C/C++ Programming Help Thread

[slicer4ever]

here beat bob is a way to make something jump i can't read ur code very well so screw it this well work:

Spoiler for code:

float gravity=.2;
float y=250;
float upspeed=0;
while(1){
if(pad.Buttons & PSP_CTRL_CROSS){
upspeed=5.0f;
}
y-=upspeed;
if(y<250){
upspeed-=gravity;
}
if(y>=250){
y=250;
upspeed=0;
}

there that should work i'll check it over but i wrote it right here so it's not tested

[SG57]

I can't find it, please give me a link.

Btw: how do I create md2 files?

IT isn't the best, but you should be able to pick out what's needed...

http://dl.qj.net/3D-Game-Development...9418/catid/202

[sony psp player]

Your code doesn't compile:

[email protected] ~/3d
$ make
psp-gcc -I. -I/usr/local/pspdev/psp/sdk/include -O2 -G0 -Wall -I/usr/local/pspde
v/psp/sdk/../include -fsingle-precision-constant -g -Wall -O2 -D_PSP_FW_VERSION
=150 -L. -L/usr/local/pspdev/psp/sdk/lib -DMODULE_NAME="SDalex" psp-setup.c ma
in.o md2.o texture.o mp3player.o glPrint.o -lglut -lGLU -lGL -lm -lc -lpsputilit
y -lpspdebug -lpspge -lmad -lpspaudiolib -lpspaudio -lpspdisplay -lpspctrl -lpsp
sdk -lpspvfpu -lpsplibc -lpspuser -lpspkernel -lpsprtc -lpsppower -lstdc++ -lpsp
debug -lpspdisplay -lpspge -lpspctrl -lpspsdk -lc -lpspnet -lpspnet_inet -lpspne
t_apctl -lpspnet_resolver -lpsputility -lpspuser -lpspkernel -o 3DGDS.elf
glPrint.o:/home/Christian/3d/glPrint.cpp:154: undefined reference to `glTranslat
ed'
glPrint.o:/home/Christian/3d/glPrint.cpp:156: undefined reference to `glListBase
'
glPrint.o:/home/Christian/3d/glPrint.cpp:158: undefined reference to `glCallList
s'
glPrint.o:/home/Christian/3d/glPrint.cpp:173: undefined reference to `glTranslat
ed'
glPrint.o:/home/Christian/3d/glPrint.cpp:175: undefined reference to `glListBase
'
glPrint.o:/home/Christian/3d/glPrint.cpp:177: undefined reference to `glCallList
s'
glPrint.o:/home/Christian/3d/glPrint.cpp:130: undefined reference to `glDeleteLi
sts'
glPrint.o:/home/Christian/3d/glPrint.cpp:105: undefined reference to `glGenLists
'
glPrint.o:/home/Christian/3d/glPrint.cpp:112: undefined reference to `glNewList'

glPrint.o:/home/Christian/3d/glPrint.cpp:123: undefined reference to `glTranslat
ed'
glPrint.o:/home/Christian/3d/glPrint.cpp:124: undefined reference to `glEndList'

glPrint.o:/home/Christian/3d/glPrint.cpp:112: undefined reference to `glNewList'

collect2: ld returned 1 exit status
make: *** [3DGDS.elf] Error 1

[coolguy5678]

That's because you haven't got pspgl (is that the name?) installed.

[sony psp player]

Thanks, I totally forgot it.
-= Double Post =-
I've tried it with pspgl and there is the same error.

[JaSo PsP]

LIBS= -lpspgu :rtfm: <--- Edited, wasn't supposed to be -lpspgl ^^

[sony psp player]

New error:

[email protected] ~/3d
$ make
psp-gcc -I. -I/usr/local/pspdev/psp/sdk/include -O2 -G0 -Wall -I/usr/local/pspde
v/psp/sdk/../include -fsingle-precision-constant -g -Wall -O2 -D_PSP_FW_VERSION
=150 -L. -L/usr/local/pspdev/psp/sdk/lib -DMODULE_NAME="SDalex" psp-setup.c ma
in.o md2.o texture.o mp3player.o glPrint.o -lpspgl -lglut -lGLU -lGL -lm -lc -lp
sputility -lpspdebug -lpspge -lmad -lpspaudiolib -lpspaudio -lpspdisplay -lpspct
rl -lpspsdk -lpspvfpu -lpsplibc -lpspuser -lpspkernel -lpsprtc -lpsppower -lstdc
++ -lpspdebug -lpspdisplay -lpspge -lpspctrl -lpspsdk -lc -lpspnet -lpspnet_inet
-lpspnet_apctl -lpspnet_resolver -lpsputility -lpspuser -lpspkernel -o 3DGDS.el
f
/usr/local/pspdev/lib/gcc/psp/4.1.0/../../../../psp/bin/ld: cannot find -lpspgl
collect2: ld returned 1 exit status
make: *** [3DGDS.elf] Error 1

[SG57]

No, you have PSPGL, just not the latest. Download the ported nehe tutorials 11-20 and it'll come with a PSPGL supporting display lists.

Walaa...

[JaSo PsP]

No, you have PSPGL, just not the latest. Download the ported nehe tutorials 11-20 and it'll come with a PSPGL supporting display lists.

Walaa...

*Voila

[sony psp player]

I didn't manage to get it working. If there is anyone who can give me a small tutorial and a few examples, this would be great.

^^^^Please don't flame me because of this post.^^^^

[hallo007]

oke , now I was testing how to check the free memory in size , i made a function that opens new memory locations untill it fails and then it checks how many and how big they are , but is it safe to do it that way?

[Archaemic]

That's a terrible way to do it.
http://psp.jim.sh/pspsdk-doc/pspsysmem__kernel_8h.html
Read up.

[Auraomega]

Say I want to replace vshmain.prx in flash, how would I go about not giving myself a semi-brick. When I replace it it gives me the black screen, as expected.

I've tried making my vshmain.prx load vshmain_real.prx, but I always get an error, if I use pspSdkLoadStartModule, and using sceKernelLoadModule and sceKernelStartModule.

I've spent a couple of hours looking around, but found no definative answers, although there was a post on ps2dev.org that seemed helpful, but still didn't solve my problem...

Well anyway, I'm just wondering what needs to be done to get it to load, and if theres any source code, tutorials, etc that I can look at to see where I'm going wrong?

Thanks.
-Aura

[hallo007]

That's a terrible way to do it.
http://psp.jim.sh/pspsdk-doc/pspsysmem__kernel_8h.html
Read up.

oke i got that , but what partition id do i need to fill in?


SceSize sceKernelPartitionTotalFr eeMemSize(int pid);

and what are partition id's?

[Archaemic]

You want partition 2. That's the user partition.
http://wiki.ps2dev.org/psp:memory_map

[hallo007]

never saw that sites before , interesting , big thnx
-= Double Post =-
it just crashes

SceSize faGetFreeMem()
{
     SceSize mem;
     mem = sceKernelPartitionTotalFreeMemSize( 2 ); 
     return mem;
}

[Mr305]

aknkgqtxemkgqt. oops

[hallo007]

never saw that sites before , interesting , big thnx
-= Double Post =-
it just crashes

SceSize faGetFreeMem()
{
     SceSize mem;
     mem = sceKernelPartitionTotalFreeMemSize( 2 ); 
     return mem;
}

mayby it has to do with something else , because sceKernelFindModuleByName () works either

[slicer4ever]

could some1 give me an example of ad-hoc that works the guide one on this site won't work nor does the ir example in the sdk well work on my 1.5 psp's
-= Double Post =-
nvm i got it to work finally

[Archaemic]

never saw that sites before , interesting , big thnx
-= Double Post =-
it just crashes

SceSize faGetFreeMem()
{
     SceSize mem;
     mem = sceKernelPartitionTotalFreeMemSize( 2 ); 
     return mem;
}

Wow, um, all that variable does is waste stack space.

Just call sceKernelPartitionTotalFr eeMemSize(2); when you need to find free RAM.

Also, I just did some digging, so I don't know if this is entirely the right function. Are you sure you're in kernel mode?

[slicer4ever]

how do i get the psp's nickname?
-= Double Post =-
also i didn't know that with the ac pluged in you can take out the battery and the psp well keep going

[SG57]

That's why during updates it doesn't tell you touch either, as touching one or the other makes just one more flaw for a brick.

To get the PSPs nickname (you should've searched...)

char nameBuffer[50]; 
sceUtilityGetSystemParamString(PSP_SYSTEMPARAM_ID_STRING_NICKNAME, nameBuffer, 50); 
printf(nameBuffer);

[slicer4ever]

thanks sg

[hallo007]

Wow, um, all that variable does is waste stack space.

Just call sceKernelPartitionTotalFr eeMemSize(2); when you need to find free RAM.

Also, I just did some digging, so I don't know if this is entirely the right function. Are you sure you're in kernel mode?

yes i am in kernel (0x1000)

[slicer4ever]

when using oslcos/oslsin does it take radians or degrees?

edit: it looks like it takes degrees as it takes an int not a float so nvm i guess unless i'm wrong

[Auraomega]

I was just wondering if/how I could get PSPLink to load my PSPLock, becaus every time I try to execute it I get error 0x80020001.

I've tried using me vshmain.prx, and me vshmain.prx @vsh, but neither work correctly (although they both load, they just crash during the running).

I don't really have very good documentation on the commands, so any help/proper documentation would be great.

If you don't understand what I mean, the link to my thread is in my sig.

Thanks in advance for any help, would save lots of flashing tests

-Aura

[Insert_Witty_Name]

Use the OE version of psplink (under the 3.xx kernel).

Boot up psplink and run the loadvsh.sh script.

Run your PRX from there.

[Auraomega]

I don't have loadvsh.sh... where can I find this?

-Aura

Heh... ignore that, I've found it...

[wrcsti]

hey im just trying to learn C and have been going through a hello world app but my computer (vista) will not compile my makefile and main.c into a eboot when i enter in cygwin comand "make" and if i type in ./makefile it shows 12 lines oftext showing that the command not found. i downloaded the pspdev from that drop i like its hot thread and put it in cygwin/usr/local. i dont know why it wont compile my main.c and makefile. i guess ill just try some difffernet ones and see if it is my computer

[Archaemic]

Do you have the toolchain installed?