Print Page - Problems with a dword ptr

Title: Problems with a dword ptr
Post by: ragdog on September 12, 2009, 10:20:49 PM

Hi

I have a problem with store a 3 signs to a dword pointer and gives this to a subroutine


AddItem PROTO :DWORD,:DWORD,:DWORD

             .if eax==0
                     mov DWORD PTR [eax],    "(-;"
                     push eax
             	.else
             	     push offset hBuffer

             .endif
    
                  push offset hName2
	          push offset hName1
	          call AddItem

Thanks for your help

Title: Re: Problems with a dword ptr
Post by: qWord on September 12, 2009, 10:30:53 PM

you are accessing an invalid address:

Code Select


.if eax==0
	mov DWORD PTR [eax],"(-;"	; DWORD located at 0 ???
...

regards, qWord

Title: Re: Problems with a dword ptr
Post by: ragdog on September 12, 2009, 10:37:04 PM

Thanks

Must i set a buffer variable in the data section

can i this not make with register?

Title: Re: Problems with a dword ptr
Post by: qWord on September 12, 2009, 10:44:24 PM

not sure what you want to make, but what is about using an local string buffer:

Code Select


xyz proc .....
LOCAL szBuffer[4]:BYTE

	mov DWORD ptr szBuffer,";-("
	...
	.if eax == 0
		lea eax,szBuffer
		push eax
	...

xyz endp

Title: Re: Problems with a dword ptr
Post by: ragdog on September 12, 2009, 10:49:16 PM

Ok

Yes this works

My Question is can i make this without use a szString in the data section or buffer variable in the data? section ????

Title: Re: Problems with a dword ptr
Post by: qWord on September 12, 2009, 10:57:07 PM

if you want to pass a string pointer, you have to use an buffer containing your string.

Title: Re: Problems with a dword ptr
Post by: ragdog on September 12, 2009, 11:04:42 PM

Ahh ok thanks

this was my question

greets,
ragdog

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