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Add support for the Game Boy TAMA5 mapper (ROM read)

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This commit is contained in:
Lesserkuma 2022-09-25 23:35:29 +02:00
parent 6098700fdd
commit 282f5bc108
1 changed files with 11 additions and 4 deletions
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15
Cart_Reader/GB.ino
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@ -427,7 +427,7 @@ void showCartInfo_GB() {
else if (romType == 252) else if (romType == 252)
print_Msg(F("Camera")); print_Msg(F("Camera"));
else if (romType == 253) else if (romType == 253)
print_Msg(F("TAMA5 (no support)")); print_Msg(F("TAMA5"));
else if (romType == 254) else if (romType == 254)
print_Msg(F("HuC-3")); print_Msg(F("HuC-3"));
else if (romType == 255) else if (romType == 255)
@ -594,7 +594,6 @@ void writeByte_GB(int myAddress, byte myData) {
// Pull WR(PH5) HIGH // Pull WR(PH5) HIGH
PORTH |= (1 << 5); PORTH |= (1 << 5);
// Leave WR high for at least 50ns // Leave WR high for at least 50ns
__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t"); __asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t");
@ -652,7 +651,7 @@ void writeByteSRAM_GB(int myAddress, byte myData) {
__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t"); __asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t");
if (romType == 252) { if (romType == 252 || romType == 253) {
// Pull CS(PH3) LOW // Pull CS(PH3) LOW
PORTH &= ~(1 << 3); PORTH &= ~(1 << 3);
// Pull CLK(PH1)(for GB CAM) HIGH // Pull CLK(PH1)(for GB CAM) HIGH
@ -670,7 +669,7 @@ void writeByteSRAM_GB(int myAddress, byte myData) {
// Leave WR low for at least 60ns // Leave WR low for at least 60ns
__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t"); __asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t");
if (romType == 252) { if (romType == 252 || romType == 253) {
// Pull WR(PH5) HIGH // Pull WR(PH5) HIGH
PORTH |= (1 << 5); PORTH |= (1 << 5);
// Pull CS(PH3) HIGH // Pull CS(PH3) HIGH
@ -954,6 +953,14 @@ void readROM_GB() {
} }
} }
// Set ROM bank for TAMA5
else if (romType == 0xFD) {
writeByteSRAM_GB(0xA001, 0);
writeByteSRAM_GB(0xA000, currBank & 0x0f);
writeByteSRAM_GB(0xA001, 1);
writeByteSRAM_GB(0xA000, (currBank >> 4) & 0x0f);
}
// Set ROM bank for MBC2/3/4/5 // Set ROM bank for MBC2/3/4/5
else if (romType >= 5) { else if (romType >= 5) {
if (romType >= 11 && romType <= 13) { if (romType >= 11 && romType <= 13) {