[pirata nervo]

TUTORIAL: How to make a clock
-----------------------

Makefile:

TARGET = clock
OBJS = main.o     

INCDIR = 
CFLAGS = -G4 -Wall -O2 
CXXFLAGS = $(CFLAGS) -fno-exceptions -fno-rtti
ASFLAGS = $(CFLAGS)

LIBDIR =
LDFLAGS =
STDLIBS= -losl -lpng -lz \
        -lpspsdk -lpspctrl -lpspumd -lpsprtc -lpsppower -lpspgu -lpspaudiolib -lpspaudio -lm
LIBS=$(STDLIBS)$(YOURLIBS)


EXTRA_TARGETS = EBOOT.PBP
PSP_EBOOT_TITLE = clock

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

Our Code:

#include <oslib/oslib.h>

PSP_MODULE_INFO("Relógio", 0, 1, 1);
PSP_MAIN_THREAD_ATTR(THREAD_ATTR_USER | THREAD_ATTR_VFPU);

int hours = 0;
int minutes = 0;
int seconds = 0;
int miliseconds = 0;

int main()
{
    oslInit(0);

    oslInitGfx(OSL_PF_8888, 1);

    oslInitConsole();

    while(!osl_quit)
    {
                    oslReadKeys();

                    if (hours> 24) hours= 1;

                    if (minutes > 60)
                    {
                       hours++;
                       minutes = 1;
                    }

                    if (seconds > 60)
                    {
                       minutes ++;
                       seconds = 1;
                    }

                    if (miliseconds > 60)
                    {
                       seconds ++;
                       miliseconds = 1;
                    }

                    if (miliseconds < 61)
                    {
                       miliseconds++;
                    }

                    oslSetTextColor(RGBA(255,0,0,255));
                    oslPrintf_xy(150,100,"hours :");
                    oslSetTextColor(RGBA(255,255,255,255));
                    oslPrintf_xy(200,100,"%i",hours );

                    oslSetTextColor(RGBA(255,0,0,255));
                    oslPrintf_xy(150,120,"minutes :");
                    oslSetTextColor(RGBA(255,255,255,255));
                    oslPrintf_xy(213,120,"%i",minutes );

                    oslSetTextColor(RGBA(255,0,0,255));
                    oslPrintf_xy(150,140,"seconds :");
                    oslSetTextColor(RGBA(255,255,255,255));
                    oslPrintf_xy(220,140,"%i",seconds );

                    oslSyncFrame();

    }

    oslEndGfx();
    oslQuit();
    return 0;
}

oslSetTextColor(RGBA(255,0,0,255)); set the text color to red

Note: it only print on the screen the seconds, minutes and hours, it doesnt print on the screen the microseconds.
We need the microseconds variable to make the seconds.

But if you need help post here.