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All of these registers are initialized by the ARM11 kernel, except for REG_MENUTID and REG_ACTIVEMENUTID which are set by NS.
=== REG_NSTID ===
=== REG_NSTID ===
This register contains the titleID of the first title to launch after various system processes loaded.(This is normally the [[NS]] module titleID) If this register titleID is all-zero, the system will not attempt to launch the title.
This register contains the titleID of the first title to launch after the core system processes loaded. If this register titleID is all-zero, the system will not attempt to launch the title. The regular ARM11 kernel sets this to the regular [[NS]] titleID, while the SAFE_MODE ARM11 kernel sets this to the SAFE_MODE NS titleID.
=== REG_SYSCOREVER ===
=== REG_SYSCOREVER ===
When launching [[NCCH#CXI|CXIs]], this register value must match the core version field stored in the CXI exheader. If they do not match, the system will refuse to launch the process.
When launching [[NCCH#CXI|CXIs]], this register value must match the core version field stored in the CXI exheader. If they do not match, the system will refuse to launch the ARM11 process. The regular ARM11 kernel sets this to 0x2, while the SAFE_MODE ARM11 kernel sets this to 0x3.
=== REG_UNITINFO ===
=== REG_UNITINFO ===
|-
|-
| 0
| 0
| Set for retail, clear for dev/debug?
| ?
|-
| 1
| ?
|-
| 2
| Set for debug units
|-
|-
| 1-7
| 3-7
| [[NS]] loads the menu TID from REG_MENUTID when this is clear
| ?
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Normally this register is all-zero, however bit2 in this register is set by the ARM11 kernel when ARM debug CP14 DSCR bit14 is set. [[NS]] loads the menu TID from REG_MENUTID when bits 1-7 of this register are clear.
=== REG_MENUTID ===
=== REG_MENUTID ===
=== REG_ACTIVEMENUTID ===
=== REG_ACTIVEMENUTID ===
This contains the titleID of the currently running menu launched by [[NS]]. Normally this is the home menu TID from REG_MENUTID, but if launching that fails this titleID is the [[NS#Alternate Menu|alternate menu]].(On dev units this is the TID loaded from [[Config Info Blocks|config]])
This contains the titleID of the currently running menu launched by [[NS]]. Normally this is the home menu TID from REG_MENUTID, but if launching that fails this titleID is the [[NS#Alternate Menu|alternate menu]].(On debug units this is the TID loaded from [[Config Info Blocks|config]])