Slightly less short:
The included powerpc.library is a driver for the Sonnet 7200 G3/G4 PCI card,
the Force PowerPCM-250 G4 PMC card and the PrPMC8xx range of cards.
What is needed:
- Amiga with Zorro III/PCI slots compatible with a Mediator.
- Elbox Mediator 3000Di/4000Di with 3.3V rail.
- 68040 or better.
- A Radeon 92xx or 3DFX Voodoo3/4/5 card.
- Mediator Warp3D 4.2 for 3D graphics in combination with a 3DFX Voodoo card.
- Sonnet 7200 PCI Card. Supported are MG3-400-512K; MG3-400-1M; MG3-500-1M;
- 5V 168 pins FPM DIMMs 2K Refresh (up to 256 MB in combination with the
Voodoo3; 128MB with other supported video cards) for the Sonnet.
- Force PowerPMC-250 Card boasting a 450MHz G4 CPU and on-board SDRAM. PMC
carrier card required.
- Motorola PrPMC8xx cards with Harrier chipset with either G3 or G4 processor
and 256MB of on-board SDRAM. PMC carrier card required.
- Bigfoot Killer NIC M1 PCI card with 400MHz MPC8343E and 64MB on-board RAM
- pci.library version 13.6 or higher.
- AHI for sound. AHI 4.18 recommended.
What does it do:
The library interfaces between the CPU and the memory on certain PCI cards
which contain PPC CPUs (e.g Sonnet Crescendo 7200 etc.) and the Amiga CPU and
memory. It also offers WarpOS compatible functions.
What does this mean:
It essentially adds a second CPU to your Amiga through the PCI slot.
This being any of 400MHz MPC838E up to 1GHz 7450 G4 CPUs. This CPU can be used
to run (certain) WarpOS software.
The PPC CPU on the PPC PCI card cannot DMA to Amiga memory. Any access to
non-PPC/PCI memory by the PPC is very slow. The library is trying to avoid
this by means of patching the AllocMem(), LoadSeg() and process creation
functions (the latter is optional). This way, PPC data and code is pushed
to the memory residing on the PPC card itself. This is not 100% watertight and
failure of these patches can lead to a DSI/ISI exception or very slow execution
of the PPC program.
Not all functions of the original WarpOS powerpc.library are yet implemented or
will be implemented (for example memory protection). 100% compatibility will
probably be never achieved, mostly due to hardware banging of certain WarpOS
software (e.g. PayBack).
Sound is restricted to AHI. Paula 8 bit DMA is the recommended setting. At this
moment, the SB128 and FM801 drivers sometimes produce a distortion in the sound
output with certain bridges. Paula 8 bit Fast modes have seen some success too.
Albeit that a the library supports AltiVec code, this has not been fully tested
as there exist to this moment no WarpOS programs with AltiVec code. That being
said, there is a test dnetc client with AltiVec enabled for WarpOS and the
latest SDL library contains AltiVec code.
The library supports options through ENVARC:sonnet. Currently supported are:
- EnEDOMem (0 or 1): Enable if you have EDO RAM installed. Default = 0.
- Debug (0-3): Set the level of debug messages. 0 = no messages (default).
- EnAlignExc (0 or 1): Enable the Alignment Exception (or in other words
disable the unaligned access emulation). Default = 0.
- DisL2Cache (0 or 1): Disable the L2 cache. Default = 0.
- DisL2Flush (0 or 1): Disables the full flush of the L2 cache.
Can speed up things if it doesn't crash. Default = 0.
- EnDAccessExc: See EnAlignExc, but now for the Data Access Exception (DSI).
- DisHunkPatch (0 or 1): Disable automatic pushing first code hunk to FAST RAM.
Default = 0.
- DisSigBounce (0 or 1): Disable signal bouncing between processors. Can gain
speed at the expense of compatibility. Default = 0.
- EnStackPatch (0 or 1): Enable if you want the library to push more 68K data
to 68K memory like stack and task structures. **EXPERIMENTAL**
- SetCPUComm (0 or 1): If set will move all requests to MasterControl process
and are no longer directly handled by the 68K interrupt. Intended for A1200.
Default = 0. **EXPERIMENTAL**
- SetCMemDiv (0-5): Sets the speed divider of the L2 Cache memory.
5 = 3, 4 = 2.5, 3 = 2, 2 = 1.5, 1 = 1, 0 = Handled by library. Default = 0.
For example: A Sonnet with speed 500 MHz and setting 5 will run the L2 cache
at 166 MHz (500/3). **USE AT OWN RISK!!!**
The included powerpc.library is for PCI PPC cards only and not compatible with
CPU/expansion slot PPC solutions (BPPC, CSPPC etc.).
The driver/library is still being actively developed and is in a beta stage.
Refer to https://github.com/Sakura-IT/SonnetAmiga for the latest build and the
latest documentation regarding compatibility, FAQs and issues.
See http://amigafun.blogspot.com/search/label/Sonnet for some demonstrations of
the Sonnet card in action.
In the archive:
powerpc.library: Library that initializes the PPC and handles the
communication between the system and the PPC card.
InitPPC: Initializes the PPC card using the powerpc.library
GetInfo: Simple program to show the state of the PPC CPU on the
PPC card after initialization.
StartPPC: Simple script if don't want to put the library in the
The Sonnet or PowerPMC card can only be initialized after the graphics card has
been initialized. This means after C:LoadMonDrvs in the Startup-Sequemce. To
use it with WarpDT, it needs to be initialized before AddDataTypes in the
Startup-Sequence. It is however recommended to start the driver from the
workbench using the provided icon or using the provided script. The Harrier
bridge based and Killer NIC cards can initialize their CPUs without the aid of
What has changed since 17.9:
- GetCPU() now correctly recognizes a Nitro CPU as a G4.
- Added basic MPC7450 support (Gyrus X2 PMC card).
- Added MPC7441, PPC603E to GetInfo tool.
- Fixed an error in RunPPC that caused screen corruption (e.g. in Earth2140).
- Fixed tearing of screens in some games (e.g. FreeSpace).
- Added support for Bigfoot Killer NIC M1 PCI cards.
What has changed since 17.8:
- Added ENV DisSigBounce. If set signals are less likely to continuously bounce
between processors. This lessens the load on the PCI bus and can speed up
certain programs/games. Programs that use a lot of DSI emulations (like
scummvmwos 0.7) will hang. Turn this setting off when that happens.
- Added Harrier chipset support. This will open up a range of support for PMC
cards based on this chipset. For now PrPMC800 has been tested and is
officially supported. Others have had success with the PrPMC8150 card.
- Added more MHz options to the settings table. Up to 1GHz now supported.
What has changed since 17.7:
- Fixed a memory leak. Stack of a PPC task was not freed.
- LoadSeg() patch crashed on overlaid files. They are now ignored.
- Added more error handling/messages.
- SnoopTask() on exit was not implemented correctly. Fixed.
- SnoopTask() should now work with SNOOP_START.
- Implemented task exceptions from SetExceptPPC().
- Small compatibility update regarding PPCBase (extended libbase).
- Aligned data handling within the library to 16 byte boundaries (for Altivec).
- Fixed a trashing of a segment pointer inside the LoadSeg() patch.
- Extended LargeContext to hold Altivec registers.
- Modules of WarpRace are now loaded correctly.
- Added support for the Force Computers PowerPMC-250 450MHz G4 card,
- Added CPUF_7410 for MPC7410 CPUs.
- Added size detection code for SDRAM to the library.
- Added option sonnet/EnStackPatch.
What has changed since 17.6:
- CauseInterrupt() and CausePPCInterrupt() now work as intended.
- The option to enable a DSI exception handler now works as intended.
- Removed a lot of special purpose register (SPRGx) usage.
- Made several fixes to the init code when a Radeon is present.
- Loading DefIcons no longers goes into a infinite loop due to LoadSeg() patch.
- Added the ENV variable SetCMemDiv. Now you can set the speed of the L2 cache.
- First hunk of WarpOS programs should now correctly be loaded to FAST RAM.
- Made some tweaks to the AllocMem() patch.
- Cybermand and Cyberpi now work correctly with hunk patch.
- Fixed a memory leak. Stack of deleted PPC tasks was not freed.
- LoadSeg() patch crashed on overlaid files. These are now ignored.
What has changed since 17.5:
- Fully working PP_STACKPTR and PP_STACKSIZE for Run68K().
- Fixed typo in GetPPCState().
- Added more error messages.
- Fixed a bug in the scheduler. Removed tasks were not handled properly.
- Added a memory clean-up task. Memory of removed tasks is now freed properly.
- Added options through ENVARC:sonnet
- Kernel now removes crashed tasks and continues instead of halting.
- Length of context-switch structure was incorrect.
- Completely rewrote all the exception handlers.
- Added DSI, Decrementer and External Interrupt exception hooks.
- Fixed an error in the custom handler code in case of small context used.
- Register r3 was trashed when more than 1 custom handler present. Fixed.
- Added option to force first hunk of WarpOS program to FAST memory by default.
- LoadSeg patch now correctly handles bit 30 of HUNK_SIZE (move to CHIP).
- Sometimes PPC code was loaded into FAST RAM through the LoadSeg patch. Fixed.
- Mediator config jumper can now be in ANY position for the sonnet to work.
- AllocMem() patch now correctly handles CLI names.
- FreeSpace movies now play at full speed.
What has changed since 17.4:
- Fixed a bug in the FPU opcode detection in the Alignment handler.
- Fixed various Enforcer hits on the 68K side.
- Stack transfer limit 68K->PPC of 164 bytes removed (RunPPC).
- Basic stack transfer support added to Run68K().
- Added support for Radeon with VendorID $5964.
- Added a PPC memory test. This is run during memory initialization.
- Added a timeout for the PPC to report back during initialization.
- Added checks on the SwapConfig and WindowSize jumpers of the mediator.
- Added experimental AltiVec support.
- Added powerpc.library to distribution. See notes above.
What has changed since 17.3:
- Fixed a few more potential hangs with well placed syncs.
- GetInfo() now recognizes modded 433/466/533 MHz Cards.
- Z flag of 68K interrupt now handled correctly upon exit interrupt.
- User code no longer addresses the zero page. That is now Supervisor only.
- Kernel and graphics memory are now handled by BATs by default.
- L2 cache can now cache instructions, not only data.
- L2 cache now set to 200MHz for 400/1MB version instead of 133MHz.
- Fixed a bug in GetHALInfo().
- Fixed a bug where inter-CPU messages were duplicated.
- Inter-CPU messages can now be up to ~64K in size instead of 150 bytes.
- Other miscelaneous fixes to increase stabilty and speed.
What has changed since 17.0:
- Moved all patches inside the library, no more different start-up programs.
- Implemented PPF_ASYNC/PP_STACKPTR/PP_STACKSIZE for RunPPC().
- Fixed a bug in CreatePPCTask(). Now APDF works.
- Added better error handling through pop-up windows/requesters.
- Added a ramlib patch to increase stack when needed.
- Fixed the TagItem functions. Now more demos from Mad Wizards started working.
- Fixed a bug in GetInfo that was masked by the bug in the TagItem functions.
- Added shared signal system. Now the signals are shared by the 2 processors.
- Fixed LockTaskList function. Wrong result was returned.
- Added CPUUSage, Busy, Activity, CPU Load and System load code (for WarpStat).
- Fixed a bug in DeleteTaskPPC() as the Snoop list was not correctly freed.
- Fixed a bug in PutXMsg(). WES should work now (albeit slow).
- Added alignment support to AllocVecPPC(); For iFusion..No that does not work.
- Fixed a missing opcode in the FPU alignment emulation code. Now Q1A works.
- Other miscelaneous fixes and optimizations.
Improving the compatibility with WarpOS regarding the PPC MMU.
Maybe a version for a towerized A1200. Albeit that several attempts have
utterly failed. Add more PPC cards (824x/745x?) to the supported list.
Now go play Quake III !