Thomas Harte
|
952a24f769
|
A quick hard-wiring of the OricTAP code to get the first file in a .tap correct, damn the rest, and I'm getting some on-screen feedback. Hooray!
|
2016-10-15 21:39:53 -04:00 |
|
Thomas Harte
|
a608bbebfb
|
Performed enough wiring to put the onus back onto OricTAP to do appropriate things.
|
2016-10-15 21:32:59 -04:00 |
|
Thomas Harte
|
6d7c3f6ac2
|
Factored out the now-sampling binary-level tape player from the Vic and connected it up to the Oric.
|
2016-10-15 21:21:18 -04:00 |
|
Thomas Harte
|
4f78d693e9
|
Reintroduced gap as a string of 1s, made an attempt to look up bit ordering. Still unclear on high/low versus low/high.
|
2016-10-11 08:07:51 -04:00 |
|
Thomas Harte
|
70f004efbb
|
This may be feeding bits in the wrong direction or calculting the wrong parity or doing something else amiss but should now be correct as to bytes.
|
2016-10-11 07:57:10 -04:00 |
|
Thomas Harte
|
df01c78039
|
It's a bit of a mess but this is probably close to appropriate for Oric TAP files.
|
2016-10-11 07:39:48 -04:00 |
|
Thomas Harte
|
4010f36238
|
Ensured tape-formatted PRGs reach a conclusion.
|
2016-09-29 19:12:26 -04:00 |
|
Thomas Harte
|
dbb758aaf1
|
Workaround for a weird bug that suddenly appears to manifest: gzgetc is returning the file name, not bytes from the file. Seems to be related to improper initialisation of the next field within the gzFile header. I can't immediately see where ZLib intends to do that so it's a bit mysterious. But the larger-than-8 readers could probably save time by reading in blocks anyway.
|
2016-09-17 22:01:25 -04:00 |
|
Thomas Harte
|
e3571e8b9e
|
Added insurance against an infinite loop should the tape be exhausted.
|
2016-09-12 22:22:23 -04:00 |
|
Thomas Harte
|
eeec516fa6
|
Implemented seeking on tapes, mucked about a bit more with the Commodore analyser, at least temporarily removed cropping from the Vic emulator.
|
2016-09-11 17:09:00 -04:00 |
|
Thomas Harte
|
1de6097f06
|
Shuffled C stuff out on top.
|
2016-09-08 21:08:03 -04:00 |
|
Thomas Harte
|
24251a2768
|
Negligible indentation fix.
|
2016-09-08 07:49:43 -04:00 |
|
Thomas Harte
|
01e5dae512
|
Threw in 300-baud support. Why not?
|
2016-09-08 07:48:20 -04:00 |
|
Thomas Harte
|
3e925e80a3
|
Added a field-filling constructor for pulses.
|
2016-09-08 07:41:44 -04:00 |
|
Thomas Harte
|
1e7b5330f5
|
More or less rewrote, to use a filled-per-chunk buffer of upcoming pulses rather than working them out as requests come. Which is more straightforward — all the code for a particular chunk goes in exactly one place — and much easier to extend. So threw in a provisional 0104 implementation.
|
2016-09-08 07:41:26 -04:00 |
|
Thomas Harte
|
d7d5f24aab
|
Attempted, at least, to insert a dummy byte as per the specification.
|
2016-09-06 21:51:04 -04:00 |
|
Thomas Harte
|
11850b872d
|
Sought to emulate 0111 as a longer 0110 to test a particular HQ UEF. Some progress. Not great.
|
2016-09-05 18:28:43 -04:00 |
|
Thomas Harte
|
21e5f407d8
|
I need to get a bit more definitive on naming but this gets all the way to setting a configuration upon an Electron.
|
2016-08-31 22:03:42 -04:00 |
|
Thomas Harte
|
963a479908
|
Made a quick first attempt at getting a file name from Acorn tape, failing terribly but at least formalising tapes being able to signal their end.
|
2016-08-29 21:53:06 -04:00 |
|
Thomas Harte
|
82c8459055
|
Minor tidying of namespace usage declarations.
|
2016-08-27 17:18:12 -04:00 |
|
Thomas Harte
|
c0402d0c2b
|
Gave tapes their own namespace.
|
2016-08-27 17:09:45 -04:00 |
|
Thomas Harte
|
8c333059a8
|
Turning this into a slog: gave UEF a more appropriate name, got as far as now having to decide what to do about ROMs as to structure. I guess they're machine specific, so specific classes?
|
2016-08-27 16:40:21 -04:00 |
|
Thomas Harte
|
73ce67bee8
|
Added some documentation of the intention here.
|
2016-08-19 11:04:59 -04:00 |
|
Thomas Harte
|
4edd1214f1
|
This has now successfully loaded its first PRG-as-a-tape.
|
2016-08-19 10:58:42 -04:00 |
|
Thomas Harte
|
2935848f35
|
Adopted header/header/data/data pattern. But still not complete joy.
|
2016-08-17 08:03:34 -04:00 |
|
Thomas Harte
|
e5523dbbed
|
This gets through loading the first(/only?) copy. I tried repeating it with a bit-flipped header, now I'm trying repeating the header with a different file type. More documentation searching to do, I guess.
|
2016-08-16 22:17:08 -04:00 |
|
Thomas Harte
|
1bca9aa2bb
|
Fixed parity: now calculated from the actual byte and works the other way around. The Vic now believes it is loading the actual program. So I guess bytes, headers and the lead-in is working.
|
2016-08-16 21:41:09 -04:00 |
|
Thomas Harte
|
dfe9fb83ef
|
This proves that bytes are being deposited properly. For the first 36 anyway, and with no announcement.
|
2016-08-16 21:09:50 -04:00 |
|
Thomas Harte
|
12f8aff65b
|
Lengths I'd taken seem to have been for dipoles, not single poles. So I just doubled the clock rate. Also I was producing each dipole as high then low, when they should probably be low then high. The Vic now at least recognises that something is happening on the tape.
|
2016-08-16 19:46:53 -04:00 |
|
Thomas Harte
|
3a23d5d8cf
|
Adjusted the check digit.
|
2016-08-15 22:44:36 -04:00 |
|
Thomas Harte
|
dbe47f3f45
|
I've obviously misunderstood something as, as far as I'm concerned, this should at least get me a 'LOADING'.
|
2016-08-15 22:40:05 -04:00 |
|
Thomas Harte
|
7994148f55
|
I'm starting to make a little headway, I think: this performs lead-ins and countdowns, though with no actual data or anything as helpful as that.
|
2016-08-15 22:10:53 -04:00 |
|
Thomas Harte
|
7e2b4554ea
|
This likely forms the Commodore dipoles correctly. It just stays stuck in leader tone forever is all.
|
2016-08-15 20:08:50 -04:00 |
|
Thomas Harte
|
38aec44d85
|
Made sufficient changes for the Vic itself to believe it can recast a PRG as a tape and insert it that way. So now the ball is in the court of: how the heck are Commodore tapes encoded?
|
2016-08-15 19:44:41 -04:00 |
|
Thomas Harte
|
3aa40212f3
|
Fixed minor documentation error; admitted that this class didn't invent the idea of a pulse.
|
2016-08-15 19:37:21 -04:00 |
|
Thomas Harte
|
ee2a7c9415
|
Added slightly to exposition, to match other formats.
|
2016-08-01 06:54:57 -04:00 |
|
Thomas Harte
|
2799a87218
|
Reduced possibility of overflow on LCM, improved commenting widely, removed one stale piece of G64 bootstrapping caveman stuff.
|
2016-08-01 06:04:55 -04:00 |
|
Thomas Harte
|
89a1881fef
|
Started turning the 1540 into an actual disk drive.
|
2016-07-29 11:03:09 -04:00 |
|
Thomas Harte
|
0e581c7607
|
Factored out the stuff of running a timed event loop from the TapePlayer.
|
2016-07-29 07:15:46 -04:00 |
|
Thomas Harte
|
e55db0cfe8
|
Made an attempt to eliminate creeping tape processing accuracy misses, which implied factoring out the GCM and LCD functions, which I then felt didn't really amount to signal processing.
|
2016-07-29 05:19:01 -04:00 |
|
Thomas Harte
|
9e3d6b762b
|
Sketched out the generic interface for a disk, documenting it and the tape interface while I'm here.
|
2016-07-10 08:54:39 -04:00 |
|
Thomas Harte
|
c306d705e1
|
Made a quick first attempt at all-the-way-through tape wiring for the Vic.
|
2016-06-26 19:43:09 -04:00 |
|
Thomas Harte
|
37ba42a52f
|
Factored out the stuff of playing a tape, started basic sketch of the Vic-related classes.
|
2016-06-26 19:03:57 -04:00 |
|
Thomas Harte
|
ee19417ded
|
Made an attempt quickly to implement parsing of the Commodore .TAP file format.
|
2016-06-25 16:09:32 -04:00 |
|
Thomas Harte
|
21ca1ef86b
|
Started attempting to clarify instance variable usage.
|
2016-03-12 23:19:10 -05:00 |
|
Thomas Harte
|
2b8fb5b615
|
Made an attempt to fix my 0114 implementation.
|
2016-02-20 23:13:58 -05:00 |
|
Thomas Harte
|
f7fc7cb932
|
Implemented some portion of 0114; ensured I'm safely skipping chunks in all cases.
|
2016-02-20 22:18:00 -05:00 |
|
Thomas Harte
|
ec3cccbb0d
|
Working towards HQ UEF support: fixed bug whereby writing to tape output would reset input pulse stepper; added support for chunk 0116 and approximate support for 0113.
|
2016-02-20 22:03:14 -05:00 |
|
Thomas Harte
|
2e3ba6bbb2
|
Removed some logging.
|
2016-02-07 14:42:40 -05:00 |
|
Thomas Harte
|
adc6838ba0
|
Continued slow migration of shader ownership to CRT. Attempted to start debugging the tape interface.
|
2016-01-27 21:35:57 -05:00 |
|
Thomas Harte
|
e65cd4cf06
|
Some data is marginally reaching the CPU from the tape.
|
2016-01-19 22:05:34 -05:00 |
|
Thomas Harte
|
832797182f
|
Update TapeUEF.cpp
Corrected chunk for which _tone_length is used, definition of a carrier tone chunk.
|
2016-01-19 18:59:10 -05:00 |
|
Thomas Harte
|
127684c590
|
With silence and high tone implemented, this may well hit a large proportion of existing files.
|
2016-01-18 19:45:14 -06:00 |
|
Thomas Harte
|
7d6214e078
|
This likely gets chunks 0100 and 0102 correct.
|
2016-01-18 19:37:36 -06:00 |
|
Thomas Harte
|
5a39e42413
|
Wired up enough such that some basic attempt at parsing a UEF occurs.`
|
2016-01-18 17:06:09 -06:00 |
|
Thomas Harte
|
2779f0e569
|
Statred working on support for at least the most fundamental file format.
|
2016-01-18 15:46:41 -06:00 |
|