+++ /dev/null
-------------------------------------------------------------------------------
--- --
--- GNAT COMPILER COMPONENTS --
--- --
--- E X P _ F I X D --
--- --
--- S p e c --
--- --
--- $Revision: 1.1.16.2 $
--- --
--- Copyright (C) 1992,1993,1994 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 2, 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 COPYING. If not, write --
--- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
--- MA 02111-1307, USA. --
--- --
--- 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 multplication 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
- -- 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;
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