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Line 328: − − The interrupt data pointer is a pointer to the object that handles that interrupt. The first first word in the object is a pointer to the object's vtable and the first function in the vtable is the interrupt handler for that interrupt number. When an interrupt runs, the function is passed its object in r0 and the interrupt number in r1. Line 313:
Line 338: − + − + − + − + − |- − | 0x704 − | s16 − | Error tracker for thread above − |- − | 0x706 − | u16 − | Alignment − |} − − − = InterruptEvent = − {| class="wikitable" border="1" − |- − ! Offset − ! Type − ! Description − |- − | 0x0 − | u32 − | Pointer to interrupt event object − |- − | 0x4 − | u32 − | Interrupt flags
→Hardware Interrupts: Confirmed.
== Interrupts ==
== Interrupts ==
Interrupt priority is 0-0xF
Interrupt priority is 0-0xF. A priority of 0xF means that the interrupt is disabled.
= Private Interrupts =
= Private Interrupts =
! Description
! Description
|-
|-
| 0-0x5
| 0-0x3
|
|
| MPCore software-interrupt.
| MPCore software-interrupt. Not configured.
|-
| 0x4
| Kernel
| MPCore software-interrupt. Used to manage the performance counter.
|-
| 0x5
| Kernel
| MPCore software-interrupt. Does apparently nothing.
|-
|-
| 0x6
| 0x6
| Kernel
| Kernel
| MPCore software-interrupt.
| MPCore software-interrupt. Extensively used by [[SVC|KernelSetState]] (and contains most of the actual code of the latter).
|-
|-
| 0x7
| 0x7
|
| Kernel
| MPCore software-interrupt.
| MPCore software-interrupt. See [[KCacheMaintenanceInterruptEvent]]
|-
|-
| 0x8
| 0x8
| MPCore software-interrupt. Used for scheduling.
| MPCore software-interrupt. Used for scheduling.
|-
|-
| 0x9-0xE
| 0x9
|
| Kernel
| MPCore software-interrupt.
| MPCore software-interrupt. Used when handling exceptions that require termination of a thread or a process, and in some cases by svcSetDebugThreadContext, to store VFP registers in the thread's register storage.
|-
| 0xA
| Kernel
| TLB operations interrupt, see [[KTLBOperationsInterruptEvent]]
|-
| 0xB-0xE
|
| MPCore software-interrupt. Not configured.
|-
|-
| 0xF
| 0xF
| dmnt/debugger
| dmnt/debugger
| MPCore software-interrupt. Used to abstract FIQ (debug).
| MPCore software-interrupt. Used to abstract FIQ (debug). This interrupt is never sent to core2 nor core3 on N3DS.
|-
|-
| 0x1D
| 0x1D
| 0x28
| 0x28
| gsp, TwlBg
| gsp, TwlBg
| PSC0?
| PSC0
|-
|-
| 0x29
| 0x29
| gsp, TwlBg
| gsp, TwlBg
| PSC1?
| PSC1
|-
|-
| 0x2A
| 0x2A
| gsp, TwlBg
| gsp, TwlBg
| PDC0?
| PDC0 (VBlank0)
|-
|-
| 0x2B
| 0x2B
| gsp, TwlBg
| gsp, TwlBg
| PDC1?
| PDC1 (VBlank1)
|-
|-
| 0x2C
| 0x2C
| gsp, TwlBg
| gsp, TwlBg
| PPF?
| PPF
|-
|-
| 0x2D
| 0x2D
| gsp, TwlBg
| gsp, TwlBg
| ?
| P3D
|-
|-
| 0x30
| 0x30
| 0x54
| 0x54
| i2c, TwlBg
| i2c, TwlBg
| ?
| I2C Bus0 work done
|-
|-
| 0x55
| 0x55
| i2c, TwlBg
| i2c, TwlBg
| ?
| I2C Bus1 work done
|-
|-
| 0x56
| 0x56
| 0x5C
| 0x5C
| i2c, TwlBg
| i2c, TwlBg
| ?
| I2C Bus2 work done
|-
|-
| 0x60
| 0x60
| gpio, TwlBg
| gpio, TwlBg
| Asserted when shell is opened?
| Shell opened
|-
|-
| 0x62
| 0x62
| gpio, TwlBg
| gpio, TwlBg
| Asserted when shell is closed?
| Shell closed
|-
|-
| 0x63
| 0x63
| 0x64
| 0x64
| gpio, TwlBg
| gpio, TwlBg
| Headphone jack plugged in
| Headphone jack plugged in/out
|-
|-
| 0x66
| 0x66
| 0x68
| 0x68
| gpio, TwlBg
| gpio, TwlBg
| IR?
| IR
|-
|-
| 0x69
| 0x69
| 0x70
| 0x70
| gpio, TwlBg
| gpio, TwlBg
| Headphone jack plugged out
| ?
|-
|-
| 0x71
| 0x71
| gpio, TwlBg
| gpio, TwlBg
| MCU (HOME/POWER pressed)
| MCU (HOME/POWER pressed/released or WiFi switch pressed)
|-
|-
| 0x72
| 0x72
| ?
| ?
| Gamecard inserted
| Gamecard inserted
|-
| 0x78 to 0x7B
| Kernel
| Core 0-3 Performance monitor counter (any) overflow
|-
| 0x7A to 0x82 (PDN_MPCORE_CFG bit2 set) or
0x7C to 0x84 (bit2 clear)
| Kernel
| ?
|}
|}
(interrupts from 0x80 and up can't be mapped in available builds of the kernel)
|-
|-
| 0x0
| 0x0
| u32
| [[KBaseInterruptEvent]] *
| Pointer to interrupt data object for interrupt number
| Pointer to the KBaseInterruptEvent object for this interrupt
|-
|-
| 0x4
| 0x4
| u8
| u8
| Interrupt is pending
| Interrupt will be disabled by the IRQ handler as soon as it is acknowledged.
Ignored for FIQ: the FIQ handler always sets bit2 of [[PDN_Registers#PDN_FIQ_CNT|PDN_FIQ_CNT]]
|-
|-
| 0x5
| 0x5
| u8
| u8
| Interrupt is enabled, about to execute
| Interrupt is disabled
|-
|-
| 0x6
| 0x6
| Unused, alignment
| Unused, alignment
|}
|}
= Interrupt Table (New3DS) =
= Interrupt Table (New3DS) =
|-
|-
| 0x0
| 0x0
| InterruptEvent[224]
| InterruptData[224]
| Table of interrupt event objects for all hardware and software interrupts
| Data for all hardware and software interrupts
|-
|-
| 0x700
| 0x700
| KThread*
| [[KObjectMutex]]
| Thread currently acting on the interrupt table
| Mutex
|}
|}