194 Commits

Author	SHA1	Message	Date
Thomas Harte	02ee3a7804	Turf out old debugging cruft.	2024-05-06 20:36:00 -04:00
Thomas Harte	d90eedfc8c	Adjust bit polarity, meaning.	2024-04-30 22:49:26 -04:00
Thomas Harte	6a2261d217	Merge branch 'master' into DiskReady	2024-04-30 22:38:07 -04:00
Thomas Harte	3d61861737	Ensure switch is complete.	2024-04-30 22:26:19 -04:00
Thomas Harte	7545786436	Ensure extra line types are used.	2024-04-30 22:22:18 -04:00
Thomas Harte	a997b6c677	Wire drives for IBM-style RDY.	2024-04-30 22:18:17 -04:00
Thomas Harte	72d4f638aa	Merge branch 'master' into Interlacing	2024-04-30 22:08:57 -04:00
Thomas Harte	b15ff6d442	Support interlaced video timing.	2024-04-30 22:06:08 -04:00
Thomas Harte	42aea2663c	Add automatic runtime frame-rate limiter.	2024-04-30 21:38:37 -04:00
Thomas Harte	71c5a1d419	Avoid repeated trans comparison.	2024-04-29 22:35:01 -04:00
Thomas Harte	03c3da7338	Bifurcate Zone enum, possibly to help compiler.	2024-04-29 22:34:46 -04:00
Thomas Harte	c7747ec5a0	Remove a conditional from the hot path.	2024-04-29 22:16:06 -04:00
Thomas Harte	5a84e98256	Fix trans for instruction fetches.	2024-04-29 21:54:59 -04:00
Thomas Harte	dfaea5a922	Reduce floppy access cost.	2024-04-28 22:40:54 -04:00
Thomas Harte	f4da417c3a	Merge pull request #1366 from TomHarte/VIDCDelays ... Add various VIDC output latencies.	2024-04-28 22:39:29 -04:00
Thomas Harte	fa7fff86eb	Eject invalid specialisation.	2024-04-28 22:20:26 -04:00
Thomas Harte	d480f9eae2	Reinstate all missing video modes.	2024-04-28 21:49:04 -04:00
Thomas Harte	4f1aef90b8	Relocate pixel collection and cursor shifting.	2024-04-26 21:29:30 -04:00
Thomas Harte	24f4538eb7	Do faulty restoration of 4bpp mode.	2024-04-25 22:50:24 -04:00
Thomas Harte	38d096cad6	Begin new state machine, losing all non-cursor pixels.	2024-04-25 22:01:38 -04:00
Thomas Harte	b82af9c471	Fix vertical timing; don't miss border colour changes.	2024-04-24 20:47:11 -04:00
Thomas Harte	becb6ce2e0	Fix two more not-really-an-issue warnings.	2024-04-23 22:20:13 -04:00
Thomas Harte	265d151879	Fix data aborts.	2024-04-22 22:08:09 -04:00
Thomas Harte	0775e3ad58	This is an 8-bit value.	2024-04-19 22:35:43 -04:00
Thomas Harte	ea3eef3817	Put interrupts into pipeline, without delay.	2024-04-19 22:21:23 -04:00
Thomas Harte	83eac172c9	Revoke in-pipeline interrupts. ... I'm unclear on what timing should apply here really.	2024-04-19 21:46:09 -04:00
Thomas Harte	5b13d3e893	Attempt the prefetch portion of a pipeline.	2024-04-19 21:30:15 -04:00
Thomas Harte	e6c4454059	Provide a means for SWI interception.	2024-04-18 22:13:58 -04:00
Thomas Harte	d464ce831a	Add did_set_pc.	2024-04-18 19:30:07 -04:00
Thomas Harte	07984a2f8b	Resolve various warnings.	2024-04-17 22:15:05 -04:00
Thomas Harte	30c2c65b77	Eliminate hot-path switch.	2024-04-17 21:36:39 -04:00
Thomas Harte	b63178132d	Move trans tests inside switch.	2024-04-17 21:29:42 -04:00
Thomas Harte	fac94a5d36	Reduce MIPS. Until other performance issues can be resolved.	2024-04-16 22:32:00 -04:00
Thomas Harte	06fd91f002	Fix period, table lookup.	2024-04-16 22:12:10 -04:00
Thomas Harte	c3d4d0ee38	Introduce panning, threading.	2024-04-16 21:56:34 -04:00
Thomas Harte	30cca54e6c	Diagnostically try for a square wave.	2024-04-13 22:10:34 -04:00
Thomas Harte	6ac6e48b95	Attempt audio output.	2024-04-13 21:54:50 -04:00
Thomas Harte	779794632e	Generate volume ramp.	2024-04-13 20:23:47 -04:00
Thomas Harte	88bb16f261	Install proper filter frequency.	2024-04-13 15:34:39 -04:00
Thomas Harte	c134c7bdc2	Fix: signal is 'flyback', not sync.	2024-04-10 21:53:38 -04:00
Thomas Harte	6c6cda3db5	Use clocking hints.	2024-04-09 22:22:03 -04:00
Thomas Harte	a29f246536	Move to more natural position of ownership.	2024-04-09 22:10:07 -04:00
Thomas Harte	d9d675a74f	Fix scan status scale.	2024-04-09 21:56:42 -04:00
Thomas Harte	d62ea95889	Make some intimation towards audio.	2024-04-09 21:53:40 -04:00
Thomas Harte	e2e951ad0b	Fix layout.	2024-04-09 21:49:35 -04:00
Thomas Harte	a5a653d684	Factor vsync state into IO reads.	2024-04-09 21:49:00 -04:00
Thomas Harte	6123350895	Improve state guesswork.	2024-04-09 21:24:08 -04:00
Thomas Harte	ec73c00c3b	Silence the routine stuff of interrupt masks.	2024-04-09 20:57:57 -04:00
Thomas Harte	dd24f5f4f3	Don't latch video addresses until almost the last minute.	2024-04-09 20:56:10 -04:00
Thomas Harte	169298af42	Plumb through disk insertion. ... Surprisingly: some things now load.	2024-04-08 21:15:40 -04:00