 Paul Gardner-Stephen
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dcebe17e51
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fix inverted sense of DATA line when writing bytes. We can now get a device to respond to an ATN byte.
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2019-05-01 23:02:29 +09:30 |
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Paul Gardner-Stephen
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e67eb37937
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remove redundant IEC port write during TX setup
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2019-05-01 22:45:18 +09:30 |
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Paul Gardner-Stephen
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3a8200d66d
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IEC serial bytes have 8 bits, not 9. Fix logic to count 8 bits on TX
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2019-05-01 22:16:33 +09:30 |
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Paul Gardner-Stephen
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9f0880ed7e
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fix sense of DATA line reading.
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2019-05-01 22:11:17 +09:30 |
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Paul Gardner-Stephen
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687ed9c56a
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more work towards IEC bus. Also don't corrupt $DD00 VIC-II bank bits in the process.
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2019-05-01 21:47:00 +09:30 |
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Paul Gardner-Stephen
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16dcfbe22b
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begin implementing IEC serial protocol.
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2019-05-01 21:40:32 +09:30 |
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