實驗9自己做下來感覺代碼不難寫，但是寄存器的分配很關鍵，要省着點用，另外用DEBUG調試非常費力，後來用了emu8086調試方便多了，可以單步調試成功就只是時間問題了。
assume cs:codesg
;ds = char_array
;L[si] outsite loop
;l[di] insite loop
;es:bx write memory
stack segment
db 32 dup (0)
stack ends
char_array segment
db 'welcome to masm!' ;size = 16 index:[ds:di]
char_array ends
color_array segment
db 00000010B,00100100B,01110001B ;-G,GR;WB index:[ds:16+si]
color_array ends
addr_array segment
dw 2000,2160,2320 ; 8c0,960,a00 index: [ds:32+si+si]
addr_array ends
codesg segment
start:
;stack init
mov ax,stack
mov ss,ax
mov sp,32
;ds init
mov ax,char_array
mov ds,ax
;L_index init
mov si, 0
;L times init
mov cx,3
LOOP_OUT:
;save LOOP_OUT registers
push cx
;l_index init
mov di,0
;get addr offset into bx
mov ax,si
add ax,ax
add ax,20h
mov bx,ax
mov bx,[bx]
;get the char color into al
mov al,[10h+si]
;write char
mov dx,0b800h
mov es,dx
;l times init
mov cx,16
LOOP_IN:
;get the char[si] into ah
mov ah,[di]
mov es:[bx],ah
mov es:[bx+1],al
;update l_index
inc di
inc bx
inc bx
loop LOOP_IN
pop cx
;update L_index
inc si
loop LOOP_OUT
mov ax,4c00H
int 21H
codesg ends
end start