keil c 问题求解

Build target 'Target 1'
compiling kl.c...
linking...
BL51 BANKED LINKER/LOCATER V6.22 - SN: Eval Version
COPYRIGHT KEIL ELEKTRONIK GmbH 1987 - 2009
".\kl.obj"
TO "1"
RAMSIZE(256)
******************************************************************************
* RESTRICTED VERSION WITH 0800H BYTE CODE SIZE LIMIT; USED: 09E8H BYTE (123%) *
******************************************************************************
Program Size: data=110.0 xdata=0 code=2765
LINK/LOCATE RUN COMPLETE.  0 WARNING(S),  0 ERROR(S)
*** FATAL ERROR L250: CODE SIZE LIMIT IN RESTRICTED VERSION EXCEEDED
    MODULE:  C:\KEIL\C51\LIB\C51S.LIB (-----)
    LIMIT:   0800H BYTES
Target not created
最后没有报错。这些是啥意思，求知道的分享一下，谢谢啦

LZ 用的是评估版：BL51 BANKED LINKER/LOCATER V6.22 - SN: Eval Version
评估版生成代码有限制：LIMIT:   0800H BYTES

谢谢你的讲解。

那怎么解决?重新安装新的版本?