> "make"
arm-elf-g++ -g -Wall -O2 -mcpu=arm7tdmi -mtune=arm7tdmi -fomit-frame-pointer -ffast-math -mthumb-interwork -I/c/devkitPro/libnds/include -DARM7 -c arm7_main.cpp -oarm7_main.o
arm7_main.cpp: In function 'void InterruptHandler()':
arm7_main.cpp:17: error: 'IF' was not declared in this scope
arm7_main.cpp:71: error: 'IF' was not declared in this scope
arm7_main.cpp: In function 'int main(int, char**)':
arm7_main.cpp:87: error: 'IME' was not declared in this scope
arm7_main.cpp:89: error: 'IE' was not declared in this scope
arm7_main.cpp:90: error: 'IF' was not declared in this scope
"make": *** [arm7_main.o] Error 1

> Process Exit Code: 2

//
// Codice ARM7 DSence -> Tutorial 2
// http://dsence.ordinaryvanity.com/
//

#include <nds.h>


#define TOUCH_CAL_X1 (*(vs16*)0x027FFCD8)
#define TOUCH_CAL_Y1 (*(vs16*)0x027FFCDA)
#define TOUCH_CAL_X2 (*(vs16*)0x027FFCDE)
#define TOUCH_CAL_Y2 (*(vs16*)0x027FFCE0)
#define SCREEN_WIDTH    256
#define SCREEN_HEIGHT   192
s32 TOUCH_WIDTH  = TOUCH_CAL_X2 - TOUCH_CAL_X1;
s32 TOUCH_HEIGHT = TOUCH_CAL_Y2 - TOUCH_CAL_Y1;
s32 TOUCH_OFFSET_X = ( ((SCREEN_WIDTH -60) * TOUCH_CAL_X1) / TOUCH_WIDTH  ) - 28;
s32 TOUCH_OFFSET_Y = ( ((SCREEN_HEIGHT-60) * TOUCH_CAL_Y1) / TOUCH_HEIGHT ) - 28;



void startSound(int sampleRate, const void* data, uint32 bytes, u8 channel=0, u8 vol=0x7F,  u8 pan=63, u8 format=0) {
 SCHANNEL_TIMER(channel)  = SOUND_FREQ(sampleRate);
 SCHANNEL_SOURCE(channel) = (uint32)data;
 SCHANNEL_LENGTH(channel) = bytes;
 SCHANNEL_CR(channel)     = SOUND_ENABLE | SOUND_ONE_SHOT | SOUND_VOL(vol) | SOUND_PAN(pan) | (format==1?SOUND_8BIT:SOUND_16BIT);
}


s8 getFreeSoundChannel() {
 for (int i=0; i<16; i++) {
   if ( (SCHANNEL_CR(i) & SOUND_ENABLE) == 0 ) return i;
 }
 return -1;
}




void InterruptHandler(void) {
 static int heartbeat = 0;

 if (IF & IRQ_VBLANK) {
   uint16 but=0, x=0, y=0, xpx=0, ypx=0, z1=0, z2=0, batt=0, aux=0;
   int t1=0, t2=0;
   uint32 temp=0;
   uint8 ct[sizeof(IPC->curtime)];

   
   // Update the heartbeat
   heartbeat++;

   // Read the X/Y buttons and the /PENIRQ line
   but = XKEYS;
   if (!(but & 0x40)) {
     // Read the touch screen
     x = touchRead(TSC_MEASURE_X);
     y = touchRead(TSC_MEASURE_Y);
     xpx = ( ((SCREEN_WIDTH -60) * x) / TOUCH_WIDTH  ) - TOUCH_OFFSET_X;
     ypx = ( ((SCREEN_HEIGHT-60) * y) / TOUCH_HEIGHT ) - TOUCH_OFFSET_Y;
     z1 = touchRead(TSC_MEASURE_Z1);
     z2 = touchRead(TSC_MEASURE_Z2);
   }

   batt = touchRead(TSC_MEASURE_BATTERY);
   aux  = touchRead(TSC_MEASURE_AUX);

   // Read the time
   rtcGetTime((uint8 *)ct);
   BCDToInteger((uint8 *)&(ct[1]), 7);

   // Read the temperature
   temp = touchReadTemperature(&t1, &t2);

   // Update the IPC struct
   IPC->heartbeat = heartbeat;
   IPC->buttons   = but;
   IPC->touchX    = x;
   IPC->touchY    = y;
   IPC->touchXpx  = xpx;
   IPC->touchYpx  = ypx;
   IPC->touchZ1   = z1;
   IPC->touchZ2   = z2;
   IPC->battery   = batt;
   IPC->aux       = aux;

   for(u32 i=0; i<sizeof(ct); i++) {
     IPC->curtime[i] = ct[i];
   }

   IPC->temperature = temp;
   IPC->tdiode1 = t1;
   IPC->tdiode2 = t2;


   //sound code  :)
   TransferSound *snd = IPC->soundData;
   IPC->soundData = 0;
   if (snd) {
     for (int i=0; i<snd->count; i++) {
       s8 chan = getFreeSoundChannel();
       if (chan >= 0) {
         startSound(snd->data[i].rate, snd->data[i].data, snd->data[i].len, chan, snd->data[i].vol, snd->data[i].pan, snd->data[i].format);
       }
     }
   }
 }

 // Acknowledge interrupts
 IF = IF;
}




int main(int argc, char ** argv) {
 // Reset the clock if needed
 rtcReset();

 //enable sound
 SOUND_CR = SCHANNEL_ENABLE | SOUND_VOL(0x7F);
 IPC->soundData = 0;

 // Set up the interrupt handler
 IME = 0;
 IRQ_HANDLER = &InterruptHandler;
 IE = IRQ_VBLANK;
 IF = ~0;
 DISP_SR = DISP_VBLANK_IRQ;
 IME = 1;

 // Keep the ARM7 out of main RAM
 while (1) swiWaitForVBlank();
 return 0;
}

//
// Codice ARM9 DSence -> Tutorial 2
// http://dsence.ordinaryvanity.com/
//


#include <nds.h>
#include "nds/arm9/console.h"

int main(void)
{
 powerON(POWER_ALL);
 
 // Usa lo schermo principale per l'output
 videoSetMode(MODE_0_2D | DISPLAY_BG0_ACTIVE);
 vramSetBankA(VRAM_A_MAIN_BG);
 BG0_CR = BG_MAP_BASE(31);

 // Setta il colore del font a bianco
 BG_PALETTE[255] = RGB15(31,31,31);

 // Effettua lo swap degli schermi.
 // In questo modo lo schermo principale è lo schermo inferiore
 lcdSwap();

 // Inizializza la console. La funzione consoleInit() è piu' flessibile
 // ma consoleInitDefault ci permette di eseguire l'init in modo piu' semplice e rapido.
 consoleInitDefault((u16*)SCREEN_BASE_BLOCK(31), (u16*)CHAR_BASE_BLOCK(0), 16);

 consolePrintf("\n\n\tHello World!\n");
 consolePrintf("\n\nhttp://dsdev.host.sk/");

 while(1) {
   consolePrintSet(0,10);
   consolePrintf("Touch x = %x\n", IPC->touchX);
   consolePrintf("Touch y = %x\n", IPC->touchY);      
 }
 return 0;
}