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
|
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
|
cabad6fc05
|
Optimises the inner TMS loops slightly.
|
2018-02-21 21:29:17 -05:00 |
|
Thomas Harte
|
2fe0ceb52a
|
Sets TMS input gamma.
|
2018-01-13 22:19:41 -05:00 |
|
Thomas Harte
|
2f59226300
|
Fixes: DiskROM drive motor control, track_for_sectors' sides.
|
2018-01-07 20:02:40 -05:00 |
|
Thomas Harte
|
793ef68206
|
Implements unconditional force interrupt for the WD.
|
2018-01-07 19:42:38 -05:00 |
|
Thomas Harte
|
2ffde4c3c2
|
Corrects SCC volume errors.
Which were leading to substantial overflow.
|
2018-01-07 09:59:00 -05:00 |
|
Thomas Harte
|
57ddfcd645
|
Corrects AY counter type.
|
2018-01-06 23:16:01 -05:00 |
|
Thomas Harte
|
fc16e8eb8c
|
Makes first attempt at actually implementing the SCC.
|
2018-01-06 23:15:42 -05:00 |
|
Thomas Harte
|
655b971976
|
Establishes that there is such as a thing as a Konami SCC.
Creates one, ensures it appears in memory when intended to, lets it handle reads and writes. It currently does nothing.
|
2018-01-06 20:15:55 -05:00 |
|
Thomas Harte
|
bcc7ad0c30
|
Corrects bad TMS sprite selections on the top row of the screen.
|
2018-01-06 16:26:11 -05:00 |
|
Thomas Harte
|
2dc1d4443e
|
Separates LowpassFilter and SampleSource.
|
2017-12-18 21:39:23 -05:00 |
|
Thomas Harte
|
f8a2459c91
|
Corrects two lingering adaptation errors in the Vic-20.
|
2017-12-17 21:43:08 -05:00 |
|
Thomas Harte
|
ac80d10cd8
|
Separates the component parts of running an audio stream: task deferral, filtering and generation.
Walking towards improving opportunities for composition.
|
2017-12-17 21:26:06 -05:00 |
|
Thomas Harte
|
ec4c259695
|
Removes unused file.
|
2017-12-14 21:19:09 -05:00 |
|
Thomas Harte
|
ad50b6b1fb
|
Corrects TMS' get_time_until_interrupt when the next interrupt is exactly a frame away.
|
2017-12-14 21:12:51 -05:00 |
|
Thomas Harte
|
3da323c657
|
Corrects lingering free TMS read.
|
2017-12-14 20:30:56 -05:00 |
|
Thomas Harte
|
aca7842ca4
|
Better documents and tidies the TMS9918.
|
2017-12-14 20:27:26 -05:00 |
|
Thomas Harte
|
c36de4f640
|
Attempts real VRAM access timings, correcting a frame timing error as I go.
|
2017-12-13 22:37:27 -05:00 |
|
Thomas Harte
|
5d0c33d545
|
Corrects occasional TMS sprite glitching.
|
2017-12-12 22:19:33 -05:00 |
|
Thomas Harte
|
b0616ee10c
|
Adds one-before-the-graphics as a line for video collection.
Thereby corrects sprites on line 0.
|
2017-12-12 21:35:33 -05:00 |
|
Thomas Harte
|
798cdba979
|
8255: update_outputs now affects only those ports designated as outputs.
|
2017-12-10 17:55:37 -05:00 |
|
Thomas Harte
|
f957344ac4
|
Corrects TMS failure to show background through tile layer.
|
2017-12-09 23:15:04 -05:00 |
|
Thomas Harte
|
b3fbd0f352
|
Tidies up some of the TMS' magic constants.
|
2017-12-09 23:08:07 -05:00 |
|
Thomas Harte
|
042edc72f7
|
Adjusts TMS declared timing so as to be in-phase with an NTSC clock, and adopts an alternative palette.
|
2017-12-09 22:28:34 -05:00 |
|
Thomas Harte
|
943418c434
|
Reformulates TMS sprite plotting to set the collision flag and to support magnified sprites.
|
2017-12-09 20:30:12 -05:00 |
|
Thomas Harte
|
7d7e2538bd
|
Introduces a computationally simplified inner loop for TMS graphics modes, modelled on that for text.
|
2017-12-09 16:02:33 -05:00 |
|
Thomas Harte
|
7a544731e2
|
Makes minor tidiness improvements to the TMS.
|
2017-12-08 22:20:21 -05:00 |
|
Thomas Harte
|
e1914b4f16
|
Attempts to add a proper intermediate buffer for sprites to allow the split of collection and output.
|
2017-12-08 22:12:39 -05:00 |
|
Thomas Harte
|
8653eb8b55
|
Corrects various latent errors in optimised TMS video collection.
|
2017-12-06 20:24:29 -05:00 |
|
Thomas Harte
|
a4f0a260fd
|
Reformulates the TMS graphics mode fetch loop to try to eliminate heavy conditionality. Temporarily introduces some sprite selection issues.
|
2017-12-05 22:39:03 -05:00 |
|
Thomas Harte
|
d4a53e82bb
|
Replaces manual retread of memcpy with standard memcpy .
|
2017-12-05 18:21:34 -05:00 |
|
Thomas Harte
|
6eedc99286
|
Makes substantial optimisations to text mode.
Character optimisations to come.
|
2017-12-04 22:18:51 -05:00 |
|
Thomas Harte
|
a473338abe
|
Makes minor type conversion fixes.
|
2017-12-03 22:24:48 -05:00 |
|
Thomas Harte
|
ad3df36c20
|
Corrects sprite information collection to cover all four.
|
2017-12-03 14:51:55 -05:00 |
|
Thomas Harte
|
38b11893e8
|
Takes first steps towards sprite display on the TMS.
|
2017-12-02 22:13:43 -05:00 |
|
Thomas Harte
|
e4534775b0
|
Cleans up and zooms in on the TMS slightly.
|
2017-12-02 17:48:31 -05:00 |
|
Thomas Harte
|
fe0cdc8d69
|
Corrects colour fetching in TMS Graphics II to be a function of row.
|
2017-12-02 16:10:29 -05:00 |
|
Thomas Harte
|
ca26ce8400
|
Slightly corrects style errors in the Cartridge hierarchy, and introduces mapping of .ROM to the MSX when appropriate.
|
2017-12-02 16:01:30 -05:00 |
|
Thomas Harte
|
d3dd8f3f2a
|
Implements screen 2 addressing.
|
2017-12-02 14:05:52 -05:00 |
|
Thomas Harte
|
3c8d2d579d
|
Resolves remaining sources of text mode instability.
|
2017-11-30 22:48:07 -05:00 |
|
Thomas Harte
|
edcbb3dfed
|
Tidies code a little and thereby uncovers and corrects one cause of output instability.
|
2017-11-30 22:19:53 -05:00 |
|
Thomas Harte
|
9c8158753e
|
Makes a first attempt at displaying text mode.
|
2017-11-30 21:35:26 -05:00 |
|
Thomas Harte
|
ee84f33ab5
|
Ensures that the 9918 admits that it is the source of interrupts.
|
2017-11-29 21:33:43 -05:00 |
|
Thomas Harte
|
aa4eef41d8
|
Seeks to introduce MSX interrupts.
|
2017-11-29 20:31:55 -05:00 |
|
Thomas Harte
|
ecd7d4731b
|
Advances emulation to showing what looks like appropriate text on screen.
|
2017-11-28 21:27:15 -05:00 |
|
Thomas Harte
|
563aa051e4
|
Simplifies code a little and gives something on screen.
|
2017-11-28 21:19:28 -05:00 |
|