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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [testsuite/] [ada/] [acats/] [tests/] [c4/] [c45532g.ada] - Blame information for rev 294

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1 294 jeremybenn
-- C45532G.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 GREATER THAN OR
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--       EQUAL TO 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 C45532G 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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     RNG1            : CONSTANT := FULL_SCALE * 0.5;
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     TYPE FX_0P5  IS DELTA 0.5 RANGE -RNG1 * 1 .. RNG1 * 1 - 0.5;
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     TYPE FX_1    IS DELTA 1.0 RANGE -RNG1 * 2 .. RNG1 * 2 - 1.0;
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     TYPE FX_RNG1 IS DELTA RNG1
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                    RANGE -RNG1 * FULL_SCALE .. RNG1 * (FULL_SCALE - 1);
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BEGIN TEST ("C45532G", "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_1    := 0.0;
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          RESULT_VALUE   : FX_RNG1 := 0.0;
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          LOWEST_ACCEPTABLE_VALUE
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                         : FX_RNG1 := FX_RNG1 (RNG1 * RNG1 / 4);
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          HIGHEST_ACCEPTABLE_VALUE
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                         : FX_RNG1 := FX_RNG1 (RNG1 * RNG1 / 4);
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     BEGIN
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          IF EQUAL (3, 3) THEN
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               A := FX_0P5 (RNG1 / 2);            -- A MODEL NUMBER
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               B := FX_1   (RNG1 / 2);            -- A MODEL NUMBER
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          END IF;
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          RESULT_VALUE := FX_RNG1 (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_0P5  := 0.0;
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          RESULT_VALUE   : FX_RNG1 := 0.0;
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          LOW_COUNT     : CONSTANT := FULL_SCALE / 16;
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          HIGH_COUNT    : CONSTANT := LOW_COUNT + 1;
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          LOWEST_ACCEPTABLE_VALUE  :  FX_RNG1
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                                   := FX_RNG1 (RNG1 * LOW_COUNT);
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          HIGHEST_ACCEPTABLE_VALUE :  FX_RNG1
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                                   := FX_RNG1 (RNG1 * HIGH_COUNT);
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     BEGIN
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          IF EQUAL (3, 3) THEN
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               A := FX_0P5 (0.5 * (FORTH + 1) );  -- A MODEL NUMBER
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               B := FX_0P5 (0.5 * (FORTH * 2) );  -- A MODEL NUMBER
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          END IF;
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          RESULT_VALUE := FX_RNG1 (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_RNG1    := 0.0;
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          LOW_COUNT     : CONSTANT := FULL_SCALE / 32 - 1;
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          HIGH_COUNT    : CONSTANT := FULL_SCALE / 32 + 1;
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          LOWEST_ACCEPTABLE_VALUE  :  FX_RNG1
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                                   := FX_RNG1 (RNG1 * LOW_COUNT);
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          HIGHEST_ACCEPTABLE_VALUE :  FX_RNG1
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                                   := FX_RNG1 (RNG1 * HIGH_COUNT);
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     BEGIN
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          IF EQUAL (3, 3) THEN
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               A := FX_1 (0.5 * (FORTH + 1) );    -- NOT MODEL NUMBER
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               B := FX_1 (0.5 * (FORTH - 1) );    -- NOT MODEL NUMBER
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          END IF;
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          RESULT_VALUE := FX_RNG1 (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 C45532G;

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