forked from Imagelibrary/rtems
111 lines
2.5 KiB
C
111 lines
2.5 KiB
C
/* asm.h
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*
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* This include file attempts to address the problems
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* caused by incompatible flavors of assemblers and
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* toolsets. It primarily addresses variations in the
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* use of leading underscores on symbols and the requirement
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* that register names be preceded by a %.
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*
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*
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* NOTE: The spacing in the use of these macros
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* is critical to them working as advertised.
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*
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* COPYRIGHT:
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*
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* This file is based on similar code found in newlib available
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* from ftp.cygnus.com. The file which was used had no copyright
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* notice. This file is freely distributable as long as the source
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* of the file is noted. This file is:
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*
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* COPYRIGHT (c) 1994.
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* On-Line Applications Research Corporation (OAR).
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*
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* $Id$
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*/
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#ifndef __i960_ASM_h
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#define __i960_ASM_h
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/*
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* Indicate we are in an assembly file and get the basic CPU definitions.
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*/
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#ifndef ASM
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#define ASM
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#endif
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#include <rtems/score/targopts.h>
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#include <rtems/score/i960.h>
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/*
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* Recent versions of GNU cpp define variables which indicate the
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* need for underscores and percents. If not using GNU cpp or
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* the version does not support this, then you will obviously
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* have to define these as appropriate.
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*/
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#ifndef __USER_LABEL_PREFIX__
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#define __USER_LABEL_PREFIX__ _
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#endif
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#ifndef __REGISTER_PREFIX__
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#define __REGISTER_PREFIX__
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#endif
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/* ANSI concatenation macros. */
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#define CONCAT1(a, b) CONCAT2(a, b)
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#define CONCAT2(a, b) a ## b
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/* Use the right prefix for global labels. */
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#define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__, x)
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/* Use the right prefix for registers. */
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#define REG(x) CONCAT1 (__REGISTER_PREFIX__, x)
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#define g0 REG (g0)
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#define g1 REG (g1)
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#define g2 REG (g2)
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#define g3 REG (g3)
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#define g4 REG (g4)
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#define g5 REG (g5)
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#define g6 REG (g6)
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#define g7 REG (g7)
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#define g8 REG (g8)
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#define g9 REG (g9)
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#define g10 REG (g10)
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#define g11 REG (g11)
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#define g12 REG (g12)
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#define g13 REG (g13)
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#define g14 REG (g14)
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#define g15 REG (g15)
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/*
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* Define macros to handle section beginning and ends.
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*/
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#define BEGIN_CODE_DCL .text
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#define END_CODE_DCL
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#define BEGIN_DATA_DCL .data
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#define END_DATA_DCL
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#define BEGIN_CODE .text
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#define END_CODE
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#define BEGIN_DATA
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#define END_DATA
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#define BEGIN_BSS
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#define END_BSS
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#define END
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/*
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* Following must be tailor for a particular flavor of the C compiler.
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* They may need to put underscores in front of the symbols.
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*/
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#define PUBLIC(sym) .globl SYM (sym)
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#define EXTERN(sym) .globl SYM (sym)
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#endif
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/* end of include file */
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