1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
|
-- 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;
|
