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Commit Graph

129 Commits

Author SHA1 Message Date
Thomas Harte
f4d13d1f6f Takes a run at the bus side of honouring Ensoniq sequence points. 2020-11-26 17:14:46 -05:00
Thomas Harte
6808ad6f5d Adds a getter for the interrupt line. 2020-11-26 16:44:35 -05:00
Thomas Harte
7a8920ee38 Takes a stab at next_sequence_point. 2020-11-26 16:41:11 -05:00
Thomas Harte
4870506f6e Implements skip_audio. 2020-11-26 16:24:48 -05:00
Thomas Harte
6f47f9d67c Corrects placement of address bits. 2020-11-26 16:15:40 -05:00
Thomas Harte
8093f67173 Ensures video interrupts can't be missed by a suitably-timed access. 2020-11-26 16:11:03 -05:00
Thomas Harte
72884f37c3 It's still interrupt-deficient, but fills in additional Ensoniq audio generation. 2020-11-26 16:03:28 -05:00
Thomas Harte
8edb3fcd5f Attempts to obey accumulator size in determining sample end. 2020-11-26 15:07:29 -05:00
Thomas Harte
fdd102df52 Resolves border colour resets. 2020-11-26 13:13:48 -05:00
Thomas Harte
03a893dc74 Quick refactor: this clearly isn't a VideoBase, it's the full implementation. 2020-11-26 12:54:20 -05:00
Thomas Harte
56de2512ae Adds a further safety assert. 2020-11-25 23:34:30 -05:00
Thomas Harte
cdc2311045 Enables fuzzing, adds a definite no-op write. 2020-11-25 23:33:55 -05:00
Thomas Harte
eec27c3406 Reaches for marginally more coherent ADB data. 2020-11-25 17:34:00 -05:00
Thomas Harte
098a22aa95
Avoid out-of-bounds access of double_bytes. 2020-11-24 09:38:07 -05:00
Thomas Harte
7ede3d2b9e Corrects collection of palettes other than palette 0. 2020-11-23 21:00:26 -05:00
Thomas Harte
e7160fe3c3 Rounds out the IIgs video hardware, bugs aside. 2020-11-23 20:58:32 -05:00
Thomas Harte
9d61665014 Attempts to add colour double [low/high] resolution output. 2020-11-23 19:05:18 -05:00
Thomas Harte
d2938ad7c8 Eliminate magic constants. 2020-11-23 18:36:44 -05:00
Thomas Harte
46f7ff07f7 Adds support for fill mode. 2020-11-22 21:55:21 -05:00
Thomas Harte
a34f294ba8 Pulls out commonalities re: NTSC colour, ensures mixed modes on a line works. 2020-11-22 21:29:40 -05:00
Thomas Harte
cd7d080b7a Corrects low-resolution mode. 2020-11-22 20:52:42 -05:00
Thomas Harte
b0936b6ef4 Resolves high-resolution output.
Yet to optimise, but working.
2020-11-22 19:10:05 -05:00
Thomas Harte
8fae74f93e Reintroduces delay bit, reverses phase.
There are stray columns of errors, but otherwise this is almost correct.
2020-11-22 11:06:14 -05:00
Thomas Harte
fca48e4b66 Makes hasty attempt to shift 'NTSC' in the most natural direction. 2020-11-21 23:39:58 -05:00
Thomas Harte
3b2ea37428 Slightly cleans up. 2020-11-21 22:53:26 -05:00
Thomas Harte
3cba3a5ac0 Corrects card mask test outside of bank $00. 2020-11-21 22:22:27 -05:00
Thomas Harte
4b024c5787 Starts to make some attempt at classic II modes. 2020-11-21 18:07:51 -05:00
Thomas Harte
4a42de4f18 Attempts to add 5.25" drive support to the IIgs.
I want to try some classic software.
2020-11-20 21:37:17 -05:00
Thomas Harte
d00e5d23ef Takes a second shot at the MemoryWrite constructor complaint. 2020-11-19 22:28:10 -05:00
Thomas Harte
2c9ce116a2 Resolves various GCC-reported issues. 2020-11-19 22:21:20 -05:00
Thomas Harte
3512352c32 Attempt to use the most-significant relevant bits for sample position. 2020-11-19 22:13:09 -05:00
Thomas Harte
4d9372c52f Also takes a stab at swap mode. 2020-11-19 21:56:49 -05:00
Thomas Harte
1d288b08b6 Attempts the two most basic forms of DOC output.
Sans interrupts. Or register reads of any variety.
2020-11-19 21:19:27 -05:00
Thomas Harte
f3c7c11772 Register writes now reach the audio thread. 2020-11-18 21:52:03 -05:00
Thomas Harte
4b9fe805e9 Sets up a queue to push memory writes onto the audio thread. 2020-11-18 21:40:56 -05:00
Thomas Harte
a7051e4e42 Strip this forceinline until I've satisfied myself that it works in declarations. 2020-11-18 21:40:25 -05:00
Thomas Harte
34794223b4 For now, at least, c800–cfff is always built-in ROM.
Otherwise I probably need to extend my c3 logic to cover the other built-in cards (?)
2020-11-18 19:49:45 -05:00
Thomas Harte
96cf617ee6 Advances slightly. I think I need a custom queue for RAM writes. 2020-11-18 19:48:53 -05:00
Thomas Harte
69dddf34b9 Adds bonus sanity check. 2020-11-18 19:47:56 -05:00
Thomas Harte
8f4597f742 Hacks in double text.
Actually, only one error: it should start half a column earlier. All 'double' output should. TODO.
2020-11-18 19:47:22 -05:00
Thomas Harte
98347cb1c3 Starts in the direction of audio support. 2020-11-18 18:39:11 -05:00
Thomas Harte
bb80e53021 Reduces frequency of video flushes. 2020-11-16 21:55:41 -05:00
Thomas Harte
952891d1b6 Improves commentary. 2020-11-16 21:46:35 -05:00
Thomas Harte
6dfad6a44b Slightly reduces logging.
Hopefully soon I can tear the whole lot out.
2020-11-16 21:46:19 -05:00
Thomas Harte
e4c5bfdd5c Takes a repeat shot at proper shadowing.
I think the Apple IIgs Technical Reference explains how these bits interact, and I just had inhibit_all_pages off all on my own.
2020-11-16 19:54:12 -05:00
Thomas Harte
9a55eb56ea Attempts to provide saner sequence point behaviour. 2020-11-16 19:00:11 -05:00
Thomas Harte
9206ab5dc3 Adds notes to self; implements get_next_sequence_point for video, allowing per-line interrupts. 2020-11-16 14:42:50 -05:00
Thomas Harte
7e39550fc0 Attempts to make JustInTimeActor sequence-point aware.
With the objective of chopping out a lot of future boilerplate.
2020-11-15 21:58:18 -05:00
Thomas Harte
c3f5fbd300 Picks a better framing compromise for classic and new video modes. 2020-11-15 19:14:43 -05:00
Thomas Harte
1db713fec1 Attempts more meaningful super high-res pixel output.
With a timing hack as noted.
2020-11-15 18:36:24 -05:00