assume cs:code
code segment
da db 200h dup(?)
int7c:jmp short mai
tab dw red,writ
mai: push bx
push ax
mov ax,dx
mov dx,0
mov bx,18
div bx
inc dx
push dx
mov bx,80
div bx
mov ch, dl
mov dh,al
...
- [fpamc] 10.4 ax=11 10.5(1)ax=3 11/05 08:53
- [fpamc] 对的 11/03 11:57
- [fpamc] 对的, 11/02 08:48
- [fpamc] 对的。 11/01 10:27
- [fpamc] 对的。 11/01 10:19
- [zmt1975] (1)SP=0010 第二题,应该对??SP指向栈顶元素,从1000F到10000向20000到2 10/31 19:39
- [fpamc] 对的。 10/30 09:37
- [fpamc] 对的。 10/30 09:35
- [fpamc] add ax,[0004] ax=2c14 10/30 09:33
- [fpamc] 两个sp都不对。 10/30 09:27
[2012-12-01 19:46] 实验17
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[2012-11-28 15:40] 实验16
assume cs:code
code segment
d db 200h dup(?)
int7c:jmp short main
tabl dw sub1,sub2,sub3,sub4
main:push es
push di
push cx
push si
push bx
push ax
cmp ah,3
ja mainend
mov bx,0
mov bl,ah
add bx,bx
...
code segment
d db 200h dup(?)
int7c:jmp short main
tabl dw sub1,sub2,sub3,sub4
main:push es
push di
push cx
push si
push bx
push ax
cmp ah,3
ja mainend
mov bx,0
mov bl,ah
add bx,bx
...
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[2012-11-28 15:39] 检测点16.2
ASSUME CS:CODE,ES:DATA
DATA SEGMENT
A DB 1,2,3,4,5,6,7,8
B DW 0
DATA ENDS
CODE SEGMENT
START:MOV AX,DATA
MOV ES,AX
MOV SI,0
MOV CX,8
S:MOV AL,A[SI]
MOV AH,0
ADD B,AX
INC SI
LOOP S
MOV AX,4C00H
INT 21H
CODE ENDS
END S...
DATA SEGMENT
A DB 1,2,3,4,5,6,7,8
B DW 0
DATA ENDS
CODE SEGMENT
START:MOV AX,DATA
MOV ES,AX
MOV SI,0
MOV CX,8
S:MOV AL,A[SI]
MOV AH,0
ADD B,AX
INC SI
LOOP S
MOV AX,4C00H
INT 21H
CODE ENDS
END S...
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[2012-11-28 15:38] 检测点16.1
ASSUME CS:CODE
CODE SEGMENT
A DW 1,2,3,4,5,6,7,8,9
B DD 0
START: MOV SI,0
MOV CX,9
S:MOV AX,A[SI]
ADD A[18],AX
ADC A[20],0
ADD SI,2
LOOP S
MOV AX,4C00H
INT 21H
CODE ENDS
END START...
CODE SEGMENT
A DW 1,2,3,4,5,6,7,8,9
B DD 0
START: MOV SI,0
MOV CX,9
S:MOV AX,A[SI]
ADD A[18],AX
ADC A[20],0
ADD SI,2
LOOP S
MOV AX,4C00H
INT 21H
CODE ENDS
END START...
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[2012-11-28 15:29] 实验15
assume cs:code
code segment
start: mov ax,cs
mov ds,ax
mov si,offset int9
mov ax,0
mov es,ax
mov di,204h
mov cx,offset int9end-int9
cld
rep movsb
mov ax,es:[36]
mov es:[200h],ax
mov ax,e...
code segment
start: mov ax,cs
mov ds,ax
mov si,offset int9
mov ax,0
mov es,ax
mov di,204h
mov cx,offset int9end-int9
cld
rep movsb
mov ax,es:[36]
mov es:[200h],ax
mov ax,e...
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[2012-11-25 09:30] 检测点15.1
(1)
PUSHF
CALL DWORD PTR DS:[0]
(2)
在设置新的INT 9中断例程和恢复原来的INT 9中断例程的入口地址前后加STI和CLI...
PUSHF
CALL DWORD PTR DS:[0]
(2)
在设置新的INT 9中断例程和恢复原来的INT 9中断例程的入口地址前后加STI和CLI...
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[2012-11-24 16:59] 实验14
;读COMS RAM 2号单元内容
assume cs:code
code segment
start:mov ax,0b800h
mov es,ax
mov di,160*12
mov cx,10
mov bl,9
s: push cx
mov al,bl
out 70h,al
in al,71h
mov ah,al
mov cl,4
shr ah,cl
a...
assume cs:code
code segment
start:mov ax,0b800h
mov es,ax
mov di,160*12
mov cx,10
mov bl,9
s: push cx
mov al,bl
out 70h,al
in al,71h
mov ah,al
mov cl,4
shr ah,cl
a...
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[2012-11-24 16:57] 检测点14.2
;计算(AX)=(AX)*10
assume cs:code
code segment
start: mov ax,109
mov bx,ax
mov cl,4
shl bx
shl ax,cl
add ax,bx
mov ax,4c00h
int 21h
code ends
end start...
assume cs:code
code segment
start: mov ax,109
mov bx,ax
mov cl,4
shl bx
shl ax,cl
add ax,bx
mov ax,4c00h
int 21h
code ends
end start...
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[2012-11-24 16:52] 检测点14.1
;读取并显示COMS RAM 2号单元内内容
assume cs:code
code segment
start:mov ax,0b800h
mov es,ax
mov di,160*12+36*2
mov al,2
out 70h,al
in al,71h
mov ah,42h
mov es:[di],ax
mov ax,4c00h
int 21h
code ends
end start
;向...
assume cs:code
code segment
start:mov ax,0b800h
mov es,ax
mov di,160*12+36*2
mov al,2
out 70h,al
in al,71h
mov ah,42h
mov es:[di],ax
mov ax,4c00h
int 21h
code ends
end start
;向...
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[2012-11-21 18:01] 实验13.3
assume cs:code
code segment
s1:db'good,better,best,','$'
s2:db'never let it rest,','$'
s3:db'till good is better,','$'
s4:db'and better,best.','$'
s: dw offset s1,offset s2,offset s3,offset s4
row:db 2,4,6,8
start:mov ax,cs
mov ds,ax
mov bx,offset s
...
code segment
s1:db'good,better,best,','$'
s2:db'never let it rest,','$'
s3:db'till good is better,','$'
s4:db'and better,best.','$'
s: dw offset s1,offset s2,offset s3,offset s4
row:db 2,4,6,8
start:mov ax,cs
mov ds,ax
mov bx,offset s
...
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