Having trouble linking...

[Cybrg641]

I am using Masm32 and am pretty new to Assembly, but I am having trouble trying to assemble and link this code:


;Io1.asm: Displays character that is entered on the keyboard

.model small
.stack 100h

.code
start:
mov ah,1h ;character input sub-program
int 21h ;call ms-dos to read character
;al now contains character from keyboard
mov dl,al ;read character from register al
mov ah,2h ;character output sub-program
int 21h ;call ms-dos to display character

mov ax,4c00h ;return to ms-dos
int 21h
end start


I keep getting an error message that says "LINK : error lnk2001: unresolved external symbol _start"

Please help...this is driving me crazy!!!!

[Cybrg641]

Anyone? please??

[Das Mad]

Use Pass32 instead you don't have to link and compile all
U have to do is to run the asm file with pass and u get a
Exe (or what ever u want) + Win32 exe and Win32 Dll. It's simple and good.

Microsoft never wanted anybody to know their Windows in assembler, that's why they stopped making MASM.
And give out VB and C++ instead. So that they can keep their
Deepest Windows Secrets.

Pass32 http://www.geocities.com/SiliconValley/Bay/3437/ Get the pdf Manual at the same site

[parksie]

Actually, MS still distribute MASM as part of the Windows DDK (Driver Development Kit).

[Jimbob42]

For a start, rename labels "_start" and "end _start"
After that (in my version anyway) you get more problems since you can't use interrupts in win32 programs. Try using a 16 bit assembler, or type it straight into DOS's debug program.
Here is a good site for win32 assembly: http://freeshell.org/~michael/