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[/] [hf-risc/] [trunk/] [tools/] [riscv-gnu-toolchain-master/] [newlib/] [newlib/] [libc/] [machine/] [riscv/] [sys/] [asm.h] - Rev 13

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/* copyright (c) 1997, 1998, 2002, 2003, 2004, 2005
   Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Ralf Baechle <ralf@gnu.org>.
 
   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.
 
   The GNU C Library 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.  See the GNU
   Lesser General Public License for more details.
 
   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */
 
#ifndef _SYS_ASM_H
#define _SYS_ASM_H
 
/* 
 * Macros to handle different pointer/register sizes for 32/64-bit code
 */
#ifdef __riscv64
# define PTR .dword
# define PTRLOG 3
# define SZREG	8
# define REG_S sd
# define REG_L ld
#else
# define PTR .word
# define PTRLOG 2
# define SZREG	4
# define REG_S sw
# define REG_L lw
#endif
 
/*
 * LEAF - declare leaf routine
 */
#define	LEAF(symbol)	\
		.globl	symbol;                         \
		.align	2;                              \
		.type	symbol,@function;               \
symbol:
 
/*
 * NESTED - declare nested routine entry point
 */
#define	NESTED(symbol, framesize, rpc) LEAF(symbol)
 
/*
 * END - mark end of function
 */
#ifndef END
# define END(function)                                   \
		.size	function,.-function
#endif
 
/*
 * Stack alignment
 */
#define ALSZ	15
#define ALMASK	~15
 
#endif /* sys/asm.h */
 

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