汇编_8086作业
D:/www_local/asm/test/test10.asm
D:/www_local/asm/test/test10_1.asm
D:/www_local/asm/test/test8.asm
D:/www_local/asm/test/test8_0.asm
D:/www_local/asm/test/test9.asm
D:/www_local/asm/test/test9_1.asm
d:/www_local/asm/0.asm
d:/www_local/asm/1.asm
d:/www_local/asm/2.asm
d:/www_local/asm/3.asm
d:/www_local/asm/4.asm
d:/www_local/asm/5.asm
d:/www_local/asm/6.asm
d:/www_local/asm/7.asm
d:/www_local/asm/8.asm
d:/www_local/asm/9.asm
d:/www_local/asm/10.asm
d:/www_local/asm/11.asm
d:/www_local/asm/12.asm
D:/www_local/asm/test/131.asm
d:/www_local/asm/13.asm
d:/www_local/asm/14.asm
d:/www_local/asm/15.asm
d:/www_local/asm/16.asm
d:/www_local/asm/17.asm
d:/www_local/asm/18.asm
d:/www_local/asm/19.asm
d:/www_local/asm/20.asm
d:/www_local/asm/21.asm
d:/www_local/asm/22.asm
d:/www_local/asm/23.asm
d:/www_local/asm/24.asm
d:/www_local/asm/25.asm
d:/www_local/asm/26.asm
d:/www_local/asm/27.asm
d:/www_local/asm/28.asm
d:/www_local/asm/29.asm
d:/www_local/asm/30.asm
d:/www_local/asm/31.asm
d:/www_local/asm/32.asm
d:/www_local/asm/33.asm
assume cs:codesg,ds:datasg datasg segment db 'welcome to masm!',0 ;以零结尾 ;db 4ah,71h,0cah ;定义3重颜色 datasg ends codesg segment start: mov ax,datasg mov ds,ax mov dh,2 ;在第8行显示 mov dl,0 ;在第3列显示 mov cl,71h ;定义颜色 mov si,0 ;si指向字符串 ;==========关联=============== call show_str mov ax,4c00h int 21h show_str:mov bx,0 mov ax,0b800h ;指向现存段 mov es,ax mov al,160 ;8 bit mul dh ;8 bit result in ax add bx,ax mov al,2 ;8 bit mov ah,0 mul dl ;8 bit result in ax add bx,ax ;bx存放的是显示的偏移地址 s: ;mov bl,71h ;由于cx要循环判断，所以颜色用bl记录 mov cl,ds:[si] ;第八位存放字符串 mov ch,0 jcxz game_over ;如果cx为0即遇到结束符号，返回 ;如果不为零，在指定位置显示 mov byte ptr es:[bx+di],cl ;先写ascii mov byte ptr es:[bx+1+di],0cah ;再写颜色属性 add di,2 ;指向下个显示位置 inc si ;指向下个字符串 jmp short s game_over:ret codesg ends end start
D:/www_local/asm/test/test10_1.asm
assume cs:codesg,ss:stacksg stacksg segment db 16 dup(0) stacksg ends ;计算1000000/10 即000f4240h 000ah codesg segment start: mov ax,stacksg mov ss,ax mov sp,10h mov dx,000fh ;被除数的高十六位 mov ax,4240h ;被除数的low十六位 mov cx,000ah ;十六位的除数 call divdw mov ax,4c00h int 21h divdw: ;先要把被除数的低十六位保存计算高十六位 push ax mov ax,dx mov dx,0 div cx ;以上3句是先除高位结果dx为余数AX为商 mov bx,ax ;将商先缓存 pop ax ;将ax还原为被除数的第十六位 div cx ;高十六位dx是前面的余数 此时余数存放于dx 商放于ax mov cx,dx ;将余数转到cx中 mov dx,bx ;将高十六� 位除后的商放入dx� ret codesg ends end start
D:/www_local/asm/test/test8.asm
assume cs:codesg codesg segment mov ax,4c00h int 21h start: mov ax,0 s: nop nop mov si,offset s2 mov ax,cs:[si] mov di,offset s mov cs:[di],ax ;上面4句实现了将s2处的机器码复制到s处替换掉nop nop s0: jmp short s s1: mov ax,0FFFFh int 21h mov ax,0ffffh s2: jmp short s1 ;jmp记录着便宜距离 codesg ends end start
D:/www_local/asm/test/test8_0.asm
assume cs:codesg
codesg segment
mov ax,4c00h
int 21h
start: mov ax,0
s: nop ;占一字节,机器码90
nop
mov di,offset s
mov si,offset s2
mov ax,cs:[si] ;(ax)=jmp short s1指令对应的机器码EBF6
mov cs:[di],ax ;jmp short s1覆盖s处指令2条nop指令
s0: jmp short s ;关键是机器码：EBF6 jmp 向上8字节
s1: mov ax,0
int 21h
mov ax,0
s2: jmp short s1
nop
codesg ends
end start
D:/www_local/asm/test/test9.asm
assume cs:codesg,ds:datasg,ss:stacksg datasg segment db 'welcome to masm!' ;16个字节 db 4ah,71h,0cah ;定义3重颜色 datasg ends stacksg segment db 16 dup(0) stacksg ends codesg segment start: mov ax,datasg mov ds,ax mov ax,0b884h ;b800是duan b884h是中间哪行 mov es,ax ;要写的目的 mov ax,stacksg mov ss,ax mov sp,10h ;==========关联=============== mov di,0 ;控制显示3行 每次递增a0h mov cx,3 ;控制显示3行 flag2: push cx mov bx,0 ;控制写出16个字符一个字符占两个字节（ASCII和属性） mov si,0 ;控制读取16个字节 mov cx,16 flag: mov al,[si] mov byte ptr es:[bx+di].0b0h,al ;先写ascii mov al,10h[di] ;读取颜色 mov byte ptr es:[bx+di].0b1h,al ;再写颜色属性 add bx,2 add si,1 loop flag pop cx add di,0a0h ;转到下一行 即跳过80乘以2等于160个字节 loop flag2 mov ax,4c00h int 21h codesg ends end start
D:/www_local/asm/test/test9_1.asm
assume cs:codesg codesg segment start: mov ax,0b810h ;b800是第一行 现在是第二行 mov ds,ax mov bx,0 mov byte ptr [bx],01h inc bx mov byte ptr [bx],01h inc bx mov byte ptr [bx],02h inc bx mov byte ptr [bx],02h mov ax,4c00h int 21h codesg ends end start
d:/www_local/asm/0.asm
assume cs:abc
abc segment
mov ax,1234h
mov ax,4c00h
int 21h
abc ends
end
d:/www_local/asm/1.asm
assume cs:abc
abc segment
start: mov ax,1234h
mov bx,5678h
add ax,1111h
mov ax,4c00h
int 21h
abc ends
end start
d:/www_local/asm/2.asm
assume cs:abc
abc segment
start: mov ax,2h
mov cx,11
flag: add ax,ax
loop flag
mov ax,4c00h
int 21h
abc ends
end start
d:/www_local/asm/3.asm
assume cs:abc
abc segment
start: mov ax,0ffffh
mov ds,ax
mov bx,6
mov dx,0
mov al,[bx]
mov ah,0
mov cx,3
flag: add dx,ax
loop flag
mov ax,4c00h
int 21h
abc ends
end start
d:/www_local/asm/4.asm
assume cs:abc
abc segment
start: mov ax,0ffffh
mov ds,ax
mov al,ds:[0]
mov bl,ds:[1]
mov cl,ds:[2]
mov dl,ds:[3]
mov ax,4c00h
int 21h
abc ends
end start
d:/www_local/asm/5.asm
assume cs:abc
abc segment
start: mov bx,0
mov ax,0ffffh
mov ds,ax
mov ax,0020h
mov es,ax
mov cx,12
flag: mov al,ds:[bx]
mov es:[bx],al
inc bx
loop flag
mov ax,4c00h
int 21h
abc ends
end start
d:/www_local/asm/6.asm
assume cs:abc
abc segment
start: mov bx,0
mov ax,0ffffh
mov ds,ax
mov dx,0
mov cx,12
flag: mov al,ds:[bx]
mov ah,0
add dx,ax
inc bx
loop flag
mov ax,4c00h
int 21h
abc ends
end start
d:/www_local/asm/7.asm
assume cs:abc
abc segment
dw 0123H,0456H,0789H,1111H,1111H,1111H,1111H,1111H
start: mov ax,0
mov bx,0
mov cx,8
flag: add ax,cs:[bx]
add bx,2
loop flag
mov ax,4c00h
int 21h
abc ends
end start
d:/www_local/asm/8.asm
assume cs:abc
abc segment
dw 0123H,0456H,0789H,1111H,1111H,1111H,1111H,1111H
dw 0h,0h,0h,0h,0h,0h,0h,0h
start: mov ax,cs
mov ss,ax
mov sp,20h
mov bx,0
mov cx,8
flag: push cs:[bx]
add bx,2
loop flag
mov bx,0
mov cx,8
flag2: pop cs:[bx]
add bx,2
loop flag2
mov ax,4c00h
int 21h
abc ends
end start
d:/www_local/asm/9.asm
assume cs:codesg,ds:datasg,ss:stacksg
datasg segment
dw 0123H,0456H,0789H,1111H,1111H,1111H,1111H,1111H
datasg ends
stacksg segment
dw 0h,0h,0h,0h,0h,0h,0h,0h
stacksg ends
codesg segment
entry: mov ax,datasg
mov ds,ax
mov ax,stacksg
mov ss,ax
mov sp,20h
mov bx,0
mov cx,8
flag: push [bx]
add bx,2
loop flag
mov bx,0
mov cx,8
flag2: pop [bx]
add bx,2
loop flag2
mov ax,4c00h
int 21h
codesg ends
end entry
d:/www_local/asm/10.asm
assume cs:codesg,ds:datasg,ss:stacksg
datasg segment
dw 0123H,0456H,0789H,1111H,1111H,1111H,1111H,1111H
datasg ends
stacksg segment
dw 0h,0h,0h,0h,0h,0h,0h,0h
stacksg ends
codesg segment
entry: mov ax,stacksg
mov ss,ax
mov sp,10h
mov ax,datasg
mov ds,ax
push ds:[0]
push ds:[2]
pop ds:[2]
pop ds:[0]
mov ax,4c00h
int 21h
codesg ends
end entry
d:/www_local/asm/11.asm
assume cs:codesg,ds:datasg,ss:stacksg
datasg segment
dw 0123H,0456H
datasg ends
stacksg segment
dw 0h,0h
stacksg ends
codesg segment
entry: mov ax,stacksg
mov ss,ax
mov sp,16h
mov ax,datasg
mov ds,ax
push ds:[0]
push ds:[2]
pop ds:[2]
pop ds:[0]
mov ax,4c00h
int 21h
codesg ends
end entry
d:/www_local/asm/12.asm
assume cs:codesg,ds:datasg,ss:stacksg
codesg segment
entry: mov ax,stacksg
mov ss,ax
mov sp,16h
mov ax,datasg
mov ds,ax
push ds:[0]
push ds:[2]
pop ds:[2]
pop ds:[0]
mov ax,4c00h
int 21h
codesg ends
datasg segment
dw 0123H,0456H
datasg ends
stacksg segment
dw 0h,0h
stacksg ends
end entry
D:/www_local/asm/test/131.asm
assume cs:codesg
a segment
db 1,2,3,4,5,6,7,8
a ends
b segment
db 1,2,3,4,5,6,7,8
b ends
cc segment
db 0,0,0,0,0,0,0,0
cc ends
codesg segment
entry: mov ax,a
mov ds,ax
mov ax,b
mov es,ax
mov ax,cc
mov ss,ax
mov bx,0
mov cx,8
flag: mov al,ds:[bx]
mov ss:[bx],al
mov al,es:[bx]
add ss:[bx],al
inc bx
loop flag
mov ax,4c00h
int 21h
codesg ends
end entry
d:/www_local/asm/13.asm
assume cs:codesg
a segment
db 1,2,3,4,5,6,7,8
a ends
b segment
db 1,2,3,4,5,6,7,8
b ends
cc segment
db 0,0,0,0,0,0,0,0
cc ends
codesg segment
entry: mov ax,a
mov ds,ax
mov ax,cc
mov es,ax
mov bx,0
mov cx,8
flag: mov al,ds:[bx]
mov es:[bx],al
inc bx
loop flag
mov ax,b
mov ds,ax
mov bx,0
mov cx,8
flag2: mov al,ds:[bx]
add es:[bx],al
inc bx
loop flag2
mov ax,4c00h
int 21h
codesg ends
end entry
d:/www_local/asm/14.asm
assume cs:codesg
a segment
dw 1h,2h,3h,4h,5h,6h,7h,8h
a ends
b segment
dw 0h,0h,0h,0h,0h,0h,0h,0h
b ends
codesg segment
entry: mov ax,b
mov ss,ax
mov sp,10h
mov ax,a
mov ds,ax
mov bx,0
mov cx,8
flag: push [bx]
add bx,2
loop flag
mov ax,4c00h
int 21h
codesg ends
end entry
d:/www_local/asm/15.asm
assume cs:codesg,ds:datasg
datasg segment
db 'abcd'
db '0123'
datasg ends
codesg segment
entry: mov ax,datasg
mov ds,ax
mov al,'a'
mov bl,'b'
mov ax,4c00h
int 21h
codesg ends
end entry
d:/www_local/asm/16.asm
assume cs:codesg,ds:datasg
datasg segment
db 'abcd'
db '0123'
datasg ends
codesg segment
entry: mov ax,datasg
mov ds,ax
mov bx,0
mov cx,4
flag: mov al,[bx]
and al,11011111b
mov [bx],al
inc bx
loop flag
mov ax,4c00h
int 21h
codesg ends
end entry
d:/www_local/asm/17.asm
assume cs:codesg,ds:datasg
datasg segment
db 'abcd'
db '0123'
datasg ends
codesg segment
entry: mov ax,datasg
mov ds,ax
mov bx,0
mov al,[0] ;这种写法是错误
mov al,ds:[bx+1]
mov al,ds:[2+bx]
mov al,ds:3[bx]
mov al,ds:[bx].24
mov ax,4c00h
int 21h
codesg ends
end entry
d:/www_local/asm/18.asm
assume cs:codesg,ds:datasg
datasg segment
db 'abcd'
db 'ABCD'
datasg ends
codesg segment
entry: mov ax,datasg
mov ds,ax
mov bx,0
mov cx,5
flag: mov al,0[bx]
and al,11011111b
mov 0[bx],al
mov al,5[bx]
or al,00100000b
mov 5[bx],al
inc bx
loop flag
mov ax,4c00h
int 21h
codesg ends
end entry
d:/www_local/asm/19.asm
assume cs:codesg,ds:datasg
datasg segment
db 'abcd'
db '....'
datasg ends
codesg segment
entry: mov ax,datasg
mov ds,ax
mov si,0
mov cx,4
flag: mov al,0[si]
mov 4[si],al
inc si
loop flag
mov ax,4c00h
int 21h
codesg ends
end entry
d:/www_local/asm/20.asm
assume cs:codesg,ds:datasg,ss:stacksg
codesg segment
entry: mov ax,datasg
mov ds,ax
mov ax,stacksg
mov ss,ax
mov sp,8
mov bx,0
mov cx,4
flag: mov si,0
push cx
mov cx,4
flag0: mov al,[bx][2+si]
and al,11011111b
mov [bx][2+si],al
inc si
loop flag0
pop cx
add bx,6
loop flag
mov ax,4c00h
int 21h
codesg ends
datasg segment
db '1.abcd'
db '2.abcd'
db '3.abcd'
db '4.abcd'
datasg ends
stacksg segment
dw 0h,0h,0h,0h
stacksg ends
end entry
d:/www_local/asm/21.asm
assume cs:codesg,ds:datasg,ss:stacksg
datasg segment
db '1.ab'
db '2.ab'
datasg ends
stacksg segment
dw 0h,0h,0h,0h
stacksg ends
codesg segment
entry: mov ax,datasg
mov ds,ax
mov ax,stacksg
mov ss,ax
mov sp,8
mov bx,0
mov cx,2
flag: mov si,0
push cx
mov cx,2
flag0: mov al,[bx][2+si]
and al,11011111b
mov [bx][2+si],al
inc si
loop flag0
pop cx
add bx,4
loop flag
mov ax,4c00h
int 21h
codesg ends
end entry
d:/www_local/asm/22.asm
assume cs:codesg
codesg segment
entry:
mov dx,0001h
mov ax,86a1h
mov bx,100
div bx
mov ax,4c00h
int 21h
codesg ends
end entry
d:/www_local/asm/23.asm
assume cs:codesg
codesg segment
entry:
mov ax,1001
mov bl,100
div bl
mov ax,4c00h
int 21h
codesg ends
end entry
d:/www_local/asm/24.asm
assume cs:codesg,ds:datasg
datasg segment
dd 100001
dw 100
dw 0h
datasg ends
codesg segment
entry: mov ax,datasg
mov ds,ax
mov ax,ds:[0] ;put low 16bit into ax
mov dx,ds:[2] ;put high 16bit into dx
div word ptr ds:[4]
mov ds:[6],ax
mov ax,4c00h
int 21h
codesg ends
end entry
d:/www_local/asm/25.asm
assume cs:codesg,ds:datasg,es:table
datasg segment
db '1975','1976','1977','1978','1979','1980','1981','1982','1983'
db '1984','1985','1986','1987','1988','1989','1990','1991','1992'
db '1993','1994','1995'
dd 16,22,382,1356,2390,8000,16000,24486,50065,97479,140417,197514
dd 345980,590827,803530,1183000,1843000,2759000,3753000,4649000,5937000
dw 3,7,9,13,28,38,130,220,476,778,1001,1442,2258,2793,4037,5635,8226
dw 11452,14430,15257,17800 ;peoples
datasg ends
table segment
db 21 dup ('year summ ne ?? ') ;total 21 years
table ends
codesg segment
entry: mov ax,datasg
mov ds,ax ;source
mov ax,table
mov es,ax ;产生关联
;================================
mov bx,0
mov bp,0
mov cx,21
flag2: mov dx,cx
;================================
mov si,0 ; si=si+1byte
mov cx,4 ;‘1975’
flag: mov al,ds:[bx].0h[si] ;y e a r
mov es:[bp].0h[si],al ;y e a r
mov al,ds:[bx].54h[si] ;income
mov es:[bp].5h[si],al ;income
add si,1
loop flag
;================================
add bx,4
add bp,16
mov cx,dx
loop flag2
;===============拷贝人数=================
mov bx,0
mov bp,0
mov cx,21
flag3: mov ax,ds:0a8h[bx] ;people
mov es:0ah[bp],ax ;people
add bx,2
add bp,16
loop flag3
;================计算人均收入16================
mov bx,0
mov si,0
mov bp,0
mov cx,21
flag4: mov ax,ds:54h[bx] ; low
mov dx,ds:54h[bx+2] ; high
div word ptr ds:0a8h[si] ;people
mov es:0dh[bp],ax ;division shang
add bx,4 ;income 4byte
add si,2 ;people 2byte
add bp,16 ;target
loop flag4
mov ax,4c00h
int 21h
codesg ends
end entry
d:/www_local/asm/26.asm
assume cs:codesg
codesg segment
entry: mov ax,0
jmp short s
add ax,1
add ax,ax
s: add ax,1
mov ax,4c00h
int 21h
codesg ends
end entry
d:/www_local/asm/27.asm
assume cs:codesg
codesg segment
entry: mov ax,0
;jmp near ptr s
jmp far ptr s
db 256 dup(0)
add ax,1
add ax,ax
s: add ax,1
mov ax,4c00h
int 21h
codesg ends
end entry
d:/www_local/asm/28.asm
assume cs:codesg
codesg segment
entry: mov ax,0123h
mov ds:[0],ax
mov ds:[2],4567h
jmp dword ptr ds:[0]
;jmp near ptr s
;jmp far ptr s
mov ax,4c00h
int 21h
codesg ends
end entry
d:/www_local/asm/29.asm
assume cs:codesg
codesg segment
entry: mov ax,0123h
jmp short s
db 138 dup(0)
s: mov ax,4567h
;jmp dword ptr ds:[0]
;jmp near ptr s
;jmp far ptr s
mov ax,4c00h
int 21h
codesg ends
end entry
d:/www_local/asm/30.asm
assume cs:codesg,ss:stacksg
stacksg segment
db 16 dup(0)
stacksg ends
codesg segment
mov ax,4c00h
int 21h
entry: mov ax,stacksg
mov ss,ax
mov sp,16
mov ax,0
push ax
ret ;相当于pop ip
codesg ends
end entry
d:/www_local/asm/31.asm
assume cs:codesg,ss:stacksg
stacksg segment
db 16 dup(0)
stacksg ends
codesg segment
mov ax,4c00h
int 21h
entry: mov ax,stacksg
mov ss,ax
mov sp,16
mov ax,0
push cs
push ax
ret ;相当于pop ip ,pop cs
codesg ends
end entry
d:/www_local/asm/32.asm
assume cs:codesg,ss:datasg
datasg segment
db 16 dup(0)
datasg ends
codesg segment
entry: mov ax,datasg
mov ss,ax
mov sp,16
mov word ptr ss:[0],offset s
mov ss:[2],cs
call dword ptr ss:[0]
nop
s: mov ax, offset s
sub ax,ss:[0ch] ;s处的偏移减去nop处的偏移
mov bx,cs
sub bx,ss:[0eh]
mov ax,4c00h
int 21h
codesg ends
end entry
d:/www_local/asm/33.asm
assume cs:codesg,ss:datasg
datasg segment
dw 1,2,3,4,5,6,7,8
dd 8 dup(0)
datasg ends
codesg segment
entry: mov ax,datasg
mov ds,ax
mov si,0 ;读取源
mov di,0 ;写入目的
mov cx,8
flag: mov bx,ds:[si]
call cube
mov ds:10h[di],ax;把结果放到下一组内存单元
mov ds:12h[di],dx
add si,2
add di,4
loop flag
mov ax,4c00h
int 21h
cube: mov ax,bx
mul bx
mul bx
ret ;结果高16位在dx 第16位在ax
codesg ends
end entry