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10,432 Commits 10 Branches 121 Tags 499 MiB
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156 Commits

Author SHA1 Message Date
Thomas Harte
bfa167fcdf Make attempt at the TP background-colour bit. 2023-02-26 13:42:59 -05:00
Thomas Harte
62d381065e Change 9938 identification number. 2023-02-21 19:35:11 -05:00
Thomas Harte
a28b5bdeea Only on the Sega are line interrupts disabled by a read of S#0. 2023-02-20 23:43:23 -05:00
Thomas Harte
44ac948bb2 Add expansion RAM, albeit not yet into the command engine. 2023-02-20 22:27:30 -05:00
Thomas Harte
88eaa4ff02 [Mostly] avoid magic address constants; avoid duplication of TMS fetching logic. 2023-02-17 21:59:39 -05:00
Thomas Harte
c140f370fe Attempt to copy and paste my way to working type-1 sprites. 2023-02-16 22:46:19 -05:00
Thomas Harte
bbccc5d6d6 Route other holdover TMS modes through the Yamaha logic. 2023-02-16 22:07:18 -05:00
Thomas Harte
3f2a5929a3 Consolidate text output and support blinking; add sprites-enabled flag. 2023-02-15 20:18:56 -05:00
Thomas Harte
bf0ed2813c Make faulty attempt at 80-column text. 2023-02-14 20:13:51 -05:00
Thomas Harte
5c7367b262 Route Yamaha 40-column text mode appropriately. 2023-02-13 22:24:39 -05:00
Thomas Harte
169d7a7418 Fix[/revert]: the fetch pointer should be _ahead_. 2023-02-13 21:10:14 -05:00
Thomas Harte
914a9e0c84 Yamaha: don't touch address at all unless a RAM access. 2023-02-11 22:43:29 -05:00
Thomas Harte
8768ee1504 Merge branch 'MSX2' of github.com:TomHarte/CLK into MSX2 2023-02-11 22:40:03 -05:00
Thomas Harte
8e6c36bb15 Yamaha: don't part-modify address. 2023-02-11 10:35:42 -05:00
Thomas Harte
3c3efe3e22 Don't be so fussy. 2023-02-06 22:16:42 -05:00
Thomas Harte
a3df106f92 Reset write phase only upon traditional register accesses. 2023-02-06 20:32:24 -05:00
Thomas Harte
b538407386 Introduce separate state for palette entries. 2023-02-06 19:12:02 -05:00
Thomas Harte
f9c88fd598 Fix memory mask; mildly improve commentary. 2023-02-05 22:51:16 -05:00
Thomas Harte
67755c3811 Attempt [H/L]MMM. 2023-02-04 21:29:44 -05:00
Thomas Harte
a2786e6266 Invest Colour with its own logic, including potential emptiness. 2023-02-04 21:14:20 -05:00
Thomas Harte
46d009f27b Add logical fill. 2023-02-04 10:31:41 -05:00
Thomas Harte
6d315b4660 Switch to specifying number of bits, to reduce potential error. 2023-02-02 12:12:11 -05:00
Thomas Harte
debdad350d Don't allow a disabled screen to interfere with Yamaha addressing. 2023-02-02 12:03:33 -05:00
Thomas Harte
0d4dc214fb Merge branch 'MSX2' of github.com:TomHarte/CLK into MSX2 2023-02-02 11:38:45 -05:00
Thomas Harte
8f5c7fcabc Merge branch 'MSX2' of github.com:TomHarte/CLK into MSX2 2023-02-01 22:25:12 -05:00
Thomas Harte
115acf835e Vertical state is actually tristate. 2023-02-01 22:25:00 -05:00
Thomas Harte
c0fec8db15 Clean up macro. 2023-02-01 15:05:21 -05:00
Thomas Harte
f0e70f18fd Fix seeding of output_pointer_. 2023-02-01 14:59:42 -05:00
Thomas Harte
9d2841bf6a Reenable full ram pointer capture. Thanks @PatrickvL ! 2023-02-01 14:55:33 -05:00
Thomas Harte
1264600bab Shorten long lines. 2023-02-01 14:18:36 -05:00
Thomas Harte
002d27d9c2 Resolve various type conversion errors, and reduce duplication. 2023-02-01 14:17:49 -05:00
Thomas Harte
a315384e30 Provide context for byte-by-byte commands. 2023-01-31 21:29:55 -05:00
Thomas Harte
c5c722ae56 Generalise axis steps; begin HMMV. 2023-01-31 13:35:39 -05:00
Thomas Harte
872b9e5021 Predict Yamaha horizontal retrace interrupts. 2023-01-30 21:33:47 -05:00
Thomas Harte
492a170b20 Implement much of Yamaha line interrupts. 2023-01-30 21:24:53 -05:00
Thomas Harte
bc4c54800e Type out just a little of status register 1. 2023-01-30 20:20:33 -05:00
Thomas Harte
8f20cb93e9 Note missed status accesses. 2023-01-29 21:20:50 -05:00
Thomas Harte
73e79b14ea Use Yamaha palette pervasively. 2023-01-29 21:17:00 -05:00
Thomas Harte
3142f5c21d Be overt about what replaces LineMode. 2023-01-29 21:04:15 -05:00
Thomas Harte
6d7f189ce7 Attempt the full panoply of logical pixel modes, across all graphics modes. 2023-01-29 18:28:49 -05:00
Thomas Harte
a91a5b8d07 Refer to actual field. 2023-01-29 18:02:09 -05:00
Thomas Harte
4cdcd3ac7d Retain logical operation, take colour combination outside the loop. 2023-01-29 13:29:19 -05:00
Thomas Harte
0576451102 Be overt about colour direction. 2023-01-29 13:22:56 -05:00
Thomas Harte
1e646eb57b Improve transfer flag for LMMC. 2023-01-28 21:45:05 -05:00
Thomas Harte
d3c446d91b Take a shot at LMMC. 2023-01-28 21:30:45 -05:00
Thomas Harte
c6cda7c401 Switch to absolute placement of deferred events; properly serialise commands. 2023-01-28 11:55:12 -05:00
Thomas Harte
7e69e33ec2 Use paletted Yamaha border colour. 2023-01-27 22:42:02 -05:00
Thomas Harte
95e00dd958 Take slightly wrong-headed steps towards proper command timing. 2023-01-27 22:20:36 -05:00
Thomas Harte
8a673a697b Further adapt internal terminology. 2023-01-27 12:30:09 -05:00
Thomas Harte
d42b6df570 Retain extra pattern name address bits. 2023-01-27 06:44:11 -05:00
Thomas Harte
81b00c6d97 Add notes. 2023-01-26 22:25:10 -05:00
Thomas Harte
1e5f751bc0 Require STOP in order to stop. 2023-01-26 22:08:36 -05:00
Thomas Harte
9a65fffe16 That's PSET, not POINT. 2023-01-26 22:02:40 -05:00
Thomas Harte
515fa22bfe Implement point. 2023-01-26 21:52:41 -05:00
Thomas Harte
66ac089cc2 Deallocate. 2023-01-26 21:49:32 -05:00
Thomas Harte
5d5098acb2 Hack in vertical scrolling. 2023-01-26 21:38:51 -05:00
Thomas Harte
75acbd2d6c A quick hack shows some part of the MSX logo. 2023-01-26 21:31:49 -05:00
Thomas Harte
1c6a0ad3f7 Clean up repetition. 2023-01-26 19:51:56 -05:00
Thomas Harte
fbfa26ad5e Minor steps towards implementing Line. 2023-01-26 12:55:08 -05:00
Thomas Harte
b12fd00145 Generate an appropriate instance for line drawing. 2023-01-26 12:09:06 -05:00
Thomas Harte
0c8815d6a0 Retain command-engine context. 2023-01-26 11:59:27 -05:00
Thomas Harte
700470915a Add pixel serialisation for Yamaha graphics mode 5. 2023-01-24 23:07:29 -05:00
Thomas Harte
63bd0f918d Be overt about buffer target and vertical position. 2023-01-24 12:46:09 -05:00
Thomas Harte
7293f9dc10 Remove extraneous brackets, add comment to self. 2023-01-23 22:25:56 -05:00
Thomas Harte
8567c934b1 Ensure Yamaha refresh program is used. 2023-01-22 22:11:01 -05:00
Thomas Harte
91047e5b3a Start attempting to use table-based Yamaha fetch. 2023-01-22 22:00:28 -05:00
Thomas Harte
a5765abbad Route into the Yamaha fetcher. 
Albeit that it doesn't yet fetch.
 2023-01-21 22:47:16 -05:00
Thomas Harte
696ec12516 Add address rotation for applicable modes. 2023-01-21 22:33:26 -05:00
Thomas Harte
c9734df65c Implement extended colour, sprite and RAM pointers. 2023-01-21 20:45:23 -05:00
Thomas Harte
13e490e7d7 Log selected screen mode. 2023-01-21 14:48:55 -05:00
Thomas Harte
cefcc1d443 Expand Yamaha graphics mode recognition. 2023-01-21 14:35:26 -05:00
Thomas Harte
d1f929e6f7 Just do a multiply and divide. Easy. 2023-01-21 14:19:52 -05:00
Thomas Harte
e289e6e757 Catch and map Yamaha palette entries. 
It's one less thing in the uncaptured log.
 2023-01-21 14:12:46 -05:00
Thomas Harte
a726c9d97a Enable indirect register writes. 2023-01-20 23:14:57 -05:00
Thomas Harte
c77e7c268f 1 = disable, 0 = enable. 2023-01-20 23:08:41 -05:00
Thomas Harte
9c57bfd58d Attempt to log dropped indirect writes. 2023-01-20 23:07:14 -05:00
Thomas Harte
4efda108c6 Transcribe the Yamaha 9938 register meanings. 2023-01-20 23:00:33 -05:00
Thomas Harte
191cf4829b Attempt real blank reporting. 2023-01-20 22:29:49 -05:00
Thomas Harte
9b7a925816 Give clearer names to the two pointers. 2023-01-20 20:29:15 -05:00
Thomas Harte
392b0acb58 Pull everything out of master_system_ struct. 
Now that it's inherently collected in the relevant `Storage`.
 2023-01-19 15:09:16 -05:00
Thomas Harte
4b7606894e Move Master System state, and start simplifying. 2023-01-19 14:09:31 -05:00
Thomas Harte
1fb94d15ab No need for this-> ugliness in Base methods. 2023-01-19 12:32:42 -05:00
Thomas Harte
348c42bdea Start trying to bluff my way through extended status. 2023-01-18 22:23:19 -05:00
Thomas Harte
e450e53c4e Temporarily copy and paste my way to further logging. 2023-01-18 14:59:30 -05:00
Thomas Harte
355ee7fbc7 Adjust factoring of read and write per expanded V9938 scope. 2023-01-18 12:36:57 -05:00
Thomas Harte
fd14829992 Avoid hand-writing all the various conversions. 2023-01-09 22:34:56 -05:00
Thomas Harte
ef67205ce8 Set pixel count per mode. 2023-01-08 21:31:00 -05:00
Thomas Harte
794adf470b Break assumption that cycles = pixels; fix pixel clocking. 2023-01-08 21:25:22 -05:00
Thomas Harte
8cc20844a9 Clock convert for draw_ calls. 2023-01-08 17:31:08 -05:00
Thomas Harte
b522d65c50 Fix border lengths. 2023-01-08 17:04:19 -05:00
Thomas Harte
cb19c2ffb0 Honour internal-clocked timing constants. 2023-01-08 14:10:06 -05:00
Thomas Harte
5f6ddf8557 Avoid expressing the same thing at different clock rates. 2023-01-08 13:58:12 -05:00
Thomas Harte
72e0bfecc1 Edge towards clock-independent line composition. 2023-01-07 14:57:32 -05:00
Thomas Harte
cdf547ac82 Decline to provide synthetic text mode timing on the Mega Drive. 2023-01-07 14:37:06 -05:00
Thomas Harte
dd5b4b484a Avoid double responsibility for state. 2023-01-07 14:34:33 -05:00
Thomas Harte
56831e02fc Expand fixed timing constants. 2023-01-07 13:10:51 -05:00
Thomas Harte
5d2d3944ef Make VRAM access delay a timing property. 2023-01-07 12:48:43 -05:00
Thomas Harte
f9e21df701 Avoid further hard-coded 342s. 2023-01-07 09:13:34 -05:00
Thomas Harte
bb436204f6 Merge branch 'VDPs' of github.com:TomHarte/CLK into VDPs 2023-01-07 09:10:50 -05:00
Thomas Harte
de45536b5c Elucidate a magic constant, add an extra constexpr. 2023-01-07 09:10:41 -05:00