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Date: Mon, 9 Jun 2008 09:44:30 +0100
From: Thiemo Seufer <ths@networkno.de>
Subject: Re: [Qemu-devel] [4707] Add -mlongcall for PPC host (needed for
	MIPS for instance)
Message-ID: <20080609084429.GD11233@networkno.de>
References: <E1K5aWU-0003MA-UE@cvs.savannah.gnu.org>
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To: malc <av1474@comtv.ru>
Cc: qemu-devel@nongnu.org

malc wrote:
> Revision: 4707
>           http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=4707
> Author:   malc
> Date:     2008-06-09 06:06:30 +0000 (Mon, 09 Jun 2008)
> 
> Log Message:
> -----------
> Add -mlongcall for PPC host (needed for MIPS for instance)

With this change MIPS survives a lot longer, thanks. :-)
It still fails lateron, apparently in the MIPS ERET instruction, where
it incorrectly sees an EPC value of 0xffffffff. In the immediately
preceeding register dump the EPC value is still correct.


Thiemo


[...]
pc=0x80101df8 HI=0x103be3fc LO=0x103be44c ds 0090 80101ce4 1
GPR00: r0 00000000 at 1000a401 v0 1000a403 v1 ffff00ff
GPR04: a0 0000a400 a1 8048fa40 a2 00000001 a3 ffffffdf
GPR08: t0 00000000 t1 00989680 t2 00000000 t3 01312d00
GPR12: t4 81101030 t5 00000001 t6 0098963a t7 2733de80
GPR16: s0 00000042 s1 00c3f000 s2 804c6e3c s3 0000000a
GPR20: s4 804c800c s5 804d82c0 s6 8048f040 s7 804c0000
GPR24: t8 00004000 t9 8010bbf0 k0 80473e90 k1 80473e90
GPR28: gp 80472000 sp 80473de0 s8 804d0000 ra 80101ce4
CP0 Status  0x1000a403 Cause   0x40808400 EPC    0x80130efc
    Config0 0x80008483 Config1 0x9e190c8b LLAddr 0x81102240
IN: 
0x80101df8:  lw	v1,172(sp)
0x80101dfc:  mtc0	v1,$14
0x80101e00:  lw	ra,148(sp)
0x80101e04:  lw	gp,136(sp)
0x80101e08:  lw	t9,124(sp)
0x80101e0c:  lw	a3,52(sp)
0x80101e10:  lw	a2,48(sp)
0x80101e14:  lw	a1,44(sp)
0x80101e18:  lw	a0,40(sp)
0x80101e1c:  lw	v1,36(sp)
0x80101e20:  lw	v0,32(sp)
0x80101e24:  lw	sp,140(sp)
0x80101e28:  eret

---------------- 3 00000090
OP:
 ld_i32 T0,current_tc_gprs,$0x74
 movi_i32 T1,$0xac
 add_i32 T0,T0,T1
 qemu_ld32u T0,T0,$0x0
 st_i32 T0,current_tc_gprs,$0xc
 ld_i32 T0,current_tc_gprs,$0xc
 movi_i32 tmp0,$0x80101dfc
 ld_i32 tmp1,env,$0x924
 movi_i32 tmp4,$0x4
 mul_i32 tmp1,tmp1,tmp4
 mov_i32 tmp2,tmp1
 add_i32 tmp3,env,tmp2
 st_i32 tmp0,tmp3,$0x800
 mov_i32 tmp5,T0
 movi_i32 tmp0,$0x1f
 sar_i32 tmp6,tmp5,tmp0
 st_i32 tmp6,env,$0xa44
 st_i32 tmp5,env,$0xa48
 ld_i32 T0,current_tc_gprs,$0x74
 movi_i32 T1,$0x94
 add_i32 T0,T0,T1
 qemu_ld32u T0,T0,$0x0
 st_i32 T0,current_tc_gprs,$0x7c
 ld_i32 T0,current_tc_gprs,$0x74
 movi_i32 T1,$0x88
 add_i32 T0,T0,T1
 qemu_ld32u T0,T0,$0x0
 st_i32 T0,current_tc_gprs,$0x70
 ld_i32 T0,current_tc_gprs,$0x74
 movi_i32 T1,$0x7c
 add_i32 T0,T0,T1
 qemu_ld32u T0,T0,$0x0
 st_i32 T0,current_tc_gprs,$0x64
 ld_i32 T0,current_tc_gprs,$0x74
 movi_i32 T1,$0x34
 add_i32 T0,T0,T1
 qemu_ld32u T0,T0,$0x0
 st_i32 T0,current_tc_gprs,$0x1c
 ld_i32 T0,current_tc_gprs,$0x74
 movi_i32 T1,$0x30
 add_i32 T0,T0,T1
 qemu_ld32u T0,T0,$0x0
 st_i32 T0,current_tc_gprs,$0x18
 ld_i32 T0,current_tc_gprs,$0x74
 movi_i32 T1,$0x2c
 add_i32 T0,T0,T1
 qemu_ld32u T0,T0,$0x0
 st_i32 T0,current_tc_gprs,$0x14
 ld_i32 T0,current_tc_gprs,$0x74
 movi_i32 T1,$0x28
 add_i32 T0,T0,T1
 qemu_ld32u T0,T0,$0x0
 st_i32 T0,current_tc_gprs,$0x10
 ld_i32 T0,current_tc_gprs,$0x74
 movi_i32 T1,$0x24
 add_i32 T0,T0,T1
 qemu_ld32u T0,T0,$0x0
 st_i32 T0,current_tc_gprs,$0xc
 ld_i32 T0,current_tc_gprs,$0x74
 movi_i32 T1,$0x20
 add_i32 T0,T0,T1
 qemu_ld32u T0,T0,$0x0
 st_i32 T0,current_tc_gprs,$0x8
 ld_i32 T0,current_tc_gprs,$0x74
 movi_i32 T1,$0x8c
 add_i32 T0,T0,T1
 qemu_ld32u T0,T0,$0x0
 st_i32 T0,current_tc_gprs,$0x74
 movi_i32 tmp0,$0x80101e28
 ld_i32 tmp3,env,$0x924
 movi_i32 tmp4,$0x4
 mul_i32 tmp3,tmp3,tmp4
 mov_i32 tmp2,tmp3
 add_i32 tmp1,env,tmp2
 st_i32 tmp0,tmp1,$0x800
 eret 
 movi_i32 tmp0,$do_interrupt_restart
 call tmp0,$0x0,$0
 exit_tb $0x0

OP after la:
 ld_i32 T0,current_tc_gprs,$0x74
 movi_i32 T1,$0xac
 add_i32 T0,T0,T1
 qemu_ld32u T0,T0,$0x0
 st_i32 T0,current_tc_gprs,$0xc
 ld_i32 T0,current_tc_gprs,$0xc
 movi_i32 tmp0,$0x80101dfc
 ld_i32 tmp1,env,$0x924
 movi_i32 tmp4,$0x4
 mul_i32 tmp1,tmp1,tmp4
 mov_i32 tmp2,tmp1
 add_i32 tmp3,env,tmp2
 st_i32 tmp0,tmp3,$0x800
 mov_i32 tmp5,T0
 movi_i32 tmp0,$0x1f
 sar_i32 tmp6,tmp5,tmp0
 st_i32 tmp6,env,$0xa44
 st_i32 tmp5,env,$0xa48
 ld_i32 T0,current_tc_gprs,$0x74
 movi_i32 T1,$0x94
 add_i32 T0,T0,T1
 qemu_ld32u T0,T0,$0x0
 st_i32 T0,current_tc_gprs,$0x7c
 ld_i32 T0,current_tc_gprs,$0x74
 movi_i32 T1,$0x88
 add_i32 T0,T0,T1
 qemu_ld32u T0,T0,$0x0
 st_i32 T0,current_tc_gprs,$0x70
 ld_i32 T0,current_tc_gprs,$0x74
 movi_i32 T1,$0x7c
 add_i32 T0,T0,T1
 qemu_ld32u T0,T0,$0x0
 st_i32 T0,current_tc_gprs,$0x64
 ld_i32 T0,current_tc_gprs,$0x74
 movi_i32 T1,$0x34
 add_i32 T0,T0,T1
 qemu_ld32u T0,T0,$0x0
 st_i32 T0,current_tc_gprs,$0x1c
 ld_i32 T0,current_tc_gprs,$0x74
 movi_i32 T1,$0x30
 add_i32 T0,T0,T1
 qemu_ld32u T0,T0,$0x0
 st_i32 T0,current_tc_gprs,$0x18
 ld_i32 T0,current_tc_gprs,$0x74
 movi_i32 T1,$0x2c
 add_i32 T0,T0,T1
 qemu_ld32u T0,T0,$0x0
 st_i32 T0,current_tc_gprs,$0x14
 ld_i32 T0,current_tc_gprs,$0x74
 movi_i32 T1,$0x28
 add_i32 T0,T0,T1
 qemu_ld32u T0,T0,$0x0
 st_i32 T0,current_tc_gprs,$0x10
 ld_i32 T0,current_tc_gprs,$0x74
 movi_i32 T1,$0x24
 add_i32 T0,T0,T1
 qemu_ld32u T0,T0,$0x0
 st_i32 T0,current_tc_gprs,$0xc
 ld_i32 T0,current_tc_gprs,$0x74
 movi_i32 T1,$0x20
 add_i32 T0,T0,T1
 qemu_ld32u T0,T0,$0x0
 st_i32 T0,current_tc_gprs,$0x8
 ld_i32 T0,current_tc_gprs,$0x74
 movi_i32 T1,$0x8c
 add_i32 T0,T0,T1
 qemu_ld32u T0,T0,$0x0
 st_i32 T0,current_tc_gprs,$0x74
 movi_i32 tmp0,$0x80101e28
 ld_i32 tmp3,env,$0x924
 movi_i32 tmp4,$0x4
 mul_i32 tmp3,tmp3,tmp4
 mov_i32 tmp2,tmp3
 add_i32 tmp1,env,tmp2
 st_i32 tmp0,tmp1,$0x800
 eret 
 movi_i32 tmp0,$do_interrupt_restart
 call tmp0,$0x0,$0
 exit_tb $0x0
 end 

OUT: [size=1500]
0x50cfe340:  lwz	r3,2344(r27)
0x50cfe344:  lwz	r24,116(r3)
0x50cfe348:  li	r25,172
0x50cfe34c:  add	r24,r24,r25
0x50cfe350:  rlwinm	r3,r24,25,19,26
0x50cfe354:  add	r3,r3,r27
0x50cfe358:  lwzu	r4,2856(r3)
0x50cfe35c:  rlwinm	r0,r24,0,30,19
0x50cfe360:  cmpw	cr7,r0,r4
0x50cfe364:  beq	cr7,50CFE388
0x50cfe368:  mr	r3,r24
0x50cfe36c:  li	r4,0
0x50cfe370:  lis	r0,4113
0x50cfe374:  ori	r0,r0,56920
0x50cfe378:  mtctr	r0
0x50cfe37c:  bctrl
0x50cfe380:  mr	r24,r3
0x50cfe384:  b	50CFE394
0x50cfe388:  lwz	r3,20(r3)
0x50cfe38c:  add	r3,r3,r24
0x50cfe390:  lwz	r24,0(r3)
0x50cfe394:  lwz	r3,2344(r27)
0x50cfe398:  stw	r24,12(r3)
0x50cfe39c:  lwz	r24,12(r3)
0x50cfe3a0:  lwz	r4,2340(r27)
0x50cfe3a4:  mulli	r4,r4,4
0x50cfe3a8:  add	r4,r27,r4
0x50cfe3ac:  lis	r5,-32752
0x50cfe3b0:  ori	r5,r5,7676
0x50cfe3b4:  stw	r5,2048(r4)
0x50cfe3b8:  mr	r4,r24
0x50cfe3bc:  srawi	r5,r4,31
0x50cfe3c0:  stw	r5,2628(r27)
0x50cfe3c4:  stw	r4,2632(r27)
0x50cfe3c8:  lwz	r24,116(r3)
0x50cfe3cc:  li	r25,148
0x50cfe3d0:  add	r24,r24,r25
0x50cfe3d4:  rlwinm	r3,r24,25,19,26
0x50cfe3d8:  add	r3,r3,r27
0x50cfe3dc:  lwzu	r4,2856(r3)
0x50cfe3e0:  rlwinm	r0,r24,0,30,19
0x50cfe3e4:  cmpw	cr7,r0,r4
0x50cfe3e8:  beq	cr7,50CFE40C
0x50cfe3ec:  mr	r3,r24
0x50cfe3f0:  li	r4,0
0x50cfe3f4:  lis	r0,4113
0x50cfe3f8:  ori	r0,r0,56920
0x50cfe3fc:  mtctr	r0
0x50cfe400:  bctrl
0x50cfe404:  mr	r24,r3
0x50cfe408:  b	50CFE418
0x50cfe40c:  lwz	r3,20(r3)
0x50cfe410:  add	r3,r3,r24
0x50cfe414:  lwz	r24,0(r3)
0x50cfe418:  lwz	r3,2344(r27)
0x50cfe41c:  stw	r24,124(r3)
0x50cfe420:  lwz	r24,116(r3)
0x50cfe424:  li	r25,136
0x50cfe428:  add	r24,r24,r25
0x50cfe42c:  rlwinm	r3,r24,25,19,26
0x50cfe430:  add	r3,r3,r27
0x50cfe434:  lwzu	r4,2856(r3)
0x50cfe438:  rlwinm	r0,r24,0,30,19
0x50cfe43c:  cmpw	cr7,r0,r4
0x50cfe440:  beq	cr7,50CFE464
0x50cfe444:  mr	r3,r24
0x50cfe448:  li	r4,0
0x50cfe44c:  lis	r0,4113
0x50cfe450:  ori	r0,r0,56920
0x50cfe454:  mtctr	r0
0x50cfe458:  bctrl
0x50cfe45c:  mr	r24,r3
0x50cfe460:  b	50CFE470
0x50cfe464:  lwz	r3,20(r3)
0x50cfe468:  add	r3,r3,r24
0x50cfe46c:  lwz	r24,0(r3)
0x50cfe470:  lwz	r3,2344(r27)
0x50cfe474:  stw	r24,112(r3)
0x50cfe478:  lwz	r24,116(r3)
0x50cfe47c:  li	r25,124
0x50cfe480:  add	r24,r24,r25
0x50cfe484:  rlwinm	r3,r24,25,19,26
0x50cfe488:  add	r3,r3,r27
0x50cfe48c:  lwzu	r4,2856(r3)
0x50cfe490:  rlwinm	r0,r24,0,30,19
0x50cfe494:  cmpw	cr7,r0,r4
0x50cfe498:  beq	cr7,50CFE4BC
0x50cfe49c:  mr	r3,r24
0x50cfe4a0:  li	r4,0
0x50cfe4a4:  lis	r0,4113
0x50cfe4a8:  ori	r0,r0,56920
0x50cfe4ac:  mtctr	r0
0x50cfe4b0:  bctrl
0x50cfe4b4:  mr	r24,r3
0x50cfe4b8:  b	50CFE4C8
0x50cfe4bc:  lwz	r3,20(r3)
0x50cfe4c0:  add	r3,r3,r24
0x50cfe4c4:  lwz	r24,0(r3)
0x50cfe4c8:  lwz	r3,2344(r27)
0x50cfe4cc:  stw	r24,100(r3)
0x50cfe4d0:  lwz	r24,116(r3)
0x50cfe4d4:  li	r25,52
0x50cfe4d8:  add	r24,r24,r25
0x50cfe4dc:  rlwinm	r3,r24,25,19,26
0x50cfe4e0:  add	r3,r3,r27
0x50cfe4e4:  lwzu	r4,2856(r3)
0x50cfe4e8:  rlwinm	r0,r24,0,30,19
0x50cfe4ec:  cmpw	cr7,r0,r4
0x50cfe4f0:  beq	cr7,50CFE514
0x50cfe4f4:  mr	r3,r24
0x50cfe4f8:  li	r4,0
0x50cfe4fc:  lis	r0,4113
0x50cfe500:  ori	r0,r0,56920
0x50cfe504:  mtctr	r0
0x50cfe508:  bctrl
0x50cfe50c:  mr	r24,r3
0x50cfe510:  b	50CFE520
0x50cfe514:  lwz	r3,20(r3)
0x50cfe518:  add	r3,r3,r24
0x50cfe51c:  lwz	r24,0(r3)
0x50cfe520:  lwz	r3,2344(r27)
0x50cfe524:  stw	r24,28(r3)
0x50cfe528:  lwz	r24,116(r3)
0x50cfe52c:  li	r25,48
0x50cfe530:  add	r24,r24,r25
0x50cfe534:  rlwinm	r3,r24,25,19,26
0x50cfe538:  add	r3,r3,r27
0x50cfe53c:  lwzu	r4,2856(r3)
0x50cfe540:  rlwinm	r0,r24,0,30,19
0x50cfe544:  cmpw	cr7,r0,r4
0x50cfe548:  beq	cr7,50CFE56C
0x50cfe54c:  mr	r3,r24
0x50cfe550:  li	r4,0
0x50cfe554:  lis	r0,4113
0x50cfe558:  ori	r0,r0,56920
0x50cfe55c:  mtctr	r0
0x50cfe560:  bctrl
0x50cfe564:  mr	r24,r3
0x50cfe568:  b	50CFE578
0x50cfe56c:  lwz	r3,20(r3)
0x50cfe570:  add	r3,r3,r24
0x50cfe574:  lwz	r24,0(r3)
0x50cfe578:  lwz	r3,2344(r27)
0x50cfe57c:  stw	r24,24(r3)
0x50cfe580:  lwz	r24,116(r3)
0x50cfe584:  li	r25,44
0x50cfe588:  add	r24,r24,r25
0x50cfe58c:  rlwinm	r3,r24,25,19,26
0x50cfe590:  add	r3,r3,r27
0x50cfe594:  lwzu	r4,2856(r3)
0x50cfe598:  rlwinm	r0,r24,0,30,19
0x50cfe59c:  cmpw	cr7,r0,r4
0x50cfe5a0:  beq	cr7,50CFE5C4
0x50cfe5a4:  mr	r3,r24
0x50cfe5a8:  li	r4,0
0x50cfe5ac:  lis	r0,4113
0x50cfe5b0:  ori	r0,r0,56920
0x50cfe5b4:  mtctr	r0
0x50cfe5b8:  bctrl
0x50cfe5bc:  mr	r24,r3
0x50cfe5c0:  b	50CFE5D0
0x50cfe5c4:  lwz	r3,20(r3)
0x50cfe5c8:  add	r3,r3,r24
0x50cfe5cc:  lwz	r24,0(r3)
0x50cfe5d0:  lwz	r3,2344(r27)
0x50cfe5d4:  stw	r24,20(r3)
0x50cfe5d8:  lwz	r24,116(r3)
0x50cfe5dc:  li	r25,40
0x50cfe5e0:  add	r24,r24,r25
0x50cfe5e4:  rlwinm	r3,r24,25,19,26
0x50cfe5e8:  add	r3,r3,r27
0x50cfe5ec:  lwzu	r4,2856(r3)
0x50cfe5f0:  rlwinm	r0,r24,0,30,19
0x50cfe5f4:  cmpw	cr7,r0,r4
0x50cfe5f8:  beq	cr7,50CFE61C
0x50cfe5fc:  mr	r3,r24
0x50cfe600:  li	r4,0
0x50cfe604:  lis	r0,4113
0x50cfe608:  ori	r0,r0,56920
0x50cfe60c:  mtctr	r0
0x50cfe610:  bctrl
0x50cfe614:  mr	r24,r3
0x50cfe618:  b	50CFE628
0x50cfe61c:  lwz	r3,20(r3)
0x50cfe620:  add	r3,r3,r24
0x50cfe624:  lwz	r24,0(r3)
0x50cfe628:  lwz	r3,2344(r27)
0x50cfe62c:  stw	r24,16(r3)
0x50cfe630:  lwz	r24,116(r3)
0x50cfe634:  li	r25,36
0x50cfe638:  add	r24,r24,r25
0x50cfe63c:  rlwinm	r3,r24,25,19,26
0x50cfe640:  add	r3,r3,r27
0x50cfe644:  lwzu	r4,2856(r3)
0x50cfe648:  rlwinm	r0,r24,0,30,19
0x50cfe64c:  cmpw	cr7,r0,r4
0x50cfe650:  beq	cr7,50CFE674
0x50cfe654:  mr	r3,r24
0x50cfe658:  li	r4,0
0x50cfe65c:  lis	r0,4113
0x50cfe660:  ori	r0,r0,56920
0x50cfe664:  mtctr	r0
0x50cfe668:  bctrl
0x50cfe66c:  mr	r24,r3
0x50cfe670:  b	50CFE680
0x50cfe674:  lwz	r3,20(r3)
0x50cfe678:  add	r3,r3,r24
0x50cfe67c:  lwz	r24,0(r3)
0x50cfe680:  lwz	r3,2344(r27)
0x50cfe684:  stw	r24,12(r3)
0x50cfe688:  lwz	r24,116(r3)
0x50cfe68c:  li	r25,32
0x50cfe690:  add	r24,r24,r25
0x50cfe694:  rlwinm	r3,r24,25,19,26
0x50cfe698:  add	r3,r3,r27
0x50cfe69c:  lwzu	r4,2856(r3)
0x50cfe6a0:  rlwinm	r0,r24,0,30,19
0x50cfe6a4:  cmpw	cr7,r0,r4
0x50cfe6a8:  beq	cr7,50CFE6CC
0x50cfe6ac:  mr	r3,r24
0x50cfe6b0:  li	r4,0
0x50cfe6b4:  lis	r0,4113
0x50cfe6b8:  ori	r0,r0,56920
0x50cfe6bc:  mtctr	r0
0x50cfe6c0:  bctrl
0x50cfe6c4:  mr	r24,r3
0x50cfe6c8:  b	50CFE6D8
0x50cfe6cc:  lwz	r3,20(r3)
0x50cfe6d0:  add	r3,r3,r24
0x50cfe6d4:  lwz	r24,0(r3)
0x50cfe6d8:  lwz	r3,2344(r27)
0x50cfe6dc:  stw	r24,8(r3)
0x50cfe6e0:  lwz	r24,116(r3)
0x50cfe6e4:  li	r25,140
0x50cfe6e8:  add	r24,r24,r25
0x50cfe6ec:  rlwinm	r3,r24,25,19,26
0x50cfe6f0:  add	r3,r3,r27
0x50cfe6f4:  lwzu	r4,2856(r3)
0x50cfe6f8:  rlwinm	r0,r24,0,30,19
0x50cfe6fc:  cmpw	cr7,r0,r4
0x50cfe700:  beq	cr7,50CFE724
0x50cfe704:  mr	r3,r24
0x50cfe708:  li	r4,0
0x50cfe70c:  lis	r0,4113
0x50cfe710:  ori	r0,r0,56920
0x50cfe714:  mtctr	r0
0x50cfe718:  bctrl
0x50cfe71c:  mr	r24,r3
0x50cfe720:  b	50CFE730
0x50cfe724:  lwz	r3,20(r3)
0x50cfe728:  add	r3,r3,r24
0x50cfe72c:  lwz	r24,0(r3)
0x50cfe730:  lwz	r3,2344(r27)
0x50cfe734:  stw	r24,116(r3)
0x50cfe738:  lwz	r4,2340(r27)
0x50cfe73c:  mulli	r4,r4,4
0x50cfe740:  add	r4,r27,r4
0x50cfe744:  lis	r5,-32752
0x50cfe748:  ori	r5,r5,7720
0x50cfe74c:  stw	r5,2048(r4)
0x50cfe750:  mflr	r0
0x50cfe754:  stwu	r1,-16(r1)
0x50cfe758:  lis	r9,4122
0x50cfe75c:  stw	r0,20(r1)
0x50cfe760:  lwz	r0,-500(r9)
0x50cfe764:  andi.	r9,r0,32
0x50cfe768:  beq+	50CFE77C
0x50cfe76c:  lis	r9,4114
0x50cfe770:  addi	r9,r9,-13244
0x50cfe774:  mtctr	r9
0x50cfe778:  bctrl
0x50cfe77c:  lwz	r0,2608(r27)
0x50cfe780:  andi.	r9,r0,4
0x50cfe784:  beq	50CFE7A8
0x50cfe788:  lwz	r9,2340(r27)
0x50cfe78c:  rlwinm	r0,r0,0,30,28
0x50cfe790:  lwz	r11,2788(r27)
0x50cfe794:  rlwinm	r9,r9,2,0,29
0x50cfe798:  stw	r0,2608(r27)
0x50cfe79c:  add	r9,r9,r27
0x50cfe7a0:  stw	r11,2048(r9)
0x50cfe7a4:  b	50CFE7C8
0x50cfe7a8:  lwz	r9,2340(r27)
0x50cfe7ac:  lwz	r0,2608(r27)
0x50cfe7b0:  rlwinm	r9,r9,2,0,29
0x50cfe7b4:  lwz	r11,2628(r27)
0x50cfe7b8:  rlwinm	r0,r0,0,31,29
0x50cfe7bc:  add	r9,r9,r27
0x50cfe7c0:  stw	r11,2048(r9)
0x50cfe7c4:  stw	r0,2608(r27)
0x50cfe7c8:  lwz	r9,2608(r27)
0x50cfe7cc:  mr	r11,r27
0x50cfe7d0:  lwz	r10,2808(r27)
0x50cfe7d4:  andi.	r0,r9,2
0x50cfe7d8:  li	r0,-252
0x50cfe7dc:  and	r8,r10,r0
0x50cfe7e0:  stw	r8,2808(r27)
0x50cfe7e4:  bne	50CFE804
0x50cfe7e8:  andi.	r0,r9,4
0x50cfe7ec:  bne	50CFE804
0x50cfe7f0:  andi.	r0,r10,4
0x50cfe7f4:  bne	50CFE804
0x50cfe7f8:  rlwinm	r0,r9,29,30,31
0x50cfe7fc:  or	r0,r8,r0
0x50cfe800:  stw	r0,2808(r27)
0x50cfe804:  lwz	r0,2608(r11)
0x50cfe808:  andis.	r9,r0,4096
0x50cfe80c:  bne	50CFE81C
0x50cfe810:  lwz	r0,2808(r11)
0x50cfe814:  andi.	r9,r0,3
0x50cfe818:  bne	50CFE828
0x50cfe81c:  lwz	r0,2808(r11)
0x50cfe820:  ori	r0,r0,16
0x50cfe824:  stw	r0,2808(r11)
0x50cfe828:  lwz	r0,2608(r11)
0x50cfe82c:  andis.	r9,r0,8192
0x50cfe830:  beq	50CFE840
0x50cfe834:  lwz	r0,2808(r11)
0x50cfe838:  ori	r0,r0,32
0x50cfe83c:  stw	r0,2808(r11)
0x50cfe840:  lwz	r0,2608(r11)
0x50cfe844:  andis.	r9,r0,1024
0x50cfe848:  beq	50CFE858
0x50cfe84c:  lwz	r0,2808(r11)
0x50cfe850:  ori	r0,r0,64
0x50cfe854:  stw	r0,2808(r11)
0x50cfe858:  lwz	r0,2836(r11)
0x50cfe85c:  andi.	r9,r0,64
0x50cfe860:  beq	50CFE884
0x50cfe864:  lwz	r9,2336(r11)
0x50cfe868:  lwz	r0,284(r9)
0x50cfe86c:  andis.	r9,r0,64
0x50cfe870:  beq	50CFE8C4
0x50cfe874:  lwz	r0,2808(r11)
0x50cfe878:  ori	r0,r0,128
0x50cfe87c:  stw	r0,2808(r11)
0x50cfe880:  b	50CFE8C4
0x50cfe884:  andi.	r9,r0,32
0x50cfe888:  beq	50CFE8A4
0x50cfe88c:  lwz	r0,2808(r11)
0x50cfe890:  andi.	r9,r0,8
0x50cfe894:  beq	50CFE8C4
0x50cfe898:  ori	r0,r0,128
0x50cfe89c:  stw	r0,2808(r11)
0x50cfe8a0:  b	50CFE8C4
0x50cfe8a4:  andi.	r9,r0,8
0x50cfe8a8:  beq	50CFE8C4
0x50cfe8ac:  lwz	r0,2608(r11)
0x50cfe8b0:  cmpwi	cr7,r0,0
0x50cfe8b4:  bge+	cr7,50CFE8C4
0x50cfe8b8:  lwz	r0,2808(r11)
0x50cfe8bc:  ori	r0,r0,128
0x50cfe8c0:  stw	r0,2808(r11)
0x50cfe8c4:  lis	r9,4122
0x50cfe8c8:  lwz	r0,-500(r9)
0x50cfe8cc:  andi.	r9,r0,32
0x50cfe8d0:  beq+	50CFE8E4
0x50cfe8d4:  lis	r9,4114
0x50cfe8d8:  addi	r9,r9,-13028
0x50cfe8dc:  mtctr	r9
0x50cfe8e0:  bctrl
0x50cfe8e4:  li	r0,1
0x50cfe8e8:  stw	r0,2664(r27)
0x50cfe8ec:  lwz	r0,20(r1)
0x50cfe8f0:  addi	r1,r1,16
0x50cfe8f4:  mtlr	r0
0x50cfe8f8:  lis	r0,4113
0x50cfe8fc:  ori	r0,r0,47020
0x50cfe900:  mtctr	r0
0x50cfe904:  bctrl
0x50cfe908:  li	r3,0
0x50cfe90c:  lis	r0,4151
0x50cfe910:  ori	r0,r0,61104
0x50cfe914:  mtctr	r0
0x50cfe918:  bctr

ERET: PC 80101e28 EPC ffffffff
  =>  PC ffffffff EPC ffffffff