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1997-10-06
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*******************************************************************************
*
* Welcome to warp speed!
*
* © 1997 HAAGE&PARTNER Computer GmbH
*
* 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
* V11.0 - Virtual signal system / native msg handling
* V12.0 - Memory protection support / InterCPU msg handling
* CyberStormPPC support
* *** Official Release ***
*
*******************************************************************************
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 only 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