From ac7d5ef06a6d6e8d84abbd1f0b82162725f98326 Mon Sep 17 00:00:00 2001 From: Joel Sherrill Date: Thu, 11 May 1995 17:39:37 +0000 Subject: Initial revision --- cpukit/score/include/rtems/score/address.h | 122 +++++++++++++++++++++++++++++ 1 file changed, 122 insertions(+) create mode 100644 cpukit/score/include/rtems/score/address.h (limited to 'cpukit/score/include/rtems/score/address.h') diff --git a/cpukit/score/include/rtems/score/address.h b/cpukit/score/include/rtems/score/address.h new file mode 100644 index 0000000000..0abd113f63 --- /dev/null +++ b/cpukit/score/include/rtems/score/address.h @@ -0,0 +1,122 @@ +/* address.h + * + * This include file contains the information required to manipulate + * physical addresses. + * + * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. + * On-Line Applications Research Corporation (OAR). + * All rights assigned to U.S. Government, 1994. + * + * This material may be reproduced by or for the U.S. Government pursuant + * to the copyright license under the clause at DFARS 252.227-7013. This + * notice must appear in all copies of this file and its derivatives. + * + * $Id$ + */ + +#ifndef __RTEMS_ADDRESSES_h +#define __RTEMS_ADDRESSES_h + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * _Addresses_Add_offset + * + * DESCRIPTION: + * + * This function is used to add an offset to a base address. + * It returns the resulting address. This address is typically + * converted to an access type before being used further. + */ + +STATIC INLINE void *_Addresses_Add_offset ( + void *base, + unsigned32 offset +); + +/* + * _Addresses_Subtract_offset + * + * DESCRIPTION: + * + * This function is used to subtract an offset from a base + * address. It returns the resulting address. This address is + * typically converted to an access type before being used further. + */ + +STATIC INLINE void *_Addresses_Subtract_offset( + void *base, + unsigned32 offset +); + +/* + * _Addresses_Add + * + * DESCRIPTION: + * + * This function is used to add two addresses. It returns the + * resulting address. This address is typically converted to an + * access type before being used further. + */ + +STATIC INLINE void *_Addresses_Add ( + void *left, + void *right +); + +/* + * _Addresses_Subtract + * + * DESCRIPTION: + * + * This function is used to subtract two addresses. It returns the + * resulting offset. + */ + +STATIC INLINE unsigned32 _Addresses_Subtract ( + void *left, + void *right +); + +/* + * _Addresses_Is_aligned + * + * DESCRIPTION: + * + * This function returns TRUE if the given address is correctly + * aligned for this processor and FALSE otherwise. Proper alignment + * is based on correctness and efficiency. + */ + +STATIC INLINE boolean _Addresses_Is_aligned ( + void *address +); + +/* + * _Addresses_Is_in_range + * + * DESCRIPTION: + * + * This function returns TRUE if the given address is within the + * memory range specified and FALSE otherwise. base is the address + * of the first byte in the memory range and limit is the address + * of the last byte in the memory range. The base address is + * assumed to be lower than the limit address. + */ + +STATIC INLINE boolean _Addresses_Is_in_range ( + void *address, + void *base, + void *limit +); + +#include + +#ifdef __cplusplus +} +#endif + +#endif +/* end of include file */ -- cgit v1.2.3