移动一个字节一个字节 [英] Moving a BYTE to a BYTE

问题描述

我在计算机体系结构和汇编语言类，我应该创建一个用于创建Fibonacci序列到一个用户定义的数MASM程序，即（含）1和46之间。当我尝试传输字符串存储在字节标记缓存，这就是本书的作者 ReadString 程序存储一个字符串，另一个字节标记用户，我收到此生成输出：

  1 GT; ------启动生成：项目：MASM2，配置：调试的Win32 ------
1＆GT;装配fibonacci.asm ...
1＆GT; fibonacci.asm（39）：错误A2070：无效的指令操作数
1＆GT; C：\\ Program Files文件（x86）的\\的MSBuild \\ Microsoft.Cpp \\ V4.0 \\ V140 \\ BuildCustomizations \\ masm.targets（50,5）：错误MSB3721：命令ML.EXE / C / NOLOGO / SG /紫/Fo\"Debug\\fibonacci.obj/Fl\"MASM2.lst/ IC：\\欧文/ W3 / errorReport：提示/Tafibonacci.asm退出，code 1。
==========生成：0成功，1失败，0了最新，0已跳过==========
 

我不知道为什么我不能移动到相同大小的物体相互转化。我评论出用户部件和印刷缓冲区，它被正确地存储输入为字符串。任何帮助是极大的AP preciated。

***注：我们使用这本书汇编语言的x86处理器，第7版。由硖欧文，他利用Irvine32库。

 ;计算斐波那契数到第n程度INCLUDE Irvine32.inc。数据
缓冲器字节21 DUP（0）
欢迎BYTE欢迎斐波纳契！我的名字是扎克，我将是你今天的程序员！，0
问题BYTE你叫什么名字？：0
BYTE打招呼你好，0用户BYTE？提示BYTE从1到46输入一个数字：0
听取汇报BYTE再见SDWORD输入？FIB DWORD？。code
主要PROC     调用Clrscr     ;打印欢迎屏幕
     MOV EDX，OFFSET欢迎
     调用WriteString
     调用CRLF
     ;获取用户名和问候
     MOV EDX，OFFSET问题
     调用WriteString
     调用CRLF     MOV EDX，漂移缓冲
     MOV ECX，SIZEOF缓冲
     调用ReadString
     MOV用户，缓冲     MOV EDX，迎接OFFSET
     调用WriteString
     MOV EDX，漂移缓冲
     调用WriteString
     调用CRLF
    ;获得Input-- 1〜46     MOV EDX，OFFSET提示
     调用WriteString     调用的readInt
     MOV输入，EAX
     ;验证ñ     ;计算-5每行而言W在/ 5位
     MOV ECX，输入
     MOV人，'，'
     MOV EAX，1
     调用WriteDec     开始：
     调用WriteChar
     调用WriteDec
     MOV FIB，EAX
     添加EAX，谎
     循环开始     ;听取汇报
     调用CRLF
     MOV EDX，OFFSET汇报
     调用WriteString
    调用了ExitProcess，0
主要ENDP
最终主
 

有趣的新输出：

  1 GT; ------启动生成：项目：MASM2，配置：调试的Win32 ------
1＆GT;装配fibonacci.asm ...
1 GT; fibonacci.asm（44）：错误A2022：指令操作数必须是相同的大小
1 GT; fibonacci.asm（45）：错误A2022：指令操作数必须是相同的大小
1＆GT; C：\\ Program Files文件（x86）的\\的MSBuild \\ Microsoft.Cpp \\ V4.0 \\ V140 \\ BuildCustomizations \\ masm.targets（50,5）：错误MSB3721：命令ML.EXE / C / NOLOGO / SG /紫/Fo\"Debug\\fibonacci.obj/Fl\"MASM2.lst/ IC：\\欧文/ W3 / errorReport：提示/Tafibonacci.asm退出，code 1。
==========生成：0成功，1失败，0了最新，0已跳过==========
 

解决方案

我改变了code所以ReadString径直到用户，输出是正确的。

 ;获取用户名和问候
 MOV EDX，OFFSET问题
 调用WriteString
 调用CRLF MOV EDX，OFFSET用户
 MOV ECX，SIZEOF用户
 调用ReadString MOV EDX，迎接OFFSET
 调用WriteString
 MOV EDX，OFFSET用户
 调用WriteString
 调用CRLF
 

I am in a Machine Architecture and Assembly Language class, and I am supposed to create a MASM program that creates the Fibonacci sequence up to a user defined number, that is inclusively between 1 and 46. When I try to transfer the string stored in a BYTE labeled buffer, which is where the book authors ReadString procedure stores a string, to another BYTE labeled user, I receive this build output:

1>------ Build started: Project: MASM2, Configuration: Debug Win32 ------
1>  Assembling fibonacci.asm...
1>fibonacci.asm(39): error A2070: invalid instruction operands
1>C:\Program Files (x86)\MSBuild\Microsoft.Cpp\v4.0\V140\BuildCustomizations\masm.targets(50,5): error MSB3721: The command "ml.exe /c /nologo /Sg /Zi /Fo"Debug\fibonacci.obj" /Fl"MASM2.lst" /I "c:\Irvine" /W3 /errorReport:prompt  /Tafibonacci.asm" exited with code 1.
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

I am not sure why I can't move to same sized objects into each other. I commented out the user parts and printed the buffer, and it is storing the input as a string correctly. Any help is greatly appreciated.

***Note: We are using the book Assembly Language for the x86 Processor, 7th Ed. by Kip Irvine, and using his Irvine32 Library.

; Calculate Fibonacci to the nth degree

INCLUDE Irvine32.inc

.data
buffer BYTE 21 DUP(0)
welcome BYTE "Welcome to Fibonacci! My name is Zach, I will be your programmer today!", 0
question BYTE "What is your name?: ", 0
greet BYTE "Hello, ", 0

user BYTE ?

prompt BYTE "Enter a number from 1 to 46: ", 0
debrief BYTE "GoodBye"

input SDWORD ?

fib DWORD ?

.code
main proc

     call Clrscr

     ;Print Welcome Screen
     mov edx,OFFSET welcome
     call WriteString
     call Crlf


     ;Get Username and Greet
     mov edx,OFFSET question
     call WriteString
     call Crlf

     mov edx,OFFSET buffer
     mov ecx,SIZEOF buffer
     call ReadString
     mov user, buffer

     mov edx,OFFSET greet
     call WriteString
     mov edx,OFFSET buffer
     call WriteString
     call Crlf


    ;Get Input-- 1 to 46

     mov edx,OFFSET prompt
     call WriteString

     call ReadInt
     mov input,eax


     ;Validate n

     ;Calculate-5 terms per line w/5 spaces between
     mov ecx,input
     mov al, ','
     mov eax,1
     call WriteDec

     start:
     call WriteChar
     call WriteDec
     mov fib, eax
     add eax,fib
     LOOP start

     ;Debrief
     call Crlf
     mov edx,OFFSET debrief
     call WriteString
    invoke ExitProcess,0
main endp
end main

Fun New Output:

1>------ Build started: Project: MASM2, Configuration: Debug Win32 ------
1>  Assembling fibonacci.asm...
1>fibonacci.asm(44): error A2022: instruction operands must be the same size
1>fibonacci.asm(45): error A2022: instruction operands must be the same size
1>C:\Program Files (x86)\MSBuild\Microsoft.Cpp\v4.0\V140\BuildCustomizations\masm.targets(50,5): error MSB3721: The command "ml.exe /c /nologo /Sg /Zi /Fo"Debug\fibonacci.obj" /Fl"MASM2.lst" /I "c:\Irvine" /W3 /errorReport:prompt  /Tafibonacci.asm" exited with code 1.
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

解决方案

I changed the code so ReadString goes straight to User, and the output is correct.

 ;Get Username and Greet
 mov edx,OFFSET question
 call WriteString
 call Crlf

 mov edx,OFFSET user
 mov ecx,SIZEOF user
 call ReadString

 mov edx,OFFSET greet
 call WriteString
 mov edx,OFFSET user
 call WriteString
 call Crlf

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