-- FXF2A00.A
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-- FXF2A00.A
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--
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--
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-- Grant of Unlimited Rights
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-- Grant of Unlimited Rights
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--
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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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-- 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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-- 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 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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-- 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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-- 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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-- 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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-- 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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-- 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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-- any manner and for any purpose whatsoever, and to have or permit others
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-- to do so.
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-- to do so.
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--
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--
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-- DISCLAIMER
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-- DISCLAIMER
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--
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--
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-- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
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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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-- 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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-- 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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-- 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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-- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
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-- PARTICULAR PURPOSE OF SAID MATERIAL.
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-- PARTICULAR PURPOSE OF SAID MATERIAL.
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--*
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--*
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--
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--
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-- FOUNDATION DESCRIPTION:
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-- FOUNDATION DESCRIPTION:
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-- This foundation declares supporting objects, types and a generic
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-- This foundation declares supporting objects, types and a generic
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-- function for testing decimal fixed point operations.
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-- function for testing decimal fixed point operations.
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--
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--
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-- The generic function contains a loop which steps through two arrays:
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-- The generic function contains a loop which steps through two arrays:
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-- one of binary operations and one of operands. For each iteration, the
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-- one of binary operations and one of operands. For each iteration, the
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-- current operation is performed on the current operand and a variable
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-- current operation is performed on the current operand and a variable
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-- "Result" e.g.:
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-- "Result" e.g.:
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--
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--
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-- Result := Operation(2)(Operand(3), Result);
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-- Result := Operation(2)(Operand(3), Result);
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--
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--
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-- The result of each operation is cumulated in Result and returned to
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-- The result of each operation is cumulated in Result and returned to
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-- the caller when the loop completes.
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-- the caller when the loop completes.
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--
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--
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-- CHANGE HISTORY:
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-- CHANGE HISTORY:
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-- 12 Mar 96 SAIC Prerelease version for ACVC 2.1.
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-- 12 Mar 96 SAIC Prerelease version for ACVC 2.1.
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--
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--
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--!
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--!
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package FXF2A00 is
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package FXF2A00 is
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Loop_Count : constant := 30000; -- # test iterations.
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Loop_Count : constant := 30000; -- # test iterations.
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Optr_Count : constant := 6; -- # operations in op sequence.
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Optr_Count : constant := 6; -- # operations in op sequence.
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Opnd_Count : constant := 5; -- # different operands.
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Opnd_Count : constant := 5; -- # different operands.
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type Loop_Range is range 1 .. Loop_Count; -- range 1 .. 30000.
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type Loop_Range is range 1 .. Loop_Count; -- range 1 .. 30000.
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type Optr_Range is mod Optr_Count; -- range 0 .. 5.
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type Optr_Range is mod Optr_Count; -- range 0 .. 5.
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type Opnd_Range is mod Opnd_Count; -- range 0 .. 4.
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type Opnd_Range is mod Opnd_Count; -- range 0 .. 4.
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generic
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generic
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type Decimal_Fixed is delta <> digits <>;
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type Decimal_Fixed is delta <> digits <>;
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type Operator_Ptr is access
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type Operator_Ptr is access
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function (L, R : Decimal_Fixed) return Decimal_Fixed;
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function (L, R : Decimal_Fixed) return Decimal_Fixed;
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type Operator_Table is array (Optr_Range) of Operator_Ptr;
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type Operator_Table is array (Optr_Range) of Operator_Ptr;
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type Operand_Table is array (Opnd_Range) of Decimal_Fixed;
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type Operand_Table is array (Opnd_Range) of Decimal_Fixed;
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function Operations_Loop (Initial : Decimal_Fixed;
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function Operations_Loop (Initial : Decimal_Fixed;
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Operator: Operator_Table;
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Operator: Operator_Table;
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Operand : Operand_Table) return Decimal_Fixed;
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Operand : Operand_Table) return Decimal_Fixed;
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end FXF2A00;
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end FXF2A00;
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--==================================================================--
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--==================================================================--
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package body FXF2A00 is
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package body FXF2A00 is
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function Operations_Loop (Initial : Decimal_Fixed;
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function Operations_Loop (Initial : Decimal_Fixed;
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Operator: Operator_Table;
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Operator: Operator_Table;
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Operand : Operand_Table) return Decimal_Fixed is
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Operand : Operand_Table) return Decimal_Fixed is
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Result : Decimal_Fixed := Initial; -- Cumulator.
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Result : Decimal_Fixed := Initial; -- Cumulator.
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Optr_Index : Optr_Range := 0; -- Index into operations table.
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Optr_Index : Optr_Range := 0; -- Index into operations table.
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Opnd_Index : Opnd_Range := 0; -- Index into operand table.
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Opnd_Index : Opnd_Range := 0; -- Index into operand table.
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begin
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begin
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for Count in Loop_Range loop
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for Count in Loop_Range loop
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Result := Operator(Optr_Index) (Result, Operand(Opnd_Index));
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Result := Operator(Optr_Index) (Result, Operand(Opnd_Index));
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Optr_Index := Optr_Index + 1; -- Modular addition.
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Optr_Index := Optr_Index + 1; -- Modular addition.
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Opnd_Index := Opnd_Index + 1; -- Modular addition.
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Opnd_Index := Opnd_Index + 1; -- Modular addition.
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end loop;
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end loop;
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return Result;
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return Result;
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end Operations_Loop;
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end Operations_Loop;
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end FXF2A00;
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end FXF2A00;
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