Hardware/IPC
< Hardware
Jump to navigation
Jump to search
| This is an old revision of this page, as edited by Bushing (talk | contribs) at 03:56, 26 February 2009. It may differ significantly from the current revision. |
| IPC | |
| Hollywood Registers | |
| Access | |
|---|---|
| Broadway | Partial |
| Starlet | Full |
| Registers | |
| Base | 0x0d800000 |
| Length | 0x10 |
| Access size | 32 bits |
| Byte order | Big Endian |
| IRQs | |
| Broadway | 14 |
| This Hardware-related article is a stub. You can help WiiBrew by expanding it. |
| base | function | offset | description | contents/example |
|---|---|---|---|---|
| 0x0D800000 | IPC | reg 0: request pointer | To make an IOS request, the physical address of an IOS command struct is written here by the Broadway. Then, Broadway sets bit 0 of IPC reg 1 to indicate a request is ready. | |
| 0x0D800004 | IPC | reg 1: semaphore flags | Broadway sets bits here as "doorbells" to indicate status; Starlet responds by setting flags here. | |
| 0x0D800008 | IPC | reg 2: Reply pointer | When an IOS request has completed, IOS will modify the original command struct passed in IPC reg 0, copy that pointer to reg 2, then set reg 1 to 0x14 to indicate a reply is ready. |