Quick Jump Daily Digest

**Gonrai** · 10-22-2006, 10:25 AM

So can anyone explain why I can't rapidly shoot bullets?

**hallo007** · 10-22-2006, 10:28 AM

still not working
still crashing , the hello world i wanne load works
but the eboot loader doesnt:

Code:

#include <pspkernel.h>
#include <pspdebug.h>
#include <string.h>
#include <psploadexec.h>
#include <pspdisplay.h>
#include <pspctrl.h>
#define printf pspDebugScreenPrintf
PSP_MODULE_INFO("Hello World", 0, 1, 1);
PSP_MAIN_THREAD_ATTR (0);//zeg de psp dat het programma kernel acces nodig heeft

/* Exit callback */
int exit_callback(int arg1, int arg2, void *common) {
          sceKernelExitGame();
          return 0;
}

/* Callback thread */
int CallbackThread(SceSize args, void *argp) {
          int cbid;

          cbid = sceKernelCreateCallback("Exit Callback", exit_callback, NULL);
          sceKernelRegisterExitCallback(cbid);

          sceKernelSleepThreadCB();

          return 0;
}

/* Sets up the callback thread and returns its thread id */
int SetupCallbacks(void) {
          int thid = 0;

          thid = sceKernelCreateThread("update_thread", CallbackThread, 0x11, 0xFA0, 0, 0);
          if(thid >= 0) {
                    sceKernelStartThread(thid, 0, 0);
          }

          return thid;
}

int load_Eboot_calculator(void)
{
struct SceKernelLoadExecParam calculator;
char *path_calculator= "ms0:/PSP/GAME/HELLOWORLD/EBOOT.PBP"; /*geheugenplaats voor de naam van de eboot die je wilt laden*/
const u32 Length_of_Eboot = strlen(path_calculator )+1;
pspDebugInstallKprintfHandler (NULL);
pspDebugInstallErrorHandler (NULL);
calculator.args = Length_of_Eboot;
calculator.argp = path_calculator;
calculator.key = NULL;
calculator.size = sizeof(calculator)+Length_of_Eboot;
sceKernelLoadExec(path_calculator,&calculator);
}

int main()
{
pspDebugScreenInit();
SetupCallbacks();    
printf("press cross to load calculator");
SceCtrlData pad;
while(1) {
  sceCtrlReadBufferPositive(&pad, 1);
if(pad.Buttons & PSP_CTRL_CROSS){
load_Eboot_calculator();
}
}
sceKernelSleepThread();
return 0;

}

**Insert_Witty_Name** · 10-22-2006, 10:29 AM

Because you haven't setup a system for mutiple bullets.

See the tutorial at evilmana.com that I mentioned, the principals apply across any language.

http://www.evilmana.com/tutorials/lu...et_bullets.php

**Sethis** · 10-22-2006, 11:46 AM

can anyone help me with my problem? thanks insomniac great tutorials

**SG57** · 10-22-2006, 12:02 PM

Sethis - Your problem is t hat you are making hte thread fall 'asleep' (aka stopping all processes besides HOME button). here ya go.

Code:

//counter - My second PSP Program
/*
	This program was created by ME on October 21 2006
	It is a simple counter Application
	thanks to http://www.psp-programming.com
*/ 

#include <pspkernel.h>
#include <pspdebug.h>
#include <pspdisplay.h>
#include <pspctrl.h>

PSP_MODULE_INFO("Hello World", 0,1,1);

#define poop pspDebugScreenPrintf 

/* Exit callback */

int exit_callback(int arg1, int arg2, void *common) {
	sceKernelExitGame();
	return 0; 
}

/* Callback thread */
int CallbackThread(SceSize args, void *argp) {
	int cbid;

	cbid = sceKernelCreateCallback("Exit Callback", exit_callback, NULL);

	sceKernelSleepThreadCB();

	return 0;
}

/*Sets up the callback thread and returns its thread id */ 
int SetupCallbacks(void) {
	int thid = 0;

	thid = sceKernelCreateThread("update_thread", CallbackThread, 0x11, 0xFA0,0,0);

	if(thid >=0) {
		sceKernelStartThread(thid, 0, 0);

	}

	return thid; 
}


int main()
{

//to end a line a semi colon is needed, not sure what these two blocks of code do...

pspDebugScreenInit();
SetupCallbacks();


//this prinnts Hello World to the screen

int counter = 0;
int i = 0;
SceCtrlData pad; 

poop ("Press [X] to start the Timer");

//this is to make the printf appear, becuase it will just erase without it

// "while" represents a loop
// the if = if statement in english. 
while(1) {
         sceCtrlReadBufferPositive(&pad, 1);
//break = break the loop
         if(pad.Buttons & PSP_CTRL_CROSS) {
         break;
          }
}

while(1) {
          sceCtrlReadBufferPositive(&pad, 1);
          if(pad.Buttons & PSP_CTRL_CIRCLE) {
                    break;
          }

          pspDebugScreenClear();

          poop("Press [O] To Stop the Timer\n");
          poop("Counter: %i", counter);
        
          counter++

          for(i=0; i<5; i++) {
              sceDisplayWaitVblankStart();
          }
}

pspDebugScreenClear();

poop("Counter Finished.");
poop("Final Count: %i", counter);
poop("\n\n\tPress L Trigger to exit.");

while(1) {
          sceCtrlReadBufferPositive(&pad, 1);
          if(pad.Buttons & PSP_CTRL_LTRIGGER) {
                    break;
          }
}

sceKernelExitGame();
return 0; 
}

**Insert_Witty_Name** · 10-22-2006, 12:10 PM

The line:

Code:

counter++

Also needs a semi-colon at the end of it:

Code:

counter++;

**Glynnder** · 10-22-2006, 12:29 PM

any help with my issue?

**Access_Denied** · 10-22-2006, 01:14 PM

OK, I'm trying to compile a simple EBOOT runner, that will run a Hello World EBOOT. It compiles, but when I run it and press X, it does nothing. Anyone know what's wrong?

Spoiler for Code:

Spoiler for Makefile:

Spoiler for Errors:

**SG57** · 10-22-2006, 01:31 PM

Code:

#include <pspkernel.h>
#include <pspdebug.h>
#include <string.h>
#include <psploadexec.h>
#include <pspdisplay.h>
#include <pspctrl.h>

#define printf pspDebugScreenPrintf

PSP_MODULE_INFO("Eboot Runner", 0x1000, 1, 1);

int exit_callback(int arg1, int arg2, void *common) {
sceKernelExitGame();
return 0;
}

int CallbackThread(SceSize args, void *argp) {
int cbid;

cbid = sceKernelCreateCallback(" Exit Callback", exit_callback, NULL);
sceKernelRegisterExitCall back(cbid);

sceKernelSleepThreadCB();

return 0;
}

int SetupCallbacks(void) {
int thid = 0;

thid = sceKernelCreateThread("up date_thread", CallbackThread, 0x11, 0xFA0, 0, 0);
if(thid >= 0) {
sceKernelStartThread(thid , 0, 0);
}

return thid;
}

int load_eboot(void) {
struct SceKernelLoadExecParam eboot;
char *ebootpath= "ms0:/PSP/GAME/Hello/EBOOT.PBP";
const u32 Length_of_Eboot = strlen(ebootpath )+1;
pspDebugInstallKprintfHan dler (NULL);
pspDebugInstallErrorHandl er (NULL);
eboot.args = Length_of_Eboot;
eboot.argp = ebootpath;
eboot.key = NULL;
eboot.size = sizeof(eboot)+Length_of_E boot;
sceKernelLoadExec(ebootpa th,&eboot);
}

int main() {
pspDebugScreenInit();
SetupCallbacks();
SceCtrlData pad;
printf("Press X to launch EBOOT");
while(1) {
sceCtrlReadBufferPositive (&pad, 1);
if(pad.Buttons & PSP_CTRL_CROSS){
load_eboot();
}
}
sceKernelSleepThread();
return 0;
}

Try that ;)

**Insert_Witty_Name** · 10-22-2006, 01:35 PM

I seem to remember something about it needing to be a PRX.

So code a kernel mode EBOOT to load a kernel mode PRX, from the PRX unload the boot EBOOT, then load the desired EBOOT.

I could be mistaken, or thinking of something else.

**F.T.P.** · 10-22-2006, 02:45 PM

Gah...

Whats the code to make the psp wait for a set amount of time? I know I just saw it in here not to long ago but I cant seem to find it now. I've been using rediculicly long for loops as my wait function, but depending on what else I have it doing the for loop could be anywhere from 5000 to 80million to get it to wait just a few milliseconds...

Something like sceKernelWait(time)?

**Access_Denied** · 10-22-2006, 02:49 PM

SG57, it still didn't work. I added the while loop, and it gave me the same warning as when I compiled without the while loop.

Code:

$ make
psp-gcc -I. -I/usr/local/pspdev/psp/sdk/include -O2 -G0 -Wall   -c -o main.o mai
n.c
main.c: In function 'load_eboot':
main.c:45: warning: control reaches end of non-void function
psp-gcc -I. -I/usr/local/pspdev/psp/sdk/include -O2 -G0 -Wall  -L. -L/usr/local/
pspdev/psp/sdk/lib   main.o  -lpspdebug -lpspdisplay -lpspge -lpspctrl -lpspsdk
-lc -lpspnet -lpspnet_inet -lpspnet_apctl -lpspnet_resolver -lpsputility -lpspus
er -lpspkernel -o runner.elf
psp-fixup-imports runner.elf
psp-strip runner.elf -o runner_strip.elf
pack-pbp EBOOT.PBP PARAM.SFO NULL  \
                NULL NULL NULL  \
                NULL  runner_strip.elf NULL
rm -f runner_strip.elf

**SG57** · 10-22-2006, 03:00 PM

Propel - read the tutorial on howto launch an eboot, as well as make your main function return a value...

AKA, just add

return 0;

to the very bottom of your code, but still in the main functions brackets.

**Twin891** · 10-22-2006, 03:01 PM

Zitat von F.T.P.

Gah...

Whats the code to make the psp wait for a set amount of time? I know I just saw it in here not to long ago but I cant seem to find it now. I've been using rediculicly long for loops as my wait function, but depending on what else I have it doing the for loop could be anywhere from 5000 to 80million to get it to wait just a few milliseconds...

Something like sceKernelWait(time)?

sceKernelDelayThread(1000 000);

will delay the thread in micro seconds, this will delay it for 1 second.

**yaustar** · 10-22-2006, 03:02 PM

Zitat von Propel

SG57, it still didn't work. I added the while loop, and it gave me the same warning as when I compiled without the while loop.

Code:

$ make
psp-gcc -I. -I/usr/local/pspdev/psp/sdk/include -O2 -G0 -Wall   -c -o main.o mai
n.c
main.c: In function 'load_eboot':
main.c:45: warning: control reaches end of non-void function
psp-gcc -I. -I/usr/local/pspdev/psp/sdk/include -O2 -G0 -Wall  -L. -L/usr/local/
pspdev/psp/sdk/lib   main.o  -lpspdebug -lpspdisplay -lpspge -lpspctrl -lpspsdk
-lc -lpspnet -lpspnet_inet -lpspnet_apctl -lpspnet_resolver -lpsputility -lpspus
er -lpspkernel -o runner.elf
psp-fixup-imports runner.elf
psp-strip runner.elf -o runner_strip.elf
pack-pbp EBOOT.PBP PARAM.SFO NULL  \
                NULL NULL NULL  \
                NULL  runner_strip.elf NULL
rm -f runner_strip.elf

In this function: int load_eboot(void) , you are not returning an int.

**Waterbottle** · 10-22-2006, 03:03 PM

Zitat von F.T.P.

Gah...

Whats the code to make the psp wait for a set amount of time? I know I just saw it in here not to long ago but I cant seem to find it now. I've been using rediculicly long for loops as my wait function, but depending on what else I have it doing the for loop could be anywhere from 5000 to 80million to get it to wait just a few milliseconds...

Something like sceKernelWait(time)?

sceDisplayWaitVBlank(); delays it for 1/60 second

Or you could use
sceKernelDelayThread(mirc oseconds)

**F.T.P.** · 10-22-2006, 03:06 PM

Hey, thanks alot you two! ;)

**Access_Denied** · 10-22-2006, 03:10 PM

Zitat von SG57

Propel - read the tutorial on howto launch an eboot, as well as make your main function return a value...

AKA, just add

return 0;

to the very bottom of your code, but still in the main functions brackets.

Man, I'm too tired. How could I forget that.
-= Double Post =-
I compiled it with no errors, but it still doesn't work. WTF is wrong?!?!?

**ZeroMega** · 10-22-2006, 03:38 PM

n00b Question time

So the 2.8 TIFF games are created with C++?

**Access_Denied** · 10-22-2006, 03:43 PM

Zitat von ZeroMega

n00b Question time

So the 2.8 TIFF games are created with C++?

Yeah, they're created with C. But if you are going to start developing, don't start with TIFF games, start with regular C coding and work your way up to TIFF.

**ZeroMega** · 10-22-2006, 03:46 PM

Zitat von Propel

Yeah, they're created with C. But if you are going to start developing, don't start with TIFF games, start with regular C coding and work your way up to TIFF.

Ah I see, thanks a lot

So what files do the C coding end up to be, and can you test them on your computer before they go on the PSP?

**Access_Denied** · 10-22-2006, 04:01 PM

Zitat von ZeroMega

Ah I see, thanks a lot

So what files do the C coding end up to be, and can you test them on your computer before they go on the PSP?

When you compile them, they come out as EBOOTS, for regular homebrew, or sometimes PRXs, or a .BIN file for TIFF homebrew. And you can only test them if you have a mac, or a mac emulator. Then you can use the program by xart.

**ZeroMega** · 10-22-2006, 04:25 PM

Zitat von Propel

When you compile them, they come out as EBOOTS, for regular homebrew, or sometimes PRXs, or a .BIN file for TIFF homebrew. And you can only test them if you have a mac, or a mac emulator. Then you can use the program by xart.

Oh no, I don't have a Mac. >_<;

Thanks though

**Access_Denied** · 10-22-2006, 04:27 PM

Zitat von ZeroMega

Oh no, I don't have a Mac. >_<;

Thanks though

Neither do I, that's why I'm setting up a Mac OS 8 Emulator. I manged to get Mac OS X on my laptop, but it's not booting right.

**Gonrai** · 10-22-2006, 07:38 PM

Okay I used a lib that Grimfate made for me on AIM and I tried to match it for my game but it still doesnt shoot:

Spoiler for Lib:

Spoiler for Main.Cpp:

**hallo007** · 10-23-2006, 07:12 AM

Zitat von hallo007

still not working
still crashing , the hello world i wanne load works
but the eboot loader doesnt:

Code:

#include <pspkernel.h>
#include <pspdebug.h>
#include <string.h>
#include <psploadexec.h>
#include <pspdisplay.h>
#include <pspctrl.h>
#define printf pspDebugScreenPrintf
PSP_MODULE_INFO("Hello World", 0, 1, 1);
PSP_MAIN_THREAD_ATTR (0);//zeg de psp dat het programma kernel acces nodig heeft

/* Exit callback */
int exit_callback(int arg1, int arg2, void *common) {
          sceKernelExitGame();
          return 0;
}

/* Callback thread */
int CallbackThread(SceSize args, void *argp) {
          int cbid;

          cbid = sceKernelCreateCallback("Exit Callback", exit_callback, NULL);
          sceKernelRegisterExitCallback(cbid);

          sceKernelSleepThreadCB();

          return 0;
}

/* Sets up the callback thread and returns its thread id */
int SetupCallbacks(void) {
          int thid = 0;

          thid = sceKernelCreateThread("update_thread", CallbackThread, 0x11, 0xFA0, 0, 0);
          if(thid >= 0) {
                    sceKernelStartThread(thid, 0, 0);
          }

          return thid;
}

int load_Eboot_calculator(void)
{
struct SceKernelLoadExecParam calculator;
char *path_calculator= "ms0:/PSP/GAME/HELLOWORLD/EBOOT.PBP"; /*geheugenplaats voor de naam van de eboot die je wilt laden*/
const u32 Length_of_Eboot = strlen(path_calculator )+1;
pspDebugInstallKprintfHandler (NULL);
pspDebugInstallErrorHandler (NULL);
calculator.args = Length_of_Eboot;
calculator.argp = path_calculator;
calculator.key = NULL;
calculator.size = sizeof(calculator)+Length_of_Eboot;
sceKernelLoadExec(path_calculator,&calculator);
}

int main()
{
pspDebugScreenInit();
SetupCallbacks();    
printf("press cross to load calculator");
SceCtrlData pad;
while(1) {
  sceCtrlReadBufferPositive(&pad, 1);
if(pad.Buttons & PSP_CTRL_CROSS){
load_Eboot_calculator();
}
}
sceKernelSleepThread();
return 0;

}

still not fixed

**jait** · 10-23-2006, 01:43 PM

Here's a quick n' dirty one. In sceKernelCreateThread, is the stack size variable in KB or B or what?

Thanks.

**SG57** · 10-23-2006, 05:00 PM

jait - bytes. (80% sure)

**Sethis** · 10-23-2006, 05:29 PM

I was trying to write a program in which it displays hello world, and then loops until i press cross [X]. then i came to 1 piece of code in which i did not exactly understand it is this one

Code:

 

SetupCallbacks ();

can anyone explain to me what this means? thanks

edit - also what it does, thanks

**Access_Denied** · 10-23-2006, 05:39 PM

Zitat von Sethis

I was trying to write a program in which it displays hello world, and then loops until i press cross [X]. then i came to 1 piece of code in which i did not exactly understand it is this one

Code:

 

SetupCallbacks ();

can anyone explain to me what this means? thanks

edit - also what it does, thanks

That's most likely referring to the exit callbacks. It's a chunk of code about 10 - 12 lines long, that allows your PSP's 'HOME' button to work when running the game.

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