微机课程设计之计数器

1一、课程设计的目的1、巩固和加深对微机原理及应用课程内容的认识和理解，提高应用水平；2、掌握汇编语言程序的编程方法；3、熟悉键盘控制和七段数码管的使用。二、课程设计的内容1.在显示器上显示六位十六进制数：567ABC。2将8个健按实验室要求定义健值，按任意键在显示器上显示对应键值，要求显示值能够实现左移功能：AB9346FC3.实现：a)定义键盘按键，13个为数字键3-F，3个功能键：加号+，除号，等号；b)可进行四位10进制加法运算；c)可进行四位16进制除法运算。三、课程设计应完成的工作1.搜集、整理和研究资料，可参考教材后的实例。2.按电路框图连接电路，编写程序完成各个程序设计要求，并完成调试。3.完成课程设计的报告书一份。四、课程设计进程安排序号设计各阶段内容地点起止日期1领取任务书实2-20410.142收集，整理资料图书馆、宿舍10.153上机编写调试程序实2-20410.15-10.174撰写课程设计报告宿舍10.182五、应收集的资料及主要参考文献发出任务书日期：2013年10月14日指导教师签名：计划完成日期：2013年10月18日基层教学单位责任人签章：主管院长签章：3目录一、源程序61程序一61.1题目61.2流程图61.3源程序62程序二72.1题目72.2流程图82.3源程序93程序三113.1题目113.2流程图123.3源程序11二、心得与体会19三、参考文献1941.程序一1.1在显示器上显示六位十六进制数：567ABC。1.2流程图.51.3源程序：STACKSEGMENTSTACKDW32DUP(?)STACKENDSDATASEGMENTSHUJUDB0FCH,06H,0DAH,0F2H,66H,0B6H,0BEH,0E0H；数码管的位选DB0FEH,0F6H,0EEH,3EH,9CH,7AH,9EH,8EH；设置0F的十六位数码管段码VA1DB0FEH,OFDH,0FBH,0F7H,0EFH,0DFFVA2DB05H,06H,07H,0AH,0BH,0CH；设置四位查询位DATAENDSCODESEGMENTASSUMECS:CODE,DS:DATA,SS：STACKSTART:MOVAX,DATAMOVDS,AXMOVDX,0606H6MOVAL,80H；8255初始化OUTDX,ALA:LEASI,VA2LEADI,VA1MOVCX,0006HA1:MOVDX,0600HMOVAL,0FFHOUTDX,ALMOVAL,DIMOVBX,OFFSETSHUJUXLATSHUJU；查表取出数码管的段码MOVDX,0604HOUTDX,ALMOVDX,0600H；查表的段码送A口显示MOVAL,SIOUTDX,ALCALLDALLYINCSIINCDILOOPA1JMPADALLY:PUSHCX；延时程序MOVCX,0001HA3:MOVAX,00FFHA4:DECAXJNZA4LOOPA3POPCXRETCODEENDSENDSTART2.程序一2.1题目：将8个健按实验室要求定义健值，按任意键在显示器上显示对应键值，要求显示值能够实现左移功能：AB9346FC2.2流程图.开始8255初始化是否按健显示扫描保存数据是否放键显示扫描NYNY72.3源程序：STACKSEGMENTSTACKDW32DUP(?)STACKENDSDATASEGMENTTABLEDB0FCH,06H,0DAH,0F2H,66H,0B6H,0BEH,0E0HDB0FEH,0F6H,0EEH,3EH,9CH,7AH,9EH,8EHVA1DB0FEH,OFDH,0FBH,0F7H,0EFH,0DFFVA2DB0FCH,0FCH,0FCH,0FCH,0FCH,0FCHVA3DB00H,00H,00H,00H,00H,00H,00HDATAENDSCODESEGMENTASSUMECS:CODE,DS:DATASTART:MOVAX,DATAMOVDS,AXMOVDX,0606HMOVAL,82HOUTDX,AL；8255初始化MOVBX,0000HSTT:MOVAL,00H；键盘测试MOVDX,0600HOUTDX,ALMOVDX,0602HINAL,DXANDAL,18HCMPAL,18HJNZKEYABCCALLDISP；调用显示程序JMPSTT；-KEYABC:CALLTIME；延时，去抖动MOVDX,0602HINAL,DXANDAL,18HCMPAL,18HJNZKEYJMPSTTKEY:MOVDX,0600HMOVAL,0FEH；键盘扫描识别OUTDX,ALMOVDX,0602HINAL,DXTESTAL,08HJNZKEY_7CALLKEY0JMPSTTKKEY_7:TESTAL,10HJNZKEY_2CALLKEY4JMPSTTKKEY_2:MOVDX,0600HMOVAL,0FDHOUTDX,ALMOVDX,0602HINAL,DXTESTAL,08HJNZKEY_6CALLKEY1JMPSTTKKEY_6:TESTAL,10HJNZKEY_1CALLKEY5JMPSTTKKEY_1:MOVDX,0600HMOVAL,0FBHOUTDX,ALMOVDX,0602HINAL,DXTESTAL,08HJNZKEY_58CALLKEY2JMPSTTKKEY_5:TESTAL,10HJNZKEY_0CALLKEY6JMPSTTKKEY_0:MOVDX,0600HMOVAL,0F7HOUTDX,ALMOVDX,0602HINAL,DXTESTAL,08HJNZKEY_4CALLKEY3JMPSTTKKEY_4:TESTAL,10HJNZKEY_C1CALLKEY7KEY_C1:JMPSTTK；-；按键0处理子程序KEY0:CALLLP1MOVAL,0EEHMOVSI+5,ALMOVAL,00HMOVDI+5,ALCALLDISP；显示RET；返回；-；按键1处理子程序KEY1:CALLLP1MOVAL,3EHMOVSI+5,ALMOVAL,01HMOVDI+5,ALCALLDISP；显示RET；返回；-；按键2处理子程序KEY2:CALLLP1MOVAL,0F6HMOVSI+5,ALMOVAL,02HMOVDI+5,ALCALLDISP；显示RET；返回；-；按键3处理子程序KEY3:CALLLP1MOVAL,0F2HMOVSI+5,ALMOVAL,03HMOVDI+5,ALCALLDISP；显示RET；返回；-；按键4处理子程序KEY4:CALLLP1MOVAL,66HMOVSI+5,ALMOVAL,04HMOVDI+5,ALCALLDISP；显示RET；返回；-；按键5处理子程序KEY5:CALLLP1MOVAL,0BEHMOVSI+5,ALMOVAL,05HMOVDI+5,ALCALLDISP；显示RET；返回；-；按键6处理子程序KEY6:CALLLP1MOVAL,8EHMOVSI+5,ALMOVAL,06HMOVDI+5,ALCALLDISP；显示RET；返回；-；按键7处理子程序KEY7:CALLLP1MOVAL,9CHMOVSI+5,AL9MOVAL,07HMOVDI+5,ALCALLDISP；显示RET；返回；-；数据移位保存子程序LP1:MOVSI,OFFSETVA2MOVDI,OFFSETVA3MOVCX,0005HLP2:MOVAL,SI+4MOVSI+5,ALMOVAL,DI+4MOVDI+5,ALDECSIDECDILOOPLP2RET；-；显示子程序DISP:MOVSI,OFFSETVA1MOVDI,OFFSETVA2MOVDL,DI+5CMPDL,0FCHJNZDIR5MOVDL,DI+4CMPDL,0FCHJNZDIR4MOVDL,DI+3CMPDL,0FCHJNZDIR3MOVDL,DI+2CMPDL,0FCHJNZDIR2MOVDL,DI+1CMPDL,0FCHJNZDIR1JMPDIR0DIR5：MOVCX,0006HJMPDIRDIR4：MOVCX,0005HJMPDIRDIR3：MOVCX,0004HJMPDIRDIR2：MOVCX,0003HJMPDIRDIR1：MOVCX,0002HJMPDIRDIR0：MOVCX,0001HDIR:MOVDX,0600HMOVAL,SIOUTDX,ALMOVDX,0604HMOVAL,DIOUTDX,ALCALLTIMEINCSIINCDILOOPDIRRET；-；延时程序TIME:PUSHAXPUSHCXMOVCX,0005HTIME1:MOVAX,00F0HTIME2:DECAXJNZTIME2LOOPTIME1POPCXPOPAXRET；-；放键测试程序STTK:CALLDISPMOVAL,00HMOVDX,0600HOUTDX,ALMOVDX,0602HINAL,DXANDAL,18HCMPAL,18HJNZSTTKJMPSTTCODEENDSENDSTART103.程序一3.1题目：实现：a)定义键盘按键，13个为数字键0-F，3个功能键：加号+，除号，等号；b)可进行四位10进制加法运算；c)可进行四位16进制除法运算。3.2流程图开始8255初始化有无压键显示扫描是数字键？标有志？加号？除号？设加好标志设除好标志清零显示器，清标志位保存数据放键？显示扫描清零显示器进行加、乘运算，存结果等号？YYYYYYYNNNNNN113.3源程序：STACKSEGMENTSTACKDW64DUP(?)STACKENDSDATASEGMENTVA1DB0DFH,0EFH,0F7H,0FDH,0FEH,VA2DB0FC,0FCH,0FCH,0FCH,0FCH,0FCH,0FCH,0FCH,0FCH,0FCHVAR3DB00H,00H,00H,00H,00H,00H,00H,00H,00H,00HVAR4DB00H,00H,00H,00H,00H,00H,00H,00H,00H,00HTABLDB0FCH,60H,0DAH,0F2H,66H,0B6H,0BEH,0FEH,0F6H,DB0EEH,3EH,9CH,7AH,9EH,8EHDATAENDSCODE：SEGMENTASSUMECS:CODE,DS,DATASTART:MOVAX,DATAMOVDS,AXMOVDX,0606HMOVAL,82HOUTDX,ALMOVBX,0000HSTT:MOVAL,00HMOVDX,0600HOUTDX,ALOUTDX,0602HINAL,DXANDAL,78HCMPAL,78HJNZKEYABCCALLDISPJMPSTTKEYABC:CALLTIMEMOVDX,0602HINAL,DXANDAL,78HCMPAL,78HJNZKEYJMPSTT;-第一列键盘扫描；按键键码确定程序,采用扫描法确定按键的键码KEY:MOVDX,0600HMOVAL,OFEHOUTDX,ALMOVDX,0602HINAL,DXTESTAL,08HJNZKEY_BCALLKEYFJMPSTTK12KEY_B:TESTAL,10HJNZKEY_7CALLKEYBJMPSTTKKEY_7:TESTAL,20HJNZKEY_JIACALLKEY7JMPSTTKKEY_JIA:TESTAL,40HJNZKEY_ECALLKEYABBJMPSTTK;-;第二列键盘扫描KEY_E:MOVDX,0600HMOVAL,OFDHOUTDX,ALMOVDX,0602HINAL,DXTESTAL,08HJNZKEY_ACALLKEYFJMPSTTKKEY_A:TESTAL,10HJNZKEY_6CALLKEYAJMPSTTKKEY_6:TESTAL,20HJNZKEY_JIACALLKEY6JMPSTTKKEY_2:TESTAL,40HJNZKEY_DCALLKEYCHUJMPSTTK;-;第三列键盘扫描KEY_D:MOVDX,0600HMOVAL,OFBHOUTDX,ALMOVDX,0602HINAL,DXTESTAL,08HJNZKEY_9CALLKEYDJMPSTTKKEY_9:TESTAL,10HJNZKEY_5CALLKEY9JMPSTTKKEY_5:TESTAL,20HJNZKEY_1CALLKEY5JMPSTTKKEY_1:TESTAL,40HJNZKEY_DCALLKEYDEN;等号JMPSTTK;-;第四列键盘扫描KEY_C:MOVDX,0600HMOVAL,OFBHOUTDX,ALMOVDX,0602HINAL,DXTESTAL,08HJNZKEY_8CALLKEY8JMPSTTKKEY_8:TESTAL,10HJNZKEY_4CALLKEY8JMPSTTKKEY_4:TESTAL,20HJNZKEY_3CALLKEY4JMPSTTKKEY_3:TESTAL,40HJNZKEY_CCALLKEYCHUJMPSTTKKEY_C1:JMPSTTK;-每一个子程序KEYF:CMPBH,00H；按键F处理子程序JZKEYF_1CALLCLEARKEYF_1:13CALLLP1MOVAL,8EHMOVSI+5,ALMOVAL,0FHMOVDI+5,ALCALLDISPRETKEYB:CMPBH,00H；按键B处理子程序JZKEYF_BCALLCLEARKEYB_1:CALLLP1MOVAL,3EHMOVSI+5,ALMOVAL,0BHMOVDI+5,ALCALLDISPRETKEY7:CMPBH,00H；按键7处理子程序JZKEY7_1CALLCLEARKEY7_1:CALLLP1MOVAL,0E0HMOVSI+5,ALMOVAL,07HMOVDI+5,ALCALLDISPRETKEYADD:CMPBH,00H；按键+处理子程序JZKEYADD_1CALLCLEARKEYADD_1:MOVBX,0101HRET;-每一个子程序KEYE:CMPBH,00H；按键E处理子程序JZKEYE_1CALLCLEARKEYE_1:CALLLP1MOVAL,9EHMOVSI+5,ALMOVAL,0EHMOVDI+5,ALCALLDISPRETKEYA:；按键A处理子程序CMPBH,00HJZKEYA_1CALLCLEARKEYA_1:CALLLP1MOVAL,0EEHMOVSI+5,ALMOVAL,0AHMOVDI+5,ALCALLDISPRETKEY6:CMPBH,00H；按键6处理子程序JZKEY7_1CALLCLEARKEY6_1:CALLLP1MOVAL,0BEHMOVSI+5,ALMOVAL,06HMOVDI+5,ALCALLDISPRETKEYCHU:CMPBH,00H；按键/处理子程序JZKEYADD_1CALLCLEARKEYCHU_1:MOVBX,0102HRET;-每一个子程序KEYD:CMPBH,00H；按键=处理子程序JZKEYD_1CALLCLEARKEYD_1:14CALLLP1MOVAL,7AHMOVSI+5,ALMOVAL,0DHMOVDI+5,ALCALLDISPRETKEY9:CMPBH,00H；按键9处理子程序JZKEYF_BCALLCLEARKEY9_1:CALLLP1MOVAL,0F6HMOVSI+5,ALMOVAL,09HMOVDI+5,ALCALLDISPRETKEY5:CMPBH,00H；按键5处理子程序JZKEY7_1CALLCLEARKEY5_1:CALLLP1MOVAL,0B6HMOVSI+5,ALMOVAL,05HMOVDI+5,ALCALLDISPRETKEYDEN:MOVBH,01H；按键=处理子程序CMPBL,01HJZK1CMPBL,02HJMPCLEAR；不进行运算时就清零STTE:RETK1:CALLADD1JMPSTTEK2:CALLCHUJMPSTTE;-每一个子程序KEYC:CMPBH,00H；按键C处理子程序JZKEYC_1CALLCLEARKEYC_1:CALLLP1MOVAL,9CHMOVSI+5,ALMOVAL,0CHMOVDI+5,ALCALLDISPRETKEY8:CMPBH,00H；按键8处理子程序JZKEYF_BCALLCLEARKEY8_1:CALLLP1MOVAL,0FEHMOVSI+5,ALMOVAL,08HMOVDI+5,ALCALLDISPRETKEY4:CMPBH,00H；按键4处理子程序JZKEY7_1CALLCLEARKEY4_1:CALLLP1MOVAL,66HMOVSI+5,ALMOVAL,04HMOVDI+5,ALCALLDISPRETKEY3:CMPBH,00H；按键3处理子程序JZKEY3_1CALLCLEARKEY3_1:CALLLP1MOVAL,0F2HMOVSI+5,ALMOVAL,03HMOVDI+5,ALCALLDISPRET;-；数据清零子程序15CLEAR:MOVSI,OFFSETVA2MOVDI,OFFSETVA3MOVCX,000AHCLEAR1:MOVAL,0FCHMOVSI,ALMOVAL,00HMOVDI,ALINCSIINCDILOOPCLEAR1MOVBH,00HRET;-;4位十六进制加法子程序ADD1:LEASI,DATA3LEADI,DATA4CLCMOVCX,0004HADD2:MOVAL,DIADDAL,SICMPAL,10HJLADD3SUBAL,10HMOVBL,01HADDDI+1,BLADD3:MOVDI,ALINCSIINCDILOOPADD2CALLCHANGECALLDISPRET;-；4位10进制除法子程序CHU:MOVSI,OFFSETVA3MOVDI,OFFSETVA4CLCMOVCL,04HMOVAL,DI+3SHLAL,CLADDAL,DI+2MOVAH,ALMOVAL,DI+1SHLAL,CLADDAL,DIMOVBL,SI+3SHLBL,CLADDBL,SI+2MOVBH,BLMOVBL,SI+1SHLBL,CLADDBL,SIXORDX,DXDIVDXMOVBX,AXANDBH,0F0HSHRBH,CLANDAH,0F0HSHRBL,CLANDAL,0F0HMOVDI+3,BHMOVDI+2,AHMOVDI+1,BLMOVDI,ALCALLCHANGECALLDISPRET;-CHANGE:MOVSI,OFFSETVA2MOVDI,OFFSETVA4MOVBX,OFFSETTABLMOVCX,0006HCOMP0:MOVAL,DIXLATMOVSI,ALINCSIINCDILOOPCOMP0RET;-；保存上一次数据子程序LP3:MOVCX,0006HMOVSI,OFFSETVA3MOVDI,OFFSETVA4LP4:MOVAL,SIMOVDI,AL16INCSIINCDILOOPLP4RET;-；显示子程序DISP:MOVSI,OFFSETVA1MOVDI,OFFSETVA2MOVDL,DI+5CMPDL,0FCHJNZDIR5MOVDL,DI+4CMPDL,0FCHJNZDIR4MOVDL,DI+3CMPDL,0FCHJNZDIR3MOVDL,DI+2CMPDL,0FCHJNZDIR2MOVDL,DI+1CMPDL,0FCHJNZDIR1JMPDIR0JMPDIR0DIR5:MOVCX,0006HJMPDIRDIR4:MOVCX,0005HJMPDIRDIR3:MOVCX,0004HJMPDIRDIR2:MOVCX,0003HJMPDIRDIR1:MOVCX,0002HJMPDIRDIR0:MOVCX,0001HDIR:MOVAL,SIOUT60H,ALMOVA