MOVDXIOCPTr
MOVAL0F0Hr
OUTDXALttt四路口红灯全亮r
r
CALLDELAY1ttt延时并查按键r
r
MOVAL01011010Bttttr
OUTDXALtttt东西绿灯亮r
r
CALLDELAY1r
CALLDELAY1r
ORAL0F0Hr
OUTDXALttt东西绿灯灭r
东西黄灯闪烁八次r
r
MOVCX8Hr
IOLED2tMOVDXIOBPTr
MOVALDS0601Hr
ANDAL01011111Br
OUTDXALtttt东西黄灯亮r
r
CALLDELAY1tttt延时并查按键r
ORAL10100000B共阳极因此低电平点亮r
OUTDXALr
CALLDELAY1tttt延时并查按键r
LOOPIOLED2tttt东西黄灯闪烁8次r
r
MOVDXIOCPTr
MOVAL0F0HPC口高位4熄灭r
OUTDXALttt四路口红灯全亮r
CALLDELAY1延时并查按键r
JMPIOLED0tttt循环一圈继续循环r
延时并查按键r
DELAY1tPUSHAX保护现场r
PUSHCXr
PUSHDXr
r
MOVCX10H循环16次r
DELY2tCALLKEY查询按键r
CALLDELAY2调用延时2r
LOOPDELY2等于零执行下一条指令r
POPDX恢复现场r
POPCXr
POPAXr
RET返回调用延时的地方r
DELAY2PUSHCX压入调用CX的内容r
MOVCX700H循环700H次r
DELA1tLOOPDELA1r
POPCX恢复调用CX的内容r
RET返回调用的地方r
r
按键查询r
KEYPUSHAX保护现场r
PUSHCXr
r
KEY0MOVDXIOAPTPA输入r
INALDX读按键值r
MOVAHAL保存一下按键值r
r