Weird exception

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m0skit0
Posts: 191
Joined: Tue Jun 02, 2009 8:58 pm

Weird exception

Post by m0skit0 »

I cannot understand why this exception is triggered:

Code: Select all

host0:/> Exception - Bus error (data)
Thread ID - 0x04B5A46F
Th Name   - HBL
EPC       - 0x08E501CC
Cause     - 0x9000001C
BadVAddr  - 0x297D0504
Status    - 0x00088613
zr:0x00000000 at:0xDEADBEEF v0:0x22400000 v1:0x00000028
a0:0x00000001 a1:0x00000004 a2:0xDEADBEEF a3:0x22400028
t0:0xDEADBEEF t1:0xDEADBEEF t2:0xDEADBEEF t3:0xDEADBEEF
t4:0xDEADBEEF t5:0xDEADBEEF t6:0xDEADBEEF t7:0xDEADBEEF
s0:0x00000006 s1:0x00011220 s2:0x00000002 s3:0x09FC1A10
s4:0x00000000 s5:0x08E50000 s6:0x09FC1A68 s7:0x08E51C34
t8:0xDEADBEEF t9:0xDEADBEEF k0:0x09FC1B00 k1:0x00000000
gp:0x08D4B440 sp:0x09FC19E0 fp:0x00016050 ra:0x08E5043C
0x08E501CC: 0x14800003 '....' - bnez       $a0, 0x08E501DC
Any help? Thanks
The Incredible Bill Gates wrote:The obvious mathematical breakthrough would be development of an easy way to factor large prime numbers.
crazyc
Posts: 408
Joined: Fri Jun 17, 2005 10:13 am

Re: Weird exception

Post by crazyc »

Look at the instruction in the delay slot.
m0skit0
Posts: 191
Joined: Tue Jun 02, 2009 8:58 pm

Post by m0skit0 »

Yes you're totally right, it was just that.

Code: Select all

0x08E501D0: 0x8CE60000 '....' - lw         $a2, 0($a3)
The Incredible Bill Gates wrote:The obvious mathematical breakthrough would be development of an easy way to factor large prime numbers.
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