chip-328.ino

#include "chip328lib.h"
#include "ssd1306.h"

uint8_t keys[4][4] = {
  {0x1,0x2,0x3,0xC},
  {0x4,0x5,0x6,0xD},
  {0x7,0x8,0x9,0xE},
  {0xA,0x0,0xB,0xF}
};

uint8_t interfaceGetKey(){
  int j;
    for(j=0;j<4;j++){
      digitalWrite(j+2, HIGH);
      if(digitalRead(6) == HIGH){
        digitalWrite(j+2, LOW);
        return keys[0][j];
      }
      if(digitalRead(7) == HIGH){
        digitalWrite(j+2, LOW);
        return keys[1][j];
      }
      if(digitalRead(8) == HIGH){
        digitalWrite(j+2, LOW);
        return keys[2][j];
      }
      if(digitalRead(9) == HIGH){
        digitalWrite(j+2, LOW);
        return keys[3][j];
      }
      digitalWrite(j+2, LOW);
    }
}

unsigned long current = 0, dtMillis = 0;

uint8_t chip328Display[256];

uint8_t interfacePutPixel(uint8_t x, uint8_t y, uint8_t pixel){
  uint8_t collision = 0;
  uint8_t pos;

  if(pixel){
    pos = ((x+(y/8)*64));

    if(chip328Display[pos]&(0b00000001<<(y%8))) collision = 1;
    chip328Display[pos] = chip328Display[pos]^(0b00000001<<(y%8));
  }
  return collision;
}

void interfaceDelayTimer(int value){
  //if(DT!=0) DT--;
  //glutTimerFunc(17, interfaceDelayTimer, 0);
}

void interfaceLoadROM(){
  int i;
  const PROGMEM uint8_t brix[280] = {0x6E, 0x05, 0x65, 0x00, 0x6B, 0x06, 0x6A, 0x00, 0xA3, 0x0C, 0xDA, 0xB1, 0x7A, 0x04, 0x3A, 0x40, 0x12, 0x08, 0x7B, 0x02, 0x3B, 0x12, 0x12, 0x06, 0x6C, 0x20, 0x6D, 0x1F, 0xA3, 0x10, 0xDC, 0xD1, 0x22, 0xF6, 0x60, 0x00, 0x61, 0x00, 0xA3, 0x12, 0xD0, 0x11, 0x70, 0x08, 0xA3, 0x0E, 0xD0, 0x11, 0x60, 0x40, 0xF0, 0x15, 0xF0, 0x07, 0x30, 0x00, 0x12, 0x34, 0xC6, 0x0F, 0x67, 0x1E, 0x68, 0x01, 0x69, 0xFF, 0xA3, 0x0E, 0xD6, 0x71, 0xA3, 0x10, 0xDC, 0xD1, 0x60, 0x04, 0xE0, 0xA1, 0x7C, 0xFE, 0x60, 0x06, 0xE0, 0xA1, 0x7C, 0x02, 0x60, 0x3F, 0x8C, 0x02, 0xDC, 0xD1, 0xA3, 0x0E, 0xD6, 0x71, 0x86, 0x84, 0x87, 0x94, 0x60, 0x3F, 0x86, 0x02, 0x61, 0x1F, 0x87, 0x12, 0x47, 0x1F, 0x12, 0xAC, 0x46, 0x00, 0x68, 0x01, 0x46, 0x3F, 0x68, 0xFF, 0x47, 0x00, 0x69, 0x01, 0xD6, 0x71, 0x3F, 0x01, 0x12, 0xAA, 0x47, 0x1F, 0x12, 0xAA, 0x60, 0x05, 0x80, 0x75, 0x3F, 0x00, 0x12, 0xAA, 0x60, 0x01, 0xF0, 0x18, 0x80, 0x60, 0x61, 0xFC, 0x80, 0x12, 0xA3, 0x0C, 0xD0, 0x71, 0x60, 0xFE, 0x89, 0x03, 0x22, 0xF6, 0x75, 0x01, 0x22, 0xF6, 0x45, 0x60, 0x12, 0xDE, 0x12, 0x46, 0x69, 0xFF, 0x80, 0x60, 0x80, 0xC5, 0x3F, 0x01, 0x12 , 0xCA, 0x61, 0x02, 0x80, 0x15, 0x3F, 0x01, 0x12, 0xE0, 0x80, 0x15, 0x3F, 0x01, 0x12, 0xEE, 0x80, 0x15, 0x3F, 0x01, 0x12, 0xE8, 0x60, 0x20, 0xF0, 0x18, 0xA3, 0x0E, 0x7E, 0xFF, 0x80, 0xE0, 0x80, 0x04, 0x61, 0x00, 0xD0, 0x11, 0x3E, 0x00, 0x12, 0x30, 0x12, 0xDE, 0x78, 0xFF, 0x48, 0xFE, 0x68 , 0xFF, 0x12, 0xEE, 0x78, 0x01, 0x48, 0x02, 0x68, 0x01, 0x60, 0x04, 0xF0, 0x18, 0x69, 0xFF, 0x12, 0x70, 0xA3, 0x14, 0xF5, 0x33, 0xF2, 0x65, 0xF1, 0x29, 0x63, 0x37, 0x64, 0x00, 0xD3, 0x45, 0x73, 0x05, 0xF2, 0x29, 0xD3, 0x45, 0x00, 0xEE, 0xE0, 0x00, 0x80, 0x00, 0xFC, 0x00, 0xAA, 0x00, 0x00, 0x00, 0x00, 0x00};
  for(i=0;i<280;i++){
    chip328MemoryWrite(i+512, brix[i]);
  }
}

void setup() {
    //Linhas do teclado
    pinMode(2, OUTPUT);
    pinMode(3, OUTPUT);
    pinMode(4, OUTPUT);
    pinMode(5, OUTPUT);
    digitalWrite(2, LOW);
    digitalWrite(3, LOW);
    digitalWrite(4, LOW);
    digitalWrite(5, LOW);

    //Colunas do teclado
    pinMode(6, INPUT);
    pinMode(7, INPUT);
    pinMode(8, INPUT);
    pinMode(9, INPUT);

    interfaceLoadROM();
    chip328Begin();
    ssd1306_128x64_i2c_init();
    ssd1306_fillScreen( 0x00 );
}

void loop() {
    chip328Emulate();
    DT = 0; //Implementar o DT--;
}