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8,481 Commits 9 Branches 118 Tags 496 MiB
364059551c
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2713 Commits

Author SHA1 Message Date
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
012084b37b Fix exclusive fill, sizing, eliminate ECS call-ins. 
The clock test now proceeds further, but still doesn't seem to pass.
 2021-11-24 17:25:32 -05:00
Thomas Harte
7af5737ec5 Switch to LOG. 2021-11-24 16:15:40 -05:00
Thomas Harte
0df8173536 Merge branch 'master' into Amiga 2021-11-24 08:58:03 -05:00
Thomas Harte
f5d3d6bcea Splits the lowpass filter into push and pull variants. 2021-11-21 15:37:29 -05:00
Thomas Harte
a8a99f647f Further improves framing. 2021-11-21 08:13:55 -05:00
Thomas Harte
ff68b26c44 Push HSYNC 11 slots over, to its proper position, and add a frame crop. 2021-11-20 12:39:50 -05:00
Thomas Harte
a94b4f62fd Takes a stab at attached sprites. 2021-11-19 14:19:47 -05:00
Thomas Harte
bcc959d938 Sprites: deconflate vertical and modification flags; disarm on CTL not POS. 2021-11-19 08:03:10 -05:00
Thomas Harte
cf25d8a378 Increase logging (but leave it disabled). 2021-11-19 08:01:23 -05:00
Thomas Harte
693d46f8ea Mask by index, not colour. 2021-11-18 05:36:38 -05:00
Thomas Harte
3496ebd1d7 Constrain sprite fetches to Chip RAM. 2021-11-17 17:49:42 -05:00
Thomas Harte
be763cf7fe Expose joystick to the world. 2021-11-17 15:33:46 -05:00
Thomas Harte
c3b4bee210 Adds a joystick class. 2021-11-17 14:26:51 -05:00
Thomas Harte
6df0227ab1 Hacks in a basic effort at dual playfields. 2021-11-16 18:26:27 -05:00
Thomas Harte
2a3a7fa8a0 Reset will_request_interrupt. 2021-11-15 16:00:35 -05:00
Thomas Harte
50a6496399 Avoids over-greedy DMA. 2021-11-15 12:31:15 -05:00
Thomas Harte
c99dee86dd Adds missing low -> high actions, implements more transitions. 2021-11-15 12:29:32 -05:00
Thomas Harte
0c5bb9626b Separates state transitions and tests. 2021-11-15 05:29:28 -05:00
Thomas Harte
a9971917f5 Attempts a translation of Commodore's documentation. 2021-11-14 14:54:33 -05:00
Thomas Harte
4c62611da3 Adds enough state machine to get into the near-incomprehensible stuff on the right. 2021-11-14 10:48:50 -05:00
Thomas Harte
47f36f08fb Switches to a synchronous audio state machine; renames advance -> advance_dma. 
I can worry about how to just-in-time things once I better understand the hardware in general.
 2021-11-13 15:53:41 -05:00
Thomas Harte
f906bab1a5 Provides feedback on interrupt flags, starts on state machine. 2021-11-13 11:05:39 -05:00
Thomas Harte
fffc03c4e4 Propagates time to the audio subsystem. 2021-11-12 15:30:52 -05:00
Thomas Harte
0a94184d6b Provides a greater wealth of audio data. 2021-11-11 09:24:15 -05:00
Thomas Harte
7be3578497 Adds a target for audio writes. 2021-11-09 07:11:23 -05:00