d97348dd38
Eliminates dangling uses of printf.
2019-03-02 18:07:05 -05:00
601961deeb
Wires through set_display_type.
2018-11-29 20:44:21 -08:00
64465f97b6
Starts towards reintroducing the proper mechanisms for selecting a display type at runtime.
2018-11-28 17:53:33 -08:00
5618288459
Reduces visible area, producing a tighter crop.
2018-11-25 22:32:12 -05:00
ee89be6730
Removes many stray spaces.
2018-11-23 22:32:32 -05:00
770d7e90e9
Removes stale sampling functions.
2018-11-22 22:47:29 -05:00
c5d9bf2c12
Optimises slightly for black borders.
...
Specifically to help to debug proper display of unused lines in the new scan target.
2018-11-17 18:23:42 -05:00
15b1176841
Ensures no border output if space is not allocated.
2018-11-14 22:32:33 -05:00
9dff13cbbf
Re-establishes output from the machines with 9918s and derivatives.
2018-11-14 22:25:19 -05:00
6d277fecd5
Makes ScanTarget a little more communicative and orthogonal.
2018-11-10 19:52:57 -05:00
f6562de325
Possibly adds enough for the Electron and ZX80 to start outputting dummy lines.
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Let's see!
2018-11-03 23:40:39 -04:00
b40211d2c0
Starts to bend 'CRTMachine' to a world farther from owning the GPU relationship.
2018-11-03 21:54:25 -04:00
da4d883321
Adds first, incomplete attempts to talk to a ScanTarget from the CRT.
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Does away with the hassle of `unsigned` while I'm here; that was a schoolboy error.
2018-11-03 19:58:44 -04:00
8652d8b23d
(Mostly) randomises the 9918 start position.
2018-10-26 21:02:56 -04:00
bb09762029
Introduces extra delays to VRAM access.
2018-10-26 20:19:08 -04:00
05a5c7120e
Shunts CRAM dots into their proper place.
2018-10-26 20:06:51 -04:00
521d603902
Adds a first attempt at CRAM dot output. With a TODO.
2018-10-26 19:26:46 -04:00
0587b9f257
Edges to within millimetres of CRAM dots.
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... but all the way up to bedtime.
2018-10-25 23:12:03 -04:00
5accd8cf08
Fixes broken implementation of 9918 multicolour mode.
2018-10-24 22:40:38 -04:00
a8645f80bf
Introduces 'non-exclusive' emulator-space keyboards.
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i.e. sets of keys that don't amount to an entire keyboard in the modern sense. Experimentally used by the Master System for its reset key.
2018-10-24 21:59:30 -04:00
d61c3a9442
Fixes sprite list termination in 224- and 240-line modes.
2018-10-24 19:53:46 -04:00
00e7958a97
Separates request for an SMS2 VDP from current graphics mode.
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Thereby fixes various minor segments of Codemasters games.
2018-10-23 22:19:45 -04:00
2f995eb622
Adjusts vertical timing for display height.
2018-10-23 21:20:44 -04:00
2cbd28478d
Allows the sprite terminator to be specified.
2018-10-23 20:01:47 -04:00
7855145ebd
Slightly adjusts pixel output time.
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i.e. respective to reading; sprite collision times now seem correct.
2018-10-22 19:58:33 -04:00
883680731a
Uses explicit state to determine whether a pixel target has been requested.
2018-10-21 21:18:41 -04:00
c07f9fed99
Corrects test and implementation to pass the exhaustive VDP interrupt prediction test.
2018-10-21 18:42:49 -04:00
16f08eb654
Slightly tweaks Master System timing numbers.
2018-10-21 13:58:34 -04:00
30b99f0049
Fixes a couple of interrupt prediction errors.
2018-10-20 18:25:28 -04:00
b61de65b43
Restores proper phase with the CPU.
2018-10-19 23:18:16 -04:00
0822c96ce0
Implements the proper row counter values for > 192 row modes.
2018-10-19 22:37:56 -04:00
f9a6c00493
Makes first attempt to support PAL timings.
2018-10-19 21:36:13 -04:00
9bc09046c0
Attempts to ensure that sprites can go off the top of the screen.
2018-10-18 21:48:57 -04:00
512f085891
Ensures proper left clipping of sprites.
2018-10-18 21:14:16 -04:00
da00c832f5
Corrects colour fetching for multicolour text mode.
2018-10-18 20:38:00 -04:00
8ff265c3a1
Corrects multicolour text mode.
2018-10-18 20:25:42 -04:00
1fc88c4eff
Corrects off-by-one error in line fetching coroutines.
2018-10-16 21:36:31 -04:00
58ca74c68a
Resolves right-side TMS sprite droppages.
2018-10-16 21:25:08 -04:00
b4f871a2ef
Corrects first line sprite row selection.
2018-10-16 21:16:29 -04:00
0f7bf6d6c6
Resolves attempt to output graphics on the line one before the display.
2018-10-16 21:02:31 -04:00
5dfe7d8596
Corrects most of TMS sprite drawing.
2018-10-16 20:49:04 -04:00
231009b901
Makes faulty attempt to reintroduce TMS-mode sprites.
2018-10-16 20:00:06 -04:00
1c5f939aea
Reintroduces tiles and some element of sprites in regular TMS mode.
2018-10-14 21:52:13 -04:00
d66979c68f
Switched to a very large number of buffers, and resolved stupid attempt to reassign a reference.
2018-10-14 18:19:11 -04:00
6c09abc6cb
Makes a flawed attempt to reformulate this exactly as two separate processes on a common clock with an interchange buffer.
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Specifically because closer inspection of the TMS modes shows it isn't quite valid to model output of one line as having fully completed prior to fetching of the next. So some sort of extra buffer is required. At which point it is most natural to continue with the logic that each fetch routine is oriented around the fetching process for a single line, and each output routine has the same view, suggesting separate read/write addresses.
Something is wrong though, as video data is being output too rapidly (I think) and with occasional sync issues (again: subject to investigation).
2018-10-14 16:23:45 -04:00
9e52ead09a
Ensures sprite scanning doesn't improperly set collision flag; that slot 151 is filled.
2018-10-12 19:50:48 -04:00
9ab0c54426
Eliminates faulty attempt to satisfy SMSVDP vertical counter test.
2018-10-12 18:57:07 -04:00
f6af6778ab
Moves scrolling latch to proper position and implements 4-window fetching offset.
2018-10-11 22:36:27 -04:00
6a94dda60d
Selects potentially-correct interrupt times.
2018-10-11 21:42:09 -04:00
82b7944599
Fixes horizontal counter wrapping.
2018-10-11 20:37:29 -04:00
Thomas Harte