[Gdb] Privileged Instruction Program Interrupt

[Devaughn, Hans]

When I try to simulate an embedded application program, built for the PowerPC, I get a Program Interrupt, Privileged Instruction. The instruction that causes the exception is a Move to Machine Status Register (MSR), (mtmsr). When I display the MSR, before executing, it is set to 0x2900. This value, in the MSR, has the Privilege Level (PL) equal to zero (processor can execute both user and supervisor level instructions).

Could anyone help? Thanks in advance

Hans