forums.ps2dev.org

jimparis · Joined: 10 Jun 2005 Posts: 1179 Location: Boston

Just a note:

The pgp-gcc toolchain (20050619) generates seb/seh in the output, due to this portion of gcc-4.0.0.patch:

Guest · Posted: Tue Jun 21, 2005 11:17 am Post subject:

Did you look at how easy it might be to add them to PSPE ?

jboldiga · Joined: 20 Jun 2005 Posts: 27

Is there source available for PSPE?

sq377 · Joined: 11 Apr 2005 Posts: 87

if source was available, someone would have ported it to linux by now.

Guest · Posted: Tue Jun 21, 2005 11:38 am Post subject:

There is no source ? Its Windows only ? Screw that.

Rinco mentioned "gxemul" in another thread and is using it on Mac. It comes with source. I downloaded it last night to eventually start using. Undoubtedly it works on many platforms.

Is it usable for your purposes ? Here is the reference thread....

http://forums.ps2dev.org/viewtopic.php?t=2147&highlight=gxemul

EDIT: Found at this website: http://gavare.se/gxemul/

jboldiga · Joined: 20 Jun 2005 Posts: 27

thanks gorim ;)

jimparis · Joined: 10 Jun 2005 Posts: 1179 Location: Boston

jboldiga · Joined: 20 Jun 2005 Posts: 27

its just too timely to keep testing on psp, especially with no debug support...kinda like throwing a dart at a dartboard hoping things will just workout.

MrHTFord · Joined: 10 Feb 2004 Posts: 35 Location: England

If that's how you think of programming then you'd be better off taking up professional darts instead.

jason · Joined: 14 Apr 2005 Posts: 28

http://gavare.se/gxemul/screenshots/20050624-playstation-portable.png
http://gavare.se/gxemul/diary.html

Have Fun.

jboldiga · Joined: 20 Jun 2005 Posts: 27

Excellent! :)

PacManFan · Joined: 25 Jun 2005 Posts: 66

Well, I understand that the PSPE will crash if it encounters an seb/seh instruction. I've taken out the define in the gcc 4.0.0 patch to generate the seb/seh, and I'm rebuilding the tool chain now. I'll let everyone know if it works to produce elfs that run flawlessly in the PSPE.

-PMF

Warren · Joined: 24 Jan 2004 Posts: 173 Location: San Diego, CA

OK we need a sticky or something about PSPE.
PSPE DOES NOT EMULATE A PSP. It emulates a MIPS r4000 CPU which IS NOT the same thing.

This is akin to taking a PC emulator that only emulates an i386 and trying to run i686 code on it, some simple things will work but most anything that's meant for the real system will crash it.

In short, stop hacking apart the toolchain to try and get the POS PSPE to work with your code, if you really want an emulator for the PSP get some people together, grab gxemul sourcecode and properly implement the main Allegrex PSP CPU core based on the binutils patches in the toolchain.

DO NOT POST ANYMORE ABOUT PSPE NOT WORKING. CODE ON A REAL PSP OR MAKE A PROPER ALLEGREX EMU.

PacManFan · Joined: 25 Jun 2005 Posts: 66

The tool chain is still building at this point, but I see no reason why I shouldn't disable the SEB/SEH instructions. My perspective is that if I can get compiled code to run on the PSPE, it WILL run on the PSP. Once I've gone through my lengthy compile/test/debug cycle, I'll rebuild my toolchain and put the proper one back in place.

To take from your example, 386 code will run on a 686, but not the other way around. If I can compile/test/debug on the PSPE, this will save a vast amount of time, Then I can switch compilers and turn on optimizations.

To each thier own I say.

-PMF

ector · Joined: 12 May 2005 Posts: 195

If you really want to, but please don't spread your broken compiler.

This may be the final drop that causes me to polish up and release my emulator, it's slower than PSPE but has tons more debugging capabilities and supports more instructions, but right now it's a little too iffy to release.

Agoln · Joined: 08 Jun 2005 Posts: 326 Location: Fort Wayne, IN

Savoury SnaX · Joined: 22 Jun 2005 Posts: 3

How about an svn repository for the source then? More hands would make the project stabler (less iffy?) faster. And a source version would be much more useful, than a windows/linux or mac only binary.

PacManFan · Joined: 25 Jun 2005 Posts: 66

ector,

By all means, release your EMU soon. The only reason i'm hacking the toolchain is to have a faster dev cycle. If you release your source, we can all work on it and get something good and stable for the community fast.

BTW, my tool chain is almost done building, I'll report my results soon.

-PMF

ector · Joined: 12 May 2005 Posts: 195

Yeah I'm thinking about a source release.

The sweet debugger GUI is all Win32 but the core is reasonably abstracted out and shouldn't be a very difficult port for anyone so inclined. I'd expect it to work just great on Wine though as I'm not using anything strange.

I need to figure out how to compile ELFIO as a dynamic library first though, as I'm not sure yet I want to release under LGPL.

PacManFan · Joined: 25 Jun 2005 Posts: 66

OK it's compiled, I recompiled my pspquake source under it , and it's now running (somewhat) under the PSPE. When I say somewhat, I mean more than before. Back to debugging for me, hopefully I'll have quake fully working in a day or so..

-PMF out..

mrbrown · Joined: 17 Jan 2004 Posts: 1536

Arwin · Joined: 12 Jul 2005 Posts: 426

Is this project dead?

Warren · Joined: 24 Jan 2004 Posts: 173 Location: San Diego, CA

We can only hope so.