8255输入口的应用\h4ex02.lst
................\h4ex02.obj
................\h4ex03.DSN
................\h4ex03.hex
................\h4ex03.lnp
................\h4ex03.M51
................\h4ex03.plg
................\h4ex03.PWI
................\h4ex03_1.ASM
................\h4ex03_1.C
................\Last Loaded h4ex03.DBK
................\STARTUP.A51
................\STARTUP.LST
................\STARTUP.OBJ
................\h4ex03_1.LST
................\h4ex03_1.OBJ
................\h4ex03
................\h4ex03_Uv2.Bak
................\h4ex03.Uv2
................\h4ex03_Opt.Bak
................\h4ex03.Opt
8255输入口的应用
......出口的应用\h4ex03_2.ASM
................\h4ex03_2.C
................\h4ex03_2.DSN
................\h4ex03_2.hex
................\h4ex03_2.lnp
................\h4ex03_2.M51
................\h4ex03_2.plg
................\h4ex03_2.PWI
................\Last Loaded h4ex03_2.DBK
................\STARTUP.A51
................\STARTUP.LST
................\STARTUP.OBJ
................\h4ex03_3.ASM
................\h4ex03_2.LST
................\h4ex03_2.OBJ
................\h4ex03_2
................\h4ex03_2_Uv2.Bak
................\h4ex03_2.Uv2
................\h4ex03_2_Opt.Bak
................\h4ex03_2.Opt
8255输出口的应用