寒假汇编语言作业(9-10)

程序设计项目九

将ASCII码按顺序在屏幕上竖列显示。参看demo3.gif示例。

要求：

（1）逐个显示字符，相邻的两个字符之间显示要有时间间隔。

（2）字符颜色为绿色。

（3）每列显示20个字符，列间距为5个字符。显示完128个ASCII码，共需7列。

参考代码：

 1 assume cs:code
 2 
 3 stack segment
 4         dw 16 dup (0)
 5 stack ends
 6 
 7 code segment
 8 start:
 9         mov ax,0b800h
10         mov es,ax
11         mov ax,stack
12         mov ss,ax
13         mov sp,20h
14         mov dh,02h
15         mov dl,0
16         mov di,280
17         mov cx,7
18     s0:
19         push cx
20         push di
21         mov cx,20
22      s1:
23         mov es:[di],dx
24         cmp dl,127
25         je over
26         inc dl
27         add di,160
28         call sleep
29         loop s1
30         pop di
31         sub di,10
32         pop cx
33         loop s0
34         jmp over
35 
36  sleep:
37         push cx
38         mov cx,2
39      ssl:
40         push cx
41         mov cx,0ffffh
42      ssl1:
43         loop ssl1
44         pop cx
45         loop ssl
46         pop cx
47         ret
48 
49  over:
50         mov ax,4c00h
51         int 21h
52 code ends
53 end start

hj9.asm

程序设计项目十

在屏幕上斜着显示三个‘happy spring festival！’,字符串的颜色分别为蓝色、绿色和红色，并且各个字符串的颜色按规律变换。参看demo4.gif示例。

参考代码：

 1 assume cs:code
 2 
 3 data segment
 4         db 'happy spring festival! '
 5         db  01h,02h,04h,01h,02h
 6 data ends
 7 
 8 stack segment
 9         dw 8 dup (0)
10 stack ends
11 
12 code segment
13 start:
14         mov ax,data
15         mov ds,ax
16         mov ax,0b800h
17         mov es,ax
18         mov ax,stack
19         mov ss,ax
20         mov sp,10h
21     again:
22         mov si,0
23         mov bp,23
24         mov di,500
25         mov cx,3
26      main:
27         push cx
28         push si
29         push di
30         mov cx,23
31      s0:
32         mov al,ds:[si]
33         mov ah,ds:[bp]
34         mov es:[di],ax
35         mov ah,ds:[bp+1]
36         mov es:[di+6],ax
37         mov ah,ds:[bp+2]
38         mov es:[di+12],ax
39         add di,164
40         inc si
41         loop s0
42 
43         inc bp
44         call sleep
45         pop di
46         pop si
47         pop cx
48         loop main
49 
50     ;    jmp again
51         jmp over
52 
53 sleep:
54         push cx
55         mov cx,20
56      sslp:
57         push cx
58         mov cx,0ffffh
59      ssl:
60         loop ssl
61         pop cx
62         loop sslp
63         pop cx
64         ret
65 
66 over:
67         mov ax,4c00h
68         int 21h
69 code ends
70 end start

hj10.asm