Thomas Harte
50b5122969
For an MSX 2, the extension ROM is obligatory.
2023-01-13 14:18:39 -05:00
Thomas Harte
9f450b3ccb
Expose the extension ROM to an MSX 2.
2023-01-13 14:16:12 -05:00
Thomas Harte
4190d25698
Ensure RAM is properly sized and available.
2023-01-13 14:07:54 -05:00
Thomas Harte
befc81743a
Fix base RAM mapping.
2023-01-13 09:31:56 -05:00
Thomas Harte
23ff3fc366
Ensure all routes go somewhere.
2023-01-13 08:05:12 -05:00
Thomas Harte
78ce439b9b
Add missing header; correct type.
2023-01-12 23:08:01 -05:00
Thomas Harte
ce440d52b3
Standardise name.
2023-01-12 23:02:24 -05:00
Thomas Harte
2e7e5ea12b
Fleshes out most of a cleaner memory slot layout.
2023-01-12 23:01:11 -05:00
Thomas Harte
0d8c014099
Secondary slot selections are per primary slot.
2023-01-11 13:15:00 -05:00
Thomas Harte
fee82d3baa
Fix typo.
2023-01-11 13:14:42 -05:00
Thomas Harte
76ad465030
Also seek the extension ROM for the MSX 2.
2023-01-11 12:56:09 -05:00
Thomas Harte
483ee8a74f
Add a catch for the secondary paging register.
2023-01-10 22:24:40 -05:00
Thomas Harte
520ae7f2b2
Pick generic BIOS based on machine type.
2023-01-10 22:15:01 -05:00
Thomas Harte
ae5b81c0ab
Add MSX 2 to the ROM catalogue.
2023-01-10 18:17:17 -05:00
Thomas Harte
6bd261b222
Add storage for secondary paging.
2023-01-10 18:07:31 -05:00
Thomas Harte
53bb17c848
Use model as a compile-time MSX configurator.
2023-01-10 14:55:57 -05:00
Thomas Harte
6e0f260478
Add a model field.
2023-01-10 14:52:09 -05:00
Thomas Harte
19e333d117
Merge branch 'master' into SecondarySlots
2023-01-10 14:40:49 -05:00
Thomas Harte
3352feb21b
Merge pull request #1113 from TomHarte/VDPs
...
TMS9918 &c: Eliminate hard-coded assumption of 16kb.
2023-01-10 14:40:38 -05:00
Thomas Harte
73549eb38c
Document quite a bit more, to refresh my memory.
2023-01-10 14:40:03 -05:00
Thomas Harte
dbff7592f5
Merge pull request #1112 from TomHarte/VDPs
...
Clean up TMS9918-related code.
2023-01-10 13:40:47 -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
9085ba4081
Update SMS VDP tests.
2023-01-09 22:58:12 -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
4875148617
Fill in Mega Drive numbers.
2023-01-05 14:22:51 -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