Thomas Harte
687f4bb3bb
Adds relative and relative long bus patterns.
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Many of the rest cover only one or two opcodes so this puts me at 216/256 opcodes covered; 35/47 bus programs; just more than 5/7 pages.
2020-09-26 20:24:50 -04:00
Thomas Harte
473799cb62
There's not a lot to STP and WAI from a bus program point of view.
2020-09-26 20:18:30 -04:00
Thomas Harte
3dc22a9fd5
Adds implied and immediate modes.
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... for 204/256 opcodes covered.
2020-09-26 17:42:42 -04:00
Thomas Harte
f54b655606
Adds d, x and d, y.
2020-09-26 17:26:17 -04:00
Thomas Harte
d2e868ea2b
Adds (d), y; [d], y; and [d].
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Now covered: 146/256 opcodes, 4/7 pages, 25/47 bus programs.
2020-09-26 16:55:58 -04:00
Thomas Harte
3fc649359a
Transcribes the titles of all remaining bus programs.
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Thereby frames the distance yet to travel.
2020-09-25 22:29:19 -04:00
Thomas Harte
1512ac11da
Adds (d, x) and (d) modes. Albeit by deferring the hard work.
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That's: 122/256 opcodes; 22/47 bus programs, ~3.5/7 pages transcribed. Maybe I'll be able to get to the runtime stuff sooner rather than later?
2020-09-25 22:22:30 -04:00
Thomas Harte
5039cc7bb2
Adds direct page.
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... to cover 106 opcodes.
2020-09-25 22:01:36 -04:00
Thomas Harte
5360a7b4ce
Adds block moves.
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These are fairly specialised, dealing in two data addresses simultaneously.
2020-09-25 21:49:03 -04:00
Thomas Harte
2957a31f40
Adds absolute, x; absolute,y; and accumulator addressing modes.
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Now covered: 80/256 opcodes, from 2/6 pages of the data sheet; or 16/47 bus programs.
2020-09-25 21:16:36 -04:00
Thomas Harte
8c11df52bf
Adds absolute long, x.
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Factors out the commonality of a closing read/write while I'm here.
2020-09-25 19:27:17 -04:00
Thomas Harte
2b7ffcd48f
Takes a run at JSL al.
2020-09-25 18:35:00 -04:00
Thomas Harte
7980a9033e
Adds two-thirds of absolute long.
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Working total: 31 opcodes covered; 10/47ths of bus patterns.
Next is JSL, which I think will require additional operations.
2020-09-25 18:16:49 -04:00
Thomas Harte
125ddfa513
Pays a little attention to runtime storage; completes the first page of bus patterns.
2020-09-25 18:00:02 -04:00
Thomas Harte
636e929607
Adds a check for 8/16-bit redundancy.
2020-09-25 17:42:42 -04:00
Thomas Harte
22c792dc46
Adds enough logic to start serialising instructions to somewhere.
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Possibly extraneous for now, but it means I can start stepping and testing.
2020-09-25 17:18:25 -04:00
Thomas Harte
95af1815c8
Completes absolute indexed indirect micro-ops.
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For the record: this is just six out of forty-seven codes complete. Or about two-thirds of six pages. Plenty to do even before I start trying to interpret these things.
2020-09-24 22:37:31 -04:00
Thomas Harte
d707c5ac95
Switches to generators with stable pointers; adds 2a.
2020-09-24 22:27:20 -04:00
Thomas Harte
5c9192e5e6
Switches to generators for spitting out micro-ops.
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Hopefully with a lot of parts to factor out naturally.
2020-09-24 17:36:11 -04:00
Thomas Harte
72b5584042
Immediately runs afoul of a read/write difference in the specs between 8/16-bit mode that suggests maybe this isn't a good structure.
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Perhaps generators of some sort?
2020-09-23 22:28:15 -04:00
Thomas Harte
f9045b5352
Rounds out declaration of the absolutes.
2020-09-23 22:23:23 -04:00
Thomas Harte
f87fe92bc8
Begins a meandering road towards the 65816.
2020-09-23 22:14:42 -04:00
Thomas Harte
669d8e64ab
Merge pull request #838 from TomHarte/MTKViewRace
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Resolves a minor MTKView main-thread race condition.
2020-09-22 22:18:57 -04:00
Thomas Harte
9447aa38be
Removes debugging printf.
2020-09-22 22:13:54 -04:00
Thomas Harte
a781c3eb4d
Resolves thread-unsafe access of _view.bounds.
2020-09-22 22:13:37 -04:00
Thomas Harte
c0b1308dfd
Merge branch 'Vic20Tests'
2020-09-22 22:08:29 -04:00
Thomas Harte
2d9dd6704a
Merge branch 'master' of github.com:TomHarte/CLK
2020-09-22 22:07:47 -04:00
Thomas Harte
94dba70bbe
Merge pull request #837 from TomHarte/Vic20Tests
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Further improves 6522 emulation.
2020-09-22 22:07:34 -04:00
Thomas Harte
022ec20e75
Tries to add semantic meaning to the various auxiliary control fields.
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To consider: decoding at set?
2020-09-22 20:50:39 -04:00
Thomas Harte
41f69405d8
Don't decrement timer 1 from the system clock when in PB6 mode.
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TODO: rest of PB6 mode.
2020-09-21 22:39:49 -04:00
Thomas Harte
5741e22e29
Switch back to debug-by-default builds.
2020-09-20 18:22:13 -04:00
Thomas Harte
8e242eea54
Ensures timer-linked PB7 output is actually output.
2020-09-20 15:03:26 -04:00
Thomas Harte
703065a0a5
Takes a run at timer-linked PB7 output behaviour.
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Seemingly sufficiently to pass the VICE test (which I've transcribed), though with some guesswork.
2020-09-20 14:51:59 -04:00
Thomas Harte
291aa42fe1
Corrects test target.
2020-09-19 21:20:37 -04:00
Thomas Harte
8fc3496cc9
Merge pull request #836 from TomHarte/Vic20Tests
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Corrects a couple of minor VIA timer issues
2020-09-17 21:56:43 -04:00
Thomas Harte
e807a462a1
My new reading is that only a write to the counter should affect the interrupt flag.
2020-09-17 21:31:29 -04:00
Thomas Harte
18790a90ae
Ensures timer 2 doesn't use timed behaviour when in pulse mode.
2020-09-17 21:09:32 -04:00
Thomas Harte
21afc70261
Adds formal data-sheet names.
2020-09-17 19:00:46 -04:00
Thomas Harte
7bb74af478
Merge pull request #835 from TomHarte/ErrantScan
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Allows for permitted 1/32nd timing error in `time_multiplier_`.
2020-09-17 18:17:37 -04:00
Thomas Harte
894269aa06
Allows for permitted 1/32nd timing error in time_multiplier_.
2020-09-17 18:12:21 -04:00
Thomas Harte
8b16da9695
Merge pull request #834 from TomHarte/FloatingSpeaker
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Resolves lowpass-speaker position aliasing
2020-09-16 19:05:54 -04:00
Thomas Harte
f783ec6269
Since input and output are floating point, using an integer Stepper is not appropriate.
2020-09-16 18:53:44 -04:00
Thomas Harte
22c9734874
Merge pull request #832 from TomHarte/MetalScanTarget
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Adds a Metal ScanTarget, for macOS.
2020-09-16 18:19:58 -04:00
Thomas Harte
a17d0e428f
Protects against some further uninitialised values.
2020-09-16 18:15:57 -04:00
Thomas Harte
bb57f0bcc7
Ensures all 6560 properties have a valid default value.
2020-09-16 17:24:18 -04:00
Thomas Harte
b1aefbfe85
Separates asserts.
2020-09-15 23:24:06 -04:00
Thomas Harte
061288f5a7
Add the Macintosh to the Mac kiosk mode informal test set.
2020-09-15 22:49:00 -04:00
Thomas Harte
5a53474536
Ensure MultiKeyboard deconstructs properly.
2020-09-15 22:48:44 -04:00
Thomas Harte
18d0fff8da
Graduates the Atari ST.
2020-09-15 22:46:38 -04:00
Thomas Harte
0ac2145740
Add Metal/OpenGL distinction.
2020-09-15 22:43:39 -04:00
