In memory of Ben “bushing” Byer, who passed away on Monday, February 8th, 2016.

Difference between revisions of "Cafe OS syscalls"

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(TODO: Not actually sure which RAMPID system it uses, I assume Browser is always 4? Also, "OS" prefix is only for userspace symbols eg coreinit to mark what is a syscall)
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Cafe OS syscalls are issued by doing the following:
+
#REDIRECT [[Cafe OS]]
li r0, 0x0100 # load syscall value->r0
 
sc            # syscall instruction
 
blr          # return control to program
 
 
 
When you send a call to the kernel, it goes to FFF00C00, which then jumps to FFF021A0 + (fastcall << 5).
 
 
 
Normal syscalls are divisible by 0x100, so all of them will jump to FFF0021A0 itself, which is a jump to the table dispatcher.
 
 
 
The dispatcher uses a RAMPID and the syscall table at FFEAAA40 (5.5.0) to get the secondary table each RAMPID is able to access.
 
 
 
0 (Kernel), 2, and 3 all use the empty table, root.rpx has its own table with a few unique calls, RAMPID 4, 5, and 6 share "syscall_system", and apps/games (RAMPID 7) have their own. See [[Cafe OS#Processes|Cafe OS]] wiki page for more info.
 
 
 
Below is a list of what all of them, as well as the loader which has its own barebones table, have access to call.
 
 
 
{| class="wikitable sortable"
 
|-
 
! scope="col" | #
 
! scope="col" | Name
 
! scope="col" style="width: 24px;" | root
 
! scope="col" style="width: 24px;" | Sys
 
! scope="col" style="width: 24px;" | App
 
! scope="col" style="width: 24px;" | Ldr
 
|-
 
| 0x0000 || ConsoleWrite || Y || Y || Y || Y (sp)
 
|-
 
| 0x0006 || LoadContext || ? || ? || ? || ?
 
|-
 
| 0x0008 || SetContext || ? || ? || ? || ?
 
|-
 
| 0x0009 || GetCurrentFPUContext || ? || ? || ? || ?
 
|-
 
| 0x000A || SetCurrentFPUContext || ? || ? || ? || ?
 
|-
 
| 0x000C || WriteGatherInit || ? || ? || ? || ?
 
|-
 
| 0x000D || SetPerformanceMonitor || ? || ? || ? || ?
 
|-
 
| 0x0011 || ReadRegister32Ex || ? || ? || ? || ?
 
|-
 
| 0x0012 || WriteRegister32Ex || ? || ? || ? || ?
 
|-
 
| 0x0017 || WriteGatherGetPtr || ? || ? || ? || ?
 
|-
 
| 0x0019 || GetSecurityLevel (always zero) || ? || ? || ? || ?
 
|-
 
| 0x0100 || AppPanic || Y || Y || Y || Y
 
|-
 
| 0x0200 || EffectiveToPhysical || Y || Y || Y || N
 
|-
 
| 0x0300 || PhysicalToEffectiveCached || Y || Y || Y || N
 
|-
 
| 0x0400 || PhysicalToEffectiveUncached || Y || Y || Y || N
 
|-
 
| 0x0500 || ValidateAddrRange || Y || Y || Y || Y
 
|-
 
| 0x0600 || UpdateCoreTime || Y || Y || Y || N
 
|-
 
| 0x0800 || SetUserModeExHandler || Y || Y || Y || N
 
|-
 
| 0x0B00 || AllocateTimer || Y || Y || Y || N
 
|-
 
| 0x0C00 || FreeTimer || Y || Y || Y || N
 
|-
 
| 0x0D00 || PrimeTimer || Y || Y || Y || N
 
|-
 
| 0x0E00 || StopTimer || Y || Y || Y || N
 
|-
 
| 0x0F00 || LogLoadedRPLs || Y || Y || Y || N
 
|-
 
| 0x1000 || SetInterruptHandler || Y || Y || Y || N
 
|-
 
| 0x1100 || GetInterruptHandler || Y || Y || Y || N
 
|-
 
| 0x1200 || DisableInterrupt || Y || Y || Y || N
 
|-
 
| 0x1300 || EnableInterrupt || Y || Y || Y || N
 
|-
 
| 0x1400 || ClearAndEnableInterrupt || Y || Y || Y || N
 
|-
 
| 0x1500 || GetInterruptStatus || Y || Y || Y || N
 
|-
 
| 0x1600 || ClearInterruptStatus || Y || Y || Y || N
 
|-
 
| 0x1700 || FindClosestSymbol || Y || Y || Y || Y (sp)
 
|-
 
| 0x1900 || Exit/Halt || Y || Y || Y || N
 
|-
 
| 0x1A00 || GetInfo || Y || Y || Y || N
 
|-
 
| 0x1B00 || SetInfo || Y || Y || Y || N
 
|-
 
| 0x1C00 || ThreadInit || Y || Y || Y || N
 
|-
 
| 0x1D00 || SendICI || Y || Y || Y || N
 
|-
 
| 0x1E00 || IPCKDriver_<nowiki>{Loader|User}</nowiki>Open || Y || Y || Y || Y (sp)
 
|-
 
| 0x1F00 || IPCKDriver_<nowiki>{Loader|User}</nowiki>Close || Y || Y || Y || Y (sp)
 
|-
 
| 0x2000 || IPCKDriver_SubmitRequest || Y || Y || Y || Y (sp)
 
|-
 
| 0x2200 || GetEnvironmentVariable || Y || Y || Y || N
 
|-
 
| 0x2700 || GetNotifyTarget || Y || Y || Y || N
 
|-
 
| 0x2800 || ProcCtrl || Y || Y || Y || N
 
|-
 
| 0x2900 || GetForegroundBucket || Y || Y || Y || N
 
|-
 
| 0x2A00 || RequestSwitch || Y || Y || Y || N
 
|-
 
| 0x2B00 || PrepareTitle || Y || Y || Y || N
 
|-
 
| 0x2C00 || ProcYield || Y || Y || Y || N
 
|-
 
| 0x2E00 || GetSystemMessage || Y || Y || Y || N
 
|-
 
| 0x2F00 || GetCallArgs || Y || Y || Y || N
 
|-
 
| 0x3000 || GetAbsoluteSystemTimeInternal || Y || Y || Y || N
 
|-
 
| 0x3100 || SetAbsoluteSystemTimeInternal || Y || Y || Y || N
 
|-
 
| 0x3200 || Driver_Register || Y || Y || Y || N
 
|-
 
| 0x3300 || Driver_Deregister || Y || Y || Y || N
 
|-
 
| 0x3800 || AllocVirtAddr || Y || Y || Y || N
 
|-
 
| 0x3900 || FreeVirtAddr || Y || Y || Y || N
 
|-
 
| 0x3A00 || GetMapVirtAddrRange || Y || Y || Y || N
 
|-
 
| 0x3B00 || GetDataPhysAddrRange || Y || Y || Y || N
 
|-
 
| 0x3C00 || GetAvailPhysAddrRange || Y || Y || Y || N
 
|-
 
| 0x3D00 || MapMemory || Y || Y || Y || N
 
|-
 
| 0x3E00 || UnmapMemory || Y || Y || Y || N
 
|-
 
| 0x3F00 || LogBuffer || Y || Y || Y || Y
 
|-
 
| 0x4000 || LogArgs || Y || Y || Y || Y
 
|-
 
| 0x4100 || LogFunc || Y || Y || Y || Y
 
|-
 
| 0x4200 || LogReportKernel || Y || Y || Y || Y
 
|-
 
| 0x4300 || LogRetrieve || Y || Y || Y || Y
 
|-
 
| 0x4400 || ??? || Y || Y || Y || N
 
|-
 
| 0x4500 || ??? || Y || Y || Y || N
 
|-
 
| 0x4600 || ??? || Y || Y || Y || N
 
|-
 
| 0x4700 || Driver_CopyFromSaveArea || Y || Y || Y || N
 
|-
 
| 0x4800 || Driver_CopyToSaveArea || Y || Y || Y || N
 
|-
 
| 0x4900 || SavesDone_ReadyToRelease || Y || Y || Y || N
 
|-
 
| 0x4A00 || SetAlarm || Y || Y || Y || N
 
|-
 
| 0x4B00 || SetDABR || Y || Y || Y || N
 
|-
 
| 0x4C00 || SetIABR || Y || Y || Y || N
 
|-
 
| 0x4D00 || GetProcessInfo || Y || Y || Y || N
 
|-
 
| 0x4E00 || GetCodegenVirtAddrRange || Y || Y || Y || N
 
|-
 
| 0x4F00 || LoaderCall || Y || Y || Y || N
 
|-
 
| 0x5000 || RPLLoaderResumeContext || N || N || N || Y
 
|-
 
| 0x5200 || WaitIopComplete || N || N || N || Y
 
|-
 
| 0x5300 || FlushCode || N || N || N || Y
 
|-
 
| 0x5400 || FlushData || N || N || N || Y
 
|-
 
| 0x5500 || UpdateHeartbeat || N || N || N || Y
 
|-
 
| 0x5600 || LogEntry || N || N || N || Y
 
|-
 
| 0x5700 || FastClearMemory || N || N || N || Y
 
|-
 
| 0x5800 || GetBusClockSpeed || N || N || N || Y
 
|-
 
| 0x5900 || GetSharedArea || Y || Y || Y || N
 
|-
 
| 0x5A00 || SendPolicy || Y || Y || Y || N
 
|-
 
| 0x5B00 || GetProcessIndex || N || N || N || Y
 
|-
 
| 0x5C00 || IPCKDriver_PollLoaderCompletion || N || N || N || Y
 
|-
 
| 0x5D00 || BlockLogSave || Y || Y || Y || N
 
|-
 
| 0x5E00 || FinishInitandPreload || N || N || N || Y
 
|-
 
| 0x5F00 || ContinueStartProcess || N || N || N || Y
 
|-
 
| 0x6000 || OpenMCP || N || N || N || Y
 
|-
 
| 0x6100 || QuerySwitchReady || Y || Y || Y || N
 
|-
 
| 0x6200 || ??? || Y || Y || Y || N
 
|-
 
| 0x6300 || ??? || Y || Y || Y || N
 
|-
 
| 0x6400 || SetTimeInternal || N || Y || N || N
 
|-
 
| 0x6500 || (blr) || Y || Y || Y || N
 
|-
 
| 0x6600 || ProfileEntry (blr) || N || N || N || Y
 
|-
 
| 0x6700 || RequestFastExit || Y || Y || Y || N
 
|-
 
| 0x6800 || CoreInitDone || Y || Y || Y || N
 
|-
 
| 0x6900 || GetSwitchTarget || Y || Y || Y || N
 
|-
 
| 0x6A00 || AcquireDone || Y || Y || Y || N
 
|-
 
| 0x6B00 || GetBuiltSDKVersion || Y || Y || Y || N
 
|-
 
| 0x6C00 || SystemFatal || Y || Y || Y || N
 
|-
 
| 0x6E00 || SwitchSecCodeGenMode || Y || Y || Y || N
 
|-
 
| 0x6F00 || IopShell_RegisterCallback || Y || Y || Y || N
 
|-
 
| 0x7000 || GetTitleVersion || Y || Y || Y || N
 
|-
 
| 0x7100 || IsTestKernel || Y || Y || Y || N
 
|-
 
| 0x7200 || ForceFullRelaunch || Y || Y || Y || N
 
|-
 
| 0x7300 || Recycle || Y || N || N || N
 
|-
 
| 0x7400 || get_mode_flags(?) || Y || Y || Y || Y
 
|-
 
| 0x7500 || QueryVirtAddr || Y || Y || Y || N
 
|-
 
| 0x7600 || GetCodegenCore || Y || Y || Y || N
 
|-
 
| 0x7700 || GetSecCodeGenMode || Y || Y || Y || N
 
|-
 
| 0x7800 || CodegenCopy || Y || Y || Y || N
 
|-
 
| 0x7900 || LoadShared || Y || N || N || N
 
|-
 
| 0x7A00 || SetExceptionCallback || Y || Y || Y || N
 
|-
 
| 0x7B00 || IopShell_InjectCommand || Y || Y || Y || N
 
|-
 
| 0x7C00 || Kill || Y || Y || Y || N
 
|-
 
| 0x7D00 || EnableOverlayArena || Y || Y || Y || N
 
|-
 
| 0x7E00 || DisableOverlayArena || Y || Y || Y || N
 
|-
 
| 0x7F00 || GetSystemMode || Y || Y || Y || N
 
|-
 
| 0x8000 || SystemMode_RegisterCallback || Y || Y || Y || N
 
|-
 
| 0x8100 || ZeroProcessMemory || Y || N || N || N
 
|-
 
| 0x8200 || HandleIopPowerEvents || Y || Y || Y || N
 
|-
 
| 0x8300 || ??? || Y || Y || Y || Y
 
|-
 
| 0x8400 || ??? || N || N || N || Y
 
|}
 

Latest revision as of 02:47, 11 February 2024

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