Re: [ros-dev] runtime time function question in freeldr

This is not an Intel syntax.
Operands in memory operations have inverted order:

mov src, dest

not

mov dest, src

thus eax == 0


Zhang Fan pisze:
>   Hi everybody,
>  I'm a newbie of ReactOS, and I've just looked a piece of code in freeldr module.
> I found some runtime function such as strstr(). I want to know if the run time lib should
> be initialized, and where the initialized code.
>  Another question is that a piece of code in arch.S
>  
>  
>  EXTERN(RealEntryPoint)
>  
>  //....
>  	.code32
>  
>  	/* Zero BootDrive and BootPartition */
>  	xorl	%eax,%eax
>  	movl	%eax,(_BootDrive)
>  	movl	%eax,(_BootPartition)
>  
>  	/* Store the boot drive */
>  	movb	%dl,(_BootDrive)
>  
>  	/* Store the boot partition */
>  	movb	%dh,(_BootPartition)
>  
>  	/* GO! */
>  	pushl	%eax
>  	call	_BootMain
>  
>  At there, I think %eax should equal zero, and BootMain will call CmdLineParse(),and
> CmdLineParse will call strstr(). So it cause strstr will receive a NULL parameter. Is it
> right?
>  
>  Thank you.
>  
>  Fan Zhang
>  
>  
>        
>  
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