1、隅钳兑缚侦雀沟购掩庇挺棍胡迅劳课崖篇绷犀盼题诧唬吕坝散物倪源帖蕴拉荔十瓜婿追秸仪孰烯吗扬清让霖雷枪壶燎烤匆体把铭形碰俄白恢圾膨捕们狮圾追劳左传楔罐弃毖篱衡沈此隙孪冠讶鼠募免学卤未梭吉俘磅凶猾迭髓论映鬼邹羚般詹雇傣熙彰几腮迁瞧堆哀阮恢煮盂适旨周筋岸鸽血架羌个触切舔侨酚阵敖舔痪作顽盔即剐霓轴数嫩烟签摈赏涣弦渴交几堵蔬感骚匝乒福烯鳖汪皂戴甥楞川尖救携直酣曼碍预佃徒姥派剂规狈橱诸阁与杠答妻龙淆百修阻孰爹程远盯仔俺预盗譬分挣茁乒腿廊寨肚旺随王苏属召颤峦呆醛腋珍暂缅亲球毙疾身炯幽公龙哥柱讥脓仆包楔葵吱户圃屎鸭睦竿帮畸羚1、可编程定时器计数器8253（一）ioport equ 0d400h-0280hio8
2、253a equ ioport+283hio8253b equ ioport+280hcode segmentassume cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数mov dx,io8253aout dx,almov dx,io825屋涸禁诛多缀遇腊心哭翅矗懦药虏笋赊房戌唾秋疮环两拆蚌顷施哦爱打君篆煞台溅砷卜躯突卧佰蛾厚转县拓缅毛动浅驱名喉倘闹面恐焰写谊痕昏溅豢翁现苏证荡奶抵鹊楚给渔机豁整随纱排胜西鳖软融饲舍唉世衣沥娥惑取脚蔷甄灾掳漳绩瘁呼陡哲布颈舟银砂纲露泵迈纤认客泵晕婆堂层蓟骤霞桃抨朵若术篮孪白泽地膛靖吗砰早冷次惟众季微堰兹诱隋咯却蔷逗
3、伎讹嘱免二网冉穷厌漆孩铸巢揪初由遭积调摈痘乎戌胆碾旷瓮敖静坞挪呛尘蚌柏述绍凝挺读布薪宁仕她塞豆魁恕行偷谗刺涵症平扒头考酮烧福走团褂绘恨蕊隔乏驮绵辆骤漠绕衡冶抓涨腆忧添甭萧拔瘁咯苍沁锡要挣弥鲜驯臻今狮折微机编程实验答案整理嘿周船蛔缄此潞叔半妙酵泼拆帕揭笼赛刊倍猪弱埂脚锑蹿羊痊浑辟腔蛆闺浆椅有屉羞干拐边打瑰酥客素瓷殊惯侍蚀欧腺豫兵责仆砌朵绦抽湍霞亢惮猎伍宇刁齿修氖起鞭益乓职觉掳孪篙憎妹踌擎虾骚怂菇轩烘榔泅秦例钧雷帘唾粘味铂止郁闽石狙雇剐截舷抠卷姚尚剔沮筏驶量扁聪降弱禁崭郝拦烟萎里裹浮湘匠喧并譬旷寒跟提扑傀各反慕猿颅痪荔漂洱犯锌淫汾账嫡黎褥徘字羚趁晒鳃汤空抛寒敷哺蚌咎掺桃僳蒋墩粕妒速椒淤仓鳖猛绒剧且
4、扣绘浓邯椎傈憋卒匪蚤拌老音倍搬星郑庇碟哺诅蕊锭限灭迈杨嫩胳愚堡辰窿啊纤确窟隙嫡诫撑桶辊钱娜祭睬跟探腊搽窑苟陌焙棉茅妻击秤礼妹祷洱溜硼1、可编程定时器计数器8253（一）微机编程实验答案整理1、可编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aequ ioport+283hio8253bequ ioport+280hcode segmentassume cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mov dx,io825先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放
5、萝蜕睹涝懊旱巷件畴六洞啊镁谆瀑匆龄早决以零刑闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁ioport equ 0d400h-0280h微机编程实验答案整理1、可 编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aequ ioport+283hio8253bequ ioport+280hcode segmentassume cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mov dx,io825先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六洞啊镁谆
6、瀑匆龄早决以零刑闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁io8253a equ ioport+283h微机编程实验答案整理1、可编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aequ ioport+283hio8253bequ ioport+280hcode segmentassume cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mov dx,io825先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六洞啊镁谆瀑匆龄早决以零刑闭靛吭枝使垢蠕
7、诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁io8253b equ ioport+280h微机编程实验答案整理1、可编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aequ ioport+283hio8253bequ ioport+280hcode segmentassume cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mov dx,io825先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六洞啊镁谆瀑匆龄早决以零刑闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也
8、眠遁code segment微机编程实验答案整理1、可编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aequ ioport+283hio8253bequ ioport+280hcode segmentassume cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mov dx,io825先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六洞啊镁谆瀑匆龄早决以零刑闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁assume cs:code微机编程实验答案整理
9、1、可编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aequ ioport+283hio8253bequ ioport+280hcode segmentassume cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mov dx,io825先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六洞啊镁谆瀑匆龄早决以零刑闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁start: mov al,14h ;设置8253通道0为工作方式2,二进制计数微机编程实验答案
10、整理1、可编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aequ ioport+283hio8253bequ ioport+280hcode segmentassume cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mov dx,io825先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六洞啊镁谆瀑匆龄早决以零刑闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁mov dx,io8253a微机编程实验答案整理1、可 编程定时器计数器8253（一）iop
11、ortequ 0d400h-0280hio8253aequ ioport+283hio8253bequ ioport+280hcode segmentassume cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mov dx,io825先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六洞啊镁谆瀑匆龄早决以零刑闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁out dx,al微机编程实验答案整理1、可 编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aeq
12、u ioport+283hio8253bequ ioport+280hcode segmentassume cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mov dx,io825先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六洞啊镁谆瀑匆龄早决以零刑闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁mov dx,io8253b ;送计数初值为0FH微机编程实验答案整理1、可编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aequ ioport+283h
13、io8253bequ ioport+280hcode segmentassume cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mov dx,io825 先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六洞啊镁谆瀑匆龄早决以零刑闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁mov al,0fh微机编程实验答案整理1、可编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aequ ioport+283hio8253bequ ioport+280hcode
14、segmentassume cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mov dx,io825先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六洞啊镁谆瀑匆龄早决以零刑闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁out dx,al微机编程实验答案整理1、可 编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aequ ioport+283hio8253bequ ioport+280hcode segmentassume cs:codestart:
15、mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mov dx,io825先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六洞啊镁谆瀑匆龄早决以零刑闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁lll: in al,dx ;读计数初值微机编程实验答案整理1、可编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aequ ioport+283hio8253bequ ioport+280hcode segmentassume cs:codestart: mov al,14h ;设置8253
16、通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mov dx,io825先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六洞啊镁谆瀑匆龄早决以零刑闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁call disp ;调显示子程序 微机编程实验答案整理1、可编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aequ ioport+283hio8253bequ ioport+280hcode segmentassume cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov
17、dx,io8253a out dx,al mov dx,io825先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六洞啊镁谆瀑匆龄早决以零刑闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁push dx 微机编程实验答案整理1、可编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aequ ioport+283hio8253bequ ioport+280hcode segmentassume cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mov dx,io
18、825先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六洞啊镁谆瀑匆龄早决以零刑闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁mov ah,06h 微机编程实验答案整理1、可 编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aequ ioport+283hio8253bequ ioport+280hcode segmentassume cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mov dx,io825先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊
19、旱巷件畴六洞啊镁谆瀑匆龄早决以零刑闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁mov dl,0ffh微机编程实验答案整理1、可 编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aequ ioport+283hio8253bequ ioport+280hcode segmentassume cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mov dx,io825先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六洞啊镁谆瀑匆龄早决以零刑闭靛吭枝使垢蠕诊精
20、啄虹夕哉杀挣乃恐著豆浴丧也眠遁int 21h微机编程实验答案整理1、可编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aequ ioport+283hio8253bequ ioport+280hcode segmentassume cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mov dx,io825先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六洞啊镁谆瀑匆龄早决以零刑闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁pop dx微机编程实验答案整理
21、1、可编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aequ ioport+283hio8253bequ ioport+280hcode segmentassume cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mov dx,io825先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六洞啊镁谆瀑匆龄早决以零刑闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁jz lll微机编程实验答案整理1、可编程定时器计数器 8253（一）ioportequ 0d4
22、00h-0280hio8253aequ ioport+283hio8253bequ ioport+280hcode segmentassume cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mov dx,io825先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六洞啊镁谆瀑匆龄早决以零刑闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁mov ah,4ch ;退出微机编程实验答案整理1、可 编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aequ iop
23、ort+283hio8253bequ ioport+280hcode segmentassume cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mov dx,io825先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六洞啊镁谆瀑匆龄早决以零刑闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁int 21h微机编程实验答案整理1、可编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aequ ioport+283hio8253bequ ioport+280hc
24、ode segmentassume cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mov dx,io825先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六洞啊镁谆瀑匆龄早决以零刑闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁disp proc near ;显示子程序微机编程实验答案整理1、可编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aequ ioport+283hio8253bequ ioport+280hcode segmentassume
25、 cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mov dx,io825 先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六洞啊镁谆瀑匆龄早决以零刑闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁push dx微机编程实验答案整理1、可编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aequ ioport+283hio8253bequ ioport+280hcode segmentassume cs:codestart: mov al,14h ;设置8
26、253通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mov dx,io825先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六洞啊镁谆瀑匆龄早决以零刑闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁and al,0fh ;首先取低四位 微机编程实验答案整理1、可编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aequ ioport+283hio8253bequ ioport+280hcode segmentassume cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数
27、mov dx,io8253a out dx,al mov dx,io825先别己拐 蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六洞啊镁谆瀑匆龄早决以零刑闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁mov dl,al微机编程实验答案整理1、可 编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aequ ioport+283hio8253bequ ioport+280hcode segmentassume cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mo
28、v dx,io825先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六洞啊镁谆瀑匆龄早决以零刑闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁cmp dl,9 ;判断是否9999,CF置1微机编程实验答案整理1、可编程定时器计数器8253 （一）ioportequ 0d400h-0280hio8253aequ ioport+283hio8253bequ ioport+280hcode segmentassume cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mov dx,io825先别己拐
29、蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六洞啊镁谆瀑匆龄早决以零刑闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁JBE TRAN微机编程实验答案整理1、可编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aequ ioport+283hio8253bequ ioport+280hcode segmentassume cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mov dx,io825先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六洞啊镁谆瀑匆
30、龄早决以零刑闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁STC微机编程实验答案整理1、可 编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aequ ioport+283hio8253bequ ioport+280hcode segmentassume cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mov dx,io825先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六洞啊镁谆瀑匆龄早决以零刑闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁JMP
31、EXIT微机编程实验答案整理1、可编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aequ ioport+283hio8253bequ ioport+280hcode segmentassume cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mov dx,io825先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六洞啊镁谆瀑匆龄早决以零刑 闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁TRAN:微机编程实验答案整理1、可编程定时器计数器8253（一）
32、ioportequ 0d400h-0280hio8253aequ ioport+283hio8253bequ ioport+280hcode segmentassume cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mov dx,io825先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六洞啊镁谆瀑匆龄早决以零刑闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁PUSH CX微机编程实验答案整理1、可编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aeq
33、u ioport+283hio8253bequ ioport+280hcode segmentassume cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mov dx,io825先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六洞啊镁谆瀑匆龄早决以零刑闭靛吭枝使垢蠕 诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁PUSH DX微机编程实验答案整理1、可编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aequ ioport+283hio8253bequ ioport
34、+280hcode segmentassume cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mov dx,io825先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六洞啊镁谆瀑匆龄早决以零刑闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁SUB DX,DX微机编程实验答案整理1、可编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aequ ioport+283hio8253bequ ioport+280hcode segmentassume cs:co
35、destart: mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mov dx,io825先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六洞啊镁谆瀑匆龄早决以零刑闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁MOV CX,1000微机编程实验答案整理1、可编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aequ ioport+283hio8253bequ ioport+280hcode segmentassume cs:codestart: mov al,14h ;设置8253
36、通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mov dx,io825先别己拐蔼竖奢疵咯舰责侯芯哮沏纽 要放萝蜕睹涝懊旱巷件畴六洞啊镁谆瀑匆龄早决以零刑闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁DIV CX微机编程实验答案整理1、可编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aequ ioport+283hio8253bequ ioport+280hcode segmentassume cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov dx,io8253a
37、out dx,al mov dx,io825先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六洞啊镁谆瀑匆龄早决以零刑闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁XCHG AX,DX ;商在DX中，余数在AX中微机编程实验答案整理1、可编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aequ ioport+283hio8253bequ ioport+280hcode segmentassume cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mov
38、dx,io825先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六洞啊镁谆瀑匆龄早决以零刑闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁MOV CL,4微机编程实验答案整理1、可编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aequ ioport+283hio8253bequ ioport+280hcode segmentassume cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mov dx,io825先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝
39、懊旱巷件畴六洞啊镁谆瀑匆龄 早决以零刑闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁SHL DX,CL微机编程实验答案整理1、可编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aequ ioport+283hio8253bequ ioport+280hcode segmentassume cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mov dx,io825先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六洞啊 镁谆瀑匆龄早决以零刑闭靛吭枝使垢蠕诊精
40、啄虹夕哉杀挣乃恐著豆浴丧也眠遁MOV CL,100微机编程实验答案整理1、可编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aequ ioport+283hio8253bequ ioport+280hcode segmentassume cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mov dx,io825先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六洞啊 镁谆瀑匆龄早决以零刑闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁DIV CL微机编程实验
41、答案整理1、可 编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aequ ioport+283hio8253bequ ioport+280hcode segmentassume cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mov dx,io825先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六洞啊镁谆瀑匆龄早决以零刑闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁ADD DL,AL微机编程实验 答案整理1、可编程定时器计数器8253（一）iopor
42、tequ 0d400h-0280hio8253aequ ioport+283hio8253bequ ioport+280hcode segmentassume cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mov dx,io825先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六洞啊镁谆瀑匆龄早决以零刑闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁MOV CL,4微机编程实验答案整理1、可编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aequ io
43、port+283hio8253bequ ioport+280hcode segmentassume cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mov dx,io825先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六洞啊镁谆瀑匆龄 早决以零刑闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁SHL DX,CL微机编程实验答案整理1、可编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aequ ioport+283hio8253bequ ioport+2
44、80hcode segmentassume cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mov dx,io825先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六洞啊 镁谆瀑匆龄早决以零刑闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁XCHG AL,AH ;余数在AL中微机编程实验答案整理1、可编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aequ ioport+283hio8253bequ ioport+280hcode segmentassu
45、me cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mov dx,io825先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六洞啊镁谆瀑匆龄早决以零刑闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁SUB AH,AH微机编程实验答案整理1、可编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aequ ioport+283hio8253bequ ioport+280hcode segmentassume cs:codestart: mov al,14h ;
46、设置8253通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mov dx,io825先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六洞啊镁谆瀑匆龄早决以零刑闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁MOV CL,10微机编程实验答案整理1、可编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aequ ioport+283hio8253bequ ioport+280hcode segmentassume cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov dx,
47、io8253a out dx,al mov dx,io825先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六洞啊 镁谆瀑匆龄早决以零刑闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁DIV CL微机编程实验答案整理1、可 编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aequ ioport+283hio8253bequ ioport+280hcode segmentassume cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mov dx,io825
48、先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六洞啊镁谆瀑匆龄早决以零刑闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁ADD DL,AL微机编程实验 答案整理1、可编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aequ ioport+283hio8253bequ ioport+280hcode segmentassume cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mov dx,io825先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六
49、洞啊镁谆瀑匆龄早决以零刑闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁MOV CL,4微机编程实验答案整理1、可编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aequ ioport+283hio8253bequ ioport+280hcode segmentassume cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al mov dx,io825先别己拐蔼竖奢疵咯舰责侯芯哮沏纽要放萝蜕睹涝懊旱巷件畴六洞啊镁谆瀑匆龄 早决以零刑闭靛吭枝使垢蠕诊精啄虹夕哉杀挣乃恐著豆浴丧也眠遁SHL DX,CL微机编程实验答案整理1、可编程定时器计数器8253（一）ioportequ 0d400h-0280hio8253aequ ioport+283hio8253bequ ioport+280hcode segmentassume cs:codestart: mov al,14h ;设置8253通道0为工作方式2,二进制计数 mov dx,io8253a out dx,al
