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/*  asm.h

 *

 *  This include file attempts to address the problems

 *  caused by incompatible flavors of assemblers and

 *  toolsets.  It primarily addresses variations in the

 *  use of leading underscores on symbols and the requirement

 *  that register names be preceded by a %.

 *

 *

 *  NOTE: The spacing in the use of these macros

 *        is critical to them working as advertised.

 *

 *  COPYRIGHT:

 *

 *  This file is based on similar code found in newlib available

 *  from ftp.cygnus.com.  The file which was used had no copyright

 *  notice.  This file is freely distributable as long as the source

 *  of the file is noted.  This file is:

 *

 *  COPYRIGHT (c) 1994-1997.

 *  On-Line Applications Research Corporation (OAR).

 *

 *  $Id: asm.h,v 1.2 2001-09-27 11:59:28 chris Exp $

 */

#ifndef __NO_CPU_ASM_h

#define __NO_CPU_ASM_h

/*

 *  Indicate we are in an assembly file and get the basic CPU definitions.

 */

#ifndef ASM

#define ASM

#endif

#include <rtems/score/targopts.h>

#include <rtems/score/no_cpu.h>

/*

 *  Recent versions of GNU cpp define variables which indicate the

 *  need for underscores and percents.  If not using GNU cpp or

 *  the version does not support this, then you will obviously

 *  have to define these as appropriate.

 */

#ifndef __USER_LABEL_PREFIX__

#define __USER_LABEL_PREFIX__ _

#endif

#ifndef __REGISTER_PREFIX__

#define __REGISTER_PREFIX__

#endif

/* ANSI concatenation macros.  */

#define CONCAT1(a, b) CONCAT2(a, b)

#define CONCAT2(a, b) a ## b

/* Use the right prefix for global labels.  */

#define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__, x)

/* Use the right prefix for registers.  */

#define REG(x) CONCAT1 (__REGISTER_PREFIX__, x)

/*

 *  define macros for all of the registers on this CPU

 *

 *  EXAMPLE:     #define d0 REG (d0)

 */

/*

 *  Define macros to handle section beginning and ends.

 */

#define BEGIN_CODE_DCL .text

#define END_CODE_DCL

#define BEGIN_DATA_DCL .data

#define END_DATA_DCL

#define BEGIN_CODE .text

#define END_CODE

#define BEGIN_DATA

#define END_DATA

#define BEGIN_BSS

#define END_BSS

#define END

/*

 *  Following must be tailor for a particular flavor of the C compiler.

 *  They may need to put underscores in front of the symbols.

 */

#define PUBLIC(sym) .globl SYM (sym)

#define EXTERN(sym) .globl SYM (sym)

#endif

/* end of include file */