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TamaRomConvert.java
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TamaRomConvert.java
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import java.io.BufferedWriter;
import java.io.FileOutputStream;
import java.io.OutputStreamWriter;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
public class TamaRomConvert {
private static final char[] HEX_ARRAY = "0123456789ABCDEF".toCharArray();
private static final String lineSeparator = System.getProperty("line.separator");
public static String byteToHex(byte b) {
char[] hexChars = new char[2];
int v = b & 0xFF;
hexChars[0] = HEX_ARRAY[v >>> 4];
hexChars[1] = HEX_ARRAY[v & 0x0F];
return new String(hexChars);
}
public static void main(String argv[]) {
if (argv.length!=1) {
System.out.println("Usage: java TamaRomConvert [Tamagotchi P1 ROM File]");
return;
}
String inFile = argv[0];
System.out.println("Reading Tamagotchi P1 ROM [" + inFile +"]....");
try {
Path path = Paths.get(inFile);
byte[] data = Files.readAllBytes(path);
System.out.print("ROM Size: " + data.length);
if (data.length==12288) {
System.out.println(" - Correct size");
} else {
System.out.println(" - Incorrect size! Expected: 12288 bytes");
return;
}
byte[] b = new byte[3];
BufferedWriter writer=null;
writer = new BufferedWriter(new OutputStreamWriter(new FileOutputStream("rom_12bit.h", false),"UTF-8"));
writer.write("static const unsigned char g_program_b12[] PROGMEM = {" + lineSeparator);
for (int i = 0; i < (data.length/4); i++) {
// System.out.print(byteToHex(data[i]) + ",");
if ((i % 6)==0) writer.write(" ");
int v1 = data[i*4]; // 0F
int v2 = data[i*4+1]; // A2
int v3 = data[i*4+2]; // 0C
int v4 = data[i*4+3]; // 87
b[0] = (byte)(v1 << 4 | ((v2 >> 4) & 0xF));
b[1] = (byte)(((v2 & 0xF) << 4) | v3);
b[2] = (byte)v4;
writer.write("0x" + byteToHex(b[0]) + ",");
writer.write("0x" + byteToHex(b[1]) + ",");
writer.write("0x" + byteToHex(b[2]) + ",");
writer.write(" ");
if (((i+1) % 6)==0) {
writer.write(lineSeparator);
}
}
writer.write("};" + lineSeparator);
writer.close();
System.out.println("[rom_12bit.h] header file generated successfully! Enjoy.");
} catch (Exception e) {
e.printStackTrace();
}
}
}