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[/] [or1k/] [trunk/] [rtems-20020807/] [cpukit/] [score/] [cpu/] [sh/] [asm.h] - Rev 1026
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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 %. * * Authors: Ralf Corsepius (corsepiu@faw.uni-ulm.de) and * Bernd Becker (becker@faw.uni-ulm.de) * * 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) 1997-1998, FAW Ulm, Germany * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * * * COPYRIGHT (c) 1998-2001. * On-Line Applications Research Corporation (OAR). * * The license and distribution terms for this file may be * found in the file LICENSE in this distribution or at * http://www.OARcorp.com/rtems/license.html. * * asm.h,v 1.5 2001/10/12 17:46:47 joel Exp */ #ifndef __CPU_SH_ASM_h #define __CPU_SH_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/sh.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 r0 REG (r0) #define r1 REG (r1) #define r2 REG (r2) #define r3 REG (r3) #define r4 REG (r4) #define r5 REG (r5) #define r6 REG (r6) #define r7 REG (r7) #define r8 REG (r8) #define r9 REG (r9) #define r10 REG (r10) #define r11 REG (r11) #define r12 REG (r12) #define r13 REG (r13) #define r14 REG (r14) #define r15 REG (r15) #define vbr REG (vbr) #define gbr REG (gbr) #define pr REG (pr) #define mach REG (mach) #define macl REG (macl) #define sr REG (sr) #define pc REG (pc) /* * 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) .global SYM (sym) #define EXTERN(sym) .global SYM (sym) #endif
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