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Commit Graph

2363 Commits

Author SHA1 Message Date
Thomas Harte
2ff157cf7a Switched CRTMachine over to use Cycles as an explicit statement of units, and followed through on the effects of that. 2017-07-22 22:17:29 -04:00
Thomas Harte
83628b285b Experimentally turned the 6502 into a clock receiver. No problem encountered. 2017-07-22 21:52:21 -04:00
Thomas Harte
1ba3f262a2 Sketched out a template for clock-receiving components to allow them to be implemented in terms of either half or whole cycles. 2017-07-22 21:46:50 -04:00
Thomas Harte
97334e10af Merge pull request #157 from TomHarte/Documentation
Brings some minor documentation improvements
2017-07-22 17:40:44 -04:00
Thomas Harte
31b4f8fa31 Added an expository TODO. 2017-07-22 17:40:06 -04:00
Thomas Harte
1bbb4cb478 Increased documentation. 2017-07-22 17:39:51 -04:00
Thomas Harte
d46da6ac9d Added documentation. 2017-07-22 17:31:12 -04:00
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