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1102 Commits

Author SHA1 Message Date
Thomas Harte
8222aac9e3 Added an official declaration of support for ZX81 files. 2017-06-11 21:40:41 -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
8116f85479 Allowed the static analyser to specify a ZX80 or 81, and a memory model. Neither is respected yet in the machine. 2017-06-11 19:12:20 -04:00
Thomas Harte
50be3a24fe Sought to ensure that Mode 1 interrupts aren't happening early. Which they seem not to be. 2017-06-11 13:30:08 -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
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
8c66e1d99d Factored out ZX80/81 video and rejigged to ensure it will keep ticking over irrespective of whether the machine is supplying data. 2017-06-06 17:53:23 -04:00
Thomas Harte
cc4cb45e9d Implemented keyboard input and ensured that the signal generated is marked as composite, putting the colour-suppression ball into the CRT's court. 2017-06-06 09:25:18 -04:00
Thomas Harte
c485c460f7 Imported the ZX80 and 81 system ROMs (though not publicly), added enough code to post their contents into C++ world. 2017-06-04 18:08:35 -04:00
Thomas Harte
b0a7c58287 Fixed project to point to the XIB I actually want to keep; fixed that XIB to have the correct contents. 2017-06-04 17:57:37 -04:00
Thomas Harte
d2637123c4 Added necessary support to get as far as an empty window when attempting to load a piece of ZX80 software. 2017-06-04 17:55:19 -04:00
Thomas Harte
02b7c3d1b0 Added the necessary wiring to get into a ZX80/81-oriented part of the static analyser, which could in principle post a ZX80 target. 2017-06-04 17:04:06 -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
2190f60a89 Reinstated manual-by-stealth secondary usage of the Zexall test as a benchmarking tool. 2017-06-04 15:46:35 -04:00
Thomas Harte
0eebfdb4cc Expanded emulation of memptr, though still incomplete. Reverted zexall tests to zexdoc. Will probably leave memptr until I've an emulated machine as test suites seem to exist, but they're machine-dependant, so figuring out how to isolate them from an architecture will be a lot easier if and when I have functioning machines. 2017-06-04 15:39:37 -04:00
Thomas Harte
7811374b0f Started sneaking in memptr emulation, hopefully to get to a working BIT (hl). 2017-06-04 15:07:07 -04:00
Thomas Harte
87095b0578 Undid consciously discard for bits 3 and 5 in the FUSE tests. Back to 100 failures. 2017-06-04 14:04:26 -04:00
Thomas Harte
b642d9f712 Eliminates the 6502's specialised jam handler in favour of the generic trap handler, and simplifies the lookup costs of that as it's otherwise doubling execution costs. 2017-06-03 21:54:42 -04:00
Thomas Harte
fd6623b5a5 Attempted to bring a common hierarchy to the Z80 and 6502 test machines, particularly with a view to eliminating the special-case Jam stuff on the 6502. 2017-06-03 21:22:16 -04:00
Thomas Harte
b304c3a4b9 Eliminated the 6502's reliance on the micro-op scheduler. 2017-06-03 20:30:07 -04:00
Thomas Harte
b3da16911f Tweaked timing of mode 0, per contradictory information. Wrote a failing test of mode 2. 2017-06-03 18:42:54 -04:00
Thomas Harte
e52892f75b Added a test of interrupt mode 1. 2017-06-03 18:16:13 -04:00
Thomas Harte
8c41a0f0ed Added a test to confirm interrupts are disabled, and a response to the interrupt cycle within the all-RAM machine. 2017-06-03 17:53:44 -04:00
Thomas Harte
3e9212aaff Plumbed through to allow interrupt tests, wrote an NMI test, corrected the error revealed. 2017-06-03 17:41:45 -04:00
Thomas Harte
d14902700a Minor syntax and wiring fixes. 2017-06-01 22:33:05 -04:00
Thomas Harte
c95c32a9fe Implemented the reset line program and disabled fictitious automatic power-on reset for the Z80 test machine. 2017-06-01 22:31:04 -04:00
Thomas Harte
494ce073b5 Tests having been fixed by instating proper Z80 cycle counting, removed caveman logging. 2017-05-31 19:58:57 -04:00
Thomas Harte
5ff73faf48 Ensured Zexall can pass. 2017-05-31 19:55:06 -04:00
Thomas Harte
2f7f11e2e5 Added diagnosis props. 2017-05-31 06:54:25 -04:00
Thomas Harte
5119997122 Made an attempt, flawed so far, to find a neat way for processor subclasses to offer bus management as an inline function. 2017-05-30 22:41:23 -04:00
Thomas Harte
7bddd294c9 Resolved an unpredictable conditional and temporarily disabled the Zexalltest as part of the default suite, since it takes so long to run. 2017-05-30 21:03:02 -04:00
Thomas Harte
244b5ba3c2 Added a proper termination condition for Zexall and, for now, a Mhz counter. 2017-05-30 18:32:38 -04:00
Thomas Harte
960de7bd7b Marginally reduced test machine costs based on usage. 2017-05-30 11:59:07 -04:00
Thomas Harte
c6185baa99 Fixed R incrementation and attempted to make the status flags cheaper to write to. 2017-05-29 22:23:19 -04:00
Thomas Harte
4d4695032c Discovered that Zexall is just really slow. Disabled the address sanitiser, and started working towards a verifiable end. 2017-05-29 21:46:00 -04:00
Thomas Harte
6d22f6fcd5 Having decided the bus operation error on 10 is probably in the test cases, decided to allow myself to skip that one comparison. Back to zero failing cases, and with no more useful information to derive from the FUSE test set for the time being. 2017-05-29 17:17:17 -04:00
Thomas Harte
8bfaa487ce Improved logging of bus operations and corrected placement of the OUT step in that repetition group; was otherwise outputting the wrong side of the B adjustment and therefore to the wrong port (if interpreted as 16 bit). 2017-05-29 17:13:24 -04:00
Thomas Harte
267b2add9a Adjusted for where FUSE nominally places timestamps. Down to 92 failures. 2017-05-29 16:44:07 -04:00
Thomas Harte
d290e3d99e Corrected simple logging error. Which mysteriously moves me all the way up to 117 failures (!) 2017-05-29 16:35:00 -04:00
Thomas Harte
a6a4c5a936 Made an attempt to introduce checking of bus activity against the FUSE tests. Appears to suggest 54 new failures. 2017-05-29 15:57:27 -04:00
Thomas Harte
ed7b07c8b1 Made an attempt to implement HALT as an operation that merely leaves the PC in place, adding the Z80's output line. Included that flag in FUSE tests. Discovered that it does not think that HALT acts that way. Which is probably correct. 2017-05-29 11:54:27 -04:00
Thomas Harte
d83dd17738 [DD/FD]36 turns out to be a timing error: offset calculation overlaps with value fetch. So the FUSE test was cutting off my implementation early. Fixed. 2017-05-29 11:40:56 -04:00
Thomas Harte
9ade0dcae3 One failure was just PUSH AF due to throwing away the 5 & 3 flags at the start. Switched to throwing them away at comparison. 2017-05-29 11:06:23 -04:00
Thomas Harte
a329d85697 Instituted memory value checks, flushing out seven new failures. 2017-05-29 11:01:45 -04:00
Thomas Harte
c322410783 Corrected CP[I/D]R termination logic; all tests now passing to the extent of interrogation. 2017-05-29 10:52:54 -04:00
Thomas Harte
b67331e018 Fixing the OUT repetition group reduces the code to one failing test. 2017-05-29 10:48:53 -04:00
Thomas Harte
ad56a9215c Implemented IN[I/D]x. 18 failures remaining. 2017-05-29 10:12:33 -04:00
Thomas Harte
c56a5344b9 Implemented CP[I/D]x. 2017-05-29 08:54:00 -04:00
Thomas Harte
409c82ce73 Implemented RLD and RRD. 34 failures remaining. 2017-05-28 16:46:27 -04:00
Thomas Harte
6e83b7d6df Attempted to add a proper exit condition for Zexall. 2017-05-28 15:13:47 -04:00
Thomas Harte
5a4d448cc1 Corrected logical flags; now down to 68 failures, all of them on the ED page. 2017-05-28 15:09:58 -04:00
Thomas Harte
6b66c8f304 Implemented inputs and outputs, determined how to answer port requests to please FUSE and hence reduced failures to 84. 2017-05-28 14:50:51 -04:00
Thomas Harte
035df316aa FUSE seems to have inconsistent ideas about where b3 and b5 come from in more-complicated BIT instructions. So I'm not testing them for now. Within that reality, reduced to 102 failures. 2017-05-27 23:54:53 -04:00
Thomas Harte
c7cb47a1d8 Readded and then disabled my temporary one-test-only patch. Failures are currently at 237. 2017-05-27 21:10:25 -04:00
Thomas Harte
98423c6e41 Accepted FUSE's view of bits 3 & 5 from BIT and RES, reducing to 623 issues. 2017-05-27 16:19:15 -04:00
Thomas Harte
33c3fa21e3 Fixed (HL)/(In + d) CB page modify instructions. Reducing failures to 672. 2017-05-27 15:54:24 -04:00
Thomas Harte
9bc2b48d9b Found a form I like for indexed addressing, applying it only where obvious for now. Which eliminates more than a couple of hundred of remaining failures. 2017-05-26 23:23:33 -04:00
Thomas Harte
e4e71a1e5f Switched back to descriptive failures, but put a cap on them. 2017-05-25 21:08:24 -04:00
Thomas Harte
fba5af280e Shortened failure message, at least for now. 2017-05-25 21:05:47 -04:00
Thomas Harte
2cadc706e2 Now runs FUSE tests, albeit testing only a subset of the results. But enough to get started. 2017-05-25 21:00:33 -04:00
Thomas Harte
3c6f63abcc Started towards running the FUSE tests. Just need to deal with the memory segments. 2017-05-25 19:12:59 -04:00
Thomas Harte
00cd7e7e9c After hitting my head against the wall of trying to use [NS]Scanner as a parser some more, have given up and transcoded the two tests files to JSON. 2017-05-25 18:20:13 -04:00
Thomas Harte
055c860b43 Sealed off RegisterState as immutable, and started trying to parse the .expected file. 2017-05-23 22:32:36 -04:00
Thomas Harte
454c8628c3 Implemented an additional constructor for RegisterStates, pulling it out into file-level scope and implementing Equatable. 2017-05-23 22:05:33 -04:00
Thomas Harte
a23a6db4d6 Tidied up, creating a holder for RegisterState and giving it deserialisation logic. This makes sense because a register state will also need to be taken from the outputScanner, and from the machine. 2017-05-23 08:13:24 -04:00
Thomas Harte
6575091a78 Fixed Z80's ownership of its fetch-decode-execute program, its habit of scheduling invalidly when hitting an unrecognised operation and the test machine's habit of dereferencing invalidly. 2017-05-22 21:50:34 -04:00
Thomas Harte
9e25d014d2 Made an attempt to log bus activity for comparison with FUSE results. 2017-05-22 19:49:38 -04:00
Thomas Harte
41d5dd8679 Added a memory access delegate to the Z80 all-ram processor, to allow access patterns to be captured. 2017-05-22 19:24:11 -04:00
Thomas Harte
22afa509ca Got to a parsing and towards an attempt to run FUSE tests. 2017-05-22 19:14:46 -04:00
Thomas Harte
3fb3cc8269 Got explicit about encodings. 2017-05-21 22:53:06 -04:00
Thomas Harte
e3e461d7cb Added a test class for running the FUSE tests. With nothing much in it. 2017-05-21 22:49:24 -04:00
Thomas Harte
c16fccb317 Fixed file names. 2017-05-21 22:43:07 -04:00
Thomas Harte
b9cffdf2bd Imported the FUSE tests. 2017-05-21 22:42:20 -04:00
Thomas Harte
01a064dd63 Added an empty ED page. 2017-05-20 17:29:30 -04:00
Thomas Harte
d910405648 Added enough infrastructure to be able to react to the two CP/M calls this cares about. 2017-05-19 21:53:39 -04:00
Thomas Harte
62b432c046 Added the concept of a trap handler to the all-RAM processor and exposed it via the test Z80 classes. 2017-05-19 21:20:28 -04:00
Thomas Harte
11d05fb3b8 Expanded a little on operations, added an implementation or two. 2017-05-19 19:18:35 -04:00
Thomas Harte
58efca835f Sought to add a further opcode. 2017-05-18 22:53:43 -04:00
Thomas Harte
da6e520b91 Merge branch 'master' into Z80 2017-05-18 22:30:51 -04:00
Thomas Harte
9398b6c2c8 Unable to differentiate, decided to map a Mac shift key to both Oric shifts. 2017-05-18 22:25:59 -04:00
Thomas Harte
a3dafa9056 Abbreviated uses of enumerations. 2017-05-17 21:44:08 -04:00
Thomas Harte
64d6ee1be5 Adjusted slightly to adapt to latest Swift warnings. 2017-05-17 07:49:48 -04:00
Thomas Harte
1378ab7278 Ensured initial program counter and stack pointer are correct for Zexall, fixed the Z80 to use a compile-time polymorphic call for bus access. 2017-05-17 07:36:06 -04:00
Thomas Harte
87a021ec2d Made further attempt to get as fas as having the Z80 attempt to do something. 2017-05-16 22:19:40 -04:00
Thomas Harte
189317b80c Added enough of a Z80 test machine to bridge up into Swift. 2017-05-16 22:05:42 -04:00
Thomas Harte
4f0775cc7c Imported the Zexall.com tester, as a first thing to throw at the Z80 to be. 2017-05-16 21:37:09 -04:00
Thomas Harte
7190f927b7 Factored out the stuff that both all-RAM processors would share, rather than duplicating it. 2017-05-16 21:28:17 -04:00
Thomas Harte
d559d8b901 Continued edging towards getting the absolute basics of a testable Z80, for test-driven development. Corrected old-fashioned instance naming issues with the corresponding 6502 class and removed an unnecessary source file while at it. 2017-05-16 21:19:17 -04:00
Thomas Harte
df80c37adb Renamed TestMachine to TestMachine6502 since there's going to be multiple of them. 2017-05-15 08:18:57 -04:00
Thomas Harte
0808e9b6fb Pulled the 6502 into a CPU namespace, making it an instance of something that has micro-opcodes and schedules them, and factoring out the formulation of a register pair. 2017-05-14 22:08:15 -04:00
Thomas Harte
b81a2cc273 First tentative steps towards adding a Z80 implementation. 2017-05-14 17:46:41 -04:00
Thomas Harte
8e35e913bb Formally withdrew the 'load automatically' option for the Vic, having removed that option elsewhere. 2017-05-14 16:59:24 -04:00
Thomas Harte
2edf73908c Temporarily disabled the existing fast loading implementation in pursuit of another, and started trying to correct the lack of connection between the userport VIA and the tape drive. 2017-05-06 22:00:12 -04:00
Thomas Harte
92a8b68859 Dumped Mach-specific test-and-set in favour of ordinary C11. 2017-04-15 21:41:59 -04:00
Thomas Harte
bdd432fe1d Added an ugly workaround for the empirical sound shutdown issues. 2017-03-26 20:28:04 -04:00
Thomas Harte
e01f3f06c8 Completed curly bracket movement. 2017-03-26 14:34:47 -04:00
Thomas Harte
031a68000a Added a class to contain the Pitfall 2 pager and a skeleton of initial work. 2017-03-18 22:08:47 -04:00
Thomas Harte
c3d82f88a5 Tidied up and commented on the Activision stack implementation. 2017-03-18 21:01:58 -04:00
Thomas Harte
c033bad0b9 Here's MNetwork! 2017-03-18 20:51:49 -04:00
Thomas Harte
c31d85f820 Re-emplaced the MegaBoy. Also cut detritus from the main Atari header. 2017-03-18 19:02:34 -04:00
Thomas Harte
217fbf257e CBS RAM Plus returns. 2017-03-18 18:56:20 -04:00
Thomas Harte
0b611a14b9 Tigervision paging returns. 2017-03-18 18:50:13 -04:00
Thomas Harte
df6861c9dc Parker Bros paging is back. 2017-03-18 18:21:01 -04:00
Thomas Harte
a4cd12394e Reinstated the Activision stack pager. 2017-03-18 18:03:48 -04:00
Thomas Harte
bb3daaa99b Sought to reintroduce the Atari 8k paging scheme, at the same time deciding to do away with the copy and paste of holding on to ROM data. 2017-03-18 15:04:01 -04:00
Thomas Harte
14a76af0d3 Started trying to float out bus control to cartridges. 2017-03-17 20:28:07 -04:00
Thomas Harte
a6897ebde0 Added an attempt to distinguish the MegaBoy (now with proper capitalisation) and a test for it. 2017-03-13 20:43:12 -04:00
Thomas Harte
582da14a14 Added an enumerated type and detection of Pitfall 2. 2017-03-13 08:15:36 -04:00
Thomas Harte
8e147444d5 Added a readme, as is traditional for folders I'm excluding from Git. 2017-03-12 22:16:12 -04:00
Thomas Harte
2c07cce282 Had the wrong paging scheme listed for Robot Tank and Thwocker. Better to get this right before trying to come up with a test for the Activision stack scheme. 2017-03-12 21:03:10 -04:00
Thomas Harte
597bd97b01 Corrected two more table errors. 2017-03-12 15:46:25 -04:00
Thomas Harte
38de5300e5 Elevator Action seemingly uses a Super Chip. 2017-03-12 15:43:42 -04:00
Thomas Harte
146f3ea0f5 Fixed: Crystal Castles is 16kb. 2017-03-12 15:39:07 -04:00
Thomas Harte
78213f1e95 Fixed a couple more table entries, introduced per-size tests (plus a catch-all), to speed up the development/testing cycle. 2017-03-12 15:35:36 -04:00
Thomas Harte
de347ad7c8 Improved CBS RAM Plus and Super Chip detection exclusion, reducing error count to 15. 2017-03-12 14:03:17 -04:00
Thomas Harte
a4bba8a92e Made a couple of lookup table fixes and corrected RAM region detection windows; failures now down to 19. 2017-03-11 23:18:30 -05:00
Thomas Harte
fcacfc2726 Tidied up spacing, slightly. 2017-03-11 23:01:42 -05:00
Thomas Harte
bab464e765 I'm far from confident, but this should reduce the deviations close to those that result from mistakes by the static analyser, rather than table errors. 2017-03-11 22:58:11 -05:00
Thomas Harte
2879763c34 Reduced to 84 failures through more accurate tabulation. 2017-03-11 21:52:52 -05:00
Thomas Harte
ea2ea30193 Fleshed entire table out with most common values. Exceptions now to fix. 2017-03-11 21:11:25 -05:00
Thomas Harte
608569cc48 Typed out all the 'A's that I am aware of. So about 5% done. 2017-03-11 20:58:38 -05:00
Thomas Harte
c7e973aab4 Extended test set a little, corrected current failures. 2017-03-11 20:51:25 -05:00
Thomas Harte
443d57bc32 Slimmed output and added first six tests. Acid Drop fails since I'm not yet declaring Atari 16k and Atari 32k. 2017-03-11 20:43:19 -05:00
Thomas Harte
57ec756f5b Started speccing out a unit test for Atari ROM analysis. 2017-03-11 20:33:58 -05:00
Thomas Harte
b193248056 Ensured that queue is not touched at all outside of the critical section. 2017-03-11 18:17:09 -05:00
Thomas Harte
a72d70e707 Enabled code coverage calculation for unit tests. 2017-03-11 17:44:56 -05:00
Thomas Harte
38ce4dc56c Fixed potential deadlock, if a delegate decided to dealloc the queue as a result of its prompting. 2017-03-11 17:44:02 -05:00
Thomas Harte
d3257c345a Tested against public ROMs and corrected. Also moved the deferred adjustment into a more canonical place. 2017-03-04 17:00:28 -05:00
Thomas Harte
e09b76bf32 Fixed 'same value, then immediate increment, then proper counting increments' behaviour and ensured it takes one cycle to commit a value. Adjusted tests to match. 2017-03-04 15:57:54 -05:00
Thomas Harte
dcd0c90283 Switched time of best-effort updater delegate setting, to avoid a callback before setupClockRate has happened, and therefore before it's clear what should be going on with audio. 2017-02-26 21:58:59 -05:00
Thomas Harte
2f0c923c29 Switched away from @synchronized as it appears possibly to be the lock used during -dealloc, creating deadlock with the CSAudioQueueDeallocLock. 2017-02-22 21:42:10 -05:00
Thomas Harte
4c947ad553 Attempted to resolve risk of an audio callback being in progress when -dealloc is received. 2017-02-22 21:12:59 -05:00
Thomas Harte
1d03793f22 Fixed potential race condition: ensure the queue is disposed of synchronously because otherwise there'll be a potential dangling reference to self. 2017-02-22 07:35:09 -05:00
Thomas Harte
99a35266e1 Attempted to bring frequency-switching logic into the cross-platform realm. Which for now creates an issue with the OpenGL context. 2017-02-19 21:20:37 -05:00
Thomas Harte
dd17459687 Added my first failing test: delay is incorrect when resetting outside of the play area. 2017-02-12 20:42:49 -05:00
Thomas Harte
cd90118a0f Added two, extraordinarily simple tests. 2017-02-12 20:32:53 -05:00
Thomas Harte
327c19a222 Slightly shuffled to avoid a race condition on the best-effort updater. 2017-02-11 12:58:47 -05:00
Thomas Harte
92754ace7a Some mild fixes get me up to having a rolling screen of vertical lines. Which is what I was hoping for right now! 2017-01-29 22:16:23 -05:00
Thomas Harte
d51f185dc7 Made an attempt to reintroduce the basic horizontal loop. 2017-01-29 15:43:57 -05:00
Thomas Harte
fba6baaa9c Stubbed and disabled to get back to building. 2017-01-28 21:56:01 -05:00
Thomas Harte
0ffded72a6 Created a placeholder class for a factored-out TIA. There's a bit more it'll need to do, like vending (or receiving) a CRT but this is the full hardware stuff, I think. 2017-01-28 16:19:08 -05:00
Thomas Harte
9001cc3fc2 Added a cartridge image. 2017-01-27 21:26:11 -05:00
Thomas Harte
015b2b49f9 Introduced an incomplete set of file association icons. 2017-01-26 22:21:55 -05:00
Thomas Harte
7b696b0962 Switched scheme to shared. 2016-12-31 13:11:07 -05:00
Thomas Harte
a568172758 Made steps towards proper CRC generation. Am currently comparing against Oric disk images, as — amongst other things — they include precomputed CRCs. 2016-12-28 18:29:37 -05:00
Thomas Harte
99993a1b24 Since it's about to become important that objective results match, added a couple of objective-result tests for the CRC generator. 2016-12-27 19:03:46 -05:00
Thomas Harte
d606bd7ce5 Added saturation test, fixed code as indicated. 2016-12-24 23:29:37 -05:00
Thomas Harte
09ff9d6a26 Introduced a couple more floating-point conversion tests, fixed errors uncovered. 2016-12-24 23:21:19 -05:00
Thomas Harte
e25195a718 Added a single test for Storage::Time, discovering that I had the wrong sign on float conversions. 2016-12-24 22:59:01 -05:00
Thomas Harte
7028f57336 Simplified a little further. 2016-12-22 18:13:10 -05:00
Thomas Harte
e4e0347638 Attempted to consolidate some of the repetition. 2016-12-21 22:17:00 -05:00
Thomas Harte
72ca06cf8d Added some extra tests, performed some basic tidying. Probably should do more. 2016-12-21 19:54:19 -05:00
Thomas Harte
6a0c7f22ee Added a few more tests. All passing. 2016-12-20 21:46:34 -05:00
Thomas Harte
03579f33f1 Fixed multi-coverage insertion, via an appropriate test. 2016-12-20 21:38:32 -05:00
Thomas Harte
7eca910cc5 Fixed insertion location finding logic, working on the relevant test. 2016-12-20 21:14:05 -05:00
Thomas Harte
c180340474 Added two more passing tests and one that crashes. 2016-12-20 19:25:58 -05:00
Thomas Harte
823ab9bc34 Completed initial non-trivial test, fixing revealed errors. 2016-12-20 19:15:36 -05:00
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
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
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
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
c43e481a33 Started factoring video out of the Electron. 2016-12-10 21:07:52 -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
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
d17751787a The remainder of this test isn't necessarily safe to perform if the array length isn't as expected. But in that case the test has already failed, so it's not worth worrying about a partial validation. 2016-12-03 16:06:15 -05:00
Thomas Harte
b81c058c0a Factored out the Atari 2600's 6532 connection, as a low-hanging fruit. 2016-12-03 13:41:55 -05:00
Thomas Harte
3361d6b93a Factored out the Atari 2600 speaker and adjusted it to postfix underscores. 2016-12-03 13:39:46 -05:00
Thomas Harte
4fac538a57 Factored out the Electron's speaker and adjusted instance variable naming. 2016-12-03 12:41:02 -05:00
Thomas Harte
d1d93829cf Factored out the Tape and switched it to postfix underscores. 2016-12-03 12:18:08 -05:00
Thomas Harte
363db695e8 Started implementation of the Microdisc selection logic. 2016-11-22 08:12:53 +08:00
Thomas Harte
ea33a28695 Any Oric-format disks that are inserted now make it all the way to the Oric, along with a request to emulate the Microdisc. It has received a copy of the ROM. The ball is entirely in its court now. 2016-11-21 20:59:25 +08:00
Thomas Harte
8499783b14 Dragged multibyte primitives and signature checks up to the base class. Implemented support for Oric MFM-style .DSK, at the file format level. 2016-11-21 20:47:16 +08:00
Thomas Harte
31c2548804 Created a base class for the boilerplate fopen stuff, switched as many classes as possible to its use, switched to postfix underscores and non-camelCase names. 2016-11-21 20:14:09 +08:00
Thomas Harte
be60eaa120 Added a test for pointer continuity over a submit. Which fails. 2016-11-19 19:48:16 +08:00
Thomas Harte
274ec9efb8 Added a test for interceding submit. 2016-11-19 08:59:21 +08:00
Thomas Harte
22cb8ecd75 Started building some tests of the array builder. 2016-11-19 08:27:08 +08:00
Thomas Harte
324a1de43d Started pulling out array construction as a separate task. 2016-11-17 09:20:49 +08:00
Thomas Harte
5c5e44874f Even better: why include the 'Input' prefix when there's only one? 2016-11-16 22:57:17 +08:00
Thomas Harte
4d0d5eb919 Renamed the 'input buffer builder' to the 'input texture builder' to be explicit about what sort of buffer, and killed the prefix since it's namespaced. Also switched to std::vector. 2016-11-16 12:31:32 +08:00
Thomas Harte
e2cdfae8a7 The emulated Oric now has access to both versions of the BASIC ROM and picks between them based on the static analyser's recommendation. 2016-11-15 10:39:16 +08:00
Thomas Harte
1b66847647 Started trying to implement something sufficient of a 6502 disassembler. 2016-11-11 20:10:58 -05:00
Thomas Harte
80702616ea Had a quick go at using the Oric parser for static analysis. Found out that synchronisation is lost. Need to investigate. 2016-11-06 22:56:38 -05:00
Thomas Harte
d1ef2f7c63 Made an attempt to consolidate what I learnt of Oric encoding while building this hastily and untidily directly into the Oric implementation. 
(while adding support for the slow tape encoding mode)
 2016-11-06 19:22:09 -05:00
Thomas Harte
353c1c8ea3 Shifted ownership of PETSCII -> string conversion down to the storage layer, where it's useful for tape parsing. 2016-11-06 18:43:51 -05:00
Thomas Harte
1b15bc3a6c Started relocating the tape parsers down from static analyser to storage, to signify that they may be used by the emulation (if fast loading is supported on that machine). 2016-11-06 16:13:13 -05:00
Thomas Harte
c21bef4283 Project cleaning. 2016-11-05 15:08:22 -04:00
Thomas Harte
338904fffe Made similar cleanings of the Electron and Vic. 2016-11-05 15:07:57 -04:00
Thomas Harte
9fb9d92437 Made the typer much more able to help out, and thereby tidied and separated the Oric's typer. 2016-11-05 14:47:09 -04:00
Thomas Harte
dda0c8af30 Fixed tests. 2016-11-05 12:58:56 -04:00
Thomas Harte
a2e5fd2a1f Corrected layout error. 2016-11-03 08:02:13 -04:00
Thomas Harte
9c2df231ce Made fast loading optional. 2016-11-03 07:59:30 -04:00
Thomas Harte
67f2c73205 Slightly cleaned project. 2016-11-01 22:42:00 -04:00
Thomas Harte
70973eb850 Fixed accreditation of BCDTest. 2016-11-01 22:40:48 -04:00
Thomas Harte
23376257dc Let's try this not as markup. 2016-11-01 22:36:07 -04:00
Thomas Harte
bddc540c0d Partitioned and added text for AllSuiteA and Klaus Dormann's tests. 2016-11-01 22:35:15 -04:00
Thomas Harte
ca3e1c3204 Added an appropriate licence and credit for Wolfgang Lorenz's suite. 2016-11-01 22:26:12 -04:00
Thomas Harte
4b347b9993 Made a trivial XCTAssert unit test substitution. 2016-10-30 20:30:32 -04:00
Thomas Harte
e5fe37f089 Fixed 'joystick' input. 2016-10-27 19:44:48 -04:00
Thomas Harte
5c23acdbaf Switched window style back for the Atari HUD. 2016-10-27 19:40:29 -04:00
Thomas Harte
534b3d085d Improved test reporting, attempted to resolve timing errors just introduced (i.e. to differentiate break/continue where a cycle may or may not be spent). 2016-10-27 08:41:44 -04:00
Thomas Harte
013f0c5317 Finally forced emulation window to front. Also removed min/max heights where they'd crept in and got explicit about the OpenGL view being first responder. 2016-10-24 22:08:24 -04:00
Thomas Harte
91831b6a95 Introduced a reuse list for audio buffers, based on the observation that the audio queue seems to start quick rejecting them. 2016-10-23 21:17:00 -04:00
Thomas Harte
7c33c34b0c Have withdrawn attempt to be clever with client notification here, as it was having no effect in the current environment, making it hard to build up any confidence. 2016-10-23 20:33:59 -04:00
Thomas Harte
f13d7ed6f4 Added an extra safety rail. 2016-10-20 07:36:53 -04:00
Thomas Harte
73365e1877 Resolved sizing error. 2016-10-19 23:09:05 -04:00
Thomas Harte
c24c1bf3b1 Created an options panel for the Oric. Which involved far too much copy and paste from the Electron. Time to figure out how to generalise this stuff, probably. 2016-10-19 22:56:14 -04:00
Thomas Harte
5e2b0aa901 Quick project clean up. 2016-10-19 21:32:12 -04:00
Thomas Harte
5c69728625 Introduced a memory fuzzer, and ensured the Oric uses it. 2016-10-19 21:31:50 -04:00
Thomas Harte
5a808d789a Added an upper threshold that must be crossed before a lower threshold warning is communicated. 2016-10-18 22:21:34 -04:00
Thomas Harte
f6b6ec7009 Cemented new meaningof the audio queue delegate callout. 2016-10-17 08:18:32 -04:00
Thomas Harte
c105f2acd9 Sought to reduce chattiness. 2016-10-17 08:04:36 -04:00
Thomas Harte
b274d7008c Added precaution to make sure best-effort updaters aren't mid-update during document destruction. 2016-10-16 22:14:47 -04:00
Thomas Harte
da9c9ad51a Added in the missing keys; added variable phase to the video. 2016-10-14 22:39:27 -04:00
Thomas Harte
138eabcff4 Continued in my effort to wire up a keyboard. Will need further to continue. 2016-10-14 21:35:15 -04:00
Thomas Harte
d8e4c488c2 Started iterating towards having an AY and a fully-working keyboard. 2016-10-14 21:18:03 -04:00
Thomas Harte
0ca383ecd1 Set every single key to be NMI, in order to be able to progress with the diagnostics cartridge. 2016-10-13 18:56:55 -04:00
Thomas Harte
120b2d9e33 Switched to using a diagnostic ROM for now, as it'll definitely boot without initially requiring either a 6522 or AY. Have some forms appearing which imply I'm not doing badly, at least up to not knowing where I'm supposed to get character pixels from. 2016-10-12 21:52:47 -04:00
Thomas Harte
8c8a71107e Added just enough wiring to add something that will generate the video, one day. 2016-10-12 19:20:23 -04:00
Thomas Harte
e6937d8003 Ensured that the ROM gets installed. So next for some video action? 2016-10-12 18:51:02 -04:00
Thomas Harte
f7d2e988b6 Mildly enhanced unit test, while I'm curious. 2016-10-11 22:22:53 -04:00
Thomas Harte
4a062c616f Added enough wiring to get Oric TAPs through to a completely unimplemented Oric emulation. 2016-10-11 22:20:13 -04:00
Thomas Harte
cbc3d28217 Ensured an exception is thrown if no machine to run a file is found. E.g. right now if you tried to open a ZX Spectrum .tap. 2016-10-11 21:03:01 -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
02bfa8b8de This should just trust. 2016-10-10 07:45:09 -04:00
Thomas Harte
f4b39c4435 Added documentation and experimentally reduced packet size. We'll see. 2016-10-10 07:42:24 -04:00
Thomas Harte
de397799ed Pulled away my crazy rationalisation of an audio queue into a circular buffer and decided just to trust the OS. This should reduce latency. 2016-10-10 07:30:00 -04:00
Thomas Harte
c284818af5 Fixed alphabetisation of project. 2016-10-07 17:21:02 -04:00
Thomas Harte
e53455a936 Not having read the C++ synchronisation primitives before, this async task queue is probably incorrect. But nevertheless, let's have a quick go at employing it — in a hideously thread unsafe fashion — for audio generation. What can possibly go wrong? 2016-10-07 16:56:34 -04:00
Thomas Harte
c097886d00 Installed hoglet's BCDTest as a formal part of the test suite; removed some redundant semicolons in the Wolfgang Lorenz tests while I was here. 2016-10-04 07:52:44 -04:00
Thomas Harte
fa7c64bb5d Eventually reached an implementation of ADC that continues to satisfy all the formalised unit tests while also satisfying the manual BCDTest, that I need to find a way to formalise. I fixed the unit tests for Swift 3 while here, and attempted to do some unrelated NIB stuff with no real success. 2016-10-03 22:03:39 -04:00
Thomas Harte
cfdd5fb686 By removing its status as a special case, eliminated the Atari 2600 document. It's fairly clear that my date with doing joysticks properly can be deferred only so much longer but this is no worse than previously things were. 2016-10-03 08:01:04 -04:00
Thomas Harte
bf468db73d Migrated the Vic document to a mere options panel. 2016-10-03 07:42:05 -04:00
Thomas Harte
9e6e84647e Quick formatting fix. 2016-10-02 22:06:28 -04:00
Thomas Harte
f28881ec6b ... and with the return of stored options and the shift of the aspect ratio to somewhere else (to sit, temporarily), the Electron document is the first of the gang to die. 2016-10-02 22:04:47 -04:00
Thomas Harte
19457621d8 Redistributed ownership of the user defaults key prefix, the Electron now works other than that settings aren't retained. 2016-10-02 21:56:50 -04:00
Thomas Harte
f1b99263e0 Relocated responsibility for loading ROMs, giving an Electron that 'works' (i.e. options aside) again. 2016-10-02 20:39:06 -04:00
Thomas Harte
989a1581da Migrated analysis logic from the document controller to the document. 2016-10-02 17:04:14 -04:00
Thomas Harte
0c75c2fc41 Disabled all machine-specific document code, to force the migration of functionality. The 2600 works other than the little matter of input. 2016-10-02 16:57:57 -04:00
Thomas Harte
6c6e9830dd Started factoring the options panels out, in the hope that they'll become the only machine-specific thing. At least in the short term. 2016-10-02 16:31:50 -04:00
Thomas Harte
abf47efd40 Factored out Commodore is-a-ROM test, allowing it to be used from the Commodore analyser and thereby allowing ROMs to get as far as the machine again. 2016-09-29 19:39:13 -04:00
Thomas Harte
572d5587d9 Made a first stab at enabling multi-disk machines and thereby obeying (some of) the Plus 3's status register. 2016-09-25 21:24:16 -04:00
Thomas Harte
9bbcbd1001 Renamed class, intending to turn a Disk::Drive into literally just that, and have a thing with a PLL that consumes events be a Controller. 2016-09-25 20:05:56 -04:00
Thomas Harte
de863719d0 Made a first attempt at Acorn ADFS support plus the start of a suitable analyser. 2016-09-25 17:46:11 -04:00
Thomas Harte
ce4100e5b9 Fixed slots for DFS and ADFS to sideways RAM; continued working on the 1770 to get as far as trying to get the body of a sector. 2016-09-24 22:04:54 -04:00
Thomas Harte
cd5939501f Treading water some more, ensured the DFS and ADFS ROMs get to the Electron. It now even inserts the DFS ROM if it has a DFS disk image. Might need to make it a sideways RAM though? Regardless, the next job surely — surely! — has to be to stop avoiding the 1770? 2016-09-20 07:36:57 -04:00
Thomas Harte
c9dd07cecd DFS disks are now delivered right up to the emulator's front door. So everything's in place to get started on that WD1770 nonsense. 2016-09-19 08:29:23 -04:00
Thomas Harte
fbcb59d47a A policy change trial: let the person above deal with any error. 2016-09-18 21:18:41 -04:00
Thomas Harte
0ce901bd48 Added necessary wiring to get as far as asking an arm of the analyser to check out an Acorn disk image. 2016-09-18 21:18:11 -04:00
Thomas Harte
91cd7e143b Started on the SSD/DSD support. Realised I had ommitted multiple head support from my disk class. Fixed that. 2016-09-18 19:21:02 -04:00
Thomas Harte
180c3df2d4 Calling it 'number theory' probably isn't accurate but extracted the CRC stuff and started using it for [M]FM encoding. 2016-09-18 18:33:26 -04:00
Thomas Harte
bcf91de7e9 Declared support for the Acorn disk files, started hammering out an encoder. 2016-09-18 13:35:54 -04:00
Thomas Harte
0e44cfa8a1 Merge branch 'master' into WD1770 2016-09-18 10:34:11 -04:00
Thomas Harte
6f0b9adc3d Factors.cpp is dead. 2016-09-18 10:23:34 -04:00
Thomas Harte
a98374995e Cleaned up pre-analysis code. 2016-09-17 18:19:32 -04:00
Thomas Harte
e3daf80564 Added a file for the 1770, at least. 2016-09-17 18:01:00 -04:00
Thomas Harte
7c65c69e0f Migrated to Swift 3. 2016-09-15 22:12:12 -04:00
Thomas Harte
ee8510984f Added just enough wiring to restore the 2600 to functionality. 2016-09-15 19:34:45 -04:00
Thomas Harte
92af19098c Improved file naming. 2016-09-15 19:24:59 -04:00
Thomas Harte
df7aed7e8b The Commodore analyser now at least hands off to somebody else a chance to parse disks. 2016-09-13 07:26:51 -04:00
Thomas Harte
c3a795328d Windows have titles again. Also I've owned up to not knowing how to edit UEFs right now. 2016-09-12 22:15:38 -04:00
Thomas Harte
40660fe680 Made yet another guess at Commodore analysis. Elevated fast tape-related unnatural speed up to the OS-side mechanisms. 2016-09-12 22:06:03 -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
908dc40569 If loading automatically, assume that whatever was in the machine target set up the machine and don't override it. Too dodgy? More thought required. 2016-09-08 07:38:34 -04:00
Thomas Harte
8c84f3581a Attempted to bring some uniformity in application of configurations. 2016-09-08 05:32:17 -04:00
Thomas Harte
50175a9aed Added logic to try to spot when the first program is BASIC and, if so, what the correct memory model is, then to get that information to the Vic. Though it currently then gets overwritten by the view controller. Grrrr. 2016-09-07 22:17:19 -04:00
Thomas Harte
bdebc18e0a Added a header parser for Commodore tapes. No time to grab file bodies now; time to go to work. 2016-09-06 08:49:32 -04:00
Thomas Harte
8b933182af Added enough wiring (hopefully) that the Commodore tape's GetFiles should be called when appropriate. 2016-09-06 06:39:40 -04:00
Thomas Harte
963e307d0c Increased documentation. 2016-09-05 22:06:39 -04:00
Thomas Harte
05c24222d8 Liberated the tape parser template. 2016-09-05 20:02:35 -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
a9b67dfba0 Introduced an NSDocumentController subclass. 2016-08-31 21:21:07 -04:00
Thomas Harte
7bc2b6b161 Added the minor piece that will allow analysis results to be obtained from Objective-C, and exposed to Swift in sufficient detail for it to be able to pass on to the machine. 2016-08-31 20:43:29 -04:00
Thomas Harte
0032ad2634 Edging ever onwards; killed forced attempt at uniformity in targets, sketched out the interface for a next-file-from call to Acorn tapes. 2016-08-29 21:10:38 -04:00
Thomas Harte
d1abfc040c Addressed my dithering here: the file format containers themselves should do nothing but inspect the data to find out whether it is of the correct format. The machine steps are there for machine-specific validation. So it's probably easier to treat a binary ROM image just as a binary ROM image. Therefore, the Acorn-specific .rom detection is now in an Acorn-specific area. 2016-08-29 08:48:49 -04:00
Thomas Harte
29c972f4b8 Added hacky segue into analysis for all Electron formats. Added analyser to try to differentiate Acorn-format ROMs from other things called .rom, which are likely to be numerous. 2016-08-28 12:43:17 -04:00
Thomas Harte
d9f0065154 Sketched out just enough classes to get through the get-contents-into-memory step of static analysis. 2016-08-28 12:20:40 -04:00
Thomas Harte
24938326ac ROMs definitely have no behaviour other than responding to memory accesses. Cartridges might. So picked the more general term. Sketched out a class at least to parse PRG as though it were a cartridge. Hence the static analyser can guess at whether a PRG is a cartridge or an ordinary program. 2016-08-27 18:26:51 -04:00
Thomas Harte
a1b3a18d11 Started forcing a resolution on ROMs by doing. But have immediately misstepped. Rename coming momentarily... 2016-08-27 18:17:40 -04:00
Thomas Harte
56c0d70c1f Gave disks their own namespace. 2016-08-27 17:15:09 -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
e68ff64045 Actually, this is less prescriptive. 2016-08-27 13:42:51 -04:00
Thomas Harte
5ffd9e4f0d This is probably how the static analyser interface will look? 2016-08-23 21:35:59 -04:00
Thomas Harte
0d077691b0 Resolved warning. 2016-08-23 21:10:22 -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
6079d30e58 Eliminated waiting here — either the buffer can be enqueued now or it is dropped. 2016-08-14 16:20:24 -04:00
Thomas Harte
5373f6cc57 Completed setting of options, including mapping from country to ROM + television standard. 2016-08-14 14:23:08 -04:00
Thomas Harte
b5af1746d5 Added a through path to the Objective-C for setting region and memory size. 2016-08-14 14:14:59 -04:00
Thomas Harte
f15d89239f Made a stab at storage and restoration of country and memory size. 2016-08-14 14:00:08 -04:00
Thomas Harte
df77c2a20a Added the XIB side of wiring for region and memory size options. 2016-08-14 13:53:14 -04:00
Thomas Harte
12bad8f23f Turned the 6560 into an ordinary template, similar to the rest of the project, albeit right now with a fairly shonky internal implementation. Fixed a Mac-specific interface sizing issue. 2016-08-09 20:41:05 -04:00
Thomas Harte
285a288c80 Switched to two cycles of options loading, meaning that they get set before files are inserted. Might need some further work? 2016-08-07 21:48:09 -04:00
Thomas Harte
be54d8040e Made a first stab at having automatic loading be optional. But things are currently arranged such that the machine options are communicated too late to have an effect. So work to do. 2016-08-06 17:39:27 -04:00
Thomas Harte
58297f1baf Performed the basic metadata and routing for opening D64 files. Realised that I wasn't actually necessarily catching exceptions properly for all file opens, and fixed. 2016-08-01 07:09:15 -04:00
Thomas Harte
18744cd98b Slightly updated comments, switched to 1540 ROM so as very slightly to improve loading time. 2016-08-01 04:37:30 -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
015cea494d Switched to a much-more straightforward PLL. I think I'm just fiddling now rather than moving forwards. Probably time to move on? 2016-07-28 11:32:14 -04:00
Thomas Harte
e061e849d4 Had a second bash at the PLL. Probably I should read some of the literature. 2016-07-27 16:24:24 -04:00
Thomas Harte
0aa90b943b Switched to specifying bit length as a quotient for the purposes of a PCMSegment and verified that I had the logic for picking a Commodore time zone backwards: bigger numbers are faster, not slower. 
Started sketching out a DiskDrive class.
 2016-07-15 06:51:11 -04:00
Thomas Harte
74817f6664 With a history of three pulses, this can track up a 10% sine variation in a 1010101 stream. So I guess this'll do for now? 2016-07-14 19:54:48 -04:00
Thomas Harte
ac1bc588dd Improved factoring and increased window of testing, causing both the fast and slow tests to show framing errors. 2016-07-14 07:12:02 -04:00
Thomas Harte
d1fe07f14d Added test of perfect DPLL input timing. 2016-07-12 21:42:23 -04:00
Thomas Harte
75d95c0bc0 Sketched out an interface for a digial PLL. Not persuaded yet. Baby steps. 2016-07-11 22:12:58 -04:00
Thomas Harte
1e9eedc314 Factored out the PCM track since it's going to be a useful construct for almost every file format. Documented it a little better. 2016-07-10 18:36:52 -04:00
Thomas Harte
6cfc514c2d Made the rote changes necessary to attempt to open and to supply a G64 to the Vic. 2016-07-10 12:57:17 -04:00
Thomas Harte
ff49857f5c Started sketching out support for the G64 file format. 2016-07-10 10:17:53 -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
d8334edf4a Started trying to clean up, including commuting the C1540 source file name to match its class name but mainly by adding documentation. 2016-07-10 07:46:20 -04:00
Thomas Harte
656cd211d7 Was transmitting bit levels backwards (probably?); 1540 now acknowledges byte received. 2016-07-09 18:06:49 -04:00
Thomas Harte
01746f0512 This is probably a valid test. But I'm not completely sure. Time to figure out what's happening on the 1540 end. 2016-07-09 18:01:04 -04:00
Thomas Harte
cd84c35552 Whoops, one bit too short. 2016-07-09 17:51:46 -04:00
Thomas Harte
cd362b46b3 This is a valid attempt to send a whole byte, I think. 2016-07-09 17:51:04 -04:00
Thomas Harte
3560babd7e Got back to a failing test, now while trying to transmit a whole byte. Good stuff! 2016-07-09 17:39:51 -04:00
Thomas Harte
66caa3c6dc Fixed setup of bridge class. 2016-07-09 17:23:43 -04:00
Thomas Harte
bf03985ea4 Here's an instantly failing test... 2016-07-09 17:22:10 -04:00
Thomas Harte
da6fe2e983 This should be enough of a shell to write some actual tests. 2016-07-09 15:47:53 -04:00
Thomas Harte
865eb421cd Quick on-disk tidy up. 2016-07-09 15:44:55 -04:00
Thomas Harte
7cc4bf3fe7 Hit and hope is getting me nowhere. Time to unit test this thing. 2016-07-09 15:40:25 -04:00
Thomas Harte
81e6cc34e5 Per the ROM disassembly, the Vic's VIA outputs are inverted for the benefit of the serial bus. 2016-07-07 06:57:21 -04:00
Thomas Harte
1baf21827c Since the ROM is well disassembled, let's actually try to be a 1541 first. 2016-07-06 22:17:32 -04:00
Thomas Harte
d1eea6943d Ensured the 1540 ROM gets installed, at least. 2016-07-05 16:54:25 -04:00
Thomas Harte
47548dcedc Fixed an erroneous #import. 2016-07-05 16:39:31 -04:00
Thomas Harte
86dabd007b Furthered fleshing out of the 1540. Though it doesn't yet receive a ROM so won't even attempt to do anything meaningful. 2016-07-05 16:39:18 -04:00
Thomas Harte
d2cded7b59 Attempted to separate out the concept of a serial port and a serial bus, since the bus may be shared, and to establish half duplex communications from the Vic. 2016-07-05 14:55:20 -04:00
Thomas Harte
0d3d0fbe4d Created a namespace for Commodore and an empty container file for the 1540[/1] implementation. 2016-07-05 13:28:27 -04:00
Thomas Harte
df4724eb3e Added a modal toggle allowing the keyboard to be switched between being a keyboard and being a joystick for the Vic. 2016-07-04 22:01:07 -04:00
Thomas Harte
88964ceac0 Eliminated plain pointer passing for object types. 2016-07-04 19:33:55 -04:00
Thomas Harte
6dbf16210b Switched protocol to meaningful name and corrected its omission from the repository. 2016-07-04 19:19:07 -04:00
Thomas Harte
b322baff2f Added CLI/SEI pair test. 2016-06-29 19:42:39 -04:00
Thomas Harte
db7c6430b5 Fixed Klaus Dormann termination condition. 2016-06-29 19:16:34 -04:00
Thomas Harte
6419d9c485 Added a single IRQ test case, discovering that I'm two cycles short. Whoops! 2016-06-28 21:29:43 -04:00
Thomas Harte
6027cba95f Factored out the stuff of pushing a fast-loading option onwards and storing it within the user defaults. 2016-06-27 21:38:14 -04:00
Thomas Harte
9134e4de1f Added a partially-wired options menu for the VIC. 2016-06-27 18:49:53 -04:00
Thomas Harte
d5e50f5ea0 Got a bit more explicit about how ports are identified on the 6522. 2016-06-26 12:30:01 -04:00
Thomas Harte
8741be5c84 Made the slightest possible effort to get TAPs opened and passed to the VIC. 2016-06-25 16:24:52 -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
b8728285e7 An overridden getter looks more like this in Swift. 2016-06-23 21:09:34 -04:00
Thomas Harte
097a9caa95 Delegates are all nullable, naturally. 2016-06-23 09:37:49 -04:00
Thomas Harte
454e98302d Slight rearrangement plus a setting of the CSMachine delegate corrects audio after a clock rate change. 2016-06-20 22:18:41 -04:00
Thomas Harte
31b26b8118 Made a first attempt to implement the full top-to-bottom change of clock rates, giving the Atari the ability to change rate when it switches to PAL mode, as it should always have been. 2016-06-20 21:47:27 -04:00
Thomas Harte
3591479571 Fixed mismatch between initial tick box states and communicated switches; ensured they're visible upon launching a game. 2016-06-20 21:31:07 -04:00
Thomas Harte
25a5455d33 Completed bridge interface. 2016-06-20 21:07:01 -04:00
Thomas Harte
fe17d1778c Expanded 6532 tests substantially, beefing up implementation to match. 2016-06-20 21:02:42 -04:00
Thomas Harte
6c3f5d2caf Fixed window sizing. 2016-06-19 21:40:35 -04:00
Thomas Harte
4db61d98f4 Killed the .cpp. 2016-06-19 20:21:38 -04:00
Thomas Harte
d5aaad396e Added a TODO on my lack of knowledge. 2016-06-19 20:13:31 -04:00
Thomas Harte
7cf6008e7c Started some very basic RIOT unit tests; corrected to pass. 2016-06-19 20:12:47 -04:00
Thomas Harte
065ec618c4 Factored out and templated the 6532, finally taking the opportunity to add a means to control the on-console switches of an Atari 2600. 2016-06-19 19:36:34 -04:00
Thomas Harte
ce2f5515c0 Made some minor documentation improvements, killed 6522.cpp as the 6522 is going to be a template only, attempting to promote good inlining behaviour. 2016-06-19 18:11:37 -04:00
Thomas Harte
ef3ed1f436 Implemented full paste ability for any machine that is a typer. 2016-06-19 16:35:04 -04:00
Thomas Harte
e7aeed2f03 Established a general pattern for machines that can type things. Started working on the Vic typing itself. 2016-06-19 13:10:52 -04:00
Thomas Harte
f4915c5ad6 Fixed test and added basic implementation of data direction. 2016-06-18 17:17:03 -04:00
Thomas Harte
eea850cd12 Added a deliberately failing data direction test. 2016-06-18 16:40:01 -04:00
Thomas Harte
2282b59768 Added a quick latching test, and shortened test messages, albeit that they're still displeasingly boilerplate. 2016-06-18 16:10:46 -04:00
Thomas Harte
5d26cd85a3 Wrote test case for what appears to be correct timer behaviour if those were acting in isolation. Ensured implementation matches test case. 2016-06-18 14:30:23 -04:00
Thomas Harte
394902f409 Switched to clocking the 6522 by the half-cycle. Very trivial test now passes. 2016-06-18 13:57:10 -04:00
Thomas Harte
06fb2ff1c7 Started endeavouring to sketch out the boilerplate for writing a 6522 test harness. Added a default implementation of synchronise to the 6522 too, since not everybody is going to want one. 2016-06-18 09:28:46 -04:00
Thomas Harte
090e92ad26 Making this large has very limited side effects. So why not? 2016-06-16 21:41:17 -04:00
Thomas Harte
3b71d1a309 Switched to a variable-length buffer based on attempting to hit approximately a certain quality of service. 2016-06-16 21:35:22 -04:00
Thomas Harte
2ee78d42b9 Made an attempt also to trigger updates upon audio packets being returned, and significantly to reduce the size and quantity of those. This should get down to 11ms latency if the output wave is 44100; I might need to scale up the buffer size as the sampling rate increases or this is going to get crazy at 192Khz. 2016-06-16 20:51:35 -04:00
Thomas Harte
00a9f1bf24 Fixed best-effort updater actually to run, finally moved clock rate announcement into the C++ side of things, started working on a mechanism to allow clock rate to be updated. 2016-06-16 20:39:46 -04:00
Thomas Harte
1921a6c469 Rewired the existing cause-an-update route from the OpenGLView through the best-effort updater. 2016-06-16 18:19:23 -04:00
Thomas Harte
530cf3dcbb Made an attempt to consolidate serialisation and clock rate adherence, allowing a floating-point clock rate. 2016-06-16 18:04:54 -04:00
Thomas Harte
ce59ad1911 Minor on-disk shuffle, to try to clarify ownership of responsibility. 2016-06-15 08:11:30 -04:00
Thomas Harte
45999f5b26 This should be strong. 2016-06-15 08:07:59 -04:00
Thomas Harte
e0baaf17f1 Added class prefix. 2016-06-15 08:07:25 -04:00
Thomas Harte
695dd2e9e3 Started upon a delegate protocol for the AudioQueue, resolving my use of a deprecated API while I'm at it. 2016-06-15 07:35:34 -04:00
Thomas Harte
a9036e7aa4 Increased buffering range of audio as a quick fix for now. Basically means: increased latency as a short-term fix. 2016-06-14 07:31:47 -04:00
Thomas Harte
fcf4b14344 Extended to allow floating-point sampling rates. Which makes sense. 2016-06-13 19:30:41 -04:00
Thomas Harte
4fec625b19 Minor cleaning, implemented clearAllKeys. 2016-06-12 10:38:21 -04:00
Thomas Harte
ec604f1414 Expanded mapped keys just a tiny bit further. 2016-06-12 10:35:47 -04:00
Thomas Harte
167ed9b8bb Added enough to load a PRG as a ROM. 2016-06-11 14:00:12 -04:00
Thomas Harte
d9b001d3fc Minor clean-ups. 2016-06-11 13:51:04 -04:00
Thomas Harte
3e8d383615 Improved key map. Possibly enough to type some basic BASIC? 2016-06-11 13:19:59 -04:00
Thomas Harte
d1731b1d26 Hacked my 6522 to work. Mistake is in not returning output as input when appropriate — i.e. that I'm ignoring data direction. Also fixed K and L keys. 2016-06-11 13:06:01 -04:00
Thomas Harte
271de23ee6 Ran on in and introduced a bunch more keys, hopefully to help to diagnose. 2016-06-11 12:26:19 -04:00
Thomas Harte
d7c1f5b18a Made an attempt at hooking up the '2' and '4' keys. A mostly unsuccessful attempt. 2 does nothing, 4 clears the screen. 2016-06-11 11:50:37 -04:00
Thomas Harte
6522530e1c Actually, I'm dithering over whether the 6522 should be an ordinary class or a curiously-recurring template. But it'll need a file, definitely. 2016-06-06 21:56:02 -04:00
Thomas Harte
0b221e773f Fixed ROM naming and sizes, ensured machines without sound outputs don't end up with an audio queue. 2016-06-05 11:20:05 -04:00
Thomas Harte
f922d38ed2 The Vic now captures the ROMs sent to it and has just enough infrastructure to get to a black screen. Progress! 2016-06-05 10:51:07 -04:00
Thomas Harte
12243c40ad Kicking the ball a little further down the road, ROMs and PRGs now reach the actual emulated machine. 2016-06-05 09:06:59 -04:00
Thomas Harte
b29b2a5d08 Added forwarding of a loaded PRG from the Swift document to the wrapper. So I think that possibly completes the Swift side of things? 2016-06-05 09:01:32 -04:00
Thomas Harte
8052ce9223 System ROMs are now supplied to the Vic-20 wrapper, though they stop there. I also factored key forwarding out of the ElectronDocument and into the superclass, depending upon the child conforming to CSKeyboardMachine. 2016-06-05 08:53:05 -04:00
Thomas Harte
363e14a92f Reorganised system ROMs out of the Mac-specific folder, adjusted Mac code to expect to find them organised hierarchically (as how many os.roms am I going to have?) and added readme files to explain what's missing from the Git repository. 2016-06-05 08:33:01 -04:00
Thomas Harte
4c33517228 Added ROMs to the project and ensured they don't get uploaded. 2016-06-04 22:03:38 -04:00
Thomas Harte
b10a06e700 A CRT is still absent but this moves the ball back into the C++ side's court. 2016-06-04 22:00:50 -04:00
Thomas Harte
06e1db8c85 This now gets as far as missing selectors. 2016-06-04 21:49:03 -04:00
Thomas Harte
eff28e95a4 Added XIB file. 2016-06-04 21:45:39 -04:00
Thomas Harte
404873fe58 Started sketching out infrastructure for Vic-20 support. 2016-06-04 21:43:50 -04:00
Thomas Harte
d6e8cd676a Trimmed and reordered just a little. 2016-06-04 16:02:16 -04:00
Thomas Harte
68a8851c52 Increased parallelism, allowing a simplification in the GL view. 2016-06-02 22:29:09 -04:00
Thomas Harte
e3b95b8d2b Back to asynchronous updates and drawing, to try to improve guarantees on audio latency; experimenting with whether other parts of the approach are fundamentally flawed; added a broad-phase for scheduled updates on the 2600. 2016-06-02 21:22:55 -04:00
Thomas Harte
11073daee1 Issues appear to be around timing generally. Working on it. 2016-06-02 20:15:48 -04:00
Thomas Harte
253e5a4203 With no regard to performance whatsoever, endeavoured to bring sound to the 2600. It's very scratchy, so something is wrong. 2016-06-02 19:50:16 -04:00
Thomas Harte
8623dc2833 Consolidated a little more within the common code, adding sampling rate selection based on querying the machine. 2016-06-01 19:04:07 -04:00
Thomas Harte
50543e9676 Minor factoring up: the audio queue is now pushed universally by MachineDocument. 2016-05-31 22:36:53 -04:00
Thomas Harte
c773c3a66c Started trying to clean up and consolidate on the Swift side of things but time is up for the day. 2016-05-31 22:32:38 -04:00
Thomas Harte
8dc66167be Made an attempt to consolidate the Objective-C++ side of things based on the incoming CRTMachine::Machine. 2016-05-31 22:16:20 -04:00
Thomas Harte
5c4f35e13f Finally started on generalising the C++ stuff so as to be able to be able to get a working audio binding on the OS-specific side without further repetition by factoring an appropriate protocol out from the Electron and sketching out the correct speaker class for the Atari. Added a method to ask it what a good output frequency would be. 2016-05-31 21:23:44 -04:00
Thomas Harte
40600b4bcb Made sprite placement consistent at least. Not necessarily yet correct. 2016-05-18 22:07:24 -04:00
Thomas Harte
3765c5fbb5 Fixed error that would prevent an interrupting frame from ever being drawn. 2016-05-18 21:45:35 -04:00
Thomas Harte
ddfc9910e5 Sought to draw in a standard serial arrangement as and when bandwidth allows it. 2016-05-09 07:17:12 -04:00
Thomas Harte
1bb92550f8 It's 2016. 2016-05-02 22:02:06 -04:00
Thomas Harte
6982e945fb Fixed those issues breaking GL state, I hope. 2016-05-01 16:17:52 -04:00
Thomas Harte
8538b62ea2 Made an attempt to extract and consolidate the logic behind the intermediate shaders. 2016-04-28 21:04:59 -04:00
Thomas Harte
496d979aca Made a decision to clean up by creating per-shader classes. Well, more or less. First thing to be factored out: the output shader. 2016-04-27 22:29:54 -04:00
Thomas Harte
416c944f02 Experimental: let's try accumulating history directly in the framebuffer. 2016-04-26 21:41:39 -04:00
Thomas Harte
9b64f64db7 Attempted to normalise some style decisions.` 2016-04-24 22:32:24 -04:00
Thomas Harte
884755c560 Ensured the GL context is available when switching Atari 2600 output, and that it locks the output. 2016-04-24 20:56:21 -04:00
Thomas Harte
d221c712b0 Ensured GL context is active when destructing CRTOpenGL. 2016-04-24 20:34:25 -04:00
Thomas Harte
929cfc49cb Extended window for picking output frequency, attempted to consolidate CRT OpenGL timing uniforms for approprate resetting. 2016-04-24 18:58:31 -04:00
Thomas Harte
082003ed0a Reintroduced the CRT delegate and the 2600's automatic region switching. Albeit that the CRT itself doesn't adjust properly to new timings yet. 2016-04-24 18:36:22 -04:00
Thomas Harte
80a3169674 Started reviving the Atari 2600 emulation. Put new startup sequence into place. 2016-04-24 06:56:08 -04:00
Thomas Harte
9c89b668ae Made further attempts to improve synchronisation and interrelated timing between display and machine update. 2016-04-20 22:35:46 -04:00
Thomas Harte
7aa87723a9 Added: key states are all cleared if the window loses focus. Which resolves sticky key issues. Allowing me just to use command+option+O for options and map both command and option as FUNC. 2016-04-19 21:29:10 -04:00
Thomas Harte
d5bac2f04f Spotted error was in texture target all along. This now gets as far as showing something a lot like the correct display, but precision is way off. Way off. 2016-04-18 21:32:48 -04:00
Thomas Harte
86626bbd72 Switched key that maps to FUNC from command to option. Logic is that command may frequently be used for performing an action which changes the key window, in which case we won't realise if it is released. 2016-04-18 19:20:26 -04:00
Thomas Harte
f89308e913 Set the 'options' windows to hide on application deactivation so that they don't cluelessly sit on top of the rest of the system. 2016-04-18 19:14:58 -04:00
Thomas Harte
bf29c8e2bf Fixed mismatch in television/monitor selection, ticked view for drawing concurrently, since it can, removed stray space. 2016-04-18 19:01:15 -04:00
Thomas Harte
3d53f157de Output selection now takes effect. So I can stop accidentally committing changes back and forth. 2016-04-18 08:27:58 -04:00
Thomas Harte
94f148e212 Wired in options, at least getting as far as the Objective-C bridge. Then fast loading makes it to the emulated machine, display output type doesn't. 2016-04-18 08:21:00 -04:00
Thomas Harte
6158275ea7 Started adding an options panel. 2016-04-17 21:43:39 -04:00
Thomas Harte
499f7ace07 Re-enabled working video output for the Electron for the day and consolidated the rough metric I'm using to pick a number of taps for the audio filter. 2016-04-17 20:43:20 -04:00
Thomas Harte
104f44f27f Attempted to improve deinterlacing, gave the CRT full control over blend mode, switched back to 2000000Mhz audio. 2016-04-14 22:20:47 -04:00
Thomas Harte
2cc72169ff Ensured machines can nominate their own aspect ratio windows. Switched to 11/10 for the Electron. 2016-04-11 23:12:56 -04:00
Thomas Harte
7276a06cc0 Added a helper to calculate a visible rect based on output timings, used it to scale the Electron output up to the full window size. 2016-04-11 21:47:23 -04:00
Thomas Harte
e617bd2bb3 Turned audio quality up to the maximum, at least for now. 2016-04-06 21:12:22 -04:00
Thomas Harte
28e6517234 Switched away from tracking absolute time to tracking relative. 2016-04-06 20:46:00 -04:00
Thomas Harte
d4be4c4769 Of course, I want min. Not max. 2016-04-06 20:27:48 -04:00
Thomas Harte
fd1f6a7e1f Expanded on thinking. 2016-04-06 19:35:53 -04:00
Thomas Harte
e885438363 The penny has finally dropped that I can drive the CPU stuff in a manner completely decoupled from the GPU stuff. For much improved parallelisation. 2016-04-06 19:34:34 -04:00
Thomas Harte
4595741ab0 Made an attempt not to interrupt the display link queue too much when emulation is running slowly. 2016-04-04 20:22:33 -04:00
Thomas Harte
3038704977 Attempted to introduce a lowpass filter to the graphics output, reverted 6502 optimisations as seemingly not working. 2016-03-21 22:01:25 -04:00
Thomas Harte
5966ac845f Switched symbols and updated all-RAM 6502 in order to fix unit test target. 2016-03-20 22:48:56 -04:00
Thomas Harte
902017a962 Fixes: drop any processing backlog, try not to allow an Electron document to close mid-draw, perform a frame grab even if the emulated machine is over-processing, really really don't create a CRT until it's safe. 2016-03-20 18:42:37 -04:00
Thomas Harte
fb6fb5d948 Switched to two-phase setup to deal with OpenGL scheduling. 2016-03-20 13:50:13 -04:00
Thomas Harte
eabc382540 Fixed: of course I can't rely on the pointer to CVTimeStamp not becoming dangling during a queue jump. 2016-03-19 23:02:42 -04:00
Thomas Harte
4c5d66c317 Made sure GL context isn't activated until it's locked. 2016-03-19 22:54:56 -04:00
Thomas Harte
a546277f88 Added the simplest mechanism to decouple emulation from the display link queue. 2016-03-19 22:53:37 -04:00
Thomas Harte
9da7716c72 Attempted to simplify threading, thereby allowing machines to be constructed within a valid GL context, and started adding appropriate GL syncs. Which all oddly drops everything to a negligible FPS. Investigation will follow. 2016-03-19 22:46:17 -04:00
Thomas Harte
4ac1f959e9 A shortcut here and a shortcut there; this allows me at least to determine whether use of a PBO gains anything. 2016-03-19 17:07:05 -04:00
Thomas Harte
4cd0aa3416 Completed FIR filter based audio output. 2016-03-15 23:37:35 -04:00
Thomas Harte
7694297c83 Introduced an adapted version of the previous Clock Signal's FIR filter. 2016-03-15 21:05:20 -04:00
Thomas Harte
1c4acfb599 I think this is a prima facie acceptable implementation of the fast tape hack. 2016-03-13 17:39:53 -04:00
Thomas Harte
bb0cd89574 Got explicit about threading guarantees. 2016-03-13 13:38:03 -04:00
Thomas Harte
cfa616d593 Fixed: timing issue versus supplied test ROM was failure to include the Plus 1 ROM in the mix. 2016-03-12 11:51:20 -05:00
Thomas Harte
bf5747f83e Made an attempt to chop out all the stuff of building up the OpenGL data from the stuff of parsing input. 2016-03-08 22:40:23 -05:00
Thomas Harte
14b2927275 Made further attempts to tidy up; trying to demarcate between public interface and private. 2016-03-08 20:59:16 -05:00
Thomas Harte
1e5fe2b2c1 Made an attempt to reestablish the Atari 2600 output connection despite various changes (TODO: generalise that stuff), and to start creating the composite shader. 2016-03-07 21:04:04 -05:00
Thomas Harte
41c09f8c3f Renamed CSCathodeRayView to CSOpenGLView as it no longer has any CRT-related responsibilities. It just does the GL and manages a serial dispatch queue. 2016-03-05 14:45:09 -05:00
Thomas Harte
95efeb1d56 Ensured all delegate and responder delegate messages occur on the same queue. 2016-03-05 14:35:47 -05:00
Thomas Harte
c754a6e45a Decoupled execution speed and frame rate; cleaned up. 2016-03-03 22:12:31 -05:00
Thomas Harte
60d35fa72b Requested multisampling, if available, rather than supersampling. 2016-02-27 22:46:31 -05:00
Thomas Harte
c7f54d649e Switched back down to two samples per pixel. Though one might do it. Need to investigate. 2016-02-18 23:21:25 -05:00
Thomas Harte
3ea0d04a1a -dealloc now blocks until all audio queue buffers are no longer playing. 2016-02-16 21:47:23 -05:00
Thomas Harte
bbffbb5dc2 Resolved deadlock if an invalidate call was sent to the Electron while it was in the middle of an update. 2016-02-16 20:35:45 -05:00
Thomas Harte
a01f90ff3e Attempted a switch to the real PAL visible area and to something a bit like a real phosphor decay. 2016-02-14 21:57:23 -05:00
Thomas Harte
7580d192d5 Fixes: now setting correct frame time estimate, properly enabling the timestamp attribute, and ensuring that the Electron flushes screen work at least once per host frame update. 2016-02-14 19:28:02 -05:00
Thomas Harte
eeb0e134fd Started the transition towards a more natural collection of rolling buffers, with phosphor decay in mind. 2016-02-13 20:52:23 -05:00
Thomas Harte
7bc5a43c36 Fixed type warning. 2016-02-12 22:30:22 -05:00
Thomas Harte
0527888b15 Endeavoured to ensure safe shutdown. 2016-02-12 22:30:06 -05:00
Thomas Harte
a6574d1f96 Made an attempt to factor out and more clearly to document my implementation of flywheel synchronisation. 2016-02-11 22:12:12 -05:00
Thomas Harte
b5bcadb8d3 Reinstated clipped CRT output, with more appropriate ownership of the decision. 2016-02-07 22:18:55 -05:00
Thomas Harte
4d0a218a57 Certainly at least seriously considering a separate holder for the "compile a shader" logic. Otherwise taking steps back towards PAL/NTSC decoding. 2016-02-07 17:32:38 -05:00
Thomas Harte
602327cd9d Sketched out a quick class for rendering to texture. 2016-02-07 15:42:02 -05:00
Thomas Harte
d3d505b7bc That's one header file less. 2016-02-05 23:05:58 -05:00
Thomas Harte
6ab425deda There is now a semi-reasonable amount of screen output again. 2016-02-05 21:35:39 -05:00
Thomas Harte
80e7e5e602 Updated to return old behaviour of drawing only upon changes. 2016-02-04 23:05:47 -05:00
Thomas Harte
8bc3f8046d This endeavours to move everything into the CRT class except the final version of shader building. 2016-02-04 22:57:46 -05:00
Thomas Harte
e0d51408e4 Onward with carrying this through to the bitter end, this at least results in all the appropriate knowledge and call-ins occuring at the CRT. 2016-02-04 22:28:50 -05:00
Thomas Harte
4554abb755 Made an attempt to be more rigorous in display generation on the Electron, to make sure I deal with mid-line changes to/from blank line mode. Even if it turns out that they generate pixels. 2016-01-29 21:14:13 -05:00
Thomas Harte
0efe4b312c Disabled my various bits of rate interchange debugging; improved test for when to call update_display due to a RAM write. 2016-01-21 22:16:52 -05:00
Thomas Harte
de7218cdf0 Added a lot of commenting to the CPU6502 definition, simplifying its construction. Added missing nullability modifier to CSElectron. Fixed bad-habit Objective-C style naming on the Electron's Interrupt enum. 2016-01-20 21:55:38 -05:00
Thomas Harte
f727582911 Started making first moves towards stripping CSCathodeRayView of its responsibilities. If that can be merely an OpenGL view that presents things, things will be a lot more portable. 2016-01-20 08:21:33 -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
956b90e203 Attempted further to improve latency; added view adjustment for non-4:3 output aspect ratios. The 4:3 is currently hardcoded, so further work will be required. 2016-01-18 23:55:52 -05:00
Thomas Harte
90eef1df74 Tightened to provide lower latency audio, hopefully. 2016-01-18 20:01:06 -06:00
Thomas Harte
03f683d588 Gave the audio queue something a lot like a spin lock on waiting to pipe out audio. 2016-01-18 19:57:18 -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
Thomas Harte
b70fdc2de8 Switched to being explicitly careful about not wrapping around and stomping on data not yet output. 2016-01-18 13:56:20 -06:00
Thomas Harte
ddcc34740b Added lots of debugging output while I attempt to locate the source of audio scratchiness, also simplified manner of dealing with wraparound within the AudioQueue wrapper. 2016-01-18 13:50:19 -06:00
Thomas Harte
781249acf7 Fixed crash. 2016-01-14 20:35:36 -05:00
Thomas Harte
38ffcaa262 Here, at last, is _some_ audio output, at least. 2016-01-14 20:33:22 -05:00
Thomas Harte
afde8dac49 Closed the loop such that audio manages to bubble up into Objective-C. 2016-01-13 22:38:59 -05:00
Thomas Harte
d9a7ef9e46 Edging towards audio output; the speaker is given appropriate input and output rates, and then updated with current divider and enabled/disabled status. 2016-01-13 21:03:43 -05:00
Thomas Harte
d28abdc037 Made an attempt at correct timing, adding support for additional paged ROMs, added file association for .rom. 2016-01-12 22:34:26 -05:00
Thomas Harte
84ba4e2900 Tidied a little, started working towards supporting speaker output. 2016-01-12 22:19:56 -05:00
Thomas Harte
3437781abd Started sketching out an interface for sound generation. Which made me realise that the CRT in CRTDelegate was redundant, since C++ has namespaces. 2016-01-12 16:54:09 -05:00
Thomas Harte
6112f4ef6b Withdrew soft filtering for now; until the sampling frequency is passed on it's not sufficiently rigorous. 2016-01-12 16:42:16 -05:00
Thomas Harte
75d6ec354b Added some very basic filtering in RGB mode. 2016-01-12 16:27:09 -05:00
Thomas Harte
49a36ec9ac Added F12 as break. 2016-01-11 22:35:52 -05:00
Thomas Harte
650077feac Pulled a few things out as constants, zoomed in a little. Still in a 4:3 window though. 2016-01-11 22:18:34 -05:00
Thomas Harte
e93dbdb463 Implemented keyboard input. 2016-01-11 19:48:31 -05:00
Thomas Harte
ce916ebd6a Fixed runaway frame generator. 2016-01-10 23:32:57 -05:00
Thomas Harte
3d6f20b7b9 Output, at last! Though sync is clearly way off. 2016-01-09 21:53:33 -05:00
Thomas Harte
09df218c01 Some output! Showing that three lines of solid sync isn't smart. But here it is. 2016-01-09 21:48:53 -05:00
Thomas Harte
b4f31edea3 Made an attempt to get RGB output mode up and running, and showing at least a box where pixels would be. 2016-01-09 21:32:56 -05:00
Thomas Harte
a900bfed65 Fixed to ensure that frame rendering wraps around, and to properly connect the Electron to its view. Now I need a working pixel shader. 2016-01-09 20:34:22 -05:00
Thomas Harte
716bb3281b This at least now connects up a CRT, though it never talks to it. 2016-01-07 22:26:49 -05:00
Thomas Harte
47a7654c00 Added just enough that this is probably a successful boot. I guess I'm going to need to get invested in graphics next? Hmmm. 2016-01-07 21:01:13 -05:00
Thomas Harte
0db8938d27 Added the option for the CSCathodeRayView to show only a subsection of the full scan area. Zoomed in a little on the 2600. Put in enough piping to give the Electron sight of its ROMs at least. 2016-01-06 23:14:36 -05:00
Thomas Harte
bfd9957c81 You now get an Electron only if you ask for a new file. That'll do for now while it's the only thing that one might want to start without supplying a file. The 6502 now starts from a defined point — being reset. The Electron is starting to grow the absolute most simple buds of its memory map. 2016-01-06 21:09:49 -05:00
Thomas Harte
c69b3256ba Slightly simplified Swift usage. 2016-01-04 23:44:36 -05:00
Thomas Harte
616dc0b57c Okay, so this is the absolute bare minimum about of refactoring and wiring necessary to get the [unimplemented] Electron machine pumping. 2016-01-04 23:40:43 -05:00
Thomas Harte
43ab8bbad5 Okay, so then here's a first shot at the Objective-C -> C++ bridge for the Electron. 2016-01-04 23:16:37 -05:00
Thomas Harte
ab45c1d530 Started working on a shell for the Electron emulation, including factoring out the common CRT delegate -> Objective-C bridging, serial dispatch queue and frameskipping logic from the Atari 2600 shell. 2016-01-04 23:12:47 -05:00
Thomas Harte
22fa024546 Added document XIB. 2016-01-03 20:46:39 -05:00
Thomas Harte
aa0714fe27 Started sketching out an Acorn Electron emulation, as it's a platform I'm familiar with and will force me to figure out PAL decoding. Factored out NTSC-specific parts of the display decoding logic and hence added RGB output mode. 2016-01-03 20:41:43 -05:00
Thomas Harte
96503a3ac5 Switched to nicer nullable/nonnull syntax. 2016-01-02 17:59:21 -05:00
Thomas Harte
feeedbe33b The standard Xcode versioning updates. Nothing of substance. 2016-01-02 17:57:23 -05:00
Thomas Harte
675070c5dd Very, _very_ minor: switched to normal C++ constructor syntax for simple variable initialisation. 2015-12-06 16:53:37 -05:00
Thomas Harte
5feef2110f Added a very basic attempt at shadow mask emulation. 2015-09-24 21:23:16 -04:00
Thomas Harte
63b648be65 Switched down to four samples per pixel, just more than half as many, to fit into a vec4. Edges aren't as smooth but I'm wondering whether it'll make much odds when I implement a shadow mask. 2015-09-17 19:25:15 -04:00
Thomas Harte
5d6bee4927 Of course, being in-phase means being the cosine wave. 2015-09-10 21:30:39 -04:00
Thomas Harte
6a0b4e86c8 An Xcode beta version bump, nothing more. 2015-09-05 17:21:36 -04:00
Thomas Harte
53e699516b Disabled multisampling unless and until I can get the per-pixel cost down. 2015-09-05 17:21:16 -04:00
Thomas Harte
39027b675d Fixed YIQ conversion and made sampling pattern slightly more rational. 2015-09-05 17:09:24 -04:00
Thomas Harte
80cf3d9301 Formally gave the 2600 responsibility for providing the code that decodes one of the things it has put into a buffer into a composite sample. 2015-09-03 12:28:16 -04:00
Thomas Harte
ac8fc9a1a0 Experimenting with pre-encoding luminance and chrominance separation over on the 
CPU as otherwise the GPU does them repetitively and more awkwardly (as it's working purely in floats). It means uploading twice as much data though, so I don't
 know. Still only half as much as the RGBA path of a few days ago. Will experiment.

Also slightly adjusted division of responsibility in the fragment shader per the
 desire to have the `sample` function owned externally.
 2015-09-03 11:15:23 -04:00
Thomas Harte
11acf3f2d3 Made some further minor attempted improvements. 2015-09-02 20:51:56 -04:00
Thomas Harte
161450942a Removed outdated comment. This is better now than it was. 2015-09-02 17:20:23 -04:00
Thomas Harte
0d6094d842 Attempted very basic vectorisation, plus some minor other clean-ups. 2015-09-02 17:17:22 -04:00
Thomas Harte
f60ba4f487 Added a note about horribleness to the source. You never know who's looking. 2015-09-01 22:38:15 -04:00
Thomas Harte
cb6e6e8acb It's the worst fragment shader you'll ever see. The worst. But this attempts NTSC composite video emulation, artefacts included. 2015-09-01 22:36:45 -04:00
Thomas Harte
5fe0cff692 Fine. I'll accept 'bin' files if I must. 2015-08-19 21:36:50 -04:00
Thomas Harte
a62c7f5c56 At last! Discovered CRT scanning bug; was always moving by the full proposed run length along the scan, not the time until the next event. Using this, have implemented proper vertical sync at last (I think). Have disabled scanline banding too, as now everything meets up it's more helpful to be able to see with clarity. 2015-08-18 22:22:47 -04:00
Thomas Harte
462a791ed3 Ensured that no backlog accumulates of cycles to run. Otherwise the background queue was lagging behind. 2015-08-18 21:13:54 -04:00
Thomas Harte
ca6b54536e Added fire and reset inputs. 2015-08-18 20:58:05 -04:00
Thomas Harte
bc805a90fe Wired up joystick directions, at least, and fire button presses get as far as the C++. But there's some latching to figure out before they'll work. 2015-08-18 20:33:24 -04:00
Thomas Harte
902795d61c Switched vertical sync detection method, at least for now. They never happen automatically (I need to fix that) and just always take effect if detected in the lower half of the display. PAL/NTSC is determined just by looking at the refresh rate. 2015-08-18 00:17:03 -04:00
Thomas Harte
a693c081f8 Switched on the appropriate compiler warnings re: signed comparisons and implicit conversions. Fixed all less-than-explicit calls. 2015-08-16 16:08:29 -04:00
Thomas Harte
1cc479affd Removed redundant GL call. 2015-08-16 15:40:03 -04:00
Thomas Harte
391789e75c Removed stray space. 2015-08-13 23:22:51 +01:00
Thomas Harte
cbe76ea5d5 Got rid of the thread hopping in order to redraw the GL view. Which appears to help significantly with total application cost. 2015-08-13 22:01:25 +01:00
Thomas Harte
cc98534f94 Added test for NOP, discovering the undocumented ones to be the incorrect length. 2015-08-13 07:32:50 +01:00
Thomas Harte
6616265d93 Fixed collision tests, added a few more timing tests. 2015-08-13 03:33:45 +01:00
Thomas Harte
dd0f17130a Found and fixed some timing errors in absolute indexed and in (indirect), y addressing modes: neither is able in write or read-modify-write modes to shave a cycle as then can when reading. 2015-08-13 02:58:39 +01:00
Thomas Harte
975836c30f Added a quick snippet test, discovering that I've cut a cycle from read/modify/writes. 2015-08-13 02:18:41 +01:00
Thomas Harte
503d684af0 Added a couple of timing tests, both of which seem to pass for now. 2015-08-13 01:55:23 +01:00
Thomas Harte
e8f70398c1 Added one basic timing test, for now: implied nop should be two cycles. 2015-08-13 01:06:56 +01:00