彙編語言-打印部分ASCII表

  用表格形式顯示字符

1． 題目：用表格形式顯示ASCII字符

2.要求：按15行×16列的表格形式顯示ASCII碼爲10H－100H的全部字符，即以行爲主的順序及ASCII碼遞增的次序依次顯示對應的字符。每16個字符爲一行，每行中的相鄰兩個字符之間用空白符或空格符（ASCII碼爲0或20H）隔開

代碼以下：

 1 ; Example assembly language program --
 2 ; Author:  Karllen
 3 ; Date:    revised 05/2014
 4 
 5 .386
 6 .MODEL FLAT
 7 
 8 ExitProcess PROTO NEAR32 stdcall, dwExitCode:DWORD
 9 
10 INCLUDE io.h            ; header file for input/output
11 
12 cr      EQU     0dh     ; carriage return character
13 Lf      EQU     0ah     ; line feed
14 
15 .STACK  4096            ; reserve 4096-byte stack
16         
17 .DATA                   ; reserve storage for data
18       
19        promot  BYTE  "The program is to print Ascii from 10h to 100h",cr,Lf,0
20        line    DWORD  ?
21        row     DWORD  ?
22        ccf     BYTE   " ",0
23        crlf    BYTE   cr,Lf,0
24        char    BYTE   1 DUP(?)
25            
26 .CODE                           ; start of main program code
27 _start:
28        output  promot
29        mov     row,0
30        mov     line,0
31        mov     char,0Fh
32        doFirstWhile:
33               inc line
34               cmp line,15
35               jg  endFirstWhile
36               mov row,0
37               doSecondWhile:
38                      inc row
39                      cmp row,16
40                      jg  endSecondWhile
41                      add char,1
42                      output char
43                      output ccf
44                      jmp  doSecondWhile
45               endSecondWhile:
46                      output crlf
47                      jmp  doFirstWhile
48         endFirstWhile:
49         
50         INVOKE  ExitProcess, 0  ; exit with return code 0
51 
52 PUBLIC _start                   ; make entry point public
53 
54 END                             ; end of source code

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