msp430 gdb

[Aamer Jaleel]

I am using the latest gdb-5.1.1 for the msp430 compiler...  i have
compiled it onto a x86 workstation running linux (mandrake 9.0).  I
basically have reverse engineered the msp430 in verilog and was looking to
verify my core with the msp430 core in terms of register values.

I was wondering how accurate are the register values whenever i step the
debugger instruction by instruction?  I see some abnormalities like for
example when executing an instrtion mov r0, r2, with addressing mode
As=11, it updates r3 to -1.  (see sample binary when instruction at
address 0x1100 is executed)

Additionally, when you execute the push r2 command, it also changes r4.
(see sample binary when executing instruction at address 0x11bc).

Can you please let me know if that is correct or if it is a bug?  I'm
attaching a sample msp430 binary that i'm using...

Best Wishes,
Aamer


Aamer Jaleel
Graduate Research Assistant
Systems and Computer Architecture Lab
University of Maryland, College Park, MD
http://www.glue.umd.edu/~ajaleel

jacobi.gdb
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