Skip to content

Cleaver changed to clever #9

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
wants to merge 1 commit into
base: master
Choose a base branch
from
Open

Cleaver changed to clever #9

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 1 addition & 1 deletion readme.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -8,7 +8,7 @@ The idea is simple: *what if you could take the Xbox360 game and run it on your

- **Memory Layout** - Xbox360 uses BigEndian byte ordering, x86 CPUs use LittleEndian. To be compatible with incoming data that is being read from files and read/written into the memory all memory based operands must be byteswapped. This may pose a significant performance issue.

- **Encrypted executable image** - Yup, for various reasons the executables on Xbox360 are encrypted. There are some cleaver guys in Russia though that figured how :)
- **Encrypted executable image** - Yup, for various reasons the executables on Xbox360 are encrypted. There are some clever guys in Russia though that figured how :)

- **Different and outdated GPU architecture** - If we want to see any graphics rendered the GPU needs to be emulated. Ther are two hard nuts to crack: first, the shaders we see will be complied into the GPU compatible format, no HLSL on input, sorry. Those shaders will have to be reverse engineered as well. Secondly, the Xbox360 GPU was using ~10MB of internal memory called EDRAM that was serving as a temporary storage of render target for the duration of rendering. Although some card today still use similar concept this is never exposed directly to the user. Since there a lot of differnt ways people used the EDRAM on Xbox this part has to be emulated. To be honest probably differently for every game.

Expand Down