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+------------------------------------------------------------------------------
+-- --
+-- GNAT COMPILER COMPONENTS --
+-- --
+-- E X P _ F I X D --
+-- --
+-- S p e c --
+-- --
+-- Copyright (C) 1992-2008, Free Software Foundation, Inc. --
+-- --
+-- GNAT is free software; you can redistribute it and/or modify it under --
+-- terms of the GNU General Public License as published by the Free Soft- --
+-- ware Foundation; either version 3, or (at your option) any later ver- --
+-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
+-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
+-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
+-- for more details. You should have received a copy of the GNU General --
+-- Public License distributed with GNAT; see file COPYING3. If not, go to --
+-- http://www.gnu.org/licenses for a complete copy of the license. --
+-- --
+-- GNAT was originally developed by the GNAT team at New York University. --
+-- Extensive contributions were provided by Ada Core Technologies Inc. --
+-- --
+------------------------------------------------------------------------------
+
+-- Expand routines for fixed-point convert, divide and multiply operations
+
+with Types; use Types;
+
+package Exp_Fixd is
+
+ -- General note on universal fixed. In the routines below, a fixed-point
+ -- type is always a specific fixed-point type or universal real, never
+ -- universal fixed. Universal fixed only appears as the result type of a
+ -- division or multiplication and in all such cases, the parent node, which
+ -- must be either a conversion node or a 'Round attribute reference node,
+ -- has the specific type information. In both cases, the parent node is
+ -- removed from the tree, and the appropriate routine in this package is
+ -- called with a multiply or divide node with all types (and also possibly
+ -- the Rounded_Result flag) set.
+
+ ----------------------------
+ -- Fixed-Point Conversion --
+ ----------------------------
+
+ procedure Expand_Convert_Fixed_To_Fixed (N : Node_Id);
+ -- This routine expands the conversion of one fixed-point type to another,
+ -- N is the N_Op_Conversion node with the result and expression types (and
+ -- possibly the Rounded_Result flag) set.
+
+ procedure Expand_Convert_Fixed_To_Float (N : Node_Id);
+ -- This routine expands the conversion from a fixed-point type to a
+ -- floating-point type. N is an N_Type_Conversion node with the result
+ -- and expression types set.
+
+ procedure Expand_Convert_Fixed_To_Integer (N : Node_Id);
+ -- This routine expands the conversion from a fixed-point type to an
+ -- integer type. N is an N_Type_Conversion node with the result and
+ -- operand types set.
+
+ procedure Expand_Convert_Float_To_Fixed (N : Node_Id);
+ -- This routine expands the conversion from a floating-point type to
+ -- a fixed-point type. N is an N_Type_Conversion node with the result
+ -- and operand types (and possibly the Rounded_Result flag) set.
+
+ procedure Expand_Convert_Integer_To_Fixed (N : Node_Id);
+ -- This routine expands the conversion from an integer type to a
+ -- fixed-point type. N is an N_Type_Conversion node with the result
+ -- and operand types (and possibly the Rounded_Result flag) set.
+
+ --------------------------
+ -- Fixed-Point Division --
+ --------------------------
+
+ procedure Expand_Decimal_Divide_Call (N : Node_Id);
+ -- This routine expands a call to the procedure Decimal.Divide. The
+ -- argument N is the N_Function_Call node.
+
+ procedure Expand_Divide_Fixed_By_Fixed_Giving_Fixed (N : Node_Id);
+ -- This routine expands the division between fixed-point types, with
+ -- a fixed-point type result. N is an N_Op_Divide node with operand
+ -- and result types (and possibly the Rounded_Result flag) set. Either
+ -- (but not both) of the operands may be universal real.
+
+ procedure Expand_Divide_Fixed_By_Fixed_Giving_Float (N : Node_Id);
+ -- This routine expands the division between two fixed-point types with
+ -- a floating-point result. N is an N_Op_Divide node with the result
+ -- and operand types set. Either (but not both) of the operands may be
+ -- universal real.
+
+ procedure Expand_Divide_Fixed_By_Fixed_Giving_Integer (N : Node_Id);
+ -- This routine expands the division between two fixed-point types with
+ -- an integer type result. N is an N_Op_Divide node with the result and
+ -- operand types set. Either (but not both) of the operands may be
+ -- universal real.
+
+ procedure Expand_Divide_Fixed_By_Integer_Giving_Fixed (N : Node_Id);
+ -- This routine expands the division between a fixed-point type and
+ -- standard integer type. The result type is the same fixed-point type
+ -- as the operand type. N is an N_Op_Divide node with the result and
+ -- left operand types being the fixed-point type, and the right operand
+ -- type being standard integer (and possibly Rounded_Result set).
+
+ --------------------------------
+ -- Fixed-Point Multiplication --
+ --------------------------------
+
+ procedure Expand_Multiply_Fixed_By_Fixed_Giving_Fixed (N : Node_Id);
+ -- This routine expands the multiplication between fixed-point types
+ -- with a fixed-point type result. N is an N_Op_Multiply node with the
+ -- result and operand types set. Either (but not both) of the operands
+ -- may be universal real.
+
+ procedure Expand_Multiply_Fixed_By_Fixed_Giving_Float (N : Node_Id);
+ -- This routine expands the multiplication between two fixed-point types
+ -- with a floating-point result. N is an N_Op_Multiply node with the
+ -- result and operand types set. Either (but not both) of the operands
+ -- may be universal real.
+
+ procedure Expand_Multiply_Fixed_By_Fixed_Giving_Integer (N : Node_Id);
+ -- This routine expands the multiplication between two fixed-point types
+ -- with an integer result. N is an N_Op_Multiply node with the result
+ -- and operand types set. Either (but not both) of the operands may be
+ -- be universal real.
+
+ procedure Expand_Multiply_Fixed_By_Integer_Giving_Fixed (N : Node_Id);
+ -- This routine expands the multiplication between a fixed-point type and
+ -- a standard integer type. The result type is the same fixed-point type
+ -- as the fixed operand type. N is an N_Op_Multiply node whose result type
+ -- and left operand types are the fixed-point type, and whose right operand
+ -- type is always standard integer.
+
+ procedure Expand_Multiply_Integer_By_Fixed_Giving_Fixed (N : Node_Id);
+ -- This routine expands the multiplication between standard integer and a
+ -- fixed-point type. The result type is the same fixed-point type as the
+ -- fixed operand type. N is an N_Op_Multiply node whose result type
+ -- and right operand types are the fixed-point type, and whose left operand
+ -- type is always standard integer.
+
+end Exp_Fixd;