diff options
author | Mike Frysinger <vapier@gentoo.org> | 2005-08-26 00:01:54 +0000 |
---|---|---|
committer | Mike Frysinger <vapier@gentoo.org> | 2005-08-26 00:01:54 +0000 |
commit | d71ff82e7019e91ae9f76af391e7f677d421e205 (patch) | |
tree | b28b78dd5619b59cd28d11f007543e69fbe4bf12 /libc/string | |
parent | b11c2a4d0b7cf8095b93ae70fc187f0feadae5a1 (diff) |
import sparc-optimized string functions from glibc
Diffstat (limited to 'libc/string')
44 files changed, 6783 insertions, 1 deletions
diff --git a/libc/string/Makefile b/libc/string/Makefile index 6b516c1c5..600f3b81d 100644 --- a/libc/string/Makefile +++ b/libc/string/Makefile @@ -31,7 +31,7 @@ DIRS += $(TARGET_ARCH) endif endif -ALL_SUBDIRS = generic arm frv i386 sh64 powerpc mips +ALL_SUBDIRS = generic arm frv i386 mips powerpc sh64 sparc MSRC= wstring.c MOBJ= basename.o bcopy.o bzero.o dirname.o ffs.o memccpy.o memchr.o memcmp.o \ diff --git a/libc/string/sparc/Makefile b/libc/string/sparc/Makefile new file mode 100644 index 000000000..2215a6025 --- /dev/null +++ b/libc/string/sparc/Makefile @@ -0,0 +1,31 @@ +# Makefile for uClibc +# +# Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org> +# +# Licensed under the GNU Library General Public License version 2 or later. +# See the COPYING.LIB file in the toplevel for more information. + +TOPDIR=../../../ +include $(TOPDIR)Rules.mak + +CSRCS = $(wildcard *.c) +COBJS = $(patsubst %.c,%.o,$(CSRCS)) + +SSRCS = $(wildcard *.S) +SOBJS = $(patsubst %.S,%.o,$(SSRCS)) + +OBJS = $(COBJS) $(SOBJS) + +OBJ_LIST = ../../obj.string.$(TARGET_ARCH) + +all: $(OBJ_LIST) + +$(OBJ_LIST): $(OBJS) + echo $(patsubst %, string/$(TARGET_ARCH)/%, $(OBJS)) > $(OBJ_LIST) + +$(COBJS): %.o : %.c + $(CC) $(CFLAGS) -c $< -o $@ + $(STRIPTOOL) -x -R .note -R .comment $*.o + +clean: + $(RM) *.[oa] *~ core diff --git a/libc/string/sparc/_glibc_inc.h b/libc/string/sparc/_glibc_inc.h new file mode 100644 index 000000000..7840ba1bf --- /dev/null +++ b/libc/string/sparc/_glibc_inc.h @@ -0,0 +1,30 @@ +/* + * Setup some glibc defines so we can just drop in the + * asm files from glibc without any modification. + */ + +#include <features.h> +#include <bits/wordsize.h> + +#if __WORDSIZE == 32 +# define ENTRY_ALIGN 4 +#else +# define ENTRY_ALIGN 2 +#endif + +#define ENTRY(sym) \ + .global sym; \ + .align ENTRY_ALIGN; \ + .type sym,%function; \ + sym: + +#define LOC(sym) \ + .L ## sym + +#define END(sym) \ + .size sym,.-sym; + +#undef weak_alias +#define weak_alias(sym, alias) \ + .weak alias; \ + alias = sym; diff --git a/libc/string/sparc/bcopy.c b/libc/string/sparc/bcopy.c new file mode 100644 index 000000000..9a455f33c --- /dev/null +++ b/libc/string/sparc/bcopy.c @@ -0,0 +1 @@ +/* bcopy is in memcpy.S */ diff --git a/libc/string/sparc/bzero.c b/libc/string/sparc/bzero.c new file mode 100644 index 000000000..37f0f6f99 --- /dev/null +++ b/libc/string/sparc/bzero.c @@ -0,0 +1 @@ +/* bzero is in memset.S */ diff --git a/libc/string/sparc/memchr.S b/libc/string/sparc/memchr.S new file mode 100644 index 000000000..73e5101fd --- /dev/null +++ b/libc/string/sparc/memchr.S @@ -0,0 +1,13 @@ +#include "_glibc_inc.h" + +#if __WORDSIZE == 32 + +# if defined(__CONFIG_SPARC_V9B__) +# include "sparc32/sparcv9b/memchr.S" +# else +# include "sparc32/memchr.S" +# endif + +#else +# include "sparc64/memchr.S" +#endif diff --git a/libc/string/sparc/memcpy.S b/libc/string/sparc/memcpy.S new file mode 100644 index 000000000..478cb106f --- /dev/null +++ b/libc/string/sparc/memcpy.S @@ -0,0 +1,19 @@ +#include "_glibc_inc.h" + +#if __WORDSIZE == 32 + +# if defined(__CONFIG_SPARC_V9B__) +# include "sparc32/sparcv9b/memcpy.S" +# else +# include "sparc32/memcpy.S" +# endif + +#else + +# if defined(__CONFIG_SPARC_V9B__) +# include "sparc64/sparcv9b/memcpy.S" +# else +# include "sparc64/memcpy.S" +#endif + +#endif diff --git a/libc/string/sparc/memmove.c b/libc/string/sparc/memmove.c new file mode 100644 index 000000000..a8d2d4994 --- /dev/null +++ b/libc/string/sparc/memmove.c @@ -0,0 +1 @@ +/* memmove is in memcpy.S */ diff --git a/libc/string/sparc/memset.S b/libc/string/sparc/memset.S new file mode 100644 index 000000000..4aed77421 --- /dev/null +++ b/libc/string/sparc/memset.S @@ -0,0 +1,13 @@ +#include "_glibc_inc.h" + +#if __WORDSIZE == 32 + +# if defined(__CONFIG_SPARC_V9B__) +# include "sparc32/sparcv9b/memset.S" +# else +# include "sparc32/memset.S" +# endif + +#else +# include "sparc64/memset.S" +#endif diff --git a/libc/string/sparc/sparc32/memchr.S b/libc/string/sparc/sparc32/memchr.S new file mode 100644 index 000000000..c00df2427 --- /dev/null +++ b/libc/string/sparc/sparc32/memchr.S @@ -0,0 +1,144 @@ +/* memchr (str, ch, n) -- Return pointer to first occurrence of CH in STR less + than N. + For SPARC v7. + Copyright (C) 1996, 1999, 2000, 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Jakub Jelinek <jj@ultra.linux.cz> and + David S. Miller <davem@caip.rutgers.edu>. + This version is developed using the same algorithm as the fast C + version which carries the following introduction: + Based on strlen implementation by Torbjorn Granlund (tege@sics.se), + with help from Dan Sahlin (dan@sics.se) and + commentary by Jim Blandy (jimb@ai.mit.edu); + adaptation to memchr suggested by Dick Karpinski (dick@cca.ucsf.edu), + and implemented by Roland McGrath (roland@ai.mit.edu). + + 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. */ + + .text + .align 4 +0: cmp %o2, 0 + be 9f + sethi %hi(0x80808080), %o4 + ldub [%o0], %g4 + cmp %g4, %o1 + be 1f + add %o0, 1, %o0 + subcc %o2, 1, %o2 + be 9f + andcc %o0, 3, %g0 + be 4f + or %o4, %lo(0x80808080), %o3 + ldub [%o0], %g4 + cmp %g4, %o1 + be 1f + add %o0, 1, %o0 + subcc %o2, 1, %o2 + be 9f + andcc %o0, 3, %g0 + be 5f + sethi %hi(0x01010101), %o5 + ldub [%o0], %g4 + cmp %g4, %o1 + be 1f + add %o0, 1, %o0 + subcc %o2, 1, %o2 + bne,a 7f + and %o2, 3, %g1 + retl + clr %o0 +1: retl + sub %o0, 1, %o0 + +ENTRY(__memchr) + andcc %o1, 0xff, %o1 + sll %o1, 8, %g6 + andcc %o0, 3, %g0 + or %o1, %g6, %g6 + sll %g6, 16, %o3 + bne 0b + or %o3, %g6, %g2 + sethi %hi(0x80808080), %o4 + or %o4, %lo(0x80808080), %o3 +4: sethi %hi(0x01010101), %o5 +5: and %o2, 3, %g1 +7: andcc %o2, 0xfffffffc, %o2 + be 0f + or %o5, %lo(0x01010101), %g6 + ld [%o0], %g4 +6: xor %g4, %g2, %g5 + add %o0, 4, %o0 + sub %g5, %g6, %g5 + andcc %g5, %o3, %g0 + bne 8f + subcc %o2, 4, %o2 + bne,a 6b + ld [%o0], %g4 +0: cmp %g1, 0 +1: be 9f + add %o0, 4, %o0 + ldub [%o0 - 4], %g4 + cmp %g4, %o1 + be 4f + cmp %g1, 1 + be 9f + ldub [%o0 - 3], %g4 + cmp %g4, %o1 + be 3f + cmp %g1, 2 + be 9f + ldub [%o0 - 2], %g4 + cmp %g4, %o1 + be 2f + nop +9: retl + clr %o0 + + /* Check every byte. */ +8: srl %g4, 24, %g5 + and %g5, 0xff, %g5 + cmp %g5, %o1 + be 4f + srl %g4, 16, %g5 + and %g5, 0xff, %g5 + cmp %g5, %o1 + be 3f + srl %g4, 8, %g5 + and %g5, 0xff, %g5 + cmp %g5, %o1 + be 2f + and %g4, 0xff, %g5 + cmp %g5, %o1 + be 1f + cmp %o2, 0 + bne,a 6b + ld [%o0], %g4 + b 1b + cmp %g1, 0 +1: retl + sub %o0, 1, %o0 +2: retl + sub %o0, 2, %o0 +3: retl + sub %o0, 3, %o0 +4: retl + sub %o0, 4, %o0 +END(__memchr) + +weak_alias (__memchr, memchr) +#if !__BOUNDED_POINTERS__ +weak_alias (__memchr, __ubp_memchr) +#endif diff --git a/libc/string/sparc/sparc32/memcpy.S b/libc/string/sparc/sparc32/memcpy.S new file mode 100644 index 000000000..d0a80887b --- /dev/null +++ b/libc/string/sparc/sparc32/memcpy.S @@ -0,0 +1,966 @@ +/* Copy SIZE bytes from SRC to DEST. + For SPARC v7. + Copyright (C) 1996, 1999, 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by David S. Miller <davem@caip.rutgers.edu>, + Eddie C. Dost <ecd@skynet.be> and + Jakub Jelinek <jj@ultra.linux.cz>. + + 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. */ + +/* Both these macros have to start with exactly the same insn */ +#define MOVE_BIGCHUNK(src, dst, offset, t0, t1, t2, t3, t4, t5, t6, t7) \ + ldd [%src + offset + 0x00], %t0; \ + ldd [%src + offset + 0x08], %t2; \ + ldd [%src + offset + 0x10], %t4; \ + ldd [%src + offset + 0x18], %t6; \ + st %t0, [%dst + offset + 0x00]; \ + st %t1, [%dst + offset + 0x04]; \ + st %t2, [%dst + offset + 0x08]; \ + st %t3, [%dst + offset + 0x0c]; \ + st %t4, [%dst + offset + 0x10]; \ + st %t5, [%dst + offset + 0x14]; \ + st %t6, [%dst + offset + 0x18]; \ + st %t7, [%dst + offset + 0x1c]; + +#define MOVE_BIGALIGNCHUNK(src, dst, offset, t0, t1, t2, t3, t4, t5, t6, t7) \ + ldd [%src + offset + 0x00], %t0; \ + ldd [%src + offset + 0x08], %t2; \ + ldd [%src + offset + 0x10], %t4; \ + ldd [%src + offset + 0x18], %t6; \ + std %t0, [%dst + offset + 0x00]; \ + std %t2, [%dst + offset + 0x08]; \ + std %t4, [%dst + offset + 0x10]; \ + std %t6, [%dst + offset + 0x18]; + +#define MOVE_LASTCHUNK(src, dst, offset, t0, t1, t2, t3) \ + ldd [%src - offset - 0x10], %t0; \ + ldd [%src - offset - 0x08], %t2; \ + st %t0, [%dst - offset - 0x10]; \ + st %t1, [%dst - offset - 0x0c]; \ + st %t2, [%dst - offset - 0x08]; \ + st %t3, [%dst - offset - 0x04]; + +#define MOVE_LASTALIGNCHUNK(src, dst, offset, t0, t1, t2, t3) \ + ldd [%src - offset - 0x10], %t0; \ + ldd [%src - offset - 0x08], %t2; \ + std %t0, [%dst - offset - 0x10]; \ + std %t2, [%dst - offset - 0x08]; + +#define MOVE_SHORTCHUNK(src, dst, offset, t0, t1) \ + ldub [%src - offset - 0x02], %t0; \ + ldub [%src - offset - 0x01], %t1; \ + stb %t0, [%dst - offset - 0x02]; \ + stb %t1, [%dst - offset - 0x01]; + +/* Both these macros have to start with exactly the same insn */ +#define RMOVE_BIGCHUNK(src, dst, offset, t0, t1, t2, t3, t4, t5, t6, t7) \ + ldd [%src - offset - 0x20], %t0; \ + ldd [%src - offset - 0x18], %t2; \ + ldd [%src - offset - 0x10], %t4; \ + ldd [%src - offset - 0x08], %t6; \ + st %t0, [%dst - offset - 0x20]; \ + st %t1, [%dst - offset - 0x1c]; \ + st %t2, [%dst - offset - 0x18]; \ + st %t3, [%dst - offset - 0x14]; \ + st %t4, [%dst - offset - 0x10]; \ + st %t5, [%dst - offset - 0x0c]; \ + st %t6, [%dst - offset - 0x08]; \ + st %t7, [%dst - offset - 0x04]; + +#define RMOVE_BIGALIGNCHUNK(src, dst, offset, t0, t1, t2, t3, t4, t5, t6, t7) \ + ldd [%src - offset - 0x20], %t0; \ + ldd [%src - offset - 0x18], %t2; \ + ldd [%src - offset - 0x10], %t4; \ + ldd [%src - offset - 0x08], %t6; \ + std %t0, [%dst - offset - 0x20]; \ + std %t2, [%dst - offset - 0x18]; \ + std %t4, [%dst - offset - 0x10]; \ + std %t6, [%dst - offset - 0x08]; + +#define RMOVE_LASTCHUNK(src, dst, offset, t0, t1, t2, t3) \ + ldd [%src + offset + 0x00], %t0; \ + ldd [%src + offset + 0x08], %t2; \ + st %t0, [%dst + offset + 0x00]; \ + st %t1, [%dst + offset + 0x04]; \ + st %t2, [%dst + offset + 0x08]; \ + st %t3, [%dst + offset + 0x0c]; + +#define RMOVE_SHORTCHUNK(src, dst, offset, t0, t1) \ + ldub [%src + offset + 0x00], %t0; \ + ldub [%src + offset + 0x01], %t1; \ + stb %t0, [%dst + offset + 0x00]; \ + stb %t1, [%dst + offset + 0x01]; + +#define SMOVE_CHUNK(src, dst, offset, t0, t1, t2, t3, t4, t5, t6, prev, shil, shir, offset2) \ + ldd [%src + offset + 0x00], %t0; \ + ldd [%src + offset + 0x08], %t2; \ + srl %t0, shir, %t5; \ + srl %t1, shir, %t6; \ + sll %t0, shil, %t0; \ + or %t5, %prev, %t5; \ + sll %t1, shil, %prev; \ + or %t6, %t0, %t0; \ + srl %t2, shir, %t1; \ + srl %t3, shir, %t6; \ + sll %t2, shil, %t2; \ + or %t1, %prev, %t1; \ + std %t4, [%dst + offset + offset2 - 0x04]; \ + std %t0, [%dst + offset + offset2 + 0x04]; \ + sll %t3, shil, %prev; \ + or %t6, %t2, %t4; + +#define SMOVE_ALIGNCHUNK(src, dst, offset, t0, t1, t2, t3, t4, t5, t6, prev, shil, shir, offset2) \ + ldd [%src + offset + 0x00], %t0; \ + ldd [%src + offset + 0x08], %t2; \ + srl %t0, shir, %t4; \ + srl %t1, shir, %t5; \ + sll %t0, shil, %t6; \ + or %t4, %prev, %t0; \ + sll %t1, shil, %prev; \ + or %t5, %t6, %t1; \ + srl %t2, shir, %t4; \ + srl %t3, shir, %t5; \ + sll %t2, shil, %t6; \ + or %t4, %prev, %t2; \ + sll %t3, shil, %prev; \ + or %t5, %t6, %t3; \ + std %t0, [%dst + offset + offset2 + 0x00]; \ + std %t2, [%dst + offset + offset2 + 0x08]; + + .text + .align 4 + +70: andcc %o1, 1, %g0 + be 4f + andcc %o1, 2, %g0 + + ldub [%o1 - 1], %g2 + sub %o1, 1, %o1 + stb %g2, [%o0 - 1] + sub %o2, 1, %o2 + be 3f + sub %o0, 1, %o0 +4: lduh [%o1 - 2], %g2 + sub %o1, 2, %o1 + sth %g2, [%o0 - 2] + sub %o2, 2, %o2 + b 3f + sub %o0, 2, %o0 + +ENTRY(bcopy) + mov %o0, %o3 + mov %o1, %o0 + mov %o3, %o1 +END(bcopy) +ENTRY(memmove) + cmp %o0, %o1 + st %o0, [%sp + 64] + bleu 9f + sub %o0, %o1, %o4 + + add %o1, %o2, %o3 + cmp %o3, %o0 + bleu 0f + andcc %o4, 3, %o5 + + add %o1, %o2, %o1 + add %o0, %o2, %o0 + bne 77f + cmp %o2, 15 + bleu 91f + andcc %o1, 3, %g0 + bne 70b +3: andcc %o1, 4, %g0 + + be 2f + mov %o2, %g1 + + ld [%o1 - 4], %o4 + sub %g1, 4, %g1 + st %o4, [%o0 - 4] + sub %o1, 4, %o1 + sub %o0, 4, %o0 +2: andcc %g1, 0xffffff80, %g6 + be 3f + andcc %o0, 4, %g0 + + be 74f + 4 +5: RMOVE_BIGCHUNK(o1, o0, 0x00, o2, o3, o4, o5, g2, g3, g4, g5) + RMOVE_BIGCHUNK(o1, o0, 0x20, o2, o3, o4, o5, g2, g3, g4, g5) + RMOVE_BIGCHUNK(o1, o0, 0x40, o2, o3, o4, o5, g2, g3, g4, g5) + RMOVE_BIGCHUNK(o1, o0, 0x60, o2, o3, o4, o5, g2, g3, g4, g5) + subcc %g6, 128, %g6 + sub %o1, 128, %o1 + bne 5b + sub %o0, 128, %o0 + +3: andcc %g1, 0x70, %g6 + be 72f + andcc %g1, 8, %g0 + + srl %g6, 1, %o4 + mov %o7, %g2 + add %g6, %o4, %o4 +101: call 100f + sub %o1, %g6, %o1 + mov %g2, %o7 + jmpl %o5 + (72f - 101b), %g0 + sub %o0, %g6, %o0 + +71: RMOVE_LASTCHUNK(o1, o0, 0x60, g2, g3, g4, g5) + RMOVE_LASTCHUNK(o1, o0, 0x50, g2, g3, g4, g5) + RMOVE_LASTCHUNK(o1, o0, 0x40, g2, g3, g4, g5) + RMOVE_LASTCHUNK(o1, o0, 0x30, g2, g3, g4, g5) + RMOVE_LASTCHUNK(o1, o0, 0x20, g2, g3, g4, g5) + RMOVE_LASTCHUNK(o1, o0, 0x10, g2, g3, g4, g5) + RMOVE_LASTCHUNK(o1, o0, 0x00, g2, g3, g4, g5) +72: be 73f + andcc %g1, 4, %g0 + + ldd [%o1 - 0x08], %g2 + sub %o0, 8, %o0 + sub %o1, 8, %o1 + st %g2, [%o0] + st %g3, [%o0 + 0x04] +73: be 1f + andcc %g1, 2, %g0 + + ld [%o1 - 4], %g2 + sub %o1, 4, %o1 + st %g2, [%o0 - 4] + sub %o0, 4, %o0 +1: be 1f + andcc %g1, 1, %g0 + + lduh [%o1 - 2], %g2 + sub %o1, 2, %o1 + sth %g2, [%o0 - 2] + sub %o0, 2, %o0 +1: be 1f + nop + + ldub [%o1 - 1], %g2 + stb %g2, [%o0 - 1] +1: retl + ld [%sp + 64], %o0 + +74: RMOVE_BIGALIGNCHUNK(o1, o0, 0x00, o2, o3, o4, o5, g2, g3, g4, g5) + RMOVE_BIGALIGNCHUNK(o1, o0, 0x20, o2, o3, o4, o5, g2, g3, g4, g5) + RMOVE_BIGALIGNCHUNK(o1, o0, 0x40, o2, o3, o4, o5, g2, g3, g4, g5) + RMOVE_BIGALIGNCHUNK(o1, o0, 0x60, o2, o3, o4, o5, g2, g3, g4, g5) + subcc %g6, 128, %g6 + sub %o1, 128, %o1 + bne 74b + sub %o0, 128, %o0 + + andcc %g1, 0x70, %g6 + be 72b + andcc %g1, 8, %g0 + + srl %g6, 1, %o4 + mov %o7, %g2 + add %g6, %o4, %o4 +102: call 100f + sub %o1, %g6, %o1 + mov %g2, %o7 + jmpl %o5 + (72b - 102b), %g0 + sub %o0, %g6, %o0 + +75: and %o2, 0xe, %o3 + mov %o7, %g2 + sll %o3, 3, %o4 + sub %o0, %o3, %o0 +103: call 100f + sub %o1, %o3, %o1 + mov %g2, %o7 + jmpl %o5 + (76f - 103b), %g0 + andcc %o2, 1, %g0 + + RMOVE_SHORTCHUNK(o1, o0, 0x0c, g2, g3) + RMOVE_SHORTCHUNK(o1, o0, 0x0a, g2, g3) + RMOVE_SHORTCHUNK(o1, o0, 0x08, g2, g3) + RMOVE_SHORTCHUNK(o1, o0, 0x06, g2, g3) + RMOVE_SHORTCHUNK(o1, o0, 0x04, g2, g3) + RMOVE_SHORTCHUNK(o1, o0, 0x02, g2, g3) + RMOVE_SHORTCHUNK(o1, o0, 0x00, g2, g3) + +76: be 1f + nop + ldub [%o1 - 1], %g2 + stb %g2, [%o0 - 1] +1: retl + ld [%sp + 64], %o0 + +91: bne 75b + andcc %o2, 8, %g0 + + be 1f + andcc %o2, 4, %g0 + + ld [%o1 - 0x08], %g2 + ld [%o1 - 0x04], %g3 + sub %o1, 8, %o1 + st %g2, [%o0 - 0x08] + st %g3, [%o0 - 0x04] + sub %o0, 8, %o0 +1: b 73b + mov %o2, %g1 + +77: cmp %o2, 15 + bleu 75b + andcc %o0, 3, %g0 + be 64f + andcc %o0, 1, %g0 + be 63f + andcc %o0, 2, %g0 + ldub [%o1 - 1], %g5 + sub %o1, 1, %o1 + stb %g5, [%o0 - 1] + sub %o0, 1, %o0 + be 64f + sub %o2, 1, %o2 + +63: ldub [%o1 - 1], %g5 + sub %o1, 2, %o1 + stb %g5, [%o0 - 1] + sub %o0, 2, %o0 + ldub [%o1], %g5 + sub %o2, 2, %o2 + stb %g5, [%o0] +64: and %o1, 3, %g2 + and %o1, -4, %o1 + and %o2, 0xc, %g3 + add %o1, 4, %o1 + cmp %g3, 4 + sll %g2, 3, %g4 + mov 32, %g2 + be 4f + sub %g2, %g4, %g6 + + blu 3f + cmp %g3, 8 + + be 2f + srl %o2, 2, %g3 + + ld [%o1 - 4], %o3 + add %o0, -8, %o0 + ld [%o1 - 8], %o4 + add %o1, -16, %o1 + b 7f + add %g3, 1, %g3 +2: ld [%o1 - 4], %o4 + add %o0, -4, %o0 + ld [%o1 - 8], %g1 + add %o1, -12, %o1 + b 8f + add %g3, 2, %g3 +3: ld [%o1 - 4], %o5 + add %o0, -12, %o0 + ld [%o1 - 8], %o3 + add %o1, -20, %o1 + b 6f + srl %o2, 2, %g3 +4: ld [%o1 - 4], %g1 + srl %o2, 2, %g3 + ld [%o1 - 8], %o5 + add %o1, -24, %o1 + add %o0, -16, %o0 + add %g3, -1, %g3 + + ld [%o1 + 12], %o3 +5: sll %o5, %g4, %g2 + srl %g1, %g6, %g5 + or %g2, %g5, %g2 + st %g2, [%o0 + 12] +6: ld [%o1 + 8], %o4 + sll %o3, %g4, %g2 + srl %o5, %g6, %g5 + or %g2, %g5, %g2 + st %g2, [%o0 + 8] +7: ld [%o1 + 4], %g1 + sll %o4, %g4, %g2 + srl %o3, %g6, %g5 + or %g2, %g5, %g2 + st %g2, [%o0 + 4] +8: ld [%o1], %o5 + sll %g1, %g4, %g2 + srl %o4, %g6, %g5 + addcc %g3, -4, %g3 + or %g2, %g5, %g2 + add %o1, -16, %o1 + st %g2, [%o0] + add %o0, -16, %o0 + bne,a 5b + ld [%o1 + 12], %o3 + sll %o5, %g4, %g2 + srl %g1, %g6, %g5 + srl %g4, 3, %g3 + or %g2, %g5, %g2 + add %o1, %g3, %o1 + andcc %o2, 2, %g0 + st %g2, [%o0 + 12] + be 1f + andcc %o2, 1, %g0 + + ldub [%o1 + 15], %g5 + add %o1, -2, %o1 + stb %g5, [%o0 + 11] + add %o0, -2, %o0 + ldub [%o1 + 16], %g5 + stb %g5, [%o0 + 12] +1: be 1f + nop + ldub [%o1 + 15], %g5 + stb %g5, [%o0 + 11] +1: retl + ld [%sp + 64], %o0 + +78: andcc %o1, 1, %g0 + be 4f + andcc %o1, 2, %g0 + + ldub [%o1], %g2 + add %o1, 1, %o1 + stb %g2, [%o0] + sub %o2, 1, %o2 + bne 3f + add %o0, 1, %o0 +4: lduh [%o1], %g2 + add %o1, 2, %o1 + sth %g2, [%o0] + sub %o2, 2, %o2 + b 3f + add %o0, 2, %o0 +END(memmove) + +ENTRY(memcpy) /* %o0=dst %o1=src %o2=len */ + sub %o0, %o1, %o4 + st %o0, [%sp + 64] +9: andcc %o4, 3, %o5 +0: bne 86f + cmp %o2, 15 + + bleu 90f + andcc %o1, 3, %g0 + + bne 78b +3: andcc %o1, 4, %g0 + + be 2f + mov %o2, %g1 + + ld [%o1], %o4 + sub %g1, 4, %g1 + st %o4, [%o0] + add %o1, 4, %o1 + add %o0, 4, %o0 +2: andcc %g1, 0xffffff80, %g6 + be 3f + andcc %o0, 4, %g0 + + be 82f + 4 +5: MOVE_BIGCHUNK(o1, o0, 0x00, o2, o3, o4, o5, g2, g3, g4, g5) + MOVE_BIGCHUNK(o1, o0, 0x20, o2, o3, o4, o5, g2, g3, g4, g5) + MOVE_BIGCHUNK(o1, o0, 0x40, o2, o3, o4, o5, g2, g3, g4, g5) + MOVE_BIGCHUNK(o1, o0, 0x60, o2, o3, o4, o5, g2, g3, g4, g5) + subcc %g6, 128, %g6 + add %o1, 128, %o1 + bne 5b + add %o0, 128, %o0 +3: andcc %g1, 0x70, %g6 + be 80f + andcc %g1, 8, %g0 + + s |