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611 lines
17 KiB
ArmAsm
611 lines
17 KiB
ArmAsm
/* Copy SIZE bytes from SRC to DEST.
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For UltraSPARC-III.
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Copyright (C) 2001, 2003 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by David S. Miller (davem@redhat.com)
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <sysdep.h>
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#define ASI_BLK_P 0xf0
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#define FPRS_FEF 0x04
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#define VISEntryHalf rd %fprs, %o5; wr %g0, FPRS_FEF, %fprs
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#define VISExitHalf and %o5, FPRS_FEF, %o5; wr %o5, 0x0, %fprs
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#ifndef XCC
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#define USE_BPR
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#define XCC xcc
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#endif
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.register %g2,#scratch
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.register %g3,#scratch
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.register %g6,#scratch
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.text
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.align 32
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ENTRY(bcopy)
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sub %o1, %o0, %o4
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mov %o0, %g4
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cmp %o4, %o2
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mov %o1, %o0
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bgeu,pt %XCC, 100f
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mov %g4, %o1
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#ifndef USE_BPR
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srl %o2, 0, %o2
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#endif
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brnz,pn %o2, 220f
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add %o0, %o2, %o0
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retl
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nop
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END(bcopy)
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/* Special/non-trivial issues of this code:
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*
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* 1) %o5 is preserved from VISEntryHalf to VISExitHalf
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* 2) Only low 32 FPU registers are used so that only the
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* lower half of the FPU register set is dirtied by this
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* code. This is especially important in the kernel.
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* 3) This code never prefetches cachelines past the end
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* of the source buffer.
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*
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* The cheetah's flexible spine, oversized liver, enlarged heart,
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* slender muscular body, and claws make it the swiftest hunter
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* in Africa and the fastest animal on land. Can reach speeds
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* of up to 2.4GB per second.
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*/
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.align 32
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ENTRY(memcpy)
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100: /* %o0=dst, %o1=src, %o2=len */
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mov %o0, %g5
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cmp %o2, 0
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be,pn %XCC, out
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218: or %o0, %o1, %o3
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cmp %o2, 16
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bleu,a,pn %XCC, small_copy
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or %o3, %o2, %o3
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cmp %o2, 256
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blu,pt %XCC, medium_copy
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andcc %o3, 0x7, %g0
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ba,pt %xcc, enter
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andcc %o0, 0x3f, %g2
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/* Here len >= 256 and condition codes reflect execution
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* of "andcc %o0, 0x7, %g2", done by caller.
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*/
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.align 64
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enter:
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/* Is 'dst' already aligned on an 64-byte boundary? */
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be,pt %XCC, 2f
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/* Compute abs((dst & 0x3f) - 0x40) into %g2. This is the number
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* of bytes to copy to make 'dst' 64-byte aligned. We pre-
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* subtract this from 'len'.
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*/
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sub %g2, 0x40, %g2
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sub %g0, %g2, %g2
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sub %o2, %g2, %o2
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/* Copy %g2 bytes from src to dst, one byte at a time. */
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1: ldub [%o1 + 0x00], %o3
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add %o1, 0x1, %o1
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add %o0, 0x1, %o0
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subcc %g2, 0x1, %g2
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bg,pt %XCC, 1b
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stb %o3, [%o0 + -1]
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2: VISEntryHalf
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and %o1, 0x7, %g1
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ba,pt %xcc, begin
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alignaddr %o1, %g0, %o1
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.align 64
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begin:
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prefetch [%o1 + 0x000], #one_read
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prefetch [%o1 + 0x040], #one_read
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andn %o2, (0x40 - 1), %o4
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prefetch [%o1 + 0x080], #one_read
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prefetch [%o1 + 0x0c0], #one_read
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ldd [%o1 + 0x000], %f0
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prefetch [%o1 + 0x100], #one_read
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ldd [%o1 + 0x008], %f2
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prefetch [%o1 + 0x140], #one_read
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ldd [%o1 + 0x010], %f4
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prefetch [%o1 + 0x180], #one_read
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faligndata %f0, %f2, %f16
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ldd [%o1 + 0x018], %f6
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faligndata %f2, %f4, %f18
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ldd [%o1 + 0x020], %f8
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faligndata %f4, %f6, %f20
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ldd [%o1 + 0x028], %f10
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faligndata %f6, %f8, %f22
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ldd [%o1 + 0x030], %f12
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faligndata %f8, %f10, %f24
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ldd [%o1 + 0x038], %f14
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faligndata %f10, %f12, %f26
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ldd [%o1 + 0x040], %f0
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sub %o4, 0x80, %o4
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add %o1, 0x40, %o1
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ba,pt %xcc, loop
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srl %o4, 6, %o3
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.align 64
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loop:
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ldd [%o1 + 0x008], %f2
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faligndata %f12, %f14, %f28
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ldd [%o1 + 0x010], %f4
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faligndata %f14, %f0, %f30
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stda %f16, [%o0] ASI_BLK_P
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ldd [%o1 + 0x018], %f6
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faligndata %f0, %f2, %f16
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ldd [%o1 + 0x020], %f8
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faligndata %f2, %f4, %f18
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ldd [%o1 + 0x028], %f10
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faligndata %f4, %f6, %f20
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ldd [%o1 + 0x030], %f12
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faligndata %f6, %f8, %f22
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ldd [%o1 + 0x038], %f14
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faligndata %f8, %f10, %f24
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ldd [%o1 + 0x040], %f0
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prefetch [%o1 + 0x180], #one_read
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faligndata %f10, %f12, %f26
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subcc %o3, 0x01, %o3
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add %o1, 0x40, %o1
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bg,pt %XCC, loop
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add %o0, 0x40, %o0
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/* Finally we copy the last full 64-byte block. */
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loopfini:
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ldd [%o1 + 0x008], %f2
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faligndata %f12, %f14, %f28
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ldd [%o1 + 0x010], %f4
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faligndata %f14, %f0, %f30
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stda %f16, [%o0] ASI_BLK_P
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ldd [%o1 + 0x018], %f6
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faligndata %f0, %f2, %f16
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ldd [%o1 + 0x020], %f8
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faligndata %f2, %f4, %f18
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ldd [%o1 + 0x028], %f10
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faligndata %f4, %f6, %f20
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ldd [%o1 + 0x030], %f12
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faligndata %f6, %f8, %f22
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ldd [%o1 + 0x038], %f14
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faligndata %f8, %f10, %f24
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cmp %g1, 0
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be,pt %XCC, 1f
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add %o0, 0x40, %o0
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ldd [%o1 + 0x040], %f0
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1: faligndata %f10, %f12, %f26
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faligndata %f12, %f14, %f28
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faligndata %f14, %f0, %f30
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stda %f16, [%o0] ASI_BLK_P
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add %o0, 0x40, %o0
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add %o1, 0x40, %o1
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membar #Sync
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/* Now we copy the (len modulo 64) bytes at the end.
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* Note how we borrow the %f0 loaded above.
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*
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* Also notice how this code is careful not to perform a
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* load past the end of the src buffer.
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*/
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loopend:
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and %o2, 0x3f, %o2
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andcc %o2, 0x38, %g2
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be,pn %XCC, endcruft
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subcc %g2, 0x8, %g2
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be,pn %XCC, endcruft
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cmp %g1, 0
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be,a,pt %XCC, 1f
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ldd [%o1 + 0x00], %f0
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1: ldd [%o1 + 0x08], %f2
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add %o1, 0x8, %o1
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sub %o2, 0x8, %o2
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subcc %g2, 0x8, %g2
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faligndata %f0, %f2, %f8
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std %f8, [%o0 + 0x00]
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be,pn %XCC, endcruft
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add %o0, 0x8, %o0
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ldd [%o1 + 0x08], %f0
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add %o1, 0x8, %o1
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sub %o2, 0x8, %o2
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subcc %g2, 0x8, %g2
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faligndata %f2, %f0, %f8
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std %f8, [%o0 + 0x00]
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bne,pn %XCC, 1b
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add %o0, 0x8, %o0
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/* If anything is left, we copy it one byte at a time.
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* Note that %g1 is (src & 0x3) saved above before the
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* alignaddr was performed.
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*/
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endcruft:
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cmp %o2, 0
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add %o1, %g1, %o1
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VISExitHalf
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be,pn %XCC, out
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sub %o0, %o1, %o3
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andcc %g1, 0x7, %g0
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bne,pn %icc, small_copy_unaligned
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andcc %o2, 0x8, %g0
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be,pt %icc, 1f
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nop
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ldx [%o1], %o5
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stx %o5, [%o1 + %o3]
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add %o1, 0x8, %o1
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1: andcc %o2, 0x4, %g0
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be,pt %icc, 1f
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nop
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lduw [%o1], %o5
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stw %o5, [%o1 + %o3]
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add %o1, 0x4, %o1
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1: andcc %o2, 0x2, %g0
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be,pt %icc, 1f
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nop
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lduh [%o1], %o5
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sth %o5, [%o1 + %o3]
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add %o1, 0x2, %o1
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1: andcc %o2, 0x1, %g0
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be,pt %icc, out
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nop
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ldub [%o1], %o5
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ba,pt %xcc, out
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stb %o5, [%o1 + %o3]
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medium_copy: /* 16 < len <= 64 */
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bne,pn %XCC, small_copy_unaligned
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sub %o0, %o1, %o3
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medium_copy_aligned:
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andn %o2, 0x7, %o4
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and %o2, 0x7, %o2
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1: subcc %o4, 0x8, %o4
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ldx [%o1], %o5
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stx %o5, [%o1 + %o3]
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bgu,pt %XCC, 1b
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add %o1, 0x8, %o1
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andcc %o2, 0x4, %g0
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be,pt %XCC, 1f
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nop
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sub %o2, 0x4, %o2
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lduw [%o1], %o5
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stw %o5, [%o1 + %o3]
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add %o1, 0x4, %o1
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1: cmp %o2, 0
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be,pt %XCC, out
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nop
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ba,pt %xcc, small_copy_unaligned
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nop
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small_copy: /* 0 < len <= 16 */
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andcc %o3, 0x3, %g0
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bne,pn %XCC, small_copy_unaligned
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sub %o0, %o1, %o3
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small_copy_aligned:
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subcc %o2, 4, %o2
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lduw [%o1], %g1
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stw %g1, [%o1 + %o3]
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bgu,pt %XCC, small_copy_aligned
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add %o1, 4, %o1
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out: retl
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mov %g5, %o0
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.align 32
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small_copy_unaligned:
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subcc %o2, 1, %o2
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ldub [%o1], %g1
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stb %g1, [%o1 + %o3]
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bgu,pt %XCC, small_copy_unaligned
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add %o1, 1, %o1
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retl
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mov %g5, %o0
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END(memcpy)
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#define RMOVE_BIGCHUNK(src, dst, offset, t0, t1, t2, t3) \
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ldx [%src - offset - 0x20], %t0; \
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ldx [%src - offset - 0x18], %t1; \
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ldx [%src - offset - 0x10], %t2; \
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ldx [%src - offset - 0x08], %t3; \
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stw %t0, [%dst - offset - 0x1c]; \
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srlx %t0, 32, %t0; \
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stw %t0, [%dst - offset - 0x20]; \
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stw %t1, [%dst - offset - 0x14]; \
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srlx %t1, 32, %t1; \
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stw %t1, [%dst - offset - 0x18]; \
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stw %t2, [%dst - offset - 0x0c]; \
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srlx %t2, 32, %t2; \
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stw %t2, [%dst - offset - 0x10]; \
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stw %t3, [%dst - offset - 0x04]; \
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srlx %t3, 32, %t3; \
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stw %t3, [%dst - offset - 0x08];
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#define RMOVE_BIGALIGNCHUNK(src, dst, offset, t0, t1, t2, t3) \
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ldx [%src - offset - 0x20], %t0; \
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ldx [%src - offset - 0x18], %t1; \
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ldx [%src - offset - 0x10], %t2; \
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ldx [%src - offset - 0x08], %t3; \
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stx %t0, [%dst - offset - 0x20]; \
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stx %t1, [%dst - offset - 0x18]; \
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stx %t2, [%dst - offset - 0x10]; \
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stx %t3, [%dst - offset - 0x08]; \
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ldx [%src - offset - 0x40], %t0; \
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ldx [%src - offset - 0x38], %t1; \
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ldx [%src - offset - 0x30], %t2; \
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ldx [%src - offset - 0x28], %t3; \
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stx %t0, [%dst - offset - 0x40]; \
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stx %t1, [%dst - offset - 0x38]; \
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stx %t2, [%dst - offset - 0x30]; \
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stx %t3, [%dst - offset - 0x28];
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#define RMOVE_LASTCHUNK(src, dst, offset, t0, t1, t2, t3) \
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ldx [%src + offset + 0x00], %t0; \
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ldx [%src + offset + 0x08], %t1; \
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stw %t0, [%dst + offset + 0x04]; \
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srlx %t0, 32, %t2; \
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stw %t2, [%dst + offset + 0x00]; \
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stw %t1, [%dst + offset + 0x0c]; \
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srlx %t1, 32, %t3; \
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stw %t3, [%dst + offset + 0x08];
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#define RMOVE_LASTALIGNCHUNK(src, dst, offset, t0, t1) \
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ldx [%src + offset + 0x00], %t0; \
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ldx [%src + offset + 0x08], %t1; \
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stx %t0, [%dst + offset + 0x00]; \
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stx %t1, [%dst + offset + 0x08];
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.align 32
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228: andcc %o2, 1, %g0 /* IEU1 Group */
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be,pt %icc, 2f+4 /* CTI */
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1: ldub [%o1 - 1], %o5 /* LOAD Group */
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sub %o1, 1, %o1 /* IEU0 */
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sub %o0, 1, %o0 /* IEU1 */
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subcc %o2, 1, %o2 /* IEU1 Group */
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be,pn %xcc, 229f /* CTI */
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stb %o5, [%o0] /* Store */
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2: ldub [%o1 - 1], %o5 /* LOAD Group */
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sub %o0, 2, %o0 /* IEU0 */
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ldub [%o1 - 2], %g5 /* LOAD Group */
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sub %o1, 2, %o1 /* IEU0 */
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subcc %o2, 2, %o2 /* IEU1 Group */
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stb %o5, [%o0 + 1] /* Store */
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bne,pt %xcc, 2b /* CTI */
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stb %g5, [%o0] /* Store */
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229: retl
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mov %g4, %o0
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.align 32
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ENTRY(memmove)
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mov %o0, %g5
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#ifndef USE_BPR
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srl %o2, 0, %o2 /* IEU1 Group */
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#endif
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brz,pn %o2, out /* CTI Group */
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sub %o0, %o1, %o4 /* IEU0 */
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cmp %o4, %o2 /* IEU1 Group */
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bgeu,pt %XCC, 218b /* CTI */
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mov %o0, %g4 /* IEU0 */
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add %o0, %o2, %o0 /* IEU0 Group */
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220: add %o1, %o2, %o1 /* IEU1 */
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cmp %o2, 15 /* IEU1 Group */
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bleu,pn %xcc, 228b /* CTI */
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andcc %o0, 7, %g2 /* IEU1 Group */
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sub %o0, %o1, %g5 /* IEU0 */
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andcc %g5, 3, %o5 /* IEU1 Group */
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bne,pn %xcc, 232f /* CTI */
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andcc %o1, 3, %g0 /* IEU1 Group */
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be,a,pt %xcc, 236f /* CTI */
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andcc %o1, 4, %g0 /* IEU1 Group */
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andcc %o1, 1, %g0 /* IEU1 Group */
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be,pn %xcc, 4f /* CTI */
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andcc %o1, 2, %g0 /* IEU1 Group */
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ldub [%o1 - 1], %g2 /* Load Group */
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sub %o1, 1, %o1 /* IEU0 */
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sub %o0, 1, %o0 /* IEU1 */
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sub %o2, 1, %o2 /* IEU0 Group */
|
|
be,pn %xcc, 5f /* CTI Group */
|
|
stb %g2, [%o0] /* Store */
|
|
4: lduh [%o1 - 2], %g2 /* Load Group */
|
|
sub %o1, 2, %o1 /* IEU0 */
|
|
sub %o0, 2, %o0 /* IEU1 */
|
|
sub %o2, 2, %o2 /* IEU0 */
|
|
sth %g2, [%o0] /* Store Group + bubble */
|
|
5: andcc %o1, 4, %g0 /* IEU1 */
|
|
236: be,a,pn %xcc, 2f /* CTI */
|
|
andcc %o2, -128, %g6 /* IEU1 Group */
|
|
lduw [%o1 - 4], %g5 /* Load Group */
|
|
sub %o1, 4, %o1 /* IEU0 */
|
|
sub %o0, 4, %o0 /* IEU1 */
|
|
sub %o2, 4, %o2 /* IEU0 Group */
|
|
stw %g5, [%o0] /* Store */
|
|
andcc %o2, -128, %g6 /* IEU1 Group */
|
|
2: be,pn %xcc, 235f /* CTI */
|
|
andcc %o0, 4, %g0 /* IEU1 Group */
|
|
be,pn %xcc, 282f + 4 /* CTI Group */
|
|
5: RMOVE_BIGCHUNK(o1, o0, 0x00, g1, g3, g5, o5)
|
|
RMOVE_BIGCHUNK(o1, o0, 0x20, g1, g3, g5, o5)
|
|
RMOVE_BIGCHUNK(o1, o0, 0x40, g1, g3, g5, o5)
|
|
RMOVE_BIGCHUNK(o1, o0, 0x60, g1, g3, g5, o5)
|
|
subcc %g6, 128, %g6 /* IEU1 Group */
|
|
sub %o1, 128, %o1 /* IEU0 */
|
|
bne,pt %xcc, 5b /* CTI */
|
|
sub %o0, 128, %o0 /* IEU0 Group */
|
|
235: andcc %o2, 0x70, %g6 /* IEU1 Group */
|
|
41: be,pn %xcc, 280f /* CTI */
|
|
andcc %o2, 8, %g0 /* IEU1 Group */
|
|
/* Clk1 8-( */
|
|
/* Clk2 8-( */
|
|
/* Clk3 8-( */
|
|
/* Clk4 8-( */
|
|
279: rd %pc, %o5 /* PDU Group */
|
|
sll %g6, 1, %g5 /* IEU0 Group */
|
|
sub %o1, %g6, %o1 /* IEU1 */
|
|
sub %o5, %g5, %o5 /* IEU0 Group */
|
|
jmpl %o5 + %lo(280f - 279b), %g0 /* CTI Group brk forced*/
|
|
sub %o0, %g6, %o0 /* IEU0 Group */
|
|
RMOVE_LASTCHUNK(o1, o0, 0x60, g2, g3, g5, o5)
|
|
RMOVE_LASTCHUNK(o1, o0, 0x50, g2, g3, g5, o5)
|
|
RMOVE_LASTCHUNK(o1, o0, 0x40, g2, g3, g5, o5)
|
|
RMOVE_LASTCHUNK(o1, o0, 0x30, g2, g3, g5, o5)
|
|
RMOVE_LASTCHUNK(o1, o0, 0x20, g2, g3, g5, o5)
|
|
RMOVE_LASTCHUNK(o1, o0, 0x10, g2, g3, g5, o5)
|
|
RMOVE_LASTCHUNK(o1, o0, 0x00, g2, g3, g5, o5)
|
|
280: be,pt %xcc, 281f /* CTI */
|
|
andcc %o2, 4, %g0 /* IEU1 */
|
|
ldx [%o1 - 8], %g2 /* Load Group */
|
|
sub %o0, 8, %o0 /* IEU0 */
|
|
stw %g2, [%o0 + 4] /* Store Group */
|
|
sub %o1, 8, %o1 /* IEU1 */
|
|
srlx %g2, 32, %g2 /* IEU0 Group */
|
|
stw %g2, [%o0] /* Store */
|
|
281: be,pt %xcc, 1f /* CTI */
|
|
andcc %o2, 2, %g0 /* IEU1 Group */
|
|
lduw [%o1 - 4], %g2 /* Load Group */
|
|
sub %o1, 4, %o1 /* IEU0 */
|
|
stw %g2, [%o0 - 4] /* Store Group */
|
|
sub %o0, 4, %o0 /* IEU0 */
|
|
1: be,pt %xcc, 1f /* CTI */
|
|
andcc %o2, 1, %g0 /* IEU1 Group */
|
|
lduh [%o1 - 2], %g2 /* Load Group */
|
|
sub %o1, 2, %o1 /* IEU0 */
|
|
sth %g2, [%o0 - 2] /* Store Group */
|
|
sub %o0, 2, %o0 /* IEU0 */
|
|
1: be,pt %xcc, 211f /* CTI */
|
|
nop /* IEU1 */
|
|
ldub [%o1 - 1], %g2 /* Load Group */
|
|
stb %g2, [%o0 - 1] /* Store Group + bubble */
|
|
211: retl
|
|
mov %g4, %o0
|
|
|
|
282: RMOVE_BIGALIGNCHUNK(o1, o0, 0x00, g1, g3, g5, o5)
|
|
RMOVE_BIGALIGNCHUNK(o1, o0, 0x40, g1, g3, g5, o5)
|
|
subcc %g6, 128, %g6 /* IEU1 Group */
|
|
sub %o1, 128, %o1 /* IEU0 */
|
|
bne,pt %xcc, 282b /* CTI */
|
|
sub %o0, 128, %o0 /* IEU0 Group */
|
|
andcc %o2, 0x70, %g6 /* IEU1 */
|
|
be,pn %xcc, 284f /* CTI */
|
|
andcc %o2, 8, %g0 /* IEU1 Group */
|
|
/* Clk1 8-( */
|
|
/* Clk2 8-( */
|
|
/* Clk3 8-( */
|
|
/* Clk4 8-( */
|
|
283: rd %pc, %o5 /* PDU Group */
|
|
sub %o1, %g6, %o1 /* IEU0 Group */
|
|
sub %o5, %g6, %o5 /* IEU1 */
|
|
jmpl %o5 + %lo(284f - 283b), %g0 /* CTI Group brk forced*/
|
|
sub %o0, %g6, %o0 /* IEU0 Group */
|
|
RMOVE_LASTALIGNCHUNK(o1, o0, 0x60, g2, g3)
|
|
RMOVE_LASTALIGNCHUNK(o1, o0, 0x50, g2, g3)
|
|
RMOVE_LASTALIGNCHUNK(o1, o0, 0x40, g2, g3)
|
|
RMOVE_LASTALIGNCHUNK(o1, o0, 0x30, g2, g3)
|
|
RMOVE_LASTALIGNCHUNK(o1, o0, 0x20, g2, g3)
|
|
RMOVE_LASTALIGNCHUNK(o1, o0, 0x10, g2, g3)
|
|
RMOVE_LASTALIGNCHUNK(o1, o0, 0x00, g2, g3)
|
|
284: be,pt %xcc, 285f /* CTI Group */
|
|
andcc %o2, 4, %g0 /* IEU1 */
|
|
ldx [%o1 - 8], %g2 /* Load Group */
|
|
sub %o0, 8, %o0 /* IEU0 */
|
|
sub %o1, 8, %o1 /* IEU0 Group */
|
|
stx %g2, [%o0] /* Store */
|
|
285: be,pt %xcc, 1f /* CTI */
|
|
andcc %o2, 2, %g0 /* IEU1 Group */
|
|
lduw [%o1 - 4], %g2 /* Load Group */
|
|
sub %o0, 4, %o0 /* IEU0 */
|
|
sub %o1, 4, %o1 /* IEU0 Group */
|
|
stw %g2, [%o0] /* Store */
|
|
1: be,pt %xcc, 1f /* CTI */
|
|
andcc %o2, 1, %g0 /* IEU1 Group */
|
|
lduh [%o1 - 2], %g2 /* Load Group */
|
|
sub %o0, 2, %o0 /* IEU0 */
|
|
sub %o1, 2, %o1 /* IEU0 Group */
|
|
sth %g2, [%o0] /* Store */
|
|
1: be,pt %xcc, 1f /* CTI */
|
|
nop /* IEU0 Group */
|
|
ldub [%o1 - 1], %g2 /* Load Group */
|
|
stb %g2, [%o0 - 1] /* Store Group + bubble */
|
|
1: retl
|
|
mov %g4, %o0
|
|
|
|
232: brz,pt %g2, 2f /* CTI Group */
|
|
sub %o2, %g2, %o2 /* IEU0 Group */
|
|
1: ldub [%o1 - 1], %g5 /* Load Group */
|
|
sub %o1, 1, %o1 /* IEU0 */
|
|
sub %o0, 1, %o0 /* IEU1 */
|
|
subcc %g2, 1, %g2 /* IEU1 Group */
|
|
bne,pt %xcc, 1b /* CTI */
|
|
stb %g5, [%o0] /* Store */
|
|
2: andn %o2, 7, %g5 /* IEU0 Group */
|
|
and %o2, 7, %o2 /* IEU1 */
|
|
fmovd %f0, %f2 /* FPU */
|
|
alignaddr %o1, %g0, %g1 /* GRU Group */
|
|
ldd [%g1], %f4 /* Load Group */
|
|
1: ldd [%g1 - 8], %f6 /* Load Group */
|
|
sub %g1, 8, %g1 /* IEU0 Group */
|
|
subcc %g5, 8, %g5 /* IEU1 */
|
|
faligndata %f6, %f4, %f0 /* GRU Group */
|
|
std %f0, [%o0 - 8] /* Store */
|
|
sub %o1, 8, %o1 /* IEU0 Group */
|
|
be,pn %xcc, 233f /* CTI */
|
|
sub %o0, 8, %o0 /* IEU1 */
|
|
ldd [%g1 - 8], %f4 /* Load Group */
|
|
sub %g1, 8, %g1 /* IEU0 */
|
|
subcc %g5, 8, %g5 /* IEU1 */
|
|
faligndata %f4, %f6, %f0 /* GRU Group */
|
|
std %f0, [%o0 - 8] /* Store */
|
|
sub %o1, 8, %o1 /* IEU0 */
|
|
bne,pn %xcc, 1b /* CTI Group */
|
|
sub %o0, 8, %o0 /* IEU0 */
|
|
233: brz,pn %o2, 234f /* CTI Group */
|
|
nop /* IEU0 */
|
|
237: ldub [%o1 - 1], %g5 /* LOAD */
|
|
sub %o1, 1, %o1 /* IEU0 */
|
|
sub %o0, 1, %o0 /* IEU1 */
|
|
subcc %o2, 1, %o2 /* IEU1 */
|
|
bne,pt %xcc, 237b /* CTI */
|
|
stb %g5, [%o0] /* Store Group */
|
|
234: wr %g0, FPRS_FEF, %fprs
|
|
retl
|
|
mov %g4, %o0
|
|
END(memmove)
|
|
|
|
#ifdef USE_BPR
|
|
weak_alias(memcpy, __align_cpy_1)
|
|
weak_alias(memcpy, __align_cpy_2)
|
|
weak_alias(memcpy, __align_cpy_4)
|
|
weak_alias(memcpy, __align_cpy_8)
|
|
weak_alias(memcpy, __align_cpy_16)
|
|
#endif
|
|
libc_hidden_builtin_def (memcpy)
|
|
libc_hidden_builtin_def (memmove)
|