282 lines
7.7 KiB
C
282 lines
7.7 KiB
C
/* $NetBSD: macros.h,v 1.17 1998/11/07 17:22:58 ragge Exp $ */
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/*
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* Copyright (c) 1994, 1998 Ludd, University of Lule}, Sweden.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed at Ludd, University of Lule}.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/* All bugs are subject to removal without further notice */
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#if !defined(_VAX_MACROS_H_) && !defined(lint)
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#define _VAX_MACROS_H_
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/* Here general macros are supposed to be stored */
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static __inline__ int
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ffs(int reg)
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{
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register int val;
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__asm__ __volatile ("ffs $0,$32,%1,%0
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bneq 1f
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mnegl $1,%0
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1: incl %0"
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: "&=r" (val)
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: "r" (reg) );
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return val;
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}
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static __inline__ void
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_remque(void *p)
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{
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__asm__ __volatile ("remque (%0),%0;clrl 4(%0)"
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:
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: "r" (p)
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: "memory" );
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}
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static __inline__ void
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_insque(void *p, void *q)
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{
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__asm__ __volatile ("insque (%0), (%1)"
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:
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: "r" (p),"r" (q)
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: "memory" );
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}
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static __inline__ void *
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memcpy(void *toe, const void *from, u_int len)
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{
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__asm__ __volatile ("movc3 %0,(%1),(%2)"
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:
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: "r" (len),"r" (from),"r"(toe)
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:"r0","r1","r2","r3","r4","r5","memory","cc");
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return toe;
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}
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static __inline__ void *
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memmove(void *toe, const void *from, u_int len)
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{
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__asm__ __volatile ("movc3 %0,(%1),(%2)"
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:
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: "r" (len),"r" (from),"r"(toe)
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:"r0","r1","r2","r3","r4","r5","memory","cc");
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return toe;
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}
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static __inline__ void
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bcopy(const void *from, void *toe, u_int len)
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{
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__asm__ __volatile ("movc3 %0,(%1),(%2)"
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:
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: "r" (len),"r" (from),"r"(toe)
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:"r0","r1","r2","r3","r4","r5","memory","cc");
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}
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void blkclr __P((void *, u_int));
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static __inline__ void *
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memset(void *block, int c, size_t len)
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{
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if (len > 65535)
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blkclr(block, len);
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else {
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__asm__ __volatile ("movc5 $0,(%0),%2,%1,(%0)"
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:
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: "r" (block), "r" (len), "r"(c)
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:"r0","r1","r2","r3","r4","r5","memory","cc");
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}
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return block;
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}
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static __inline__ void
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bzero(void *block, u_int len)
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{
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if (len > 65535)
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blkclr(block, len);
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else {
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__asm__ __volatile ("movc5 $0,(%0),$0,%1,(%0)"
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:
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: "r" (block), "r" (len)
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:"r0","r1","r2","r3","r4","r5","memory","cc");
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}
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}
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/* XXX - the return syntax of memcmp is wrong */
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static __inline__ int
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memcmp(const void *b1, const void *b2, size_t len)
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{
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register int ret;
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__asm__ __volatile("cmpc3 %3,(%1),(%2);movl r0,%0"
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: "=r" (ret)
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: "r" (b1), "r" (b2), "r" (len)
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: "r0","r1","r2","r3" );
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return ret;
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}
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static __inline__ int
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bcmp(const void *b1, const void *b2, size_t len)
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{
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register int ret;
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__asm__ __volatile("cmpc3 %3,(%1),(%2);movl r0,%0"
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: "=r" (ret)
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: "r" (b1), "r" (b2), "r" (len)
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: "r0","r1","r2","r3" );
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return ret;
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}
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/* Begin nya */
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static __inline__ size_t
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strlen(const char *cp)
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{
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register size_t ret;
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__asm__ __volatile("locc $0,$65535,(%1);subl3 r0,$65535,%0"
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: "=r" (ret)
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: "r" (cp)
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: "r0","r1","cc" );
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return ret;
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}
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static __inline__ char *
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strcat(char *cp, const char *c2)
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{
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__asm__ __volatile("locc $0,$65535,(%1);subl3 r0,$65535,r2;incl r2;
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locc $0,$65535,(%0);movc3 r2,(%1),(r1)"
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:
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: "r" (cp), "r" (c2)
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: "r0","r1","r2","r3","r4","r5","memory","cc");
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return cp;
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}
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static __inline__ char *
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strncat(char *cp, const char *c2, size_t count)
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{
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__asm__ __volatile("locc $0,%2,(%1);subl3 r0,%2,r2;
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locc $0,$65535,(%0);movc3 r2,(%1),(r1);movb $0,(r3)"
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:
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: "r" (cp), "r" (c2), "g"(count)
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: "r0","r1","r2","r3","r4","r5","memory","cc");
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return cp;
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}
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static __inline__ char *
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strcpy(char *cp, const char *c2)
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{
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__asm__ __volatile("locc $0,$65535,(%1);subl3 r0,$65535,r2;
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movc3 r2,(%1),(%0);movb $0,(r3)"
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:
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: "r" (cp), "r" (c2)
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: "r0","r1","r2","r3","r4","r5","memory","cc");
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return cp;
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}
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static __inline__ char *
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strncpy(char *cp, const char *c2, size_t len)
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{
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__asm__ __volatile("movl %2,r2;locc $0,r2,(%1);beql 1f;subl3 r0,%2,r2;
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clrb (%0)[r2];1:;movc3 r2,(%1),(%0)"
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:
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: "r" (cp), "r" (c2), "g"(len)
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: "r0","r1","r2","r3","r4","r5","memory","cc");
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return cp;
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}
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static __inline__ void *
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memchr(const void *cp, int c, size_t len)
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{
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void *ret;
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__asm__ __volatile("locc %2,%3,(%1);bneq 1f;clrl r1;1:movl r1,%0"
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: "=g"(ret)
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: "r" (cp), "r" (c), "g"(len)
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: "r0","r1","cc");
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return ret;
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}
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static __inline__ int
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strcmp(const char *cp, const char *c2)
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{
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register int ret;
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__asm__ __volatile("locc $0,$65535,(%1);subl3 r0,$65535,r0;incl r0;
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cmpc3 r0,(%1),(%2);beql 1f;movl $1,r2;
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cmpb (r1),(r3);bcc 1f;movl $-1,r2;1:movl r2,%0"
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: "=g"(ret)
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: "r" (cp), "r" (c2)
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: "r0","r1","r2","r3","cc");
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return ret;
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}
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/* End nya */
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#if 0 /* unused, but no point in deleting it since it _is_ an instruction */
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static __inline__ int locc(int mask, char *cp,u_int size){
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register ret;
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__asm__ __volatile("locc %1,%2,(%3);movl r0,%0"
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: "=r" (ret)
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: "r" (mask),"r"(size),"r"(cp)
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: "r0","r1" );
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return ret;
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}
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#endif
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static __inline__ int
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scanc(u_int size, const u_char *cp, const u_char *table, int mask)
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{
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register int ret;
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__asm__ __volatile("scanc %1,(%2),(%3),%4;movl r0,%0"
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: "=g"(ret)
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: "r"(size),"r"(cp),"r"(table),"r"(mask)
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: "r0","r1","r2","r3" );
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return ret;
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}
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static __inline__ int
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skpc(int mask, size_t size, u_char *cp)
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{
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register int ret;
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__asm__ __volatile("skpc %1,%2,(%3);movl r0,%0"
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: "=g"(ret)
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: "r"(mask),"r"(size),"r"(cp)
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: "r0","r1" );
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return ret;
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}
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#define setrunqueue(p) \
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__asm__ __volatile("movl %0,r0;jsb Setrq":: "g"(p):"r0","r1","r2");
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#define remrunqueue(p) \
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__asm__ __volatile("movl %0,r0;jsb Remrq":: "g"(p):"r0","r1","r2");
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#define cpu_switch(p) \
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__asm__ __volatile("movl %0,r0;movpsl -(sp);jsb Swtch" \
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::"g"(p):"r0","r1","r2","r3");
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#endif /* _VAX_MACROS_H_ */
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