On 02/16/2015 05:49 AM, Chen Gang S wrote: > +#define TILEGX_R_PC 55 /* LR register, pc pointer */
No, register 55 is the link register, not the PC. I.e. it is only special in that it receives the return address from the JAL instructions. > +typedef struct CPUTLState { > + uint64_t regs[56]; > + CPU_COMMON > +} CPUTLState; Which means you need another entry here for the PC. > +static inline void cpu_get_tb_cpu_state(CPUTLState *env, target_ulong *pc, > + target_ulong *cs_base, int *flags) > +{ > + *pc = env->regs[TILEGX_R_PC]; And you should not reference the link register here. r~