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Simple PRX work in fat but not in slim.

 
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sbrillon1



Joined: 15 Mar 2008
Posts: 7
PostPosted: Sat Mar 15, 2008 4:28 am    Post subject: Simple PRX work in fat but not in slim. Reply with quote
Hi to all!

I have write a simple prx to exit from the game after 1 second, after the game it's started.

The problem it's this: the PRX work in PSP FAT but not in PSP SLIM, why?
I need to do some change to the code for PSP SLIM?

This is the code:
Code:

#include <pspsdk.h>
#include <pspkernel.h>
#include <pspdebug.h>
#include <pspctrl.h>
#include <psppower.h>
#include <psploadexec.h>
#include <pspimpose_driver.h>

PSP_MODULE_INFO("EXIT", 0x1000, 1, 1);
PSP_MAIN_THREAD_ATTR(0);
PSP_MAIN_THREAD_STACK_SIZE_KB(0);

SceCtrlData pad;
unsigned int pad_old;
SceUID main_thid;
SceUID display_thid;
int pausa;

int main()
{
sceKernelDelayThread(3000000);
sceKernelExitGame();
sceKernelDelayThread(1000);   
return 0;
}

int module_start(SceSize args, void *argp)
{
   main_thid = sceKernelCreateThread("Exit_main", main, 6, 0x04000, 0, NULL);
   if(main_thid >= 0) sceKernelStartThread(main_thid, args, argp);
   return 0;
   sceKernelExitDeleteThread(0);
}

int module_stop(SceSize args, void *argp)
{
   return 0;
}



Sorry for my not good english.
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J.F.



Joined: 22 Feb 2004
Posts: 2906
PostPosted: Sat Mar 15, 2008 5:36 am    Post subject: Reply with quote
That's a kernel mode prx. You have to meet specific guidelines to use kernel mode prx's on the Slim. Look at the example code from HEN - you'll find my explanation about what is being done here:
http://forums.ps2dev.org/viewtopic.php?p=58653#58653
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sbrillon1



Joined: 15 Mar 2008
Posts: 7
PostPosted: Sat Mar 15, 2008 6:50 am    Post subject: Reply with quote
The difference it's only in the header?
from this:

Code:
PSP_MODULE_INFO("EXIT", 0x1000, 1, 1);
PSP_MAIN_THREAD_ATTR(0);
PSP_MAIN_THREAD_STACK_SIZE_KB(0);


to this:

Code:
PSP_MODULE_INFO("EXIT", 0x1006, 1, 1);
PSP_MAIN_THREAD_ATTR(0);


Because I try this modification, but don't work.[/code]
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J.F.



Joined: 22 Feb 2004
Posts: 2906
PostPosted: Sat Mar 15, 2008 8:13 am    Post subject: Reply with quote
There's also a BIG difference in the main program's makefile: it builds the app as a prx.

Code:
BUILD_PRX = 1


You cannot load kernel prxs from an app unless the app is also a prx. If you don't build the main app as a prx, any attempts to load/start a kernel prx just fail.
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sbrillon1



Joined: 15 Mar 2008
Posts: 7
PostPosted: Sat Mar 15, 2008 8:16 am    Post subject: Reply with quote
In the make file i have builds the app as a prx:

Code:
TARGET = gameReboot
OBJS = main.o

INCDIR =
CFLAGS = -O2 -G0 -Wall
CXXFLAGS = $(CFLAGS) -fno-exceptions -fno-rtti
ASFLAGS = $(CFLAGS)

BUILD_PRX = 1
USE_KERNEL_LIBC=1
USE_KERNEL_LIBS=1

LIBDIR =
LDFLAGS = -mno-crt0 -nostartfiles
LIBS =


PSPSDK=$(shell psp-config --pspsdk-path)
include $(PSPSDK)/lib/build.mak
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sbrillon1



Joined: 15 Mar 2008
Posts: 7
PostPosted: Wed Mar 19, 2008 6:48 am    Post subject: Reply with quote
Does nobody know how to help me? Please :-)
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J.F.



Joined: 22 Feb 2004
Posts: 2906
PostPosted: Wed Mar 19, 2008 7:40 am    Post subject: Reply with quote
Do both the phat and the slim have the same firmware? You are calling the exit game function as a kernel function, and the kernel function NIDs changed starting with 3.70. At a guess, I'd say the NID is wrong for the slim. I also doubt that D_A put the kernel version of exit in the NID resolver for 3.80/3.90 since only an idiot would call exit from kernel mode on 3.xx software.

Which brings me to the real point - why are you trying to make the game exit from a kernel prx? You should just have the exit in the game itself, not a prx. Is this a plugin that FORCES a game to quit under certain circumstances? If so, it's a completely different ball of wax, and probably the problem is the one mentioned above about the NIDs.
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sbrillon1



Joined: 15 Mar 2008
Posts: 7
PostPosted: Thu Mar 20, 2008 5:01 am    Post subject: Reply with quote
Both the psp have the 3.90 M33.

The PRX that I have inserted was only an example to understand whether to make to go it on slim, the true prx that I would like to do it is this (don't run in slim):

Code:
#include <pspsdk.h>
#include <pspkernel.h>
#include <pspdebug.h>
#include <pspdisplay.h>
#include <pspctrl.h>
#include <psprtc.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <stdarg.h>

#include <kubridge.h>

#include "main.h"


PSP_MODULE_INFO("video", 0x1000, 1, 1);
PSP_MAIN_THREAD_ATTR(PSP_THREAD_ATTR_USER);

SceUID main_thid;

int pspDveMgrCheckVideoOut();
int pspDveMgrSetVideoOut(int, int, int, int, int, int, int);

int threadMain(void)
{
   SceCtrlData pad;
   int cable, i, u, width, height, displaymode;
   u32 *vram;
   u64 tick;
   SceKernelUtilsMt19937Context ctx;

   while (1)
   {
      sceCtrlReadBufferPositive(&pad, 1);

      if (pad.Buttons & PSP_CTRL_SELECT)
      {
            if (pspSdkLoadStartModule("dvemgr.prx", PSP_MEMORY_PARTITION_KERNEL) < 0)
               {
                  sceKernelExitGame();
               }
         
            cable = pspDveMgrCheckVideoOut();
           if (cable == 0)
           {
             while (cable == 0)
             {
                  sceKernelDelayThread(10000);
                     cable = pspDveMgrCheckVideoOut();         
               }
            }

           if (cable != 1 && cable != 2)
           {
               sceKernelExitGame();
            }


           sceKernelDelayThread(5*1000*1000);

           if (cable == 1) // composite, sdtv
           {
                    u = 2;
                    width = 720;
                    height = 503;
                    displaymode = 0x1D1;
            }
           else // 2, component, (and probably d-terminal too)
           {
               u = 0;
               width = 720;
               height = 480;
               displaymode = 0x1D2;
            }

    sceRtcGetCurrentTick(&tick);
   sceKernelUtilsMt19937Init(&ctx, (u32)tick);

   vram = (u32 *)(0x40000000 | (u32)sceGeEdramGetAddr());
   
   pspDveMgrSetVideoOut(u, displaymode, width, height, 1, 15, 0);
   sceDisplaySetFrameBuf(vram, 1024, PSP_DISPLAY_PIXEL_FORMAT_8888, 1);         
         
   while (1)
   {         
      sceDisplayWaitVblankStart();
      sceKernelDelayThread(500000);
   }

    }//End if premi SELECT
    } //End while

    return 0;
}


int module_start(SceSize args, void *argp)
{
   main_thid = sceKernelCreateThread("video_main", threadMain, 6, 0x4000, 0, NULL);
   if(main_thid >= 0) sceKernelStartThread(main_thid, args, argp);
   return 0;
   sceKernelExitDeleteThread(0);
}

int module_stop(SceSize args, void *argp)
{
   return 0;
}


Make:
Code:
TARGET = gamevideo
OBJS = main.o pspDveManager.o

BUILD_PRX=1

CFLAGS = -Os -G0 -Wall -fno-strict-aliasing -fno-builtin-printf
CXXFLAGS = $(CFLAGS) -fno-exceptions -fno-rtti
ASFLAGS = $(CFLAGS)

INCDIR = ../include
LIBDIR = ../lib
LDFLAGS = -mno-crt0 -nostartfiles
LIBS = -lpspkubridge -lpspsysmem_kernel -lpspsystemctrl_kernel -lpsprtc

PSPSDK=$(shell psp-config --pspsdk-path)
include $(PSPSDK)/lib/build_prx.mak
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