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/*
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Crown Copyright (c) 1997, 1998
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This TenDRA(r) Computer Program is subject to Copyright
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owned by the United Kingdom Secretary of State for Defence
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acting through the Defence Evaluation and Research Agency
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(DERA). It is made available to Recipients with a
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royalty-free licence for its use, reproduction, transfer
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to other parties and amendment for any purpose not excluding
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product development provided that any such use et cetera
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shall be deemed to be acceptance of the following conditions:-
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(1) Its Recipients shall ensure that this Notice is
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reproduced upon any copies or amended versions of it;
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(2) Any amended version of it shall be clearly marked to
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show both the nature of and the organisation responsible
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for the relevant amendment or amendments;
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(3) Its onward transfer from a recipient to another
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party shall be deemed to be that party's acceptance of
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these conditions;
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(4) DERA gives no warranty or assurance as to its
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quality or suitability for any purpose and DERA accepts
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no liability whatsoever in relation to any use to which
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it may be put.
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*/
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/*
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** INT64_types.h
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**
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** This file defines both signed and unsigned types
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** to be used for 64-bit integer arithmetic in terms
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** of generic 32-bit integer types.
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**
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** In addition, macros are provided to extract the hi-
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** and low-32 bits of data stored using these types.
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**
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*/
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#ifndef __INT64_types_h
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#define __INT64_types_h
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/* Define the generic 32-bit signed and unsigned types */
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#ifdef NATIVE_INT64
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typedef int INT32;
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typedef unsigned int UINT32;
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#else
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typedef long INT32;
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typedef unsigned long UINT32;
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#endif
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/* Define the new types for 64-bit integers */
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/* Installers expect lo32 to be first, and hi32 to be second */
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typedef struct {
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UINT32 lo32;
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INT32 hi32;
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} INT64;
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typedef struct {
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UINT32 lo32;
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UINT32 hi32;
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} UINT64;
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/*
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** 'TDF_INT64' is a type which reflects the fact that both signed
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** and unsigned integers are stored in the same way internally,
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** and that many of the arithmetic operations (such as +, -, *, etc.)
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** do not need to know whether the integer is signed or unsigned.
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**
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** This type allows prototyped functions to be defined in ANSI which
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** implement operations for both signed and unsigned integers.
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**
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*/
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typedef union {
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INT64 s;
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UINT64 u;
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} TDF_INT64;
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/* Macros for extracting the hi- and low-32 bits */
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#define hi_32(X) ((X).s.hi32)
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#define lo_32(X) ((X).s.lo32)
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#define hi_u32(X) ((X).u.hi32)
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#define lo_u32(X) ((X).u.lo32)
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/* Tokens to convert between the parameter representation */
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/* of 64-bit integers, and the structure representation. */
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#define LOCAL(X) ((TDF_INT64) (X))
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#define ULOCAL(X) ((TDF_INT64) (X))
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#define PARAM(X) (( INT64) (X))
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#define UPARAM(X) ((UINT64) (X))
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/* 64-bit constants used in the calculations */
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TDF_INT64 const_0 = {{(INT32) 0, (UINT32) 0}}; /* intialising first element */
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TDF_INT64 const_u0 = {{(INT32) 0, (UINT32) 0}}; /* i.e. a structure of type INT64 */
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TDF_INT64 const_1 = {{(INT32) 1, (UINT32) 0}}; /* least-significant word comes first */
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TDF_INT64 const_u1 = {{(INT32) 1, (UINT32) 0}};
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#endif /* ndef __INT64_types_h */
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