Author Topic: Strange problem  (Read 8379 times)

nobody

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Strange problem
« on: August 26, 2008, 08:32:24 AM »
Hi,below is part of my program.
It did work yesterday, but it can't be compiled sucessfully today.
THe error message is:
1501.asm:32: error: unrecognised special symbol `..start'
What's wrong? I spend lots of time, but still can't figure it out.

Compiler:nasm-0.98.39-win32
IDE:NASMIDE 1.8

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
        SEGMENT code
%include        "dispstr.mac"
%include        "dispb.mac"
%include        "newline.mac"
..start:
        mov     AX,data
        mov     DS,AX
        mov     AX,mystack
        mov     SS,AX
        mov     SP,stacktop
..............
..............
..............
end:
        mov     AX,4c00H
        int     21H

SEGMENT data
status  DW      0
RS      DB      0
PP      DB      0
..............
..............
..............
        SEGMENT mystack stack
        RESB    64
stacktop:

Offline Frank Kotler

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Re: Strange problem
« Reply #1 on: August 26, 2008, 01:58:27 PM »
Sorry, Nasm only works on odd-numbered days.

Seriously... Same Nasm? Same code? How about the command line to Nasm? Nasm recognises the "special symbol ..start" in "-f obj" output format - any other output format would produce that message.

You mention NasmIde (Valuable antique! Does that still work? Did yesterday, I take it...). IIRC, the output format is set in a "check box" in NasmIde. Make sure that's still set for "-f obj".

That's the only thing I can think of that would account for your problem. If you're telling Nasm "-f obj" and still seeing that error... get back to us!

Best,
Frank

nobody

  • Guest
Re: Strange problem
« Reply #2 on: August 27, 2008, 02:35:02 AM »
Oops!!Even the 'hello world' can't be compiled again!!

I downloaded the nasm-2.03.01.zip & nasm-2.03.01-win32.zip this morning, and compile the hello.asm in DOS prompt directly.

D:\NASM\asm\Arthur>nasm hello.asm -l hello.lst
hello.asm:3: error: unrecognised special symbol `..start'
hello.asm:22: warning: label alone on a line without a colon might be in error

D:\NASM\asm\Arthur>nasm -fobj hello.asm
hello.asm:22: warning: label alone on a line without a colon might be in error

Shows the error message.Strange....

System problem?

;;;;;;;;;;;;;;;;;;hello.asm;;;;;;;;;;;
        SEGMENT code

..start:
        mov     AX,data
        mov     DS,AX
        mov     AX,mystack
        mov     SS,AX
        mov     SP,stacktop

mov     DX,msg
        mov     AH,09H
        int     21H

mov     AX,4c00H
        int     21H

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
        SEGMENT data
msg     DB      'Hello World!!','$'
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
        SEGMENT mystack stack
        RESB64
stacktop:
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

Offline Frank Kotler

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Re: Strange problem
« Reply #3 on: August 27, 2008, 05:42:30 AM »
Command line problem.

nasm -f obj blablabla

!!!

The special symbol "..start" is recognised only in "-f obj" output format.

The other error (only a warning... but pay attention, it's an error!) is because you need a space between "resb" and "64".

Best,
Frank