Thomas Harte
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b3d3fd70aa
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Merge pull request #156 from TomHarte/P81
Adds support for the P81 file format
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2017-07-22 16:03:38 -04:00 |
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Thomas Harte
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6633537fb8
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Discovering that there is such a thing as P81 — a ZX81 file without the name omitted — added support for it. Extended FileHolder while I was here to retain the file name and be able to supply its extension, as my quick-fix test-the-last-character approach to o/p/80/81 discrimination stops working with p81 thrown into the mix and this feels like the correct factoring.
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2017-07-22 16:02:25 -04:00 |
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Thomas Harte
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4dec9716c4
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Merge pull request #155 from TomHarte/MissingByte
Corrects infrastructure that led to the final bit of a ZX80 or ZX81 tape never exiting the parser
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2017-07-22 15:43:50 -04:00 |
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Thomas Harte
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313b36944f
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Ensured that the final bit of a tape isn't dropped even if the tape ends exactly after it, by not posting a false pulse, being less restrictive about what can cap a bit, and in any case using a long gap as the end-of-file bookend.
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2017-07-22 15:41:33 -04:00 |
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Thomas Harte
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456fdda6c2
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Ensured that the mark_end step can't overwrite another recognised symbol.
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2017-07-22 15:40:22 -04:00 |
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Thomas Harte
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a6b239698c
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Merge pull request #153 from TomHarte/StricterWarnings
Enabled stricter compiler warnings
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2017-07-21 22:28:55 -04:00 |
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Thomas Harte
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92d1dd9a4a
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Attempts to eliminate all remaining type variations.
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2017-07-21 21:54:05 -04:00 |
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Thomas Harte
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45ec5f8eab
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Eliminated implicit sign conversion.
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2017-07-21 21:53:27 -04:00 |
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Thomas Harte
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1d01acce06
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Fixed differing types of loop variables and targets.
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2017-07-21 21:53:05 -04:00 |
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Thomas Harte
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be750ee427
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Eliminated all dangling implicit signedness conversions.
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2017-07-21 21:52:37 -04:00 |
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Thomas Harte
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dddb30477b
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Used a different inner-loop variable, for clarity.
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2017-07-21 21:52:08 -04:00 |
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Thomas Harte
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37459a3ebc
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Fixed parameter shadowing.
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2017-07-21 21:51:18 -04:00 |
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Thomas Harte
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449c33ee8b
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Signedness fixes.
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2017-07-21 21:28:04 -04:00 |
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Thomas Harte
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2b5d0877a8
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Adjusted parameter name to match documentation. I think it's a carry-over from before I was passing the whole event along.
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2017-07-21 21:27:50 -04:00 |
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Thomas Harte
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6d5807ec4b
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Fixed sign and ensured that the DataFromString implementation is of the thing declared in the header.
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2017-07-21 21:24:28 -04:00 |
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Thomas Harte
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64865b3f41
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Signedness fixes.
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2017-07-21 21:23:34 -04:00 |
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Thomas Harte
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53f0e1896b
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Made delay_time_ unsigned for safe comparison.
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2017-07-21 21:21:23 -04:00 |
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Thomas Harte
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aaa60dab12
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Fixed signedness of index.
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2017-07-21 21:21:01 -04:00 |
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Thomas Harte
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9b72c445a7
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Fixed indexing type.
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2017-07-21 21:19:46 -04:00 |
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Thomas Harte
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3f609e17b3
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Factored out the table-lookup approach to being a typer, and adjusted so as definitely to limit myself to positive offset table lookups.
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2017-07-21 21:18:51 -04:00 |
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Thomas Harte
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ef03c84b21
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More definitively removed the old sample-offset blending approach to filtering.
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2017-07-21 20:58:55 -04:00 |
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Thomas Harte
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163c0f1b44
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Ensured offset means exactly one thing.
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2017-07-21 20:58:17 -04:00 |
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Thomas Harte
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807e1d36d5
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Resolved signedness mismatch.
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2017-07-21 20:57:48 -04:00 |
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Thomas Harte
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5545cc8bab
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Merge branch 'master' into StricterWarnings
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2017-07-21 20:47:28 -04:00 |
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Thomas Harte
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d6e60c8e3a
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Merge pull request #151 from TomHarte/TZX
Adds partial TZX file format support
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2017-07-21 20:47:08 -04:00 |
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Thomas Harte
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2d8e7e9f8b
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Removed reference to a parameter long-since dead.
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2017-07-21 20:46:25 -04:00 |
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Thomas Harte
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5b4c5b0cbf
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Avoided having two different variables named next_output_run.
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2017-07-21 20:46:08 -04:00 |
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Thomas Harte
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2471ef805b
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Fixed signed/unsigned comparison and potential negative table reference.
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2017-07-21 20:45:49 -04:00 |
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Thomas Harte
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2a7fc86b15
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Enabled stricter warnings.
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2017-07-21 20:44:35 -04:00 |
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Thomas Harte
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3c8bf52fb8
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Believing my 64kb memory map not currently to work, temporarily disabled reference to it in the static analyser.
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2017-07-21 20:43:56 -04:00 |
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Thomas Harte
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a026998682
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Marginally optimised set_offset to avoid resets when possible.
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2017-07-21 20:43:20 -04:00 |
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Thomas Harte
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06ea81fdb2
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Made sure that unrecognised waves don't block the symbol queue, and allowed any type of nonsense to be skipped before finding a byte.
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2017-07-21 20:23:26 -04:00 |
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Thomas Harte
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d69b1e2d11
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Switched parsing logic to looking only for upward zero crossings, that being my new understanding of the ROM.
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2017-07-21 19:39:38 -04:00 |
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Thomas Harte
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a3e0024980
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Chopped time accumulation out of the default Tape process because it's proving to be sufficiently expensive for a TZX as not to be worthwhile. Introduced a cheaper position capturing/restoring method.
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2017-07-21 18:55:03 -04:00 |
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Thomas Harte
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d9a2c32aca
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Made an attempt to obey the proper TZX rules on gaps, and to hit the common-clock-rate Time optimisation.
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2017-07-21 18:21:12 -04:00 |
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Thomas Harte
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e152ed2e61
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Made an attempt to avoid GCD costs when accumulating Times with a common clock rate (/divisor).
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2017-07-21 18:20:27 -04:00 |
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Thomas Harte
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9e975a46a2
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Mildly simplified syntax.
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2017-07-21 18:18:45 -04:00 |
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Thomas Harte
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70af075012
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Determined what appears to be an appropriate workaround for the ZX81 TZX that I've managed to obtain.
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2017-07-19 21:28:33 -04:00 |
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Thomas Harte
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44e5a03cf2
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Removed just-don't-power-the-tape approach to pausing and playing, in favour of being fully communicative.
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2017-07-19 19:21:27 -04:00 |
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Thomas Harte
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c8cee88e33
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Ensured that a stopped tape outputs a false level and took an extra safety check in instantiation.
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2017-07-18 22:49:11 -04:00 |
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Thomas Harte
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35296017b5
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Clarified meaning of is_high_ flag and ensured it is honoured properly.
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2017-07-17 21:36:05 -04:00 |
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Thomas Harte
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130d598ec9
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Corrected some minor out-of-style breaks, and ensured that the name of ZX81 files is returned.
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2017-07-17 19:52:54 -04:00 |
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Thomas Harte
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0350925c1e
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Started sketching out greater support. Mostly TODOs right now, but pulse sequence and pure tone are implemented. I probably also need at least the CSW block to hit everything you might see in a ZX80 or ZX81 tape. Then I can worry about the rest when I have a way to test them.
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2017-07-17 19:38:15 -04:00 |
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Thomas Harte
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94e3dd0d4f
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Merge branch 'master' into TZX
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2017-07-17 19:07:05 -04:00 |
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Thomas Harte
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5d44422230
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Merge pull request #152 from TomHarte/CSWLength
Corrects a false assumption about decompressed CSW size
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2017-07-17 19:06:43 -04:00 |
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Thomas Harte
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eafdd7dbd7
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Corrected decompressed size expectations: it may be up to five times the size of the number of waves, as waves are up to five bytes in length.
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2017-07-17 19:04:25 -04:00 |
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Thomas Harte
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127b584e79
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Ensured that resetting a TZX resets the is-at-end flag.
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2017-07-17 07:52:28 -04:00 |
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Thomas Harte
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2179edc7fe
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Adjusted to allow the very first thing found to be data, and ensured that unrecognised symbols break files just as gaps do.
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2017-07-17 07:43:47 -04:00 |
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Thomas Harte
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9108495586
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Added a safety seek.
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2017-07-17 07:35:53 -04:00 |
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Thomas Harte
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fa617eac6b
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Spotted that pilot and data segments have different encodings — of course! — and attempted to adapt.
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2017-07-17 07:34:10 -04:00 |
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