| -- C46024A.ADA |
| |
| -- Grant of Unlimited Rights |
| -- |
| -- Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687, |
| -- F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained |
| -- unlimited rights in the software and documentation contained herein. |
| -- Unlimited rights are defined in DFAR 252.227-7013(a)(19). By making |
| -- this public release, the Government intends to confer upon all |
| -- recipients unlimited rights equal to those held by the Government. |
| -- These rights include rights to use, duplicate, release or disclose the |
| -- released technical data and computer software in whole or in part, in |
| -- any manner and for any purpose whatsoever, and to have or permit others |
| -- to do so. |
| -- |
| -- DISCLAIMER |
| -- |
| -- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR |
| -- DISCLOSED ARE AS IS. THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED |
| -- WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE |
| -- SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE |
| -- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A |
| -- PARTICULAR PURPOSE OF SAID MATERIAL. |
| --* |
| -- OBJECTIVE: |
| -- CHECK FLOATING POINT CONVERSIONS WHEN THE TARGET TYPE IS A |
| -- FIXED POINT TYPE, FOR DIGITS 5. |
| |
| -- HISTORY: |
| -- JET 02/19/88 CREATED ORIGINAL TEST. |
| |
| WITH REPORT; USE REPORT; |
| |
| PROCEDURE C46024A IS |
| |
| TYPE FLOAT5 IS DIGITS 5; |
| TYPE FIX1 IS DELTA 2#0.01# RANGE -16#20.0# .. 16#20.0#; |
| TYPE FIX2 IS DELTA 2#0.0001# RANGE -16#80.0# .. 16#80.0#; |
| TYPE FIX3 IS DELTA 2#0.000001# RANGE -16#200.0# .. 16#200.0#; |
| |
| F5, F5A, F5B : FLOAT5; |
| |
| GENERIC |
| TYPE F IS DELTA <>; |
| FUNCTION IDENTG (A : F) RETURN F; |
| |
| FUNCTION IDENTG (A : F) RETURN F IS |
| BEGIN |
| RETURN A + F(IDENT_INT(0)); |
| END IDENTG; |
| |
| FUNCTION IDENT1 IS NEW IDENTG(FIX1); |
| FUNCTION IDENT2 IS NEW IDENTG(FIX2); |
| FUNCTION IDENT3 IS NEW IDENTG(FIX3); |
| |
| BEGIN |
| TEST ("C46024A", "CHECK FLOATING POINT CONVERSIONS WHEN THE " & |
| "TARGET TYPE IS A FIXED POINT TYPE, FOR " & |
| "5-DIGIT PRECISION"); |
| |
| IF FIX1(FLOAT5'(2#0.1000_0000_0000_0000_00#E-1)) /= |
| IDENT1(2#0.01#) THEN |
| FAILED ("INCORRECT RESULT FROM CONVERSION (1)"); |
| END IF; |
| |
| IF FIX1(FLOAT5'(-2#0.1111_1110_0000_0000_00#E5)) /= |
| IDENT1(-2#1_1111.11#) THEN |
| FAILED ("INCORRECT RESULT FROM CONVERSION (2)"); |
| END IF; |
| |
| IF FIX1(FLOAT5'(-2#0.1010_0111_1111_1111_11#E4)) < |
| IDENT1(-2#1010.10#) OR |
| FIX1(FLOAT5'(-2#0.1010_0111_1111_1111_11#E4)) > |
| IDENT1(-2#1010.01#) THEN |
| FAILED ("INCORRECT RESULT FROM CONVERSION (3)"); |
| END IF; |
| |
| IF FIX2(FLOAT5'(-2#0.1000_0000_0000_0000_00#E-3)) /= |
| IDENT2(-2#0.0001#) THEN |
| FAILED ("INCORRECT RESULT FROM CONVERSION (4)"); |
| END IF; |
| |
| IF FIX2(FLOAT5'(2#0.1111_1111_1110_0000_00#E7)) /= |
| IDENT2(2#111_1111.1111#) THEN |
| FAILED ("INCORRECT RESULT FROM CONVERSION (5)"); |
| END IF; |
| |
| F5 := 2#0.1010_1010_1010_1010_10#E5; |
| IF FIX2(F5) < IDENT2(2#1_0101.0101#) OR |
| FIX2(F5) > IDENT2(2#1_0101.0110#) THEN |
| FAILED ("INCORRECT RESULT FROM CONVERSION (6)"); |
| END IF; |
| |
| IF FIX3(FLOAT5'(2#0.1000_0000_0000_0000_00#E-5)) /= |
| IDENT3(2#0.000001#) THEN |
| FAILED ("INCORRECT RESULT FROM CONVERSION (7)"); |
| END IF; |
| |
| IF FIX3(FLOAT5'(-2#0.1111_1111_1111_1110_00#E9)) /= |
| IDENT3(-2#1_1111_1111.1111_11#) THEN |
| FAILED ("INCORRECT RESULT FROM CONVERSION (8)"); |
| END IF; |
| |
| F5 := -2#0.1010_1010_1010_1010_10#E8; |
| IF FIX3(F5) < IDENT3(-2#1010_1010.1010_11#) OR |
| FIX3(F5) > IDENT3(-2#1010_1010.1010_10#) THEN |
| FAILED ("INCORRECT RESULT FROM CONVERSION (9)"); |
| END IF; |
| |
| F5A := 2#0.1010_1010_1010_1010_10#E4; |
| F5B := 2#0.1010_1010_1010_1010_10#E5; |
| |
| IF FIX1(F5A) = IDENT1(2#1010.11#) AND |
| FIX1(-F5A) = IDENT1(-2#1010.11#) AND |
| FIX1(F5B) = IDENT1(2#1_0101.01#) AND |
| FIX1(-F5B) = IDENT1(-2#1_0101.01#) THEN |
| COMMENT ("CONVERSION ROUNDS TO NEAREST"); |
| ELSIF FIX1(F5A) = IDENT1(2#1010.10#) AND |
| FIX1(-F5B) = IDENT1(-2#1_0101.10#) THEN |
| COMMENT ("CONVERSION ROUNDS TO LEAST FIXED-POINT VALUE"); |
| ELSIF FIX1(F5B) = IDENT1(2#1_0101.10#) AND |
| FIX1(-F5A) = IDENT1(-2#1010.10#) THEN |
| COMMENT ("CONVERSION ROUNDS TO GREATEST FIXED-POINT VALUE"); |
| ELSIF FIX1(F5A) = IDENT1(2#1010.10#) AND |
| FIX1(-F5A) = IDENT1(-2#1010.10#) THEN |
| COMMENT ("CONVERSION ROUNDS TOWARD ZERO"); |
| ELSIF FIX1(F5B) = IDENT1(2#1_0101.10#) AND |
| FIX1(-F5B) = IDENT1(-2#1_0101.10#) THEN |
| COMMENT ("CONVERSION ROUNDS AWAY FROM ZERO"); |
| ELSE |
| COMMENT ("UNABLE TO DETERMINE CONVERSION PATTERN"); |
| END IF; |
| |
| RESULT; |
| |
| END C46024A; |