C/C++ Programming Help Thread

[JaSo PsP]

@yaustar

I used the code that you posed and it worked. I have got a second counter based on the ticks.

However...

When i divide res by 1000, to get a millisecond counter, it goes ALOT slower, 1000 milliseconds pass in about 15 seconds, when 1000ms are supposed to be 1 second.

[JaSo PsP]

ah CRAP! i JUST realised WHY!

It takes longer to loop thru the program than it does to pass one millisecond! And MS can only ever increase by one!

I think i can figure this out...

[_df_]

aaaah you just discovered why you need to understand fps + timestepping..

Fix Your Timestep! Gaffer on Games

[pspwxp_fan]

Ok, here's the biggest newb question yet, probably.
I have Dev-c++ and just downloaded MinPSPSDK. Can someone tell me how to directly code and compile psp homebrew from the dev-c++ IDE please

[FaT3oYCG]

add the min psp sdk as an external compiler in the settings that is more of a dev c++ question than a psp programming one.

[pspwxp_fan]

Can't find any way to do that .
Added directories in Compiler options but it (obviously) didn't work.

[mootjeuh]

okay, I know this isn't much of a C/C++ question, but can someone point me to some MIPS Assembly tutorials?

[Davee]

Originally Posted by mootjeuh

okay, I know this isn't much of a C/C++ question, but can someone point me to some MIPS Assembly tutorials?

Tutorial? doubts.
It's not something usually given as a tutorial, it's way too straightforward to tutor. You can get mnemonic definitions from a reference set (easily googled). Basically, you need to know how a processor operates to understand assembler language.

[atomic_boneman]

Why is it so damn difficult to set-up the psp programming environment.I downloaded mini blah blah blah, i have dev C++ and even tried to add SQL as an external compiler in dev c++ for other things and all i get are errors...its so frustrating. :ah)

[mootjeuh]

Originally Posted by atomic_boneman

Why is it so damn difficult to set-up the psp programming environment.I downloaded mini blah blah blah, i have dev C++ and even tried to add SQL as an external compiler in dev c++ for other things and all i get are errors...its so frustrating. :ah)

dude just use minPSPw

[FaT3oYCG]

lol how many times :P mot devs only require MinPSPW and you would only need the toolchain if you needed to add a custom library for some reason XD.

[lilmnm]

Originally Posted by mootjeuh

okay, I know this isn't much of a C/C++ question, but can someone point me to some MIPS Assembly tutorials?

here is a intro from Central Connecticut State University it had a few tuts in it when i was skkimming through it

Programmed Introduction to MIPS Assembly Language

[mootjeuh]

Originally Posted by lilmnm

here is a intro from Central Connecticut State University it had a few tuts in it when i was skkimming through it

Programmed Introduction to MIPS Assembly Language

okay thanks
new question, if I want to open a file and read it using the PSPSDK, should I do something like this:

SceUID file = sceIoOpen("file.txt", PSP_O_RDONLY, 0777);
void *data;
sceIoRead(file, data, sizeof(data));

?


EDIT: nvm, I figured it out

[pentagram]

Some questions:


1. How do I get the FW version and motherboard version, and print them. I used sysparam sample and i want to print the FW and motherboard version.

2.I`ve tryed a psp buttons test:

sceCtrlReadBufferPositive(&pad, 1); 

		printf("Analog X = %d ", pad.Lx);
		printf("Analog Y = %d \n", pad.Ly);

		if (pad.Buttons != 0){
			if (pad.Buttons & PSP_CTRL_SQUARE){
				printf("Square pressed \n");
			}
			if (pad.Buttons & PSP_CTRL_TRIANGLE){
				printf("Triangle pressed \n");
			} 
			if (pad.Buttons & PSP_CTRL_CIRCLE){
				printf("Cicle pressed \n");
			} 
			if (pad.Buttons & PSP_CTRL_CROSS){
				printf("Cross pressed \n");
			} 

			if (pad.Buttons & PSP_CTRL_UP){
				printf("Up pressed \n");
			} 
			if (pad.Buttons & PSP_CTRL_DOWN){
				printf("Down pressed \n");
			} 
			if (pad.Buttons & PSP_CTRL_LEFT){
				printf("Left pressed \n");
			} 
			if (pad.Buttons & PSP_CTRL_RIGHT){
				printf("Right pressed \n");
			}      

			if (pad.Buttons & PSP_CTRL_START){
				printf("Start pressed \n");
			}
			if (pad.Buttons & PSP_CTRL_SELECT){
				printf("Select pressed \n");
			}
			if (pad.Buttons & PSP_CTRL_LTRIGGER){
				printf("L-trigger pressed \n");
			}
			if (pad.Buttons & PSP_CTRL_RTRIGGER){
				printf("R-trigger pressed \n");
			}      
		}
	}

But i`ve added more from pspctrl.h
->

			if (pad.Buttons & PSP_CTRL_HOME){
				printf("Ati apasat butonul 'HOME' \n");
				}
			if (pad.Buttons & PSP_CTRL_HOLD){
				printf("Ati activat butonul 'HOLD' \n");
			}
			if (pad.Buttons & PSP_CTRL_NOTE ){
				printf("Ati apasat butonul 'NOTE ' \n");
			}
			if (pad.Buttons & PSP_CTRL_SCREEN ){
				printf("Ati apasat butonul 'SCREEN ' \n");
			}
			if (pad.Buttons & PSP_CTRL_VOLUP ){
				printf("Ati apasat butonul 'VOLUME UP' \n");
			}
			if (pad.Buttons & PSP_CTRL_VOLDOWN ){
				printf("Ati apasat butonul 'VOLUME DOWN' \n");
			}
			if (pad.Buttons & PSP_CTRL_WLAN_UP ){
				printf("Ati activat butonul de activare 'WLAN' \n");
			}
			if (pad.Buttons & PSP_CTRL_REMOTE ){
				printf("Unitatea UMD functioneaza. Aveti un UMD inserat.\n");
			}
			if (pad.Buttons & PSP_CTRL_MS ){
				printf("Aveti introdus un card in PSP-ul dvs.\n");
			}

I`ve know that WLAN_UP, MS and REMOTE don`t work, BUT, how do i make HOME BUTTON,SCREEN and other added work? Becouse they do they standard function (Home->Exit homebrew).

[mootjeuh]

does anyone know if there's a graphics.c version of Danzeff's OSK ? coz I really don't understand SDL...
help is greatly appreciated