keil4编译出问题了。。。

Build target 'Target 1'
compiling clock.c...
linking...
BL51 BANKED LINKER/LOCATER V6.22 - SN: Eval Version
COPYRIGHT KEIL ELEKTRONIK GmbH 1987 - 2009
"clock.obj"
TO "clock"
RAMSIZE(256)
******************************************************************************
* RESTRICTED VERSION WITH 0800H BYTE CODE SIZE LIMIT; USED: 0AB4H BYTE (133%) *
******************************************************************************
Program Size: data=35.1 xdata=0 code=2963
LINK/LOCATE RUN COMPLETE. 0 WARNING(S), 0 ERROR(S)
*** FATAL ERROR L250: CODE SIZE LIMIT IN RESTRICTED VERSION EXCEEDED
MODULE: D:\KEIL\C51\LIB\C51S.LIB (-----)
LIMIT: 0800H BYTES
Target not created