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
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.
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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
a8b116e217
Turns down the Apple II brightness a little.
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So that light blue is more like a blue.
2018-09-17 20:08:20 -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
Thomas Harte
a38639d099
Eliminates the concept of an iCoordinate.
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Real-life precision appears not to support the idea of sub-sample pixel storage.
2018-09-12 20:05:39 -04:00
Thomas Harte
c6e94bc2a6
Adds missing #include.
2018-09-11 21:55:03 -04:00
Thomas Harte
09dafb1a79
Simplifies and corrects MSX pasting behaviour.
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Now including mapping \n -> \r.
2018-09-11 21:46:28 -04:00
Thomas Harte
36ff2105fb
Updates C-style (bool) casts.
2018-09-11 20:37:15 -04:00
Thomas Harte
5445081c96
It's eight pixels that aren't written in double output mode, not four.
2018-09-10 21:38:05 -04:00
Thomas Harte
6e9cd5cb21
Resolves over-brightness created by over-composition.
2018-09-09 20:30:43 -04:00
Thomas Harte
8d79a1e381
Corrected fat low-res implementation.
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As per comment of awanderin that "the odd addresses don't get their pixels auto-shifted by the hardware as with normal lo-res".
2018-09-09 10:06:21 -04:00
Thomas Harte
d70f5da94e
Attempts an implementation of the undocumented low res + annunciator 3 graphics mode.
2018-09-08 20:51:15 -04:00
Thomas Harte
afeec09902
Gets explicit about DHIRES being annunciator 3; implements four-colour high res mode.
2018-09-06 23:23:19 -04:00
Thomas Harte
0526ac2ee2
Slightly increases const correctness.
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The converters from source data to output pixels do not modify the source data. It's a shame there's no `restrict` in C++.
2018-09-05 11:36:40 -04:00
Thomas Harte
8b661fb90f
Introduces an extra level of indirection for text mapping.
2018-09-05 10:26:08 -04:00
Thomas Harte
dab7d3db1b
Merge branch 'master' into 40ColumnTextCorruption
2018-08-30 20:24:47 -04:00
Thomas Harte
d53b38ec7e
Correction: 0xc011 et al get the keyboard value in bits 0 to 6 and the switch value in bit 7.
2018-08-30 20:18:36 -04:00
Thomas Harte
2e04c4442c
Adds mirrors for keyboard input and the audio toggle.
2018-08-27 21:14:21 -04:00
Thomas Harte
0599d9602e
Ensures no out-of-bounds accesses to inverses on a IIe.
2018-08-26 23:02:31 -04:00
Thomas Harte
234bef2a88
Adds default to make it explicit that fetch_address is initialised.
2018-08-24 22:26:03 -04:00
Thomas Harte
1f491e764e
Nudges visible area slightly to the right.
2018-08-24 22:08:11 -04:00
Thomas Harte
114a43a662
Corrects improper indexing for byte shift.
2018-08-24 21:58:43 -04:00
Thomas Harte
97a89aaf4d
Factors out the stuff of deferred action interleaving, as I suspect it'll come in handy.
2018-08-24 20:04:26 -04:00
Thomas Harte
61e46399dc
About face! There should be no delay on serialisation, but a delay on interpretation-affecting soft switches.
2018-08-22 21:56:45 -04:00
Thomas Harte
e802f6ecc2
Rearranges draw loop around a fixed-size 568-sample line buffer.
2018-08-19 22:31:04 -04:00
Thomas Harte
4209f0e044
Moves memory collection into a separate loop.
2018-08-18 21:54:24 -04:00
Thomas Harte
33576aa2c4
Uses const to ensure output_* are properly constrained.
2018-08-18 21:36:48 -04:00
Thomas Harte
17bf1a64bf
Moves the stuff of generating pixels out of the main loop.
2018-08-18 18:44:31 -04:00
Thomas Harte
f8d46f8f3d
Merge branch 'master' into AppleDelay
2018-08-18 14:11:21 -04:00
Thomas Harte
be01203cc1
Starts to expand the range of supported 6502s.
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This fully implements the NES 6502 because, well, it's virtually no extra work, and ensures that RDY takes effect on write cycles on 65C02s.
2018-08-13 22:17:22 -04:00
Thomas Harte
4d1d19a464
Introduces an intermediate buffer for Apple II video data.
2018-08-12 20:36:08 -04:00
Thomas Harte
cb47575860
Eliminates stdout chatter.
2018-08-11 22:57:54 -04:00
Thomas Harte
434d184503
Corrects deserialisation order in double low res mode.
2018-08-11 22:53:06 -04:00
Thomas Harte
7374c665e8
Corrects regression in video flushing.
2018-08-11 19:57:39 -04:00
Thomas Harte
60ab6f0c2a
Entrusts IIe-esque character logic fully to the ROM.
2018-08-11 18:45:39 -04:00
Thomas Harte
a13eb351da
Implements the Enhanced IIe, other than some text selection errors.
2018-08-11 10:26:30 -04:00
Thomas Harte
76a73c835c
Forces 6502 consumers to declare which model — the original, 65C02 or 65SC02.
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All present machines use a regular 6502.
2018-08-06 20:06:07 -04:00
Thomas Harte
de68e70246
Fixes various IIe video deficiencies.
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Specifically:
* the double-high resolution switches should be read/write; and
* the other IIe-specific switches should cause a video update for real-time effect.
2018-08-05 17:47:23 -04:00
Thomas Harte
ce14cc8677
Flips meaning of analogue input bits, correcting most joystick titles.
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Mysteriously, some functioned correctly before this. But they continue to do so.
2018-08-05 17:36:01 -04:00
Thomas Harte
55f2fccf5e
Extends correct text handling to 80-column mode.
2018-08-04 22:25:29 -04:00
