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