Cheat Engine

[kcxptmxm]

if i put cods and try to write code it shows "NOt all instructions could not be injected"... what is worng with that?;;

[Dark Byte]

ok, i'm assuming you're using a official cheat engine version and not one made by other people.

Make sure the address you specify for your auto assembler is valid.
e.g:
0a1234cd:
mov eax,ebx
mov ebx,ecx
mov ecx,edx

is only valid if 0a1234cd is a valid address

and of course, don't forget to add the address specifier. without it it also won't work. (by default it'll then try to write to 00000000 which IS invalid)