Build target 'Target 1'
assembling STARTUP.A51...
assembling o.asm...
linking...
*** WARNING L5: CODE SPACE MEMORY OVERLAP
    FROM:    0000H
    TO:      0002H
*** WARNING L1: UNRESOLVED EXTERNAL SYMBOL
    SYMBOL:  ?C_START
    MODULE:  STARTUP.obj (?C_STARTUP)
*** WARNING L2: REFERENCE MADE TO UNRESOLVED EXTERNAL
    SYMBOL:  ?C_START
    MODULE:  STARTUP.obj (?C_STARTUP)
    ADDRESS: 0052H
Program Size: data=9.0 xdata=0 code=87
请在[家看下是什么间题引起的