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Stores expected bit length.
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48d837c636
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@ -175,7 +175,15 @@ void IWM::write(int address, uint8_t input) {
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bit 6: 1 = MZ-reset.
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bit 6: 1 = MZ-reset.
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bit 7: reserved for future expansion.
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bit 7: reserved for future expansion.
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*/
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*/
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mode_ = input;
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mode_ = input;
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switch(mode_ & 0x18) {
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case 0x00: bit_length_ = Cycles(24); break; // slow mode, 7Mhz
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case 0x08: bit_length_ = Cycles(12); break; // fast mode, 7Mhz
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case 0x10: bit_length_ = Cycles(32); break; // slow mode, 8Mhz
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case 0x18: bit_length_ = Cycles(16); break; // fast mode, 8Mhz
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}
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printf("IWM mode is now %02x\n", mode_);
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printf("IWM mode is now %02x\n", mode_);
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break;
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break;
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@ -53,6 +53,8 @@ class IWM {
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Cycles cycles_until_motor_off_;
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Cycles cycles_until_motor_off_;
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void access(int address);
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void access(int address);
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Cycles bit_length_;
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};
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};
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