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%{CPP_TEMPLATE}
#include "main.h"
int main(){
initTextMode();
print("HELLO WORLD",9,9);
while(1){} //loop forever
}
void print(char* text,u16 x,u16 y){
u16 i=0;
u16* ScreenBase = (u16*)0x6004000;
ScreenBase = ScreenBase + x + y*32;
while ( *text != '\0' ){
*ScreenBase++ = (u16)*text-'A'+1;
i++;
text++;
}
}
void initTextMode(){
REG_DISPCNT = (MODE0 | BG2_ENABLE); //this sets the screen mode to mode 0 and enables background 2
// 256 colors and charscreenbase 0, screenbase 8
// default size is 256x256 pixel
REG_BG2CNT = (1 << 7 | 0 << 2 | 8 << 8);
u16* palDest=(u16*)BGPaletteMem; //0x5000000
u16* palSource = (u16*)Master_Palette;
// copy the palette info (256 colors a 15/16 Bit) into the desired address
u16 i=0;
for (;i<256;i++) {
*palDest++ = *palSource++;
}
// copy the tiles to charbase 0, (0x6000000 start of the videobuffer)
u16* fontDest = (u16*)VideoBuffer; //this is the start of video memory
u16* fontSource = (u16*)font_Tiles;
i=0;
for(;i<1920;i=i+2){
*fontDest++ = *fontSource++;
}
}
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