王爽的教程实验九：在屏幕输出三行字：Welcome to masm!，分别是绿色，红底绿色，白底蓝色。
我的代码：
assume cs:codesg,ds:datasg
datasg segment
db 'Welcome to masm!'
datasg ends
codesg segment
start:
mov bx,10
mov ax,datasg
mov ds,ax
mov ax,0b800h
mov es,ax
mov di,10*160+80
mov si,0
mov cx,10h
s:mov al,ds:[si]
mov ah,10000010b
mov es:[di],ax
inc si
inc di
inc di
loop s
mov cx,10h
mov si,0
s1:mov al,ds:[si]
mov ah,10100100b
mov es:[di],ax
inc si
inc di
inc di
loop s1
mov cx,10h
mov si,0
s2:mov al,ds:[si]
mov ah,11111001b
mov es:[di],ax
inc si
inc di
inc di
loop s2
mov ax,4c00h
int 21h
codesg ends
end start
输出结果：Welcome to masm!Welcome to masm!Welcome to masm!三句是连续的，并没有换行，
而老师的代码是换行的，老师又没有解释为什么。
assume cs:code,ds:data
data segment
db 'Welcome to masm!'
data ends
code segment
start:
mov ax,data
mov ds,ax
mov ax,0b800h
mov es,ax
mov si,0
mov di,10*160+80
mov cx,16
s1: mov al,ds:[si]
mov ah,00000010b
mov es:[di],ax
inc si
inc di
inc di
loop s1
mov si,0
mov di,11*160+80
mov cx,16
s2: mov al,ds:[si]
mov ah,00100100b
mov es:[di],ax
inc si
inc di
loop s2
mov si,0
mov di,12*160+80
mov cx,16
s3: mov al,ds:[si]
mov ah,01110001b
mov es:[di],ax
inc si
inc di
inc di
loop s3
mov ax,4c00h
int 21h
code ends
end start
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