sys.h

早期freebsd实现

/*
 * Copyright (c) 1988 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *	@(#)SYS.h	7.3 (Berkeley) 6/28/90
 */

/*
 * Macros used to define entry points
 * in assembly language routines.
 */
#if defined(GPROF) || defined(PROF)
#define	ENTRY(name, regs) \
	.globl _/**/name; .align 2; _/**/name: .word regs; callf $4,mcount
#define	ASENTRY(name, regs) \
	.globl name; .align 2; name: .word regs; callf $4,mcount
#else
#define	ENTRY(name, regs) \
	.globl _/**/name; .align 2; _/**/name: .word regs
#define	ASENTRY(name, regs) \
	.globl name; .align 2; name: .word regs
#endif
#define R0	0x0001
#define R1	0x0002
#define R2	0x0004
#define R3	0x0008
#define R4	0x0010
#define R5	0x0020
#define R6	0x0040
#define	R7	0x0080
#define	R8	0x0100
#define	R9	0x0200
#define	R10	0x0400
#define	R11	0x0800
#define	R12	0x1000