Cheat Engine

Shikakapoop

I'll explain everything first.

The code I'm wanting to change is
00424782 movss [esi+00000084],xmm0

Simply replacing it with a few nops works (does what I wanted it to do ingame) through the code list options, but actually assembling the line (for disable reasons) "movss [esi+00000084],xmm0" doesn't work, I get "This instruction can't be compiled".

I'm guessing it's the xmm0. Is CE not recognizing the xmm0 as a register? That's what it is right? If not, what is it? :\

Also I need to know if this code will work in the first place, I followed Labrynth's tutorial, and I wanted to try out using codecaves (though it's not really necessary for a nop code I guess).
I want it to jump to the code cave and just do nothing instead of.. movss'ing my xmm0 lol.

compactwater · Posted: Mon Jul 16, 2007 7:17 pm Post subject:

Try using 'db' if you're sure it's a valid code.

Shikakapoop · Posted: Mon Jul 16, 2007 7:22 pm Post subject:

Labyrnth · Moderator Reputation: 10 Joined: 28 Nov 2006 Posts: 6300

Shikakapoop · Posted: Tue Jul 17, 2007 11:07 am Post subject:

xCodex · Posted: Tue Jul 17, 2007 11:50 am Post subject:

Holy crap, what kind of processor do you have?
I think it's a 128-bit XMM register...

Labyrnth · Moderator Reputation: 10 Joined: 28 Nov 2006 Posts: 6300

Pentium 4 and Xeon processors

128 bit register.

(switch xmm pane to "byte" view)
MOVDQU XMM0,[DQWORD_VALUE1] ;give 1st tester values to XMM0

Google is your friend:

Shikakapoop · Posted: Tue Jul 17, 2007 9:14 pm Post subject:

sponge · Posted: Tue Jul 17, 2007 11:10 pm Post subject:

most likley it is a byte >mnemonic mistranslation.

xCodex · Posted: Wed Jul 18, 2007 10:10 am Post subject:

:O DARK BYTE MMAADDEE ANN EEERRRROOORRRR.