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4,392 Commits 8 Branches 121 Tags 496 MiB
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4392 Commits

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Author SHA1 Message Date
Thomas Harte
e6510dc87b Attempts to get at least as far as picking visible sprite indices. 2018-10-06 19:27:19 -04:00
Thomas Harte
76f3b9f6ba Fixed: paging writes don't obstruct RAM. 2018-10-06 14:26:00 -04:00
Thomas Harte
7830cda912 Implements line querying and most of line interrupts. 2018-10-04 22:50:35 -04:00
Thomas Harte
aac97a8983 Re-revokes fine scroll on the top two lines when requested. 2018-10-04 19:18:15 -04:00
Thomas Harte
ca26dfcd61 Correct Master System palette writes. 2018-10-04 19:12:31 -04:00
Thomas Harte
858721a7a5 Added left border hiding. 2018-10-04 18:52:23 -04:00
Thomas Harte
89db1d6a6a Switches to a more accurate means of left-padding. 2018-10-04 18:44:49 -04:00
Thomas Harte
de4e5c40aa Implements horizontal scrolling lock. 2018-10-03 23:28:33 -04:00
Thomas Harte
05248ab990 Starts to reimplement Master System output. 2018-10-03 23:13:21 -04:00
Thomas Harte
252f47a425 Ensures no pixel output on line one before end, and adds a temporary debugging test. 2018-10-02 22:59:20 -04:00
Thomas Harte
be52b31b5c Attempts fully to revive text mode. 2018-10-02 22:05:58 -04:00
Thomas Harte
23c3fa6993 Fixed: it's the SMS that has 8 sprites, not text mode (which has none). 2018-10-02 22:01:43 -04:00
Thomas Harte
499fc62187 Sets things up for implementation of the inner mode-specific logic. 2018-10-02 21:58:09 -04:00
Thomas Harte
1dd5272190 Ensures real-time output of all areas, to ensure proper palette response. 2018-10-02 21:18:28 -04:00
Thomas Harte
5361120353 Restores a stable frame. 2018-10-02 21:05:30 -04:00
Thomas Harte
60bab8fdf1 Starts to reformulate TMS collection as coroutines. 
For the time being, thereby breaks all video. A static screen of the border colour is all you'll see.
 2018-10-01 23:03:17 -04:00
Thomas Harte
cc99b0f532 Fixes typo. 2018-09-30 20:48:55 -04:00
Thomas Harte
91aa8f9295 Amps up colour content a little. 2018-09-30 20:47:26 -04:00
Thomas Harte
e9328d819e Switches to RGB output, at least for development. 2018-09-30 20:47:03 -04:00
Thomas Harte
48ece623e7 Adds the Sega Master System to SConstruct. 2018-09-30 20:46:38 -04:00
Thomas Harte
23191efc05 Starts writing and referring to colour RAM for colours. 2018-09-29 19:50:13 -04:00
Thomas Harte
0d8af010b6 Takes a stab at tile reversal and vertical scrolling. 2018-09-28 22:37:10 -04:00
Thomas Harte
7b9bb772ca Corrected to give a not-exactly-indexed-correctly approximation of what's on display. 2018-09-28 21:03:51 -04:00
Thomas Harte
f7e211c245 Makes first attempt to put something vaguely like the Master System tile map on screen. 2018-09-28 20:39:14 -04:00
Thomas Harte
43bcb6415b Merge branch 'master' into MasterSystemVDP 2018-09-27 22:38:15 -04:00
Thomas Harte
15ec4aaa43
Merge pull request #554 from TomHarte/65C02s 
Corrects Rockwell and WDC references.
 2018-09-27 22:37:45 -04:00
Thomas Harte
364859467f Corrects Rockwell and WDC references. 
Also shuffles the NES CPU type up into the top position, so this is a strict progression in terms of functionality.
 2018-09-27 22:36:45 -04:00
Thomas Harte
35c2e74af8 Attempts to establish a coroutine-ish structure for access patterns. 
The Master System mode, inevitably, is the test case.
 2018-09-27 22:33:41 -04:00
Thomas Harte
19482a563f Attempts to explicitly make room for the SMS VDP mode. 2018-09-27 21:22:57 -04:00
Thomas Harte
2e4c4c3e91 Makes some attempt to implement paging. 
This causes several of the 32kb games to be recognised by the BIOS and permitted to start, so it really really may be time to stop deferring work on the VDP.
 2018-09-24 21:34:42 -04:00
Thomas Harte
7515fa8a98 Ensures the SG1000 gets an unadulterated TMS and SN. 2018-09-23 22:24:29 -04:00
Thomas Harte
5b9e7213dd Adds a couple of joystick inputs. 
SG1000 titles all seem to work now.
 2018-09-23 21:55:07 -04:00
Thomas Harte
2253341904 This now goes far enough for the only SG1000 game I'm testing to start up. 
Which hopefully gives me as much as I need to implement joypads, etc, and definitively get to just the VDP being outstanding.
 2018-09-23 17:42:42 -04:00
Thomas Harte
e155dc8d6e Adds fairly standard memory map indirection. 2018-09-23 17:36:30 -04:00
Thomas Harte
00b2db4fb9 Ensures the Master System is informed when it should pretend to be an SG1000. 2018-09-23 16:34:47 -04:00
Thomas Harte
f59386f523 Adds just enough input logic that the Sega sound now plays. 2018-09-23 16:05:37 -04:00
Thomas Harte
9683c8f664 Advances towards the Master System actually receiving interrupts. 2018-09-23 15:58:23 -04:00
Thomas Harte
38a1fde3bf Attempts to permit Master System interrupts. 2018-09-23 00:07:46 -04:00
Thomas Harte
40c7a63fb5 Makes a first attempt at Master System IO decoding. 2018-09-22 23:45:29 -04:00
Thomas Harte
d9e65cd758 Ensures neither the ColecoVision nor the MSX processes mid-cycles. 2018-09-21 22:53:35 -04:00
Thomas Harte
e511261b04 Adds a Master System class, so that SMSs can end up somewhere. 2018-09-21 22:13:07 -04:00
Thomas Harte
0d01346ad4 Advertises SMS support and goes as far as realising it needs to spawn a Master System. 2018-09-20 22:04:28 -04:00
Thomas Harte
e7f4babf41 Starts taking steps towards SMS/GG and V9938/9958 support. 
Specifically: routine namespace stuff, plus the intention to move to a table-based operation+cost version of timing. Reordering works fine for the TMS, and probably would also for the SMS/GG, but it'd be problematic with the command engine of the V9938/9958 and maintaining a consistent set of code is easier.
 2018-09-17 22:59:16 -04:00
Thomas Harte
a29a8e292b
Merge pull request #552 from TomHarte/AppleIIBrightness 
Turns down the Apple II brightness a little.
 2018-09-17 20:09:06 -04:00
Thomas Harte
a8b116e217 Turns down the Apple II brightness a little. 
So that light blue is more like a blue.
 2018-09-17 20:08:20 -04:00
Thomas Harte
e582b4c8ca Eliminates some dangling references to iCoordinate. 2018-09-13 19:35:15 -04:00
Thomas Harte
3b70dbfebe
Merge pull request #550 from TomHarte/ElectronCorruption 
Resolves potential Electron output errors
 2018-09-12 21:04:20 -04:00
Thomas Harte
868cd5cb09 Improves alignment request. 2018-09-12 20:27:02 -04:00
Thomas Harte
dec18d9acc Restores full pixel output to the Electron. 2018-09-12 20:25:30 -04:00
Thomas Harte
a7508bc2ae Switching explicitly to one pixel per sample eliminates the need for a bookender. 2018-09-12 20:11:17 -04:00