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Commit Graph

1771 Commits

Author SHA1 Message Date
Thomas Harte
a72d70e707 Enabled code coverage calculation for unit tests. 2017-03-11 17:44:56 -05:00
Thomas Harte
add14fb43a Made an attempt to implement Tigervision paging. 2017-03-11 17:44:35 -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
bce5abd33b Made an attempt to spot Tigervision paging requests. 2017-03-11 13:12:23 -05:00
Thomas Harte
3f36eeb071 Merge pull request #105 from TomHarte/ParkerBros
Introduces detection and emulation of the Parker Bros paging scheme
2017-03-11 13:05:17 -05:00
Thomas Harte
33bda2d40c Switched to image inspection for RAM guesses rather than disassembly. Which fixes the other Parker Bros titles. 2017-03-11 13:04:23 -05:00
Thomas Harte
2b5e3a600e Made a first attempt at implementing the Parker Bros pager within the emulation. 2017-03-11 12:43:12 -05:00
Thomas Harte
8dbf9fd302 Started adding an attempt to distinguish between Atari and Parker Bros paging schemes. 2017-03-11 11:41:18 -05:00
Thomas Harte
9c72ce5bd2 Ensured a settling delay is permitted before an NTSC/PAL decision is made. To avoid false switches just due to startup. 2017-03-06 19:37:35 -05:00
Thomas Harte
ec2762509b Merge pull request #104 from TomHarte/SyncDetection
Improves vertical sync recognition
2017-03-06 19:18:52 -05:00
Thomas Harte
e63229a5e5 Pulled vertical sync detection entirely outside the loop, and gave it greater perspective. 2017-03-06 19:15:33 -05:00
Thomas Harte
ad73379d1c Took vertical sync detection logic entirely out of the loop. 2017-03-05 20:17:55 -05:00
Thomas Harte
abd4d2c42a Extended has-RAM test to check all banks. 2017-03-05 11:58:52 -05:00
Thomas Harte
79784a8e57 Followed tip: missiles are locked to the position after four output pixels, not four input pixels. 2017-03-04 22:23:50 -05:00
Thomas Harte
61b8fc1e2f Merge pull request #103 from TomHarte/CRTCounting
Fixes NTSC colour cycle count
2017-03-04 17:32:45 -05:00
Thomas Harte
4751615623 Fixed NTSC colour cycle count, and hence the 2600's reported line lengths and phase offset. 2017-03-04 17:31:39 -05:00
Thomas Harte
cccdc558e7 Merge pull request #102 from TomHarte/6532Accuracy
Improves 6532 counting accuracy
2017-03-04 17:04:43 -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
837cccdf83 Switched to deferred updates for the 6532. 2017-03-04 14:58:28 -05:00
Thomas Harte
a3fcd15980 Loosened sync charge level requirement. 2017-03-01 22:16:56 -05:00
Thomas Harte
93d1573481 Added a fix for certain homebrews. 2017-03-01 07:59:25 -05:00
Thomas Harte
893a5dd007 Added an artificial low pass filter, attempting to capture post-digital effects. 2017-02-28 21:29:55 -05:00
Thomas Harte
026b418b4a Ensured filtered 1:1 audio resampling is applied. 2017-02-28 21:27:38 -05:00
Thomas Harte
06dd98b23c Pulled the reset time for horizontal blank extend up to position 224. 2017-02-28 20:28:54 -05:00
Thomas Harte
2a81ae1dec Now required: at least four stores for RAM to be detected. 2017-02-28 20:28:14 -05:00
Thomas Harte
1625b9c7f9 Merge pull request #101 from TomHarte/CommaVid
Adds detection and emulation of the CommaVid paging scheme
2017-02-27 20:53:19 -05:00
Thomas Harte
184c8ae707 Extended to emulate the CommaVid. 2017-02-27 20:50:59 -05:00
Thomas Harte
8f8b103224 Slightly tidier. Also in the interim: confirmed no remaining false positives or negatives from the existing published set. 2017-02-27 08:42:43 -05:00
Thomas Harte
1af415a88e Okay, this is a bit desperate, but worth investigation. 2017-02-27 08:39:53 -05:00
Thomas Harte
fe07cd0248 Made another attempt to distinguish. 2017-02-27 08:06:57 -05:00
Thomas Harte
a3d339092e Corrected callers of the 6502 disassembler. 2017-02-27 07:56:59 -05:00
Thomas Harte
837216ee9a Adjusted semantics to allow for more complicated mappings, e.g. whereby supplied data repeats itself within a range. 2017-02-27 07:49:33 -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
b24cd00a39 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 21:58:43 -05:00
Thomas Harte
0273860018 Sought to weed out further false positives on CommaVid, partly by introducing a record of internal calls, to pair with the now confusingly named outward_calls. 2017-02-26 21:58:09 -05:00
Thomas Harte
82c089cde4 Factored out paging type detection and, from that, took out 2k cartridge detection. Added an attempt at a CommaVid detector, which does not currently work. 2017-02-26 21:24:54 -05:00
Thomas Harte
997707a45b Merge pull request #100 from TomHarte/SuperChipDetection
Adds detection and emulation of the Super Chip
2017-02-26 18:04:50 -05:00
Thomas Harte
9d7985c1e1 Added Super Chip emulation. 2017-02-26 17:47:29 -05:00
Thomas Harte
8b1ec827e0 Made an initial, very naive attempt to recognise two types of expanded cartridge: those with a superchip and those with a CBS RAM+, in both cases by looking for instructions that appear to write into cartridge space. 2017-02-26 17:11:57 -05:00
Thomas Harte
153525f23d Extended quality of known address read/write/modify mapping, and started recording internal accesses in addition to external. 2017-02-26 17:10:33 -05:00
Thomas Harte
3101dc94a7 Merge pull request #98 from TomHarte/TIAImprovements
Reimplements the Atari TIA, as a discrete component
2017-02-26 15:14:59 -05:00
Thomas Harte
e6a84fd26b Attempted a hardware-correct implementation of missile-to-player latching. This completes the last of the **knowing** inaccuracies. The rest are as-of-yet unwitting. 2017-02-26 15:12:31 -05:00
Thomas Harte
440467ea3e Started communicating which copy is being requested. 2017-02-26 13:39:25 -05:00
Thomas Harte
98376de9ad Started returning 'no effect' for pot ports, rather than doing nothing. Still very much TODO though. 2017-02-25 22:58:58 -05:00
Thomas Harte
e61e355251 Moved to the maximum possibly required queue length of 4. Though the emulated 2600 should never need more than 2 slots as per the current calling pattern, it's not a contractual guarantee. 2017-02-25 17:25:10 -05:00
Thomas Harte
c898c8a99e Ensured the missiles and ball don't attempt to enqueue. Because I don't think they're supposed to. 2017-02-25 17:13:22 -05:00
Thomas Harte
8c9062857c Added a single-slot queue for player objects to defer drawing, thereby deferring pixel lookup. Which I think is correct. Though more slots might be needed. 2017-02-25 17:10:24 -05:00
Thomas Harte
77ed4ddc05 Slightly simplified ready line release logic. 2017-02-23 21:08:32 -05:00
Thomas Harte
82f392fada This should be the other way around. I want whichever is later. 2017-02-22 21:54:49 -05:00