Question about "Test" [Archive] - RCE Messageboard's Regroupment

yosef07212

September 24th, 2011, 12:58

Okay so....

Code:



006C8CD1     68 443B9E00         PUSH NAME.009E3B44                      ; ASCII "btn_slot_up"

006C8CD6     56                  PUSH ESI

006C8CD7     E8 C4A6D3FF         CALL NAME.004033A0

006C8CDC     83C4 08             ADD ESP,8

006C8CDF     84C0                TEST AL,AL

006C8CE1     74 16               JE SHORT NAME.006C8CF9

006C8CE3     8B0D 98CDB500       MOV ECX,DWORD PTR DS:[B5CD98]

006C8CE9     8B01                MOV EAX,DWORD PTR DS:[ECX]

006C8CEB     FF50 4C             CALL DWORD PTR DS:[EAX+4C]

006C8CEE     B0 01               MOV AL,1

006C8CF0     5F                  POP EDI                                    ; ntdll.778E34C0

006C8CF1     5E                  POP ESI                                    ; ntdll.778E34C0

006C8CF2     5B                  POP EBX                                    ; ntdll.778E34C0

006C8CF3     83C4 1C             ADD ESP,1C

006C8CF6     C2 0800             RETN 8

006C8CF9     68 503B9E00         PUSH NAME.009E3B50                      ; ASCII "btn_slot_down"

006C8CFE     56                  PUSH ESI

006C8CFF     E8 9CA6D3FF         CALL NAME.004033A0

006C8D04     83C4 08             ADD ESP,8

006C8D07     84C0                TEST AL,AL

006C8D09     74 16               JE SHORT NAME.006C8D21

006C8D0B     8B0D 98CDB500       MOV ECX,DWORD PTR DS:[B5CD98]

006C8D11     8B11                MOV EDX,DWORD PTR DS:[ECX]

006C8D13     FF52 50             CALL DWORD PTR DS:[EDX+50]

006C8D16     B0 01               MOV AL,1

006C8D18     5F                  POP EDI                                    ; ntdll.778E34C0

006C8D19     5E                  POP ESI                                    ; ntdll.778E34C0

006C8D1A     5B                  POP EBX                                    ; ntdll.778E34C0

006C8D1B     83C4 1C             ADD ESP,1C

006C8D1E     C2 0800             RETN 8

006C8D21     5F                  POP EDI                                    ; ntdll.778E34C0

006C8D22     5E                  POP ESI                                    ; ntdll.778E34C0

006C8D23     32C0                XOR AL,AL

006C8D25     5B                  POP EBX                                    ; ntdll.778E34C0

006C8D26     83C4 1C             ADD ESP,1C

006C8D29     C2 0800             RETN 8

So I wanted to add 1 more option 0-1-2 insted of 0-1
So I made it like this, but i'm not sure it would work since idk how the "Test" command works.

Code:



00B8A020    68 443B9E00     PUSH NAMEl.009E3B44                   ; ASCII "btn_slot_up"

00B8A025    56              PUSH ESI

00B8A026    E8 759387FF     CALL NAMEl.004033A0

00B8A02B    83C4 08         ADD ESP,8

00B8A02E    3C 00           CMP AL,0

00B8A030    74 08           JE SHORT NAMEl.00B8A03A

00B8A032    3C 01           CMP AL,1

00B8A034    74 1A           JE SHORT NAMEl.00B8A050

00B8A036    3C 02           CMP AL,2

00B8A038    74 2C           JE SHORT NAMEl.00B8A066

00B8A03A    8B0D 98CDB500   MOV ECX,DWORD PTR DS:[B5CD98]

00B8A040    8B01            MOV EAX,DWORD PTR DS:[ECX]

00B8A042    FF50 4C         CALL DWORD PTR DS:[EAX+4C]

00B8A045    B0 01           MOV AL,1

00B8A047    5F              POP EDI

00B8A048    5E              POP ESI

00B8A049    5B              POP EBX

00B8A04A    83C4 1C         ADD ESP,1C

00B8A04D    C2 0800         RETN 8

00B8A050    8B0D 98CDB500   MOV ECX,DWORD PTR DS:[B5CD98]

00B8A056    8B01            MOV EAX,DWORD PTR DS:[ECX]

00B8A058    FF50 4C         CALL DWORD PTR DS:[EAX+4C]

00B8A05B    B0 02           MOV AL,2

00B8A05D    5F              POP EDI

00B8A05E    5E              POP ESI

00B8A05F    5B              POP EBX

00B8A060    83C4 1C         ADD ESP,1C

00B8A063    C2 0800         RETN 8

00B8A066    5F              POP EDI

00B8A067    5E              POP ESI

00B8A068    32C0            XOR AL,AL

00B8A06A    5B              POP EBX

00B8A06B    83C4 1C         ADD ESP,1C

00B8A06E    C2 0800         RETN 8

00B8A071    90              NOP

00B8A072    90              NOP

00B8A073    68 503B9E00     PUSH NAMEl.009E3B50                   ; ASCII "btn_slot_down"

00B8A078    56              PUSH ESI

00B8A079    E8 229387FF     CALL NAMEl.004033A0

00B8A07E    83C4 08         ADD ESP,8

00B8A081    3C 00           CMP AL,0

00B8A083    74 1E           JE SHORT NAMEl.00B8A0A3

00B8A085    3C 01           CMP AL,1

00B8A087  ^ 74 DD           JE SHORT NAMEl.00B8A066

00B8A089    90              NOP

00B8A08A    90              NOP

00B8A08B    90              NOP

00B8A08C    90              NOP

00B8A08D    8B0D 98CDB500   MOV ECX,DWORD PTR DS:[B5CD98]

00B8A093    8B01            MOV EAX,DWORD PTR DS:[ECX]

00B8A095    FF50 50         CALL DWORD PTR DS:[EAX+50]

00B8A098    B0 01           MOV AL,1

00B8A09A    5F              POP EDI

00B8A09B    5E              POP ESI

00B8A09C    5B              POP EBX

00B8A09D    83C4 1C         ADD ESP,1C

00B8A0A0    C2 0800         RETN 8

00B8A0A3    8B0D 98CDB500   MOV ECX,DWORD PTR DS:[B5CD98]

00B8A0A9    8B01            MOV EAX,DWORD PTR DS:[ECX]

00B8A0AB    FF50 50         CALL DWORD PTR DS:[EAX+50]

00B8A0AE    B0 02           MOV AL,2

00B8A0B0    5F              POP EDI

00B8A0B1    5E              POP ESI

00B8A0B2    5B              POP EBX

00B8A0B3    83C4 1C         ADD ESP,1C

00B8A0B6    C2 0800         RETN 8

Thx :P

live_dont_exist

September 25th, 2011, 09:31

Your thread is not clear as no one has the background of the problem, like you do, having studied the code in detail etc. If you could describe your problem a little better, it might help and someone could try and help.

Cheers
Arvind

yosef07212

September 25th, 2011, 09:32

Well it's just if I can use "CMP al" insted of "Test al,al"

live_dont_exist

September 25th, 2011, 09:37

Shouldn't that be a simple Google? Like..

http://webster.cs.ucr.edu/AoA/DOS/ch09/CH09-6.html#HEADING6-83

http://www.creative.net.au/mirrors/asm/CH06/CH06-2.html#HEADING2-244

Arvind

blabberer

September 26th, 2011, 00:03

google first hit you can even use im feeling lucky to go to this page directly

search query

/search?q=test+al+.+al+vs+cmp+al.al

Code:





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TEST vs CMP ...

www.masm32.com/board/?PHPSESSID...topic=1811.0

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http://www.masm32.com/board/?&topic=1811.0