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Diffstat (limited to 'libc/string/sparc/sparc64/sparcv9b/memcpy.S')
-rw-r--r--libc/string/sparc/sparc64/sparcv9b/memcpy.S606
1 files changed, 606 insertions, 0 deletions
diff --git a/libc/string/sparc/sparc64/sparcv9b/memcpy.S b/libc/string/sparc/sparc64/sparcv9b/memcpy.S
new file mode 100644
index 000000000..7f36b7c2c
--- /dev/null
+++ b/libc/string/sparc/sparc64/sparcv9b/memcpy.S
@@ -0,0 +1,606 @@
+/* Copy SIZE bytes from SRC to DEST.
+ For UltraSPARC-III.
+ Copyright (C) 2001, 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by David S. Miller (davem@redhat.com)
+
+ 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. */
+
+#define ASI_BLK_P 0xf0
+#define FPRS_FEF 0x04
+#define VISEntryHalf rd %fprs, %o5; wr %g0, FPRS_FEF, %fprs
+#define VISExitHalf and %o5, FPRS_FEF, %o5; wr %o5, 0x0, %fprs
+
+#ifndef XCC
+#define USE_BPR
+#define XCC xcc
+#endif
+
+ .register %g2,#scratch
+ .register %g3,#scratch
+ .register %g6,#scratch
+
+ .text
+ .align 32
+
+ENTRY(bcopy)
+ sub %o1, %o0, %o4
+ mov %o0, %g4
+ cmp %o4, %o2
+ mov %o1, %o0
+ bgeu,pt %XCC, 100f
+ mov %g4, %o1
+#ifndef USE_BPR
+ srl %o2, 0, %o2
+#endif
+ brnz,pn %o2, 220f
+ add %o0, %o2, %o0
+ retl
+ nop
+END(bcopy)
+
+ /* Special/non-trivial issues of this code:
+ *
+ * 1) %o5 is preserved from VISEntryHalf to VISExitHalf
+ * 2) Only low 32 FPU registers are used so that only the
+ * lower half of the FPU register set is dirtied by this
+ * code. This is especially important in the kernel.
+ * 3) This code never prefetches cachelines past the end
+ * of the source buffer.
+ *
+ * The cheetah's flexible spine, oversized liver, enlarged heart,
+ * slender muscular body, and claws make it the swiftest hunter
+ * in Africa and the fastest animal on land. Can reach speeds
+ * of up to 2.4GB per second.
+ */
+ .align 32
+ENTRY(memcpy)
+
+100: /* %o0=dst, %o1=src, %o2=len */
+ mov %o0, %g5
+ cmp %o2, 0
+ be,pn %XCC, out
+218: or %o0, %o1, %o3
+ cmp %o2, 16
+ bleu,a,pn %XCC, small_copy
+ or %o3, %o2, %o3
+
+ cmp %o2, 256
+ blu,pt %XCC, medium_copy
+ andcc %o3, 0x7, %g0
+
+ ba,pt %xcc, enter
+ andcc %o0, 0x3f, %g2
+
+ /* Here len >= 256 and condition codes reflect execution
+ * of "andcc %o0, 0x7, %g2", done by caller.
+ */
+ .align 64
+enter:
+ /* Is 'dst' already aligned on an 64-byte boundary? */
+ be,pt %XCC, 2f
+
+ /* Compute abs((dst & 0x3f) - 0x40) into %g2. This is the number
+ * of bytes to copy to make 'dst' 64-byte aligned. We pre-
+ * subtract this from 'len'.
+ */
+ sub %g2, 0x40, %g2
+ sub %g0, %g2, %g2
+ sub %o2, %g2, %o2
+
+ /* Copy %g2 bytes from src to dst, one byte at a time. */
+1: ldub [%o1 + 0x00], %o3
+ add %o1, 0x1, %o1
+ add %o0, 0x1, %o0
+ subcc %g2, 0x1, %g2
+
+ bg,pt %XCC, 1b
+ stb %o3, [%o0 + -1]
+
+2: VISEntryHalf
+ and %o1, 0x7, %g1
+ ba,pt %xcc, begin
+ alignaddr %o1, %g0, %o1
+
+ .align 64
+begin:
+ prefetch [%o1 + 0x000], #one_read
+ prefetch [%o1 + 0x040], #one_read
+ andn %o2, (0x40 - 1), %o4
+ prefetch [%o1 + 0x080], #one_read
+ prefetch [%o1 + 0x0c0], #one_read
+ ldd [%o1 + 0x000], %f0
+ prefetch [%o1 + 0x100], #one_read
+ ldd [%o1 + 0x008], %f2
+ prefetch [%o1 + 0x140], #one_read
+ ldd [%o1 + 0x010], %f4
+ prefetch [%o1 + 0x180], #one_read
+ faligndata %f0, %f2, %f16
+ ldd [%o1 + 0x018], %f6
+ faligndata %f2, %f4, %f18
+ ldd [%o1 + 0x020], %f8
+ faligndata %f4, %f6, %f20
+ ldd [%o1 + 0x028], %f10
+ faligndata %f6, %f8, %f22
+
+ ldd [%o1 + 0x030], %f12
+ faligndata %f8, %f10, %f24
+ ldd [%o1 + 0x038], %f14
+ faligndata %f10, %f12, %f26
+ ldd [%o1 + 0x040], %f0
+
+ sub %o4, 0x80, %o4
+ add %o1, 0x40, %o1
+ ba,pt %xcc, loop
+ srl %o4, 6, %o3
+
+ .align 64
+loop:
+ ldd [%o1 + 0x008], %f2
+ faligndata %f12, %f14, %f28
+ ldd [%o1 + 0x010], %f4
+ faligndata %f14, %f0, %f30
+ stda %f16, [%o0] ASI_BLK_P
+ ldd [%o1 + 0x018], %f6
+ faligndata %f0, %f2, %f16
+
+ ldd [%o1 + 0x020], %f8
+ faligndata %f2, %f4, %f18
+ ldd [%o1 + 0x028], %f10
+ faligndata %f4, %f6, %f20
+ ldd [%o1 + 0x030], %f12
+ faligndata %f6, %f8, %f22
+ ldd [%o1 + 0x038], %f14
+ faligndata %f8, %f10, %f24
+
+ ldd [%o1 + 0x040], %f0
+ prefetch [%o1 + 0x180], #one_read
+ faligndata %f10, %f12, %f26
+ subcc %o3, 0x01, %o3
+ add %o1, 0x40, %o1
+ bg,pt %XCC, loop
+ add %o0, 0x40, %o0
+
+ /* Finally we copy the last full 64-byte block. */
+loopfini:
+ ldd [%o1 + 0x008], %f2
+ faligndata %f12, %f14, %f28
+ ldd [%o1 + 0x010], %f4
+ faligndata %f14, %f0, %f30
+ stda %f16, [%o0] ASI_BLK_P
+ ldd [%o1 + 0x018], %f6
+ faligndata %f0, %f2, %f16
+ ldd [%o1 + 0x020], %f8
+ faligndata %f2, %f4, %f18
+ ldd [%o1 + 0x028], %f10
+ faligndata %f4, %f6, %f20
+ ldd [%o1 + 0x030], %f12
+ faligndata %f6, %f8, %f22
+ ldd [%o1 + 0x038], %f14
+ faligndata %f8, %f10, %f24
+ cmp %g1, 0
+ be,pt %XCC, 1f
+ add %o0, 0x40, %o0
+ ldd [%o1 + 0x040], %f0
+1: faligndata %f10, %f12, %f26
+ faligndata %f12, %f14, %f28
+ faligndata %f14, %f0, %f30
+ stda %f16, [%o0] ASI_BLK_P
+ add %o0, 0x40, %o0
+ add %o1, 0x40, %o1
+ membar #Sync
+
+ /* Now we copy the (len modulo 64) bytes at the end.
+ * Note how we borrow the %f0 loaded above.
+ *
+ * Also notice how this code is careful not to perform a
+ * load past the end of the src buffer.
+ */
+loopend:
+ and %o2, 0x3f, %o2
+ andcc %o2, 0x38, %g2
+ be,pn %XCC, endcruft
+ subcc %g2, 0x8, %g2
+ be,pn %XCC, endcruft
+ cmp %g1, 0
+
+ be,a,pt %XCC, 1f
+ ldd [%o1 + 0x00], %f0
+
+1: ldd [%o1 + 0x08], %f2
+ add %o1, 0x8, %o1
+ sub %o2, 0x8, %o2
+ subcc %g2, 0x8, %g2
+ faligndata %f0, %f2, %f8
+ std %f8, [%o0 + 0x00]
+ be,pn %XCC, endcruft
+ add %o0, 0x8, %o0
+ ldd [%o1 + 0x08], %f0
+ add %o1, 0x8, %o1
+ sub %o2, 0x8, %o2
+ subcc %g2, 0x8, %g2
+ faligndata %f2, %f0, %f8
+ std %f8, [%o0 + 0x00]
+ bne,pn %XCC, 1b
+ add %o0, 0x8, %o0
+
+ /* If anything is left, we copy it one byte at a time.
+ * Note that %g1 is (src & 0x3) saved above before the
+ * alignaddr was performed.
+ */
+endcruft:
+ cmp %o2, 0
+ add %o1, %g1, %o1
+ VISExitHalf
+ be,pn %XCC, out
+ sub %o0, %o1, %o3
+
+ andcc %g1, 0x7, %g0
+ bne,pn %icc, small_copy_unaligned
+ andcc %o2, 0x8, %g0
+ be,pt %icc, 1f
+ nop
+ ldx [%o1], %o5
+ stx %o5, [%o1 + %o3]
+ add %o1, 0x8, %o1
+
+1: andcc %o2, 0x4, %g0
+ be,pt %icc, 1f
+ nop
+ lduw [%o1], %o5
+ stw %o5, [%o1 + %o3]
+ add %o1, 0x4, %o1
+
+1: andcc %o2, 0x2, %g0
+ be,pt %icc, 1f
+ nop
+ lduh [%o1], %o5
+ sth %o5, [%o1 + %o3]
+ add %o1, 0x2, %o1
+
+1: andcc %o2, 0x1, %g0
+ be,pt %icc, out
+ nop
+ ldub [%o1], %o5
+ ba,pt %xcc, out
+ stb %o5, [%o1 + %o3]
+
+medium_copy: /* 16 < len <= 64 */
+ bne,pn %XCC, small_copy_unaligned
+ sub %o0, %o1, %o3
+
+medium_copy_aligned:
+ andn %o2, 0x7, %o4
+ and %o2, 0x7, %o2
+1: subcc %o4, 0x8, %o4
+ ldx [%o1], %o5
+ stx %o5, [%o1 + %o3]
+ bgu,pt %XCC, 1b
+ add %o1, 0x8, %o1
+ andcc %o2, 0x4, %g0
+ be,pt %XCC, 1f
+ nop
+ sub %o2, 0x4, %o2
+ lduw [%o1], %o5
+ stw %o5, [%o1 + %o3]
+ add %o1, 0x4, %o1
+1: cmp %o2, 0
+ be,pt %XCC, out
+ nop
+ ba,pt %xcc, small_copy_unaligned
+ nop
+
+small_copy: /* 0 < len <= 16 */
+ andcc %o3, 0x3, %g0
+ bne,pn %XCC, small_copy_unaligned
+ sub %o0, %o1, %o3
+
+small_copy_aligned:
+ subcc %o2, 4, %o2
+ lduw [%o1], %g1
+ stw %g1, [%o1 + %o3]
+ bgu,pt %XCC, small_copy_aligned
+ add %o1, 4, %o1
+
+out: retl
+ mov %g5, %o0
+
+ .align 32
+small_copy_unaligned:
+ subcc %o2, 1, %o2
+ ldub [%o1], %g1
+ stb %g1, [%o1 + %o3]
+ bgu,pt %XCC, small_copy_unaligned
+ add %o1, 1, %o1
+ retl
+ mov %g5, %o0
+
+END(memcpy)
+
+#define RMOVE_BIGCHUNK(src, dst, offset, t0, t1, t2, t3) \
+ ldx [%src - offset - 0x20], %t0; \
+ ldx [%src - offset - 0x18], %t1; \
+ ldx [%src - offset - 0x10], %t2; \
+ ldx [%src - offset - 0x08], %t3; \
+ stw %t0, [%dst - offset - 0x1c]; \
+ srlx %t0, 32, %t0; \
+ stw %t0, [%dst - offset - 0x20]; \
+ stw %t1, [%dst - offset - 0x14]; \
+ srlx %t1, 32, %t1; \
+ stw %t1, [%dst - offset - 0x18]; \
+ stw %t2, [%dst - offset - 0x0c]; \
+ srlx %t2, 32, %t2; \
+ stw %t2, [%dst - offset - 0x10]; \
+ stw %t3, [%dst - offset - 0x04]; \
+ srlx %t3, 32, %t3; \
+ stw %t3, [%dst - offset - 0x08];
+
+#define RMOVE_BIGALIGNCHUNK(src, dst, offset, t0, t1, t2, t3) \
+ ldx [%src - offset - 0x20], %t0; \
+ ldx [%src - offset - 0x18], %t1; \
+ ldx [%src - offset - 0x10], %t2; \
+ ldx [%src - offset - 0x08], %t3; \
+ stx %t0, [%dst - offset - 0x20]; \
+ stx %t1, [%dst - offset - 0x18]; \
+ stx %t2, [%dst - offset - 0x10]; \
+ stx %t3, [%dst - offset - 0x08]; \
+ ldx [%src - offset - 0x40], %t0; \
+ ldx [%src - offset - 0x38], %t1; \
+ ldx [%src - offset - 0x30], %t2; \
+ ldx [%src - offset - 0x28], %t3; \
+ stx %t0, [%dst - offset - 0x40]; \
+ stx %t1, [%dst - offset - 0x38]; \
+ stx %t2, [%dst - offset - 0x30]; \
+ stx %t3, [%dst - offset - 0x28];
+
+#define RMOVE_LASTCHUNK(src, dst, offset, t0, t1, t2, t3) \
+ ldx [%src + offset + 0x00], %t0; \
+ ldx [%src + offset + 0x08], %t1; \
+ stw %t0, [%dst + offset + 0x04]; \
+ srlx %t0, 32, %t2; \
+ stw %t2, [%dst + offset + 0x00]; \
+ stw %t1, [%dst + offset + 0x0c]; \
+ srlx %t1, 32, %t3; \
+ stw %t3, [%dst + offset + 0x08];
+
+#define RMOVE_LASTALIGNCHUNK(src, dst, offset, t0, t1) \
+ ldx [%src + offset + 0x00], %t0; \
+ ldx [%src + offset + 0x08], %t1; \
+ stx %t0, [%dst + offset + 0x00]; \
+ stx %t1, [%dst + offset + 0x08];
+
+ .align 32
+228: andcc %o2, 1, %g0 /* IEU1 Group */
+ be,pt %icc, 2f+4 /* CTI */
+1: ldub [%o1 - 1], %o5 /* LOAD Group */
+ sub %o1, 1, %o1 /* IEU0 */
+ sub %o0, 1, %o0 /* IEU1 */
+ subcc %o2, 1, %o2 /* IEU1 Group */
+ be,pn %xcc, 229f /* CTI */
+ stb %o5, [%o0] /* Store */
+2: ldub [%o1 - 1], %o5 /* LOAD Group */
+ sub %o0, 2, %o0 /* IEU0 */
+ ldub [%o1 - 2], %g5 /* LOAD Group */
+ sub %o1, 2, %o1 /* IEU0 */
+ subcc %o2, 2, %o2 /* IEU1 Group */
+ stb %o5, [%o0 + 1] /* Store */
+ bne,pt %xcc, 2b /* CTI */
+ stb %g5, [%o0] /* Store */
+229: retl
+ mov %g4, %o0
+
+ .align 32
+ENTRY(memmove)
+ mov %o0, %g5
+#ifndef USE_BPR
+ srl %o2, 0, %o2 /* IEU1 Group */
+#endif
+ brz,pn %o2, out /* CTI Group */
+ sub %o0, %o1, %o4 /* IEU0 */
+ cmp %o4, %o2 /* IEU1 Group */
+ bgeu,pt %XCC, 218b /* CTI */
+ mov %o0, %g4 /* IEU0 */
+ add %o0, %o2, %o0 /* IEU0 Group */
+220: add %o1, %o2, %o1 /* IEU1 */
+ cmp %o2, 15 /* IEU1 Group */
+ bleu,pn %xcc, 228b /* CTI */
+ andcc %o0, 7, %g2 /* IEU1 Group */
+ sub %o0, %o1, %g5 /* IEU0 */
+ andcc %g5, 3, %o5 /* IEU1 Group */
+ bne,pn %xcc, 232f /* CTI */
+ andcc %o1, 3, %g0 /* IEU1 Group */
+ be,a,pt %xcc, 236f /* CTI */
+ andcc %o1, 4, %g0 /* IEU1 Group */
+ andcc %o1, 1, %g0 /* IEU1 Group */
+ be,pn %xcc, 4f /* CTI */
+ andcc %o1, 2, %g0 /* IEU1 Group */
+ ldub [%o1 - 1], %g2 /* Load Group */
+ sub %o1, 1, %o1 /* IEU0 */
+ sub %o0, 1, %o0 /* IEU1 */
+ 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
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-02 17:40:45 +0000