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Ensure EXDOS card is completely disabled if no FDC is present.
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@ -329,11 +329,19 @@ template <bool has_disk_controller> class ConcreteMachine:
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case 0x10: case 0x11: case 0x12: case 0x13:
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case 0x14: case 0x15: case 0x16: case 0x17:
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*cycle.value = exdos_.read(address);
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if constexpr (has_disk_controller) {
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*cycle.value = exdos_.read(address);
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} else {
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*cycle.value = 0xff;
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}
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break;
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case 0x18: case 0x19: case 0x1a: case 0x1b:
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case 0x1c: case 0x1d: case 0x1e: case 0x1f:
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*cycle.value = exdos_.get_control_register();
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if constexpr (has_disk_controller) {
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*cycle.value = exdos_.get_control_register();
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} else {
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*cycle.value = 0xff;
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}
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break;
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case 0xb0: *cycle.value = pages_[0]; break;
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@ -367,11 +375,15 @@ template <bool has_disk_controller> class ConcreteMachine:
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case 0x10: case 0x11: case 0x12: case 0x13:
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case 0x14: case 0x15: case 0x16: case 0x17:
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exdos_.write(address, *cycle.value);
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if constexpr(has_disk_controller) {
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exdos_.write(address, *cycle.value);
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}
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break;
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case 0x18: case 0x19: case 0x1a: case 0x1b:
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case 0x1c: case 0x1d: case 0x1e: case 0x1f:
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exdos_.set_control_register(*cycle.value);
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if constexpr(has_disk_controller) {
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exdos_.set_control_register(*cycle.value);
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}
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break;
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case 0x80: case 0x81: case 0x82: case 0x83:
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