Hello world

[hghesteemed]

Hi,

I installed the masm32 and im following a simple tutorial to get hello world working and i can't get any output from the program. What is wrong with the code? Please help. Thanks

.386
.model flat, stdcall
option casemap :none
includeincludeinclude\masm32\include\windows.inc
\masm32\include\kernel32.inc
\masm32\include\masm32.inc
includelibincludelib\masm32\lib\kernel32.lib
\masm32\lib\masm32.lib
.data
HelloWorld db "Hello World!", 0
.code
start:
invoke StdOut, addr HelloWorld
invoke ExitProcess, 0
end start

It assembles and links ok but no output.

[Vortex]

Hi hghesteemed,

Welcome to the forum.

Did you build your project as CONSOLE application?

Code: [Select]

\masm32\bin\link /SUBSYSTEM:CONSOLE hello.obj
Don't forget to run your application from the command-line prompt.

[hghesteemed]

Hi

Yes its a console application, i use the gui to assemble and link, it seems to since I can see both my object code and executable. Just no output when I run.

[Vozzie]

Hi

Try the "inkey" macro...

Code: [Select]


include \masm32\include\masm32rt.inc

.data
HelloWorld db "Hello World!",13,10,0
.code
start:
invoke StdOut, addr HelloWorld
inkey "Press a key to continue ..."


invoke ExitProcess, 0
end start
(also more easy to use the masm runtime include)

Greetings

[dedndave]

i am a bit surprised it assembles with all this...

Code: [Select]

includeincludeinclude\masm32\include\windows.inc
\masm32\include\kernel32.inc
\masm32\include\masm32.inc
includelibincludelib\masm32\lib\kernel32.lib
\masm32\lib\masm32.lib
at any rate, we have a little shortcut
you can look inside the \masm32\include\masm32rt.inc file with a text editor to see what it does

Code: [Select]

include \masm32\include\masm32rt.inc
.data
HelloWorld db "Hello World!", 0
.code
start:
invoke StdOut, addr HelloWorld
inkey
invoke ExitProcess, 0
end start

[Gunther]

Hi hghesteemed,

welcome to the forum.

Gunther

[kroz]

for a messagebox :

type in .CODE section :

invoke MessageBox, NULL, offset msg, offset cap, MB_OK
invoke ExitProcess, eax

type in .DATA section :

msg db "Hello World ", 0
cap db "Hey There! ",0

hope this helpss

[Vortex]

Hi kroz,

In addition :

Code: [Select]

\masm32\bin\link /SUBSYSTEM:WINDOWS ...