GBA div test

div.c

int main() {
    *(unsigned long*) 0x4000000 = 0x403;
    
    unsigned short* vram = (unsigned short*) 0x6000000;
    for(int x = 0; x < 240; x++) {
        for(int y = 0; y < 160; y++) {
            vram[x + y * 240] = (x * 100) / (y + 1);
        }
    }
    
    while(1) {};
    return 1;
}

div.swift

@main
struct GameMain {
    static func main() {
        let REG_DISPCNT = UnsafeMutablePointer<UInt16>(bitPattern: 0x04000000)!
        REG_DISPCNT.pointee = 0x403
        
        let vram = UnsafeMutablePointer<UInt16>(bitPattern: 0x06000000)!
        for x in 0..<240 {
            for y in 0..<160 {
                vram[x + y * 240] = UInt16((x * 100) / (y + 1))
            }
        }
        
        while true {}
    }
}