diff options
author | Theo de Raadt <deraadt@cvs.openbsd.org> | 1996-05-22 12:16:16 +0000 |
---|---|---|
committer | Theo de Raadt <deraadt@cvs.openbsd.org> | 1996-05-22 12:16:16 +0000 |
commit | 1fdb1f83677dae9d665c887c46a3ee2fa79683c1 (patch) | |
tree | 243117370bfb13dd2d407994e575c1b896876ee1 /lib/libc/arch | |
parent | 6b3a16e467121d75677a5fdb4693dc62081ef4c4 (diff) |
sync to ragge
Diffstat (limited to 'lib/libc/arch')
-rw-r--r-- | lib/libc/arch/vax/string/Makefile.inc | 5 | ||||
-rw-r--r-- | lib/libc/arch/vax/string/bcmp.S | 62 | ||||
-rw-r--r-- | lib/libc/arch/vax/string/bcopy.S | 79 | ||||
-rw-r--r-- | lib/libc/arch/vax/string/bzero.S | 54 | ||||
-rw-r--r-- | lib/libc/arch/vax/string/ffs.S | 49 | ||||
-rw-r--r-- | lib/libc/arch/vax/string/index.S | 63 | ||||
-rw-r--r-- | lib/libc/arch/vax/string/memcmp.S | 69 | ||||
-rw-r--r-- | lib/libc/arch/vax/string/memcpy.S | 94 | ||||
-rw-r--r-- | lib/libc/arch/vax/string/memmove.S | 94 | ||||
-rw-r--r-- | lib/libc/arch/vax/string/memset.S | 56 |
10 files changed, 623 insertions, 2 deletions
diff --git a/lib/libc/arch/vax/string/Makefile.inc b/lib/libc/arch/vax/string/Makefile.inc index 7afdc23ce9c..719daa6aa57 100644 --- a/lib/libc/arch/vax/string/Makefile.inc +++ b/lib/libc/arch/vax/string/Makefile.inc @@ -1,6 +1,7 @@ -# $NetBSD: Makefile.inc,v 1.1 1995/04/17 12:23:55 ragge Exp $ +# $NetBSD: Makefile.inc,v 1.2 1996/05/19 15:57:37 ragge Exp $ -SRCS+= bcmp.c bcopy.c bzero.c ffs.c index.c memchr.c memcmp.c memset.c \ +SRCS+= bcmp.S bcopy.S bzero.S ffs.S index.S memchr.c memcmp.S memset.S \ rindex.c strcat.c strcmp.c strcpy.c strcspn.c strlen.c \ strncat.c strncmp.c strncpy.c strpbrk.c strsep.c \ strspn.c strstr.c swab.c +SRCS+= memcpy.S memmove.S diff --git a/lib/libc/arch/vax/string/bcmp.S b/lib/libc/arch/vax/string/bcmp.S new file mode 100644 index 00000000000..45fe796e439 --- /dev/null +++ b/lib/libc/arch/vax/string/bcmp.S @@ -0,0 +1,62 @@ +/* $NetBSD: bcmp.S,v 1.1 1996/05/19 15:57:38 ragge Exp $ */ +/* + * Copyright (c) 1983, 1993 + * The 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. + */ + +/* bcmp(s1, s2, n) */ + +#include "DEFS.h" + +/* Since "cmpc3" is not portable across VAXen, do it the hard way */ +/* still, this is four times faster than the generic C version on a uvax2 */ + +ENTRY(bcmp, 0) + movl 12(ap),r0 # r0 = n + jeql 9f + movq 4(ap),r1 # r1 = s1, r2 = s2 + ashl $-2,r0,r3 # convert len to # of long words + jeql 2f +1: + cmpl (r1)+,(r2)+ # no "cmpq" alas, so four bytes at a time + jneq 9f + sobgtr r3,1b +2: + bicl3 $-4,r0,r3 # handle at most 3 extra bytes + jeql 8f +3: + cmpb (r1)+,(r2)+ + jneq 9f + sobgtr r3,3b +8: + clrl r0 # we have a match! +9: + ret diff --git a/lib/libc/arch/vax/string/bcopy.S b/lib/libc/arch/vax/string/bcopy.S new file mode 100644 index 00000000000..ff1d2f5933e --- /dev/null +++ b/lib/libc/arch/vax/string/bcopy.S @@ -0,0 +1,79 @@ +/* $NetBSD: bcopy.S,v 1.1 1996/05/19 15:57:39 ragge Exp $ */ +/* + * Copyright (c) 1983, 1993 + * The 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. + */ + +#if defined(LIBC_SCCS) && !defined(lint) + .asciz "@(#)bcopy.s 8.1 (Berkeley) 6/4/93" +#endif /* LIBC_SCCS and not lint */ + +/* bcopy(from, to, size) */ + +#include "DEFS.h" + +ENTRY(bcopy, R6) + movl 4(ap),r1 + movl 8(ap),r3 + movl 12(ap),r6 + cmpl r1,r3 + bgtr 2f # normal forward case + blss 3f # overlapping, must do backwards + ret # equal, nothing to do +1: + subl2 r0,r6 + movc3 r0,(r1),(r3) +2: + movzwl $65535,r0 + cmpl r6,r0 + jgtr 1b + movc3 r6,(r1),(r3) + ret +3: + addl2 r6,r1 + addl2 r6,r3 + movzwl $65535,r0 + jbr 5f +4: + subl2 r0,r6 + subl2 r0,r1 + subl2 r0,r3 + movc3 r0,(r1),(r3) + movzwl $65535,r0 + subl2 r0,r1 + subl2 r0,r3 +5: + cmpl r6,r0 + jgtr 4b + subl2 r6,r1 + subl2 r6,r3 + movc3 r6,(r1),(r3) + ret diff --git a/lib/libc/arch/vax/string/bzero.S b/lib/libc/arch/vax/string/bzero.S new file mode 100644 index 00000000000..17c7c38d41b --- /dev/null +++ b/lib/libc/arch/vax/string/bzero.S @@ -0,0 +1,54 @@ +/* $NetBSD: bzero.S,v 1.1 1996/05/19 15:57:40 ragge Exp $ */ +/* + * Copyright (c) 1983, 1993 + * The 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. + */ + +#if defined(LIBC_SCCS) && !defined(lint) + .asciz "@(#)bzero.s 8.1 (Berkeley) 6/4/93" +#endif /* LIBC_SCCS and not lint */ + +/* bzero(base, length) */ + +#include "DEFS.h" + +ENTRY(bzero, 0) + movl 4(ap),r3 + jbr 2f +1: + subl2 r0,8(ap) + movc5 $0,(r3),$0,r0,(r3) +2: + movzwl $65535,r0 + cmpl 8(ap),r0 + jgtr 1b + movc5 $0,(r3),$0,8(ap),(r3) + ret diff --git a/lib/libc/arch/vax/string/ffs.S b/lib/libc/arch/vax/string/ffs.S new file mode 100644 index 00000000000..69298579f88 --- /dev/null +++ b/lib/libc/arch/vax/string/ffs.S @@ -0,0 +1,49 @@ +/* $NetBSD: ffs.S,v 1.1 1996/05/19 15:57:41 ragge Exp $ */ +/* + * Copyright (c) 1983, 1993 + * The 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. + */ + +#if defined(LIBC_SCCS) && !defined(lint) + .asciz "@(#)ffs.s 8.1 (Berkeley) 6/4/93" +#endif /* LIBC_SCCS and not lint */ + +/* bit = ffs(value) */ + +#include "DEFS.h" + +ENTRY(ffs, 0) + ffs $0,$32,4(ap),r0 + bneq 1f + mnegl $1,r0 +1: + incl r0 + ret diff --git a/lib/libc/arch/vax/string/index.S b/lib/libc/arch/vax/string/index.S new file mode 100644 index 00000000000..07842c5b3d1 --- /dev/null +++ b/lib/libc/arch/vax/string/index.S @@ -0,0 +1,63 @@ +/* $NetBSD: index.S,v 1.1 1996/05/19 15:57:43 ragge Exp $ */ +/* + * Copyright (c) 1980, 1993 + * The 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. + */ + +/* + * Find the first occurence of c in the string cp. + * Return pointer to match or null pointer. + * + * char * + * index(cp, c) + * char *cp, c; + */ +#include "DEFS.h" + +/* Alas not quite twice as fast as the generic C version on a uvax2 */ + +ENTRY(index, 0) + movq 4(ap),r0 # r0 = cp; r1 = c + tstb r1 # special case, looking for '\0' + jeql 3f +1: + cmpb (r0),r1 + jeql 2f + tstb (r0)+ + jneq 1b + clrl r0 # return NULL if no match +2: + ret +3: + tstb (r0)+ + jneq 3b + decl r0 + jbr 2b diff --git a/lib/libc/arch/vax/string/memcmp.S b/lib/libc/arch/vax/string/memcmp.S new file mode 100644 index 00000000000..5e2ecce59da --- /dev/null +++ b/lib/libc/arch/vax/string/memcmp.S @@ -0,0 +1,69 @@ +/* $NetBSD: memcmp.S,v 1.1 1996/05/19 15:57:44 ragge Exp $ */ +/*- + * Copyright (c) 1990, 1993 + * The 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. + */ + +/* int memcmp(s1, s2, n) */ + +#include "DEFS.h" + +ENTRY(memcmp, 0) + movl 12(ap),r0 + jeql 9f + movq 4(ap),r1 + ashl $-2,r0,r3 # convert len to long words + jeql 2f +1: + cmpl (r1)+,(r2)+ # no "cmpq" alas + jneq 7f + sobgtr r3,1b +2: + bicl3 $-4,r0,r3 # handle at most 3 extra bytes + jeql 4f +3: + cmpb (r1)+,(r2)+ + jneq 8f + sobgtr r3,3b +4: + clrl r0 # we had a match + ret +7: # backup, and do a byte compare + tstl -(r1) + tstl -(r2) + movl $4,r3 + jbr 3b +8: + movzbl -(r1),r3 + movzbl -(r2),r4 + subl3 r4,r3,r0 +9: + ret diff --git a/lib/libc/arch/vax/string/memcpy.S b/lib/libc/arch/vax/string/memcpy.S new file mode 100644 index 00000000000..54f7ce842c4 --- /dev/null +++ b/lib/libc/arch/vax/string/memcpy.S @@ -0,0 +1,94 @@ +/* $NetBSD: memcpy.S,v 1.1 1996/05/19 15:57:45 ragge Exp $ */ +/*- + * Copyright (c) 1990, 1993 + * The 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. + */ + +#if defined(LIBC_SCCS) && !defined(lint) + .asciz "@(#)memcpy.s 8.1 (Berkeley) 6/4/93" +#endif /* LIBC_SCCS and not lint */ + +/* + * void *memcpy(dst, src, size) + * returns dst + * + * This optimises the usual case (count < 65536) at the expense + * of some extra memory references and branches when count >= 65536. + */ + +#include "DEFS.h" + +ENTRY(memcpy, 0) + movzwl $65535,r0 /* r0 = 64K (needed below) */ + movq 8(ap),r1 /* r1 = src, r2 = length */ + movl 4(ap),r3 /* r3 = dst */ + cmpl r1,r3 + bgtru 1f /* normal forward case */ + beql 2f /* equal, nothing to do */ + addl2 r2,r1 /* overlaps iff src<dst but src+len>dst */ + cmpl r1,r3 + bgtru 4f /* overlapping, must move backwards */ + subl2 r2,r1 + +1: /* move forward */ + cmpl r2,r0 + bgtru 3f /* stupid movc3 limitation */ + movc3 r2,(r1),(r3) /* move it all */ +2: + movl 4(ap),r0 /* return original dst */ + ret +3: + subl2 r0,12(ap) /* adjust length by 64K */ + movc3 r0,(r1),(r3) /* move 64K */ + movl 12(ap),r2 + decw r0 /* from 0 to 65535 */ + brb 1b /* retry */ + +4: /* move backward */ + addl2 r2,r3 +5: + cmpl r2,r0 + bgtru 6f /* stupid movc3 limitation */ + subl2 r2,r1 + subl2 r2,r3 + movc3 r2,(r1),(r3) /* move it all */ + movl 4(ap),r0 /* return original dst */ + ret +6: + subl2 r0,12(ap) /* adjust length by 64K */ + subl2 r0,r1 + subl2 r0,r3 + movc3 r0,(r1),(r3) /* move 64K */ + movl 12(ap),r2 + decw r0 + subl2 r0,r1 + subl2 r0,r3 + brb 5b diff --git a/lib/libc/arch/vax/string/memmove.S b/lib/libc/arch/vax/string/memmove.S new file mode 100644 index 00000000000..c3cd5d5101a --- /dev/null +++ b/lib/libc/arch/vax/string/memmove.S @@ -0,0 +1,94 @@ +/* $NetBSD: memmove.S,v 1.1 1996/05/19 15:57:47 ragge Exp $ */ +/*- + * Copyright (c) 1990, 1993 + * The 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. + */ + +#if defined(LIBC_SCCS) && !defined(lint) + .asciz "@(#)memmove.s 8.1 (Berkeley) 6/4/93" +#endif /* LIBC_SCCS and not lint */ + +/* + * void *memmove(dst, src, size) + * returns dst + * + * This optimises the usual case (count < 65536) at the expense + * of some extra memory references and branches when count >= 65536. + */ + +#include "DEFS.h" + +ENTRY(memmove, 0) + movzwl $65535,r0 /* r0 = 64K (needed below) */ + movq 8(ap),r1 /* r1 = src, r2 = length */ + movl 4(ap),r3 /* r3 = dst */ + cmpl r1,r3 + bgtru 1f /* normal forward case */ + beql 2f /* equal, nothing to do */ + addl2 r2,r1 /* overlaps iff src<dst but src+len>dst */ + cmpl r1,r3 + bgtru 4f /* overlapping, must move backwards */ + subl2 r2,r1 + +1: /* move forward */ + cmpl r2,r0 + bgtru 3f /* stupid movc3 limitation */ + movc3 r2,(r1),(r3) /* move it all */ +2: + movl 4(ap),r0 /* return original dst */ + ret +3: + subl2 r0,12(ap) /* adjust length by 64K */ + movc3 r0,(r1),(r3) /* move 64K */ + movl 12(ap),r2 + decw r0 /* from 0 to 65535 */ + brb 1b /* retry */ + +4: /* move backward */ + addl2 r2,r3 +5: + cmpl r2,r0 + bgtru 6f /* stupid movc3 limitation */ + subl2 r2,r1 + subl2 r2,r3 + movc3 r2,(r1),(r3) /* move it all */ + movl 4(ap),r0 /* return original dst */ + ret +6: + subl2 r0,12(ap) /* adjust length by 64K */ + subl2 r0,r1 + subl2 r0,r3 + movc3 r0,(r1),(r3) /* move 64K */ + movl 12(ap),r2 + decw r0 + subl2 r0,r1 + subl2 r0,r3 + brb 5b diff --git a/lib/libc/arch/vax/string/memset.S b/lib/libc/arch/vax/string/memset.S new file mode 100644 index 00000000000..aad5b3d64df --- /dev/null +++ b/lib/libc/arch/vax/string/memset.S @@ -0,0 +1,56 @@ +/* $NetBSD: memset.S,v 1.1 1996/05/19 15:57:49 ragge Exp $ */ +/*- + * Copyright (c) 1990, 1993 + * The 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. + */ + +#if defined(LIBC_SCCS) && !defined(lint) + .asciz "@(#)memset.s 8.1 (Berkeley) 6/4/93" +#endif /* LIBC_SCCS and not lint */ + +/* void *memset(base, c, length) */ + +#include "DEFS.h" + +ENTRY(memset, 0) + movl 4(ap),r3 +1: + movzwl $65535,r0 + movq 8(ap),r1 + cmpl r2,r0 + jgtru 2f + movc5 $0,(r3),r1,r2,(r3) + movl r1,r0 + ret +2: + subl2 r0,12(ap) + movc5 $0,(r3),r1,r0,(r3) + jbr 1b |