Problem running "Hello World" assembler program, Compiled as 32-bit Console application

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xfactor973

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Posts: 1
Member No.: 524
Joined: 12-September 04

I'm trying to get my "Hello World" program to run.
It compiles ok into an .EXE, but when i run it from the console, nothing happens.

CODE

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Build this example with

>> Console Assemble & Link <<

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.486
.model flat, stdcall
option casemap :none ; case sensitive

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include c:\masm32\include\windows.inc
include c:\masm32\include\masm32.inc
include c:\masm32\include\kernel32.inc
include c:\masm32\macros\macros.asm

includelib c:\masm32\lib\masm32.lib
includelib c:\masm32\lib\kernel32.lib

.code

start:

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print "Hello world"

exit

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end start

Is this correct?

I've never tried assembly before, and I come from a strong java background, so this is all very new to me.

Thanks.

n7yap

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Group: Members
Posts: 51
Member No.: 87
Joined: 10-June 04

The MASM32 print macro requires the address of a zero-terminated string like this:

CODE

print SADD("Hello World")

SADD is a macro that returns the address of the string.

If you're just starting out with MASM32, try writing your program without macros. You will learn more that way.

CODE

.DATA

szHello BYTE "Hello world", 0

.CODE

start:

invoke StdOut, ADDR szHello

invoke ExitProcess, 0

end start

shoorick

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Group: Admins
Posts: 2301
Member No.: 160
Joined: 22-June 04

No, of course not!

Try this instead:

CODE

.DATA
hello db "Hello World",0

.CODE

invoke MessageBox,0,ADDR hello,0,0
invoke ExitProcess,0

If you never used assembler before, first take a look at the examples, or create a project from the WinASm studio templates and play with it...

All languages have their specifications...

Good luck!

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