Cortex_M0 simulation fail

Deare

       I am using Cortex-M0 DesignStart Pro. When I use my program to simulation, I found the HADDR from 0, to 4, and the to ffff_fffd8, the  HRDATA is  0x2000_06f8 and 0x800_0159,the HADDR should not be ffff_ffd8,So I think it's unusual, but I don't know where the problem is. The siSee Annex for Simulation Waveform.