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Wrap
Text File
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2001-03-22
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50KB
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937 lines
*******************************************************************************
*
* Welcome to warp speed!
*
* powerpc.library/WarpOS history
*
* milestones:
* V8.0 - first internal release of WarpOS. powerpc.library is
* running under WarpOS from now on.
* V9.0 - PPC native memory management / exception handler
* support
* V10.0 - MMU + BAT support implemented / PPC-Enforcer
* Reincarnation of voxelspace demo
* V11.0 - Virtual signal system / native msg handling
* V12.0 - first official release
* Memory protection support / InterCPU msg handling
* CyberStormPPC support
* V13.0 - Debugger support / Demos equipped with window support
* V14.0 - Dynamic scheduler / Hardware driver concept
* BlizzardPPC support
* V15.0 - Pooled memory API (new MM) / Shared semaphores /
* Blackbox 68K emulation support
* V16.0 - Maintenance release / bugfixes / small features
*
*******************************************************************************
4. 6.97 - first internal release
- V8.0
5. 6.97 - new memory management, based on mempools, inserted
(old implementation linked to exec/AllocVec disabled)
Thanks a lot to Michael Rock for the implementation of
this memory management!
- V8.1
7. 6.97 - New memory management routines locked by semaphores
- OpenLibrary patch implemented to prevent WarpOS from
being killed by ELF applications.
- New mirror tasks now get the priority of its partner
task instead of 0.
- New library functions 'Super' and 'User' to switch
between supervisor and user mode.
- New library function 'SetHardware' to affect some
CPU related resources (i.e. trace mode)
- V8.2
8. 6.97 - If no tasks are running/ready, the PPC enters a
power saving mode (nap mode)
- New library function 'ModifyFPExc' allows to set/clear
the exception enable bits in the FPSCR to enable/disable
particular FP exceptions
- New flag for CreateTaskPPC: TASKATTR_MOTHERPRI. Allows
child tasks to inherit the priority of the mother task
- New tools to set/clear global breakpoints: ibreak and
dbreak (dbreak only for 604[e])
9. 6.97 - Priority of WarpOS system task 'Enterprise' changed to 1
- New library functions 'SetExcHandler' and 'RemExcHandler'
allow to insert/remove custom exception handler (comparable
to exec/AddIntServer)
- New memory management system temporarly disabled because of
linker problems.
- V9.0
11. 6.97 - New memory management system re-enabled.
12. 6.97 - Signal numbers changed from BYTE to LONG (AllocSignalPPC,
FreeSignalPPC)
- Emulation of misaligned FP accesses done (implemented in
warp.library). Author of the emulation: M.Rock.
13. 6.97 - Heavy bug fixed: Sleep routine (executed if no tasks
are running/ready) trashed the stack of a waiting task.
- New library function 'WaitTime' allows to wait for a
given time or for given signals.
- Emulation of DCBZ to noncachable/writethrough locations
implemented (warp.library)
- V9.1
14. 6.97 - New WarpOS support task 'Voyager' implemented which frees
all memory allocated at 'CreateTaskPPC' if the task is
removed.
- New *private* library function 'ChangeStack' to change the
PPC stack.
- New tool 'stackppc' which works the same as the 'stack'
command (using 'ChangeTask').
- Bug fixed: mirror tasks didn't get double the stack size
of the calling 68K process (as intended) because the
field 'pr_Stacksize' isn't updated by the Shell when
launching programs. The difference of TC_SPUPPER and
TC_SPLOWER multiplied by 2 is taken now.
- New library functions 'LockTaskList' and 'UnLockTaskList'
allow to gain access to a list of all tasks.
- New tool 'showtasks' prints out informations about all PPC
tasks.
- V9.2
15. 6.97 - signal bit definition for SIGF_TIME changed from 2 to 9
to avoid collisions with exec signals.
- paged MMU setup implemented and activated
- exception handlers are now called with MMU switched off.
-> no critical locations like custom chip area (which must
be accessed in noncachable mode) must be accessed anymore
- new library functions 'SetExcMMU' and 'ClearExcMMU' allow
to setup a temporary BAT based MMU setup in exception
handling code to access critical locations as described
above.
16. 6.97 - BAT support done. The BAT registers are now a local resource
of each task (like the normal registers) and they are
switched by the scheduler.
- New library function 'ChangeMMU' allows to change the MMU
setup of the current task to standard or to BAT setup.
- New tool 'changeMMU' performs the same action as the
library function, but it can be controlled from the shell.
17. 6.97 - bug fixed: mempools were not freed by mistake
- MMU support for AllocVecPPC/FreeVecPPC implemented
18. 6.97 - ****** Reincarnation of VOXELSPACE !! *******
the executable 'voxelspace' is now located in the demos
drawer. To run the demo a separate archive is required.
(voxel.lha). Welcome to warp speed! :)
- PPC-Enforcer activated. First page is protected and all
accesses to $400-$1000 are emulated. Load accesses to $4
are emulated, too.
- New library function 'GetInfo' allows to get many PPC
related information
- New tool 'showinfo' displays all information currently
available by 'GetInfo'
- V10.0
22. 6.97 - bug fixed: if someone tried to open powerpc.library with
too high version number, the powerpc.library was shut down.
23. 6.97 - SIGF_TIME changed again (Bit 10)
25. 6.97 - bug fixed which could cause deadlock at 68K-Calls
- bug fixed: internal instruction cache flush was broken
- signals are now completely transparent to the CPU's. All
signals are transferred at Cross-Calls -> A PPC task can
now be signaled by signaling its 68K mirror task and vice
versa. All signal bits are mirrored.
26. 6.97 - LN_TYPE field of a ppc task changed from NT_TASK to
NT_PPCTASK (-> tasksppc.i)
- The whole signal handling is now based on the 'virtual
signal-pool'. Both CPU's share the signals and they can
signal tasks on both CPU's directly (i.e. a PPC-Task can
be signaled from 68K using exec/Signal with the PPCTask
structure as first argument).
- Now it's safe not to restore the nonvolatile registers if
a PPC task exits by a single 'blr'. The smalldata base is
now automatically transferred to an alternative exit
routine, if one was specified at 'CreateTaskPPC'.
- V10.1
27. 6.97 - New library functions implemented for Message-Handling:
CreateMsgPortPPC, DeleteMsgPortPPC, AddPortPPC, RemPortPPC,
FindPortPPC, WaitPortPPC, PutMsgPPC, GetMsgPPC, ReplyMsgPPC
28. 6.97 - A new PPC task now creates immediately a mirror 68K process
if none exists.
29. 6.97 - PutMsgPPC/ReplyMsgPPC can now be called from exception
handlers.
- V10.2
13. 7.97 - New library function 'FreeAllMem' allows to free all
allocations made by the calling task.
15. 7.97 - If WarpOS is launched before ENV: is ready, then the
env variables are read a second time, when the first
RunPPC is performed (except for powerpc/debug)
16. 7.97 - WarpOS-Documentation in AMIGAGuide-Format done (D)
18. 7.97 - Dokumentation for Game-Development 'GameDev.guide'
included in archive (D)
- V11.0
19. 7.97 - There was a tiny chance of problems with messages
sent from exception handling code -> fixed
20. 7.97 - Memory protection support implemented. Two new memory
attributes for 'AllocVecPPC' allow to allocate memory,
which is protected against other tasks (either full
protected or write protected).
- The tool 'showtasks' now displays the pagetable of each
task.
- The PPC-Code of the powerpc.library is now write-protected.
- V11.1
21. 7.97 - New library function 'CopyMemPPC' to copy memory areas.
- New environment variable 'powerpc/memprot' allows to
disable/enable the memory protection feature.
- New 68K library functions 'AllocVec32' and 'FreeVec32'
allow to allocate memory which can be shared with PPC tasks
- New 68K library function 'SPrintF68K' allows to print
debug information to the serial port/sushi.
22. 7.97 - cache flush optimization for 68040/68060 didn't work at all
-> fixed -> calling overhead decreased by 20 percent
- InterCPU message handling implemented. New library functions
'AllocXMsg', 'FreeXMsg' and 'PutXMsg' for 68K to alloc
special InterCPU-Messages and to send them. New library
functions 'AllocXMsgPPC', 'FreeXMsgPPC' and 'PutXMsgPPC' do
the same for PPC.
23. 7.97 - Various bugs related to MMU features fixed
- C-Includes added to the WarpOS-Archive.
- V11.2
1. 8.97 - Changed the assembler macros RUNPOWERPC and RUNPOWERPC_XL
(powerpc.i) to support direct PPC-Library-Calls from 68K-
Functions. Note: the parameters 2-4 were shifted to the
right by one. New parameter 2: The Library-Offset (used
in the same way like in the macros RUN68K and RUN68K_XL).
- All include files were equipped with checks to the
constant POWERPCLIB_V7. If this symbol is defined then
no structures/macros are assembled, which can only be used
with powerpc.library V8+.
- Added include file 'libraries/powerpc.i'. Including this
file sets the constant mentioned above and allows to create
V7-compatible applications.
- Added the powerpc.library V7 and its history file to this
archive (directory 'v7')
2. 8.97 - Bug fixed: On PPC-Systems with CPU clocks between
250-300 Mhz, the CPU clock returned by 'GetInfo' could
have been wrong.
- Bug fixed: 'GetInfo' returned a wrong page table size.
- Improved the accuracy of the FP conversion in the crash
requester which is used to display the FP registers as
ASCII string.
19. 8.97 - On some systems with small gfx address space, the gfx
RAM was not placed into BAT registers. Now the powerpc.
library tries to find out, where the gfx RAM is located
(using cybergraphics.library) and puts the gfx RAM into
BAT registers if possible (alignment must still be
properly set).
- New environment variable 'gfxaddr' allows to specify an
address (either with or without $) to give the powerpc.
library a hint, where the gfx RAM should be.
- New versions of cybermand and voxelspace added.
- V11.3
27. 8.97 - Removed Gfx-RAM autodetection (seems to be somewhat risky)
- Forgot to add warp.library 1.2 to the WarpOS-Archive.
powerpc.library V11.3 didn't work at all...
-> warp.library V1.2 added
15. 9.97 - CyberstormPPC support added.
WarpOS *WORKS* with the CyberStormPPC-Boards !! Cybermand
is now 12-13 times faster on 604E/200 relative to 68060/50.
- Added new version of voxelspace to the archive. Added
special optimization for PPC604E.
- Added voxel.readme and voxel_english.readme to the demos
drawer. This file contains some notes about the usage of
the voxelspace parameters and known problems.
- Added english translations of WarpOS.guide and GameDev.guide.
16. 9.97 - Added a correction stage at CPU-clock calculation (in
function 'GetInfo'). The cpu clock is now displayed
completely correctly.
17. 9.97 - Problems with PPC-Enforcer and 604E fixed (NEVER use
self modifying code yourself!). One 'sync'-instruction
more, and everything works fine.
18. 9.97 - New library functions GetSysTimePPC, AddTimePPC, SubTimePPC
and CmpTimePPC for time measurement (also available vor V7)
- New small demo program 'pixelOmania' to measure the
context switch performance (i.e. to compare V7 and V8+)
20. 9.97 - Added the 'WarpRace' application to the archive (drawer
'WarpRace'). This application is a modular performance
test program. Included are several modules and module
sources.
WarpRace and all modules so far work with powerpc.library V7.
21. 9.97 - Added the 'landscape' demo to the archive (drawer
'demos/landscape'), a fractal landscape generator.
- Added new versions of 'tabletennis' and 'cyberpi' which
don't crash anymore if the powerpc.library can't be opened.
'Cyberpi' now supports both CPU's (new parameter M68K).
- V12.0
25. 9.97 - Corrected a bug in the warprace executable (CTRL-C only
breaked the current recursion level)
- Corrected a bug in warprace module 'Landscape.wrm' (mem
allocation was broken)
- New 68K library function 'GetPPCState' allows to get
information about the state of the PPC and of PPC
applications (officially available in V13)
- New tool PPCState displays the result of 'GetPPCState'
- V12.1
27. 9.97 - New env-variable 'noPPC'. If this variable is 1, then
the powerpc.library always returns 0 at initialization.
This allows to use applications, which try to open
the powerpc.library, without PPC boards (before, WarpOS
simply crashed) if it supports the 68K too.
29. 9.97 - Static board detection implemented. If problems occur or
the 68060.library of the PowerUp-Distribution is not
installed, the board type can be selected using the new
env variable 'boardtype'.
0 = auto detection using 68060.library
1 = developer board
2 = CyberstormPPC
- New env variable 'earlyterm' implemented (also for V7).
If the variable is not 0, then the mirror task of a 68k
task is removed at the last CloseLibrary of the 68k task,
instead at removal of the task.
Hope, this will fix the problems with WShell.
The tools stackppc and changemmu DON'T work with earlyterm=1!
Use the 68K command stack to modify the PPC stack (the PPC
stack is about double the size of the 68K stack).
- 12.2
8.10.97 - RunPPC now interprets the PP_OFFSET field in the same way as
Run68K does. If PP_OFFSET is zero, than it works as before,
if it is not zero, a PPC library call is performed with the
base in PP_CODE and the library vector offset in PP_OFFSET.
- Description and prototypes of SetExcMMU and ClearExcMMU were
missing. Corrected.
- Bug fixed: FreeXMsgPPC trashed r2.
- Inter-CPU messages can now be sent asynchronely, so they
may not be answered anymore by the foreign task. But it is
really important, that the processor frees the message which
allocated it (even if it is another task).
- Exec/Replymsg now doesn't crash anymore, when called with
an InterCPU-msg without ReplyPort (but don't call exec/
ReplyMsg nevertheless without ReplyPort, why should you?).
Exec/ReplyMsg now simply does nothing in this case.
- New library function SetReplyPortPPC allows to exchange the
reply port of a message (internal PPC message or InterCPU
message). Officially available in V13.
- Added support of fields TC_SWITCH and TC_LAUNCH in the
exec task structure. If the appropriate bits in TC_FLAGS
are set, these functions are called whenever a PPC task
looses resp. gets the CPU (equal behaviour like exec).
- New library functions 'SnoopTask' and 'EndSnoopTask'
allows to monitor the beginning and the end of a PPC task
(useful for debuggers). Officially available in V13.
- V12.3
13.10.97 - Voxelspace 1.5 added. Window mode is now supported
(only for gfx boards).
- Cybermand 1.2 added. Window mode is now supported
(also for PAL)
14.10.97 - Landscape 1.1 added. Window mode is now supported
(also for PAL)
15.10.97 - Corrected clib/powerpc_protos.h (was very buggy)
16.10.97 - Time Measurement was UNRELIABLE! Busclock could have
been measured wrong. Corrected (once again, one 'sync'
more...)
- ChangeMMU was not correct. IBAT2 and DBAT2 were
exchanged.
22.10.97 - Bug fixed: FP-Registers f9-f13 were passed incorrectly
to custom exception handlers.
28.10.97 - Major internal change: all board specific stuff is
moved from powerpc.library to warp.library. The
powerpc.library is now completely board-independent
and will work unmodified with all PPC boards.
The warp.library has now become a real HAL, since
it now also provides access to board specific
resources using a standardized interface.
IMPORTANT NOTE: The powerpc.library V12.4 and higher
requires the warp.library V2 to be installed!!
- Some bugfixes, which maybe could be responsible
for some deadlocks in rare cases.
- V12.4
6.11.97 - Minor changes in powerpc/powerpc.i (macros RUNPOWERPC
and RUNPOWERPC_XL) to avoid linker warnings.
8.11.97 - Bug in clib/powerpc_protos.h fixed. The snoop functions
were enabled for V7 by mistake.
- V13.0
22.11.97 - Oh, DAMN. Exec tasks couldn't use RunPPC because of
DOS calls. These calls are now handled by a new
support process called 'Babylon5'.
- V13.1
25.11.97 - Some 'sync' instructions added to warp.library (maybe
this can solve some problems with PPC crashes). V2.1
26.11.97 - The powerpc.library returns now 0, if ppc.library is
active and if someone tries to open the powerpc.library.
27.11.97 - Bugs fixed in pragma/powerpc_lib.h: SPrintF was written
instead of SPrintF68K, and GetPPCState was enabled for
V7, by mistake.
1.12.97 - NOTE: it is possible, that a PPC application crashes,
if it launches WarpOS (that means, if it is the first
PPC application) AND if SnoopDos is monitoring
exec/OpenLibrary. The crash seems to happen in the
Patch of SnoopDos. Run a PPC program earlier or avoid
monitoring exec/OpenLibrary with SnoopDos to avoid
these problems!
16.12.97 - New version of voxelspace added. It now supports
OS3.0 multibuffering with P96 -> No flickering anymore!
Use 'TURBOGFX' or 'WARP' as CLI parameter to switch
on multibuffering.
- V13.2
6. 1.98 - Some tags and defines were missing in powerpc.h
(GetInfo)
2. 2.98 - New function 'GetHALInfo' allows to retrieve some
information about the WarpUp HAL's status. At the moment
the number of emulated alignment exceptions can be
evaluated (might be useful to find performance bottlenecks)
This function is officially available in V14.
- New tool 'ShowHALInfo' displays all results of the
function 'GetHALInfo'
4. 2.98 - The WarpUp-HAL (warp.library) was splitted up into two
parts: the main HAL and in a hardware driver. From
warp.library V3 on, there must be installed a warpHW.library
for a specific hardware.
The new directory 'hwdrivers' contain all drivers currently
available, a description how to make a new hardware driver
and a StormC template project to help developing a new driver.
- If warp.library V3+ is installed the env variable 'boardtype'
is ignored and can be deleted.
- The BlizzardPPC hardware driver is currently an untested
prototype.
- warp.library bumped to V3.0
- A new tool 'GetDriverInfo' prints out an identification string
of the currently active WarpUp hardware driver.
5. 2.98 - A bug fixed, which was introduced with the reorganisation
of the warp.library -> warp.library V3.1
6. 2.98 - A lot of internal changes to support a special project.
Most API functions were modified a bit, hopefully all
should continue working properly.
- V13.3
10. 2.98 - First-Aid text updated. There are still too many people
which don't know that WarpOS can't run in parallel with
the ppc.library. UFF... Another note points to the problems
with CyberGraphX versions with ppc.library support. The best
solution is not to install this version. Better wait for
a graphics software with REAL PowerPC support.
1. 3.98 - Bug fixed in the WarpOS memory management system. Allocations
> 512KB could go wrong (or always went wrong, I don't know).
- Dynamic scheduler finally implemented. The new scheduler works
very different to the old scheduler and improves the
multitasking capabilities very much. Please have a look at the
WarpOS documentation (Chapter 'multitasking/The WarpOS Kernel')
to get more detailed information about the new scheduler.
- Important: the old task priorities have no effect anymore! Use
the NICE values to give more or less CPU time to specific
tasks.
- A lot of new elements added to the task structure (most
private, a few read only)
- New API function 'SetScheduling' allows to affect the reaction
time of low-activity-tasks. Both low and high values can have
advantages and disadvantages.
- New tool 'sched' to set the reaction time mentioned above.
- 'showtasks' now also prints out the NICE value and task ID.
Note, that this version of 'showtasks' can't be used with
earlier version of powerpc.library anymore.
- 'showinfo' now also prints out CPU load and system load.
This version also requires powerpc.library 14+.
- Bug fixed: PPCtask structure definition in C header file was
totally buggy.
- New API function 'FindTaskByID' allows to get the task
address by specifying the task's ID.
- New tool 'stat' prints out task statistics, such as name,
taskID, CPU usage, activity etc. This tool was written in C
and the corresponding source is located in source/tools/stat/.
- Bug fixed: creation of new 68K tasks in the powerpc.library
could go wrong (which could maybe have prevented WarpOS from
working on certain systems).
- New: if a CLI-Background process creates a new mirror task,
the name of the command is used for the PPC task name instead
of the process' name (which was usually 'Background CLI_PPCx')
This improves readability of the 'stat' output.
- New PPC tasks (created by 68K tasks) now get at least
32KByte stack.
- **************** IMPORTANT ******************
WarpOS failed on several systems due to stack problems of
the RAMLIB (its stack is 2K on my machine, incredible...).
The powerpc.library now performs stack swapping using
exec/StackSwap where the critical (and stack-consuming)
code parts are situated. This should especially solve
those problems which occurred with RTGMasterPPC.
2. 3.98 - C-Prototype file completely rearranged. The file
clib/powerpc_protos.h has been made much more compatible
to alternative compilers. The Storm-specific extensions
are now located in the file stormprotos/powerpc_sprotos.h.
Please design prototype files for future shared libraries
in the same way to support all compilers.
3. 3.98 - Bug fixed: Removing tasks which were created from the
other CPU resulted in crashes.
- New tool 'killppc' allows to remove PPC tasks by
specifying the task ID (which can be evaluated using
the 'stat' tool). Very useful to eliminate crashed
tasks.
- The source of 'killppc' is available in C
(source/tools/killppc)
Never kill the shell's mirror task while the shell operates
on the 68K side.
- The crash requester now also prints out the task ID
- New API function 'SetNiceValue' allows to set NICE values
of a task.
- New tool 'niceppc' allows to set the NICE value of a
PPC task. This can be used to affect the execution speed
of tasks and it also affects reaction time.
- The source of 'niceppc' is available in C.
- TASKATTR_MOTHERPRI now also forces child tasks to get
the mother's NICE value.
- New task attribute TASKATTR_NICE to set the NICE value
of new created tasks.
4. 3.98 - Now it's allowed to free Inter-CPU messages sent from
the foreign CPU using FreeXMsg[PPC]. But note, that this
is internally done using a cross call.
- Removed EXEC tasks were not always caught by the
powerpc.library, because the task termination routine of
EXEC doesn't call RemTask() over the library interface.
Could lead to problems when killing its mirror task on the
PPC side. Fixed now by a small AddTask() Patch.
5. 3.98 - Now all memory allocated by a PPC task is freed at task
removal. Earlier, only those entries in TC_MEMENTRY were
freed.
- The powerpc.library API is now also available in AmigaGuide
format (see directory 'docs')
- A new file 'includes.guide' is now in 'docs' which contains
an overview of all include files.
- Updated the WarpOS documentation.
- Added a new Easyrequester which pops up if the ppc.library
was detected.
- The prototype of WaitPortPPC() was missing. Corrected.
- Added FD file to the archive (include/fd/)
- V14.0
12. 3.98 - Bug fixed: Corrupt code caused problems with exception
handlers.
14. 3.98 - Problem detected. The ppc.library was put into
the flash ROM of the Blizzard Board, therefore WarpOS
can't work in the known way.
16. 3.98 - More stack problems solved by exec/Stackswap. Implemented
in warp.library -> V3.3
- ELF terminator implemented. The env-variable 'Terminator'
can be used to launch WarpOS while ppc.library is running.
Any ELF activity is instantly terminated. Still does not
solve the problems with the new boards.
- A second Easyrequester implemented to warn the user before
using the ELF terminator facility.
- New env variable 'HideWarning' prevents both easy
requesters from appearing. Note: the combination of
Terminator = non-null and HideWarning=1 is dangerous,
because the ELF-terminator is activated without any
warning.
- First Aid text updated, guess why.
- 'stat' had a small bug. Additionally memory usage was
decreased and source design was improved.
- env-variable 'boardtype' removed
27. 3.98 - New task flag TASKPPC_THROW implemented. If set, the task
causes an instruction breakpoint exception when it is launched
next time by the scheduler.
- New tool 'throw' uses this flag and can be used to interrupt
tasks which are caught in endless loops. C Sources are
available.
- Changed the tag EXCATTR_ID to EXCATTR_PRI (powerpc/powerpc.h).
Please update your sources, if you used this tag.
4. 4.98 - Added a note to the autodoc of FreeVecPPC concerning cache
coherency. Only important for asynchron applications.
- V14.1
5. 4.98 - Finally the WarpOS prototype worked the first time on a
Blizzard board!
6. 4.98 - First Aid updated to solve the problems of the WarpUp demos
in conjunction with CyberGFX emulation for AGA.
10. 4.98 - More Blizzard problems solved.
16. 4.98 - Bug fixed: WaitTime was buggy, in case that the task was
woken up by standard signals instead of the timeout signal.
17. 4.98 - New API PPC function 'TrySemaphorePPC' does the same as
'ObtainSemaphorePPC' but supports a timeout value, which
defines when the task should give up to obtain the semaphore.
21. 4.98 - Added a msgport entry to the task structure which can be
used in a similar way than the msgport of dos processes.
Currently the msgport isn't used by WarpOS itself, but
applications might simulate the WBMsg mechanism which is used
for passing parameters from the Workbench to new created
tasks on 68K side.
Note, that any access to the msgport entry must be locked
by LockTaskList! Also note, that the msgport is instantly
available to the mother task after returning from
CreateTaskPPC. Finally note, that this msgport is not for
general application use, just like on 68K side.
- The memory cleanup mechanism (implemented in the Voyager
task) introduced at 5.3.98 could lead to severe problems
if a task was removed which created child tasks earlier (which
were still alive).
- New cache flag CACHE_DCACHEINV allows to invalidate an
selected address range. *NEVER* use this unless you really
need it (and that's mainly for asynchron programming).
- New 68K API function 'SetCache68K' provides the same
functionality than 'SetCache' on PPC side (except cache
locking/unlocking). The special 68040/68060 commands are
used to achieve better results than CacheClearE does.
27. 4.98 - The memory cleanup mechanism was still broken in the
case that protected memory was freed.
- V14.2
29. 4.98 - FindTagItemPPC and GetTagDataPPC were totally broken.
2. 5.98 - If a page didn't fit into the primary PTEG, then the
insertion into secondary PTEG went totally wrong. But
anyway, the chance for this error to appear in practice
was almost 0. Correct in warp.library 3.5.
7. 5.98 - Bug fixed in powerpc/tasksPPC.h: The value SNOOP_xxx
were all wrong.
10. 5.98 - Changed the BAT setup for the boot process. The earlier
setup failed if motherboard-RAM was involved instead
of the RAM on the CPU board.
23. 5.98 - Added support for the blackbox emulation concept.
- V14.3
20. 6.98 - More problems with the memory cleanup mechanism
fixed.
27. 6.98 - BUG corrected: CTR could be trashed by the scheduler.
Don't know if this bug was introduced recently or a
long time ago.
30. 6.98 - Bumped warp.library to V4.0 (part of the first 'Blackbox
emulation' prototype).
- Bumped powerpc.library to V14.4 (part of the first
'Blackbox emulation' prototype).
- V14.4
5. 7. 98 - Added modifications for blackbox emulation. Now WarpOS
applications can be run in parallel to the emulated
AMIGA-OS.
6. 7. 98 - Corrected documentation error in powerpc.guide/powerpc.doc.
FreeXMsg gets the message in a0, not in a1
- V14.5
1. 8.98 - New env variable 'force' forces the address stored in
'gfxaddr' to be added to the PPC MMU, even if no matching
address space was found in the system structures (has
to be set to 1 if CyberVisionPPC hardware is present).
2. 8.98 - Added a new terminator (number 2), which should fix the
problems with the new P5 flash ROM.
- V14.6
27. 9.98 - Prototypes for InsertPPC were broken.
5.11.98 - Added another 'stackswap' code, which is only executed
by tasks called 'ramlib'. This should reduce the
stack problems with ramlib.
19.12.98 - Added 'WarpStat' to the tools directory. It does the same
as 'stat', but provides a nice GUI (MUI required).
20.12.98 - New env variable 'powerpc/nopatch' does not prevent
the ppc.library to be opened when WarpOS is running.
Set this, if you would like to use the PowerUp emulation
software (which is in development).
- New PPC API function 'NewListPPC' to initialize exec
lists. Valid after V15.
- New flag for PP_FLAGS (call structure): PP_LINEAR.
Allows to pass r3-r10 instead of the registers assigned
to the 68K registers (only available for RunPPC).
- New tag for CreateTaskPPC (TASKATTR_INHERITR2), which
forces the new task to use the r2 of the parent task
(and so can share its variables).
21.12.98 - New API function 'SetExceptPPC' allows to define
signals, which enforce the execution of exception
handlers, if they are sent. See the autodocs for
differences to exec/SetExcept. Valid after V15.
22.12.98 - New 68K API function 'CreatePPCTask' does the same as
CreateTaskPPC on the PPC. It was just added for
simplicity to allow 68K applications to create new
PPC tasks without having to do a context switch and
then call CreateTaskPPC.
Valid after V15.
- V14.7
31.12.98 - powerpc/RemHeadPPC was broken (return value was
wrong).
13. 2.99 - FreeVecPPC could trash several registers. Corrected.
- V14.75
14. 2.99 - New env variable 'powerpc/seginfo' can be used to
let WarpOS print out segment information if PPC crashes
occur. Hunk/offset pairs are given for the excepting
instruction and for all sub-calls in the stackframe.
This variable expects a numeric value, which corresponds
to the max. number of lines written. Set this to some
value like 100.
This feature requires 'SegTracker' and 'Sushi' to be
installed.
20. 2.99 - New API functions 'ObtainSemaphoreSharedPPC',
'AttemptSemaphoreSharedPPC,'ProcurePPC','VacatePPC'
implement shared and message-based semaphores. Valid
after V15.
- If powerpc/force was set, while powerpc/gfxaddr wasn't,
a lot of troubles could appear. Corrected.
- There was a slight chance that GetSysTimePPC could
return a wrong result (if an overflow of TBL occurred
while reading the time base). Corrected.
- New flag PP_THROW for RunPPC. If a PPC call is done with
this flag set, then an exception is caused before entering
the function (illegal instruction exception/trap). This
might be useful for debuggers which want to trigger a
breakpoint on every PPC call. The exception can be
distinguished from other 'trap' exception by examining
r0, which contains the string "WARP".
Note, that this flag is not available for Run68K.
21. 2.99 - New tag for CreateTaskPPC: TASKATTR_ATOMIC. Allows to
create non-interruptable tasks (except if task enters
waiting state). Note, that non-interruptable tasks still
can be interrupted by exceptions/interrupts, but not by
other tasks. Fixed priorities are NOT supported.
Such tasks might have a severe impact on the multitasking,
therefore you should never use it without serious
justification.
Important: this feature is specific to the WarpOS scheduler.
If the WarpUp-API would be implemented on top of another
scheduler, then this feature might not work anymore.
- Added the possibility to add exception handlers for the
external interrupt. Those handlers are always executed,
if the external interrupt was triggered using WarpOS API
functions: CauseInterrupt (PPC) and CausePPCInterrupt (68K).
- V14.8
1. 3.99 - The terminator mechanism was too unreliable. Corrected.
10. 3.99 - New memory management system added (written by Frank Wille),
which replaces the old one.
- Bug fixed in CreateTaskPPC. The space to store the task
name was one byte to short.
- Added 'BPPCFix' from Frank Wille to the WarpUp archive
(directory tools/BPPCFix). Allows to reboot BlizzardPPC
machines without launching the ppc.library.
14. 3.99 - New API functions 'CreatePoolPPC', 'DeletePoolPPC',
'AllocPooledPPC, 'FreePooledPPC' implement pooled memory
functions. Valid after V15.
- V14.9
2. 4.99 - Severe bug in the scheduler fixed, which sometimes could
have been responsible for multitasking hang-ups and
for lost signals.
3. 4.99 - New API function RawDoFmtPPC does the same as exec/RawDoFmt.
Valid after V15.
- V15.0
5. 6.99 - WaitPortPPC prototypes were missing
(stormprotos/powerpc_sprotos.h)
6. 6.99 - FreeAllMem leaded to crashes if the task has allocated
protected memory. Additionally semaphores were missing.
xx.xx.99 - Made the kickstart ROM user-readable (allows to use
UAE with the existing kickstart ROM).
12.10.99 - SetCache68K didn't work when called in supervisor mode.
19.11.99 - FD entry for FreeXMsg was faulty.
30.11.99 - Updated the memory management, it shouldn't waste
that much memory anymore.
13. 2.2000 - Bugfix: CopyMemPPC didn't handle some cases with
small size values.
- CPU clock measurement wasn't 100% perfect, now it
hopefully should catch all cases.
- Bugfix: SetCache68K trashed a2 and a6
- Documentation Bugfix: replaced 'struct PowerPC'
by 'struct PPCArgs'
- Added support for system call exception.
14. 2.2000 - Bugfix: sending signals across CPU's didn't work at
all in some cases.
- Bugfix: memory allocation using the PooledMem-API
could fail in some cases (fixed by Frank Wille)
15. 2.2000 - Header file 'powerpc/tasksppc.h' was buggy, some
of the task attribute flags (NICE, INHERITR2 and
ATOMIC) had wrong values
- *** IMPORTANT NOTE: The task attribute TASKPPC_INHERITR2
doesn't work at all for programs compiled with
some or all versions of StormC PPC 4.0 Beta (only the
4.0 *BETA*!), because of the way these compiler versions
do PPC library calls. Check out the updated documentation
of 'CreateTaskPPC' to learn about how to bypass this
problem. ***
17. 2.2000 - New env variable 'EnAlignExc' disables the exception
handler for doing odd FPU accesses. WarpOS developers
should set it, users shouldn't.
Modifications are done both in powerpc.library and
warp.library.
18. 2.2000 - Major bugfix: Some cache flush mechanisms didn't work
correctly, which could lead to incorrect behaviour
of the XMsg system and other problems.
Modifications are done both in powerpc.library and
warp.library.
- New env variable 'UseDisable' makes WarpOS use
a stronger locking for triggering the PPC interrupt
(which is also used for normal context switches).
Never set this unless you are explicitely asked to do so!
20. 2.2000 - Corrected the TOC of powerpc.doc.
- Fixed a few errors reported by the 'Patchwork' tool.
2. 3.2000 - New API function 'PutPublicMsgPPC' allows to safely
send messages to public message ports. Valid after V16.
4. 3.2000 - New API function 'AddUniquePortPPC' replaces 'AddPort'.
The new function takes care about race conditions when
several tasks attempt to add the same port. Valid after V16.
- New API function 'AddUniqueSemaphorePPC' replaces
'AddSemaphorePPC'. The new function takes care about
race conditions when several tasks attempt to add the
same semaphore. Valid after V16.
9. 3.2000 - New API function 'IsExceptionMode' allows to find out,
whether the CPU is currently running in exception mode.
Valid after V16.
20. 3.2000 - Raised the stack size of some WarpOS system tasks
to prevent problems.
2. 4.2000 - Rewrote the 'showtasks' tool from ASM to C and fixed
a potential deadlock situation.
17. 8.2000 - Had a long long break.
- Fixed erroneous prototype in header files: RemTailPPC
- Fixed a little implementation error inside WarpOS
18. 8.2000 - A change made in 18.2.2000 introduced new problems with
'SetCache', a faulty function in warp.library has been
corrected.
- Corrected a few places, where the TB registers weren't
read correctly.
19. 8.2000 - WaitTime didn't work for time-spans greater than some
value (around 150s).
22. 8.2000 - CmpTimePPC was completely broken.
23. 8.2000 - A new tag for CreateTaskPPC (TASKPPC_NOTIFYMSG) allows
the application to provide a message which is sent
to the reply port, as soon as the child task has been
removed from the system.
- Some tags for GetInfo were missing in the API docs.
22. 9.2000 - Fixed a problem in the unaligned FP access emulation code.
25. 9.2000 - Fixed a little problem in the new 'showtasks' tool.
- Made some of the tools executables much smaller.
29. 9.2000 - Fixed a serious problem in the generic crash
handling code, introduced some time ago.
22.10.2000 - Fixed a little error in powerpc.h
29.10.2000 - Hopefully fixed the infamous 'multitasking lock problem'.
- Integrated the CSPPC233Fix tool (without reporting).
30.10.2000 - New env variable 'No233Fix' disables the integrated
CSPPC233Fix mechanism.
1.11.2000 - Fixed a few little bugs in warp.library
4.11.2000 - Included PowerUpEmu v0.8c into the WarpUp archive
- powerpc.library V16.0
- warp.library V5.0
- WarpUp 5 beta release
25.11.2000 - Reduced the priority of the CSPPC233Fix exception
handler.
20.12.2000 - CPU clock measurement was still not ok. Some overclocked
PPC's were detected wrong. Corrected.
7. 1.2000 - Added new exception mechanisms (currently private)
- V16.1beta1
21. 1.2000 - Solved some problems in the memory management code.
7. 2.2000 - Solved some problems concerning the alignment exception
handling code
- warp.library V5.1
- powerpc.library V16.1
- WarpUp 5.1 release