I am a Chinese studio in middle school.Perhaps Some mistake on Grammer or  
 word spending will be wrote in this letter.


I use gcc 3.3.4 to build a file.

the file is shown below.

.code16
.text

.globl start
start:
        movw $0x0000,%ax

.org 510
.word 0xAA55

I build it with the command below.

gcc -traditional -c -nostdinc -o boot.o boot.s
ld -Ttext 0x0000 -s --oformat binary -o boot.bin boot.o

When I built it,I found the size of boot.bin is not 512byte,is 1024byte.

I think it is some error in this.

And 

I thinke the code before is like this.

.code16
.text

.global _start
_start:
        movw $0x0000,%ax

.org 510
.word 0xAA55

but I couldn't buld it success by Djgpp in Windows XP

Thank you for your reading.
I wait for your return.

                                              Huangxiangkui
                                        email:Huangxiangkui@msn.com

This is not a problem with DJGPP.

Tell ld to generate a link map file (-Map option) to understand the
problem.

(You need to provide your own link script file.)


Right,

                                    MartinS

But how can I do?

Can you give me an example?

The -Map option to ld?