Library is not working

[DvdBoon]

Just tracking the stuff that is needed for a first working version. Out of scope will be special patches (like for AmigaAmp), A1200 code (for now), Altivec code and all cards except K1/M1.

First working version will only be pci.library compatible.

Currently, the library is in the debugging phase. If all the bugs are fixed, this issue can be closed. Missing features will be added while being tracked through the other issues.

[DvdBoon]

Needed for the kernel to be usable:

• [x] External Exception working
• [x] Decrementer Exception working
• [x] Privilege Exceptions working (Super/User)
• [x] Task switching working
• [x] Alignment Exception working
• [x] Data storage Exception working
• [x] WaitTime() function working
• [x] AllocVec68K/FreeVec68K/Run68KLowLevel/WaitFor68K working
• [x] CreateTaskPPC working
• [x] Run68K/Mirror tasks working
• [x] RemTask/DeleteTaskPPC working
• [x] Run68k fixed (e.g. it hangs in WarpRace 68K context switch module)
• [x] Fixed artifacts as appearing in e.g. CyberMand and VoxelSpace (was f0 related)
• [x] Custom exception handlers working
• [x] wosdb debugger working
• [x] Fixed artifacts as appearing in Landscape (was fpscr related)
• [x] Check context switch speed RunPPC (240->470 microseconds. Asm->C related, not overall speed critical)
• [x] Pool memory functions working
• [x] AllocVecPPC/FreeVecPPC working
• [x] Cross-CPU signalling
• [x] Final check on ObtainSemaphorePPC/ReleaseSemaphorePPC pair
• [x] Kernel ready for use

Onwards to PPC function testing.

[DvdBoon]

First time today that programs with complex screen manipulations came to life (SDL, Warp3D). It is clear that there are still memory allocation/free problems (Quake II) and that there are signalling problems (FreeSpace). The RunPPC latency is not critical as it is not used in many programs. The speed of Run68K however is critical. Stuff like Encore demos (bynight, sulaco, plus) and some games (glQuake) now work.

[DvdBoon]

Ticked off memory functions but needs more stress testing. At least no double freeing, corrupt memory list stuff or crashes occur. Not sure about memory leaks yet but those are at the moment less critical

[DvdBoon]

Memory functions should be all working correctly now. Quake 2 is now running. It was previously quitting with a not enough memory error. Last hurdles are the inter-CPU signalling and the high Run68K latency. Not sure if they are related.

[DvdBoon]

There is nothing wrong with the inter-CPU signalling, the semaphore functions are behaving badly. I wll also put the Run68K l;atency in a different task when the semaphores are fixed.

[DvdBoon]

Quake 3 now running

[DvdBoon]

Some almost never used functions might still be buggy, but the kernel itself appears to be working seeing that even Q3 runs now on it.