chengxu
代码说明：
微机系统与接口学习使用的一些测试程序，测试芯片的使用。(Some computer systems interface testing program to learn to use, the test chip to use.)
文件列表：
程序
....\0809_crt.asm,954,2008-12-11
....\0809_io.asm,1084,2008-12-11
....\0832_sawtooth .asm,531,2008-12-11
....\0832_sinewave.asm,902,2008-12-11
....\244_input.asm,658,2008-12-11
....\273_output.asm,584,2011-04-26
....\8251.asm,1943,2008-12-11
....\8253_Buzzer.asm,1038,2008-12-01
....\8253_count.asm,1100,2008-12-11
....\8253_timer.asm,839,2008-12-11
....\8253_timer.exe,665,2011-05-30
....\8253_timer.obj,223,2011-05-30
....\8255_8253_timer.asm,1698,2011-05-30
....\8255_8253_timer.exe,751,2011-05-30
....\8255_8253_timer.obj,337,2011-05-30
....\8255_count.asm,1903,2011-05-30
....\8255_count.exe,783,2011-05-30
....\8255_count.obj,391,2011-05-30
....\8255_int_in.ASM,3446,2008-12-11
....\8255_int_out.asm,3126,2008-12-11
....\8255_io.asm,806,2008-12-11
....\8255_led_d.asm,1448,2008-12-11
....\8255_led_s.asm,1049,2008-12-11
....\8255_light.asm,1960,2008-12-11
....\add.asm,643,2008-12-07
....\decode.asm,582,2015-04-14
....\int.asm,2419,2008-12-01
....\num.asm,1787,2008-12-06
....\portr.ASM,3890,2004-12-01
....\portr.exe,1079,2012-04-24
....\string.asm,1036,2008-12-07
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