cellSpursAddUrgentCommand searches in 4 slots for an empty slot to put the command at.
At first, it seems to do so unordered.
Meanwhile, on SPU side, it expects an order between all the commands because it pops them it in FIFO manner.
Not keeping track of how many commands are queued in total.
After second observation of cellSpursAddUrgentCommand, something odd comes takes places here.
Usually, reservation loops are individual and are expected to be closed without any changes of the previous loop affected by the proceeding one.
But in this case, after a single failure, the entire operayion is reset, a loop of 4 reservation operations suddenly is reset completely.
This makes one wonder if it the HW expects sometjing else here, perhaps it caches the reservation internally here?
After some adjustments to LDARX and STDCX to cache the reservation between succeeding loops, Metal Gear Solid 4 no longer freezes!
Notably, runtime-built SSSE3 version of VPERM.
Some other instructions are refactored and vectorized.
Aarch64 impl of multiple instructions including VPERM.
* Update asmjit dependency (aarch64 branch)
* Disable USE_DISCORD_RPC by default
* Dump some JIT objects in rpcs3 cache dir
* Add SIGILL handler for all platforms
* Fix resetting zeroing denormals in thread pool
* Refactor most v128:: utils into global gv_** functions
* Refactor PPU interpreter (incomplete), remove "precise"
* - Instruction specializations with multiple accuracy flags
* - Adjust calling convention for speed
* - Removed precise/fast setting, replaced with static
* - Started refactoring interpreters for building at runtime JIT
* (I got tired of poor compiler optimizations)
* - Expose some accuracy settings (SAT, NJ, VNAN, FPCC)
* - Add exec_bytes PPU thread variable (akin to cycle count)
* PPU LLVM: fix VCTUXS+VCTSXS instruction NaN results
* SPU interpreter: remove "precise" for now (extremely non-portable)
* - As with PPU, settings changed to static/dynamic for interpreters.
* - Precise options will be implemented later
* Fix termination after fatal error dialog
Rewritten the following global utility constants:
`umax` returns max number, restricted to unsigned.
`smax` returns max signed number, restricted to integrals.
`smin` returns min signed number, restricted to signed.
`amin` returns smin or zero, less restricted.
`amax` returns smax or umax, less restricted.
Fix operators == and <=> for synthesized rel-ops.
Add atomic_t<>::observe() (relaxed load)
Add atomic_fence_XXX() (barrier functions)
Get rid of MFENCE instruction, replace with no-op LOCK OR on stack.
Remove <atomic> dependence from stdafx.h and relevant headers.
