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[/] [or1k/] [trunk/] [rtems/] [c/] [src/] [exec/] [score/] [cpu/] [i960/] [asm.h] - Rev 208
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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 11:59:27 chris Exp $ */ #ifndef __i960_ASM_h #define __i960_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/i960.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 g0 REG (g0) #define g1 REG (g1) #define g2 REG (g2) #define g3 REG (g3) #define g4 REG (g4) #define g5 REG (g5) #define g6 REG (g6) #define g7 REG (g7) #define g8 REG (g8) #define g9 REG (g9) #define g10 REG (g10) #define g11 REG (g11) #define g12 REG (g12) #define g13 REG (g13) #define g14 REG (g14) #define g15 REG (g15) /* * 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 */
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