1 /* SPDX-License-Identifier: GPL-2.0-only */ !! 1 /* memcpy.S: Sparc optimized memcpy and memmove code
2 /* !! 2 * Hand optimized from GNU libc's memcpy and memmove
3 * linux/arch/arm/lib/memcpy.S !! 3 * Copyright (C) 1991,1996 Free Software Foundation
4 * !! 4 * Copyright (C) 1995 Linus Torvalds (Linus.Torvalds@helsinki.fi)
5 * Author: Nicolas Pitre !! 5 * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
6 * Created: Sep 28, 2005 !! 6 * Copyright (C) 1996 Eddie C. Dost (ecd@skynet.be)
7 * Copyright: MontaVista Software, Inc. !! 7 * Copyright (C) 1996 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
8 */ 8 */
9 9
10 #include <linux/linkage.h> !! 10 #define FUNC(x) \
11 #include <asm/assembler.h> !! 11 .globl x; \
12 #include <asm/unwind.h> !! 12 .type x,@function; \
13 !! 13 .align 4; \
14 #define LDR1W_SHIFT 0 !! 14 x:
15 #define STR1W_SHIFT 0 !! 15
16 !! 16 /* Both these macros have to start with exactly the same insn */
17 .macro ldr1w ptr reg abort !! 17 #define MOVE_BIGCHUNK(src, dst, offset, t0, t1, t2, t3, t4, t5, t6, t7) \
18 W(ldr) \reg, [\ptr], #4 !! 18 ldd [%src + (offset) + 0x00], %t0; \
19 .endm !! 19 ldd [%src + (offset) + 0x08], %t2; \
20 !! 20 ldd [%src + (offset) + 0x10], %t4; \
21 .macro ldr4w ptr reg1 reg2 reg3 reg4 a !! 21 ldd [%src + (offset) + 0x18], %t6; \
22 ldmia \ptr!, {\reg1, \reg2, \reg3, \re !! 22 st %t0, [%dst + (offset) + 0x00]; \
23 .endm !! 23 st %t1, [%dst + (offset) + 0x04]; \
24 !! 24 st %t2, [%dst + (offset) + 0x08]; \
25 .macro ldr8w ptr reg1 reg2 reg3 reg4 r !! 25 st %t3, [%dst + (offset) + 0x0c]; \
26 ldmia \ptr!, {\reg1, \reg2, \reg3, \re !! 26 st %t4, [%dst + (offset) + 0x10]; \
27 .endm !! 27 st %t5, [%dst + (offset) + 0x14]; \
28 !! 28 st %t6, [%dst + (offset) + 0x18]; \
29 .macro ldr1b ptr reg cond=al abort !! 29 st %t7, [%dst + (offset) + 0x1c];
30 ldrb\cond \reg, [\ptr], #1 !! 30
31 .endm !! 31 #define MOVE_BIGALIGNCHUNK(src, dst, offset, t0, t1, t2, t3, t4, t5, t6, t7) \
32 !! 32 ldd [%src + (offset) + 0x00], %t0; \
33 .macro str1w ptr reg abort !! 33 ldd [%src + (offset) + 0x08], %t2; \
34 W(str) \reg, [\ptr], #4 !! 34 ldd [%src + (offset) + 0x10], %t4; \
35 .endm !! 35 ldd [%src + (offset) + 0x18], %t6; \
36 !! 36 std %t0, [%dst + (offset) + 0x00]; \
37 .macro str8w ptr reg1 reg2 reg3 reg4 r !! 37 std %t2, [%dst + (offset) + 0x08]; \
38 stmia \ptr!, {\reg1, \reg2, \reg3, \re !! 38 std %t4, [%dst + (offset) + 0x10]; \
39 .endm !! 39 std %t6, [%dst + (offset) + 0x18];
40 !! 40
41 .macro str1b ptr reg cond=al abort !! 41 #define MOVE_LASTCHUNK(src, dst, offset, t0, t1, t2, t3) \
42 strb\cond \reg, [\ptr], #1 !! 42 ldd [%src - (offset) - 0x10], %t0; \
43 .endm !! 43 ldd [%src - (offset) - 0x08], %t2; \
44 !! 44 st %t0, [%dst - (offset) - 0x10]; \
45 .macro enter regs:vararg !! 45 st %t1, [%dst - (offset) - 0x0c]; \
46 UNWIND( .save {r0, \regs} ) !! 46 st %t2, [%dst - (offset) - 0x08]; \
47 stmdb sp!, {r0, \regs} !! 47 st %t3, [%dst - (offset) - 0x04];
48 .endm !! 48
49 !! 49 #define MOVE_LASTALIGNCHUNK(src, dst, offset, t0, t1, t2, t3) \
50 .macro exit regs:vararg !! 50 ldd [%src - (offset) - 0x10], %t0; \
51 ldmfd sp!, {r0, \regs} !! 51 ldd [%src - (offset) - 0x08], %t2; \
52 .endm !! 52 std %t0, [%dst - (offset) - 0x10]; \
>> 53 std %t2, [%dst - (offset) - 0x08];
>> 54
>> 55 #define MOVE_SHORTCHUNK(src, dst, offset, t0, t1) \
>> 56 ldub [%src - (offset) - 0x02], %t0; \
>> 57 ldub [%src - (offset) - 0x01], %t1; \
>> 58 stb %t0, [%dst - (offset) - 0x02]; \
>> 59 stb %t1, [%dst - (offset) - 0x01];
>> 60
>> 61 /* Both these macros have to start with exactly the same insn */
>> 62 #define RMOVE_BIGCHUNK(src, dst, offset, t0, t1, t2, t3, t4, t5, t6, t7) \
>> 63 ldd [%src - (offset) - 0x20], %t0; \
>> 64 ldd [%src - (offset) - 0x18], %t2; \
>> 65 ldd [%src - (offset) - 0x10], %t4; \
>> 66 ldd [%src - (offset) - 0x08], %t6; \
>> 67 st %t0, [%dst - (offset) - 0x20]; \
>> 68 st %t1, [%dst - (offset) - 0x1c]; \
>> 69 st %t2, [%dst - (offset) - 0x18]; \
>> 70 st %t3, [%dst - (offset) - 0x14]; \
>> 71 st %t4, [%dst - (offset) - 0x10]; \
>> 72 st %t5, [%dst - (offset) - 0x0c]; \
>> 73 st %t6, [%dst - (offset) - 0x08]; \
>> 74 st %t7, [%dst - (offset) - 0x04];
>> 75
>> 76 #define RMOVE_BIGALIGNCHUNK(src, dst, offset, t0, t1, t2, t3, t4, t5, t6, t7) \
>> 77 ldd [%src - (offset) - 0x20], %t0; \
>> 78 ldd [%src - (offset) - 0x18], %t2; \
>> 79 ldd [%src - (offset) - 0x10], %t4; \
>> 80 ldd [%src - (offset) - 0x08], %t6; \
>> 81 std %t0, [%dst - (offset) - 0x20]; \
>> 82 std %t2, [%dst - (offset) - 0x18]; \
>> 83 std %t4, [%dst - (offset) - 0x10]; \
>> 84 std %t6, [%dst - (offset) - 0x08];
>> 85
>> 86 #define RMOVE_LASTCHUNK(src, dst, offset, t0, t1, t2, t3) \
>> 87 ldd [%src + (offset) + 0x00], %t0; \
>> 88 ldd [%src + (offset) + 0x08], %t2; \
>> 89 st %t0, [%dst + (offset) + 0x00]; \
>> 90 st %t1, [%dst + (offset) + 0x04]; \
>> 91 st %t2, [%dst + (offset) + 0x08]; \
>> 92 st %t3, [%dst + (offset) + 0x0c];
>> 93
>> 94 #define RMOVE_SHORTCHUNK(src, dst, offset, t0, t1) \
>> 95 ldub [%src + (offset) + 0x00], %t0; \
>> 96 ldub [%src + (offset) + 0x01], %t1; \
>> 97 stb %t0, [%dst + (offset) + 0x00]; \
>> 98 stb %t1, [%dst + (offset) + 0x01];
>> 99
>> 100 #define SMOVE_CHUNK(src, dst, offset, t0, t1, t2, t3, t4, t5, t6, prev, shil, shir, offset2) \
>> 101 ldd [%src + (offset) + 0x00], %t0; \
>> 102 ldd [%src + (offset) + 0x08], %t2; \
>> 103 srl %t0, shir, %t5; \
>> 104 srl %t1, shir, %t6; \
>> 105 sll %t0, shil, %t0; \
>> 106 or %t5, %prev, %t5; \
>> 107 sll %t1, shil, %prev; \
>> 108 or %t6, %t0, %t0; \
>> 109 srl %t2, shir, %t1; \
>> 110 srl %t3, shir, %t6; \
>> 111 sll %t2, shil, %t2; \
>> 112 or %t1, %prev, %t1; \
>> 113 std %t4, [%dst + (offset) + (offset2) - 0x04]; \
>> 114 std %t0, [%dst + (offset) + (offset2) + 0x04]; \
>> 115 sll %t3, shil, %prev; \
>> 116 or %t6, %t2, %t4;
>> 117
>> 118 #define SMOVE_ALIGNCHUNK(src, dst, offset, t0, t1, t2, t3, t4, t5, t6, prev, shil, shir, offset2) \
>> 119 ldd [%src + (offset) + 0x00], %t0; \
>> 120 ldd [%src + (offset) + 0x08], %t2; \
>> 121 srl %t0, shir, %t4; \
>> 122 srl %t1, shir, %t5; \
>> 123 sll %t0, shil, %t6; \
>> 124 or %t4, %prev, %t0; \
>> 125 sll %t1, shil, %prev; \
>> 126 or %t5, %t6, %t1; \
>> 127 srl %t2, shir, %t4; \
>> 128 srl %t3, shir, %t5; \
>> 129 sll %t2, shil, %t6; \
>> 130 or %t4, %prev, %t2; \
>> 131 sll %t3, shil, %prev; \
>> 132 or %t5, %t6, %t3; \
>> 133 std %t0, [%dst + (offset) + (offset2) + 0x00]; \
>> 134 std %t2, [%dst + (offset) + (offset2) + 0x08];
53 135
54 .text 136 .text
>> 137 .align 4
55 138
56 /* Prototype: void *memcpy(void *dest, const v !! 139 0:
57 !! 140 retl
58 ENTRY(__memcpy) !! 141 nop ! Only bcopy returns here and it retuns void...
59 ENTRY(mmiocpy) !! 142
60 WEAK(memcpy) !! 143 #ifdef __KERNEL__
61 !! 144 FUNC(amemmove)
62 #include "copy_template.S" !! 145 FUNC(__memmove)
>> 146 #endif
>> 147 FUNC(memmove)
>> 148 cmp %o0, %o1
>> 149 mov %o0, %g7
>> 150 bleu 9f
>> 151 sub %o0, %o1, %o4
>> 152
>> 153 add %o1, %o2, %o3
>> 154 cmp %o3, %o0
>> 155 bleu 0f
>> 156 andcc %o4, 3, %o5
>> 157
>> 158 add %o1, %o2, %o1
>> 159 add %o0, %o2, %o0
>> 160 sub %o1, 1, %o1
>> 161 sub %o0, 1, %o0
>> 162
>> 163 1: /* reverse_bytes */
>> 164
>> 165 ldub [%o1], %o4
>> 166 subcc %o2, 1, %o2
>> 167 stb %o4, [%o0]
>> 168 sub %o1, 1, %o1
>> 169 bne 1b
>> 170 sub %o0, 1, %o0
>> 171
>> 172 retl
>> 173 mov %g7, %o0
>> 174
>> 175 /* NOTE: This code is executed just for the cases,
>> 176 where %src (=%o1) & 3 is != 0.
>> 177 We need to align it to 4. So, for (%src & 3)
>> 178 1 we need to do ldub,lduh
>> 179 2 lduh
>> 180 3 just ldub
>> 181 so even if it looks weird, the branches
>> 182 are correct here. -jj
>> 183 */
>> 184 78: /* dword_align */
63 185
64 ENDPROC(memcpy) !! 186 andcc %o1, 1, %g0
65 ENDPROC(mmiocpy) !! 187 be 4f
66 ENDPROC(__memcpy) !! 188 andcc %o1, 2, %g0
>> 189
>> 190 ldub [%o1], %g2
>> 191 add %o1, 1, %o1
>> 192 stb %g2, [%o0]
>> 193 sub %o2, 1, %o2
>> 194 bne 3f
>> 195 add %o0, 1, %o0
>> 196 4:
>> 197 lduh [%o1], %g2
>> 198 add %o1, 2, %o1
>> 199 sth %g2, [%o0]
>> 200 sub %o2, 2, %o2
>> 201 b 3f
>> 202 add %o0, 2, %o0
>> 203
>> 204 FUNC(memcpy) /* %o0=dst %o1=src %o2=len */
>> 205
>> 206 sub %o0, %o1, %o4
>> 207 mov %o0, %g7
>> 208 9:
>> 209 andcc %o4, 3, %o5
>> 210 0:
>> 211 bne 86f
>> 212 cmp %o2, 15
>> 213
>> 214 bleu 90f
>> 215 andcc %o1, 3, %g0
>> 216
>> 217 bne 78b
>> 218 3:
>> 219 andcc %o1, 4, %g0
>> 220
>> 221 be 2f
>> 222 mov %o2, %g1
>> 223
>> 224 ld [%o1], %o4
>> 225 sub %g1, 4, %g1
>> 226 st %o4, [%o0]
>> 227 add %o1, 4, %o1
>> 228 add %o0, 4, %o0
>> 229 2:
>> 230 andcc %g1, 0xffffff80, %g0
>> 231 be 3f
>> 232 andcc %o0, 4, %g0
>> 233
>> 234 be 82f + 4
>> 235 5:
>> 236 MOVE_BIGCHUNK(o1, o0, 0x00, o2, o3, o4, o5, g2, g3, g4, g5)
>> 237 MOVE_BIGCHUNK(o1, o0, 0x20, o2, o3, o4, o5, g2, g3, g4, g5)
>> 238 MOVE_BIGCHUNK(o1, o0, 0x40, o2, o3, o4, o5, g2, g3, g4, g5)
>> 239 MOVE_BIGCHUNK(o1, o0, 0x60, o2, o3, o4, o5, g2, g3, g4, g5)
>> 240 sub %g1, 128, %g1
>> 241 add %o1, 128, %o1
>> 242 cmp %g1, 128
>> 243 bge 5b
>> 244 add %o0, 128, %o0
>> 245 3:
>> 246 andcc %g1, 0x70, %g4
>> 247 be 80f
>> 248 andcc %g1, 8, %g0
>> 249
>> 250 sethi %hi(80f), %o5
>> 251 srl %g4, 1, %o4
>> 252 add %g4, %o4, %o4
>> 253 add %o1, %g4, %o1
>> 254 sub %o5, %o4, %o5
>> 255 jmpl %o5 + %lo(80f), %g0
>> 256 add %o0, %g4, %o0
>> 257
>> 258 79: /* memcpy_table */
>> 259
>> 260 MOVE_LASTCHUNK(o1, o0, 0x60, g2, g3, g4, g5)
>> 261 MOVE_LASTCHUNK(o1, o0, 0x50, g2, g3, g4, g5)
>> 262 MOVE_LASTCHUNK(o1, o0, 0x40, g2, g3, g4, g5)
>> 263 MOVE_LASTCHUNK(o1, o0, 0x30, g2, g3, g4, g5)
>> 264 MOVE_LASTCHUNK(o1, o0, 0x20, g2, g3, g4, g5)
>> 265 MOVE_LASTCHUNK(o1, o0, 0x10, g2, g3, g4, g5)
>> 266 MOVE_LASTCHUNK(o1, o0, 0x00, g2, g3, g4, g5)
>> 267
>> 268 80: /* memcpy_table_end */
>> 269 be 81f
>> 270 andcc %g1, 4, %g0
>> 271
>> 272 ldd [%o1], %g2
>> 273 add %o0, 8, %o0
>> 274 st %g2, [%o0 - 0x08]
>> 275 add %o1, 8, %o1
>> 276 st %g3, [%o0 - 0x04]
>> 277
>> 278 81: /* memcpy_last7 */
>> 279
>> 280 be 1f
>> 281 andcc %g1, 2, %g0
>> 282
>> 283 ld [%o1], %g2
>> 284 add %o1, 4, %o1
>> 285 st %g2, [%o0]
>> 286 add %o0, 4, %o0
>> 287 1:
>> 288 be 1f
>> 289 andcc %g1, 1, %g0
>> 290
>> 291 lduh [%o1], %g2
>> 292 add %o1, 2, %o1
>> 293 sth %g2, [%o0]
>> 294 add %o0, 2, %o0
>> 295 1:
>> 296 be 1f
>> 297 nop
>> 298
>> 299 ldub [%o1], %g2
>> 300 stb %g2, [%o0]
>> 301 1:
>> 302 retl
>> 303 mov %g7, %o0
>> 304
>> 305 82: /* ldd_std */
>> 306 MOVE_BIGALIGNCHUNK(o1, o0, 0x00, o2, o3, o4, o5, g2, g3, g4, g5)
>> 307 MOVE_BIGALIGNCHUNK(o1, o0, 0x20, o2, o3, o4, o5, g2, g3, g4, g5)
>> 308 MOVE_BIGALIGNCHUNK(o1, o0, 0x40, o2, o3, o4, o5, g2, g3, g4, g5)
>> 309 MOVE_BIGALIGNCHUNK(o1, o0, 0x60, o2, o3, o4, o5, g2, g3, g4, g5)
>> 310 subcc %g1, 128, %g1
>> 311 add %o1, 128, %o1
>> 312 cmp %g1, 128
>> 313 bge 82b
>> 314 add %o0, 128, %o0
>> 315
>> 316 andcc %g1, 0x70, %g4
>> 317 be 84f
>> 318 andcc %g1, 8, %g0
>> 319
>> 320 sethi %hi(84f), %o5
>> 321 add %o1, %g4, %o1
>> 322 sub %o5, %g4, %o5
>> 323 jmpl %o5 + %lo(84f), %g0
>> 324 add %o0, %g4, %o0
>> 325
>> 326 83: /* amemcpy_table */
>> 327
>> 328 MOVE_LASTALIGNCHUNK(o1, o0, 0x60, g2, g3, g4, g5)
>> 329 MOVE_LASTALIGNCHUNK(o1, o0, 0x50, g2, g3, g4, g5)
>> 330 MOVE_LASTALIGNCHUNK(o1, o0, 0x40, g2, g3, g4, g5)
>> 331 MOVE_LASTALIGNCHUNK(o1, o0, 0x30, g2, g3, g4, g5)
>> 332 MOVE_LASTALIGNCHUNK(o1, o0, 0x20, g2, g3, g4, g5)
>> 333 MOVE_LASTALIGNCHUNK(o1, o0, 0x10, g2, g3, g4, g5)
>> 334 MOVE_LASTALIGNCHUNK(o1, o0, 0x00, g2, g3, g4, g5)
>> 335
>> 336 84: /* amemcpy_table_end */
>> 337 be 85f
>> 338 andcc %g1, 4, %g0
>> 339
>> 340 ldd [%o1], %g2
>> 341 add %o0, 8, %o0
>> 342 std %g2, [%o0 - 0x08]
>> 343 add %o1, 8, %o1
>> 344 85: /* amemcpy_last7 */
>> 345 be 1f
>> 346 andcc %g1, 2, %g0
>> 347
>> 348 ld [%o1], %g2
>> 349 add %o1, 4, %o1
>> 350 st %g2, [%o0]
>> 351 add %o0, 4, %o0
>> 352 1:
>> 353 be 1f
>> 354 andcc %g1, 1, %g0
>> 355
>> 356 lduh [%o1], %g2
>> 357 add %o1, 2, %o1
>> 358 sth %g2, [%o0]
>> 359 add %o0, 2, %o0
>> 360 1:
>> 361 be 1f
>> 362 nop
>> 363
>> 364 ldub [%o1], %g2
>> 365 stb %g2, [%o0]
>> 366 1:
>> 367 retl
>> 368 mov %g7, %o0
>> 369
>> 370 86: /* non_aligned */
>> 371 cmp %o2, 6
>> 372 bleu 88f
>> 373 nop
>> 374
>> 375 save %sp, -96, %sp
>> 376 andcc %i0, 3, %g0
>> 377 be 61f
>> 378 andcc %i0, 1, %g0
>> 379 be 60f
>> 380 andcc %i0, 2, %g0
>> 381
>> 382 ldub [%i1], %g5
>> 383 add %i1, 1, %i1
>> 384 stb %g5, [%i0]
>> 385 sub %i2, 1, %i2
>> 386 bne 61f
>> 387 add %i0, 1, %i0
>> 388 60:
>> 389 ldub [%i1], %g3
>> 390 add %i1, 2, %i1
>> 391 stb %g3, [%i0]
>> 392 sub %i2, 2, %i2
>> 393 ldub [%i1 - 1], %g3
>> 394 add %i0, 2, %i0
>> 395 stb %g3, [%i0 - 1]
>> 396 61:
>> 397 and %i1, 3, %g2
>> 398 and %i2, 0xc, %g3
>> 399 and %i1, -4, %i1
>> 400 cmp %g3, 4
>> 401 sll %g2, 3, %g4
>> 402 mov 32, %g2
>> 403 be 4f
>> 404 sub %g2, %g4, %l0
>> 405
>> 406 blu 3f
>> 407 cmp %g3, 0x8
>> 408
>> 409 be 2f
>> 410 srl %i2, 2, %g3
>> 411
>> 412 ld [%i1], %i3
>> 413 add %i0, -8, %i0
>> 414 ld [%i1 + 4], %i4
>> 415 b 8f
>> 416 add %g3, 1, %g3
>> 417 2:
>> 418 ld [%i1], %i4
>> 419 add %i0, -12, %i0
>> 420 ld [%i1 + 4], %i5
>> 421 add %g3, 2, %g3
>> 422 b 9f
>> 423 add %i1, -4, %i1
>> 424 3:
>> 425 ld [%i1], %g1
>> 426 add %i0, -4, %i0
>> 427 ld [%i1 + 4], %i3
>> 428 srl %i2, 2, %g3
>> 429 b 7f
>> 430 add %i1, 4, %i1
>> 431 4:
>> 432 ld [%i1], %i5
>> 433 cmp %i2, 7
>> 434 ld [%i1 + 4], %g1
>> 435 srl %i2, 2, %g3
>> 436 bleu 10f
>> 437 add %i1, 8, %i1
>> 438
>> 439 ld [%i1], %i3
>> 440 add %g3, -1, %g3
>> 441 5:
>> 442 sll %i5, %g4, %g2
>> 443 srl %g1, %l0, %g5
>> 444 or %g2, %g5, %g2
>> 445 st %g2, [%i0]
>> 446 7:
>> 447 ld [%i1 + 4], %i4
>> 448 sll %g1, %g4, %g2
>> 449 srl %i3, %l0, %g5
>> 450 or %g2, %g5, %g2
>> 451 st %g2, [%i0 + 4]
>> 452 8:
>> 453 ld [%i1 + 8], %i5
>> 454 sll %i3, %g4, %g2
>> 455 srl %i4, %l0, %g5
>> 456 or %g2, %g5, %g2
>> 457 st %g2, [%i0 + 8]
>> 458 9:
>> 459 ld [%i1 + 12], %g1
>> 460 sll %i4, %g4, %g2
>> 461 srl %i5, %l0, %g5
>> 462 addcc %g3, -4, %g3
>> 463 or %g2, %g5, %g2
>> 464 add %i1, 16, %i1
>> 465 st %g2, [%i0 + 12]
>> 466 add %i0, 16, %i0
>> 467 bne,a 5b
>> 468 ld [%i1], %i3
>> 469 10:
>> 470 sll %i5, %g4, %g2
>> 471 srl %g1, %l0, %g5
>> 472 srl %l0, 3, %g3
>> 473 or %g2, %g5, %g2
>> 474 sub %i1, %g3, %i1
>> 475 andcc %i2, 2, %g0
>> 476 st %g2, [%i0]
>> 477 be 1f
>> 478 andcc %i2, 1, %g0
>> 479
>> 480 ldub [%i1], %g2
>> 481 add %i1, 2, %i1
>> 482 stb %g2, [%i0 + 4]
>> 483 add %i0, 2, %i0
>> 484 ldub [%i1 - 1], %g2
>> 485 stb %g2, [%i0 + 3]
>> 486 1:
>> 487 be 1f
>> 488 nop
>> 489 ldub [%i1], %g2
>> 490 stb %g2, [%i0 + 4]
>> 491 1:
>> 492 ret
>> 493 restore %g7, %g0, %o0
>> 494
>> 495 88: /* short_end */
>> 496
>> 497 and %o2, 0xe, %o3
>> 498 20:
>> 499 sethi %hi(89f), %o5
>> 500 sll %o3, 3, %o4
>> 501 add %o0, %o3, %o0
>> 502 sub %o5, %o4, %o5
>> 503 add %o1, %o3, %o1
>> 504 jmpl %o5 + %lo(89f), %g0
>> 505 andcc %o2, 1, %g0
>> 506
>> 507 MOVE_SHORTCHUNK(o1, o0, 0x0c, g2, g3)
>> 508 MOVE_SHORTCHUNK(o1, o0, 0x0a, g2, g3)
>> 509 MOVE_SHORTCHUNK(o1, o0, 0x08, g2, g3)
>> 510 MOVE_SHORTCHUNK(o1, o0, 0x06, g2, g3)
>> 511 MOVE_SHORTCHUNK(o1, o0, 0x04, g2, g3)
>> 512 MOVE_SHORTCHUNK(o1, o0, 0x02, g2, g3)
>> 513 MOVE_SHORTCHUNK(o1, o0, 0x00, g2, g3)
>> 514
>> 515 89: /* short_table_end */
>> 516
>> 517 be 1f
>> 518 nop
>> 519
>> 520 ldub [%o1], %g2
>> 521 stb %g2, [%o0]
>> 522 1:
>> 523 retl
>> 524 mov %g7, %o0
>> 525
>> 526 90: /* short_aligned_end */
>> 527 bne 88b
>> 528 andcc %o2, 8, %g0
>> 529
>> 530 be 1f
>> 531 andcc %o2, 4, %g0
>> 532
>> 533 ld [%o1 + 0x00], %g2
>> 534 ld [%o1 + 0x04], %g3
>> 535 add %o1, 8, %o1
>> 536 st %g2, [%o0 + 0x00]
>> 537 st %g3, [%o0 + 0x04]
>> 538 add %o0, 8, %o0
>> 539 1:
>> 540 b 81b
>> 541 mov %o2, %g1
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