题目一：成绩评级
写一个完整的8086汇编语言程序，该程序从键盘输入一个成绩，判断其属于哪个等级，等级分别为’A’ (80-100),’B’(60-80),’C’(0-59)，并显示结果在屏幕上。
源码：如果运行报错或死机，尝试把中文注释删除(分号“；”后面的为注释)
;Program:成绩评级;Author:Nonoas;Date:20191023
.386.MODEL FLAT
ExitProcess PROTO NEAR32 stdcall, dwExitCode:DWORD
INCLUDE io.h ; header file for input/output
cr EQU 0dh ; carriage return characterLf EQU 0ah ; line feed
.STACK 4096 ; reserve 4096-byte stack
.DATA ; reserve storage for data
prompt1 byte "Enter a source:",0prompt2 byte cr,lf,"The result is:",0number DWORD ?str1 byte 40 dup (?)result DWORD ?
.CODE ; start of main program code_start:
output prompt1 input str1,40 atod str1 mov number,eax
cmp eax,59 jle endc cmp eax,80 jle endb cmp eax,100 jle enda
endc: mov ebx,"C" jmp endallendb: mov ebx,"B" jmp endallenda: mov ebx,"A" jmp endall
endall: mov result,ebx output prompt2 output result
INVOKE ExitProcess, 0 ; exit with return code 0PUBLIC _start ; make entry point public
END ; end of source code
题目二：1~N的平方
写出一段完整的80*86程序，实现输入一个正整数值N后，用两栏格式显示从1到N和它们的平方。如：从键盘输入5，则显示如下内容
| 数字 | 平方 |
| 1 | 1 |
| 2 | 4 |
| 3 | 9 |
| 4 | 16 |
| 5 | 25 |
源码：
;Program:;Author:;Date:
.386.MODEL FLAT
ExitProcess PROTO NEAR32 stdcall, dwExitCode:DWORD
INCLUDE io.h ; header file for input/output
cr EQU 0dh ; carriage return characterLf EQU 0ah ; line feed
.STACK 4096 ; reserve 4096-byte stack
.DATA ; reserve storage for data
prompt byte "Enter a data:",0sign byte " num num^2",cr,lf,0space byte " ",0nextline byte cr,lf,0number DWORD ?num1 DWORD ?num2 DWORD ?count DWORD 1num3 byte 10 dup (?)string byte 40 dup (?)
.CODE ; start of main program code_start:
output prompt input string,40 atod string mov number,eax output sign cmp eax,count jle endallagain: mov ecx,count mov ebx,count imul ebx,count dtoa num1,ecx output num1 dtoa num2,ebx output num2 output nextline add ecx,1 mov count,ecx cmp ecx,number jle again
endall:
INVOKE ExitProcess, 0 ; exit with return code 0PUBLIC _start ; make entry point public
END ; end of source code
