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I'm facin some problems because of the malloc / free functions that ogg vorbis uses. I had some crashes at malloc_lock function I guess because malloc wasn't written to be shared across the two processors. The libc malloc uses OS services and so is only available on the SC. You'll have to write you...

methos3 wrote:So... Do the PS2 have a kernel always running too? Isn't the game an OS on the PS2 and some other consoles?

The PS2 (and the wii interestingly) has no OS on the main CPU but has an modular embedded OS with a bundle of device drivers running on a secondary CPU. The IOP also doubles as the PS1 CPU.

You have to manage with 8 channels. The PSP (at least 1000 and 2000) has only 1 hardware stereo channel. The mixing of the 8 "channels" occurs in a kernel thread. If you mix yourself use sceAudioSRCOutputBlocking for a nice performance boost due to the skipping of the software mixer and g...

How about this; int i = 1; __asm__ volatile ( ".set push\n" ".set noreorder\n" "vcmp.s GT, S000, S200\n" "bvtl 0, 1\n" "addiu %0, $0, 0\n" ".set pop\n" :"=r"(i)); if(!i) retu...

GCC complains about undefined label. I thought it was it cannot access the label, but the fact is that GCC removes everything after a return sentence. Speed is critical here, so I don't want to use a variable and a branch if possible. Just use a variable. Higher compiler optimization levels will pr...

bbtgp32465 wrote:
i was wondering what the purpose of these 2 pokes where for?

Code: Select all

pokew 0x88196474 0x46c06841
pokew 0x8818df48 0x46c046c0

thanks

They patch a command in the libertas firmware to allow reading of the full ARM address space.

ab5000 wrote:I think they used an exploit. Look at the Entry Point - it's 0x000000AC!!!
What do you think about it?

That's probably an offset from the module base. Remember, it's relocatable.

Criptych wrote:I'll give it a shot. Is this register corruption the only reason not to use ulv.q/usv.q?

I believe so.

Criptych wrote: From what I read in the diggins they aren't significantly slower than the aligned version; how do they compare to lv.s/sv.s * 4?

I don't know. I haven't done much with the VFPU.

Way over my head, I've only ever used assembly for minimal VFPU access, and I'm still learning most of the opcodes. :P How do I add a "clobber constraint"? Is it an extra argument/modifier to the instruction? A clobber constraint is an extra parameter added to the inline asm block that te...

There was an issue with ulv.q corrupting an FPU register, but I think it was fixed after the 1000. You could probably account for it by adding a clobber constraint. (something like $fp0 with C000, $fp1 with C100 I think)

Did you test this on a psp-1000 by chance?

Look at the instruction in the delay slot.

tanweeho wrote:After this exercise, I have more or less the ported source code. I'd love to share it too. But before that, I would like to seek CrazyC's permission or opinion before I do so.
(CrazyC, I have PMed you.)

Go ahead.

Yes, there is. The "-Dmain" flag is all over in the makefile. The simplest way to fix this is to remove that parameter from the Makefile in the gui directory. Then the undefined reference error should go away. Is this normal? I interpret the error above as what you meant by "failed l...

When you compile it does the gcc command line contain -Dmain=SDL_main?

main is in src/gui/sdlmain.cpp. Make sure it's getting compiled.

I suspect that english is not your first language as your question doesn't make much sense. Try being more specific about what you want to do.

Turbo C in DOSBox. That's about it.

ab5000 wrote:yes, you can hook a user mode function, but not in that way. search "easy hook example user kernel" in this forum.

If he did want to override sceGuFinish, he could just change the order by linking his function before libgu, but that wouldn't enable him to do what he said he wanted.

You can't because sceGuFinish is not a kernel function. It only places a finish command in the display list. Try hooking sceGeListUpdateStallAddr instead.

EDIT2: The cause of this crash is definately FAT12 filesystems. All floppy disks, and harddisk images that are 16MB or less are always FAT12... creating a 17MB hardfile, which is the lowest possible for FAT16, fixed the crash. But now I get disk access errors (as if it's write protected) with the m...

DanielC wrote:Any new progress CrazyC?

No. My source tree is a mess and before I can do any more, I have to clean it up.

DanielC wrote:SYSOPT INPUTSWITCH

This already exists, "INPUTMAP analog mouse" and "INPUTMAP analog joystick".

It is on standard DOSBox. Originally CrazyC implemented it as mincycles and maxcycles, but from memory i think he changed cyclesup/cyclesdown to do the same thing as min/max cycles - because the DOSBox cycles changing hotkeys don't exist on the PSP port I suppose... i'm just guessing there, I only ...

This is also my conclusion. I still put cycles=max before all the psp-specific options crazyc implemented anyway, doesn't do any harm for me =P cycles=sync attempts to adjust cycles so the emulated vsync and the real vsync occur simultaneously. maxcycles and mincycles when cycles=sync set the upper...

The problem is probably that configure is calling the mingw sdl-config which is bringing in the mingw headers. You probably haven't installed sdl for psp (I removed all dependencies on sdl but configure still wants it). I actually did most of my development on a windows x64 machine but with msys not...

psp-g++: fsingle-precision-constant: No such file or directory fsingle-precision-constant is a parameter. Put a dash in front of it when you run configure. cc1plus: error: unrecognized command line option "-mno-cygwin" -mno-cygwin shouldn't be there. Since ...

./configure "CXXFLAGS='-I/usr/local/pspdev/psp/sdk/include -Ic:/pspdev/psp/include/SDL -fomit-frame-pointer -Os -frename-registers -finline -finline-limit=200 -msingle-float -ffast-math fsingle-precision-constant -G0 -I/c/pspdev/psp/include/SDL' LDFLAGS='-lc -lpspuser -lpspkernel -L/us...

Dariusc123456 wrote:Well thats true. Ill do a search. Maybe ill find one written in C.

No. Raw sockets have to be implemented in the IP stack within the PSP kernel. Either support is there and we don't know how to use it or it's not and a kernel patch or hook will be required. A java or C library will not help.

So the ME actually, controls the VME... does that mean it might be possible to use the VME? Has anyone been able to access that piece of hardware for use? I know Sony can do as they wish with the VME, but has anyone been able to do anything with it in terms of homebrew? AFAIK, no one knows what the...

Murdock wrote:BUT: REAL Networking is not what we'd need with Dosbox, is it? The only thing we'd need is some "virtual network"

Exactly, if people are looking for Internet access they're looking in the wrong place. Dosbox doesn't support it and even if it did there aren't any worthwhile apps.