[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f711CnidAZVIxQHGr2mL_Z0AkIbw9702nJGZz7duDtUM":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":8,"question":15,"related":16,"source":23,"type":24},[],"2023-12-15 18:49:50",114411989,[],{"count":9,"courseId":10,"courseImg":11,"courseName":12,"workId":13,"workName":14},12,"ecb4acdc9a0043e610608e91d461ad05","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F97c3ad9521a43a588e85f8626fcba7aa.jpeg","微机原理与接口技术2023","45f2ea94605c4d138a9ca83d7ad55ffc","7-2","【填空题】某系统中设置三片8259A级联使用,一片为主8259A;两片为从8259A;它们分别接入主8259A的IR2和IR6端.若已知当前主8259A和从8259A的IR3上各接有一个外部中断源,各芯片的IR0中断类型码分别为A0H,B0H和C0H,已知它们的中断入口均在同一段中,其段基址为2050H,偏移地址分别为11A0H,22B0H和33C0H,所有中断都采用电平触发方式、完全嵌套、普通EOI结束,请补充完整主片初始化程序.START: MOV AL ,____ MOV DX,偶地址(主) OUT DX,AL MOV AL,____ MOV DX,奇地址(主) OUT DX,AL MOV AL,____ OUT DX,AL MOV AL,____ OUT DX,AL",[17,25,31,34,40,45,51,57,62,68],{"answer":18,"createTime":19,"id":20,"options":21,"question":22,"source":23,"type":24},[],"2025-11-22 20:39:41",114411985,[],"编一系统初始化程序,由8259A的IR0~IR4共五个中断源,中断类型码为4BH,4CH,4DH,4EH,4FH.8259A端口地址为80H、81H.中断边沿触发,允许它们以完全嵌套方式工作. STT: MOV AL,____ OUT 80H ,AL MOV AL,____ OUT 81H,AL MOV AL,____ OUT DX,AL MOV AL,____ OUT DX,AL","v1",2,{"answer":26,"createTime":27,"id":28,"options":29,"question":30,"source":23,"type":24},[],"2025-12-01 00:37:32",114411987,[],"通过8259A产生中断使8255A的端口A经过反相驱动器连接一共阴极七段发光二极管显示器;端口B是中断方式的输入口.设8259A的中断类型码基值是32H.中断请求信号为边沿触发方式,采用中断自动结束方式、全嵌套且工作在非缓冲方式,试完成8259A的初始化编程.MOV AL,0001011B OUT ____,AL MOV AL,00110010B OUT ____,AL MOV AL,00010011B OUT ____,AL",{"answer":32,"createTime":5,"id":6,"options":33,"question":15,"source":23,"type":24},[],[],{"answer":35,"createTime":36,"id":37,"options":38,"question":39,"source":23,"type":24},[],"2023-12-15 19:24:57",114423592,[],"【填空题】分析程序功能,回答问题MESS DB 'PRESS ANY KEY',0DH,0AH,'$' MOV AH,09 MOV DX,SEG MESS MOV DS,DX MOV DX,OFFSET MESSINT 21H 该程序调用了____系统功能调用,中断号为____,该功能的入口参数为DS :____(填写寄存器)",{"answer":41,"createTime":36,"id":42,"options":43,"question":44,"source":23,"type":24},[],114423593,[],"【填空题】试写出单片的初始化程序,条件是:\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F833bf0760eee3126fbe3d4f1e425668b.png\">的中断类型号是18H;中断请求信号采用电平触发方式;与系统数据总线的连接方式是缓冲方式;采用一般中断结束命令.已知的端口地址是20H和21H.CLIMOV AL, ____BOUT ____H, AL MOV AL,____BOUT ____H,AL MOV AL,____BOUT 21H,AL MOV AL,____BOUT 21H,ALMOV AL,____BOUT 20H,AL",{"answer":46,"createTime":47,"id":48,"options":49,"question":50,"source":23,"type":24},[],"2024-01-01 14:58:27",125053797,[],"【填空题】分析程序功能,回答问题MOV AH,2MOV DL,1INT 21H 该程序调用的功能号为____,该功能的入口参数为____(填写寄存器)",{"answer":52,"createTime":53,"id":54,"options":55,"question":56,"source":23,"type":24},[],"2024-01-01 15:29:56",125067544,[],"【填空题】分析程序功能,回答问题MESSAGE DB 'Enter new time $'::MOV AH,9MOV DX,SEG MESSAGEMOV DS,DXMOV DX,OFFSET MESSAGEINT 21H该程序执行完后,屏幕上会出现____",{"answer":58,"createTime":19,"id":59,"options":60,"question":61,"source":23,"type":24},[],167126853,[],"分析程序功能,回答问题MOV AH,2MOV DL,1INT 21H 该程序调用的功能号为____,该功能的入口参数为____(填写寄存器)",{"answer":63,"createTime":64,"id":65,"options":66,"question":67,"source":23,"type":24},[],"2025-12-19 14:59:05",167126854,[],"某系统中设置三片8259A级联使用,一片为主8259A;两片为从8259A;它们分别接入主8259A的IR2和IR6端.若已知当前主8259A和从8259A的IR3上各接有一个外部中断源,各芯片的IR0中断类型码分别为A0H,B0H和C0H,已知它们的中断入口均在同一段中,其段基址为2050H,偏移地址分别为11A0H,22B0H和33C0H,所有中断都采用电平触发方式、完全嵌套、普通EOI结束,请补充完整主片初始化程序.START: MOV AL ,____ MOV DX,偶地址(主) OUT DX,AL MOV AL,____ MOV DX,奇地址(主) OUT DX,AL MOV AL,____ OUT DX,AL MOV AL,____ OUT DX,AL",{"answer":69,"createTime":19,"id":70,"options":71,"question":72,"source":23,"type":24},[],167126855,[],"分析程序功能,回答问题MESS DB 'PRESS ANY KEY',0DH,0AH,'$' MOV AH,09 MOV DX,SEG MESS MOV DS,DX MOV DX,OFFSET MESSINT 21H 该程序调用了____系统功能调用,中断号为____,该功能的入口参数为DS :____(填写寄存器)"]