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9,913 Commits 9 Branches 118 Tags 496 MiB
a5765abbad
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131 Commits

Author SHA1 Message Date
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
4d96122884 Eliminate hard-coded assumption of 16kb. 
Clearly I'll have to do something else to support 128k+, probably move the ram pointer?
 2023-01-10 12:38:19 -05:00
Thomas Harte
f1f16d1f9a Clarify and simplify half_cycles_before_internal_cycles. 2023-01-09 22:55:46 -05:00
Thomas Harte
fd14829992 Avoid hand-writing all the various conversions. 2023-01-09 22:34:56 -05:00
Thomas Harte
c0fe88a5bb Apply clock conversion to existing usages of do_external_slot. 2023-01-09 13:54:49 -05:00
Thomas Harte
4d9d684618 Add TODO on dangling hard-coded conversion. 2023-01-08 21:44:25 -05:00
Thomas Harte
a0a835cf10 Export memory size into traits. 2023-01-08 21:37:20 -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
Thomas Harte
ebc1264c2c Create a common home for timing information. 2023-01-06 22:39:46 -05:00
Thomas Harte
7a82b76911 Ensure visibility of memset. 2023-01-05 13:21:03 -05:00
Thomas Harte
27d37f71ec Generalise and better factor bit reversal and TMS drawing. 2023-01-05 13:18:10 -05:00
Thomas Harte
c4a5a9763e Minor indentation improvement. 2023-01-02 15:04:50 -05:00
Thomas Harte
a9f97ac871 Fix nothing-to-do test. 2023-01-02 15:04:08 -05:00
Thomas Harte
475440dc70 Update ClockConverter for potential alternative clocks. 2023-01-02 14:59:36 -05:00
Thomas Harte
dc3f8f5e42 These are the three fetchers to implement. 
They'll look fairly different from the TMS and SMS fetchers, I think, owing to the greater irregularity that comes with the smarter RAM accesses. I might need to play around for a while.
 2023-01-01 22:44:06 -05:00
Thomas Harte
459ef39b08 constexpr the TMS palette. 2023-01-01 22:34:07 -05:00
Thomas Harte
27812fd0e2 Separate fetchers into their own header. 2023-01-01 22:26:50 -05:00
Thomas Harte
38eb4d36de Better explain cumulative nature of @c to_internal. 2023-01-01 22:18:39 -05:00
Thomas Harte
2bd20a0cf8 Add further exposition. 2023-01-01 22:17:21 -05:00