 Paul Gardner-Stephen
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e547b56003
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fix various problems with LOAD taking a real filename. More to do.
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2019-05-05 01:26:37 +09:30 |
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Paul Gardner-Stephen
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f14cf20c92
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explicitly compare read result with zero now that under ROM routines preserve P
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2019-05-05 00:54:53 +09:30 |
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Paul Gardner-Stephen
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66964ab567
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fix routines to peek/poke under ROMs
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2019-05-05 00:53:14 +09:30 |
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Paul Gardner-Stephen
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000b87b87b
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send whole filename, instead of first char until end of time.
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2019-05-05 00:52:41 +09:30 |
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Paul Gardner-Stephen
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4958ad696f
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more work towards making LOAD command accept filename
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2019-05-05 00:45:26 +09:30 |
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Paul Gardner-Stephen
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2824abafd9
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remove debug output
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2019-05-05 00:27:01 +09:30 |
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Paul Gardner-Stephen
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74aaf9fe3f
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fix bug in print_integer with digit 9
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2019-05-05 00:25:15 +09:30 |
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Paul Gardner-Stephen
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5586e61ab9
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fix loading files > 255 bytes long.
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2019-05-05 00:14:21 +09:30 |
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Paul Gardner-Stephen
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f80b49b845
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relink BASIC lines after loading a program.
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2019-05-05 00:11:19 +09:30 |
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Paul Gardner-Stephen
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1b75d2bbfd
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remove debug
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2019-05-05 00:11:13 +09:30 |
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Paul Gardner-Stephen
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6d74679a5c
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set end of loaded memory pointer in BASIC LOAD routine. Other small fixes.
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2019-05-04 23:52:48 +09:30 |
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Paul Gardner-Stephen
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0a97a16552
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remove some debug output
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2019-05-04 23:41:19 +09:30 |
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Paul Gardner-Stephen
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19c9d655ce
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clear reverse video flag after displaying each line
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2019-05-04 23:41:07 +09:30 |
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Paul Gardner-Stephen
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4a3ea0d091
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Start implementing LOAD KERNAL routine to actually load where it should.
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2019-05-04 23:38:42 +09:30 |
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Paul Gardner-Stephen
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fa55c83fff
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generally remove some debug output, add missing file, and make KERNAL LOAD routine more complete.
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2019-05-04 23:12:54 +09:30 |
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Paul Gardner-Stephen
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d124349e50
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handle EOI and generally get closer to a working LOAD routine
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2019-05-04 23:05:23 +09:30 |
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Paul Gardner-Stephen
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287953dab6
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fix latching of initial clock sequence when receiving a byte
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2019-05-04 22:54:46 +09:30 |
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Paul Gardner-Stephen
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1e524eb8be
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send an invalid command instead.
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2019-05-04 22:30:36 +09:30 |
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Paul Gardner-Stephen
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ee87f4a775
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get to the point of being able to receive some bytes before locking up.
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2019-05-04 22:28:29 +09:30 |
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Paul Gardner-Stephen
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ea070f9bfe
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... and actually read the DATA bit when recording data in iec_rx_byte
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2019-05-04 22:20:57 +09:30 |
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Paul Gardner-Stephen
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c80ff23599
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... and fix the same stupid use of wrong bit in iec_wait_for_clock_assert
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2019-05-04 22:18:41 +09:30 |
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Paul Gardner-Stephen
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b1945095fc
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fix stupid checking of wrong bit in iec_wait_for_clock_release
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2019-05-04 22:16:47 +09:30 |
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Paul Gardner-Stephen
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acbac9e5f8
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simplify and fix iec_turnaround_to_listen based on 1541-III documentation
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2019-05-04 22:13:59 +09:30 |
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Paul Gardner-Stephen
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37277ba5a3
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try just reading error channel as a test
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2019-05-04 22:09:42 +09:30 |
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Paul Gardner-Stephen
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d0932029bb
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actually try 255 times before giving up when waiting for talker turnaround.
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2019-05-04 22:09:19 +09:30 |
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Paul Gardner-Stephen
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84841ab283
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fix bug in iec_tx_byte in acknowledgement check.
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2019-05-04 22:01:36 +09:30 |
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Paul Gardner-Stephen
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cdbb1b8c58
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implement dummy read from command channel routine to aid debugging
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2019-05-04 18:09:40 +09:30 |
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Paul Gardner-Stephen
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27432fa745
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fix clearing C flag on return.
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2019-05-04 18:08:57 +09:30 |
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Paul Gardner-Stephen
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c536780970
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fix mounting of disk image for test to not auto-run anything
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2019-05-04 17:25:48 +09:30 |
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Paul Gardner-Stephen
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eedc7e7b7e
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mount a D64 in VICE during tests, so that there is something to read
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2019-05-04 17:13:27 +09:30 |
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Paul Gardner-Stephen
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6dd434c688
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go back to trying to debug real file situation
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2019-05-04 17:08:21 +09:30 |
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Paul Gardner-Stephen
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79017d2d50
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fix FILE NOT FOUND detection in IEC ATN turnaround
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2019-05-04 17:07:05 +09:30 |
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Paul Gardner-Stephen
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8994f3c608
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generally try to debug the FILE NOT FOUND situation
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2019-05-04 17:00:40 +09:30 |
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Paul Gardner-Stephen
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49d5733246
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fix some bugs in IEC ATN turnaround
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2019-05-04 16:59:37 +09:30 |
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Paul Gardner-Stephen
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cc92b7d7e0
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fix typo in iec_release_atn
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2019-05-04 16:37:24 +09:30 |
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Paul Gardner-Stephen
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66c319f116
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fix timeout comparison in iec_tx_byte
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2019-05-04 16:35:04 +09:30 |
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Paul Gardner-Stephen
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7c89705dc6
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nope, that didn't help at all, but did indeed result in live-lock as feared.
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2019-05-04 12:02:52 +09:30 |
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Paul Gardner-Stephen
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3e0c6e3c1e
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try to fix ATN turn around to listen
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2019-05-04 12:02:25 +09:30 |
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Paul Gardner-Stephen
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9f05cc3e4c
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instrument to debug loading.
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2019-05-04 11:52:14 +09:30 |
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Paul Gardner-Stephen
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cc3c17a48a
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add missing file
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2019-05-04 11:47:52 +09:30 |
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Paul Gardner-Stephen
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9f6f179666
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implement the rest of iec_rx_byte
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2019-05-04 11:46:51 +09:30 |
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Paul Gardner-Stephen
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dec2714ba0
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begin implementing iec_rx_byte and rest of LOAD sequence
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2019-05-04 11:30:03 +09:30 |
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Paul Gardner-Stephen
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92ac67d6a7
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fix the bits we are setting and checking in IEC turn around to listen.
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2019-05-04 11:22:02 +09:30 |
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Paul Gardner-Stephen
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e5cdf77d50
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more work towards IEC bus support: Work on LOAD routine and the necessary IEC functions for it.
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2019-05-03 21:30:32 +09:30 |
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Paul Gardner-Stephen
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148a285633
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correctly detect device not present
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2019-05-02 21:55:11 +09:30 |
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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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86a579e91c
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don't corrupt Y register in iec_wait60ns
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2019-05-01 22:45:02 +09:30 |
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Paul Gardner-Stephen
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568bbb1cb2
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fix iec_release_clk to release correct bit
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2019-05-01 22:44:29 +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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