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https://github.com/sanni/cartreader.git
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commit
99df2d4bf5
@ -18,7 +18,6 @@
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#define HUCARD 0
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#define TURBOCHIP 1
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#define HUCARD_NOSWAP 2
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#define DETECTION_SIZE 64
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#define CHKSUM_SKIP 0
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#define CHKSUM_OK 1
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@ -43,7 +42,6 @@ void read_rom_PCE(void);
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Variables
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*****************************************/
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uint8_t pce_internal_mode; //0 - HuCARD, 1 - TurboChip
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uint16_t pce_force_rom_size = 0;
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uint8_t tennokoe_bank_index = 0;
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@ -311,14 +309,15 @@ void write_byte_PCE(uint32_t address, uint8_t data) {
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PORTH |= (1 << 5);
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}
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//Confirm the size of ROM - 128Kb, 256Kb, 384Kb, 512Kb, 768Kb or 1024Kb
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//Confirm the size of ROM
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uint32_t detect_rom_size_PCE(void) {
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uint32_t rom_size;
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uint8_t read_byte;
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uint8_t current_byte;
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uint8_t detect_128, detect_256, detect_512, detect_768;
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uint8_t detect_32, detect_128, detect_256, detect_512, detect_768;
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//Initialize variables
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detect_32 = 0;
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detect_128 = 0;
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detect_256 = 0;
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detect_512 = 0;
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@ -327,16 +326,23 @@ uint32_t detect_rom_size_PCE(void) {
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//Set pins to read PC Engine cart
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pin_read_write_PCE();
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//Confirm where mirror address start from(128KB, 256KB, 512KB, 768, or 1024KB)
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//Confirm where mirror address start from (32KB, 128KB, 256KB, 512KB, 768KB, or 1024KB)
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for (current_byte = 0; current_byte < DETECTION_SIZE; current_byte++) {
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if ((current_byte != detect_128) && (current_byte != detect_256) && (current_byte != detect_512) && (current_byte != detect_768)) {
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if ((current_byte != detect_32) && (current_byte != detect_128) && (current_byte != detect_256) && (current_byte != detect_512) && (current_byte != detect_768)) {
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//If none matched, it is 1024KB
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break;
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}
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//read byte for 128KB, 256KB, 512KB detection
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//read byte for 32KB, 128KB, 256KB, 512KB detection
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read_byte = read_byte_PCE(current_byte);
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//32KB detection
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if (current_byte == detect_32) {
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if (read_byte_PCE(current_byte + 32UL * 1024UL) == read_byte) {
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detect_32++;
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}
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}
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//128KB detection
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if (current_byte == detect_128) {
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if (read_byte_PCE(current_byte + 128UL * 1024UL) == read_byte) {
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@ -368,25 +374,33 @@ uint32_t detect_rom_size_PCE(void) {
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}
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//debug
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//sprintf(fileName, "%d %d %d %d", detect_128, detect_256, detect_512, detect_768); //using filename global variable as string. Initialzed in below anyways.
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//sprintf(fileName, "%d %d %d %d %d", detect_32, detect_128, detect_256, detect_512, detect_768); //using filename global variable as string. Initialzed in below anyways.
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//println_Msg(fileName);
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//ROM size detection by result
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if (detect_128 == DETECTION_SIZE) {
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if (detect_32 == DETECTION_SIZE) {
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rom_size = 32;
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}
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else if (detect_128 == DETECTION_SIZE) {
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rom_size = 128;
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} else if (detect_256 == DETECTION_SIZE) {
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}
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else if (detect_256 == DETECTION_SIZE) {
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if (detect_512 == DETECTION_SIZE) {
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rom_size = 256;
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} else {
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}
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else {
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//rom_size = 1024;
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//Another confirmation for 384KB because 384KB hucard has data in 0x0--0x40000 and 0x80000--0xA0000(0x40000 is mirror of 0x00000)
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rom_size = 384;
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}
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} else if (detect_512 == DETECTION_SIZE) {
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}
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else if (detect_512 == DETECTION_SIZE) {
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rom_size = 512;
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} else if (detect_768 == DETECTION_SIZE) {
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}
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else if (detect_768 == DETECTION_SIZE) {
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rom_size = 768;
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} else {
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}
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else {
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rom_size = 1024;
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}
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@ -473,9 +487,7 @@ void crc_search(char *file_p, char *folder_p, uint32_t rom_size __attribute__((u
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print_Msg(folder_p);
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print_Msg(F("/"));
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print_Msg(gamename);
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//print_Msg(F(".pce"));
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flag = CHKSUM_OK;
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//strcat(gamename, ".pce");
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rom.rename(gamename);
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break;
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}
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@ -867,4 +879,4 @@ void pceMenu() {
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//******************************************
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// End of File
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//******************************************
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//******************************************
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