arch/sparc/lib/U1memcpy.S

   1 /* U1memcpy.S: UltraSPARC-I/II/IIi/IIe optimized memcpy.
   2  *
   3  * Copyright (C) 1997, 2004 David S. Miller (davem@redhat.com)
   4  * Copyright (C) 1996, 1997, 1998, 1999 Jakub Jelinek (jj@ultra.linux.cz)
   5  */
   6
   7 #ifdef __KERNEL__
   8 #include <asm/visasm.h>
   9 #include <asm/asi.h>
  10 #define GLOBAL_SPARE    g7
  11 #else
  12 #define GLOBAL_SPARE    g5
  13 #define ASI_BLK_P 0xf0
  14 #define FPRS_FEF  0x04
  15 #ifdef MEMCPY_DEBUG
  16 #define VISEntry rd %fprs, %o5; wr %g0, FPRS_FEF, %fprs; \
  17                  clr %g1; clr %g2; clr %g3; subcc %g0, %g0, %g0;
  18 #define VISExit and %o5, FPRS_FEF, %o5; wr %o5, 0x0, %fprs
  19 #else
  20 #define VISEntry rd %fprs, %o5; wr %g0, FPRS_FEF, %fprs
  21 #define VISExit and %o5, FPRS_FEF, %o5; wr %o5, 0x0, %fprs
  22 #endif
  23 #endif
  24
  25 #ifndef EX_LD
  26 #define EX_LD(x)        x
  27 #endif
  28
  29 #ifndef EX_ST
  30 #define EX_ST(x)        x
  31 #endif
  32
  33 #ifndef EX_RETVAL
  34 #define EX_RETVAL(x)    x
  35 #endif
  36
  37 #ifndef LOAD
  38 #define LOAD(type,addr,dest)    type [addr], dest
  39 #endif
  40
  41 #ifndef LOAD_BLK
  42 #define LOAD_BLK(addr,dest)     ldda [addr] ASI_BLK_P, dest
  43 #endif
  44
  45 #ifndef STORE
  46 #define STORE(type,src,addr)    type src, [addr]
  47 #endif
  48
  49 #ifndef STORE_BLK
  50 #define STORE_BLK(src,addr)     stda src, [addr] ASI_BLK_P
  51 #endif
  52
  53 #ifndef FUNC_NAME
  54 #define FUNC_NAME       memcpy
  55 #endif
  56
  57 #ifndef PREAMBLE
  58 #define PREAMBLE
  59 #endif
  60
  61 #ifndef XCC
  62 #define XCC xcc
  63 #endif
  64
  65 #define FREG_FROB(f1, f2, f3, f4, f5, f6, f7, f8, f9)           \
  66         faligndata              %f1, %f2, %f48;                 \
  67         faligndata              %f2, %f3, %f50;                 \
  68         faligndata              %f3, %f4, %f52;                 \
  69         faligndata              %f4, %f5, %f54;                 \
  70         faligndata              %f5, %f6, %f56;                 \
  71         faligndata              %f6, %f7, %f58;                 \
  72         faligndata              %f7, %f8, %f60;                 \
  73         faligndata              %f8, %f9, %f62;
  74
  75 #define MAIN_LOOP_CHUNK(src, dest, fdest, fsrc, len, jmptgt)    \
  76         EX_LD(LOAD_BLK(%src, %fdest));                          \
  77         EX_ST(STORE_BLK(%fsrc, %dest));                         \
  78         add                     %src, 0x40, %src;               \
  79         subcc                   %len, 0x40, %len;               \
  80         be,pn                   %xcc, jmptgt;                   \
  81          add                    %dest, 0x40, %dest;             \
  82
  83 #define LOOP_CHUNK1(src, dest, len, branch_dest)                \
  84         MAIN_LOOP_CHUNK(src, dest, f0,  f48, len, branch_dest)
  85 #define LOOP_CHUNK2(src, dest, len, branch_dest)                \
  86         MAIN_LOOP_CHUNK(src, dest, f16, f48, len, branch_dest)
  87 #define LOOP_CHUNK3(src, dest, len, branch_dest)                \
  88         MAIN_LOOP_CHUNK(src, dest, f32, f48, len, branch_dest)
  89
  90 #define DO_SYNC                 membar  #Sync;
  91 #define STORE_SYNC(dest, fsrc)                          \
  92         EX_ST(STORE_BLK(%fsrc, %dest));                 \
  93         add                     %dest, 0x40, %dest;     \
  94         DO_SYNC
  95
  96 #define STORE_JUMP(dest, fsrc, target)                  \
  97         EX_ST(STORE_BLK(%fsrc, %dest));                 \
  98         add                     %dest, 0x40, %dest;     \
  99         ba,pt                   %xcc, target;           \
 100          nop;
 101
 102 #define FINISH_VISCHUNK(dest, f0, f1, left)     \
 103         subcc                   %left, 8, %left;\
 104         bl,pn                   %xcc, 95f;      \
 105          faligndata             %f0, %f1, %f48; \
 106         EX_ST(STORE(std, %f48, %dest));         \
 107         add                     %dest, 8, %dest;
 108
 109 #define UNEVEN_VISCHUNK_LAST(dest, f0, f1, left)        \
 110         subcc                   %left, 8, %left;        \
 111         bl,pn                   %xcc, 95f;              \
 112          fsrc2                  %f0, %f1;
 113
 114 #define UNEVEN_VISCHUNK(dest, f0, f1, left)             \
 115         UNEVEN_VISCHUNK_LAST(dest, f0, f1, left)        \
 116         ba,a,pt                 %xcc, 93f;
 117
 118         .register       %g2,#scratch
 119         .register       %g3,#scratch
 120
 121         .text
 122         .align          64
 123
 124         .globl          FUNC_NAME
 125         .type           FUNC_NAME,#function
 126 FUNC_NAME:              /* %o0=dst, %o1=src, %o2=len */
 127         srlx            %o2, 31, %g2
 128         cmp             %g2, 0
 129         tne             %xcc, 5
 130         PREAMBLE
 131         mov             %o0, %o4
 132         cmp             %o2, 0
 133         be,pn           %XCC, 85f
 134          or             %o0, %o1, %o3
 135         cmp             %o2, 16
 136         blu,a,pn        %XCC, 80f
 137          or             %o3, %o2, %o3
 138
 139         cmp             %o2, (5 * 64)
 140         blu,pt          %XCC, 70f
 141          andcc          %o3, 0x7, %g0
 142
 143         /* Clobbers o5/g1/g2/g3/g7/icc/xcc.  */
 144         VISEntry
 145
 146         /* Is 'dst' already aligned on an 64-byte boundary? */
 147         andcc           %o0, 0x3f, %g2
 148         be,pt           %XCC, 2f
 149
 150         /* Compute abs((dst & 0x3f) - 0x40) into %g2.  This is the number
 151          * of bytes to copy to make 'dst' 64-byte aligned.  We pre-
 152          * subtract this from 'len'.
 153          */
 154          sub            %o0, %o1, %GLOBAL_SPARE
 155         sub             %g2, 0x40, %g2
 156         sub             %g0, %g2, %g2
 157         sub             %o2, %g2, %o2
 158         andcc           %g2, 0x7, %g1
 159         be,pt           %icc, 2f
 160          and            %g2, 0x38, %g2
 161
 162 1:      subcc           %g1, 0x1, %g1
 163         EX_LD(LOAD(ldub, %o1 + 0x00, %o3))
 164         EX_ST(STORE(stb, %o3, %o1 + %GLOBAL_SPARE))
 165         bgu,pt          %XCC, 1b
 166          add            %o1, 0x1, %o1
 167
 168         add             %o1, %GLOBAL_SPARE, %o0
 169
 170 2:      cmp             %g2, 0x0
 171         and             %o1, 0x7, %g1
 172         be,pt           %icc, 3f
 173          alignaddr      %o1, %g0, %o1
 174
 175         EX_LD(LOAD(ldd, %o1, %f4))
 176 1:      EX_LD(LOAD(ldd, %o1 + 0x8, %f6))
 177         add             %o1, 0x8, %o1
 178         subcc           %g2, 0x8, %g2
 179         faligndata      %f4, %f6, %f0
 180         EX_ST(STORE(std, %f0, %o0))
 181         be,pn           %icc, 3f
 182          add            %o0, 0x8, %o0
 183
 184         EX_LD(LOAD(ldd, %o1 + 0x8, %f4))
 185         add             %o1, 0x8, %o1
 186         subcc           %g2, 0x8, %g2
 187         faligndata      %f6, %f4, %f0
 188         EX_ST(STORE(std, %f0, %o0))
 189         bne,pt          %icc, 1b
 190          add            %o0, 0x8, %o0
 191
 192         /* Destination is 64-byte aligned.  */
 193 3:
 194         membar            #LoadStore | #StoreStore | #StoreLoad
 195
 196         subcc           %o2, 0x40, %GLOBAL_SPARE
 197         add             %o1, %g1, %g1
 198         andncc          %GLOBAL_SPARE, (0x40 - 1), %GLOBAL_SPARE
 199         srl             %g1, 3, %g2
 200         sub             %o2, %GLOBAL_SPARE, %g3
 201         andn            %o1, (0x40 - 1), %o1
 202         and             %g2, 7, %g2
 203         andncc          %g3, 0x7, %g3
 204         fsrc2           %f0, %f2
 205         sub             %g3, 0x8, %g3
 206         sub             %o2, %GLOBAL_SPARE, %o2
 207
 208         add             %g1, %GLOBAL_SPARE, %g1
 209         subcc           %o2, %g3, %o2
 210
 211         EX_LD(LOAD_BLK(%o1, %f0))
 212         add             %o1, 0x40, %o1
 213         add             %g1, %g3, %g1
 214         EX_LD(LOAD_BLK(%o1, %f16))
 215         add             %o1, 0x40, %o1
 216         sub             %GLOBAL_SPARE, 0x80, %GLOBAL_SPARE
 217         EX_LD(LOAD_BLK(%o1, %f32))
 218         add             %o1, 0x40, %o1
 219
 220         /* There are 8 instances of the unrolled loop,
 221          * one for each possible alignment of the
 222          * source buffer.  Each loop instance is 452
 223          * bytes.
 224          */
 225         sll             %g2, 3, %o3
 226         sub             %o3, %g2, %o3
 227         sllx            %o3, 4, %o3
 228         add             %o3, %g2, %o3
 229         sllx            %o3, 2, %g2
 230 1:      rd              %pc, %o3
 231         add             %o3, %lo(1f - 1b), %o3
 232         jmpl            %o3 + %g2, %g0
 233          nop
 234
 235         .align          64
 236 1:      FREG_FROB(f0, f2, f4, f6, f8, f10,f12,f14,f16)
 237         LOOP_CHUNK1(o1, o0, GLOBAL_SPARE, 1f)
 238         FREG_FROB(f16,f18,f20,f22,f24,f26,f28,f30,f32)
 239         LOOP_CHUNK2(o1, o0, GLOBAL_SPARE, 2f)
 240         FREG_FROB(f32,f34,f36,f38,f40,f42,f44,f46,f0)
 241         LOOP_CHUNK3(o1, o0, GLOBAL_SPARE, 3f)
 242         ba,pt           %xcc, 1b+4
 243          faligndata     %f0, %f2, %f48
 244 1:      FREG_FROB(f16,f18,f20,f22,f24,f26,f28,f30,f32)
 245         STORE_SYNC(o0, f48)
 246         FREG_FROB(f32,f34,f36,f38,f40,f42,f44,f46,f0)
 247         STORE_JUMP(o0, f48, 40f)
 248 2:      FREG_FROB(f32,f34,f36,f38,f40,f42,f44,f46,f0)
 249         STORE_SYNC(o0, f48)
 250         FREG_FROB(f0, f2, f4, f6, f8, f10,f12,f14,f16)
 251         STORE_JUMP(o0, f48, 48f)
 252 3:      FREG_FROB(f0, f2, f4, f6, f8, f10,f12,f14,f16)
 253         STORE_SYNC(o0, f48)
 254         FREG_FROB(f16,f18,f20,f22,f24,f26,f28,f30,f32)
 255         STORE_JUMP(o0, f48, 56f)
 256
 257 1:      FREG_FROB(f2, f4, f6, f8, f10,f12,f14,f16,f18)
 258         LOOP_CHUNK1(o1, o0, GLOBAL_SPARE, 1f)
 259         FREG_FROB(f18,f20,f22,f24,f26,f28,f30,f32,f34)
 260         LOOP_CHUNK2(o1, o0, GLOBAL_SPARE, 2f)
 261         FREG_FROB(f34,f36,f38,f40,f42,f44,f46,f0, f2)
 262         LOOP_CHUNK3(o1, o0, GLOBAL_SPARE, 3f)
 263         ba,pt           %xcc, 1b+4
 264          faligndata     %f2, %f4, %f48
 265 1:      FREG_FROB(f18,f20,f22,f24,f26,f28,f30,f32,f34)
 266         STORE_SYNC(o0, f48)
 267         FREG_FROB(f34,f36,f38,f40,f42,f44,f46,f0, f2)
 268         STORE_JUMP(o0, f48, 41f)
 269 2:      FREG_FROB(f34,f36,f38,f40,f42,f44,f46,f0, f2)
 270         STORE_SYNC(o0, f48)
 271         FREG_FROB(f2, f4, f6, f8, f10,f12,f14,f16,f18)
 272         STORE_JUMP(o0, f48, 49f)
 273 3:      FREG_FROB(f2, f4, f6, f8, f10,f12,f14,f16,f18)
 274         STORE_SYNC(o0, f48)
 275         FREG_FROB(f18,f20,f22,f24,f26,f28,f30,f32,f34)
 276         STORE_JUMP(o0, f48, 57f)
 277
 278 1:      FREG_FROB(f4, f6, f8, f10,f12,f14,f16,f18,f20)
 279         LOOP_CHUNK1(o1, o0, GLOBAL_SPARE, 1f)
 280         FREG_FROB(f20,f22,f24,f26,f28,f30,f32,f34,f36)
 281         LOOP_CHUNK2(o1, o0, GLOBAL_SPARE, 2f)
 282         FREG_FROB(f36,f38,f40,f42,f44,f46,f0, f2, f4)
 283         LOOP_CHUNK3(o1, o0, GLOBAL_SPARE, 3f)
 284         ba,pt           %xcc, 1b+4
 285          faligndata     %f4, %f6, %f48
 286 1:      FREG_FROB(f20,f22,f24,f26,f28,f30,f32,f34,f36)
 287         STORE_SYNC(o0, f48)
 288         FREG_FROB(f36,f38,f40,f42,f44,f46,f0, f2, f4)
 289         STORE_JUMP(o0, f48, 42f)
 290 2:      FREG_FROB(f36,f38,f40,f42,f44,f46,f0, f2, f4)
 291         STORE_SYNC(o0, f48)
 292         FREG_FROB(f4, f6, f8, f10,f12,f14,f16,f18,f20)
 293         STORE_JUMP(o0, f48, 50f)
 294 3:      FREG_FROB(f4, f6, f8, f10,f12,f14,f16,f18,f20)
 295         STORE_SYNC(o0, f48)
 296         FREG_FROB(f20,f22,f24,f26,f28,f30,f32,f34,f36)
 297         STORE_JUMP(o0, f48, 58f)
 298
 299 1:      FREG_FROB(f6, f8, f10,f12,f14,f16,f18,f20,f22)
 300         LOOP_CHUNK1(o1, o0, GLOBAL_SPARE, 1f)
 301         FREG_FROB(f22,f24,f26,f28,f30,f32,f34,f36,f38)
 302         LOOP_CHUNK2(o1, o0, GLOBAL_SPARE, 2f)
 303         FREG_FROB(f38,f40,f42,f44,f46,f0, f2, f4, f6)
 304         LOOP_CHUNK3(o1, o0, GLOBAL_SPARE, 3f)
 305         ba,pt           %xcc, 1b+4
 306          faligndata     %f6, %f8, %f48
 307 1:      FREG_FROB(f22,f24,f26,f28,f30,f32,f34,f36,f38)
 308         STORE_SYNC(o0, f48)
 309         FREG_FROB(f38,f40,f42,f44,f46,f0, f2, f4, f6)
 310         STORE_JUMP(o0, f48, 43f)
 311 2:      FREG_FROB(f38,f40,f42,f44,f46,f0, f2, f4, f6)
 312         STORE_SYNC(o0, f48)
 313         FREG_FROB(f6, f8, f10,f12,f14,f16,f18,f20,f22)
 314         STORE_JUMP(o0, f48, 51f)
 315 3:      FREG_FROB(f6, f8, f10,f12,f14,f16,f18,f20,f22)
 316         STORE_SYNC(o0, f48)
 317         FREG_FROB(f22,f24,f26,f28,f30,f32,f34,f36,f38)
 318         STORE_JUMP(o0, f48, 59f)
 319
 320 1:      FREG_FROB(f8, f10,f12,f14,f16,f18,f20,f22,f24)
 321         LOOP_CHUNK1(o1, o0, GLOBAL_SPARE, 1f)
 322         FREG_FROB(f24,f26,f28,f30,f32,f34,f36,f38,f40)
 323         LOOP_CHUNK2(o1, o0, GLOBAL_SPARE, 2f)
 324         FREG_FROB(f40,f42,f44,f46,f0, f2, f4, f6, f8)
 325         LOOP_CHUNK3(o1, o0, GLOBAL_SPARE, 3f)
 326         ba,pt           %xcc, 1b+4
 327          faligndata     %f8, %f10, %f48
 328 1:      FREG_FROB(f24,f26,f28,f30,f32,f34,f36,f38,f40)
 329         STORE_SYNC(o0, f48)
 330         FREG_FROB(f40,f42,f44,f46,f0, f2, f4, f6, f8)
 331         STORE_JUMP(o0, f48, 44f)
 332 2:      FREG_FROB(f40,f42,f44,f46,f0, f2, f4, f6, f8)
 333         STORE_SYNC(o0, f48)
 334         FREG_FROB(f8, f10,f12,f14,f16,f18,f20,f22,f24)
 335         STORE_JUMP(o0, f48, 52f)
 336 3:      FREG_FROB(f8, f10,f12,f14,f16,f18,f20,f22,f24)
 337         STORE_SYNC(o0, f48)
 338         FREG_FROB(f24,f26,f28,f30,f32,f34,f36,f38,f40)
 339         STORE_JUMP(o0, f48, 60f)
 340
 341 1:      FREG_FROB(f10,f12,f14,f16,f18,f20,f22,f24,f26)
 342         LOOP_CHUNK1(o1, o0, GLOBAL_SPARE, 1f)
 343         FREG_FROB(f26,f28,f30,f32,f34,f36,f38,f40,f42)
 344         LOOP_CHUNK2(o1, o0, GLOBAL_SPARE, 2f)
 345         FREG_FROB(f42,f44,f46,f0, f2, f4, f6, f8, f10)
 346         LOOP_CHUNK3(o1, o0, GLOBAL_SPARE, 3f)
 347         ba,pt           %xcc, 1b+4
 348          faligndata     %f10, %f12, %f48
 349 1:      FREG_FROB(f26,f28,f30,f32,f34,f36,f38,f40,f42)
 350         STORE_SYNC(o0, f48)
 351         FREG_FROB(f42,f44,f46,f0, f2, f4, f6, f8, f10)
 352         STORE_JUMP(o0, f48, 45f)
 353 2:      FREG_FROB(f42,f44,f46,f0, f2, f4, f6, f8, f10)
 354         STORE_SYNC(o0, f48)
 355         FREG_FROB(f10,f12,f14,f16,f18,f20,f22,f24,f26)
 356         STORE_JUMP(o0, f48, 53f)
 357 3:      FREG_FROB(f10,f12,f14,f16,f18,f20,f22,f24,f26)
 358         STORE_SYNC(o0, f48)
 359         FREG_FROB(f26,f28,f30,f32,f34,f36,f38,f40,f42)
 360         STORE_JUMP(o0, f48, 61f)
 361
 362 1:      FREG_FROB(f12,f14,f16,f18,f20,f22,f24,f26,f28)
 363         LOOP_CHUNK1(o1, o0, GLOBAL_SPARE, 1f)
 364         FREG_FROB(f28,f30,f32,f34,f36,f38,f40,f42,f44)
 365         LOOP_CHUNK2(o1, o0, GLOBAL_SPARE, 2f)
 366         FREG_FROB(f44,f46,f0, f2, f4, f6, f8, f10,f12)
 367         LOOP_CHUNK3(o1, o0, GLOBAL_SPARE, 3f)
 368         ba,pt           %xcc, 1b+4
 369          faligndata     %f12, %f14, %f48
 370 1:      FREG_FROB(f28,f30,f32,f34,f36,f38,f40,f42,f44)
 371         STORE_SYNC(o0, f48)
 372         FREG_FROB(f44,f46,f0, f2, f4, f6, f8, f10,f12)
 373         STORE_JUMP(o0, f48, 46f)
 374 2:      FREG_FROB(f44,f46,f0, f2, f4, f6, f8, f10,f12)
 375         STORE_SYNC(o0, f48)
 376         FREG_FROB(f12,f14,f16,f18,f20,f22,f24,f26,f28)
 377         STORE_JUMP(o0, f48, 54f)
 378 3:      FREG_FROB(f12,f14,f16,f18,f20,f22,f24,f26,f28)
 379         STORE_SYNC(o0, f48)
 380         FREG_FROB(f28,f30,f32,f34,f36,f38,f40,f42,f44)
 381         STORE_JUMP(o0, f48, 62f)
 382
 383 1:      FREG_FROB(f14,f16,f18,f20,f22,f24,f26,f28,f30)
 384         LOOP_CHUNK1(o1, o0, GLOBAL_SPARE, 1f)
 385         FREG_FROB(f30,f32,f34,f36,f38,f40,f42,f44,f46)
 386         LOOP_CHUNK2(o1, o0, GLOBAL_SPARE, 2f)
 387         FREG_FROB(f46,f0, f2, f4, f6, f8, f10,f12,f14)
 388         LOOP_CHUNK3(o1, o0, GLOBAL_SPARE, 3f)
 389         ba,pt           %xcc, 1b+4
 390          faligndata     %f14, %f16, %f48
 391 1:      FREG_FROB(f30,f32,f34,f36,f38,f40,f42,f44,f46)
 392         STORE_SYNC(o0, f48)
 393         FREG_FROB(f46,f0, f2, f4, f6, f8, f10,f12,f14)
 394         STORE_JUMP(o0, f48, 47f)
 395 2:      FREG_FROB(f46,f0, f2, f4, f6, f8, f10,f12,f14)
 396         STORE_SYNC(o0, f48)
 397         FREG_FROB(f14,f16,f18,f20,f22,f24,f26,f28,f30)
 398         STORE_JUMP(o0, f48, 55f)
 399 3:      FREG_FROB(f14,f16,f18,f20,f22,f24,f26,f28,f30)
 400         STORE_SYNC(o0, f48)
 401         FREG_FROB(f30,f32,f34,f36,f38,f40,f42,f44,f46)
 402         STORE_JUMP(o0, f48, 63f)
 403
 404 40:     FINISH_VISCHUNK(o0, f0,  f2,  g3)
 405 41:     FINISH_VISCHUNK(o0, f2,  f4,  g3)
 406 42:     FINISH_VISCHUNK(o0, f4,  f6,  g3)
 407 43:     FINISH_VISCHUNK(o0, f6,  f8,  g3)
 408 44:     FINISH_VISCHUNK(o0, f8,  f10, g3)
 409 45:     FINISH_VISCHUNK(o0, f10, f12, g3)
 410 46:     FINISH_VISCHUNK(o0, f12, f14, g3)
 411 47:     UNEVEN_VISCHUNK(o0, f14, f0,  g3)
 412 48:     FINISH_VISCHUNK(o0, f16, f18, g3)
 413 49:     FINISH_VISCHUNK(o0, f18, f20, g3)
 414 50:     FINISH_VISCHUNK(o0, f20, f22, g3)
 415 51:     FINISH_VISCHUNK(o0, f22, f24, g3)
 416 52:     FINISH_VISCHUNK(o0, f24, f26, g3)
 417 53:     FINISH_VISCHUNK(o0, f26, f28, g3)
 418 54:     FINISH_VISCHUNK(o0, f28, f30, g3)
 419 55:     UNEVEN_VISCHUNK(o0, f30, f0,  g3)
 420 56:     FINISH_VISCHUNK(o0, f32, f34, g3)
 421 57:     FINISH_VISCHUNK(o0, f34, f36, g3)
 422 58:     FINISH_VISCHUNK(o0, f36, f38, g3)
 423 59:     FINISH_VISCHUNK(o0, f38, f40, g3)
 424 60:     FINISH_VISCHUNK(o0, f40, f42, g3)
 425 61:     FINISH_VISCHUNK(o0, f42, f44, g3)
 426 62:     FINISH_VISCHUNK(o0, f44, f46, g3)
 427 63:     UNEVEN_VISCHUNK_LAST(o0, f46, f0,  g3)
 428
 429 93:     EX_LD(LOAD(ldd, %o1, %f2))
 430         add             %o1, 8, %o1
 431         subcc           %g3, 8, %g3
 432         faligndata      %f0, %f2, %f8
 433         EX_ST(STORE(std, %f8, %o0))
 434         bl,pn           %xcc, 95f
 435          add            %o0, 8, %o0
 436         EX_LD(LOAD(ldd, %o1, %f0))
 437         add             %o1, 8, %o1
 438         subcc           %g3, 8, %g3
 439         faligndata      %f2, %f0, %f8
 440         EX_ST(STORE(std, %f8, %o0))
 441         bge,pt          %xcc, 93b
 442          add            %o0, 8, %o0
 443
 444 95:     brz,pt          %o2, 2f
 445          mov            %g1, %o1
 446
 447 1:      EX_LD(LOAD(ldub, %o1, %o3))
 448         add             %o1, 1, %o1
 449         subcc           %o2, 1, %o2
 450         EX_ST(STORE(stb, %o3, %o0))
 451         bne,pt          %xcc, 1b
 452          add            %o0, 1, %o0
 453
 454 2:      membar          #StoreLoad | #StoreStore
 455         VISExit
 456         retl
 457          mov            EX_RETVAL(%o4), %o0
 458
 459         .align          64
 460 70:     /* 16 < len <= (5 * 64) */
 461         bne,pn          %XCC, 75f
 462          sub            %o0, %o1, %o3
 463
 464 72:     andn            %o2, 0xf, %GLOBAL_SPARE
 465         and             %o2, 0xf, %o2
 466 1:      EX_LD(LOAD(ldx, %o1 + 0x00, %o5))
 467         EX_LD(LOAD(ldx, %o1 + 0x08, %g1))
 468         subcc           %GLOBAL_SPARE, 0x10, %GLOBAL_SPARE
 469         EX_ST(STORE(stx, %o5, %o1 + %o3))
 470         add             %o1, 0x8, %o1
 471         EX_ST(STORE(stx, %g1, %o1 + %o3))
 472         bgu,pt          %XCC, 1b
 473          add            %o1, 0x8, %o1
 474 73:     andcc           %o2, 0x8, %g0
 475         be,pt           %XCC, 1f
 476          nop
 477         EX_LD(LOAD(ldx, %o1, %o5))
 478         sub             %o2, 0x8, %o2
 479         EX_ST(STORE(stx, %o5, %o1 + %o3))
 480         add             %o1, 0x8, %o1
 481 1:      andcc           %o2, 0x4, %g0
 482         be,pt           %XCC, 1f
 483          nop
 484         EX_LD(LOAD(lduw, %o1, %o5))
 485         sub             %o2, 0x4, %o2
 486         EX_ST(STORE(stw, %o5, %o1 + %o3))
 487         add             %o1, 0x4, %o1
 488 1:      cmp             %o2, 0
 489         be,pt           %XCC, 85f
 490          nop
 491         ba,pt           %xcc, 90f
 492          nop
 493
 494 75:     andcc           %o0, 0x7, %g1
 495         sub             %g1, 0x8, %g1
 496         be,pn           %icc, 2f
 497          sub            %g0, %g1, %g1
 498         sub             %o2, %g1, %o2
 499
 500 1:      EX_LD(LOAD(ldub, %o1, %o5))
 501         subcc           %g1, 1, %g1
 502         EX_ST(STORE(stb, %o5, %o1 + %o3))
 503         bgu,pt          %icc, 1b
 504          add            %o1, 1, %o1
 505
 506 2:      add             %o1, %o3, %o0
 507         andcc           %o1, 0x7, %g1
 508         bne,pt          %icc, 8f
 509          sll            %g1, 3, %g1
 510
 511         cmp             %o2, 16
 512         bgeu,pt         %icc, 72b
 513          nop
 514         ba,a,pt         %xcc, 73b
 515
 516 8:      mov             64, %o3
 517         andn            %o1, 0x7, %o1
 518         EX_LD(LOAD(ldx, %o1, %g2))
 519         sub             %o3, %g1, %o3
 520         andn            %o2, 0x7, %GLOBAL_SPARE
 521         sllx            %g2, %g1, %g2
 522 1:      EX_LD(LOAD(ldx, %o1 + 0x8, %g3))
 523         subcc           %GLOBAL_SPARE, 0x8, %GLOBAL_SPARE
 524         add             %o1, 0x8, %o1
 525         srlx            %g3, %o3, %o5
 526         or              %o5, %g2, %o5
 527         EX_ST(STORE(stx, %o5, %o0))
 528         add             %o0, 0x8, %o0
 529         bgu,pt          %icc, 1b
 530          sllx           %g3, %g1, %g2
 531
 532         srl             %g1, 3, %g1
 533         andcc           %o2, 0x7, %o2
 534         be,pn           %icc, 85f
 535          add            %o1, %g1, %o1
 536         ba,pt           %xcc, 90f
 537          sub            %o0, %o1, %o3
 538
 539         .align          64
 540 80:     /* 0 < len <= 16 */
 541         andcc           %o3, 0x3, %g0
 542         bne,pn          %XCC, 90f
 543          sub            %o0, %o1, %o3
 544
 545 1:      EX_LD(LOAD(lduw, %o1, %g1))
 546         subcc           %o2, 4, %o2
 547         EX_ST(STORE(stw, %g1, %o1 + %o3))
 548         bgu,pt          %XCC, 1b
 549          add            %o1, 4, %o1
 550
 551 85:     retl
 552          mov            EX_RETVAL(%o4), %o0
 553
 554         .align          32
 555 90:     EX_LD(LOAD(ldub, %o1, %g1))
 556         subcc           %o2, 1, %o2
 557         EX_ST(STORE(stb, %g1, %o1 + %o3))
 558         bgu,pt          %XCC, 90b
 559          add            %o1, 1, %o1
 560         retl
 561          mov            EX_RETVAL(%o4), %o0
 562
 563         .size           FUNC_NAME, .-FUNC_NAME