src/vm/jit/powerpc/asmpart.S

   1 #include "offsets.h"
   2
   3 .text
   4         .align 2
   5
   6         .globl _builtin_throw_exception
   7         .globl _jit_compile
   8         .globl _builtin_canstore
   9         .globl _builtin_trace_exception
  10         .globl _builtin_monitorenter
  11         .globl _builtin_monitorexit
  12         .globl _builtin_ldiv
  13         .globl _builtin_lrem
  14         .globl _builtin_checkarraycast
  15         .globl _proto_java_lang_NullPointerException
  16         .globl _proto_java_lang_ArrayIndexOutOfBoundsException
  17         .globl _proto_java_lang_ArrayStoreException
  18         .globl _proto_java_lang_ArithmeticException
  19         .globl _proto_java_lang_ClassCastException
  20
  21         .globl _catch_Handler
  22
  23 #define     MethodPointer   -8
  24 #define     FrameSize       -12
  25 #define     IsSync          -16
  26 #define     IsLeaf          -20
  27 #define     IntSave         -24
  28 #define     FltSave         -28
  29 #define     ExTableSize     -32
  30 #define     ExTableStart    -32
  31
  32 #define     ExEntrySize     -16
  33 #define     ExStartPC       -4
  34 #define     ExEndPC         -8
  35 #define     ExHandlerPC     -12
  36 #define     ExCatchType     -16
  37
  38 #define itmp1 r11
  39 #define itmp2 r12
  40 #define itmp3 r0
  41
  42 #define xptr itmp1
  43 #define xpc itmp2
  44
  45 #define pv r13
  46 #define mptr r12
  47 #define mptrn 12
  48
  49         .align 2
  50 builtinthrow:
  51         .long _builtin_throw_exception
  52
  53         .align 2
  54     .long   0                         /* catch type all                       */
  55     .long   calljava_xhandler         /* handler pc                           */
  56     .long   calljava_xhandler         /* end pc                               */
  57     .long   _asm_calljavamethod       /* start pc                             */
  58     .long   1                         /* extable size                         */
  59     .long   0                         /* fltsave                              */
  60     .long   0                         /* intsave                              */
  61     .long   0                         /* isleaf                               */
  62     .long   0                         /* IsSync                               */
  63     .long   24                        /* frame size                           */
  64     .long   0                         /* method pointer (pointer to name)     */
  65         .long   0                         /* padding                              */
  66
  67
  68 .globl _asm_docalljavamethod
  69 _asm_docalljavamethod:
  70         mflr r0
  71         stw r31,-4(r1)
  72 //      stw r30,-8(r1)
  73         stw pv,-12(r1)
  74         stw r0,8(r1)
  75         stwu r1,-148(r1)
  76         bl 0f
  77 0:
  78         mflr r31
  79
  80         stw r16,40(r1)
  81         stw r17,44(r1)
  82         stw r18,48(r1)
  83         stw r19,52(r1)
  84         stw r20,56(r1)
  85         stw r21,60(r1)
  86         stw r22,64(r1)
  87         stw r23,68(r1)
  88         stfd f16,72(r1)
  89         stfd f17,80(r1)
  90         stfd f18,88(r1)
  91         stfd f19,96(r1)
  92         stfd f20,104(r1)
  93         stfd f21,112(r1)
  94         stfd f22,120(r1)
  95         stfd f23,128(r1)
  96
  97         stw r3,36(r1)
  98         addi r2,r1,36
  99         mr r3,r4
 100         mr r4,r5
 101         mr r5,r6
 102         mr r6,r7
 103
 104 //      addis mptr,r31,ha16(_asm_call_jit_compiler-0b)
 105         addi mptr,r31,lo16(_asm_call_jit_compiler-0b)
 106         stw mptr,32(r1)
 107         addi mptr,r1,28
 108
 109         lwz pv,4(mptr)
 110         mtctr pv
 111         bctrl
 112 1:
 113         mflr itmp1
 114         addi pv,itmp1,lo16(_asm_docalljavamethod-1b)
 115
 116 calljava_regrestore:
 117         lwz r16,40(r1)
 118         lwz r17,44(r1)
 119         lwz r18,48(r1)
 120         lwz r19,52(r1)
 121         lwz r20,56(r1)
 122         lwz r21,60(r1)
 123         lwz r22,64(r1)
 124         lwz r23,68(r1)
 125         lfd f16,72(r1)
 126         lfd f17,80(r1)
 127         lfd f18,88(r1)
 128         lfd f19,96(r1)
 129         lfd f20,104(r1)
 130         lfd f21,112(r1)
 131         lfd f22,120(r1)
 132         lfd f23,128(r1)
 133
 134         lwz r0,148+8(r1)
 135         mtlr r0
 136         addi r1,r1,148
 137         lwz pv,-12(r1)
 138 //      lwz r30,-8(r1)
 139         lwz r31,-4(r1)
 140         blr
 141 calljava_xhandler:
 142         mr r3,itmp1
 143 //      addis pv,r31,ha16(builtinthrow-0b)
 144         lwz itmp1,lo16(builtinthrow-0b)(r31)
 145         mtctr itmp1
 146         bctrl
 147         b calljava_regrestore
 148
 149
 150
 151
 152 jitcompile:
 153         .long _jit_compile
 154
 155 .globl _asm_call_jit_compiler
 156 _asm_call_jit_compiler:
 157 0:
 158         mflr itmp1
 159         stw r31,-4(r1)
 160 //      stw pv,-8(r1)
 161         stw r29,-12(r1)
 162         stw itmp1,8(r1)
 163         stwu r1,-176(r1)
 164         mr r31,pv
 165
 166         lwz itmp3,-12(itmp1)
 167         srwi itmp3,itmp3,16
 168         andi. itmp3,itmp3,31
 169         cmpwi itmp3,mptrn
 170         beq noregchange
 171         lwz itmp3,4(itmp1)
 172         extsh itmp3,itmp3
 173         add mptr,itmp3,itmp1
 174         lwz itmp3,8(itmp1)
 175         srwi itmp3,itmp3,16
 176         cmpwi itmp3,0x3dad
 177         bne noregchange
 178         lwz itmp3,8(itmp1)
 179         slwi itmp3,itmp3,16
 180         add mptr,mptr,itmp3
 181 noregchange:
 182         mr r29,mptr
 183         stw r3,28(r1)
 184         stw r4,32(r1)
 185         stw r5,36(r1)
 186         stw r6,40(r1)
 187         stw r7,44(r1)
 188         stw r8,48(r1)
 189         stw r9,52(r1)
 190         stfd f1,56(r1)
 191         stfd f2,64(r1)
 192         stfd f3,72(r1)
 193         stfd f4,80(r1)
 194         stfd f5,88(r1)
 195         stfd f6,96(r1)
 196         stfd f7,104(r1)
 197         stfd f8,112(r1)
 198         stfd f9,120(r1)
 199         stfd f10,128(r1)
 200         stfd f11,136(r1)
 201         stfd f12,144(r1)
 202         stfd f13,152(r1)
 203         stw r10,160(r1)
 204
 205         lwz r3,0(r2)
 206 //      addis pv,r31,ha16(jitcompile-0b)
 207         lwz itmp1,lo16(jitcompile-0b)(r31)
 208         mtctr itmp1
 209         bctrl
 210
 211         mr pv,r3
 212         mr mptr,r29
 213         lwz r3,28(r1)
 214         lwz r4,32(r1)
 215         lwz r5,36(r1)
 216         lwz r6,40(r1)
 217         lwz r7,44(r1)
 218         lwz r8,48(r1)
 219         lwz r9,52(r1)
 220         lfd f1,56(r1)
 221         lfd f2,64(r1)
 222         lfd f3,72(r1)
 223         lfd f4,80(r1)
 224         lfd f5,88(r1)
 225         lfd f6,96(r1)
 226         lfd f7,104(r1)
 227         lfd f8,112(r1)
 228         lfd f9,120(r1)
 229         lfd f10,128(r1)
 230         lfd f11,136(r1)
 231         lfd f12,144(r1)
 232         lfd f13,152(r1)
 233         lwz r10,160(r1)
 234
 235         lwz itmp1,176+8(r1)
 236         lwz itmp3,-12(itmp1)
 237         extsh itmp3,itmp3
 238         add mptr,mptr,itmp3
 239         stw pv,0(mptr)
 240
 241         mtctr pv
 242
 243         lwz r0,176+8(r1)
 244         mtlr r0
 245         addi r1,r1,176
 246         lwz r29,-12(r1)
 247 //      lwz pv,-8(r1)
 248         lwz r31,-4(r1)
 249         bctr
 250
 251
 252 builtin_traceexception:
 253         .long _builtin_trace_exception
 254 builtin_monitorenter:
 255         .long _builtin_monitorenter
 256 builtin_monitorexit:
 257         .long _builtin_monitorexit
 258 builtin_ldiv:
 259         .long _builtin_ldiv
 260 builtin_lrem:
 261         .long _builtin_lrem
 262
 263 .globl _asm_handle_nat_exception
 264 _asm_handle_nat_exception:
 265         mflr r2
 266         lwz itmp3,4(r2)
 267         extsh itmp3,itmp3
 268         add pv,itmp3,r2
 269         lwz itmp3,8(r2)
 270         srwi itmp3,itmp3,16
 271         cmpwi itmp3,0x3dad
 272         bne _asm_handle_exception
 273         lwz itmp3,8(r2)
 274         slwi itmp3,itmp3,16
 275         add pv,pv,itmp3
 276
 277         .globl _asm_handle_exception
 278 _asm_handle_exception:
 279         addi r1,r1,-18*4
 280         stw r0,0*4(r1)
 281         stw r2,1*4(r1)
 282         stw r3,2*4(r1)
 283         stw r4,3*4(r1)
 284         stw r5,4*4(r1)
 285         stw r6,5*4(r1)
 286         stw r7,6*4(r1)
 287         stw r8,7*4(r1)
 288         stw r9,8*4(r1)
 289         stw r10,9*4(r1)
 290         stw r16,10*4(r1)
 291         stw r17,11*4(r1)
 292         stw r18,12*4(r1)
 293         stw r19,13*4(r1)
 294         stw r20,14*4(r1)
 295         stw r21,15*4(r1)
 296         stw r22,16*4(r1)
 297         stw r23,17*4(r1)
 298
 299         li r2,1
 300 ex_stack_loop:
 301         addi r1,r1,-4*4
 302         stw xptr,0*4(r1)
 303         stw xpc,1*4(r1)
 304         mflr xptr
 305         stw xptr,2*4(r1)
 306         stw r2,3*4(r1)
 307
 308         lwz r3,0*4(r1)
 309         lwz r4,MethodPointer(pv)
 310         mr r5,xpc
 311         mr r6,r2
 312
 313         bl 0f
 314 0:
 315         mflr itmp1
 316         lwz itmp1,lo16(builtin_traceexception-0b)(itmp1)
 317         mtctr itmp1
 318         addi r1,r1,-40
 319         bctrl
 320         addi r1,r1,40
 321
 322         lwz xptr,2*4(r1)
 323         mtlr xptr
 324         lwz xptr,0*4(r1)
 325         lwz xpc,1*4(r1)
 326         lwz r2,3*4(r1)
 327         addi r1,r1,4*4
 328
 329         lwz r3,ExTableSize(pv)
 330         mr. r3,r3
 331         beq empty_table
 332         addi r4,pv,ExTableStart
 333
 334 ex_table_loop:
 335         lwz r5,ExStartPC(r4)
 336         cmplw r5,xpc
 337         bgt ex_table_cont
 338         lwz r5,ExEndPC(r4)
 339         cmplw xpc,r5
 340         bge ex_table_cont
 341         lwz r7,ExCatchType(r4)
 342         mr. r7,r7
 343         beq ex_handle_it
 344
 345         lwz r6,offobjvftbl(xptr)
 346         lwz r7,offobjvftbl(r7)
 347         lwz r6,offbaseval(r6)
 348         lwz r8,offbaseval(r7)
 349         lwz r7,offdiffval(r7)
 350         subf r6,r8,r6
 351         cmplw r6,r7
 352         bgt ex_table_cont
 353
 354 ex_handle_it:
 355         lwz xpc,ExHandlerPC(r4)
 356         mr. r2,r2
 357         beq ex_jump
 358
 359         lwz r0,0*4(r1)
 360         lwz r2,1*4(r1)
 361         lwz r3,2*4(r1)
 362         lwz r4,3*4(r1)
 363         lwz r5,4*4(r1)
 364         lwz r6,5*4(r1)
 365         lwz r7,6*4(r1)
 366         lwz r8,7*4(r1)
 367         lwz r9,8*4(r1)
 368         lwz r10,9*4(r1)
 369         lwz r16,10*4(r1)
 370         lwz r17,11*4(r1)
 371         lwz r18,12*4(r1)
 372         lwz r19,13*4(r1)
 373         lwz r20,14*4(r1)
 374         lwz r21,15*4(r1)
 375         lwz r22,16*4(r1)
 376         lwz r23,17*4(r1)
 377         addi r1,r1,18*4
 378
 379 ex_jump:
 380         mtctr xpc
 381         bctr
 382
 383 ex_table_cont:
 384         addi r4,r4,ExEntrySize
 385         addic. r3,r3,-1
 386         bgt ex_table_loop
 387
 388 empty_table:
 389         mr. r2,r2
 390         beq ex_already_cleared
 391         addi r1,r1,18*4
 392         li r2,0
 393 ex_already_cleared:
 394         lwz r3,IsSync(pv)
 395         mr. r3,r3
 396         beq no_monitor_exit
 397         add r3,r1,r3
 398         lwz r6,-4(r3)
 399
 400         addi r1,r1,-6*4
 401         stw r3,0*4(r1)
 402         stw r4,1*4(r1)
 403         stw r2,2*4(r1)
 404         stw xptr,3*4(r1)
 405         stw xpc,4*4(r1)
 406         mflr xptr
 407         stw xptr,5*4(r1)
 408
 409         mr r3,r6
 410         bl 0f
 411 0:
 412         mflr itmp1
 413         lwz itmp1,lo16(builtin_monitorexit-0b)(itmp1)
 414         mtctr itmp1
 415         addi r1,r1,-40
 416         bctrl
 417         addi r1,r1,40
 418
 419         lwz xptr,5*4(r1)
 420         mtlr xptr
 421         lwz r3,0*4(r1)
 422         lwz r4,1*4(r1)
 423         lwz r2,2*4(r1)
 424         lwz xptr,3*4(r1)
 425         lwz xpc,4*4(r1)
 426         addi r1,r1,6*4
 427
 428 no_monitor_exit:
 429         lwz r3,FrameSize(pv)
 430         add r1,r1,r3
 431         mr r3,r1
 432         lwz r4,IsLeaf(pv)
 433         mr. r4,r4
 434         bne ex_no_restore
 435         lwz r4,8(r3)
 436         mtlr r4
 437 ex_no_restore:
 438         mflr r4
 439         mr xpc,r4
 440         lwz r4,IntSave(pv)
 441         bl ex_int1
 442 ex_int1:
 443         mflr r5
 444         addi r5,r5,lo16(ex_int2-ex_int1)
 445         slwi r4,r4,2
 446         subf r5,r4,r5
 447         mtctr r5
 448         bctr
 449         lwz r14,-40(r3)
 450         lwz r15,-36(r3)
 451         lwz r24,-32(r3)
 452         lwz r25,-28(r3)
 453         lwz r26,-24(r3)
 454         lwz r27,-20(r3)
 455         lwz r28,-16(r3)
 456         lwz r29,-12(r3)
 457         lwz r30,-8(r3)
 458         lwz r31,-4(r3)
 459 ex_int2:
 460         subf r3,r4,r3
 461
 462         lwz r4,FltSave(pv)
 463         bl ex_flt1
 464 ex_flt1:
 465         mflr r5
 466         addi r5,r5,lo16(ex_flt2-ex_flt1)
 467         slwi r4,r4,2
 468         subf r5,r4,r5
 469         mtctr r5
 470         bctr
 471         lfd f14,-80(r3)
 472         lfd f15,-72(r3)
 473         lfd f24,-64(r3)
 474         lfd f25,-56(r3)
 475         lfd f26,-48(r3)
 476         lfd f27,-40(r3)
 477         lfd f28,-32(r3)
 478         lfd f29,-24(r3)
 479         lfd f30,-16(r3)
 480         lfd f31,-8(r3)
 481 ex_flt2:
 482         mtlr xpc
 483         lwz itmp3,4(xpc)
 484         extsh itmp3,itmp3
 485         add pv,itmp3,xpc
 486         lwz itmp3,8(xpc)
 487         srwi itmp3,itmp3,16
 488         cmpwi itmp3,0x3dad
 489         bne ex_stack_loop
 490         lwz itmp3,8(xpc)
 491         slwi itmp3,itmp3,16
 492         add pv,pv,itmp3
 493         b ex_stack_loop
 494
 495
 496
 497
 498
 499
 500
 501 .globl _asm_builtin_checkarraycast
 502 _asm_builtin_checkarraycast:
 503 0:
 504         mflr r0
 505         stw r0,8(r1)
 506         stwu r1,-48(r1)
 507
 508         stw r3,32(r1)
 509         lwz itmp1,lo16(builtincheckarraycast-0b)(pv)
 510         mtctr itmp1
 511         bctrl
 512
 513         lwz r0,48+8(r1)
 514         mtlr r0
 515         mr. r3,r3
 516         beq nb_carray_throw
 517         lwz r3,32(r1)
 518         addi r1,r1,48
 519         blr
 520
 521 nb_carray_throw:
 522         lwz xptr,lo16(proto_java_lang_ClassCastException-0b)(pv)
 523         lwz xptr,0(xptr)
 524         addi r1,r1,48
 525         mflr xpc
 526         b _asm_handle_nat_exception
 527
 528 .globl _asm_builtin_checkcast
 529 _asm_builtin_checkcast:
 530 0:
 531         lwz xptr,lo16(proto_java_lang_NullPointerException-0b)(pv)
 532         lwz xptr,0(xptr)
 533         mflr xpc
 534         b _asm_handle_nat_exception
 535
 536
 537
 538
 539
 540
 541
 542 builtincanstore:
 543         .long _builtin_canstore
 544 builtincheckarraycast:
 545         .long _builtin_checkarraycast
 546
 547 .globl _asm_builtin_aastore
 548 _asm_builtin_aastore:
 549 0:
 550         mr. r3,r3
 551         beq nb_aastore_null
 552         mflr r0
 553         stw r0,8(r1)
 554         stwu r1,-48(r1)
 555
 556         lwz itmp1,offarraysize(r3)
 557         slwi itmp3,r4,2
 558         add itmp2,r3,itmp3
 559         cmplw r4,itmp1
 560         bge nb_aastore_bound
 561         mr r4,r5
 562         stw itmp2,32(r1)
 563         stw r4,36(r1)
 564 //      addis pv,r31,ha16(builtincanstore-0b)
 565         lwz itmp1,lo16(builtincanstore-0b)(pv)
 566         mtctr itmp1
 567         bctrl
 568
 569         lwz r0,48+8(r1)
 570         mtlr r0
 571         lwz itmp1,32(r1)
 572         lwz itmp2,36(r1)
 573         addi r1,r1,48
 574         mr. r3,r3
 575         beq nb_aastore_throw
 576         stw itmp2,offobjarrdata(itmp1)
 577         blr
 578
 579 proto_java_lang_NullPointerException:
 580         .long _proto_java_lang_NullPointerException
 581 proto_java_lang_ArrayIndexOutOfBoundsException:
 582         .long _proto_java_lang_ArrayIndexOutOfBoundsException
 583 proto_java_lang_ArrayStoreException:
 584         .long _proto_java_lang_ArrayStoreException
 585 proto_java_lang_ArithmeticException:
 586         .long _proto_java_lang_ArithmeticException
 587 proto_java_lang_ClassCastException:
 588         .long _proto_java_lang_ClassCastException
 589
 590 nb_aastore_null:
 591         lwz xptr,lo16(proto_java_lang_NullPointerException-0b)(pv)
 592         lwz xptr,0(xptr)
 593         mflr xpc
 594         b _asm_handle_nat_exception
 595 nb_aastore_bound:
 596         lwz xptr,lo16(proto_java_lang_ArrayIndexOutOfBoundsException-0b)(pv)
 597         lwz xptr,0(xptr)
 598         addi r1,r1,48
 599         mflr xpc
 600         b _asm_handle_nat_exception
 601 nb_aastore_throw:
 602         lwz xptr,lo16(proto_java_lang_ArrayStoreException-0b)(pv)
 603         lwz xptr,0(xptr)
 604         mflr xpc
 605         b _asm_handle_nat_exception
 606
 607
 608
 609 .globl _asm_dumpregistersandcall
 610 _asm_dumpregistersandcall:
 611         mflr r0
 612         stw r0,8(r1)
 613
 614         stw r16,-72(r1)
 615         stw r17,-68(r1)
 616         stw r18,-64(r1)
 617         stw r19,-60(r1)
 618         stw r20,-56(r1)
 619         stw r21,-52(r1)
 620         stw r22,-48(r1)
 621         stw r23,-44(r1)
 622
 623         stw r14,-40(r1)
 624         stw r15,-36(r1)
 625         stw r24,-32(r1)
 626         stw r25,-28(r1)
 627         stw r26,-24(r1)
 628         stw r27,-20(r1)
 629         stw r28,-16(r1)
 630         stw r29,-12(r1)
 631         stw r30,-8(r1)
 632         stw r31,-4(r1)
 633         addi r1,r1,-96
 634
 635         mtctr r3
 636         bctrl
 637
 638         lwz r0,96+8(r1)
 639         mtlr r0
 640         addi r1,r1,96
 641         blr
 642
 643
 644
 645 .globl _asm_builtin_monitorenter
 646 _asm_builtin_monitorenter:
 647 0:
 648         lwz itmp2,lo16(builtin_monitorenter-0b)(pv)
 649         mr. r3,r3
 650         beq nb_monitorenter
 651         mtctr itmp2
 652         bctr
 653 nb_monitorenter:
 654         mflr r2
 655         lwz xptr,lo16(proto_java_lang_NullPointerException-0b)(pv)
 656         lwz xptr,0(xptr)
 657         addi xpc,r2,-4
 658         b _asm_handle_nat_exception
 659
 660 .globl _asm_builtin_monitorexit
 661 _asm_builtin_monitorexit:
 662 0:
 663         lwz itmp2,lo16(builtin_monitorexit-0b)(pv)
 664         mr. r3,r3
 665         beq nb_monitorexit
 666         mtctr itmp2
 667         bctr
 668 nb_monitorexit:
 669         mflr r2
 670         lwz xptr,lo16(proto_java_lang_NullPointerException-0b)(pv)
 671         lwz xptr,0(xptr)
 672         addi xpc,r2,-4
 673         b _asm_handle_nat_exception
 674
 675
 676
 677
 678
 679 .globl _synchronize_caches
 680 _synchronize_caches:
 681         blr
 682 .globl _asm_getcallingmethod
 683 _asm_getcallingmethod:
 684         li r3,0
 685         blr
 686
 687 .globl _asm_builtin_ldiv
 688 _asm_builtin_ldiv:
 689 0:
 690         or. r0,r5,r6
 691         beq nb_ldiv
 692         lwz itmp1,lo16(builtin_ldiv-0b)(pv)
 693         mtctr itmp1
 694         bctr
 695 nb_ldiv:
 696         lwz xptr,lo16(proto_java_lang_ArithmeticException-0b)(pv)
 697         lwz xptr,0(xptr)
 698         mflr xpc
 699         b _asm_handle_nat_exception
 700
 701 .globl _asm_builtin_lrem
 702 _asm_builtin_lrem:
 703 0:
 704         or. r0,r5,r6
 705         beq nb_lrem
 706         lwz itmp1,lo16(builtin_lrem-0b)(pv)
 707         mtctr itmp1
 708         bctr
 709 nb_lrem:
 710         lwz xptr,lo16(proto_java_lang_ArithmeticException-0b)(pv)
 711         lwz xptr,0(xptr)
 712         mflr xpc
 713         b _asm_handle_nat_exception
 714
 715 .globl _asm_builtin_idiv
 716 _asm_builtin_idiv:
 717 0:
 718         mr. r4,r4
 719         beq nb_idiv
 720         divw r3,r3,r4
 721         blr
 722 nb_idiv:
 723         lwz xptr,lo16(proto_java_lang_ArithmeticException-0b)(pv)
 724         lwz xptr,0(xptr)
 725         mflr xpc
 726         b _asm_handle_nat_exception
 727
 728 .globl _asm_builtin_irem
 729 _asm_builtin_irem:
 730 0:
 731         mr. r4,r4
 732         beq nb_irem
 733         divw itmp3,r3,r4
 734         mullw itmp3,itmp3,r4
 735         subf r3,itmp3,r3
 736         blr
 737 nb_irem:
 738         lwz xptr,lo16(proto_java_lang_ArithmeticException-0b)(pv)
 739         lwz xptr,0(xptr)
 740         mflr xpc
 741         b _asm_handle_nat_exception
 742
 743
 744
 745
 746 .globl _has_no_x_instr_set
 747 _has_no_x_instr_set:
 748         li r3,0
 749         blr
 750
 751
 752         .globl _asm_cacheflush
 753 _asm_cacheflush:
 754         addi r4,r4,31
 755         mr r5,r3
 756         add r4,r3,r4
 757 1:
 758         cmplw r3,r4
 759         bge 0f
 760         dcbst 0,r3
 761         addi r3,r3,32
 762         b 1b
 763 0:
 764         sync
 765 1:
 766         cmplw r5,r4
 767         bge 0f
 768         icbi 0,r5
 769         addi r5,r5,32
 770         b 1b
 771 0:
 772         sync
 773         isync
 774         blr
 775
 776         .align 3
 777 doublezero:
 778         .double 0.0
 779
 780 .globl _asm_initialize_thread_stack
 781 _asm_initialize_thread_stack:
 782         addi r4,r4,-256
 783         stw r3,120(r4)
 784         li r3,0
 785         stw r3,124(r4)
 786         stw r3,0(r4)
 787         stw r3,4(r4)
 788         stw r3,8(r4)
 789         stw r3,12(r4)
 790         stw r3,16(r4)
 791         stw r3,20(r4)
 792         stw r3,24(r4)
 793         stw r3,28(r4)
 794         stw r3,32(r4)
 795         stw r3,36(r4)
 796
 797         stw r3,128(r4)
 798         stw r3,132(r4)
 799         stw r3,136(r4)
 800         stw r3,140(r4)
 801         stw r3,144(r4)
 802         stw r3,148(r4)
 803         stw r3,152(r4)
 804         stw r3,156(r4)
 805
 806         mflr r0
 807         bl 0f
 808 0:
 809         mflr r3
 810         mtlr r0
 811         lfd f0,lo16(doublezero-0b)(r3)
 812
 813         stfd f0,40(r4)
 814         stfd f0,48(r4)
 815         stfd f0,56(r4)
 816         stfd f0,64(r4)
 817         stfd f0,72(r4)
 818         stfd f0,80(r4)
 819         stfd f0,88(r4)
 820         stfd f0,96(r4)
 821         stfd f0,104(r4)
 822         stfd f0,112(r4)
 823
 824         stfd f0,160(r4)
 825         stfd f0,168(r4)
 826         stfd f0,176(r4)
 827         stfd f0,184(r4)
 828         stfd f0,192(r4)
 829         stfd f0,200(r4)
 830         stfd f0,208(r4)
 831         stfd f0,216(r4)
 832
 833         mr r3,r4
 834         blr
 835
 836 .globl _asm_perform_threadswitch
 837 _asm_perform_threadswitch:
 838         mflr r0
 839         addi r1,r1,-224
 840         stw r0,120(r1)
 841         stw pv,124(r1)
 842         stw r14,0(r1)
 843         stw r15,4(r1)
 844         stw r24,8(r1)
 845         stw r25,12(r1)
 846         stw r26,16(r1)
 847         stw r27,20(r1)
 848         stw r28,24(r1)
 849         stw r29,28(r1)
 850         stw r30,32(r1)
 851         stw r31,36(r1)
 852         stfd f14,40(r1)
 853         stfd f15,48(r1)
 854         stfd f24,56(r1)
 855         stfd f25,64(r1)
 856         stfd f26,72(r1)
 857         stfd f27,80(r1)
 858         stfd f28,88(r1)
 859         stfd f29,96(r1)
 860         stfd f30,104(r1)
 861         stfd f31,112(r1)
 862
 863         stw r16,128(r1)
 864         stw r17,132(r1)
 865         stw r18,136(r1)
 866         stw r19,140(r1)
 867         stw r20,144(r1)
 868         stw r21,148(r1)
 869         stw r22,152(r1)
 870         stw r23,156(r1)
 871         stfd f16,160(r1)
 872         stfd f17,168(r1)
 873         stfd f18,176(r1)
 874         stfd f19,184(r1)
 875         stfd f20,192(r1)
 876         stfd f21,200(r1)
 877         stfd f22,208(r1)
 878         stfd f23,216(r1)
 879
 880         stw r1,0(r3)
 881         stw r1,0(r5)
 882         lwz r1,0(r4)
 883
 884         lwz r0,120(r1)
 885         lwz pv,124(r1)
 886         lwz r14,0(r1)
 887         lwz r15,4(r1)
 888         lwz r24,8(r1)
 889         lwz r25,12(r1)
 890         lwz r26,16(r1)
 891         lwz r27,20(r1)
 892         lwz r28,24(r1)
 893         lwz r29,28(r1)
 894         lwz r30,32(r1)
 895         lwz r31,36(r1)
 896         lfd f14,40(r1)
 897         lfd f15,48(r1)
 898         lfd f24,56(r1)
 899         lfd f25,64(r1)
 900         lfd f26,72(r1)
 901         lfd f27,80(r1)
 902         lfd f28,88(r1)
 903         lfd f29,96(r1)
 904         lfd f30,104(r1)
 905         lfd f31,112(r1)
 906
 907         lwz r16,128(r1)
 908         lwz r17,132(r1)
 909         lwz r18,136(r1)
 910         lwz r19,140(r1)
 911         lwz r20,144(r1)
 912         lwz r21,148(r1)
 913         lwz r22,152(r1)
 914         lwz r23,156(r1)
 915         lfd f16,160(r1)
 916         lfd f17,168(r1)
 917         lfd f18,176(r1)
 918         lfd f19,184(r1)
 919         lfd f20,192(r1)
 920         lfd f21,200(r1)
 921         lfd f22,208(r1)
 922         lfd f23,216(r1)
 923
 924         mtlr r0
 925         addi r1,r1,224
 926         blr
 927
 928
 929
 930 .globl _asm_switchstackandcall
 931 _asm_switchstackandcall:
 932         mflr r0
 933         addi r3,r3,-48
 934         stw r0,40(r3)
 935         stw r1,44(r3)
 936         stw r1,0(r5)
 937         mr r1,r3
 938
 939         mtctr r4
 940         mr r3,r6
 941         bctrl
 942
 943         lwz r0,40(r1)
 944         mtlr r0
 945         lwz r1,44(r1)
 946         blr
 947
 948
 949
 950         .globl _my_dump
 951 _my_dump:
 952         mflr r0
 953         bl 0f
 954 0:
 955         mflr itmp1
 956         mtlr r0
 957         lwz xptr,lo16(proto_java_lang_NullPointerException-0b)(itmp1)
 958         lwz xptr,0(xptr)
 959         b _asm_handle_exception
 960
 961
 962
 963
 964
 965 #define C_RED_ZONE 224
 966
 967 catch_Handler:
 968         .long _catch_Handler
 969
 970         .globl _asm_sighandler
 971 _asm_sighandler:
 972         addi r1,r1,-32*4 - 32 - C_RED_ZONE
 973         stmw r0,32(r1)
 974         mflr r0
 975         stw r0,28(r1)
 976
 977         bl 0f
 978 0:
 979         mflr r31
 980         lwz r0,lo16(catch_Handler-0b)(r31)
 981         mtctr r0
 982         addi r3,r1,32
 983         bctrl
 984
 985         lwz r0,28(r1)
 986         mtlr r0
 987         cmpwi r3,0
 988         bne 1f
 989         lmw r2,32+8(r1)
 990         lwz r0,32(r1)
 991         addi r1,r1,32*4 + 32 + C_RED_ZONE
 992         b _asm_handle_exception
 993
 994 1:
 995         mtctr r3
 996         lmw r2,32+8(r1)
 997         lwz r0,32(r1)
 998         addi r1,r1,32*4 + 32 + C_RED_ZONE
 999         bctr