Module Name: src
Committed By: scole
Date: Fri Aug 5 15:06:02 UTC 2016
Added Files:
src/common/lib/libc/arch/ia64/string: bcopy.S bzero.S ffs.S memcpy.S
memmove.S
Log Message:
PR port-ia64/51261
Imported from FreeBSD with a minor change or two
To generate a diff of this commit:
cvs rdiff -u -r0 -r1.1 src/common/lib/libc/arch/ia64/string/bcopy.S \
src/common/lib/libc/arch/ia64/string/bzero.S \
src/common/lib/libc/arch/ia64/string/ffs.S \
src/common/lib/libc/arch/ia64/string/memcpy.S \
src/common/lib/libc/arch/ia64/string/memmove.S
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Added files:
Index: src/common/lib/libc/arch/ia64/string/bcopy.S
diff -u /dev/null src/common/lib/libc/arch/ia64/string/bcopy.S:1.1
--- /dev/null Fri Aug 5 15:06:02 2016
+++ src/common/lib/libc/arch/ia64/string/bcopy.S Fri Aug 5 15:06:02 2016
@@ -0,0 +1,102 @@
+/* $NetBSD: bcopy.S,v 1.1 2016/08/05 15:06:02 scole Exp $ */
+
+/*-
+ * Copyright (c) 2000 Doug Rabson
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+ *
+ * __FBSDID("$FreeBSD: releng/10.1/lib/libc/ia64/string/bcopy.S 125669 2004-02-10 20:45:28Z cperciva $");
+ */
+
+#include <machine/asm.h>
+
+/*
+ * void
+ * bcopy(const void *src, void *dst, size_t len);
+ */
+
+/*
+ * Not the fastest bcopy in the world.
+ */
+ENTRY(bcopy, 3)
+
+ cmp.le p6,p0=in2,r0 // bail if len <= 0
+(p6) br.ret.spnt.few rp
+
+ sub r14=in1,in0 ;; // check for overlap
+ cmp.ltu p6,p0=r14,in2 // dst-src < len
+(p6) br.cond.spnt.few 5f
+
+ extr.u r14=in0,0,3 // src & 7
+ extr.u r15=in1,0,3 ;; // dst & 7
+ cmp.eq p6,p0=r14,r15 // different alignment?
+(p6) br.cond.spnt.few 2f // branch if same alignment
+
+1: ld1 r14=[in0],1 ;; // copy bytewise
+ st1 [in1]=r14,1
+ add in2=-1,in2 ;; // len--
+ cmp.ne p6,p0=r0,in2
+(p6) br.cond.dptk.few 1b // loop
+ br.ret.sptk.few rp // done
+
+2: cmp.eq p6,p0=r14,r0 // aligned?
+(p6) br.cond.sptk.few 4f
+
+3: ld1 r14=[in0],1 ;; // copy bytewise
+ st1 [in1]=r14,1
+ extr.u r15=in0,0,3 // src & 7
+ add in2=-1,in2 ;; // len--
+ cmp.eq p6,p0=r0,in2 // done?
+ cmp.eq p7,p0=r0,r15 ;; // aligned now?
+(p6) br.ret.spnt.few rp // return if done
+(p7) br.cond.spnt.few 4f // go to main copy
+ br.cond.sptk.few 3b // more bytes to copy
+
+ // At this point, in2 is non-zero
+
+4: mov r14=8 ;;
+ cmp.ltu p6,p0=in2,r14 ;; // len < 8?
+(p6) br.cond.spnt.few 1b // byte copy the end
+ ld8 r15=[in0],8 ;; // copy word
+ st8 [in1]=r15,8
+ add in2=-8,in2 ;; // len -= 8
+ cmp.ne p6,p0=r0,in2 // done?
+(p6) br.cond.spnt.few 4b // again
+
+ br.ret.sptk.few rp // return
+
+ // Don't bother optimising overlap case
+
+5: add in0=in0,in2
+ add in1=in1,in2 ;;
+ add in0=-1,in0
+ add in1=-1,in1 ;;
+
+6: ld1 r14=[in0],-1 ;;
+ st1 [in1]=r14,-1
+ add in2=-1,in2 ;;
+ cmp.ne p6,p0=r0,in2
+(p6) br.cond.spnt.few 6b
+
+ br.ret.sptk.few rp
+END(bcopy)
Index: src/common/lib/libc/arch/ia64/string/bzero.S
diff -u /dev/null src/common/lib/libc/arch/ia64/string/bzero.S:1.1
--- /dev/null Fri Aug 5 15:06:02 2016
+++ src/common/lib/libc/arch/ia64/string/bzero.S Fri Aug 5 15:06:02 2016
@@ -0,0 +1,88 @@
+/* $NetBSD: bzero.S,v 1.1 2016/08/05 15:06:02 scole Exp $ */
+
+/*-
+ * Copyright (c) 2000 Doug Rabson
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+ *
+ * __FBSDID("$FreeBSD: releng/10.1/lib/libc/ia64/string/bzero.S 125669 2004-02-10 20:45:28Z cperciva $");
+ */
+
+#include <machine/asm.h>
+
+/*
+ * void
+ * bzero(void *b, size_t len);
+ */
+ENTRY(bzero, 2)
+
+ cmp.le p6,p0=in1,r0 // bail if len <= 0
+(p6) br.ret.spnt.few rp
+ ;;
+ mov r14=ar.lc // save ar.lc
+
+ cmp.ltu p6,p0=17,in1 // check for small
+(p6) br.dptk.few 3f
+
+1: add r15=-1,in1 ;;
+ mov ar.lc=r15 ;;
+2: st1 [in0]=r0,1 // zero one byte
+ br.cloop.sptk.few 2b // loop
+
+ ;;
+ mov ar.lc=r14 // done
+ br.ret.sptk.few rp
+
+ // Zero up to 8byte alignment
+
+3: tbit.nz p6,p0=in0,0 ;;
+(p6) st1 [in0]=r0,1
+(p6) add in1=-1,in1 ;;
+
+ tbit.nz p6,p0=in0,1 ;;
+(p6) st2 [in0]=r0,2
+(p6) add in1=-2,in1 ;;
+
+ tbit.nz p6,p0=in0,2 ;;
+(p6) st4 [in0]=r0,4
+(p6) add in1=-4,in1
+
+ ;;
+ shr.u r15=in1,3 // word count
+ extr.u in1=in1,0,3 ;; // trailing bytes
+ cmp.eq p6,p0=r15,r0 // check for zero
+ cmp.ne p7,p0=in1,r0
+(p6) br.dpnt.few 1b // zero last bytes
+
+ add r15=-1,r15 ;;
+ mov ar.lc=r15 ;;
+4: st8 [in0]=r0,8
+ br.cloop.sptk.few 4b
+
+(p7) br.dpnt.few 1b // zero last bytes
+
+ ;;
+ mov ar.lc=r14 // done
+ br.ret.sptk.few rp
+
+END(bzero)
Index: src/common/lib/libc/arch/ia64/string/ffs.S
diff -u /dev/null src/common/lib/libc/arch/ia64/string/ffs.S:1.1
--- /dev/null Fri Aug 5 15:06:02 2016
+++ src/common/lib/libc/arch/ia64/string/ffs.S Fri Aug 5 15:06:02 2016
@@ -0,0 +1,106 @@
+/* $NetBSD: ffs.S,v 1.1 2016/08/05 15:06:02 scole Exp $ */
+
+/*
+ * Copyright (c) 1995 Christopher G. Demetriou
+ * 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 Christopher G. Demetriou
+ * for the NetBSD Project.
+ * 4. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
+ *
+ * __FBSDID("$FreeBSD: releng/10.1/lib/libc/ia64/string/ffs.S 111777 2003-03-03 01:09:46Z obrien $");
+ *
+ */
+
+#include <machine/asm.h>
+/*
+
+/*
+ * int
+ * ffs(int value);
+ */
+ENTRY(ffs, 1)
+ sxt4 r14=in0 ;;
+ cmp.eq p6,p0=r14,r0
+(p6) br.dpnt.few Lallzero
+
+ /*
+ * Initialize return value (ret0), and set up r15 so that it
+ * contains the mask with only the lowest bit set.
+ */
+ sub r15=r0,r14
+ mov ret0=1 ;;
+ and r15=r14,r15 ;;
+
+ extr.u r16=r15,0,8 ;;
+ cmp.ne p6,p0=r0,r16
+(p6) br.dptk.few Ldo8
+
+ /*
+ * If lower 16 bits empty, add 16 to result and use upper 16.
+ */
+ extr.u r16=r15,0,16 ;;
+ cmp.ne p6,p0=r0,r16
+(p6) br.dptk.few Ldo16
+ extr.u r15=r15,16,16
+ add ret0=16,ret0 ;;
+
+Ldo16:
+ /*
+ * If lower 8 bits empty, add 8 to result and use upper 8.
+ */
+ extr.u r16=r15,0,8 ;;
+ cmp.ne p6,p0=r0,r16
+(p6) br.dptk.few Ldo8
+ extr.u r15=r15,8,24
+ add ret0=8,ret0 ;;
+
+Ldo8:
+ and r16=0x0f,r15 /* lower 4 of 8 empty? */
+ and r17=0x33,r15 /* lower 2 of each 4 empty? */
+ and r18=0x55,r15 ;; /* lower 1 of each 2 empty? */
+ cmp.ne p6,p0=r16,r0
+ cmp.ne p7,p0=r17,r0
+ cmp.ne p8,p0=r18,r0
+
+ /* If lower 4 bits empty, add 4 to result. */
+(p6) br.dptk.few Ldo4
+ add ret0=4,ret0 ;;
+
+Ldo4: /* If lower 2 bits of each 4 empty, add 2 to result. */
+(p7) br.dptk.few Ldo2
+ add ret0=2,ret0 ;;
+
+Ldo2: /* If lower bit of each 2 empty, add 1 to result. */
+(p8) br.dptk.few Ldone
+ add ret0=1,ret0
+
+Ldone:
+ br.ret.sptk.few rp
+
+Lallzero:
+ mov ret0=0
+ br.ret.sptk.few rp
+END(ffs)
Index: src/common/lib/libc/arch/ia64/string/memcpy.S
diff -u /dev/null src/common/lib/libc/arch/ia64/string/memcpy.S:1.1
--- /dev/null Fri Aug 5 15:06:02 2016
+++ src/common/lib/libc/arch/ia64/string/memcpy.S Fri Aug 5 15:06:02 2016
@@ -0,0 +1,43 @@
+/* $NetBSD: memcpy.S,v 1.1 2016/08/05 15:06:02 scole Exp $ */
+
+/*-
+ * Copyright (c) 2000 Doug Rabson
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+ *
+ * __FBSDID("$FreeBSD: releng/10.1/lib/libc/ia64/string/memcpy.S 134739 2004-09-04 00:04:58Z marcel $");
+ */
+
+#include <machine/asm.h>
+
+/*
+ * void *
+ * memcpy(void * restrict dst, const void * restrict src, size_t len);
+ */
+ENTRY(memcpy,3)
+ mov r8 = in0
+ mov in0 = in1
+ ;;
+ mov in1 = r8
+ br.sptk.few bcopy
+END(memcpy)
Index: src/common/lib/libc/arch/ia64/string/memmove.S
diff -u /dev/null src/common/lib/libc/arch/ia64/string/memmove.S:1.1
--- /dev/null Fri Aug 5 15:06:02 2016
+++ src/common/lib/libc/arch/ia64/string/memmove.S Fri Aug 5 15:06:02 2016
@@ -0,0 +1,44 @@
+/* $NetBSD: memmove.S,v 1.1 2016/08/05 15:06:02 scole Exp $ */
+
+/*-
+ * Copyright (c) 2000 Doug Rabson
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+ *
+ * __FBSDID("$FreeBSD: releng/10.1/lib/libc/ia64/string/memmove.S 134743 2004-09-04 00:23:15Z marcel $");
+ *
+ */
+
+#include <machine/asm.h>
+
+/*
+ * void *
+ * memmove(void *dst, const void *src, size_t len);
+ */
+ENTRY(memmove,3)
+ mov r8 = in0
+ mov in0 = in1
+ ;;
+ mov in1 = r8
+ br.sptk.few bcopy
+END(memmove)
