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CLK
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3413 Commits

Author SHA1 Message Date
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 c485097eed Fix bool combination. 2024-04-22 22:06:09 -04:00
Thomas Harte f86e9fe086 Eliminate impossible conditional. 2024-04-22 21:58:49 -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