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saveType 5 for Dragon Slayer Eiyuu Densetsu

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This commit is contained in:
jiyunomegami 2020-07-04 02:01:03 +09:00
parent 61b439e09a
commit 169b853f1b
1 changed files with 20 additions and 4 deletions
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24
Cart_Reader/MD.ino
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@ -219,7 +219,7 @@ void mdCartMenu() {
case 1:
display_Clear();
// Does cartridge have SRAM
if ((saveType == 1) || (saveType == 2) || (saveType == 3)) {
if ((saveType == 1) || (saveType == 2) || (saveType == 3) || (saveType == 5)) {
// Change working dir to root
sd.chdir("/");
println_Msg(F("Reading Sram..."));
@ -236,7 +236,7 @@ void mdCartMenu() {
case 2:
display_Clear();
// Does cartridge have SRAM
if ((saveType == 1) || (saveType == 2) || (saveType == 3)) {
if ((saveType == 1) || (saveType == 2) || (saveType == 3) || (saveType == 5)) {
// Change working dir to root
sd.chdir("/");
// Launch file browser
@ -603,6 +603,10 @@ void getCartInfo_MD() {
sramSize = (sramEnd - sramBase + 2) / 2;
// Right shift sram base address so [A21] is set to high 0x200000 = 0b001[0]00000000000000000000
sramBase = sramBase >> 1;
if (chksum == 0x5D33 && sramEnd == 0x203FFF) { // Dragon Slayer Eiyuu Densetsu
// the high byte read as zero
saveType = 5; // BOTH
}
}
else if (sramBase == 0x200000) {
// high byte
@ -969,6 +973,14 @@ void writeSram_MD() {
writeWord_MD(currByte, ((myFile.read() << 8 ) & 0xFF));
}
}
// Write to both bytes
else if (saveType == 5) {
for (unsigned long currByte = sramBase; currByte < sramBase + sramSize; currByte++) {
word w0 = (myFile.read() & 0xFF); // skip
word w1 = (myFile.read() & 0xFF);
writeWord_MD(currByte, w1);
}
}
else
print_Error(F("Unknown save type"), false);
@ -1018,12 +1030,16 @@ void readSram_MD() {
// Only use the lower byte
sdBuffer[currWord] = (myWord & 0xFF);
}
else { // saveType == 3 (BOTH)
else if (saveType == 3) { // BOTH
sdBuffer[currWord * 2] = (( myWord >> 8 ) & 0xFF);
sdBuffer[(currWord * 2) + 1] = (myWord & 0xFF);
}
else if (saveType == 5) { // duplicate the lower byte
sdBuffer[(currWord * 2) + 0] = (myWord & 0xFF);
sdBuffer[(currWord * 2) + 1] = (myWord & 0xFF);
}
}
if (saveType == 3)
if (saveType == 3 || saveType == 5)
myFile.write(sdBuffer, 512);
else
myFile.write(sdBuffer, 256);