1 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
2 * Mupen64plus - linkage_arm.s *
3 * Copyright (C) 2009-2010 Ari64 *
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. *
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. *
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 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
44 .global pending_exception
58 .global restore_candidate
65 .type dynarec_local, %object
66 .size dynarec_local, dynarec_local_end-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
75 last_count = cycle_count + 4
76 .type last_count, %object
78 pending_exception = last_count + 4
79 .type pending_exception, %object
80 .size pending_exception, 4
81 stop = pending_exception + 4
85 .type invc_ptr, %object
87 address = invc_ptr + 4
88 .type address, %object
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
105 .size byte, 1 /* 1 byte free */
118 .size psxRegs, psxRegs_end-psxRegs
126 .type reg_cop0, %object
128 reg_cop2d = reg_cop0 + 128
129 .type reg_cop2d, %object
131 reg_cop2c = reg_cop2d + 128
132 .type reg_cop2c, %object
144 interrupt = cycle + 4
145 .type interrupt, %object
147 intCycle = interrupt + 4
148 .type intCycle, %object
150 psxRegs_end = intCycle + 128
152 align0 = psxRegs_end /* just for alignment */
153 .type align0, %object
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
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
172 .type dyna_linker, %function
174 /* r0 = virtual target address */
175 /* r1 = instruction to patch */
182 eor r2, r2, r12, lsr #12
183 and r6, r6, r12, lsr #12
187 ldr r5, [r3, r2, lsl #2]
203 add r1, r1, r12, asr #6
205 moveq pc, r4 /* Stale i-cache */
208 and r1, r7, #0xff000000
211 add r1, r1, r2, lsr #8
215 /* hash_table lookup */
218 eor r4, r0, r0, lsl #16
224 ldr r5, [r3, r2, lsl #2]
231 /* jump_dirty lookup */
241 /* hash_table insert */
252 bl new_recompile_block
260 .size dyna_linker, .-dyna_linker
261 .global exec_pagefault
262 .type exec_pagefault, %function
264 /* r0 = instruction pointer */
265 /* r1 = fault address */
267 ldr r3, [fp, #reg_cop0+48-dynarec_local] /* Status */
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 */
273 str r1, [fp, #reg_cop0+32-dynarec_local] /* BadVAddr */
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 */
281 str r4, [fp, #reg_cop0+16-dynarec_local] /* Context */
285 .size exec_pagefault, .-exec_pagefault
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
292 /* r0 = virtual target address */
293 /* r1 = instruction to patch */
300 eor r2, r2, r12, lsr #12
301 and r6, r6, r12, lsr #12
305 ldr r5, [r3, r2, lsl #2]
321 add r1, r1, r12, asr #6
323 moveq pc, r4 /* Stale i-cache */
326 and r1, r7, #0xff000000
329 add r1, r1, r2, lsr #8
333 /* hash_table lookup */
336 eor r4, r0, r0, lsl #16
342 ldr r5, [r3, r2, lsl #2]
349 /* jump_dirty lookup */
359 /* hash_table insert */
372 bl new_recompile_block
379 mov r2, #0x80000008 /* High bit set indicates pagefault in delay slot */
382 .size dyna_linker_ds, .-dyna_linker_ds
391 .global jump_vaddr_r0
392 .type jump_vaddr_r0, %function
394 eor r2, r0, r0, lsl #16
396 .size jump_vaddr_r0, .-jump_vaddr_r0
397 .global jump_vaddr_r1
398 .type jump_vaddr_r1, %function
400 eor r2, r1, r1, lsl #16
403 .size jump_vaddr_r1, .-jump_vaddr_r1
404 .global jump_vaddr_r2
405 .type jump_vaddr_r2, %function
408 eor r2, r2, r2, lsl #16
410 .size jump_vaddr_r2, .-jump_vaddr_r2
411 .global jump_vaddr_r3
412 .type jump_vaddr_r3, %function
414 eor r2, r3, r3, lsl #16
417 .size jump_vaddr_r3, .-jump_vaddr_r3
418 .global jump_vaddr_r4
419 .type jump_vaddr_r4, %function
421 eor r2, r4, r4, lsl #16
424 .size jump_vaddr_r4, .-jump_vaddr_r4
425 .global jump_vaddr_r5
426 .type jump_vaddr_r5, %function
428 eor r2, r5, r5, lsl #16
431 .size jump_vaddr_r5, .-jump_vaddr_r5
432 .global jump_vaddr_r6
433 .type jump_vaddr_r6, %function
435 eor r2, r6, r6, lsl #16
438 .size jump_vaddr_r6, .-jump_vaddr_r6
439 .global jump_vaddr_r8
440 .type jump_vaddr_r8, %function
442 eor r2, r8, r8, lsl #16
445 .size jump_vaddr_r8, .-jump_vaddr_r8
446 .global jump_vaddr_r9
447 .type jump_vaddr_r9, %function
449 eor r2, r9, r9, lsl #16
452 .size jump_vaddr_r9, .-jump_vaddr_r9
453 .global jump_vaddr_r10
454 .type jump_vaddr_r10, %function
456 eor r2, r10, r10, lsl #16
459 .size jump_vaddr_r10, .-jump_vaddr_r10
460 .global jump_vaddr_r12
461 .type jump_vaddr_r12, %function
463 eor r2, r12, r12, lsl #16
466 .size jump_vaddr_r12, .-jump_vaddr_r12
467 .global jump_vaddr_r7
468 .type jump_vaddr_r7, %function
470 eor r2, r7, r7, lsl #16
472 .size jump_vaddr_r7, .-jump_vaddr_r7
474 .type jump_vaddr, %function
478 and r2, r3, r2, lsr #12
485 str r10, [fp, #cycle_count-dynarec_local]
487 ldr r10, [fp, #cycle_count-dynarec_local]
489 .size jump_vaddr, .-jump_vaddr
492 .global verify_code_ds
493 .type verify_code_ds, %function
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
501 .type verify_code, %function
530 ldr r8, [fp, #branch_target-dynarec_local]
535 .size verify_code, .-verify_code
536 .size verify_code_vm, .-verify_code_vm
540 .type cc_interrupt, %function
542 ldr r0, [fp, #last_count-dynarec_local]
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 */
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]
565 ldmnefd sp!, {r4, r5, r6, r7, r8, r9, sl, fp, ip, pc}
569 ldr r0, [fp, #pcaddr-dynarec_local]
573 /* Move 'dirty' blocks to the 'clean' list */
584 .size cc_interrupt, .-cc_interrupt
588 .type do_interrupt, %function
590 /* FIXME: cycles already calculated, not needed? */
591 ldr r0, [fp, #pcaddr-dynarec_local]
593 ldr r1, [fp, #next_interupt-dynarec_local]
594 ldr r10, [fp, #cycle-dynarec_local]
595 str r1, [fp, #last_count-dynarec_local]
599 .size do_interrupt, .-do_interrupt
602 .type fp_exception, %function
606 ldr r1, [fp, #reg_cop0+48-dynarec_local] /* Status */
608 str r0, [fp, #reg_cop0+56-dynarec_local] /* EPC */
611 str r1, [fp, #reg_cop0+48-dynarec_local] /* Status */
612 str r2, [fp, #reg_cop0+52-dynarec_local] /* Cause */
616 .size fp_exception, .-fp_exception
618 .global fp_exception_ds
619 .type fp_exception_ds, %function
621 mov r2, #0x90000000 /* Set high bit if delay slot */
623 .size fp_exception_ds, .-fp_exception_ds
627 .type jump_syscall, %function
629 ldr r1, [fp, #reg_cop0+48-dynarec_local] /* Status */
631 str r0, [fp, #reg_cop0+56-dynarec_local] /* EPC */
634 str r1, [fp, #reg_cop0+48-dynarec_local] /* Status */
635 str r2, [fp, #reg_cop0+52-dynarec_local] /* Cause */
639 .size jump_syscall, .-jump_syscall
643 .global jump_syscall_hle
644 .type jump_syscall_hle, %function
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 */
650 mov r0, #0x20 /* cause */
651 str r2, [fp, #cycle-dynarec_local] /* PCSX cycle counter */
654 /* note: psxException might do recorsive recompiler call from it's HLE code,
655 * so be ready for this */
657 ldr r1, [fp, #next_interupt-dynarec_local]
658 ldr r10, [fp, #cycle-dynarec_local]
659 ldr r0, [fp, #pcaddr-dynarec_local]
661 str r1, [fp, #last_count-dynarec_local]
664 .size jump_syscall_hle, .-jump_syscall_hle
668 .type jump_hlecall, %function
670 ldr r2, [fp, #last_count-dynarec_local]
671 str r0, [fp, #pcaddr-dynarec_local]
673 str r2, [fp, #cycle-dynarec_local] /* PCSX cycle counter */
676 .size jump_hlecall, .-jump_hlecall
680 .global new_dyna_leave
681 .type new_dyna_leave, %function
682 ldr r0, [fp, #last_count-dynarec_local]
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
689 /* these are used to call memhandlers */
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
698 ldr r12, [fp, #last_count-dynarec_local]
700 str r2, [fp, #cycle-dynarec_local]
702 .size indirect_jump, .-indirect_jump
703 .size indirect_jump_indexed, .-indirect_jump_indexed
707 .type jump_eret, %function
709 ldr r1, [fp, #reg_cop0+48-dynarec_local] /* Status */
710 ldr r0, [fp, #last_count-dynarec_local]
713 str r1, [fp, #reg_cop0+48-dynarec_local] /* Status */
714 str r10, [fp, #cycle-dynarec_local]
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]
725 str r0, [fp, #pcaddr-dynarec_local]
727 ldr r0, [fp, #pcaddr-dynarec_local]
729 .size jump_eret, .-jump_eret
732 .global new_dyna_start
733 .type new_dyna_start, %function
735 /* ip is stored to conform EABI alignment */
736 stmfd sp!, {r4, r5, r6, r7, r8, r9, sl, fp, ip, lr}
738 movw fp, #:lower16:dynarec_local
739 movt fp, #:upper16:dynarec_local
743 ldr r0, [fp, #pcaddr-dynarec_local]
745 ldr r1, [fp, #next_interupt-dynarec_local]
746 ldr r10, [fp, #cycle-dynarec_local]
747 str r1, [fp, #last_count-dynarec_local]
752 .size new_dyna_start, .-new_dyna_start
755 .global write_rdram_new
756 .type write_rdram_new, %function
758 ldr r2, [fp, #address-dynarec_local]
759 ldr r0, [fp, #word-dynarec_local]
762 .size write_rdram_new, .-write_rdram_new
764 .global write_rdramb_new
765 .type write_rdramb_new, %function
767 ldr r2, [fp, #address-dynarec_local]
768 ldrb r0, [fp, #byte-dynarec_local]
772 .size write_rdramb_new, .-write_rdramb_new
774 .global write_rdramh_new
775 .type write_rdramh_new, %function
777 ldr r2, [fp, #address-dynarec_local]
778 ldrh r0, [fp, #hword-dynarec_local]
782 .size write_rdramh_new, .-write_rdramh_new
785 .global do_invalidate
786 .type do_invalidate, %function
788 ldr r2, [fp, #address-dynarec_local]
790 ldr r1, [fp, #invc_ptr-dynarec_local]
796 .size do_invalidate, .-do_invalidate
799 .global read_nomem_new
800 .type read_nomem_new, %function
805 /* should never happen */
808 ldr r2, [fp, #address-dynarec_local]
809 add r12, fp, #memory_map-dynarec_local
811 ldr r12, [r12, r0, lsl #2]
815 ldr r0, [r2, r12, lsl #2]
816 str r0, [fp, #readmem_dword-dynarec_local]
819 .size read_nomem_new, .-read_nomem_new
822 .global read_nomemb_new
823 .type read_nomemb_new, %function
828 ldr r2, [fp, #address-dynarec_local]
829 add r12, fp, #memory_map-dynarec_local
833 ldr r12, [r12, r0, lsl #2]
837 ldr r0, [fp, #word-dynarec_local]
838 str r0, [r2, r12, lsl #2]
840 .size write_nomem_new, .-write_nomem_new
843 .global write_nomemb_new
844 .type write_nomemb_new, %function
849 ldr r2, [fp, #address-dynarec_local]
850 add r12, fp, #memory_map-dynarec_local
854 ldr r12, [r12, r0, lsl #2]
859 ldrb r0, [fp, #byte-dynarec_local]
860 strb r0, [r2, r12, lsl #2]
862 .size write_nomemb_new, .-write_nomemb_new
865 .global write_nomemh_new
866 .type write_nomemh_new, %function
871 ldr r2, [fp, #address-dynarec_local]
872 add r12, fp, #memory_map-dynarec_local
876 ldr r12, [r12, r0, lsl #2]
881 ldrh r0, [fp, #hword-dynarec_local]
884 .size write_nomemh_new, .-write_nomemh_new
888 .type breakpoint, %function
890 /* Set breakpoint here for debugging */
892 .size breakpoint, .-breakpoint
893 .section .note.GNU-stack,"",%progbits