Hardware/Espresso

From WiiUBrew
Jump to navigation Jump to search

Espresso is the code name for the Wii U's PowerPC processor.

Special Purpose Registers

Index Name Description
0x1 XER
0x8 LR
0x9 CTR
0x12 DSISR
0x13 DAR
0x16 DEC
0x19 SDR1
0x1A SRR0
0x1B SRR1
0x10C UTBL
0x10D UTBU
0x110 SPRG0
0x111 SPRG1
0x112 SPRG2
0x113 SPRG3
0x11A EAR
0x11C TBL
0x11D TBU
0x11F PVR
0x210 IBAT0U
0x211 IBAT0L
0x212 IBAT1U
0x213 IBAT1L
0x214 IBAT2U
0x215 IBAT2L
0x216 IBAT3U
0x217 IBAT3L
0x218 DBAT0U
0x219 DBAT0L
0x21A DBAT1U
0x21B DBAT1L
0x21C DBAT2U
0x21D DBAT2L
0x21E DBAT3U
0x21F DBAT3L
0x230 IBAT4U
0x231 IBAT4L
0x232 IBAT5U
0x233 IBAT5L
0x234 IBAT6U
0x235 IBAT6L
0x236 IBAT7U
0x237 IBAT7L
0x238 DBAT4U
0x239 DBAT4L
0x23A DBAT5U
0x23B DBAT5L
0x23C DBAT6U
0x23D DBAT6L
0x23E DBAT7U
0x23F DBAT7L
0x380 UGQR0
0x381 UGQR1
0x382 UGQR2
0x383 UGQR3
0x384 UGQR4
0x385 UGQR5
0x386 UGQR6
0x387 UGQR7
0x388 UHID2
0x389 UWPAR
0x38A UDMAU
0x38B UDMAL
0x390 GQR0
0x391 GQR1
0x392 GQR2
0x393 GQR3
0x394 GQR4
0x395 GQR5
0x396 GQR6
0x397 GQR7
0x398 HID2
0x399 WPAR
0x39A DMA_U
0x39B DMA_L
0x3A8 UMMCR0
0x3A9 UPMC1
0x3AA UPMC2
0x3AB USIA
0x3AC UMMCR1
0x3AD UPMC3
0x3AE UPMC4
0x3B0 HID5
0x3B2 PCSR
0x3B3 SCR
0x3B4 CAR
0x3B5 BCR
0x3B6 WPSAR
0x3B8 MMCR0
0x3B9 PMC1
0x3BA PMC2
0x3BB SIA
0x3BC MMCR1
0x3BD PMC3
0x3BE PMC4
0x3D0 DCATE
0x3D1 DCATR
0x3D8 DMATL0
0x3D9 DMATU0
0x3DA DMATR0
0x3DB DMATL1
0x3DC DMATU1
0x3DD DMATR1
0x3EF UPIR CPU core index (Processor Index Register)
0x3F0 HID0
0x3F1 HID1
0x3F2 IABR
0x3F3 HID4
0x3F4 TDCL
0x3F5 DABR
0x3F9 L2CR
0x3FA TDCH
0x3FB ICTC
0x3FC THRM1
0x3FD THRM2
0x3FE THRM3
0x3FF PIR

HID5

Bit Description
0 Enable HID5
1 Enable PIR

SCR

Bit Description
1 Enable bootrom (reset only)
2 Enable keystore 00..1f (reset only)
3 Enable keystore 20..3f (reset only)
9 Start core 1
10 Start core 2

vWii Mode Clock

While entering in vWii mode, Cafe2Wii reboots the PPC and sets the clock multiplier to 3x. This can be disabled by changing in Cafe2Wii an OR 0x20 to BIC 0x20 in LT_MEMCMPT and an OR 0x99 to OR 0x9D in LT_SYSPROT.