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Commit Graph

2356 Commits

Author SHA1 Message Date
Thomas Harte
825b38850e Removes non-idiomatic line break. 2017-07-22 17:30:58 -04:00
Thomas Harte
8755824c64 Added some documentation. 2017-07-22 17:25:53 -04:00
Thomas Harte
b3d3fd70aa Merge pull request #156 from TomHarte/P81
Adds support for the P81 file format
2017-07-22 16:03:38 -04:00
Thomas Harte
6633537fb8 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. 2017-07-22 16:02:25 -04:00
Thomas Harte
4dec9716c4 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
2017-07-22 15:43:50 -04:00
Thomas Harte
313b36944f 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. 2017-07-22 15:41:33 -04:00
Thomas Harte
456fdda6c2 Ensured that the mark_end step can't overwrite another recognised symbol. 2017-07-22 15:40:22 -04:00
Thomas Harte
a6b239698c Merge pull request #153 from TomHarte/StricterWarnings
Enabled stricter compiler warnings
2017-07-21 22:28:55 -04:00
Thomas Harte
92d1dd9a4a Attempts to eliminate all remaining type variations. 2017-07-21 21:54:05 -04:00
Thomas Harte
45ec5f8eab Eliminated implicit sign conversion. 2017-07-21 21:53:27 -04:00
Thomas Harte
1d01acce06 Fixed differing types of loop variables and targets. 2017-07-21 21:53:05 -04:00
Thomas Harte
be750ee427 Eliminated all dangling implicit signedness conversions. 2017-07-21 21:52:37 -04:00
Thomas Harte
dddb30477b Used a different inner-loop variable, for clarity. 2017-07-21 21:52:08 -04:00
Thomas Harte
37459a3ebc Fixed parameter shadowing. 2017-07-21 21:51:18 -04:00
Thomas Harte
449c33ee8b Signedness fixes. 2017-07-21 21:28:04 -04:00
Thomas Harte
2b5d0877a8 Adjusted parameter name to match documentation. I think it's a carry-over from before I was passing the whole event along. 2017-07-21 21:27:50 -04:00
Thomas Harte
6d5807ec4b Fixed sign and ensured that the DataFromString implementation is of the thing declared in the header. 2017-07-21 21:24:28 -04:00
Thomas Harte
64865b3f41 Signedness fixes. 2017-07-21 21:23:34 -04:00
Thomas Harte
53f0e1896b Made delay_time_ unsigned for safe comparison. 2017-07-21 21:21:23 -04:00
Thomas Harte
aaa60dab12 Fixed signedness of index. 2017-07-21 21:21:01 -04:00
Thomas Harte
9b72c445a7 Fixed indexing type. 2017-07-21 21:19:46 -04:00
Thomas Harte
3f609e17b3 Factored out the table-lookup approach to being a typer, and adjusted so as definitely to limit myself to positive offset table lookups. 2017-07-21 21:18:51 -04:00
Thomas Harte
ef03c84b21 More definitively removed the old sample-offset blending approach to filtering. 2017-07-21 20:58:55 -04:00
Thomas Harte
163c0f1b44 Ensured offset means exactly one thing. 2017-07-21 20:58:17 -04:00
Thomas Harte
807e1d36d5 Resolved signedness mismatch. 2017-07-21 20:57:48 -04:00
Thomas Harte
5545cc8bab Merge branch 'master' into StricterWarnings 2017-07-21 20:47:28 -04:00
Thomas Harte
d6e60c8e3a Merge pull request #151 from TomHarte/TZX
Adds partial TZX file format support
2017-07-21 20:47:08 -04:00
Thomas Harte
2d8e7e9f8b Removed reference to a parameter long-since dead. 2017-07-21 20:46:25 -04:00
Thomas Harte
5b4c5b0cbf Avoided having two different variables named next_output_run. 2017-07-21 20:46:08 -04:00
Thomas Harte
2471ef805b Fixed signed/unsigned comparison and potential negative table reference. 2017-07-21 20:45:49 -04:00
Thomas Harte
2a7fc86b15 Enabled stricter warnings. 2017-07-21 20:44:35 -04:00
Thomas Harte
3c8bf52fb8 Believing my 64kb memory map not currently to work, temporarily disabled reference to it in the static analyser. 2017-07-21 20:43:56 -04:00
Thomas Harte
a026998682 Marginally optimised set_offset to avoid resets when possible. 2017-07-21 20:43:20 -04:00
Thomas Harte
06ea81fdb2 Made sure that unrecognised waves don't block the symbol queue, and allowed any type of nonsense to be skipped before finding a byte. 2017-07-21 20:23:26 -04:00
Thomas Harte
d69b1e2d11 Switched parsing logic to looking only for upward zero crossings, that being my new understanding of the ROM. 2017-07-21 19:39:38 -04:00
Thomas Harte
a3e0024980 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. 2017-07-21 18:55:03 -04:00
Thomas Harte
d9a2c32aca Made an attempt to obey the proper TZX rules on gaps, and to hit the common-clock-rate Time optimisation. 2017-07-21 18:21:12 -04:00
Thomas Harte
e152ed2e61 Made an attempt to avoid GCD costs when accumulating Times with a common clock rate (/divisor). 2017-07-21 18:20:27 -04:00
Thomas Harte
9e975a46a2 Mildly simplified syntax. 2017-07-21 18:18:45 -04:00
Thomas Harte
70af075012 Determined what appears to be an appropriate workaround for the ZX81 TZX that I've managed to obtain. 2017-07-19 21:28:33 -04:00
Thomas Harte
44e5a03cf2 Removed just-don't-power-the-tape approach to pausing and playing, in favour of being fully communicative. 2017-07-19 19:21:27 -04:00
Thomas Harte
c8cee88e33 Ensured that a stopped tape outputs a false level and took an extra safety check in instantiation. 2017-07-18 22:49:11 -04:00
Thomas Harte
35296017b5 Clarified meaning of is_high_ flag and ensured it is honoured properly. 2017-07-17 21:36:05 -04:00
Thomas Harte
130d598ec9 Corrected some minor out-of-style breaks, and ensured that the name of ZX81 files is returned. 2017-07-17 19:52:54 -04:00
Thomas Harte
0350925c1e 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. 2017-07-17 19:38:15 -04:00
Thomas Harte
94e3dd0d4f Merge branch 'master' into TZX 2017-07-17 19:07:05 -04:00
Thomas Harte
5d44422230 Merge pull request #152 from TomHarte/CSWLength
Corrects a false assumption about decompressed CSW size
2017-07-17 19:06:43 -04:00
Thomas Harte
eafdd7dbd7 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. 2017-07-17 19:04:25 -04:00
Thomas Harte
127b584e79 Ensured that resetting a TZX resets the is-at-end flag. 2017-07-17 07:52:28 -04:00
Thomas Harte
2179edc7fe Adjusted to allow the very first thing found to be data, and ensured that unrecognised symbols break files just as gaps do. 2017-07-17 07:43:47 -04:00