the idea is that with SSE, doing operations that don't modify all the vectors can give false-dependencies, and in some situations prevent CPU's out-of-order execution (slows things down).
so the solution is to only use stuff like "movss" when you need to preserve the upper 3 vectors, if not, its always better(faster) to use movaps.
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@751 96395faa-99c1-11dd-bbfe-3dabce05a288
note: most of the microVU EFU opcodes are implemented with completely different algorithms than zerorecs. this might prove to be more accurate, but i mainly did it to avoid using x87 FPU instructions (since i'm using mmx regs for storage).
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@749 96395faa-99c1-11dd-bbfe-3dabce05a288
Small changes to makefile to enable code to compile out of the box. Fix to romdir.c to avoid uninitialised data being written to output.
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@743 96395faa-99c1-11dd-bbfe-3dabce05a288
<drk||Razi>cotton2: write more helpful logs kthx ;p
<cotton2>doesn't matter, no-one cares what i write since it doesn't effect anything for now
<Krakatos>cotton, stop posting those useless commit comments XD
<feal87>no no, please continue. they're fun, i look forward to read them
<feal87>from time to time
<feal87>:°D
<cotton2>lol :D
<Dwarg>Please spend more time making them more amusing.
<drk||Razi>cotton2: it does matter
<cotton2>dwarg: yeah i know!
<Dwarg>drk||Raz: Why? They're useless for reversion testing
<cotton2>i have to think of good stuff to write :O
<drk||Razi>when the next vu coders (if any, ever ;p) want to look at your code .. and the history is full of crap
<drk||Razi>that won't be much useful
<drk||Razi>;p
<cotton2>there won't be a next vu coder!
<Dwarg>Comments in the actual code would be more useful, wouldn't they?
<cotton2>my code is perfect!
<drk||Razi>lol
<cotton2>>.> <.<
<cotton2>but seriously
<cotton2>i don't think it can get better
<cotton2>unless like
<Dwarg>Rather than going back and comparing SVN comments to changes made way back when
<cotton2>you want to support AVX
<cotton2>or w/e intel's new SSE thing is called
<feal87>and anyway AVX is like 3 years away
<feal87>in that timeline pcsx2 i think will be stabilized
<feal87>:°D
<cotton2>yeah
<drk||Razi>cotton2: just log kthx
<drk||Razi>implemented y,x,z
<drk||Razi>:>
<cotton2>thats what the diffs are for!
<feal87>and anyway really its useless for this stage
<drk||Razi>yea i know
<feal87>until microVU is active and used by PCSX2
<cotton2>i'm just implementing different opcodes though, its not like i'm chaning features
<drk||Razi>you can tell anything from the code -- no comments or changelog needed.Right ? ;p
<feal87>then every change should be documented for regression testing
<cotton2>drk: yup!
<cotton2>well
<cotton2>its not like i'm changing stuff
<cotton2>i'm just implementing things that havn't been coded
<cotton2>so theres nothing to regress to
<feal87>yep
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@742 96395faa-99c1-11dd-bbfe-3dabce05a288
Appended notes:
* ADD in iFPUd should be bit accurate (unless it isn't. needs TESTING)
* MUL in iFPUd with Software Emulate MUL is as much as I could get near bit accurate (not quite enough, probably. needs TESTING)
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@728 96395faa-99c1-11dd-bbfe-3dabce05a288
* Fixed Memcard init so that Memcard1 isn't default in both slots (oops!)
* Fixed Memcard path logic so that cards outside your pcsx2 folder can be browsed/selected.
* Fixed CDVD-to-BIOS time sync (I simply forgot a function call!)
* Optimized yuvrgb_sse2, by using Mod/RM form instructions.
* Win32: Same optimization applied to FreezeXMMRegs and FreezeMMXRegs (linux already had this optimization)
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@719 96395faa-99c1-11dd-bbfe-3dabce05a288
Pcsx2: Small speedup for the IOP's recClearMem (used a forceinline to cure MSVC's laxidazical inlining)
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@714 96395faa-99c1-11dd-bbfe-3dabce05a288
Savestates: Pcsx2 now errors when it encounters a savestate made by a newer version of pcsx2.
Added a new SafeList type to the SafeArray collection (not well tested yet).
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@701 96395faa-99c1-11dd-bbfe-3dabce05a288
Removed various instances of legacy VM code that is no longer needed for reference purposes.
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@695 96395faa-99c1-11dd-bbfe-3dabce05a288
cottonvibes