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Author SHA1 Message Date
Thomas Harte
6bdde542c5 Edging towards functioning automatic tests, fixed right-period adjustment and slightly decreased searching cost while in the process of adding a test. 2016-12-20 07:52:14 -05:00
Thomas Harte
ec624eaab1 Made an attempt fully to implement PCMPatchedTrack. Which now requires tests. 2016-12-20 07:30:57 -05:00
Thomas Harte
1ef1f6ec69 Attempted to implemnt seek_to and to finish add_segment. Started doing a little of get_next_event but ran out of time for the day. 2016-12-19 21:46:02 -05:00
Thomas Harte
8f937ceac8 Made an attempt to come up with a data structure that actually makes sense (though perhaps this is textbook list rather than vector stuff? I guess it depends on the frequency I expect inserts to occur versus reads) and to implement inserts. Though the Periods aren't yet honoured. 2016-12-19 07:42:43 -05:00
Thomas Harte
1df478d250 Removed dead header file. 2016-12-18 23:04:16 -05:00
Thomas Harte
e081f224b6 Implemented a very basic PCMTrack test, nevertheless revealing an oversight in PCMSegmentEventSource related to improperly counting to the index hole if the final bit is set. Took that as a message that I should comment and document the event source. 2016-12-18 22:53:24 -05:00
Thomas Harte
a6354ebb01 Reimplemented PCMTrack to use PCMSegmentEventSource, eliminating code duplication. 2016-12-18 21:37:05 -05:00
Thomas Harte
f9a5595dad Added seeking tests, correcting such errors as uncovered. 2016-12-18 10:19:24 -05:00
Thomas Harte
3297f6d545 Made an attempt to implement seek_to on PCMSegmentEventSource, taking account of off-by-half counting. 2016-12-17 22:44:33 -05:00
Thomas Harte
3116a2cf4c Realised I was actually testing PCMSegmentEventSource, not PCMSegment; implemented a spread of tests; hence fixed PCMSegmentEventSource. 2016-12-17 21:47:13 -05:00
Thomas Harte
254cc41fd6 Made an attempt to separate and isolate the stuff of creating flux events from a PCMSegment, eventually to factor that out of PCMTrack and make it available also to PCMPatchedTrack. 2016-12-17 21:13:57 -05:00
Thomas Harte
313db75303 Ensured the patchable track owns its underlying track. 2016-12-17 18:17:22 -05:00
Thomas Harte
3017062e89 Maybe TDD is the way to get over my activity block on this thing? Fixed the existing ArrayBuilder tests so that the tests target builds again, added an extremely trivial PCMTrack test, heading towards PCMPatchedTrack tests. 2016-12-17 17:05:49 -05:00
Thomas Harte
f1a08b7ab5 Opted to pass times by reference and added enough to PCMPatchedTrack that it could start being used by the disk controller, albeit that it doesn't work. 2016-12-17 16:26:45 -05:00
Thomas Harte
dc08a23ceb This is going to be a slow walk, I think. This class attempts to be the scratchpad which will hold in-memory track modifications. 2016-12-16 19:20:38 -05:00
Thomas Harte
1e757d1039 Merge branch 'master' into DiskWrites 2016-12-15 19:53:39 -05:00
Thomas Harte
ea1b3d447b Merge pull request #85 from TomHarte/ElectronRefactor 
Applies a healthy cleaning to the Electron implementation
 2016-12-15 19:53:07 -05:00
Thomas Harte
63107cd492 Tidied, very slightly. 2016-12-15 19:49:25 -05:00
Thomas Harte
a555c5762a Rearranged code, hopefully into a more logical grouping. 2016-12-15 19:47:04 -05:00
Thomas Harte
4a7ddaf2e9 Added documentation and a quick note to self. 2016-12-15 19:43:04 -05:00
Thomas Harte
f61176cd7d Reinstituted something of the don't-do-pixel-work-until-an-affecting-write-occurs optimisation. 2016-12-15 19:20:14 -05:00
Thomas Harte
c1c70a767a Attempted fully to reinstate proper timing. 2016-12-15 18:52:16 -05:00
Thomas Harte
0326316bb8 Reinstated whole-frame counting. Thereby to reinstate proper interrupts. 2016-12-15 18:09:49 -05:00
Thomas Harte
b58b11fc93 Switched to a table-based dispatch of line-by-line actions, primarily to simplify. 2016-12-15 18:07:46 -05:00
Thomas Harte
fd541e1142 An early draft; dealing with the issue that not all cycles are necessarily consumed in a single call. Incomplete; broken. Committing for cross-machine visibility. 2016-12-12 08:01:10 -05:00
Thomas Harte
be7e05e109 Started attempting to move total responsibility for display-related interrupts and RAM timing into the video. 2016-12-11 18:34:49 -05:00
Thomas Harte
c5cf8d9531 Ensured the video subsystem correctly handles requests to run over a frame boundary. 2016-12-11 16:17:51 -05:00
Thomas Harte
52028432e1 Restored some semblance of output. 2016-12-10 22:19:10 -05:00
Thomas Harte
0aae1bd1ef Fixed calculation of termination cycle. 2016-12-10 21:35:41 -05:00
Thomas Harte
c43e481a33 Started factoring video out of the Electron. 2016-12-10 21:07:52 -05:00
Thomas Harte
54b5056c74 Merge branch 'master' into DiskWrites 2016-12-10 19:37:48 -05:00
Thomas Harte
0653770c63 Merge pull request #84 from TomHarte/OricColour 
Switches to using the original Oric colour ROM to generate Oric composite values
 2016-12-10 19:37:17 -05:00
Thomas Harte
e62be03673 Removed endianness assumption. 2016-12-10 19:10:33 -05:00
Thomas Harte
34d213dec4 Decreased Y resolution, again also hopefully temporarily. 2016-12-10 15:35:38 -05:00
Thomas Harte
81a102d951 Upped intermediate buffer size, at least temporarily, while I look for the source of the interference patterns I'm seeing. 2016-12-10 15:20:10 -05:00
Thomas Harte
a5683dfb21 Removed now untrue comment. 2016-12-10 15:19:48 -05:00
Thomas Harte
0e71802b92 Reduced Oric video to single nibble constants. Removed attempt at asynchronous flush as no longer required. 2016-12-10 14:17:46 -05:00
Thomas Harte
580f347727 Fixed Oric SCART mode by having it change what it's giving to the CRT based on which shader it knows will be active. 2016-12-10 13:55:56 -05:00
Thomas Harte
a549fd1ecc Introduced the ability simply to piggy-back off the CRT's natural phase for the colour burst, thereby eliminating a couple of redundant independent attempts in the Oric and Electron. 2016-12-10 13:42:34 -05:00
Thomas Harte
e359441e2f Added a readme.txt for the omitted Oric ROMs. 2016-12-09 22:18:11 -05:00
Thomas Harte
6cdd41e5a9 Added direct use of the colour ROM, uploading 16 bits per pixel to contain the entire ROM composite wave. 2016-12-09 22:17:10 -05:00
Thomas Harte
3b5962b171 This is an initial attempt at using the actual Oric colour ROM values for composite video generation. 2016-12-09 20:01:27 -05:00
Thomas Harte
c4041b06a8 This'll do as a write interface, won't it? 2016-12-07 22:19:20 -05:00
Thomas Harte
46ebae7e4b Merge pull request #83 from TomHarte/InterruptLine 
Corrects interrupt line handling of the WD and Microdisc
 2016-12-06 21:21:35 -05:00
Thomas Harte
c304db0f5a Deintegrated the busy flag and the interrupt request line, as the latter is reset by status reads. Which also means I can start reporting the WD INTRQ line status directly from the Microdisc. That appears to be correct, rather than honouring the Microdisc IRQ select there. 2016-12-06 21:16:29 -05:00
Thomas Harte
4d3bdf8c7c Fixed failure to initialise the Microdisc flag if loading a tape. 2016-12-06 20:29:05 -05:00
Thomas Harte
0300ae4ec0 Merge pull request #82 from TomHarte/VideoRacing 
Pulls the texture builder into flush/submit orthodoxy
 2016-12-06 19:13:05 -05:00
Thomas Harte
5216dda675 Added some brief extra exposition to the texture builder, cut all internal tex_x/y and source_divider stuff from the CRT. 2016-12-06 19:08:55 -05:00
Thomas Harte
33d52bb573 Ensured no over-moving. 2016-12-06 19:02:18 -05:00
Thomas Harte
4ff33254e1 Sought to shift locking back up to the CRT. And to be a bit more RAII-ish. 2016-12-06 18:48:30 -05:00