New LLE RSP Plugin (accurate, fast but untested?)

[HatCat]

Been trying to get z64gl w/ GLEW32 dev building on GNU GCC and having issues with all the libraries. Took a break from that and overlooked some legacy statements in the current plugin.. seems there is a more direct approach to decode sign-extended immediate offsets for the transactions between data memory and the vector register file.

The old method (not current, but used in most applications) was the if-else scan:

offset = inst & 0x0000FFFF;
if (offset & 0x0040)
    offset |= ~0x007F;

Since neg(x) is not(x) + 1,
-0x0040 = ~0x0040 + 1 = 0xFFBF + 1 = 0xFFC0,

it would be much faster to say:

offset  = inst & 0x0000FFFF;
offset |= -(inst &= 0x0040);

...instead of applying the `setne` opcode as such:

offset  = inst & 0x0000FFFF;
offset |= -1 * !!(inst &= 0x0040); /* ((inst &= 0x0040) != 0x0000 */

One somewhat blatantly missed speed-oriented change I will have put into the next release, if I ever see enough information in this thread to put one up.

[squall_leonhart]

do it, bro.

[HatCat]

Eh.


At least 1 LLE bug report,

or,

Find the geometric formula defining the area of a Jewish star.


Bah, it would be nice if emulation used some of my math skills for a change.
The applied math is kind of limited to arithmetic / bit-wise.

[mesk14]

There are no more lines in Ocarina of Time using z64gl

The following games have been tested using both Jabo D3D8 and z64gl

All Star Baseball 99-this game works fine until the players take the field.Then it crashes with this error.Same for both plugins



All Star Baseball 2000-this game works fine until players take the field,then the speed drops to an unplayable rate.Both plugins are the same,although z64gl is just a sliver faster,but still unplayable.

All Star Baseball 2001-This game is playable with both plugins! yay!

Ill be testing more games today,ill test as many as I can to help out.Any specific games you would like tested?

Quick question-does z64gl only run in 640x480 in fullscreen? Ive edited the config file but when going FS,it goes not higher then 640x480


*UPDATE*

Bomberman 64-this game loads,but when you gain control the fps drops to unplayable rate.Using a HLE audio plugin helps,but then the audio is scratchy.Also using JD3D8 causes lines to appear in the graphics (same as in Ocarina of Time) using z64gl fixes this (same AS Ocarina of Time)

Bomberman 64 the second attack!!-this game is playable! Although same as its predecessor,using JD3D8 causes lines in graphics,using z64gl fixes this.

Bomberman Hero-Unplayable w\both plugins.JD3D8 scrambles graphics,z64gl the graphics are fine but its too slow to be playable.Using HLE audio plugin w\z64gl speeds it up some,but then the audio starts to crackle

Cyber Tiger-Graphics are scrambled with JD3D8,playable w\z64gl

[HatCat]

Originally Posted by mesk14

All Star Baseball 99-this game works fine until the players take the field.Then it crashes with this error.Same for both plugins

YEAH! This is the kind of thing I needed to see.

LLV weird addr means the game is attempting to register a transaction between SP DMEM to the vector register file which is not aligned on the 32-bit allocation barrier.

I'll try to see where in the game that happens so I can debug it exactly; it will be easy to fix now that I know it happens trust me.

Originally Posted by mesk14

All Star Baseball 2000-this game works fine until players take the field,then the speed drops to an unplayable rate.Both plugins are the same,although z64gl is just a sliver faster,but still unplayable.

Weird, Bighead's list says it's playable on Apollo with Azimer's audio and Glide64 HLE...wonder if there is a LLE issue or if it is a core issue; I'll see about testing it.

Originally Posted by mesk14

Ill be testing more games today,ill test as many as I can to help out.Any specific games you would like tested?

Seems you're doing a fair job already.
Basically games that do things different from most games, oddities or unusual code run on the RSP.
But, we'd be hard-pressed to automatically know which games fall under that.

So, leisure play through your favorite games as if you're having fun with a stable version and not like, just beta-testing or something is also cool. Am trying to also support an optimized gaming experience in LLE as well somewhat.

Originally Posted by mesk14

Quick question-does z64gl only run in 640x480 in fullscreen? Ive edited the config file but when going FS,it goes not higher then 640x480

That's because Project64 2.0 isn't reading the z64gl.conf file under $emu\Plugin. You may need to use some other emulator like Mupen64 or Project64 1.6 to get the conf to load so that you can play with whatever resolution.

Originally Posted by mesk14

*UPDATE*

Bomberman 64-this game loads,but when you gain control the fps drops to unplayable rate.Using a HLE audio plugin helps,but then the audio is scratchy.

I played Bomberman 64 on my RSP plugin...thought for sure it was playable; could you upload a saved state for me to download into the emu and test?

Originally Posted by mesk14

Bomberman Hero-Unplayable w\both plugins.JD3D8 scrambles graphics,z64gl the graphics are fine but its too slow to be playable.Using HLE audio plugin w\z64gl speeds it up some,but then the audio starts to crackle

I don't know anything about this game, so a saved state would be of use here for me, too.
Thanks for the help!

[mesk14]

Ok first here are the save states you requested

oops i have to have 5 posts before i can post url's i tried posting link to save under this post but it has to be approved by a mod.PM sent

DR Mario-this game runs fine with JD3D8,very few lines on title screen,but game plays flawlessly.Using z64gl a strange glitch\bug appears when Mario tosses up the pill,it vanishes then reappears in the bottle.

Dual Heroes-this game works well w\z64gl.When using JD3D8 a graphic glitch happens where part of the background remains in the margins.Its hard to describe,you have to see it.Also this happens w\ Bomberman 64 w\JD3D8,maybe coincidental but both games are Hudson.

[mesk14]

pj64_saves.zip - 2.4 Mb

requested save states

[HatCat]

Dr. Mario is playable when I run it on, I think it was Mupen64, with z64gl. Well there was something up with the pills but it turned out to not be a problem on my RSP.

You don't have to list issues with every game, btw, only if they happen to be related to my RSP plugin. If changing the gfx plugin fixes the issue then I guess that's good to know for my/others' future references; it just doesn't help me concentrate on the RSP is all.

I found and fixed your issue with All-Star Baseball '99 btw!
The game should work great in the next release which I will upload when I figure out how to allocate anything else.

[mesk14]

You don't have to list issues with every game, btw, only if they happen to be related to my RSP plugin. If changing the gfx plugin fixes the issue then I guess that's good to know for my/others' future references; it just doesn't help me concentrate on the RSP is all.

Gotcha

Did you get the save states?

[MarathonMan]

Great to see this coming to fruition!