eol75999 发表于 2021-2-22 18:07:07

实验10.1

assume cs:code
data segment
db 'hello world',0
data ends
code segment
start:
mov dh,8;行号
mov dl,3;列号
mov cl,2;颜色
mov ax,data
mov ds,ax
mov si,0
call show_str
mov ax,4c00h
int 21h
show_str:
mov bx,0b800h
mov ax,0a0h
mul dh
add ax,bx
mov es,ax
mov dh,0
mov bx,dx
mov ah,0
mov al,cl

s:
mov ah,
mov byte ptr es:,ah
mov byte ptr es:,al
mov cx,
add di,2
inc si
jcxz qwer
jmp s
qwer:
ret
code ends
end start

eol75999 发表于 2021-2-22 18:07:51

想问一下为啥没显示

wtchou 发表于 2021-2-23 10:24:00

assume cs:code
data segment
db 'hello world',0
data ends
code segment
start:
mov dh,8;行号
mov dl,3;列号
mov cl,2;颜色
mov ax,data
mov ds,ax
mov si,0
call show_str
mov ax,4c00h
int 21h
show_str:
mov bx,0b800h
mov es,bx
mov ax,0a0h
mul dh
mov bx,ax
mov ax,2
mul dl
add bx,ax
mov al,cl
mov cl,0
mov di,0

s:
mov ch,
jcxz qwer
mov ah,
mov byte ptr es:,ah
mov byte ptr es:,al
add di,2
inc si
jmp s
qwer:
ret
code ends
end start
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