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jlechner |
-- C46024A.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 FLOATING POINT CONVERSIONS WHEN THE TARGET TYPE IS A
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-- FIXED POINT TYPE, FOR DIGITS 5.
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-- HISTORY:
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-- JET 02/19/88 CREATED ORIGINAL TEST.
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WITH REPORT; USE REPORT;
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PROCEDURE C46024A IS
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TYPE FLOAT5 IS DIGITS 5;
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TYPE FIX1 IS DELTA 2#0.01# RANGE -16#20.0# .. 16#20.0#;
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TYPE FIX2 IS DELTA 2#0.0001# RANGE -16#80.0# .. 16#80.0#;
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TYPE FIX3 IS DELTA 2#0.000001# RANGE -16#200.0# .. 16#200.0#;
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F5, F5A, F5B : FLOAT5;
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GENERIC
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TYPE F IS DELTA <>;
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FUNCTION IDENTG (A : F) RETURN F;
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FUNCTION IDENTG (A : F) RETURN F IS
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BEGIN
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RETURN A + F(IDENT_INT(0));
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END IDENTG;
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FUNCTION IDENT1 IS NEW IDENTG(FIX1);
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FUNCTION IDENT2 IS NEW IDENTG(FIX2);
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FUNCTION IDENT3 IS NEW IDENTG(FIX3);
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BEGIN
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TEST ("C46024A", "CHECK FLOATING POINT CONVERSIONS WHEN THE " &
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"TARGET TYPE IS A FIXED POINT TYPE, FOR " &
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"5-DIGIT PRECISION");
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IF FIX1(FLOAT5'(2#0.1000_0000_0000_0000_00#E-1)) /=
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IDENT1(2#0.01#) THEN
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FAILED ("INCORRECT RESULT FROM CONVERSION (1)");
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END IF;
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IF FIX1(FLOAT5'(-2#0.1111_1110_0000_0000_00#E5)) /=
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IDENT1(-2#1_1111.11#) THEN
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FAILED ("INCORRECT RESULT FROM CONVERSION (2)");
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END IF;
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IF FIX1(FLOAT5'(-2#0.1010_0111_1111_1111_11#E4)) <
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IDENT1(-2#1010.10#) OR
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FIX1(FLOAT5'(-2#0.1010_0111_1111_1111_11#E4)) >
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IDENT1(-2#1010.01#) THEN
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FAILED ("INCORRECT RESULT FROM CONVERSION (3)");
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END IF;
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IF FIX2(FLOAT5'(-2#0.1000_0000_0000_0000_00#E-3)) /=
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IDENT2(-2#0.0001#) THEN
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FAILED ("INCORRECT RESULT FROM CONVERSION (4)");
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END IF;
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IF FIX2(FLOAT5'(2#0.1111_1111_1110_0000_00#E7)) /=
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IDENT2(2#111_1111.1111#) THEN
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FAILED ("INCORRECT RESULT FROM CONVERSION (5)");
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END IF;
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F5 := 2#0.1010_1010_1010_1010_10#E5;
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IF FIX2(F5) < IDENT2(2#1_0101.0101#) OR
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FIX2(F5) > IDENT2(2#1_0101.0110#) THEN
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FAILED ("INCORRECT RESULT FROM CONVERSION (6)");
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END IF;
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IF FIX3(FLOAT5'(2#0.1000_0000_0000_0000_00#E-5)) /=
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IDENT3(2#0.000001#) THEN
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FAILED ("INCORRECT RESULT FROM CONVERSION (7)");
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END IF;
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IF FIX3(FLOAT5'(-2#0.1111_1111_1111_1110_00#E9)) /=
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IDENT3(-2#1_1111_1111.1111_11#) THEN
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FAILED ("INCORRECT RESULT FROM CONVERSION (8)");
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END IF;
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F5 := -2#0.1010_1010_1010_1010_10#E8;
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IF FIX3(F5) < IDENT3(-2#1010_1010.1010_11#) OR
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FIX3(F5) > IDENT3(-2#1010_1010.1010_10#) THEN
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FAILED ("INCORRECT RESULT FROM CONVERSION (9)");
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END IF;
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F5A := 2#0.1010_1010_1010_1010_10#E4;
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F5B := 2#0.1010_1010_1010_1010_10#E5;
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IF FIX1(F5A) = IDENT1(2#1010.11#) AND
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FIX1(-F5A) = IDENT1(-2#1010.11#) AND
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FIX1(F5B) = IDENT1(2#1_0101.01#) AND
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FIX1(-F5B) = IDENT1(-2#1_0101.01#) THEN
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COMMENT ("CONVERSION ROUNDS TO NEAREST");
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ELSIF FIX1(F5A) = IDENT1(2#1010.10#) AND
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FIX1(-F5B) = IDENT1(-2#1_0101.10#) THEN
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COMMENT ("CONVERSION ROUNDS TO LEAST FIXED-POINT VALUE");
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ELSIF FIX1(F5B) = IDENT1(2#1_0101.10#) AND
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FIX1(-F5A) = IDENT1(-2#1010.10#) THEN
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COMMENT ("CONVERSION ROUNDS TO GREATEST FIXED-POINT VALUE");
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ELSIF FIX1(F5A) = IDENT1(2#1010.10#) AND
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FIX1(-F5A) = IDENT1(-2#1010.10#) THEN
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COMMENT ("CONVERSION ROUNDS TOWARD ZERO");
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ELSIF FIX1(F5B) = IDENT1(2#1_0101.10#) AND
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FIX1(-F5B) = IDENT1(-2#1_0101.10#) THEN
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COMMENT ("CONVERSION ROUNDS AWAY FROM ZERO");
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ELSE
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COMMENT ("UNABLE TO DETERMINE CONVERSION PATTERN");
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END IF;
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RESULT;
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END C46024A;
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