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Commit Graph

6993 Commits

Author SHA1 Message Date
Thomas Harte
2957a31f40 Adds absolute, x; absolute,y; and accumulator addressing modes.
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.
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.
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.
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.
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.
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.
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
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
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.
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.
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.
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
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
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
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
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
Thomas Harte
bc8787ded6 Improves macro safety. 2020-09-15 22:26:33 -04:00
Thomas Harte
69d21daaa3 Improves commentary. 2020-09-15 22:21:05 -04:00
Thomas Harte
5651ef606d Resolves failure to advance video address when output is blocked. 2020-09-15 22:20:06 -04:00
Thomas Harte
b831b31382 Adds a further sanity check. 2020-09-15 17:04:04 -04:00
Thomas Harte
2fd5cc056c Adds std::atomic_thread_fences, but these seem not to be a magic bullet. 2020-09-15 16:34:34 -04:00
Thomas Harte
82dbdf7dfc Switches to using regular linear interpolation for supersampling. 2020-09-14 22:36:00 -04:00
Thomas Harte
eb9903cd10 Defensively disables allocation of anything outside of visible lines. 2020-09-14 22:29:05 -04:00
Thomas Harte
227e98d6d7 Slightly simplifies control flow. 2020-09-14 22:27:25 -04:00
Thomas Harte
35476063b7 Resolves potential data races. 2020-09-14 21:07:50 -04:00