用modelsim仿真时出现以下错误

* Warning: (vsim-7) Failed to open readmem file "E:/modelsim_simulation/signal/addr.dat" in read mode.
# No such file or directory. (errno = ENOENT)    : E:/modelsim_simulation/signal/Signal.v(102)
#    Time: 0 ns  Iteration: 0  Instance: /Signal
# ** Warning: (vsim-7) Failed to open readmem file "E:/modelsim_simulation/signal/data.dat" in read mode.
# No such file or directory. (errno = ENOENT)    : E:/modelsim_simulation/signal/Signal.v(103)

我用系统任务$readmemh来读文件的

文件路径放正确了吗？