WHERE IS MY CODE AT ORG 401000?

[StudioC]

*************** WHERE IS MY CODE AT ORG 401000? ******************

Dear TEK-TIPPERS,

I scratch my head and call it a day. The next day I find TEK-TIPS.COM
and I decide to send this dumb question. What am I doing wrong? How can
I fix it? What can be missing? This is my first time trying to assemble
anything since my old 8080/Z80/Varian/Interdata days... Can anybody help
me? Please?

(WHAT I DID ----->)

When I assemble with Masm I do this:

D:\New assembler stuff\GoAsm>ml /coff test.asm
Microsoft (R) Macro Assembler Version 6.15.8803
Copyright (C) Microsoft Corp 1981-2000. All rights reserved.

Assembling: test.asm
Microsoft (R) Incremental Linker Version 6.00.8447
Copyright (C) Microsoft Corp 1992-1998. All rights reserved.

"test.obj"
"/OUT:test.exe"
LINK : fatal error LNK1561: entry point must be defined

So, Now I have an .OBJ file, I try this:

D:\New assembler stuff\GoAsm>link /SUBSYSTEM:WINDOWS /ENTRY:main test.obj
Microsoft (R) Incremental Linker Version 6.00.8447
Copyright (C) Microsoft Corp 1992-1998. All rights reserved.

LINK : error LNK2001: unresolved external symbol _main
test.exe : fatal error LNK1120: 1 unresolved externals

So I try this:

D:\New assembler stuff\GoAsm>link /SUBSYSTEM:WINDOWS /ENTRY:start test.obj
Microsoft (R) Incremental Linker Version 6.00.8447
Copyright (C) Microsoft Corp 1992-1998. All rights reserved.

LINK : error LNK2001: unresolved external symbol _start
test.exe : fatal error LNK1120: 1 unresolved externals

Then this:

D:\New assembler stuff\GoAsm>d:\borland\bcc55\bin\ilink32 test.obj
Turbo Incremental Link 5.00 Copyright (c) 1997, 2000 Borland
Error: 'D:\NEW ASSEMBLER STUFF\GOASM\TEST.OBJ' contains invalid OMF record,
type 0x4c (possibly COFF)

So I try:

D:\New assembler stuff\GoAsm>..\golink\golink test.obj

GoLink.Exe Version 0.22 - Copyright Jeremy Gordon 2002/3 - JG@JGnet.co.uk
Output file: test.exe size: 4,342,784 bytes

But of course the .EXE file does not work.......

So...I try to debug...

Microsoft (R) Windows Debugger Version 6.2.0013.1
Copyright (c) Microsoft Corporation. All rights reserved.

CommandLine: D:\New assembler stuff\GoAsm\test.exe
Symbol search path is: E:\Program Files\Debugging Tools for Windows\symbols
Executable search path is:
ModLoad: 00400000 00827000 image00400000
ModLoad: 77f80000 77ffb000 ntdll.dll
(6a0.6bc): Break instruction exception - code 80000003 (first chance)
eax=00000000 ebx=00131f04 ecx=00000009 edx=00000000 esi=7ffdf000 edi=00131f70
eip=77fa144b esp=0012f984 ebp=0012fc98 iopl=0 nv up ei pl nz na pe nc
cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00000202
*** WARNING: symbols timestamp is wrong 0x3ef274dc 0x3d3d0209 for ntdll.dll
ntdll!RtlUpcaseUnicodeToMultiByteN+0x40e:
77fa144b cc int 3

And then:

!run
ntdll!RtlUpcaseUnicodeToMultiByteN+0x40e:
77fa144b cc int 3
0:000> g
(6a0.6bc): Access violation - code c0000005 (first chance)
First chance exceptions are reported before any exception handling.
This exception may be expected and handled.
eax=00813cbf ebx=7ffdf000 ecx=00877b90 edx=00070000 esi=00000000 edi=0291f788
eip=7c4e87b3 esp=0012fffc ebp=00000000 iopl=0 nv up ei pl nz na pe nc
cs=001b ss=0023 ds=0023 es=0023 fs=0038 gs=0000 efl=00010202
7c4e87b3 ?? ???

!offset:00401000
00401000 0000 add [eax],al
00401002 0000 add [eax],al
00401004 0000 add [eax],al
00401006 0000 add [eax],al
00401008 0000 add [eax],al
0040100a 0000 add [eax],al
0040100c 0000 add [eax],al

Where is my code at org 401000?

(See the top of the .ASM file below)

Thanks in advance for any help that you can offer.

Best Regards,

--Grace

; **************************************************

; This file is the header file that I am using
; File Name : TEST.ASM
; Format : WINDOWS 2000
;. (virtual address 00001000)
; Virtual size : 0001A700 (Big)
; Section size in file : 0001B000 (Big)
; Offset to raw data for section: 00001000
; Alignment : 16 bytes ?

.486

.model flat

_text segment para public 'CODE' use32
assume cs:_text
assume es:nothing, ss:nothing, ds:_data, fs:nothing, gs:nothing

org 401000h

; *************** Code Begins Here *****************

_start:

main:

sub esp, 8
push esi
xor esi, esi
call ds:GetThreadLocale
.....
.....
call Aother

; Etc..............

; **************** Another ******************

align 16

Another:
.....
.....
retn

; Etc...........

; *********************************************
-eof-

Thanks Again,

-Grace

 

[oleksii]

why do u need org 401000 directive? that's what makes ur exe so huge: 401000h = 4198400 decimal. looks u r confused with virtual address.. NO NEED to bother where ur code is to be loaded - this is up to windows loader, as i can recall. many win32 pragrams are loaded to THIS address (in fact, they have RVA 1000 and loaded to 400000) but it can be almost anything under 2M.
was i any help?
i think u should consult izcelion win32 assembly pages.
good luck

ps things will looks much clearer if u try to get in with a debugger, i advice a Numega one

 

[qingjin]

You can try use "end _start" instead of the appointment in the compiler's parameters.