Append a charcter after a word (2 bytes), I want to add after every two bytes (word) the character that i want - I have tried MOV WORD PTR DS:[EDX],'X'

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xspider

Very Active Member

Group: Members
Posts: 64
Member No.: 10609
Joined: 27-July 08

hi all

can someone help me with this

CODE

LEA EBX,szInput
XOR EDX,EDX
LEA EDX,szOutput
XOR ECX,ECX
@@:
MOVZX ECX,WORD PTR DS:[EBX]
MOV WORD PTR DS:[EDX],CX
;HERE I WAN'T TO ADD AN X AFTER THE WORD
INC EDX
DEC EAX
JNZ @B

well i guess i didn't explain better what i wan't is to add after every two bytes (word) the character that i wan't i've tryied MOV WORD PTR DS:[EDX],'X' but didn't work

and thx in advance


xspider
Very Active Member Group: Members Posts: 64 Member No.: 10609 Joined: 27-July 08	this coded is buggy it gives 11111111112 as result for 1234567890 anyway what i wan't is like that 12x34x56x78x90

ragdog

Extremely Active Member

Group: Moderators
Posts: 873
Member No.: 5019
Joined: 13-May 07

Hi Spider

Out is this what you want
12x34x56x78x90

CODE

.data
szNumber db "1234567890",0
.data?

Buffer db 15 dup (?)

.code
pushad
xor edx,edx
xor ecx,ecx
lea esi,szNumber
lea edi, Buffer
mov edx,2
.while byte ptr [esi] != 0
.if ecx==edx
mov byte ptr [edi],'x'
add edx,2
.if byte ptr [esi]=='x'
inc esi
.endif
inc edi
.endif
movsb ;copy a byte from szNumber (esi) to Buffer (edi)
inc ecx
.endw
mov byte ptr[edi],0
invoke MessageBox,0,addr Buffer,0,MB_OK
popad

greets


xspider
Very Active Member Group: Members Posts: 64 Member No.: 10609 Joined: 27-July 08	thank you mate for your help

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