mirror of
https://github.com/sanni/cartreader.git
synced 2024-11-23 13:09:17 +01:00
Merge pull request #797 from splash5/ws-fastchecksum
Speed up wonderswan checksum calculation by moving codes into rom dump procedure
This commit is contained in:
sanni
GitHub
commit
975a025916
@ -92,7 +92,7 @@ void setup_WS() {
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showCartInfo_WS();
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}
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boolean headerCheck() {
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static boolean headerCheck() {
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dataIn_WS();
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for (uint32_t i = 0; i < 16; i += 2)
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@ -128,9 +128,8 @@ void wsMenu() {
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{
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// Read Rom
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sd.chdir("/");
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readROM_WS(filePath, FILEPATH_LENGTH);
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compareChecksum_WS(readROM_WS(filePath, FILEPATH_LENGTH));
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sd.chdir("/");
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compareChecksum_WS(filePath);
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break;
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}
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case 1:
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@ -190,7 +189,7 @@ void wsMenu() {
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wait();
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}
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uint8_t getCartInfo_WS() {
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static uint8_t getCartInfo_WS() {
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dataIn_WS();
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// for (uint32_t i = 0; i < 16; i += 2)
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@ -216,6 +215,7 @@ uint8_t getCartInfo_WS() {
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case 0xbfdf: // SUMC07
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case 0x50ca: // BANC09
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case 0x9238: // BANC0E
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case 0x04F1: // BANC1A
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{
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sdBuffer[7] |= 0x01;
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break;
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@ -265,9 +265,10 @@ uint8_t getCartInfo_WS() {
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else if (readWord_WS(0xfff22) == 0x006c && readWord_WS(0xfff24) == 0x5b1b) {
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if (readWord_WS(0x93246) == 0x4a2f && readWord_WS(0x93248) == 0x5353 && readWord_WS(0x9324a) == 0x2e32) {
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// jss2
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sdBuffer[6] = 0xff; // WWGP
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sdBuffer[8] = 0x1a; // 2001A
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sdBuffer[7] = 0x01; // color only
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sdBuffer[6] = 0xff; // WWGP
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sdBuffer[8] = 0x1a; // 2001A
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sdBuffer[7] = 0x01; // color only
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sdBuffer[10] = 0x04; // size based on ROM chip capacity
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if (readWord_WS(0x93e9c) == 0x4648 && readWord_WS(0x93e9e) == 0x0050) {
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// WWGP2001A3 -> HFP Version
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@ -282,6 +283,7 @@ uint8_t getCartInfo_WS() {
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sdBuffer[8] = 0x2b; // 2002B
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sdBuffer[7] = 0x01; // color only
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sdBuffer[9] = 0x00;
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sdBuffer[10] = 0x04; // size based on ROM chip (MR27V1602) capacity
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wsGameChecksum = 0x8b1c;
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}
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}
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@ -301,7 +303,7 @@ uint8_t getCartInfo_WS() {
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wsGameOrientation = (sdBuffer[12] & 0x01);
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wsGameHasRTC = (sdBuffer[13] & 0x01);
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getDeveloperName(sdBuffer[6], vendorID, 5);
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getDeveloperName_WS(sdBuffer[6], vendorID, 5);
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snprintf(cartID, 5, "%c%02X", (romType ? 'C' : '0'), sdBuffer[8]);
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snprintf(checksumStr, 5, "%04X", wsGameChecksum);
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snprintf(romName, 17, "%s%s", vendorID, cartID);
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@ -362,13 +364,13 @@ uint8_t getCartInfo_WS() {
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}
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if (saveType == 2)
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unprotectEEPROM();
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unprotectEEPROM_WS();
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// should be 0xea (JMPF instruction)
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return sdBuffer[0];
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}
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void showCartInfo_WS() {
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static void showCartInfo_WS() {
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display_Clear();
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println_Msg(F("Cart Info"));
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@ -412,7 +414,7 @@ void showCartInfo_WS() {
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wait();
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}
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void getDeveloperName(uint8_t id, char *buf, size_t length) {
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static void getDeveloperName_WS(uint8_t id, char *buf, size_t length) {
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if (buf == NULL)
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return;
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@ -475,7 +477,7 @@ void getDeveloperName(uint8_t id, char *buf, size_t length) {
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strlcpy_P(buf, devName, length);
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}
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void readROM_WS(char *outPathBuf, size_t bufferSize) {
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static uint16_t readROM_WS(char *outPathBuf, size_t bufferSize) {
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// generate fullname of rom file
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snprintf(fileName, FILENAME_LENGTH, "%s.ws%c", romName, ((romType & 1) ? 'c' : '\0'));
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@ -506,6 +508,7 @@ void readROM_WS(char *outPathBuf, size_t bufferSize) {
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// get correct starting rom bank
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uint16_t bank = (256 - (cartSize >> 16));
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uint32_t progress = 0;
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uint16_t checksum = 0;
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draw_progressbar(0, cartSize);
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@ -525,9 +528,21 @@ void readROM_WS(char *outPathBuf, size_t bufferSize) {
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if ((addr & ((1 << 14) - 1)) == 0)
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blinkLED();
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for (uint32_t w = 0; w < 512; w += 2)
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for (uint32_t w = 0; w < 512; w += 2) {
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*((uint16_t *)(sdBuffer + w)) = readWord_WS(0x20000 + addr + w);
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// only calculate last two banks of checksum (os and bios region)
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if (wsWitch && bank < 0xfe)
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continue;
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// skip last two bytes of rom (checksum value)
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if (w == 510 && progress == cartSize - 512)
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continue;
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checksum += sdBuffer[w];
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checksum += sdBuffer[w + 1];
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}
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myFile.write(sdBuffer, 512);
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progress += 512;
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}
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@ -535,16 +550,18 @@ void readROM_WS(char *outPathBuf, size_t bufferSize) {
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draw_progressbar(progress, cartSize);
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}
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myFile.close();
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// turn off LEDs (only for BANC33)
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if (wsGameChecksum == 0xeafd) {
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dataOut_WS();
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writeByte_WSPort(0xcd, 0x00);
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}
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myFile.close();
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return checksum;
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}
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void readSRAM_WS() {
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static void readSRAM_WS() {
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// generate fullname of rom file
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snprintf(fileName, FILENAME_LENGTH, "%s.sav", romName);
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@ -598,7 +615,7 @@ void readSRAM_WS() {
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display_Update();
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}
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void verifySRAM_WS() {
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static void verifySRAM_WS() {
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print_Msg(F("Verifying... "));
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display_Update();
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@ -643,7 +660,7 @@ void verifySRAM_WS() {
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}
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}
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void writeSRAM_WS() {
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static void writeSRAM_WS() {
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filePath[0] = 0;
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sd.chdir("/");
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fileBrowser(F("Select sav file"));
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@ -689,7 +706,7 @@ void writeSRAM_WS() {
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}
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}
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void readEEPROM_WS() {
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static void readEEPROM_WS() {
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// generate fullname of eep file
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snprintf(fileName, FILENAME_LENGTH, "%s.eep", romName);
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@ -744,7 +761,7 @@ void readEEPROM_WS() {
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print_STR(done_STR, 1);
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}
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void verifyEEPROM_WS() {
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static void verifyEEPROM_WS() {
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print_Msg(F("Verifying... "));
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display_Update();
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@ -797,7 +814,7 @@ void verifyEEPROM_WS() {
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}
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}
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void writeEEPROM_WS() {
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static void writeEEPROM_WS() {
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filePath[0] = 0;
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sd.chdir("/");
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fileBrowser(F("Select eep file"));
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@ -848,7 +865,7 @@ void writeEEPROM_WS() {
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}
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}
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void writeWitchOS_WS() {
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static void writeWitchOS_WS() {
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// make sure that OS sectors not protected
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dataOut_WS();
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writeWord_WS(0x80aaa, 0xaaaa);
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@ -941,7 +958,7 @@ void writeWitchOS_WS() {
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writeWord_WS(0x80000, 0xf0f0);
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}
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void fastProgramWitchFlash_WS(uint32_t addr, uint16_t data) {
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static void fastProgramWitchFlash_WS(uint32_t addr, uint16_t data) {
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dataOut_WS();
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writeWord_WS(addr, 0xa0a0);
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@ -952,7 +969,7 @@ void fastProgramWitchFlash_WS(uint32_t addr, uint16_t data) {
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;
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}
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void eraseWitchFlashSector_WS(uint32_t sector_addr) {
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static void eraseWitchFlashSector_WS(uint32_t sector_addr) {
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// blink LED
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blinkLED();
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@ -969,49 +986,14 @@ void eraseWitchFlashSector_WS(uint32_t sector_addr) {
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;
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}
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boolean compareChecksum_WS(const char *wsFilePath) {
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if (wsFilePath == NULL)
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return 0;
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display_Clear();
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println_Msg(F("Calculating Checksum"));
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display_Update();
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if (!myFile.open(wsFilePath, O_READ)) {
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print_Error(F("Failed to open file"));
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return 0;
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}
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uint32_t calLength = myFile.fileSize() - 512;
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uint16_t checksum = 0;
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if (wsWitch) {
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// only calcuate last 128Kbytes for wonderwitch (OS and BIOS region)
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myFile.seekCur(myFile.fileSize() - 131072);
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calLength = 131072 - 512;
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}
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for (uint32_t i = 0; i < calLength; i += 512) {
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myFile.read(sdBuffer, 512);
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for (uint32_t j = 0; j < 512; j++)
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checksum += sdBuffer[j];
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}
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// last 512 bytes
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myFile.read(sdBuffer, 512);
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// skip last 2 bytes (checksum value)
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for (uint32_t j = 0; j < 510; j++)
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checksum += sdBuffer[j];
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myFile.close();
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static boolean compareChecksum_WS(uint16_t checksum) {
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char result[11];
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snprintf(result, 11, "%04X(%04X)", wsGameChecksum, checksum);
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print_Msg(F("Result: "));
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println_Msg(result);
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print_Msg(result);
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if (checksum == wsGameChecksum) {
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println_Msg(F("Checksum matches"));
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println_Msg(F(" matches."));
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// Compare CRC32 to database and rename ROM if found
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// Arguments: database name, precalculated crc string or 0 to calculate, rename rom or not, starting offset
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@ -1019,12 +1001,13 @@ boolean compareChecksum_WS(const char *wsFilePath) {
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return 1;
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} else {
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println_Msg(F(""));
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print_Error(F("Checksum Error"));
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return 0;
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}
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}
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void writeByte_WSPort(uint8_t port, uint8_t data) {
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static void writeByte_WSPort(uint8_t port, uint8_t data) {
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PORTF = (port & 0x0f);
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PORTL = (port >> 4);
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@ -1047,7 +1030,7 @@ void writeByte_WSPort(uint8_t port, uint8_t data) {
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PORTH |= ((1 << 3) | (1 << 4));
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}
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uint8_t readByte_WSPort(uint8_t port) {
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static uint8_t readByte_WSPort(uint8_t port) {
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PORTF = (port & 0x0f);
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PORTL = (port >> 4);
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@ -1071,7 +1054,7 @@ uint8_t readByte_WSPort(uint8_t port) {
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return ret;
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}
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void writeWord_WS(uint32_t addr, uint16_t data) {
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static void writeWord_WS(uint32_t addr, uint16_t data) {
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PORTF = addr & 0xff;
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PORTK = (addr >> 8) & 0xff;
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PORTL = (addr >> 16) & 0x0f;
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@ -1089,7 +1072,7 @@ void writeWord_WS(uint32_t addr, uint16_t data) {
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NOP;
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}
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uint16_t readWord_WS(uint32_t addr) {
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static uint16_t readWord_WS(uint32_t addr) {
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PORTF = addr & 0xff;
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PORTK = (addr >> 8) & 0xff;
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PORTL = (addr >> 16) & 0x0f;
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@ -1108,7 +1091,7 @@ uint16_t readWord_WS(uint32_t addr) {
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return ret;
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}
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void writeByte_WS(uint32_t addr, uint8_t data) {
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static void writeByte_WS(uint32_t addr, uint8_t data) {
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PORTF = addr & 0xff;
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PORTK = (addr >> 8) & 0xff;
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PORTL = (addr >> 16) & 0x0f;
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@ -1125,7 +1108,7 @@ void writeByte_WS(uint32_t addr, uint8_t data) {
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NOP;
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}
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uint8_t readByte_WS(uint32_t addr) {
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static uint8_t readByte_WS(uint32_t addr) {
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PORTF = addr & 0xff;
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PORTK = (addr >> 8) & 0xff;
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PORTL = (addr >> 16) & 0x0f;
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@ -1144,7 +1127,7 @@ uint8_t readByte_WS(uint32_t addr) {
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return ret;
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}
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void unprotectEEPROM() {
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static void unprotectEEPROM_WS() {
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generateEepromInstruction_WS(wsEepromShiftReg, 0x0, 0x3);
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dataOut_WS();
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@ -1158,7 +1141,7 @@ void unprotectEEPROM() {
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// generate data for port 0xc6 to 0xc7
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// number of CLK pulses needed for each instruction is 1 + (16 or 32) + 3
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void generateEepromInstruction_WS(uint8_t *instruction, uint8_t opcode, uint16_t addr) {
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static void generateEepromInstruction_WS(uint8_t *instruction, uint8_t opcode, uint16_t addr) {
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uint8_t addr_bits = (sramSize > 1 ? 10 : 6);
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uint16_t *ptr = (uint16_t *)instruction;
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*ptr = 0x0001; // initial with a start bit
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@ -1183,7 +1166,7 @@ void generateEepromInstruction_WS(uint8_t *instruction, uint8_t opcode, uint16_t
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// 2003 MMC need to be unlock,
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// or it will reject all reading and bank switching
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// All signals' timing are analyzed by using LogicAnalyzer
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boolean unlockMMC2003_WS() {
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static boolean unlockMMC2003_WS() {
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// initialize all control pin state
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// RST(PH0) and CLK(PE3or5) to LOW
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// CART(PH3) MMC(PH4) WE(PH5) OE(PH6) to HIGH
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@ -1227,7 +1210,7 @@ boolean unlockMMC2003_WS() {
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}
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// doing a L->H on CLK pin
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void pulseCLK_WS(uint8_t count) {
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static void pulseCLK_WS(uint8_t count) {
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register uint8_t tic;
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// about 384KHz, 50% duty cycle
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@ -1251,7 +1234,7 @@ void pulseCLK_WS(uint8_t count) {
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: [count] "a"(count), [porte] "I"(_SFR_IO_ADDR(PORTE)), [ws_clk_bit] "I"(WS_CLK_BIT));
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}
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void dataIn_WS() {
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static void dataIn_WS() {
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DDRC = 0x00;
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DDRA = 0x00;
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@ -1261,7 +1244,7 @@ void dataIn_WS() {
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PORTA = 0x00;
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}
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void dataOut_WS() {
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static void dataOut_WS() {
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DDRC = 0xff;
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DDRA = 0xff;
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}
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