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Text File | 2001-03-22 | 50KB | 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