MASM Console Problems

MASM Console Problems - Beginner

Cody Harris

Member #4,406

March 2004

Well, I'm trying to get my feet wet with Assembly. I currently have this:

1.386
2.model flat,stdcall
3option casemap:none
4include \masm32\include\windows.inc
5include \masm32\include\kernel32.inc
6include \masm32\include\masm32.inc
7includelib \masm32\lib\masm32.lib
8includelib \masm32\lib\kernel32.lib
9include \masm32\include\user32.inc
10includelib \masm32\lib\user32.lib 
11 
12.data
13    HelloWorld db "Hello World!", 0
14    prog db "pause", 0
15 
16.code
17start:
18  invoke StdOut, addr HelloWorld
19  invoke Sleep, 1000
20  invoke ExitProcess, 0
21end start

But I'd like to cut it back to only the bare essentials (C doesn't need all the Win32 stuff to make a basic console app).

Most tutorials that say they work, well just havn't on my computer.

Help!

---------------------------------
Homepage - Art (Photography)
I'm QBasicer on #allegro on Freenode.

ReyBrujo

Moderator

January 2001

Don't use MASM, go for NASM or TASM.

--
RB
光子「あたしただ…奪う側に回ろうと思っただけよ」
Mitsuko's last words, Battle Royale

Cody Harris

Member #4,406

March 2004

I can't find any tutorials for NASM that actually seem to work.

I'd love it if you showed me one.

---------------------------------
Homepage - Art (Photography)
I'm QBasicer on #allegro on Freenode.

Steve Terry

Member #1,989

March 2002

I second NASM, but don't know of or have time to search for tutrials... sorry.

___________________________________
[ Facebook ]
Microsoft is not the Borg collective. The Borg collective has got proper networking. - planetspace.de
Bill Gates is in fact Shawn Hargreaves' ßî+çh. - Gideon Weems

A J

Member #3,025

December 2002

i wonder why you would want to learn ASM at all ?

___________________________
The more you talk, the more AJ is right. - ML

ReyBrujo

Moderator

January 2001

Ah, positive AJ's comment of the day :-P

--
RB
光子「あたしただ…奪う側に回ろうと思っただけよ」
Mitsuko's last words, Battle Royale

Cody Harris

Member #4,406

March 2004

I've tried using Dr. Carters IO stuff, but I get this:

Quote:

nasmw -f win32 -d COFF_TYPE nasmtest.s && nasmw -f win32 -d COFF_TYPE asm_io.
asm && ld -o test.exe asm_io.o nasmtest.o

1%include "asm_io.inc"
2bits 32
3segment .data
4vbanner  db  "Hello There", 0
5 
6segment .bss
7 
8segment .text
9  global _asm_main
10 
11_asm_main:
12  push ebp
13  mov ebp,esp
14  pusha 
15  mov eax,vbanner
16  call print_string
17  popa   
18  mov eax,0
19  mov esp,ebp            
20  pop ebp               
21  ret

Generates:

Quote:

c:\mingw\bin\ld.exe: warning: cannot find entry symbol _mainCRTStartup; defaulting to 00401000
asm_io.o(.text+0x10):asm_io.asm: undefined reference to `scanf'
asm_io.o(.text+0x2a):asm_io.asm: undefined reference to `printf'
asm_io.o(.text+0x41):asm_io.asm: undefined reference to `printf'
asm_io.o(.text+0x52):asm_io.asm: undefined reference to `getchar'
asm_io.o(.text+0x68):asm_io.asm: undefined reference to `putchar'
asm_io.o(.text+0x7d):asm_io.asm: undefined reference to `putchar'
asm_io.o(.text+0x14e):asm_io.asm: undefined reference to `printf'
asm_io.o(.text+0x174):asm_io.asm: undefined reference to `printf'
asm_io.o(.text+0x1a3):asm_io.asm: undefined reference to `printf'
asm_io.o(.text+0x1d0):asm_io.asm: undefined reference to `printf'
asm_io.o(.text+0x1ef):asm_io.asm: undefined reference to `printf'
asm_io.o(.text+0x207):asm_io.asm: more undefined references to `printf' follo

---------------------------------
Homepage - Art (Photography)
I'm QBasicer on #allegro on Freenode.

HoHo

Member #4,534

April 2004

What about HLA?

It even has a free downloadable book that I printed out, all of the ~1.8k pages of it

__________
In theory, there is no difference between theory and practice. But, in practice, there is - Jan L.A. van de Snepscheut
MMORPG's...Many Men Online Role Playing Girls - Radagar
"Is Java REALLY slower? Does STL really bloat your exes? Find out with your friendly host, HoHo, and his benchmarking machine!" - Jakub Wasilewski

Cody Harris

Member #4,406

March 2004

I'd like to actually learn some basic assembly logic in win32, and then try my hand at making a tiny TUI OS type thing.

---------------------------------
Homepage - Art (Photography)
I'm QBasicer on #allegro on Freenode.

ReyBrujo

Moderator

January 2001

Try this: Instead of _asm_main use _main, and instead of ld use gcc.

--
RB
光子「あたしただ…奪う側に回ろうと思っただけよ」
Mitsuko's last words, Battle Royale

HoHo

Member #4,534

April 2004

I think HLA is quite good for you then. You can have access to basic things like console or even winapi with relative ease and still program all other things in asm. If you really want you can probably do these simple things in pure asm too.

Cody Harris

Member #4,406

March 2004

No Good:

Quote:

$ nasmw -f win32 -d COFF_TYPE nasmtest.s && nasmw -f win32 -d COFF_TYPE asm_io.
asm && gcc -o test.exe asm_io.o nasmtest.o
nasmtest.o(.text+0x1a): In function `main':
: undefined reference to `printf'
/mingw/lib/libmingw32.a(main.o)(.text+0x106):main.c: undefined reference to `WinMain@16'
collect2: ld returned 1 exit status

I'd really like to learn ASM first, then maybe move to HLA later.

---------------------------------
Homepage - Art (Photography)
I'm QBasicer on #allegro on Freenode.

ReyBrujo

Moderator

January 2001

Hmm... I am not sure what asm_io.asm is doing. Try adding -mconsole, -Wl,subsystem,console I think.

--
RB
光子「あたしただ…奪う側に回ろうと思っただけよ」
Mitsuko's last words, Battle Royale

Cody Harris

Member #4,406

March 2004

I'm dumb (really).

I thought it was outputting to .o files, when it was really .obj files.

SOrry for the hastle .

Actually, I'd like to even further isolate it from C, go to pure ASM string calls.

Anybody know how to do this?

---------------------------------
Homepage - Art (Photography)
I'm QBasicer on #allegro on Freenode.