Print Page - String Help

Title: String Help
Post by: Trope on March 24, 2005, 12:08:52 AM

Let's say I have a string:

myName db "trope",0

How would I loop through each character and perform some calculation on it? For instance, to make this simple, add 1 to each char's ascii code.

Thanks!

Trope

Title: Re: String Help
Post by: Phoenix on March 24, 2005, 02:37:31 AM

Hi Trope,

try something like this:

Code Select

.DATA
szName	db "trope",0

.CODE
_StringOp PROC 

	lea edx, szName
@@:	
        mov al, [edx]
	test al,al
	jz @F
	add BYTE PTR [edx],1
	inc edx
	jmp @B
@@: 
        invoke MessageBox,NULL,ADDR szName,ADDR szName,MB_OK

        xor eax,eax
	RET
	
_StringOp EndP

This will display the resulting string "uspqf". Hope it helps.

Regards, phoenix

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General Forums => The Campus => Topic started by: Trope on March 24, 2005, 12:08:52 AM