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5138216ba1
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Author SHA1 Message Date
Thomas Harte
5138216ba1
Merge pull request #978 from TomHarte/Amiga 
Introduces nascent Amiga emulation
 2021-12-07 04:18:53 -05:00
Thomas Harte
de1f5686a8 Reenable hardened runtime. 2021-12-07 04:05:10 -05:00
Thomas Harte
c983678fcd Reenable app sandbox. 2021-12-07 03:57:58 -05:00
Thomas Harte
2b0415d552 Attempt to avoid off-by-one buffer reads, add modulation. 2021-12-06 19:28:40 -05:00
Thomas Harte
066e4421e8 Attempt volcntrld. 2021-12-06 06:35:08 -05:00
Thomas Harte
f02a241249 Inserts an additional reload. 2021-12-05 17:47:12 -05:00
Thomas Harte
a5fe1e4259 Largely debugs audio state machine. 
I think I'm still missing an address reload somewhere though, and attachment doesn't actually push.
 2021-12-05 15:27:35 -05:00
Thomas Harte
9b80563443 Exposes targets for modulation. 2021-12-05 06:38:55 -05:00
Thomas Harte
91b5da06e3 Perform reload on Disabled -> WaitingForDummyDMA. 2021-12-04 19:17:40 -05:00
Thomas Harte
7320f96ae7 Capture attachment flags. 2021-12-04 18:02:43 -05:00
Thomas Harte
fdf2b9cd7b Add local data pointers. 2021-12-04 17:58:41 -05:00
Thomas Harte
bfc70a1b60 Ensure interrupt request bits always propagate. 2021-12-04 16:50:42 -05:00
Thomas Harte
aff7a93106 Move DMAFlags to Flags.hpp. 2021-12-04 08:26:28 -05:00
Thomas Harte
3b027c4593 Switch and -> or for testing transitions from ::PlayingLow. 2021-12-04 08:24:41 -05:00
Thomas Harte
42d3bdd373 Adds a begin_state template. 2021-12-04 07:20:17 -05:00
Thomas Harte
57789092c1 Keep audio fetches in bounds. 2021-12-03 07:16:21 -05:00
Thomas Harte
6bc5268cbd Reload period counter on low -> high transition. 2021-12-02 18:43:02 -05:00
Thomas Harte
887ab705d1 Add missing <cassert>. 2021-12-02 13:00:25 -05:00
Thomas Harte
ff6ddaed2e Full scale is 65536. 2021-12-02 12:55:11 -05:00
Thomas Harte
e6fe36f45c Add buffer-length assert; add <tuple> where std::tuple_size is used. 2021-12-02 12:53:20 -05:00
Thomas Harte
3a26f6b8bf Ensure full buffer provision. 2021-12-02 12:52:43 -05:00
Thomas Harte
06b6f85d55 Correct stereo. 2021-12-02 11:15:29 -05:00
Thomas Harte
d6f1ea50a6 Switch to slightly more straightforward presumption of no data wanted. 2021-12-02 09:41:16 -05:00
Thomas Harte
9554869886 Simplify DMA logic. 2021-12-02 09:33:02 -05:00
Thomas Harte
364059551c Add extra notes per errata, plus bonus state code repetitions. 2021-12-02 09:30:52 -05:00
Thomas Harte
06340b1ad7 Advance DMA pointer, treat audio as signed, request data on low -> high transition. 
There's now some audio, sometimes when there should be. But it's not correct.
 2021-12-01 18:34:54 -05:00
Thomas Harte
d23511860d Attempts audio output. 2021-12-01 06:01:58 -05:00
Thomas Harte
a8dd4660b2 Adds a pipeline for audio output. 2021-12-01 05:37:58 -05:00
Thomas Harte
eb3a0eb3c7 Attempt full implementation of collisions. 2021-11-29 18:39:33 -05:00
Thomas Harte
cd0148e0bc Switch to a default 1mb of Chip RAM. 2021-11-29 16:55:45 -05:00
Thomas Harte
8584ee609f Support a fetch window start on line 0. 2021-11-28 05:37:49 -05:00
Thomas Harte
373847e2b7 Avoid posting redundant key events. 2021-11-28 05:31:00 -05:00
Thomas Harte
84f7d8dfc2 Factors out pixel generation, adds HAM. 2021-11-28 05:06:30 -05:00
Thomas Harte
e057a7d0dd Attempts to implement sprite/playfield priorities. 2021-11-27 15:03:46 -05:00
Thomas Harte
7bab15bf99 Minor copy improvements. 2021-11-27 11:38:41 -05:00
Thomas Harte
dac40630fd Adds support for the Blitter-busy flag to WAIT and SKIP. 2021-11-27 11:36:15 -05:00
Thomas Harte
33bfa1b81c Move BitplaneShifter adjacent to expand_bitplane_byte. 2021-11-26 18:29:09 -05:00
Thomas Harte
8fc27dc292 Moves bitplane collection and shifter out of Chipset.[h/c]pp. 2021-11-26 18:16:24 -05:00
Thomas Harte
f8e8f18be5 Switch to std::clamp. 2021-11-26 18:10:29 -05:00
Thomas Harte
8b38c567d2 Add missing #include for std::clamp. 2021-11-26 18:08:39 -05:00
Thomas Harte
cd53e42d79 Resolve operator precedence. 2021-11-26 18:08:10 -05:00
Thomas Harte
bea6cf2038 Move mouse and joystick into a separate file, give a common parent. 2021-11-26 17:50:47 -05:00
Thomas Harte
eca80f1425 Sprites: avoid magic constants, ensure proper DMA resumption. 2021-11-26 16:02:18 -05:00
Thomas Harte
1c0962e53c Move sprites into their own source file. 2021-11-26 15:30:31 -05:00
Thomas Harte
4b21549ff4 Add a couple of static asserts. 2021-11-26 15:23:54 -05:00
Thomas Harte
30d7b0129b Correct sprite ordering within pairs. 2021-11-26 11:58:50 -05:00
Thomas Harte
ce6877d6e4 Sprites: infer part of DMA state from slot, no access during blank. 
Also sets the proper vertical blank length.
 2021-11-26 09:37:52 -05:00
Thomas Harte
0ab5177637 Allow DMAState::FetchStopAndControl on y == v_stop_. 2021-11-25 14:29:12 -05:00
Thomas Harte
276cbfa505 Simplify sprite state machine. 
This now better matches the explanation given on Page 133 of the Amiga System Programmer's Guide.
 2021-11-25 14:08:55 -05:00
Thomas Harte
610c85a354 Correct test logic. 
All tests now pass.
 2021-11-25 04:11:20 -05:00