Cheat Engine

Silhouette · Posted: Sat Oct 31, 2009 10:53 pm Post subject: Difficult Value Type

Hey,

I've been trying to figure out a way to work with the 2-Byte value type. See, I'm a bit of a retro-gamer, and all of my retro-games use 2-byte values. To start, I can't change the value of a 2-byte address to anything over 255. I've already been told why this is, but I'd like to know how I can work around it. Also, I'm wondering if pointers work any differently with 2-byte values, beacuse I can't seem to land a working pointer. Maybe this is because pointers are 4-byte values? I don't know. Could someone please fill me in here? I'm not just after the solution, I want to know WHY it works, too.

Dark Byte · Posted: Sun Nov 01, 2009 5:42 am Post subject:

I think you mean 1 byte, 2 byte has a limit of 65535

if the game still doesn't see it higher than 255, then it's actually a 1 byte value inside the game itself, unless...

is it a game running inside an emulator ? And if so, what system is it emulating ?
What you can try is changing the 1 byte address before the address you found, and change that. So if your address was 12345678 you'd change address 12345677 to a different value. (1 byte long)

and yes, normal pointers are useless. If it's a 16-bit game it's using segment selectors and offsets instead of a virtual address
addressing address 50000 would be stored as 5000 : 0000 (or 4fff:0010, or any other segment type notation)

Silhouette · Posted: Mon Nov 02, 2009 6:58 pm Post subject:

Hey, sorry I took so long replying, something came up. Yes I am using an emulator, it's called "Fusion". Fusion is emulating the Sega Genesis system. Also, you said that I could change the address just before my 1 Byte address. What number system would I input the value in? Decimal, Hexadecimal, Binary? And what value type would this new address be?