Changes

The IPC commands are written to the Thread Local Storage, at offset 0x80. Every IPC command sent to services starts with a u32 header code, and parameters, if any, are written after this header. If the kernel was able to dispatch the request, the server replies with an error code at TLS+0x84, and after this code there is the response data, if any.

The IPC commands are written to the Thread Local Storage, at offset 0x80. Every IPC command sent to services starts with a u32 header code, and parameters, if any, are written after this header. If the kernel was able to dispatch the request, the server reply will be written to TLS+0x80. Often the first word of the response data is the error code (or 0 if success).

The command header is a 32-bit integer that can be decompossed in the following parts:

The command header is a 32-bit integer that can be decompossed in the following parts: