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Author SHA1 Message Date
Thomas Harte
bdfc36427c Implements MegaCart support. 2018-03-02 18:40:01 -05:00
Thomas Harte
74dfe56d2b
Expands documentation of NMI setting. 
Given that it was previously incorrect, explains logic behind request_status_ and last_request_status_ setting. Also takes the opportunity to ensure that NMI is 'sampled' at the same time as IRQ; whether the next thing should be the NMI routine now occurs one cycle before the end of any instruction. That's an assumption for now. Testing to come.
 2018-03-02 11:10:02 -05:00
Thomas Harte
6cce9aa54e
Merge pull request #353 from TomHarte/ColecoVision 
Adds provisional emulation of the ColecoVision
 2018-03-01 22:33:34 -05:00
Thomas Harte
ba68b7247b Adds latest files to SConstruct. 2018-03-01 22:19:50 -05:00
Thomas Harte
b02e4fbbf6 Corrects NMI receipt to be genuinely edge triggered. 
Previously a caller that signalled NMI set multiple times would trigger multiple NMIs.
 2018-03-01 22:04:56 -05:00
Thomas Harte
59b4c7314d Merge branch 'master' into ColecoVision 2018-03-01 22:01:26 -05:00
Thomas Harte
d328589bd0
Merge pull request #354 from TomHarte/MSXTiming 
Corrects a counting error in the MSX.
 2018-03-01 22:00:53 -05:00
Thomas Harte
b05d2b26bf Corrects a counting error in the MSX. 2018-03-01 21:59:51 -05:00
Thomas Harte
86239469e7 Allows SN76489 consumers to apply an additional divider that reduces computation. 2018-03-01 18:51:05 -05:00
Thomas Harte
7890506b16 Gives the SN76489 its proper dividers and personalities. 2018-02-28 22:36:03 -05:00
Thomas Harte
83f73c3f02 Installs additional safeguards against unsafe deconstruction. 2018-02-28 22:15:22 -05:00
Thomas Harte
87760297fc Fixes underpumping of SN76489. 
Audio works now. Though I still need properly to confirm who owns dividers in practice. I think probably all division should be within the SN.
 2018-02-27 22:59:29 -05:00
Thomas Harte
5b854d51e7 Corrects out-of-bounds access. 2018-02-27 22:45:45 -05:00
Thomas Harte
d4df101ab6 Makes a first attempt at implementing the SN76489. 2018-02-27 22:25:12 -05:00
Thomas Harte
0ad2676640 Adds a class for the SN76489 and wires it into the ColecoVision. 2018-02-26 22:04:34 -05:00
Thomas Harte
a074ee2071 Possibly fixes ColecoVision input mapping. 
Also provides symbolic input from the Mac.
 2018-02-25 22:47:47 -05:00
Thomas Harte
204d5cc964 Extends JoystickMachine protocol to cover ColecoVision use case. 
Also thereby implements input on the ColecoVision, in theory at least. No input is being fed though, so...
 2018-02-25 19:08:50 -05:00
Thomas Harte
23d15a4d6c The ColecoVision now accepts and loads cartridges. 2018-02-24 18:26:44 -05:00
Thomas Harte
23c47e21de Proceeds the ColecoVision to booting. 2018-02-24 18:14:38 -05:00
Thomas Harte
5530b96446 Wired up a class and analyser for a ColecoVision. 2018-02-23 22:47:15 -05:00
Thomas Harte
99d28a172b
Merge pull request #352 from TomHarte/TZXCompletion 
Makes an attempt at implementing all missing TZX 1.20 blocks.
 2018-02-22 21:37:46 -05:00
Thomas Harte
d83178f29d Makes an attempt at implementing all missing TZX 1.20 blocks. 
Towards that aim, simplifies CSW handling so that even regular RLE compression uses a static grab of file contents.
 2018-02-22 21:28:12 -05:00
Thomas Harte
d9d5ffdaa2
Merge pull request #351 from TomHarte/TMSFlip 
Optimises the inner TMS loops slightly.
 2018-02-21 21:33:04 -05:00
Thomas Harte
cabad6fc05 Optimises the inner TMS loops slightly. 2018-02-21 21:29:17 -05:00
Thomas Harte
a4dc9c0403
Merge pull request #350 from TomHarte/MinorMSXOptimisations 
Introduces modest MSX optimisations
 2018-02-19 20:53:20 -05:00
Thomas Harte
270723ae72 Forces the MSX's perform_machine_cycle into the Z80. 2018-02-19 19:54:42 -05:00
Thomas Harte
b215cf83d5 Eliminates implicit update queue flush, as unnecessary. 2018-02-19 19:54:18 -05:00
Thomas Harte
f237dcf904 Avoids deadlock when one bestEffortUpdate action implies another. 2018-02-19 18:44:12 -05:00
Thomas Harte
fc81bfa59b Eliminates tape player call when tape is not playing. 2018-02-19 18:36:31 -05:00
Thomas Harte
832ac173ae
Merge pull request #349 from TomHarte/CheaperTapeChecks 
Reduces cost of checking for fast-tape usage
 2018-02-19 16:58:03 -05:00
Thomas Harte
3673cfe9be Pulls method call for tape fast loading checks out of inner loop for the Vic, Electron and ZX80/81. 2018-02-19 16:57:24 -05:00
Thomas Harte
6aaef97158 Breaks Mac machine shutdown deadlock. 2018-02-19 16:48:03 -05:00
Thomas Harte
b0ab617393 Simplifies inner loop test for MSX fast loading. 2018-02-19 16:24:47 -05:00
Thomas Harte
6780b0bf11 Corrects error preventing fast loading preference from making it to machines on the Mac. 2018-02-19 16:24:28 -05:00
Thomas Harte
9c0a440c38
Merge pull request #347 from TomHarte/DynamicAnalysis 
Introduces dynamic selection of MSX MegaROM type
 2018-02-19 16:10:46 -05:00
Thomas Harte
2439f5aee5 Corrects some whitespace errors. 2018-02-19 16:06:46 -05:00
Thomas Harte
8265f289bd Improves documentation within the new parts. 2018-02-19 16:03:17 -05:00
Thomas Harte
9728bea0a7 Updates scons file and corrects missing headers; backports to C++11. 2018-02-19 05:13:41 -08:00
Thomas Harte
fc9e84c72e Eliminates unsafe optimisation. 
Also likely to be unhelpful as and when multiple machines are in play.
 2018-02-18 22:09:27 -05:00
Thomas Harte
7d75e864b1 Ensures thread safety of usages of bestEffortLock. 2018-02-18 22:09:03 -05:00
Thomas Harte
a005dabbe3 Corrects some minor outstanding data races. 2018-02-18 16:37:07 -05:00
Thomas Harte
c8a4432c63 Makes an attempt to transfer audio outputs during dynamic analysis. 2018-02-18 15:23:15 -05:00
Thomas Harte
7b420d56e3 Removed state mirroring in the machine-specific Mac UI classes. 2018-02-14 21:46:50 -05:00
Thomas Harte
ddf1bf3cbf Reintroduces options selection for the Mac. 
For everything except the Vic-20, anyway. That has a somewhat outdated notion of what an options panel should be, corresponding to the work yet to do on its analyser.
 2018-02-12 21:46:21 -05:00
Thomas Harte
7ea4ca00dc Ensures perform_parallel doesn't lock up if all machines complete prior to reaching condition.wait. 2018-02-11 21:06:51 -05:00
Thomas Harte
6b8c223804 Adds an extra termination condition for the multimachine. 2018-02-11 21:05:59 -05:00
Thomas Harte
23105956d6 Fixes spurious unrecognised miss detection for the ASCII mappers. 2018-02-11 20:51:39 -05:00
Thomas Harte
d751b7e2cb Marginally reformats for current style. 2018-02-11 20:32:59 -05:00
Thomas Harte
f02989649c Corrects effect of pc_is_outside_bios. 2018-02-11 20:32:45 -05:00
Thomas Harte
dcf313a833 Changes equivocal semantics. 2018-02-11 20:32:21 -05:00