数为2行，字型为510callwrite_i
structio
MOVp00fh整体开显示，显示光标光标字符位烁callwrite_i
structio
MOVp006h光标右移整体显示不移动U
Registered
callwrite_i
structio
液晶初始化完毕
fMOVr410MOVtmod11hMOVth03chMOVtl00b0hsetbea允许开中断setbet0定时器T0，05S定时中断初始化完毕ret系统初始化完毕中断服务程序i
termit_t0pushaccpushpswMOVth03chMOVtl00b0h初值的设置MOVr410dj
zr4retur
cplledretur
poppswpopaccretii
termit_t1pushaccpushpsw
fMOVth19ehMOVtl158h初值设置dj
zr4retur
_t1cplledcplspeakerMOVr410retur
_t1poppswpopaccreti键盘扫描；；；；；；；keycallks调用行扫描程序j
zk1判断是否有按键按下，若A不等于0按键按下jmpkeyA等于零再次扫描取值k1calldelay调用延时子程序callks调用扫描程序j
zk2jmpkeyk2clrtr0关闭计时器clrledMOVr20feh行扫描初值为