Merge pull request #1 from ArtemioUrbina/master
Adds a compact verify option, useful for quick key verification
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1 file changed
+95
-43
@@ -1,4 +1,4 @@
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#define version "Sega System16/18/24/X Hitachi FD1094 Security Programmer 1.1 by arcadehacker.blogspot.com"
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#define version "Sega System16/18/24/X Hitachi FD1094 Security Programmer 1.2 by arcadehacker.blogspot.com"
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// Uncomment the game you would like to program from the list below, only one line must be uncommented at any time.
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@@ -165,7 +165,7 @@ const char *Game = "BLANK XXXXXX XXX-XXXX"; const PROGMEM uint16_t Enc
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// Temp buffer to store input line
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#define TEMP_SIZE 512
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#define TEMP_SIZE 256
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char temp[TEMP_SIZE];
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int cBits[8];
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@@ -210,25 +210,25 @@ int invertbit(int Bit)
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int parity(unsigned char cByte)
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{
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int bits[8];
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Byte2Bits(cByte, bits);
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int xor1 = bits[0] ^ bits[1];
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int xor2 = bits[2] ^ bits[3];
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int xor3 = bits[4] ^ bits[5];
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int xor4 = bits[6] ^ bits[7];
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int xora = xor1 ^ xor2;
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int xorb = xor3 ^ xor4;
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int xorf = xora ^ xorb;
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return invertbit(xorf);
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int bits[8];
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Byte2Bits(cByte, bits);
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int xor1 = bits[0] ^ bits[1];
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int xor2 = bits[2] ^ bits[3];
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int xor3 = bits[4] ^ bits[5];
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int xor4 = bits[6] ^ bits[7];
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int xora = xor1 ^ xor2;
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int xorb = xor3 ^ xor4;
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int xorf = xora ^ xorb;
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return invertbit(xorf);
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}
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void readportanalog(char port)
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float readportanalog(char port)
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{
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int value = analogRead(port);
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float voltage = value * (5.0 / 1023.0);
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Serial.print(voltage);
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//Serial.print(voltage);
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return(voltage);
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}
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void clk68k(int count)
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@@ -305,6 +305,7 @@ void writesecret()
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digitalWrite(D0, HIGH); clkrw();
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}
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void dataverifydo()
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{
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verifysecret();
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@@ -313,8 +314,10 @@ void dataverifydo()
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pinMode(D0, INPUT);
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for (int c=0; c <= 8191; c++) {
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float voltage;
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p(" Addr: "); Serial.print(c);
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p(" Read volts: "); readportanalog(D0);
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p(" Read volts: "); voltage = readportanalog(D0); Serial.print(voltage);
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cByte = pgm_read_byte_near(EncryptionKey + c);
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p(" Config Parity: "); Serial.print(parity(cByte));
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p(" Chip Parity: "); Serial.print(digitalRead(D0));
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@@ -322,7 +325,44 @@ void dataverifydo()
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p("\r\n");
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digitalWrite(AS, HIGH); digitalWrite(AS, LOW);
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}
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}
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void dataverifyfastdo()
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{
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int differences = 0, linefeed = 0;
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verifysecret();
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digitalWrite(RW, HIGH); digitalWrite(AD1, HIGH); // activate D0 INPUT
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pinMode(D0, INPUT);
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differences = 0;
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p("Verifying, please wait\r\n");
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for (int c=0; c <= 8191; c++) {
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cByte = pgm_read_byte_near(EncryptionKey + c);
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if (parity(cByte) != digitalRead(D0))
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{
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differences ++;
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p("X");
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}
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else
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p(".");
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digitalWrite(AS, HIGH); digitalWrite(AS, LOW);
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linefeed++;
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if(linefeed == 64)
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{
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linefeed = 0;
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p("\r\n");
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}
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}
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p("\r\n");
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if(!differences)
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p("Verified OK\r\n");
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else
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{
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p("Verify FAILED, Number of differences: "); Serial.print(differences);
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p(" out of 8192\r\nRun with 'v' for full report\r\n");
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}
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}
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void datawritedo()
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@@ -363,6 +403,15 @@ void dataverify()
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p(" Reset HIGH\r\n"); resethi();
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}
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void dataverifyfast()
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{
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p(" Start \r\n");
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p(" Reset LOW\r\n"); resetlo();
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p(" Setup\r\n"); setupinit();
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p(" Working...\r\n"); dataverifyfastdo();
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p(" Cleanup\r\n"); setupcleanup();
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p(" Reset HIGH\r\n"); resethi();
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}
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void datawrite()
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{
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@@ -433,38 +482,41 @@ void setup()
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p("\r\n"); p(version); p("\r\n\r\n");
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p("Commands:\r\n");
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p("w - Writes encryption key data into the FD1094 chip. Select your game by uncommenting the appropriate line in the arduino program source code.\r\n");
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p("v - Dumps and compares a parity bit for all encryption data bytes stored inside the FD1094 chip.\r\n\r\n");
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p("v - Dumps and compares a parity bit for all encryption data bytes stored inside the FD1094 chip.\r\n");
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p("c - Dumps and compares just as 'v' but giving only the global results from the operation.\r\n\r\n");
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p("Game configuration selected: "); p(Game); p("\r\n\r\n");
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}
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void loop()
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{
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if (Serial.available()>0)
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{
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memset(temp, 0, TEMP_SIZE);
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Serial.readBytesUntil('\r', temp, TEMP_SIZE-1);
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{
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if (Serial.available()>0)
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{
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memset(temp, 0, TEMP_SIZE);
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Serial.readBytesUntil('\r', temp, TEMP_SIZE-1);
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char *pTemp = temp;
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char *pTemp = temp;
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if (temp[0]=='w')
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{
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p("Data Write...\r\n");
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datawrite();
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p("Done!\r\n\r\n");
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}
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if (temp[0]=='v')
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{
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p("Data Verify...\r\n");
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dataverify();
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p("Done!\r\n\r\n");
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}
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if (temp[0]=='w')
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{
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p("Data Write...\r\n");
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datawrite();
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p("Done!\r\n\r\n");
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}
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if (temp[0]=='v')
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{
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p("Data Verify...\r\n");
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dataverify();
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p("Done!\r\n\r\n");
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}
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}
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}
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if (temp[0]=='c')
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{
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p("Data Verify...\r\n");
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dataverifyfast();
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p("Done!\r\n\r\n");
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}
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}
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}
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