C/C++ Programming Help Thread

[wrcsti]

it also wont install the toolchain. but i do have tolchain under cygwin/home/(me)/psptoolchain but whenever i try to start psptoolchain.sh it gives an error again. i guess ill have to reinstall cygwin

[Mr305]

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

Follow the instruction CLEARLY... It SURE will work.. Tested by many. incl me.

Follow Cygwin tutorial at psp-programming.com Then my instructions,

I have Updated. the tutorial check it

[wrcsti]

Follow the instruction CLEARLY... It SURE will work.. Tested by many. incl me.

Follow Cygwin tutorial at psp-programming.com Then my instructions,

thats where i went to get it done. i guess i didnt clik the right things then.
anyhow heres a screenshot of what its doing (note name edited off so to keep it unknown)

[Archaemic]

Okay...install autoconf. It's in the cygwin setup.

[wrcsti]

yeah im reinstalling all of this, many thanks to all of you!!!! its the reason i asked here and not at maxconsole or any other forums, id need a radioactive flamesuit in there for asking anything.

EDIT: ok its up and runing now. my hello world works flawlessly, it says in red in center of screen
Hello World. I am conquering you... just like i made it

[Beat_Bob]

@slicer:
upspeed=5.0f
whats the f do?

[_dysfunctional]

Tells the compiler that it is a float, rather than a double. As there is no double on the PSP processor, it is faster to use the 'f' to denote the float than to use the emulated doubles.

[hallo007]

oke i splitt my ap in two threads , and in both threads I need Buttons , but when I use them in both threads , it doesnt work anymore (i use different variabels)


sugestions?

[SG57]

Just one - wtf are buttons? If you are refering to button input in both threads, that makes sense.

[slicer4ever]

how do i load in prx's for example i find in order to init ad-hoc i need to load the following prxs:

"flash0:/kd/ifhandle.prx"
"flash0:/kd/memab.prx"
"flash0:/kd/pspnet_adhoc_auth.prx"
"flash0:/kd/pspnet.prx"
"flash0:/kd/pspnet_adhoc.prx"
"flash0:/kd/pspnet_adhocctl.prx"
"flash0:/kd/pspnet_adhoc_matching.prx "

however i'm unsure how to load a prx into the program i've been pouring over the sdk documentation for a method and have yet to find anything so any help would be appreciated

[Archaemic]

pspSdkLoadStartModule, IIRC.

Also, there's pspSdkLoadInetModules that does just that.

[slicer4ever]

iirc...?

anyways thanks archaemic

[coolguy5678]

If I Remember Correctly.

[slicer4ever]

o.....now i know

[myschoo]

hey guys i was messing today with prxs... i wanted to test PSP_CTRL_DISC to see how does it work... i changed 1 to 0x1000 to set kernel mode but then when i compiled prx, it didnt worked....

if(pad.Buttons & PSP_CTRL_DISC) {
   pspDebugScreenSetXY(1,9);
   printf("UMD            : Ano");
   }
   else
   if(!pad.Buttons & PSP_CTRL_DISC) {
   pspDebugScreenSetXY(1,9);
   printf("UMD            : Nie");
   }

[slicer4ever]

SceUID pspSdkLoadStartModule ( const char * filename,
int mpid
)

what do i need to place as the second parameter? 1,0,what?

[Archaemic]

This is just a guess, but PSP_MEMORY_PARTITION_KERN EL. I don't really know. I've never worked with WiFi.
(and delete that stray space when you put it in the program)

[_dysfunctional]

hey guys i was messing today with prxs... i wanted to test PSP_CTRL_DISC to see how does it work... i changed 1 to 0x1000 to set kernel mode but then when i compiled prx, it didnt worked....

if(pad.Buttons & PSP_CTRL_DISC) {
   pspDebugScreenSetXY(1,9);
   printf("UMD            : Ano");
   }
   else
   if(!pad.Buttons & PSP_CTRL_DISC) {
   pspDebugScreenSetXY(1,9);
   printf("UMD            : Nie");
   }

Remember to use sceCtrlPeakBufferPositive () rather than sceCtrlReadBufferPositive ().

[slicer4ever]

thanks arch

[SG57]

What do you mean by load it into the program. You can easily read from the .prx file via basic file i/o beginners know.

[slicer4ever]

yes u can use basic i/o but i need to load it via module's at least from the example i'm working off i believe i have to

[ultimate-psp]

damn... cant get it workin to rename a file on flash0.
assigned rdwr to flash0 but didnt work!

anyone can help out?

[hallo007]

how dit you do it , post your code or we wont able to help you
-= Double Post =-
how do you get the size of a pointer , i mean this:

char *hello = "hello";

if i ask the size , it returns 5 , how do you do that?

[Archaemic]

For a null-terminated string, use strlen. For anything else, you have to keep track of the size yourself.

[hallo007]

strlen , that was it , forgotten

[brethren]

char *hello = "hello";

if i ask the size , it returns 5 , how do you do that?

5 is the size the strlen function returns, but it is actually taking up 6 bytes of ram as in c the compiler automatically adds the null terminator to a string literal.


with this

char *hello="hello/0";

strlen returns 5 even though you can see its 6 bytes long. The null terminator isn't counted by strlen

[hallo007]

it doesnt need to be counted for me , because i need to see the lenght of some filenames;) but thnx for the info
-= Double Post =-
Is it possible to make a log on the psp?

[ultimate-psp]

works fine when i to rename on ms0 .
but flash didnt work for some weird reason... hope someone can help?


as example...

sceIoUnassign("flash0:");
sceIoAssign("flash0:", "lflash0:0,0", "flashfat0:", IOASSIGN_RDWR, NULL, 0);

if(pad.Buttons & PSP_CTRL_CROSS)
{
sceIoRename("flash0:/xxx.txt", "flash0:/yyy.txt");
}


thanks

[Moca]

5 is the size the strlen function returns, but it is actually taking up 6 bytes of ram as in c the compiler automatically adds the null terminator to a string literal.


with this
char *hello="hello/0";

strlen returns 5 even though you can see its 6 bytes long. The null terminator isn't counted by strlen

I just need to say it -_-
Its: char *hello="hello\0"; instead of char *hello="hello/0";
Well, that would take up 7 bytes since theres 2 null characters now but the idea would be the same :|
Simple error. Nothing big.

it doesnt need to be counted for me , because i need to see the lenght of some filenames;) but thnx for the info
-= Double Post =-
Is it possible to make a log on the psp?

A log? As in a text file...then obviously, yes. For example, since you are talking about files, you could just read each file in a directory and print the list of files into a text file easily using fprintf. Assuming that is what you wanted to do.

[SG57]

Personally, I made my own Log class I use in all my projects. I simply call

Entity.Log("Player got hit by bullet, health now = %i", player.Hleath());
AI.Log("Ghost #%i spotted Player", i);

I recommend you create something similar, as debugging is faster (IMO) should you log step by step in your code.