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 /**
  * @file
  * 
  * @brief Address the Problems Caused by Incompatible Flavor of 
  * Assemblers and Toolsets
  *
  * 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).
  */
 
 #ifndef _RTEMS_ASM_H
 #define _RTEMS_ASM_H
 
 /*
  *  Indicate we are in an assembly file and get the basic CPU definitions.
  */
 
 #ifndef ASM
 #define ASM
 #endif
 #include <rtems/score/cpuopts.h>
 #include <rtems/score/cpu.h>
 
 /**
  * @defgroup RTEMSScoreCPUm68kASM m68k Assembler Support
  *
  * @ingroup RTEMSScoreCPUm68k
  *
  * @brief Motorola 68000 and NXP ColdFire (m68k) Assembler Support
  *
  * @{
  */
 
 /*
  *  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
 
 #include <rtems/concat.h>
 
 /* Use the right prefix for global labels.  */
 
 #define SYM(x) CONCAT0 (__USER_LABEL_PREFIX__, x)
 
 /* Use the right prefix for registers.  */
 
 #define REG(x) CONCAT0 (__REGISTER_PREFIX__, x)
 
 #define d0 REG (d0)
 #define d1 REG (d1)
 #define d2 REG (d2)
 #define d3 REG (d3)
 #define d4 REG (d4)
 #define d5 REG (d5)
 #define d6 REG (d6)
 #define d7 REG (d7)
 #define a0 REG (a0)
 #define a1 REG (a1)
 #define a2 REG (a2)
 #define a3 REG (a3)
 #define a4 REG (a4)
 #define a5 REG (a5)
 #define a6 REG (a6)
 #define a7 REG (a7)
 #define sp REG (sp)
 
 #define msp REG (msp)
 #define usp REG (usp)
 #define isp REG (isp)
 #define sr  REG (sr)
 #define vbr REG (vbr)
 #define dfc REG (dfc)
 #define sfc REG (sfc)
 
 /* mcf52xx special regs */
 #define cacr    REG (cacr)
 #define acr0    REG (acr0)
 #define acr1    REG (acr1)
 #define rambar0 REG (rambar0)
 #define mbar    REG (mbar)
 
 /* additional v4e special regs */
 #define rambar1   REG (rambar1)
 #define macsr     REG (macsr)
 #define acc0      REG (acc0)
 #define acc1      REG (acc1)
 #define acc2      REG (acc2)
 #define acc3      REG (acc3)
 #define accext01  REG (accext01)
 #define accext23  REG (accext23)
 #define mask      REG (mask)
 
 
 #define fp0 REG (fp0)
 #define fp1 REG (fp1)
 #define fp2 REG (fp2)
 #define fp3 REG (fp3)
 #define fp4 REG (fp4)
 #define fp5 REG (fp5)
 #define fp6 REG (fp6)
 #define fp7 REG (fp7)
 
 #define fpc REG (fpc)
 #define fpi REG (fpi)
 #define fps REG (fps)
 #define fpsr REG (fpsr)
 
 
 /*
  *  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 .data
 #define END_DATA
 #define BEGIN_BSS .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

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