Pcsx2 64 Bit Latest Free And Fast

JackShmReadWritePtr::JackShmReadWritePtr - Init not done for -1, skipping unlock.

I cant play any games, is there any incompatibility with linux.

Expression GetExactSampleRate( hwParams, defaultSr ) failed in srchostapialsapalinuxalsa.c, line: 895.

ALSA lib pcm.c:2565:(sndpcmopennoupdate) Unknown PCM cards.pcm.rear.

ALSA lib pcm.c:2565:(sndpcmopennoupdate) Unknown PCM cards.pcm.centerlfe.

ALSA lib pcm.c:2565:(sndpcmopennoupdate) Unknown PCM cards.pcm.side.

ALSA lib pcmroute.c:869:(findmatchingchmap) Found no matching channel map.

Cannot connect to server socket err Arquivo ou diretrio inexistente.

ALSA lib pcmusbstream.c:486:(sndpcmusbstreamopen) Invalid type for card.

Most 64bit CPUs today support it, so it looks like a good candidate for 64bit recompilation.

The x86-64 architecture offers many more registers and can potentially speed up games by a significant amount.

Pcsx2 64 Bit Latest Free And Fast

Up to now, Pcsx2 has largely been ignoring the 64 bit arena because there have been massive compatibility issues, the developers werent sure if it was really worth it, and adding a new bug-free and fast recompiler to the existing code base is a very painful process.

Anyone seriously suggesting this to a dev would have been laughed out of the chat room.

However, the upcoming 0.9.2 release is looking very stable and after doing some research, we have decided to add support for x86-64 recompilation, both for 64bit versions of Linux and Windows (yes, Linux support is returning).

Before going into technical details, I want to cover the current Pcsx2 recompilation model.

Pcsx2 Recompilation Every different instruction set requires either an interpreter or a recompiler to execute it on the PC.

Interpreters are implemented with regular high-level languages and are platform independent.

They are extremely important for testing and debugging purposes.

For example, interpreting a simple 32bit EE MIPS instruction (code) might look like.

For example, we know the instruction at address 0x1000 will never change, so there is no reason why the CPU needs to execute the switch statement and decode the instruction every single time it executes it.

So recompilers generate the minimal amount of assembly the CPU needs to execute to emulate that instruction.

Because were working with assembly, recompilation is a very platform dependent process.

Simple recompilers look at one instruction at a time and keep all target platform (in this case, the PS2) registers in memory.

For every new instruction, the used registers are read from memory and stored in real CPU registers, then some instructions are executed, and finally the register with the result is stored back in memory.

Before 0.9, Pcsx2 used to employ this type of recompilation.

More complex recompilers divide the code into simple blocks (no jumpsbranches) and try to preserve target platform registers across instructions in the real CPU registers.

There are many different types of register allocation algorithms using graph coloring.

Such compilers might also do constant propagation elimination.

A common pattern in the MIPS Emotion Engine is something like: lui s0, 0x1000 lw s0, 0x2000(s0) If we propagated the constants at the lw, we know that the read address is 0x10002000.

A little more complex recompiler will know that 0x10002000 corresponds to the IPU, so the assembly will call the IPU straight away (without worrying about memory location translation).

At the end of every block, all the registers will have to be pushed to memory because the next simple block that needs to be executed cant be predicted at recompilation time (ie: branch if x 0 depends on the value of x at runtime).

An even more complex recompiler can work on the global scale by finding out which simple blocks are connected to which.

Once it knows, it can get rid of the register flushing at the end of every simple block by simply telling the next blocks to allocate the same real CPU register to the same target platform register.