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[/] [openrisc/] [trunk/] [gnu-old/] [gcc-4.2.2/] [gcc/] [testsuite/] [ada/] [acats/] [tests/] [c4/] [c45532e.ada] - Blame information for rev 816

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1 149 jeremybenn
-- C45532E.ADA
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--                             Grant of Unlimited Rights
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--
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--     Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
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--     F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained 
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--     unlimited rights in the software and documentation contained herein.
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--     Unlimited rights are defined in DFAR 252.227-7013(a)(19).  By making 
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--     this public release, the Government intends to confer upon all 
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--     recipients unlimited rights  equal to those held by the Government.  
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--     These rights include rights to use, duplicate, release or disclose the 
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--     released technical data and computer software in whole or in part, in 
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--     any manner and for any purpose whatsoever, and to have or permit others 
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--     to do so.
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--
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--                                    DISCLAIMER
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--
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--     ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
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--     DISCLOSED ARE AS IS.  THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED 
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--     WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
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--     SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE 
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--     OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
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--     PARTICULAR PURPOSE OF SAID MATERIAL.
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--*
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-- OBJECTIVE:
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--     CHECK THAT THE OPERATOR "*" PRODUCES CORRECT RESULTS
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--     FOR FIXED POINT TYPES USING 3 SUBTESTS.
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--       THIS TEST REQUIRES MIN_WORD_LENGTH = 16.
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--       THIS TEST USES VALUES OF DELTA WHICH ARE LESS THAN 0.5.
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--
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--     TEST CASES ARE:
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--       A) THE OPERATOR *, A, B, AND A * B ALL MODEL NUMBERS.
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--       B) THE OPERATOR *, A, B MODEL NUMBERS A * B NOT.
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--       C) THE OPERATOR *, USING NO MODEL NUMBERS.
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--
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--     REPEAT FOR MINIMUM REQUIRED WORD LENGTHS OF 12, 16, 32 AND 48,
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--     WITH RANGE <, =, AND > THAN 1.0 AND
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--     WITH DELTA <, =, AND > THAN 1.0.
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-- HISTORY:
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--     NTW 09/08/86 CREATED ORIGINAL TEST.
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--     RJW 11/05/86 REVISED COMMENTS.
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--     DHH 01/13/88 ADDED APPLICABILITY CRITERIA AND STANDARD HEADER.
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--     RDH 04/27/90 REVISED APPLICABILITY CRITERIA.
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--     BCB 10/03/90 REMOVED APPLICABILITY CRITERIA AND N/A => ERROR
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--                  LINE.  CHANGED EXTENSION FROM '.DEP' TO '.ADA'.
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WITH REPORT;
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PROCEDURE C45532E IS
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     USE REPORT;
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     MIN_WORD_LENGTH : CONSTANT := 16;
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     FULL_SCALE      : CONSTANT := 2 ** (MIN_WORD_LENGTH - 1);
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     FORTH           : CONSTANT := FULL_SCALE / 4;
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     DEL1            : CONSTANT := 0.5 / FULL_SCALE;
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     TYPE FX_0P5 IS DELTA DEL1 * 1 RANGE -0.5 .. 0.5 - DEL1 * 1;
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     TYPE FX_1   IS DELTA DEL1 * 2 RANGE -1.0 .. 1.0 - DEL1 * 2;
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     TYPE FX_2   IS DELTA DEL1 * 4 RANGE -2.0 .. 2.0 - DEL1 * 4;
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BEGIN TEST ("C45532E", "FIXED POINT OPERATOR ""*""" );
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     --------------------------------------------------
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     -- CASE A) THE OPERATOR *, A, B, AND A * B ALL MODEL NUMBERS.
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A:   DECLARE
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          A              : FX_0P5  := 0.0;
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          B              : FX_2    := 0.0;
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          RESULT_VALUE   : FX_1    := 0.0;
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          LOWEST_ACCEPTABLE_VALUE  : FX_1 := FX_1 (0.125);
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          HIGHEST_ACCEPTABLE_VALUE : FX_1 := FX_1 (0.125);
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     BEGIN
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          IF EQUAL (3, 3) THEN
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               A := FX_0P5 (0.25);                -- A MODEL NUMBER
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               B := FX_2   (0.50);                -- A MODEL NUMBER
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          END IF;
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          RESULT_VALUE := FX_1 (A * B);
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          IF    (RESULT_VALUE < LOWEST_ACCEPTABLE_VALUE)
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             OR (RESULT_VALUE > HIGHEST_ACCEPTABLE_VALUE) THEN
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               FAILED ("RESULT OF ""*"" OUTSIDE RESULT MODEL INTERVAL "
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                    &  "WHEN A, B, AND A * B ARE ALL MODEL NUMBERS");
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          END IF;
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     END A;
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     --------------------------------------------------
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     -- CASE B) THE OPERATOR *, A, B MODEL NUMBERS A * B NOT.
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B:   DECLARE
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          A              : FX_0P5  := 0.0;
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          B              : FX_1    := 0.0;
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          RESULT_VALUE   : FX_2    := 0.0;
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          LOW_COUNT     : CONSTANT := FULL_SCALE / 64;
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          HIGH_COUNT    : CONSTANT := LOW_COUNT + 1;
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          LOWEST_ACCEPTABLE_VALUE  :  FX_2
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                                   := FX_2 (4 * DEL1 * LOW_COUNT );
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          HIGHEST_ACCEPTABLE_VALUE :  FX_2
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                                   := FX_2 (4 * DEL1 * HIGH_COUNT);
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     BEGIN
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          IF EQUAL (3, 3) THEN
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               A := FX_0P5 (DEL1 * (FORTH + 1) ); -- A MODEL NUMBER
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               B := FX_1   (DEL1 * (FORTH * 2) ); -- A MODEL NUMBER
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          END IF;
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          RESULT_VALUE := FX_2 (A * B);
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          IF    (RESULT_VALUE < LOWEST_ACCEPTABLE_VALUE)
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             OR (RESULT_VALUE > HIGHEST_ACCEPTABLE_VALUE) THEN
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               FAILED ("RESULT OF ""*"" OUTSIDE RESULT MODEL INTERVAL "
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                    &  "WHEN A, B MODEL NUMBERS A * B NOT");
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          END IF;
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     END B;
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     --------------------------------------------------
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     -- CASE C) THE OPERATOR *, USING NO MODEL NUMBERS
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C:   DECLARE
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          A              : FX_1    := 0.0;
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          B              : FX_1    := 0.0;
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          RESULT_VALUE   : FX_2    := 0.0;
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          LOW_COUNT     : CONSTANT := FULL_SCALE / 128 - 1;
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          HIGH_COUNT    : CONSTANT := FULL_SCALE / 128 + 1;
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          LOWEST_ACCEPTABLE_VALUE  :  FX_2
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                                   := FX_2 (4 * DEL1 * LOW_COUNT );
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          HIGHEST_ACCEPTABLE_VALUE :  FX_2
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                                   := FX_2 (4 * DEL1 * HIGH_COUNT);
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     BEGIN
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          IF EQUAL (3, 3) THEN
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               A := FX_1 (DEL1 * (FORTH + 1) );   -- NOT MODEL NUMBER
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               B := FX_1 (DEL1 * (FORTH - 1) );   -- NOT MODEL NUMBER
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          END IF;
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          RESULT_VALUE := FX_2 (A * B);
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          IF    (RESULT_VALUE < LOWEST_ACCEPTABLE_VALUE)
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             OR (RESULT_VALUE > HIGHEST_ACCEPTABLE_VALUE) THEN
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               FAILED ("RESULT OF ""*"" OUTSIDE RESULT MODEL INTERVAL "
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                    &  "WHEN USING NO MODEL NUMBERS");
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          END IF;
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     END C;
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     --------------------------------------------------
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     RESULT;
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END C45532E;

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