BDI2000 gdb register display

BDI2000 gdb register display

[Robin Gilks]

Greetings

Just been debugging some exception handling stuff and I'm sure that the 
combination of bdi2000, gdb & ddd I have is suffering an 'off by one' 
error in the register display

e.g. I see this
srr0	0x818000
srr1	0x3fca360
tbl	0x9002

But the sensible values of srr0 & srr1 should be

srr0	0x3fca360
srr1	0x9002

so that fault address is in srr0 and the bits from MSR (EE, ME and RI) 
are set in srr1.

Anyone seen this and where is the slippage coming from (r0 to r31 look 
OK as far as I can see but don't really know about the others!!).

I've tried both REGLIST ALL and REGLIST SPR in the bdi2000 config but it 
doesn't appear to make a difference.

bdi2000 code=1.13, fpga=1.02
mpc8xx target
gdb 5.3
ddd 3.3.1

Many thanks

-- 
Robin Gilks
Senior Design Engineer          Phone: (+64)(3) 357 1569
Tait Electronics                Fax  :  (+64)(3) 359 4632
PO Box 1645 Christchurch        Email : robin.gilks@tait.co.nz
New Zealand

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Re: BDI2000 gdb register display

[MuthuGanesh M]

What is there in your reg8xx.def?

Regards,
Muthuganesh

Re: BDI2000 gdb register display

[Robin Gilks]

MuthuGanesh M wrote:
> What is there in your reg8xx.def?
> 
> Regards,
> Muthuganesh

Many thanks for the reply - I'd forgotten about that file!

I'm using the standard reg860.def file as supplied with the Abatron 
debugger. Sample below:

sp              GPR     1
pc              SPR     26                      ; is SRR0
;
xer             SPR     1
lr              SPR     8
ctr             SPR     9
dsisr           SPR     18
dar             SPR     19
dec             SPR     22
srr0            SPR     26
srr1            SPR     27
;
cmpa            SPR     144
[snip]

I hope this provides sufficient to verify...


-- 
Robin Gilks
Senior Design Engineer          Phone: (+64)(3) 357 1569
Tait Electronics                Fax  :  (+64)(3) 359 4632
PO Box 1645 Christchurch        Email : robin.gilks@tait.co.nz
New Zealand

=======================================================================
This email, including any attachments, is only for the intended
addressee.  It is subject to copyright, is confidential and may be
the subject of legal or other privilege, none of which is waived or
lost by reason of this transmission.
If the receiver is not the intended addressee, please accept our
apologies, notify us by return, delete all copies and perform no
other act on the email.
Unfortunately, we cannot warrant that the email has not been
 altered or corrupted during transmission.
=======================================================================