问题
I've googled and googled, and I've not found anything useful. How can I send output to the console, and accept user input from the console with assembly?
I'm using MASM32
回答1:
As filofel says, use the Win32 API. Here's a small hello world example:
.386
.MODEL flat, stdcall
STD_OUTPUT_HANDLE EQU -11
GetStdHandle PROTO, nStdHandle: DWORD
WriteConsoleA PROTO, handle: DWORD, lpBuffer:PTR BYTE, nNumberOfBytesToWrite:DWORD, lpNumberOfBytesWritten:PTR DWORD, lpReserved:DWORD
ExitProcess PROTO, dwExitCode: DWORD
.data
consoleOutHandle dd ?
bytesWritten dd ?
message db "Hello World",13,10
lmessage dd 13
.code
main PROC
INVOKE GetStdHandle, STD_OUTPUT_HANDLE
mov consoleOutHandle, eax
mov edx,offset message
pushad
mov eax, lmessage
INVOKE WriteConsoleA, consoleOutHandle, edx, eax, offset bytesWritten, 0
popad
INVOKE ExitProcess,0
main ENDP
END main
To assemble:
ml.exe helloworld.asm /link /subsystem:console /defaultlib:kernel32.lib /entry:main
Now to capture input, you'd proceed similarly, using API functions such as ReadConsoleInput. I leave that as an exercise to you.
回答2:
Just by using the Win32 API: By writing to STD_OUTPUT_HANDLE (and reading from STD_INPUT_HANDLE). See GetStdHandle() in MSDN as a starting point... Use the MASM HLL constructs to help you (INVOKE is your friend for calling Win32 functions and passing parms).
回答3:
"The console" can be rather ambiguous in the modern Windows world. If by console program, you really mean DOS program, you can use the DOS INT 21 API, which is much simpler than calling Win32. I don't have MASM but here is a plain-jane example of how to read a character and write a character. See this for more DOS functions.
MOV AH,1 ; code for "read a character"
INT 21H ; character gets put in AL
MOV AH,2 ; code for "write a character"
MOV DL,'A' ; ascii code goes in DL
INT 21H
回答4:
Download and link to the Irvine32 libraries, they will provide you with input and output functions that are very user friendly.
来源：https://stackoverflow.com/questions/2718332/how-can-i-do-input-output-on-a-console-with-masm