriteLn ('REAL-Sqrt │', ExecutionTime/2.9:11:1, ' µs');
Start := Clock;
FOR L := 1 TO 2900 DO BEGIN
Y := Ln (A [L]);
END;
ExecutionTime := Clock - Start - StorageTime;
WriteLn ('REAL-Ln │', ExecutionTime/2.9:11:1, ' µs');
Start := Clock;
FOR L := 1 TO 2900 DO BEGIN
Y := Exp (B [L]);
END;
ExecutionTime := Clock - Start - StorageTime;
WriteLn ('REAL-Exp │', ExecutionTime/2.9:11:1, ' µs');
Start := Clock;
FOR L := 1 TO 2900 DO BEGIN
Y := Sin (B[L]);
END;
ExecutionTime := Clock - Start - StorageTime;
WriteLn ('REAL-Sin │', ExecutionTime/2.9:11:1, ' µs');
Start := Clock;
FOR L := 1 TO 2900 DO BEGIN
Y := Cos (B[L]);
END;
ExecutionTime := Clock - Start - StorageTime;
WriteLn ('REAL-Cos │', ExecutionTime/2.9:11:1, ' µs');
Start := Clock;
FOR L := 1 TO 2900 DO BEGIN
Y := ArcTan (C[L]);
END;
ExecutionTime := Clock - Start - StorageTime;
WriteLn ('REAL-ArcTan │', ExecutionTime/2.9:11:1, ' µs');
END. { AriTest }