[XviD-devel] help needed in finding bug in "_transfer_16to8copy_mmx" - Part III
Stepping, Michael (FernUni)
michael.stepping at FernUni-Hagen.de
Sat Jul 21 15:10:00 CEST 2007
Hi experts,
I made some tests in encoding with "xvid".
---
Part III
*----> Statusabbild fur Threadkennung 0xecc <----*
eax=015ae1c0 ebx=00001300 ecx=00004c00 edx=00000130 esi=00004c00
edi=00000130
eip=00478cc6 esp=015addc4 ebp=00000098 iopl=0 nv up ei pl nz na pe
nc
cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000
efl=00010202
00004C00 = ????????????????
Funktion:
_transfer_16to8copy_mmx:
00478cb0 8b4c2404 mov ecx,[esp+0x4]
00478cb4 8b442408 mov eax,[esp+0x8]
00478cb8 8b54240c mov edx,[esp+0xc] EDX is: 304
00478cbc 0f6f00 movq mm0,qword ptr [eax]
00478cbf 0f6f4808 movq mm1,qword ptr [eax+0x8]
00478cc3 0f67c1 packuswb mm0,mm1 mm0=0, mm1=0;
FEHLER ->00478cc6 0f7f01 movq qword ptr [ecx],mm0
ds:0023:00004c00=???????????????? ECX=00004C00
Ausnahmenummer: c0000005 (Zugriffsverletzung)
00478cc9 0f6f5010 movq mm2,qword ptr [eax+0x10]
00478ccd 0f6f5818 movq mm3,qword ptr [eax+0x18]
00478cd1 0f67d3 packuswb mm2,mm3
00478cd4 0f7f1411 movq qword ptr [ecx+edx],mm2
00478cd8 8d0c51 lea ecx,[ecx+edx*2]
00478cdb 0f6f4020 movq mm0,qword ptr [eax+0x20]
00478cdf 0f6f4828 movq mm1,qword ptr [eax+0x28]
00478ce3 0f67c1 packuswb mm0,mm1
00478ce6 0f7f01 movq qword ptr [ecx],mm0
00478ce9 0f6f5030 movq mm2,qword ptr [eax+0x30]
*----> Stack Back Trace <----*
ChildEBP RetAddr Args to Child
00000098 00000000 00000000 00000000 00000000
MyProcess!AfxNewHandler+0xffff1c7f
******************
Call Stack:
_transfer_16to8copy_mmx()
_dequant_mpeg_inter_c()
_MBTransQuantIntra()
_enc_encode()
*----> Raw Stack Dump <----*
00000000015addc4 77 75 42 00 00 4c 00 00 - c0 e1 5a 01 30 01 00 00
wuB..L....Z.0...
00000000015addd4 c0 e1 5a 01 04 00 00 00 - 90 4f cb 01 c0 26 66 01
..Z......O...&f.
00000000015adde4 00 13 00 00 b0 8c 47 00 - d0 96 47 00 e8 76 42 00
......G...G..vB.
00000000015addf4 80 09 00 00 b0 8c 47 00 - 90 4f cb 01 c0 e1 5a 01
......G..O....Z.
00000000015ade04 00 00 00 00 3f 00 00 00 - 40 e4 5a 01 c0 e3 5a 01
....?... at .Z...Z
00000000015ade14 40 e3 5a 01 90 4f cb 01 - f8 e4 5a 01 c0 26 66 01
@.Z..O....Z..&f.
00000000015ade24 eb 95 43 00 c0 26 66 01 - 40 a2 24 01 90 4f cb 01
..C..&f. at .$..O
00000000015ade34 00 00 00 00 04 00 00 00 - c0 de 5a 01 00 00 00 00
..........Z.....
00000000015ade44 78 e5 5a 01 80 bf e0 00 - 3d 9f 94 7c d8 0d 15 00
x.Z.....=..|....
00000000015ade54 59 9f 94 7c ab a3 93 7c - 04 00 00 00 04 00 00 00
Y..|...|........
00000000015ade64 00 00 00 00 80 de 5a 01 - 0b 00 00 00 a0 de 5a 01
......Z.......Z.
00000000015ade74 00 00 00 00 09 00 00 00 - 00 00 00 00 00 e0 01 78
...............x
00000000015ade84 01 22 b6 40 00 00 00 00 - 00 00 00 00 b8 01 31 01
.". at ..........1
00000000015ade94 b8 01 31 01 00 00 00 00 - 00 00 00 00 00 e0 01 78
..1............x
00000000015adea4 01 22 b6 40 30 c6 18 63 - 1c 00 00 00 20 a0 2c 01
.". at 0..c
00000000015adeb4 08 a0 2c 01 00 00 00 00 - 00 00 00 00 00 00 00 00
..,.............
00000000015adec4 00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00
................
00000000015aded4 00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00
................
00000000015adee4 00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00
................
00000000015adef4 00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00
................
Part IV
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