汇编语言-显示九九乘法表

1． 题目：以9行9列的形式显示九九乘法表

2． 要求：显示下三角格式如表4.1所示，也可以上三角格式显示。

 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        flaj     WORD ?

20        

21        

22        promot   BYTE "The program is to print the 9*9 table",cr,Lf,0

23        crlf     BYTE cr,Lf,0

24        char1    BYTE 1 DUP(?),0

25        char2    BYTE 1 DUP(?),0

26        me       BYTE  1 DUP(?),0

27 

28        mulzs    BYTE 1 DUP(?),0

29        brr      BYTE " ",0

30        sh       BYTE 1 DUP(?),0

31    

32       

33 .CODE                           ; start of main program code

34 _start:

35        mov  mulzs,2Ah

36        mov  me,3Dh

37        mov  bx,0

38        mov  char1,30h

39        doFirstWhile:

40               inc  bx

41               inc  char1

42               cmp  bx,9

43               jg   endFirstWhile

44               mov  flaj,1

45               mov  char2,31h

46               doSecondWhile:

47                    cmp flaj,bx

48                    jg  endSecondWhile

49                        mov    ax,bx

50                        mul    flaj

51                        mov    cx,flaj

52                        

53                        output char1

54                        output mulzs

55                        output char2

56                        output me

57                        cmp  ax,10

58                        jl   FindOne

59                             mov dl,10

60                             div dl

61                             mov sh,al

62                             add sh,'0'

63                             output sh

64                             mov  sh,ah

65                             add  sh,'0'

66                             output sh

67                             jmp  endTwo

68                        

69                        FindOne:

70                           mov  sh,al

71                           add  sh,'0'

72                           output sh

73                        endTwo:

74                           output brr

75                        inc    flaj

76                        inc    char2

77                        jmp    doSecondWhile

78               endSecondWhile:

79                        output crlf

80                        jmp    doFirstWhile  

81        endFirstWhile:

82         INVOKE  ExitProcess, 0  ; exit with return code 0

83 

84 PUBLIC _start                   ; make entry point public

85 

86 END                             ; end of source code

 

 运行结果：