Changes

| 30 || syscall_ahbMemFlush_wrapper

| 30 || syscall_ahbMemFlush_wrapper

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| 31 || int software_IRQ_31() || Enables [[Hardware/Hollywood IRQs|hardware interrupts]] for device 31 ([[Hardware/IPC|IPC (Starlet)]]) (can only be used from the kernel or ES) || 0 on success, -4 for no permission.

| 31 || int enable_irq_iop() || Enables [[Hardware/Hollywood IRQs|hardware interrupts]] for device 31 ([[Hardware/IPC|IPC (Starlet)]]) (can only be used from the kernel or ES) || 0 on success, -4 for no permission.

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| 32 || int software_IRQ_18() || Enables [[Hardware/Hollywood IRQs|hardware interrupts]] for device 18 ([[Hardware/Drive Interface|DI]]) (can only be used from DI) || 0 on success, -4 for no permission

| 32 || int enable_irq_di() || Enables [[Hardware/Hollywood IRQs|hardware interrupts]] for device 18 ([[Hardware/Drive Interface|DI]]) (can only be used from DI) || 0 on success, -4 for no permission

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| 33 || int software_IRQ_7_or_8(int id) || Enables [[Hardware/Hollywood IRQs|hardware interrupts]] for device 7 ([[Hardware/SD Host Controller|SDHC]] - must be SDI) if id==0, else device 8 ([[Hardware/802.11 Wireless|802.11 Wireless]] - must be WL) || 0 on success, -4 for no permission

| 33 || int enable_irq_sdhc(int id) || Enables [[Hardware/Hollywood IRQs|hardware interrupts]] for device 7 ([[Hardware/SD Host Controller|SDHC]] - must be SDI) if id==0, else device 8 ([[Hardware/802.11 Wireless|802.11 Wireless]] - must be WL) || 0 on success, -4 for no permission

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| 34 || int software_IRQ(int id) || Enables [[Hardware/Hollywood IRQs|hardware interrupts]] for the given device, with PID requirements (this is also used to syscalls 31 through 33):

| 34 || int enable_irq(int id) || Enables [[Hardware/Hollywood IRQs|hardware interrupts]] for the given device, with PID requirements (this is also used to syscalls 31 through 33):

  {| class="wikitable"

  {| class="wikitable"

   ! id !! PID

   ! id !! PID

| 3d || int verify_iobuf([[IOS/IoBuffer|struct iobuf]] *iob) || verify if the argument points to an io buffer

| 3d || int verify_iobuf([[IOS/IoBuffer|struct iobuf]] *iob) || verify if the argument points to an io buffer

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| 3e || syscall_3e

| 3e || syscall_3e || Unknown; related to IO buffer functionality

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| 3f || void IOS_InvalidateDCache(void *address, u32 size) || "sync_before_read" - Invalidates dcache, and something (probably related to flushing memory)

| 3f || void IOS_InvalidateDCache(void *address, u32 size) || "sync_before_read" - Invalidates dcache, and something (probably related to flushing memory)

| 43 || <nowiki>[[noreturn]]</nowiki> void boot_new_ios_kernel(void* ios_binary_address, u32 new_version) || Sets the version at 0x3140 to <code>new_version</code> and the IPC buffer range ("DDR settings") to the legacy range ("12M"), before branching to the new kernel. This can only be called from UID 0. || -

| 43 || <nowiki>[[noreturn]]</nowiki> void boot_new_ios_kernel(void* ios_binary_address, u32 new_version) || Sets the version at 0x3140 to <code>new_version</code> and the IPC buffer range ("DDR settings") to the legacy range ("12M"), before branching to the new kernel. This can only be called from UID 0. || -

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| 44 || int syscall_assert_di_reset() || Clears bit 10 (DI) of [[Hardware/Hollywood_Registers#HW_RESETS|HW_RESETS]] (can only be called from DI) || Returns 0 on success, -1 on error

| 44 || int assert_di_reset() || Clears bit 10 (DI) of [[Hardware/Hollywood_Registers#HW_RESETS|HW_RESETS]] (can only be called from DI) || Returns 0 on success, -1 on error

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| 45 || int syscall_deassert_di_reset() || Enables bit 10 (DI) of [[Hardware/Hollywood_Registers#HW_RESETS|HW_RESETS]] (can only be called from DI) || Returns 0 on success, -1 on error

| 45 || int deassert_di_reset() || Enables bit 10 (DI) of [[Hardware/Hollywood_Registers#HW_RESETS|HW_RESETS]] (can only be called from DI) || Returns 0 on success, -1 on error

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| 46 || bool syscall_check_di_reset() || Checks bit 10 (DI) of [[Hardware/Hollywood_Registers#HW_RESETS|HW_RESETS]] (can only be called from DI) || Returns 1 on reset asserted, 0 on deasserted or error

| 46 || bool check_di_reset() || Checks bit 10 (DI) of [[Hardware/Hollywood_Registers#HW_RESETS|HW_RESETS]] (can only be called from DI) || Returns 1 on reset asserted, 0 on deasserted or error

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| 47 || GetSomeFlags || Depending on what is currently running (boot2/IOS) it returns different values || IOS: *(u32*)r0=0 *(u16*)r1=0

| 47 || void get_kernel_flavor(u32 *type, u16 *unk) || The implementation of this syscall differs between "flavors" of kernel and returns some identifiers. ||  

Boot2: *(u32*)r0=3 *(u16*)r1=0

The IOSv58 system menu kernel writes (*type=3, *unk=0).

The boot2v04 kernel writes (*type=0, *unk_0).

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| 48 || set_r0_1_r1_0

| 48 || void get_unk_flavor(u32 *type, u16 *unk) || Potentially vestigial. Probably related to syscall 0x47 above. || Always returns (*type=1, *unk=0).

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| 49 || get_boot_vector

| 49 || u32 get_boot_vector() || Returns a pointer (?) depending on the SRAM mirror bit in [[Hardware/Hollywood_Registers#HW_MEMIRR|HW_MEMIRR]].||

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| 4a || GetHollywoodRevision

| 4a || GetHollywoodRevision

| 56 || int poke_gpios(u32 reg, u32 value) || Set gpio reg to value (can only be called from STM) || 0 on success, -1 on error

| 56 || int poke_gpios(u32 reg, u32 value) || Set gpio reg to value (can only be called from STM) || 0 on success, -1 on error

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| 57 || syscall_57 || can only be called from STM || 0 on success, -1 on error

| 57 || int write_ddr_reg(u32 reg_idx, u16 val) || Writes a 16-bit value to the specified Memory Controller register. Can only be called from the STM module. || Returns 0 on success, -1 on error.

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| 58 || void call_poke_debug_port(u8 value) || Set [[Hardware/Hollywood GPIOs|GPIO]] lines 16-23 (DEBUG0-7, the [[debug port]]) to value

| 58 || void poke_debug_port(u8 value) || Set [[Hardware/Hollywood GPIOs|GPIO]] lines 16-23 (DEBUG0-7, the [[debug port]]) to the provided value.

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| 59 || load_PPC || can only be called from ES || 0 on success, negative for error

| 59 || set_ipc_access_rights || Related to PPC IPC. Can only be called from the ES module. Called when bootstrapping PPC. || 0 on success, negative for error.

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| 5a || u32 load_module(const char* path) || Load the specified IOS module and run it (can only be called from UID 0, which is kernel or ES) || 0 on success, negative for error

| 5a || u32 load_module(const char* path) || Load an ARM ELF [IOS module] and start a new thread. || 0 on success, negative for error

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| 5b || IOSCError IOSC_CreateObject(u32* key_handle, IOSCObjectType type, IOSCObjectSubType subtype); || Create a new keyring entry. <code>key_handle</code> is updated with a key handle to use with other IOSC calls. || 0 on success, negative for error

| 5b || IOSCError IOSC_CreateObject(u32* key_handle, IOSCObjectType type, IOSCObjectSubType subtype); || Create a new keyring entry. <code>key_handle</code> is updated with a key handle to use with other IOSC calls. || 0 on success, negative for error

| 77 || IOSCError IOSC_CheckDiHashes(u8 * destAddr, u8 * diskRdBuf, u32 h1Index, u32 h2Index, u8 * h3Ptr); || can only be called from DI || 0 on success, negative on error

| 77 || IOSCError IOSC_CheckDiHashes(u8 * destAddr, u8 * diskRdBuf, u32 h1Index, u32 h2Index, u8 * h3Ptr); || can only be called from DI || 0 on success, negative on error

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| 78 || syscall_78 || can only be called from ES || 0 on success, negative on error

| 78 || syscall_78_set(void *buf, u32 len) || Related to thread priorities? Can only be called from ES. || Returns 0 on success, negative on error

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| 79 || syscall_79 || can only be called from ES || negative on error

| 79 || syscall_79_get(void *buf, u32 len) || Related to thread priorities? Can only be called from ES. || Returns negative on error.

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| 7a || syscall_7a

| 7a || syscall_7a