| 1 | /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * |
| 2 | * Mupen64plus - linkage_arm.s * |
| 3 | * Copyright (C) 2009-2010 Ari64 * |
| 4 | * * |
| 5 | * This program is free software; you can redistribute it and/or modify * |
| 6 | * it under the terms of the GNU General Public License as published by * |
| 7 | * the Free Software Foundation; either version 2 of the License, or * |
| 8 | * (at your option) any later version. * |
| 9 | * * |
| 10 | * This program is distributed in the hope that it will be useful, * |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
| 13 | * GNU General Public License for more details. * |
| 14 | * * |
| 15 | * You should have received a copy of the GNU General Public License * |
| 16 | * along with this program; if not, write to the * |
| 17 | * Free Software Foundation, Inc., * |
| 18 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * |
| 19 | * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ |
| 20 | |
| 21 | .equiv HAVE_ARMV7, 1 |
| 22 | |
| 23 | .if HAVE_ARMV7 |
| 24 | .cpu cortex-a8 |
| 25 | .fpu vfp |
| 26 | .else |
| 27 | .cpu arm9tdmi |
| 28 | .fpu softvfp |
| 29 | .endif |
| 30 | .global rdram |
| 31 | rdram = 0x80000000 |
| 32 | .global dynarec_local |
| 33 | .global reg |
| 34 | .global hi |
| 35 | .global lo |
| 36 | .global reg_cop0 |
| 37 | .global reg_cop2d |
| 38 | .global reg_cop2c |
| 39 | .global FCR0 |
| 40 | .global FCR31 |
| 41 | .global next_interupt |
| 42 | .global cycle_count |
| 43 | .global last_count |
| 44 | .global pending_exception |
| 45 | .global pcaddr |
| 46 | .global stop |
| 47 | .global invc_ptr |
| 48 | .global address |
| 49 | .global readmem_dword |
| 50 | .global readmem_word |
| 51 | .global dword |
| 52 | .global word |
| 53 | .global hword |
| 54 | .global byte |
| 55 | .global branch_target |
| 56 | .global PC |
| 57 | .global mini_ht |
| 58 | .global restore_candidate |
| 59 | .global memory_map |
| 60 | /* psx */ |
| 61 | .global psxRegs |
| 62 | |
| 63 | .bss |
| 64 | .align 4 |
| 65 | .type dynarec_local, %object |
| 66 | .size dynarec_local, dynarec_local_end-dynarec_local |
| 67 | dynarec_local: |
| 68 | .space dynarec_local_end-dynarec_local /*0x400630*/ |
| 69 | next_interupt = dynarec_local + 64 |
| 70 | .type next_interupt, %object |
| 71 | .size next_interupt, 4 |
| 72 | cycle_count = next_interupt + 4 |
| 73 | .type cycle_count, %object |
| 74 | .size cycle_count, 4 |
| 75 | last_count = cycle_count + 4 |
| 76 | .type last_count, %object |
| 77 | .size last_count, 4 |
| 78 | pending_exception = last_count + 4 |
| 79 | .type pending_exception, %object |
| 80 | .size pending_exception, 4 |
| 81 | stop = pending_exception + 4 |
| 82 | .type stop, %object |
| 83 | .size stop, 4 |
| 84 | invc_ptr = stop + 4 |
| 85 | .type invc_ptr, %object |
| 86 | .size invc_ptr, 4 |
| 87 | address = invc_ptr + 4 |
| 88 | .type address, %object |
| 89 | .size address, 4 |
| 90 | readmem_dword = address + 4 |
| 91 | readmem_word = readmem_dword |
| 92 | .type readmem_dword, %object |
| 93 | .size readmem_dword, 8 |
| 94 | dword = readmem_dword + 8 |
| 95 | .type dword, %object |
| 96 | .size dword, 8 |
| 97 | word = dword + 8 |
| 98 | .type word, %object |
| 99 | .size word, 4 |
| 100 | hword = word + 4 |
| 101 | .type hword, %object |
| 102 | .size hword, 2 |
| 103 | byte = hword + 2 |
| 104 | .type byte, %object |
| 105 | .size byte, 1 /* 1 byte free */ |
| 106 | FCR0 = hword + 4 |
| 107 | .type FCR0, %object |
| 108 | .size FCR0, 4 |
| 109 | FCR31 = FCR0 + 4 |
| 110 | .type FCR31, %object |
| 111 | .size FCR31, 4 |
| 112 | reg = FCR31 + 4 |
| 113 | |
| 114 | /* psxRegs */ |
| 115 | psxRegs = reg |
| 116 | .type reg, %object |
| 117 | .size reg, 128 |
| 118 | .size psxRegs, psxRegs_end-psxRegs |
| 119 | lo = reg + 128 |
| 120 | .type lo, %object |
| 121 | .size lo, 4 |
| 122 | hi = lo + 4 |
| 123 | .type hi, %object |
| 124 | .size hi, 4 |
| 125 | reg_cop0 = hi + 4 |
| 126 | .type reg_cop0, %object |
| 127 | .size reg_cop0, 128 |
| 128 | reg_cop2d = reg_cop0 + 128 |
| 129 | .type reg_cop2d, %object |
| 130 | .size reg_cop2d, 128 |
| 131 | reg_cop2c = reg_cop2d + 128 |
| 132 | .type reg_cop2c, %object |
| 133 | .size reg_cop2c, 128 |
| 134 | PC = reg_cop2c + 128 |
| 135 | pcaddr = PC |
| 136 | .type PC, %object |
| 137 | .size PC, 4 |
| 138 | code = PC + 4 |
| 139 | .type code, %object |
| 140 | .size code, 4 |
| 141 | cycle = code + 4 |
| 142 | .type cycle, %object |
| 143 | .size cycle, 4 |
| 144 | interrupt = cycle + 4 |
| 145 | .type interrupt, %object |
| 146 | .size interrupt, 4 |
| 147 | intCycle = interrupt + 4 |
| 148 | .type intCycle, %object |
| 149 | .size intCycle, 128 |
| 150 | psxRegs_end = intCycle + 128 |
| 151 | |
| 152 | align0 = psxRegs_end /* just for alignment */ |
| 153 | .type align0, %object |
| 154 | .size align0, 8 |
| 155 | branch_target = align0 + 8 |
| 156 | .type branch_target, %object |
| 157 | .size branch_target, 4 |
| 158 | mini_ht = branch_target + 4 |
| 159 | .type mini_ht, %object |
| 160 | .size mini_ht, 256 |
| 161 | restore_candidate = mini_ht + 256 |
| 162 | .type restore_candidate, %object |
| 163 | .size restore_candidate, 512 |
| 164 | memory_map = restore_candidate + 512 |
| 165 | .type memory_map, %object |
| 166 | .size memory_map, 4194304 |
| 167 | dynarec_local_end = memory_map + 4194304 |
| 168 | |
| 169 | .text |
| 170 | .align 2 |
| 171 | .global dyna_linker |
| 172 | .type dyna_linker, %function |
| 173 | dyna_linker: |
| 174 | /* r0 = virtual target address */ |
| 175 | /* r1 = instruction to patch */ |
| 176 | mov r12, r0 |
| 177 | mov r6, #4096 |
| 178 | mov r2, #0x80000 |
| 179 | ldr r3, .jiptr |
| 180 | sub r6, r6, #1 |
| 181 | ldr r7, [r1] |
| 182 | eor r2, r2, r12, lsr #12 |
| 183 | and r6, r6, r12, lsr #12 |
| 184 | cmp r2, #2048 |
| 185 | add r12, r7, #2 |
| 186 | orrcs r2, r6, #2048 |
| 187 | ldr r5, [r3, r2, lsl #2] |
| 188 | lsl r12, r12, #8 |
| 189 | /* jump_in lookup */ |
| 190 | .A1: |
| 191 | movs r4, r5 |
| 192 | beq .A3 |
| 193 | ldr r3, [r5] |
| 194 | ldr r5, [r4, #12] |
| 195 | teq r3, r0 |
| 196 | bne .A1 |
| 197 | ldr r3, [r4, #4] |
| 198 | ldr r4, [r4, #8] |
| 199 | tst r3, r3 |
| 200 | bne .A1 |
| 201 | .A2: |
| 202 | mov r5, r1 |
| 203 | add r1, r1, r12, asr #6 |
| 204 | teq r1, r4 |
| 205 | moveq pc, r4 /* Stale i-cache */ |
| 206 | bl add_link |
| 207 | sub r2, r4, r5 |
| 208 | and r1, r7, #0xff000000 |
| 209 | lsl r2, r2, #6 |
| 210 | sub r1, r1, #2 |
| 211 | add r1, r1, r2, lsr #8 |
| 212 | str r1, [r5] |
| 213 | mov pc, r4 |
| 214 | .A3: |
| 215 | /* hash_table lookup */ |
| 216 | cmp r2, #2048 |
| 217 | ldr r3, .jdptr |
| 218 | eor r4, r0, r0, lsl #16 |
| 219 | lslcc r2, r0, #9 |
| 220 | ldr r6, .htptr |
| 221 | lsr r4, r4, #12 |
| 222 | lsrcc r2, r2, #21 |
| 223 | bic r4, r4, #15 |
| 224 | ldr r5, [r3, r2, lsl #2] |
| 225 | ldr r7, [r6, r4]! |
| 226 | teq r7, r0 |
| 227 | ldreq pc, [r6, #4] |
| 228 | ldr r7, [r6, #8] |
| 229 | teq r7, r0 |
| 230 | ldreq pc, [r6, #12] |
| 231 | /* jump_dirty lookup */ |
| 232 | .A6: |
| 233 | movs r4, r5 |
| 234 | beq .A8 |
| 235 | ldr r3, [r5] |
| 236 | ldr r5, [r4, #12] |
| 237 | teq r3, r0 |
| 238 | bne .A6 |
| 239 | .A7: |
| 240 | ldr r1, [r4, #8] |
| 241 | /* hash_table insert */ |
| 242 | ldr r2, [r6] |
| 243 | ldr r3, [r6, #4] |
| 244 | str r0, [r6] |
| 245 | str r1, [r6, #4] |
| 246 | str r2, [r6, #8] |
| 247 | str r3, [r6, #12] |
| 248 | mov pc, r1 |
| 249 | .A8: |
| 250 | mov r4, r0 |
| 251 | mov r5, r1 |
| 252 | bl new_recompile_block |
| 253 | tst r0, r0 |
| 254 | mov r0, r4 |
| 255 | mov r1, r5 |
| 256 | beq dyna_linker |
| 257 | /* pagefault */ |
| 258 | mov r1, r0 |
| 259 | mov r2, #8 |
| 260 | .size dyna_linker, .-dyna_linker |
| 261 | .global exec_pagefault |
| 262 | .type exec_pagefault, %function |
| 263 | exec_pagefault: |
| 264 | /* r0 = instruction pointer */ |
| 265 | /* r1 = fault address */ |
| 266 | /* r2 = cause */ |
| 267 | ldr r3, [fp, #reg_cop0+48-dynarec_local] /* Status */ |
| 268 | mvn r6, #0xF000000F |
| 269 | ldr r4, [fp, #reg_cop0+16-dynarec_local] /* Context */ |
| 270 | bic r6, r6, #0x0F800000 |
| 271 | str r0, [fp, #reg_cop0+56-dynarec_local] /* EPC */ |
| 272 | orr r3, r3, #2 |
| 273 | str r1, [fp, #reg_cop0+32-dynarec_local] /* BadVAddr */ |
| 274 | bic r4, r4, r6 |
| 275 | str r3, [fp, #reg_cop0+48-dynarec_local] /* Status */ |
| 276 | and r5, r6, r1, lsr #9 |
| 277 | str r2, [fp, #reg_cop0+52-dynarec_local] /* Cause */ |
| 278 | and r1, r1, r6, lsl #9 |
| 279 | str r1, [fp, #reg_cop0+40-dynarec_local] /* EntryHi */ |
| 280 | orr r4, r4, r5 |
| 281 | str r4, [fp, #reg_cop0+16-dynarec_local] /* Context */ |
| 282 | mov r0, #0x80000000 |
| 283 | bl get_addr_ht |
| 284 | mov pc, r0 |
| 285 | .size exec_pagefault, .-exec_pagefault |
| 286 | |
| 287 | /* Special dynamic linker for the case where a page fault |
| 288 | may occur in a branch delay slot */ |
| 289 | .global dyna_linker_ds |
| 290 | .type dyna_linker_ds, %function |
| 291 | dyna_linker_ds: |
| 292 | /* r0 = virtual target address */ |
| 293 | /* r1 = instruction to patch */ |
| 294 | mov r12, r0 |
| 295 | mov r6, #4096 |
| 296 | mov r2, #0x80000 |
| 297 | ldr r3, .jiptr |
| 298 | sub r6, r6, #1 |
| 299 | ldr r7, [r1] |
| 300 | eor r2, r2, r12, lsr #12 |
| 301 | and r6, r6, r12, lsr #12 |
| 302 | cmp r2, #2048 |
| 303 | add r12, r7, #2 |
| 304 | orrcs r2, r6, #2048 |
| 305 | ldr r5, [r3, r2, lsl #2] |
| 306 | lsl r12, r12, #8 |
| 307 | /* jump_in lookup */ |
| 308 | .B1: |
| 309 | movs r4, r5 |
| 310 | beq .B3 |
| 311 | ldr r3, [r5] |
| 312 | ldr r5, [r4, #12] |
| 313 | teq r3, r0 |
| 314 | bne .B1 |
| 315 | ldr r3, [r4, #4] |
| 316 | ldr r4, [r4, #8] |
| 317 | tst r3, r3 |
| 318 | bne .B1 |
| 319 | .B2: |
| 320 | mov r5, r1 |
| 321 | add r1, r1, r12, asr #6 |
| 322 | teq r1, r4 |
| 323 | moveq pc, r4 /* Stale i-cache */ |
| 324 | bl add_link |
| 325 | sub r2, r4, r5 |
| 326 | and r1, r7, #0xff000000 |
| 327 | lsl r2, r2, #6 |
| 328 | sub r1, r1, #2 |
| 329 | add r1, r1, r2, lsr #8 |
| 330 | str r1, [r5] |
| 331 | mov pc, r4 |
| 332 | .B3: |
| 333 | /* hash_table lookup */ |
| 334 | cmp r2, #2048 |
| 335 | ldr r3, .jdptr |
| 336 | eor r4, r0, r0, lsl #16 |
| 337 | lslcc r2, r0, #9 |
| 338 | ldr r6, .htptr |
| 339 | lsr r4, r4, #12 |
| 340 | lsrcc r2, r2, #21 |
| 341 | bic r4, r4, #15 |
| 342 | ldr r5, [r3, r2, lsl #2] |
| 343 | ldr r7, [r6, r4]! |
| 344 | teq r7, r0 |
| 345 | ldreq pc, [r6, #4] |
| 346 | ldr r7, [r6, #8] |
| 347 | teq r7, r0 |
| 348 | ldreq pc, [r6, #12] |
| 349 | /* jump_dirty lookup */ |
| 350 | .B6: |
| 351 | movs r4, r5 |
| 352 | beq .B8 |
| 353 | ldr r3, [r5] |
| 354 | ldr r5, [r4, #12] |
| 355 | teq r3, r0 |
| 356 | bne .B6 |
| 357 | .B7: |
| 358 | ldr r1, [r4, #8] |
| 359 | /* hash_table insert */ |
| 360 | ldr r2, [r6] |
| 361 | ldr r3, [r6, #4] |
| 362 | str r0, [r6] |
| 363 | str r1, [r6, #4] |
| 364 | str r2, [r6, #8] |
| 365 | str r3, [r6, #12] |
| 366 | mov pc, r1 |
| 367 | .B8: |
| 368 | mov r4, r0 |
| 369 | bic r0, r0, #7 |
| 370 | mov r5, r1 |
| 371 | orr r0, r0, #1 |
| 372 | bl new_recompile_block |
| 373 | tst r0, r0 |
| 374 | mov r0, r4 |
| 375 | mov r1, r5 |
| 376 | beq dyna_linker_ds |
| 377 | /* pagefault */ |
| 378 | bic r1, r0, #7 |
| 379 | mov r2, #0x80000008 /* High bit set indicates pagefault in delay slot */ |
| 380 | sub r0, r1, #4 |
| 381 | b exec_pagefault |
| 382 | .size dyna_linker_ds, .-dyna_linker_ds |
| 383 | .jiptr: |
| 384 | .word jump_in |
| 385 | .jdptr: |
| 386 | .word jump_dirty |
| 387 | .htptr: |
| 388 | .word hash_table |
| 389 | |
| 390 | .align 2 |
| 391 | .global jump_vaddr_r0 |
| 392 | .type jump_vaddr_r0, %function |
| 393 | jump_vaddr_r0: |
| 394 | eor r2, r0, r0, lsl #16 |
| 395 | b jump_vaddr |
| 396 | .size jump_vaddr_r0, .-jump_vaddr_r0 |
| 397 | .global jump_vaddr_r1 |
| 398 | .type jump_vaddr_r1, %function |
| 399 | jump_vaddr_r1: |
| 400 | eor r2, r1, r1, lsl #16 |
| 401 | mov r0, r1 |
| 402 | b jump_vaddr |
| 403 | .size jump_vaddr_r1, .-jump_vaddr_r1 |
| 404 | .global jump_vaddr_r2 |
| 405 | .type jump_vaddr_r2, %function |
| 406 | jump_vaddr_r2: |
| 407 | mov r0, r2 |
| 408 | eor r2, r2, r2, lsl #16 |
| 409 | b jump_vaddr |
| 410 | .size jump_vaddr_r2, .-jump_vaddr_r2 |
| 411 | .global jump_vaddr_r3 |
| 412 | .type jump_vaddr_r3, %function |
| 413 | jump_vaddr_r3: |
| 414 | eor r2, r3, r3, lsl #16 |
| 415 | mov r0, r3 |
| 416 | b jump_vaddr |
| 417 | .size jump_vaddr_r3, .-jump_vaddr_r3 |
| 418 | .global jump_vaddr_r4 |
| 419 | .type jump_vaddr_r4, %function |
| 420 | jump_vaddr_r4: |
| 421 | eor r2, r4, r4, lsl #16 |
| 422 | mov r0, r4 |
| 423 | b jump_vaddr |
| 424 | .size jump_vaddr_r4, .-jump_vaddr_r4 |
| 425 | .global jump_vaddr_r5 |
| 426 | .type jump_vaddr_r5, %function |
| 427 | jump_vaddr_r5: |
| 428 | eor r2, r5, r5, lsl #16 |
| 429 | mov r0, r5 |
| 430 | b jump_vaddr |
| 431 | .size jump_vaddr_r5, .-jump_vaddr_r5 |
| 432 | .global jump_vaddr_r6 |
| 433 | .type jump_vaddr_r6, %function |
| 434 | jump_vaddr_r6: |
| 435 | eor r2, r6, r6, lsl #16 |
| 436 | mov r0, r6 |
| 437 | b jump_vaddr |
| 438 | .size jump_vaddr_r6, .-jump_vaddr_r6 |
| 439 | .global jump_vaddr_r8 |
| 440 | .type jump_vaddr_r8, %function |
| 441 | jump_vaddr_r8: |
| 442 | eor r2, r8, r8, lsl #16 |
| 443 | mov r0, r8 |
| 444 | b jump_vaddr |
| 445 | .size jump_vaddr_r8, .-jump_vaddr_r8 |
| 446 | .global jump_vaddr_r9 |
| 447 | .type jump_vaddr_r9, %function |
| 448 | jump_vaddr_r9: |
| 449 | eor r2, r9, r9, lsl #16 |
| 450 | mov r0, r9 |
| 451 | b jump_vaddr |
| 452 | .size jump_vaddr_r9, .-jump_vaddr_r9 |
| 453 | .global jump_vaddr_r10 |
| 454 | .type jump_vaddr_r10, %function |
| 455 | jump_vaddr_r10: |
| 456 | eor r2, r10, r10, lsl #16 |
| 457 | mov r0, r10 |
| 458 | b jump_vaddr |
| 459 | .size jump_vaddr_r10, .-jump_vaddr_r10 |
| 460 | .global jump_vaddr_r12 |
| 461 | .type jump_vaddr_r12, %function |
| 462 | jump_vaddr_r12: |
| 463 | eor r2, r12, r12, lsl #16 |
| 464 | mov r0, r12 |
| 465 | b jump_vaddr |
| 466 | .size jump_vaddr_r12, .-jump_vaddr_r12 |
| 467 | .global jump_vaddr_r7 |
| 468 | .type jump_vaddr_r7, %function |
| 469 | jump_vaddr_r7: |
| 470 | eor r2, r7, r7, lsl #16 |
| 471 | add r0, r7, #0 |
| 472 | .size jump_vaddr_r7, .-jump_vaddr_r7 |
| 473 | .global jump_vaddr |
| 474 | .type jump_vaddr, %function |
| 475 | jump_vaddr: |
| 476 | ldr r1, .htptr |
| 477 | mvn r3, #15 |
| 478 | and r2, r3, r2, lsr #12 |
| 479 | ldr r2, [r1, r2]! |
| 480 | teq r2, r0 |
| 481 | ldreq pc, [r1, #4] |
| 482 | ldr r2, [r1, #8] |
| 483 | teq r2, r0 |
| 484 | ldreq pc, [r1, #12] |
| 485 | str r10, [fp, #cycle_count-dynarec_local] |
| 486 | bl get_addr |
| 487 | ldr r10, [fp, #cycle_count-dynarec_local] |
| 488 | mov pc, r0 |
| 489 | .size jump_vaddr, .-jump_vaddr |
| 490 | |
| 491 | .align 2 |
| 492 | .global verify_code_ds |
| 493 | .type verify_code_ds, %function |
| 494 | verify_code_ds: |
| 495 | str r8, [fp, #branch_target-dynarec_local] |
| 496 | .size verify_code_ds, .-verify_code_ds |
| 497 | .global verify_code_vm |
| 498 | .type verify_code_vm, %function |
| 499 | verify_code_vm: |
| 500 | .global verify_code |
| 501 | .type verify_code, %function |
| 502 | verify_code: |
| 503 | /* r1 = source */ |
| 504 | /* r2 = target */ |
| 505 | /* r3 = length */ |
| 506 | tst r3, #4 |
| 507 | mov r4, #0 |
| 508 | add r3, r1, r3 |
| 509 | mov r5, #0 |
| 510 | ldrne r4, [r1], #4 |
| 511 | mov r12, #0 |
| 512 | ldrne r5, [r2], #4 |
| 513 | teq r1, r3 |
| 514 | beq .D3 |
| 515 | .D2: |
| 516 | ldr r7, [r1], #4 |
| 517 | eor r9, r4, r5 |
| 518 | ldr r8, [r2], #4 |
| 519 | orrs r9, r9, r12 |
| 520 | bne .D4 |
| 521 | ldr r4, [r1], #4 |
| 522 | eor r12, r7, r8 |
| 523 | ldr r5, [r2], #4 |
| 524 | cmp r1, r3 |
| 525 | bcc .D2 |
| 526 | teq r7, r8 |
| 527 | .D3: |
| 528 | teqeq r4, r5 |
| 529 | .D4: |
| 530 | ldr r8, [fp, #branch_target-dynarec_local] |
| 531 | moveq pc, lr |
| 532 | .D5: |
| 533 | bl get_addr |
| 534 | mov pc, r0 |
| 535 | .size verify_code, .-verify_code |
| 536 | .size verify_code_vm, .-verify_code_vm |
| 537 | |
| 538 | .align 2 |
| 539 | .global cc_interrupt |
| 540 | .type cc_interrupt, %function |
| 541 | cc_interrupt: |
| 542 | ldr r0, [fp, #last_count-dynarec_local] |
| 543 | mov r1, #0 |
| 544 | mov r2, #0x1fc |
| 545 | add r10, r0, r10 |
| 546 | str r1, [fp, #pending_exception-dynarec_local] |
| 547 | and r2, r2, r10, lsr #17 |
| 548 | add r3, fp, #restore_candidate-dynarec_local |
| 549 | str r10, [fp, #cycle-dynarec_local] /* PCSX cycles */ |
| 550 | @@ str r10, [fp, #reg_cop0+36-dynarec_local] /* Count */ |
| 551 | ldr r4, [r2, r3] |
| 552 | mov r10, lr |
| 553 | tst r4, r4 |
| 554 | bne .E4 |
| 555 | .E1: |
| 556 | bl gen_interupt |
| 557 | mov lr, r10 |
| 558 | ldr r10, [fp, #cycle-dynarec_local] |
| 559 | ldr r0, [fp, #next_interupt-dynarec_local] |
| 560 | ldr r1, [fp, #pending_exception-dynarec_local] |
| 561 | ldr r2, [fp, #stop-dynarec_local] |
| 562 | str r0, [fp, #last_count-dynarec_local] |
| 563 | sub r10, r10, r0 |
| 564 | tst r2, r2 |
| 565 | ldmnefd sp!, {r4, r5, r6, r7, r8, r9, sl, fp, ip, pc} |
| 566 | tst r1, r1 |
| 567 | moveq pc, lr |
| 568 | .E2: |
| 569 | ldr r0, [fp, #pcaddr-dynarec_local] |
| 570 | bl get_addr_ht |
| 571 | mov pc, r0 |
| 572 | .E4: |
| 573 | /* Move 'dirty' blocks to the 'clean' list */ |
| 574 | lsl r5, r2, #3 |
| 575 | str r1, [r2, r3] |
| 576 | .E5: |
| 577 | lsrs r4, r4, #1 |
| 578 | mov r0, r5 |
| 579 | add r5, r5, #1 |
| 580 | blcs clean_blocks |
| 581 | tst r5, #31 |
| 582 | bne .E5 |
| 583 | b .E1 |
| 584 | .size cc_interrupt, .-cc_interrupt |
| 585 | |
| 586 | .align 2 |
| 587 | .global do_interrupt |
| 588 | .type do_interrupt, %function |
| 589 | do_interrupt: |
| 590 | /* FIXME: cycles already calculated, not needed? */ |
| 591 | ldr r0, [fp, #pcaddr-dynarec_local] |
| 592 | bl get_addr_ht |
| 593 | ldr r1, [fp, #next_interupt-dynarec_local] |
| 594 | ldr r10, [fp, #cycle-dynarec_local] |
| 595 | str r1, [fp, #last_count-dynarec_local] |
| 596 | sub r10, r10, r1 |
| 597 | add r10, r10, #2 |
| 598 | mov pc, r0 |
| 599 | .size do_interrupt, .-do_interrupt |
| 600 | .align 2 |
| 601 | .global fp_exception |
| 602 | .type fp_exception, %function |
| 603 | fp_exception: |
| 604 | mov r2, #0x10000000 |
| 605 | .E7: |
| 606 | ldr r1, [fp, #reg_cop0+48-dynarec_local] /* Status */ |
| 607 | mov r3, #0x80000000 |
| 608 | str r0, [fp, #reg_cop0+56-dynarec_local] /* EPC */ |
| 609 | orr r1, #2 |
| 610 | add r2, r2, #0x2c |
| 611 | str r1, [fp, #reg_cop0+48-dynarec_local] /* Status */ |
| 612 | str r2, [fp, #reg_cop0+52-dynarec_local] /* Cause */ |
| 613 | add r0, r3, #0x80 |
| 614 | bl get_addr_ht |
| 615 | mov pc, r0 |
| 616 | .size fp_exception, .-fp_exception |
| 617 | .align 2 |
| 618 | .global fp_exception_ds |
| 619 | .type fp_exception_ds, %function |
| 620 | fp_exception_ds: |
| 621 | mov r2, #0x90000000 /* Set high bit if delay slot */ |
| 622 | b .E7 |
| 623 | .size fp_exception_ds, .-fp_exception_ds |
| 624 | |
| 625 | .align 2 |
| 626 | .global jump_syscall |
| 627 | .type jump_syscall, %function |
| 628 | jump_syscall: |
| 629 | ldr r1, [fp, #reg_cop0+48-dynarec_local] /* Status */ |
| 630 | mov r3, #0x80000000 |
| 631 | str r0, [fp, #reg_cop0+56-dynarec_local] /* EPC */ |
| 632 | orr r1, #2 |
| 633 | mov r2, #0x20 |
| 634 | str r1, [fp, #reg_cop0+48-dynarec_local] /* Status */ |
| 635 | str r2, [fp, #reg_cop0+52-dynarec_local] /* Cause */ |
| 636 | add r0, r3, #0x80 |
| 637 | bl get_addr_ht |
| 638 | mov pc, r0 |
| 639 | .size jump_syscall, .-jump_syscall |
| 640 | .align 2 |
| 641 | |
| 642 | .align 2 |
| 643 | .global jump_syscall_hle |
| 644 | .type jump_syscall_hle, %function |
| 645 | jump_syscall_hle: |
| 646 | str r0, [fp, #pcaddr-dynarec_local] /* PC must be set to EPC for psxException */ |
| 647 | ldr r2, [fp, #last_count-dynarec_local] |
| 648 | mov r1, #0 /* in delay slot */ |
| 649 | add r2, r2, r10 |
| 650 | mov r0, #0x20 /* cause */ |
| 651 | str r2, [fp, #cycle-dynarec_local] /* PCSX cycle counter */ |
| 652 | bl psxException |
| 653 | |
| 654 | /* note: psxException might do recorsive recompiler call from it's HLE code, |
| 655 | * so be ready for this */ |
| 656 | pcsx_return: |
| 657 | ldr r1, [fp, #next_interupt-dynarec_local] |
| 658 | ldr r10, [fp, #cycle-dynarec_local] |
| 659 | ldr r0, [fp, #pcaddr-dynarec_local] |
| 660 | sub r10, r10, r1 |
| 661 | str r1, [fp, #last_count-dynarec_local] |
| 662 | bl get_addr_ht |
| 663 | mov pc, r0 |
| 664 | .size jump_syscall_hle, .-jump_syscall_hle |
| 665 | |
| 666 | .align 2 |
| 667 | .global jump_hlecall |
| 668 | .type jump_hlecall, %function |
| 669 | jump_hlecall: |
| 670 | ldr r2, [fp, #last_count-dynarec_local] |
| 671 | str r0, [fp, #pcaddr-dynarec_local] |
| 672 | add r2, r2, r10 |
| 673 | str r2, [fp, #cycle-dynarec_local] /* PCSX cycle counter */ |
| 674 | adr lr, pcsx_return |
| 675 | bx r1 |
| 676 | .size jump_hlecall, .-jump_hlecall |
| 677 | |
| 678 | new_dyna_leave: |
| 679 | .align 2 |
| 680 | .global new_dyna_leave |
| 681 | .type new_dyna_leave, %function |
| 682 | ldr r0, [fp, #last_count-dynarec_local] |
| 683 | add r12, fp, #28 |
| 684 | add r10, r0, r10 |
| 685 | str r10, [fp, #cycle-dynarec_local] |
| 686 | ldmfd sp!, {r4, r5, r6, r7, r8, r9, sl, fp, ip, pc} |
| 687 | .size new_dyna_leave, .-new_dyna_leave |
| 688 | |
| 689 | /* these are used to call memhandlers */ |
| 690 | .align 2 |
| 691 | .global indirect_jump_indexed |
| 692 | .type indirect_jump_indexed, %function |
| 693 | indirect_jump_indexed: |
| 694 | ldr r0, [r0, r1, lsl #2] |
| 695 | .global indirect_jump |
| 696 | .type indirect_jump, %function |
| 697 | indirect_jump: |
| 698 | ldr r12, [fp, #last_count-dynarec_local] |
| 699 | add r2, r2, r12 |
| 700 | str r2, [fp, #cycle-dynarec_local] |
| 701 | mov pc, r0 |
| 702 | .size indirect_jump, .-indirect_jump |
| 703 | .size indirect_jump_indexed, .-indirect_jump_indexed |
| 704 | |
| 705 | .align 2 |
| 706 | .global jump_eret |
| 707 | .type jump_eret, %function |
| 708 | jump_eret: |
| 709 | ldr r1, [fp, #reg_cop0+48-dynarec_local] /* Status */ |
| 710 | ldr r0, [fp, #last_count-dynarec_local] |
| 711 | bic r1, r1, #2 |
| 712 | add r10, r0, r10 |
| 713 | str r1, [fp, #reg_cop0+48-dynarec_local] /* Status */ |
| 714 | str r10, [fp, #cycle-dynarec_local] |
| 715 | bl check_interupt |
| 716 | ldr r1, [fp, #next_interupt-dynarec_local] |
| 717 | ldr r0, [fp, #reg_cop0+56-dynarec_local] /* EPC */ |
| 718 | str r1, [fp, #last_count-dynarec_local] |
| 719 | subs r10, r10, r1 |
| 720 | bpl .E11 |
| 721 | .E8: |
| 722 | bl get_addr |
| 723 | mov pc, r0 |
| 724 | .E11: |
| 725 | str r0, [fp, #pcaddr-dynarec_local] |
| 726 | bl cc_interrupt |
| 727 | ldr r0, [fp, #pcaddr-dynarec_local] |
| 728 | b .E8 |
| 729 | .size jump_eret, .-jump_eret |
| 730 | |
| 731 | .align 2 |
| 732 | .global new_dyna_start |
| 733 | .type new_dyna_start, %function |
| 734 | new_dyna_start: |
| 735 | /* ip is stored to conform EABI alignment */ |
| 736 | stmfd sp!, {r4, r5, r6, r7, r8, r9, sl, fp, ip, lr} |
| 737 | .if HAVE_ARMV7 |
| 738 | movw fp, #:lower16:dynarec_local |
| 739 | movt fp, #:upper16:dynarec_local |
| 740 | .else |
| 741 | ldr fp, .dlptr |
| 742 | .endif |
| 743 | ldr r0, [fp, #pcaddr-dynarec_local] |
| 744 | bl get_addr_ht |
| 745 | ldr r1, [fp, #next_interupt-dynarec_local] |
| 746 | ldr r10, [fp, #cycle-dynarec_local] |
| 747 | str r1, [fp, #last_count-dynarec_local] |
| 748 | sub r10, r10, r1 |
| 749 | mov pc, r0 |
| 750 | .dlptr: |
| 751 | .word dynarec_local |
| 752 | .size new_dyna_start, .-new_dyna_start |
| 753 | |
| 754 | .align 2 |
| 755 | .global write_rdram_new |
| 756 | .type write_rdram_new, %function |
| 757 | write_rdram_new: |
| 758 | ldr r2, [fp, #address-dynarec_local] |
| 759 | ldr r0, [fp, #word-dynarec_local] |
| 760 | str r0, [r2] |
| 761 | b .E12 |
| 762 | .size write_rdram_new, .-write_rdram_new |
| 763 | .align 2 |
| 764 | .global write_rdramb_new |
| 765 | .type write_rdramb_new, %function |
| 766 | write_rdramb_new: |
| 767 | ldr r2, [fp, #address-dynarec_local] |
| 768 | ldrb r0, [fp, #byte-dynarec_local] |
| 769 | eor r2, r2, #3 |
| 770 | strb r0, [r2] |
| 771 | b .E12 |
| 772 | .size write_rdramb_new, .-write_rdramb_new |
| 773 | .align 2 |
| 774 | .global write_rdramh_new |
| 775 | .type write_rdramh_new, %function |
| 776 | write_rdramh_new: |
| 777 | ldr r2, [fp, #address-dynarec_local] |
| 778 | ldrh r0, [fp, #hword-dynarec_local] |
| 779 | eor r2, r2, #2 |
| 780 | strh r0, [r2] |
| 781 | b .E12 |
| 782 | .size write_rdramh_new, .-write_rdramh_new |
| 783 | |
| 784 | .align 2 |
| 785 | .global do_invalidate |
| 786 | .type do_invalidate, %function |
| 787 | do_invalidate: |
| 788 | ldr r2, [fp, #address-dynarec_local] |
| 789 | .E12: |
| 790 | ldr r1, [fp, #invc_ptr-dynarec_local] |
| 791 | lsr r0, r2, #12 |
| 792 | ldrb r2, [r1, r0] |
| 793 | tst r2, r2 |
| 794 | beq invalidate_block |
| 795 | mov pc, lr |
| 796 | .size do_invalidate, .-do_invalidate |
| 797 | |
| 798 | .align 2 |
| 799 | .global read_nomem_new |
| 800 | .type read_nomem_new, %function |
| 801 | /*read_nomem_new:*/ |
| 802 | read_nomemb_new: |
| 803 | read_nomemh_new: |
| 804 | read_nomemd_new: |
| 805 | /* should never happen */ |
| 806 | b read_nomem_new |
| 807 | /* |
| 808 | ldr r2, [fp, #address-dynarec_local] |
| 809 | add r12, fp, #memory_map-dynarec_local |
| 810 | lsr r0, r2, #12 |
| 811 | ldr r12, [r12, r0, lsl #2] |
| 812 | mov r1, #8 |
| 813 | tst r12, r12 |
| 814 | bmi tlb_exception |
| 815 | ldr r0, [r2, r12, lsl #2] |
| 816 | str r0, [fp, #readmem_dword-dynarec_local] |
| 817 | mov pc, lr |
| 818 | */ |
| 819 | .size read_nomem_new, .-read_nomem_new |
| 820 | /* |
| 821 | .align 2 |
| 822 | .global read_nomemb_new |
| 823 | .type read_nomemb_new, %function |
| 824 | write_nomem_new: |
| 825 | str r3, [fp, #24] |
| 826 | str lr, [fp, #28] |
| 827 | bl do_invalidate |
| 828 | ldr r2, [fp, #address-dynarec_local] |
| 829 | add r12, fp, #memory_map-dynarec_local |
| 830 | ldr lr, [fp, #28] |
| 831 | lsr r0, r2, #12 |
| 832 | ldr r3, [fp, #24] |
| 833 | ldr r12, [r12, r0, lsl #2] |
| 834 | mov r1, #0xc |
| 835 | tst r12, #0x40000000 |
| 836 | bne tlb_exception |
| 837 | ldr r0, [fp, #word-dynarec_local] |
| 838 | str r0, [r2, r12, lsl #2] |
| 839 | mov pc, lr |
| 840 | .size write_nomem_new, .-write_nomem_new |
| 841 | |
| 842 | .align 2 |
| 843 | .global write_nomemb_new |
| 844 | .type write_nomemb_new, %function |
| 845 | write_nomemb_new: |
| 846 | str r3, [fp, #24] |
| 847 | str lr, [fp, #28] |
| 848 | bl do_invalidate |
| 849 | ldr r2, [fp, #address-dynarec_local] |
| 850 | add r12, fp, #memory_map-dynarec_local |
| 851 | ldr lr, [fp, #28] |
| 852 | lsr r0, r2, #12 |
| 853 | ldr r3, [fp, #24] |
| 854 | ldr r12, [r12, r0, lsl #2] |
| 855 | mov r1, #0xc |
| 856 | tst r12, #0x40000000 |
| 857 | bne tlb_exception |
| 858 | eor r2, r2, #3 |
| 859 | ldrb r0, [fp, #byte-dynarec_local] |
| 860 | strb r0, [r2, r12, lsl #2] |
| 861 | mov pc, lr |
| 862 | .size write_nomemb_new, .-write_nomemb_new |
| 863 | |
| 864 | .align 2 |
| 865 | .global write_nomemh_new |
| 866 | .type write_nomemh_new, %function |
| 867 | write_nomemh_new: |
| 868 | str r3, [fp, #24] |
| 869 | str lr, [fp, #28] |
| 870 | bl do_invalidate |
| 871 | ldr r2, [fp, #address-dynarec_local] |
| 872 | add r12, fp, #memory_map-dynarec_local |
| 873 | ldr lr, [fp, #28] |
| 874 | lsr r0, r2, #12 |
| 875 | ldr r3, [fp, #24] |
| 876 | ldr r12, [r12, r0, lsl #2] |
| 877 | mov r1, #0xc |
| 878 | lsls r12, #2 |
| 879 | bcs tlb_exception |
| 880 | eor r2, r2, #2 |
| 881 | ldrh r0, [fp, #hword-dynarec_local] |
| 882 | strh r0, [r2, r12] |
| 883 | mov pc, lr |
| 884 | .size write_nomemh_new, .-write_nomemh_new |
| 885 | */ |
| 886 | .align 2 |
| 887 | .global breakpoint |
| 888 | .type breakpoint, %function |
| 889 | breakpoint: |
| 890 | /* Set breakpoint here for debugging */ |
| 891 | mov pc, lr |
| 892 | .size breakpoint, .-breakpoint |
| 893 | .section .note.GNU-stack,"",%progbits |