227 Commits

Author	SHA1	Message	Date
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	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	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
Thomas Harte	eeaccb8ac0	Implements clear_all_keys.	2021-11-08 17:49:09 -05:00
Thomas Harte	8ef9a932aa	Adds inclusive fill test; fixes inclusive fills.	2021-11-07 14:26:13 -08:00