Thomas Harte
|
33d16ae0cd
|
Fixes: individual static analysers reset tapes, for potential successors. The ZX81 file analyser no longer overruns its buffer upon receiving a file that is shorter than 11 bytes.
|
2017-07-12 21:34:08 -04:00 |
|
Thomas Harte
|
f09fe30af5
|
Attempted a full implementation of CSW. All in memory for now.
|
2017-07-12 21:23:59 -04:00 |
|
Thomas Harte
|
33eadb5549
|
Started taking further steps towards CSW support; reading the ZLib documentation is next.
|
2017-07-11 22:41:10 -04:00 |
|
Thomas Harte
|
368bff1a82
|
Added a shell class that will one day be able to parse CSW files, plus the logic and metadata to instantiate it when a CSW presents itself.
|
2017-07-10 21:43:58 -04:00 |
|
Thomas Harte
|
d853841dd5
|
Further lightened up my file-is-ZX81 check.
|
2017-07-10 20:44:13 -04:00 |
|
Thomas Harte
|
bcb7c27cc4
|
Given that I'm not racing this any more, turned the intended 1 second back into 1 second.
|
2017-07-08 19:21:33 -04:00 |
|
Thomas Harte
|
2f42874fd3
|
Another fix to deal with real-time fighting: allow 8 and 18 pulses to be recognised as 1s and 0s. That's because the hand-off from ROM routines to parsing may occur very shortly before the first pulse of a valid sequence, making it look like there's a ghost. A cleaner solution needs to be found, probably revolving around allowing parsers to be attached to tapes and therefore to run constantly.
|
2017-07-06 22:33:03 -04:00 |
|
Thomas Harte
|
84d0e9b4cd
|
Accept a pulse that begins exactly on seek_time as being found while seeking.
|
2017-07-06 22:31:45 -04:00 |
|
Thomas Harte
|
a53011f778
|
Extended intro and outro length because right now I'm racing this myself. Can return to normal once tape motor control is implemented.
|
2017-07-06 22:31:12 -04:00 |
|
Thomas Harte
|
919fc48cc5
|
Fixed dumb out-of-bounds access error.
|
2017-06-22 22:28:50 -04:00 |
|
Thomas Harte
|
87ee8450fe
|
Minor rejig: it's much more likely that something that can't be distinguished is a ZX81 program. TODO: some sort of BASIC token parsing, to be more confident.
|
2017-06-22 20:23:14 -04:00 |
|
Thomas Harte
|
52d9ddf9e5
|
Gave the binary tape player a more logical assignment of wave level to output level. Which miraculously appears to have been the issue with the ZX80/81 tape loading — the inconsistency of silences seems to have been the issue.
|
2017-06-21 22:13:24 -04:00 |
|
Thomas Harte
|
e6e6e4e62b
|
Adds an extra character for padding the ZX81 table.
|
2017-06-12 22:08:11 -04:00 |
|
Thomas Harte
|
626737b9fa
|
Started mucking about with some string conversion routines. Not finished yet.
|
2017-06-12 21:32:36 -04:00 |
|
Thomas Harte
|
22de481557
|
Made an attempt to get .p/.80 checked and as far as the emulated machine.
|
2017-06-12 19:41:59 -04:00 |
|
Thomas Harte
|
77aa3c187e
|
Rebranded ZX80O as ZX80O81P, with an eye to making it accept ZX81 .p files. Adjusted the initial selection part of the static analyser appropriately.
|
2017-06-11 21:38:32 -04:00 |
|
Thomas Harte
|
ee0283c985
|
Modified to use an in-memory buffer for file contents.
|
2017-06-11 21:35:09 -04:00 |
|
Thomas Harte
|
2c6414ce11
|
Adjusted to allow inspect_waves to swallow a gap before a bit if necessary, increasing the opportunities for its call.
|
2017-06-11 18:31:09 -04:00 |
|
Thomas Harte
|
e5aea632ee
|
Updated curly bracket placement.
|
2017-06-11 17:29:22 -04:00 |
|
Thomas Harte
|
c2bc9a8c62
|
Ensured no namespace collision in double-include guards.
|
2017-06-11 16:41:15 -04:00 |
|
Thomas Harte
|
256ba4028b
|
Rejigged to eliminate semi-duplication of the is-a-file test.
|
2017-06-08 21:52:13 -04:00 |
|
Thomas Harte
|
b07af2660d
|
Adjusted to make sure that the very end of a tape is properly measured.
|
2017-06-08 21:33:35 -04:00 |
|
Thomas Harte
|
bc0d70b2f7
|
Added: a shout-out when the tape has been exhausted.
|
2017-06-08 21:32:27 -04:00 |
|
Thomas Harte
|
c6e48dfd56
|
Given that a final gap is semantically part of describing tape contents, ensured one formally appears before declaring that the tape has ended.
|
2017-06-08 21:31:54 -04:00 |
|
Thomas Harte
|
c775db50ef
|
Ensured no out-of-bounds accesses.
|
2017-06-08 21:31:03 -04:00 |
|
Thomas Harte
|
ee4c8b5ad2
|
Ensured final byte plays out.
|
2017-06-08 19:51:49 -04:00 |
|
Thomas Harte
|
d8b76e31c3
|
Added and improved the is-this-ZX80-stuff test. It seems some bytes are going missing in the to->from tape conversion.
|
2017-06-08 19:49:18 -04:00 |
|
Thomas Harte
|
7e10c7f9d8
|
Relocated the ZX80/81 concept of a 'file' out from Tape into Data, given that it's an exact duplicate of memory.
|
2017-06-08 19:09:51 -04:00 |
|
Thomas Harte
|
c47128f433
|
Widened tolerances and ensured zero bits aren't prematurely discarded.
|
2017-06-07 17:50:03 -04:00 |
|
Thomas Harte
|
8aab9acc10
|
Eliminated use of the zero level; now definitively returns a low/high input.
|
2017-06-07 17:39:29 -04:00 |
|
Thomas Harte
|
dbd2944c13
|
Took an initial run at the ZX80/81 parser.
|
2017-06-07 17:27:05 -04:00 |
|
Thomas Harte
|
4603fa6f24
|
Extended explicitly to support a token of lookahead, which is pretty much what was on offer anyway. Also corrected instance variable names, as per better adoption of C++ norms.
|
2017-06-07 17:21:57 -04:00 |
|
Thomas Harte
|
60300851ea
|
Started sketching out a tape parser for ZX80 and '81 files. I think this'll help me to verify whether the .O input is working.
|
2017-06-07 10:12:13 -04:00 |
|
Thomas Harte
|
58312ea2b7
|
Updated to new standardisation on curly bracket placement.
|
2017-06-07 10:05:43 -04:00 |
|
Thomas Harte
|
cb534d8b85
|
Corrected comment.
|
2017-06-07 10:05:16 -04:00 |
|
Thomas Harte
|
4677cebf40
|
Rejigged to correct: spaces go after bits, not after bytes.
|
2017-06-06 18:29:15 -04:00 |
|
Thomas Harte
|
7399f3d798
|
Caveman debugging in place, it looks like this file is returning nonsense.
|
2017-06-06 18:18:55 -04:00 |
|
Thomas Harte
|
faeecf7665
|
Made sure that there's nothing but silence at the end of the tape, even if the .O file is too long.
|
2017-06-06 18:16:47 -04:00 |
|
Thomas Harte
|
8c1769f157
|
Made a quick attempt at serialising from ZX80 .O to waves.
|
2017-06-04 16:59:26 -04:00 |
|
Thomas Harte
|
655809517c
|
Ensured that there is a subclass of file that is entrusted to load .O/.80 files, and that the code routes such files to it, noting that it should consider whether a ZX80 is required.
|
2017-06-04 16:37:03 -04:00 |
|
Thomas Harte
|
5d91a2600d
|
Permitted ROM-style PRGs that are not a power-of-two in size, and added extra safety checks on loading data from a tape.
|
2017-05-08 22:15:35 -04:00 |
|
Thomas Harte
|
2807e3134f
|
Implemented speedy header finding. So that's half of it.
|
2017-05-07 20:32:48 -04:00 |
|
Thomas Harte
|
e01f3f06c8
|
Completed curly bracket movement.
|
2017-03-26 14:34:47 -04:00 |
|
Thomas Harte
|
f94f34f053
|
Made an attempt at read track. Which means process_input_bit can't just swallow syncs any more; it now reports them as tokens of type ::Sync.
|
2017-01-01 20:39:19 -05:00 |
|
Thomas Harte
|
b3c33d993a
|
Made an attempt to explain the requirements placed upon Disk subclasses that wish to support writing.
|
2016-12-31 15:30:48 -05:00 |
|
Thomas Harte
|
8eb21c6702
|
The "MFM...Byte"s aren't MFM-specific, they're relevant to both FM and MFM encoding. So renamed them. Also slimmed syntax within MFM.cpp mostly where emigration from the Acorn disk analyser had left a residue of lengthy namespace specification.
|
2016-12-31 15:25:11 -05:00 |
|
Thomas Harte
|
52b850a3f5
|
Quick extra: make sure parsed tracks don't overflow the 6400 byte space available in an MFM disk. Which might be better expressed as 6250?
|
2016-12-31 12:51:52 -05:00 |
|
Thomas Harte
|
cfbab1448c
|
Switched to a track parsing that disallows synchronisation values within sector contents.
|
2016-12-31 12:23:08 -05:00 |
|
Thomas Harte
|
12549ff412
|
Might as well get the file offset before entering the critical section; also moved the lock guard down more explicitly to group with the second set of actions.
|
2016-12-31 11:48:46 -05:00 |
|
Thomas Harte
|
6f0b5427e4
|
Made an attempt to avoid repetition of sync bytes.
|
2016-12-31 00:20:00 -05:00 |
|