1 /* $NetBSD: bus_space.h,v 1.16 2012/02/12 16:34:10 matt Exp $ */ 2 3 /*- 4 * Copyright (c) 1996, 1997, 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9 * NASA Ames Research Center. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 /* 34 * Copyright (C) 1997 Scott Reynolds. All rights reserved. 35 * 36 * Redistribution and use in source and binary forms, with or without 37 * modification, are permitted provided that the following conditions 38 * are met: 39 * 1. Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * 2. Redistributions in binary form must reproduce the above copyright 42 * notice, this list of conditions and the following disclaimer in the 43 * documentation and/or other materials provided with the distribution. 44 * 3. The name of the author may not be used to endorse or promote products 45 * derived from this software without specific prior written permission 46 * 47 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 48 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 49 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 50 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 51 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 52 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 53 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 54 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 55 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 56 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 57 */ 58 59 #ifndef _NEXT68K_BUS_SPACE_H_ 60 #define _NEXT68K_BUS_SPACE_H_ 61 /* 62 * Addresses (in bus space). 63 */ 64 typedef u_long bus_addr_t; 65 typedef u_long bus_size_t; 66 67 /* 68 * Access methods for bus resources and address space. 69 */ 70 typedef volatile char * bus_space_tag_t; 71 typedef u_long bus_space_handle_t; 72 73 /* 74 * Value for the next68k bus space tag, not to be used directly by MI code. 75 */ 76 #define NEXT68K_INTIO_BUS_SPACE ((bus_space_tag_t)intiobase) 77 78 /* 79 * Values for the next68k video bus space tags, not to be used directly 80 * by MI code. 81 */ 82 #define NEXT68K_MONO_VIDEO_BUS_SPACE ((bus_space_tag_t)monobase) 83 #define NEXT68K_COLOR_VIDEO_BUS_SPACE ((bus_space_tag_t)colorbase) 84 85 /* 86 * Mapping and unmapping operations. 87 */ 88 #define bus_space_map(t, a, s, f, hp) \ 89 ((((a)>=INTIOBASE)&&((a)+(s)<INTIOTOP)) ? \ 90 ((*(hp)=(bus_space_handle_t)((t)+((a)-INTIOBASE))),0) : \ 91 ((((a)>=MONOBASE)&&((a)+(s)<MONOTOP)) ? \ 92 ((*(hp)=(bus_space_handle_t)((t)+((a)-MONOBASE))),0) : \ 93 ((((a)>=COLORBASE)&&((a)+(s)<COLORTOP)) ? \ 94 ((*(hp)=(bus_space_handle_t)((t)+((a)-COLORBASE))),0) : (-1)))) 95 96 #define bus_space_unmap(t, h, s) 97 98 #define bus_space_subregion(t, h, o, s, hp) \ 99 (*(hp)=(h)+(o)) 100 101 #define BUS_SPACE_MAP_CACHEABLE 0x01 102 #define BUS_SPACE_MAP_LINEAR 0x02 103 104 /* 105 * Allocation and deallocation operations. 106 */ 107 #define bus_space_alloc(t, rs, re, s, a, b, f, ap, hp) \ 108 (-1) 109 110 #define bus_space_free(t, h, s) 111 112 /* 113 * paddr_t bus_space_mmap(bus_space_tag_t t, bus_addr_t base, 114 * off_t offset, int prot, int flags); 115 * 116 * Mmap an area of bus space. 117 */ 118 119 #define bus_space_mmap(t, a, s, prot, flags) \ 120 ((((a)>=INTIOBASE)&&((a)+(s)<INTIOTOP)) ? \ 121 m68k_btop((t)+((a)-INTIOBASE)) : \ 122 ((((a)>=MONOBASE)&&((a)+(s)<MONOTOP)) ? \ 123 m68k_btop((t)+((a)-MONOBASE)) : \ 124 ((((a)>=COLORBASE)&&((a)+(s)<COLORTOP)) ? \ 125 m68k_btop((t)+((a)-COLORBASE)) : (-1)))) 126 127 /* 128 * u_intN_t bus_space_read_N(bus_space_tag_t tag, 129 * bus_space_handle_t bsh, bus_size_t offset); 130 * 131 * Read a 1, 2, 4, or 8 byte quantity from bus space 132 * described by tag/handle/offset. 133 */ 134 135 #define bus_space_read_1(t, h, o) \ 136 ((void) t, (*(volatile u_int8_t *)((h) + (o)))) 137 138 #define bus_space_read_2(t, h, o) \ 139 ((void) t, (*(volatile u_int16_t *)((h) + (o)))) 140 141 #define bus_space_read_4(t, h, o) \ 142 ((void) t, (*(volatile u_int32_t *)((h) + (o)))) 143 144 #if 0 /* Cause a link error for bus_space_read_8 */ 145 #define bus_space_read_8(t, h, o) !!! bus_space_read_8 unimplemented !!! 146 #endif 147 148 /* 149 * void bus_space_read_multi_N(bus_space_tag_t tag, 150 * bus_space_handle_t bsh, bus_size_t offset, 151 * u_intN_t *addr, size_t count); 152 * 153 * Read `count' 1, 2, 4, or 8 byte quantities from bus space 154 * described by tag/handle/offset and copy into buffer provided. 155 */ 156 157 #define bus_space_read_multi_1(t, h, o, a, c) do { \ 158 (void) t; \ 159 __asm volatile (" \ 160 movl %0,%%a0 ; \ 161 movl %1,%%a1 ; \ 162 movl %2,%%d0 ; \ 163 1: movb %%a0@,%%a1@+ ; \ 164 subql #1,%%d0 ; \ 165 jne 1b" : \ 166 : \ 167 "r" ((h) + (o)), "g" (a), "g" (c) : \ 168 "a0","a1","d0"); \ 169 } while (0); 170 171 #define bus_space_read_multi_2(t, h, o, a, c) do { \ 172 (void) t; \ 173 __asm volatile (" \ 174 movl %0,%%a0 ; \ 175 movl %1,%%a1 ; \ 176 movl %2,%%d0 ; \ 177 1: movw %%a0@,%%a1@+ ; \ 178 subql #1,%%d0 ; \ 179 jne 1b" : \ 180 : \ 181 "r" ((h) + (o)), "g" (a), "g" (c) : \ 182 "a0","a1","d0"); \ 183 } while (0); 184 185 #define bus_space_read_multi_4(t, h, o, a, c) do { \ 186 (void) t; \ 187 __asm volatile (" \ 188 movl %0,%%a0 ; \ 189 movl %1,%%a1 ; \ 190 movl %2,%%d0 ; \ 191 1: movl %%a0@,%%a1@+ ; \ 192 subql #1,%%d0 ; \ 193 jne 1b" : \ 194 : \ 195 "r" ((h) + (o)), "g" (a), "g" (c) : \ 196 "a0","a1","d0"); \ 197 } while (0); 198 199 #if 0 /* Cause a link error for bus_space_read_multi_8 */ 200 #define bus_space_read_multi_8 !!! bus_space_read_multi_8 unimplemented !!! 201 #endif 202 203 /* 204 * void bus_space_read_region_N(bus_space_tag_t tag, 205 * bus_space_handle_t bsh, bus_size_t offset, 206 * u_intN_t *addr, size_t count); 207 * 208 * Read `count' 1, 2, 4, or 8 byte quantities from bus space 209 * described by tag/handle and starting at `offset' and copy into 210 * buffer provided. 211 */ 212 213 #define bus_space_read_region_1(t, h, o, a, c) do { \ 214 (void) t; \ 215 __asm volatile (" \ 216 movl %0,%%a0 ; \ 217 movl %1,%%a1 ; \ 218 movl %2,%%d0 ; \ 219 1: movb %%a0@+,%%a1@+ ; \ 220 subql #1,%%d0 ; \ 221 jne 1b" : \ 222 : \ 223 "r" ((h) + (o)), "g" (a), "g" (c) : \ 224 "a0","a1","d0"); \ 225 } while (0); 226 227 #define bus_space_read_region_2(t, h, o, a, c) do { \ 228 (void) t; \ 229 __asm volatile (" \ 230 movl %0,%%a0 ; \ 231 movl %1,%%a1 ; \ 232 movl %2,%%d0 ; \ 233 1: movw %%a0@+,%%a1@+ ; \ 234 subql #1,%%d0 ; \ 235 jne 1b" : \ 236 : \ 237 "r" ((h) + (o)), "g" (a), "g" (c) : \ 238 "a0","a1","d0"); \ 239 } while (0); 240 241 #define bus_space_read_region_4(t, h, o, a, c) do { \ 242 (void) t; \ 243 __asm volatile (" \ 244 movl %0,%%a0 ; \ 245 movl %1,%%a1 ; \ 246 movl %2,%%d0 ; \ 247 1: movl %%a0@+,%%a1@+ ; \ 248 subql #1,%%d0 ; \ 249 jne 1b" : \ 250 : \ 251 "r" ((h) + (o)), "g" (a), "g" (c) : \ 252 "a0","a1","d0"); \ 253 } while (0); 254 255 #if 0 /* Cause a link error for bus_space_read_region_8 */ 256 #define bus_space_read_region_8 !!! bus_space_read_region_8 unimplemented !!! 257 #endif 258 259 /* 260 * void bus_space_write_N(bus_space_tag_t tag, 261 * bus_space_handle_t bsh, bus_size_t offset, 262 * u_intN_t value); 263 * 264 * Write the 1, 2, 4, or 8 byte value `value' to bus space 265 * described by tag/handle/offset. 266 */ 267 268 #define bus_space_write_1(t, h, o, v) \ 269 ((void) t, ((void)(*(volatile u_int8_t *)((h) + (o)) = (v)))) 270 271 #define bus_space_write_2(t, h, o, v) \ 272 ((void) t, ((void)(*(volatile u_int16_t *)((h) + (o)) = (v)))) 273 274 #define bus_space_write_4(t, h, o, v) \ 275 ((void) t, ((void)(*(volatile u_int32_t *)((h) + (o)) = (v)))) 276 277 #if 0 /* Cause a link error for bus_space_write_8 */ 278 #define bus_space_write_8 !!! bus_space_write_8 not implemented !!! 279 #endif 280 281 /* 282 * void bus_space_write_multi_N(bus_space_tag_t tag, 283 * bus_space_handle_t bsh, bus_size_t offset, 284 * const u_intN_t *addr, size_t count); 285 * 286 * Write `count' 1, 2, 4, or 8 byte quantities from the buffer 287 * provided to bus space described by tag/handle/offset. 288 */ 289 290 #define bus_space_write_multi_1(t, h, o, a, c) do { \ 291 (void) t; \ 292 __asm volatile (" \ 293 movl %0,%%a0 ; \ 294 movl %1,%%a1 ; \ 295 movl %2,%%d0 ; \ 296 1: movb %%a1@+,%%a0@ ; \ 297 subql #1,%%d0 ; \ 298 jne 1b" : \ 299 : \ 300 "r" ((h) + (o)), "g" (a), "g" (c) : \ 301 "a0","a1","d0"); \ 302 } while (0); 303 304 #define bus_space_write_multi_2(t, h, o, a, c) do { \ 305 (void) t; \ 306 __asm volatile (" \ 307 movl %0,%%a0 ; \ 308 movl %1,%%a1 ; \ 309 movl %2,%%d0 ; \ 310 1: movw %%a1@+,%%a0@ ; \ 311 subql #1,%%d0 ; \ 312 jne 1b" : \ 313 : \ 314 "r" ((h) + (o)), "g" (a), "g" (c) : \ 315 "a0","a1","d0"); \ 316 } while (0); 317 318 #define bus_space_write_multi_4(t, h, o, a, c) do { \ 319 (void) t; \ 320 __asm volatile (" \ 321 movl %0,%%a0 ; \ 322 movl %1,%%a1 ; \ 323 movl %2,%%d0 ; \ 324 1: movl %%a1@+,%%a0@ ; \ 325 subql #1,%%d0 ; \ 326 jne 1b" : \ 327 : \ 328 "r" ((h) + (o)), "g" (a), "g" (c) : \ 329 "a0","a1","d0"); \ 330 } while (0); 331 332 #if 0 /* Cause a link error for bus_space_write_8 */ 333 #define bus_space_write_multi_8(t, h, o, a, c) \ 334 !!! bus_space_write_multi_8 unimplimented !!! 335 #endif 336 337 /* 338 * void bus_space_write_region_N(bus_space_tag_t tag, 339 * bus_space_handle_t bsh, bus_size_t offset, 340 * const u_intN_t *addr, size_t count); 341 * 342 * Write `count' 1, 2, 4, or 8 byte quantities from the buffer provided 343 * to bus space described by tag/handle starting at `offset'. 344 */ 345 346 #define bus_space_write_region_1(t, h, o, a, c) do { \ 347 (void) t; \ 348 __asm volatile (" \ 349 movl %0,%%a0 ; \ 350 movl %1,%%a1 ; \ 351 movl %2,%%d0 ; \ 352 1: movb %%a1@+,%%a0@+ ; \ 353 subql #1,%%d0 ; \ 354 jne 1b" : \ 355 : \ 356 "r" ((h) + (o)), "g" (a), "g" (c) : \ 357 "a0","a1","d0"); \ 358 } while (0); 359 360 #define bus_space_write_region_2(t, h, o, a, c) do { \ 361 (void) t; \ 362 __asm volatile (" \ 363 movl %0,%%a0 ; \ 364 movl %1,%%a1 ; \ 365 movl %2,%%d0 ; \ 366 1: movw %%a1@+,%%a0@+ ; \ 367 subql #1,%%d0 ; \ 368 jne 1b" : \ 369 : \ 370 "r" ((h) + (o)), "g" (a), "g" (c) : \ 371 "a0","a1","d0"); \ 372 } while (0); 373 374 #define bus_space_write_region_4(t, h, o, a, c) do { \ 375 (void) t; \ 376 __asm volatile (" \ 377 movl %0,%%a0 ; \ 378 movl %1,%%a1 ; \ 379 movl %2,%%d0 ; \ 380 1: movl %%a1@+,%%a0@+ ; \ 381 subql #1,%%d0 ; \ 382 jne 1b" : \ 383 : \ 384 "r" ((h) + (o)), "g" (a), "g" (c) : \ 385 "a0","a1","d0"); \ 386 } while (0); 387 388 #if 0 /* Cause a link error for bus_space_write_region_8 */ 389 #define bus_space_write_region_8 \ 390 !!! bus_space_write_region_8 unimplemented !!! 391 #endif 392 393 /* 394 * void bus_space_set_multi_N(bus_space_tag_t tag, 395 * bus_space_handle_t bsh, bus_size_t offset, u_intN_t val, 396 * size_t count); 397 * 398 * Write the 1, 2, 4, or 8 byte value `val' to bus space described 399 * by tag/handle/offset `count' times. 400 */ 401 402 #define bus_space_set_multi_1(t, h, o, val, c) do { \ 403 (void) t; \ 404 __asm volatile (" \ 405 movl %0,%%a0 ; \ 406 movl %1,%%d1 ; \ 407 movl %2,%%d0 ; \ 408 1: movb %%d1,%%a0@ ; \ 409 subql #1,%%d0 ; \ 410 jne 1b" : \ 411 : \ 412 "r" ((h) + (o)), "g" (val), "g" (c) : \ 413 "a0","d0","d1"); \ 414 } while (0); 415 416 #define bus_space_set_multi_2(t, h, o, val, c) do { \ 417 (void) t; \ 418 __asm volatile (" \ 419 movl %0,%%a0 ; \ 420 movl %1,%%d1 ; \ 421 movl %2,%%d0 ; \ 422 1: movw %%d1,%%a0@ ; \ 423 subql #1,%%d0 ; \ 424 jne 1b" : \ 425 : \ 426 "r" ((h) + (o)), "g" (val), "g" (c) : \ 427 "a0","d0","d1"); \ 428 } while (0); 429 430 #define bus_space_set_multi_4(t, h, o, val, c) do { \ 431 (void) t; \ 432 __asm volatile (" \ 433 movl %0,%%a0 ; \ 434 movl %1,%%d1 ; \ 435 movl %2,%%d0 ; \ 436 1: movl %%d1,%%a0@ ; \ 437 subql #1,%%d0 ; \ 438 jne 1b" : \ 439 : \ 440 "r" ((h) + (o)), "g" (val), "g" (c) : \ 441 "a0","d0","d1"); \ 442 } while (0); 443 444 #if 0 /* Cause a link error for bus_space_set_multi_8 */ 445 #define bus_space_set_multi_8 \ 446 !!! bus_space_set_multi_8 unimplemented !!! 447 #endif 448 449 /* 450 * void bus_space_set_region_N(bus_space_tag_t tag, 451 * bus_space_handle_t bsh, bus_size_t offset, u_intN_t val, 452 * size_t count); 453 * 454 * Write `count' 1, 2, 4, or 8 byte value `val' to bus space described 455 * by tag/handle starting at `offset'. 456 */ 457 458 #define bus_space_set_region_1(t, h, o, val, c) do { \ 459 (void) t; \ 460 __asm volatile (" \ 461 movl %0,%%a0 ; \ 462 movl %1,%%d1 ; \ 463 movl %2,%%d0 ; \ 464 1: movb %%d1,%%a0@+ ; \ 465 subql #1,%%d0 ; \ 466 jne 1b" : \ 467 : \ 468 "r" ((h) + (o)), "g" (val), "g" (c) : \ 469 "a0","d0","d1"); \ 470 } while (0); 471 472 #define bus_space_set_region_2(t, h, o, val, c) do { \ 473 (void) t; \ 474 __asm volatile (" \ 475 movl %0,%%a0 ; \ 476 movl %1,%%d1 ; \ 477 movl %2,%%d0 ; \ 478 1: movw %%d1,%%a0@+ ; \ 479 subql #1,%%d0 ; \ 480 jne 1b" : \ 481 : \ 482 "r" ((h) + (o)), "g" (val), "g" (c) : \ 483 "a0","d0","d1"); \ 484 } while (0); 485 486 #define bus_space_set_region_4(t, h, o, val, c) do { \ 487 (void) t; \ 488 __asm volatile (" \ 489 movl %0,%%a0 ; \ 490 movl %1,%%d1 ; \ 491 movl %2,%%d0 ; \ 492 1: movl %%d1,%%a0@+ ; \ 493 subql #1,%%d0 ; \ 494 jne 1b" : \ 495 : \ 496 "r" ((h) + (o)), "g" (val), "g" (c) : \ 497 "a0","d0","d1"); \ 498 } while (0); 499 500 #if 0 /* Cause a link error for bus_space_set_region_8 */ 501 #define bus_space_set_region_8 \ 502 !!! bus_space_set_region_8 unimplemented !!! 503 #endif 504 505 /* 506 * void bus_space_copy_N(bus_space_tag_t tag, 507 * bus_space_handle_t bsh1, bus_size_t off1, 508 * bus_space_handle_t bsh2, bus_size_t off2, 509 * size_t count); 510 * 511 * Copy `count' 1, 2, 4, or 8 byte values from bus space starting 512 * at tag/bsh1/off1 to bus space starting at tag/bsh2/off2. 513 */ 514 515 #define __NEXT68K_copy_region_N(BYTES) \ 516 static __inline void __CONCAT(bus_space_copy_region_,BYTES) \ 517 (bus_space_tag_t, \ 518 bus_space_handle_t, bus_size_t, \ 519 bus_space_handle_t, bus_size_t, \ 520 bus_size_t); \ 521 \ 522 static __inline void \ 523 __CONCAT(bus_space_copy_region_,BYTES)( \ 524 bus_space_tag_t t, \ 525 bus_space_handle_t h1, \ 526 bus_size_t o1, \ 527 bus_space_handle_t h2, \ 528 bus_size_t o2, \ 529 bus_size_t c) \ 530 { \ 531 bus_size_t o; \ 532 \ 533 if ((h1 + o1) >= (h2 + o2)) { \ 534 /* src after dest: copy forward */ \ 535 for (o = 0; c != 0; c--, o += BYTES) \ 536 __CONCAT(bus_space_write_,BYTES)(t, h2, o2 + o, \ 537 __CONCAT(bus_space_read_,BYTES)(t, h1, o1 + o)); \ 538 } else { \ 539 /* dest after src: copy backwards */ \ 540 for (o = (c - 1) * BYTES; c != 0; c--, o -= BYTES) \ 541 __CONCAT(bus_space_write_,BYTES)(t, h2, o2 + o, \ 542 __CONCAT(bus_space_read_,BYTES)(t, h1, o1 + o)); \ 543 } \ 544 } 545 __NEXT68K_copy_region_N(1) 546 __NEXT68K_copy_region_N(2) 547 __NEXT68K_copy_region_N(4) 548 #if 0 /* Cause a link error for bus_space_copy_8 */ 549 #define bus_space_copy_8 \ 550 !!! bus_space_copy_8 unimplemented !!! 551 #endif 552 553 #undef __NEXT68K_copy_region_N 554 555 /* 556 * Bus read/write barrier methods. 557 * 558 * void bus_space_barrier(bus_space_tag_t tag, 559 * bus_space_handle_t bsh, bus_size_t offset, 560 * bus_size_t len, int flags); 561 * 562 * Note: the 680x0 does not currently require barriers, but we must 563 * provide the flags to MI code. 564 */ 565 #define bus_space_barrier(t, h, o, l, f) \ 566 ((void)((void)(t), (void)(h), (void)(o), (void)(l), (void)(f))) 567 #define BUS_SPACE_BARRIER_READ 0x01 /* force read barrier */ 568 #define BUS_SPACE_BARRIER_WRITE 0x02 /* force write barrier */ 569 570 #define BUS_SPACE_ALIGNED_POINTER(p, t) ALIGNED_POINTER(p, t) 571 572 #endif /* _NEXT68K_BUS_SPACE_H_ */ 573