This is the machine specific register contents for the thread at the time of the exception.
typedef struct _CONTEXTRECORD (POWERPC) { ULONG ctx_Reg_gpr[32]; ULONG ctx_Reg_iar; ULONG ctx_Reg_msr; ULONG ctx_Reg_cr; ULONG ctx_Reg_lr; ULONG ctx_Reg_ctr; ULONG ctx_Reg_xer; ULONG ctx_Reg_mq; } CONTEXTRECORD (POWERPC); typedef CONTEXTRECORD ( POWERPC ) * PCONTEXTRECORD ;