Hardware/Espresso
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Espresso is the code name for the Wii U's PowerPC processor.
Special Purpose Registers
| Index | Name | Description |
|---|---|---|
| 0x3b0 | HID5[0] | Enable HID5 |
| 0x3b0 | HID5[1] | Enable PIR |
| 0x3B3 | SCR[1] | Enable bootrom (reset only) |
| 0x3B4 | SCR[2] | Enable keystore 00..1f (reset only) |
| 0x3B5 | SCR[3] | Enable keystore 20..3f (reset only) |
| 0x3BB | SCR[9] | Start core 1 |
| 0x3BC | SCR[10] | Start core 2 |
| 0x3EF | PIR | CPU core index (Processor Index Register) |