计算总评成绩
- 题目：从键盘输入一同学的期中成绩、实验成绩、期末成绩和它们在总评成绩中分别占的百分比，计算得到该同学的总评成绩，并显示出来。
- 要求：该程序提示输入3个成绩和所占百分比。可参考如下的例子显示：
grade 1 ? 85
percent 1 ? 20
grade 2 ? 75
percent 2 ? 20
grade 3 ? 82
percent 3 ? 60
score is : 81
总评成绩 ＝ (期中成绩×百分比1＋实验成绩×百分比2＋期末成绩×百分比3)/100
1 ; Example assembly language program --
2 ; Author: karllen
3 ; Date: revised 5/2014
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
18 promot1_1 BYTE "grade 1 ? ",0
19 promot1_2 BYTE "percent 1 ? ",0
20 promot2_1 BYTE "grade 2 ? ",0
21 promot2_2 BYTE "percent 2 ? ",0
22 promot3_1 BYTE "grade 3 ? ",0
23 promot3_2 BYTE "percent 3 ? ",0
24
25 value BYTE 11 DUP(?)
26 onec DWORD ?
27 twoc DWORD ?
28 threec DWORD ?
29
30 answer BYTE "score is: "
31 average BYTE 11 DUP(?)
32 BYTE cr,Lf,0
33 .CODE
34 _start:
35 output promot1_1 ;enter first grade and percent
36 input value,11
37 atod value
38 mov onec,eax
39 mov ebx,eax
40 output promot1_2
41 input value,11
42 atod value
43 mul ebx ;calculate first grade*percent
44 mov onec,eax
45
46
47 output promot2_1 ;enter second grade and percent
48 input value,11
49 atod value
50 mov twoc,eax
51 mov ebx,eax
52 output promot2_2
53 input value,11
54 atod value
55 mul ebx ;calculate second grade*percent
56 mov twoc,eax
57
58
59 output promot3_1 ;enter the third grade and percent
60 input value,11
61 atod value
62 mov threec,eax
63 mov ebx,eax
64 output promot3_2
65 input value,11
66 atod value
67 mul ebx ;calculate the third grade and percent
68 mov threec,eax
69
70 add eax,onec ;to calculate sum
71 add eax,twoc
72 add eax,threec
73
74 mov ebx,100
75 div ebx ;to calculate the average
76
77 dtoa average,eax
78 output answer
79
80 INVOKE ExitProcess, 0 ; exit with return code 0
81
82 PUBLIC _start ; make entry point public
83
84 END ; end of source code
测试
时间： 2024-10-09 19:46:16