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9,397 Commits 8 Branches 121 Tags 496 MiB
7cf9e08948
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2767 Commits

Author SHA1 Message Date
Thomas Harte
7cf9e08948 Map shadowing by logical address, not physical. 
Disclaimer: although this better matches the tests, I've yet to verify.
 2022-06-29 06:10:15 -04:00
Thomas Harte
60d3519993 Clarify, attempt to implement as internally documented. 2022-06-28 22:32:31 -04:00
Thomas Harte
6abc317986 Avoid permitting writes in the Cx00 region after uninhibiting the language card. 2022-06-28 16:35:47 -04:00
Thomas Harte
94fcc90886 Use auxiliary switches to control language card area when card is inhibited. 2022-06-28 12:46:31 -04:00
Thomas Harte
7aeaa4a485 Tweak paging semantics, to allow simple multiple dependencies. 2022-06-27 21:38:45 -04:00
Thomas Harte
ef40a81be2 Remove temporary hack. 2022-06-27 08:00:29 -04:00
Thomas Harte
21842052cf Alternative zero page should affect bank 0's language card area when the card is disabled. 2022-06-27 07:56:45 -04:00
Thomas Harte
403eda7024 Add missing flush. 2022-06-05 09:08:36 -04:00
Thomas Harte
a61f7e38b6 Very minor: avoid division and modulus when unnecessary. 2022-06-03 15:39:29 -04:00
Thomas Harte
3d059cb751 Make use of Microcycle helpers where relevant. 
None of these existed when the Macintosh was first added to this emulator.
 2022-06-03 15:33:31 -04:00
Thomas Harte
1365fca161 Avoid phoney write modifies. 2022-05-27 21:42:55 -04:00
Thomas Harte
a611a745e7 Switch the Macintosh to 68000 mk2. 2022-05-24 12:35:36 -04:00
Thomas Harte
b0518040b5 Plants the seek of a 68000 mark 2. 2022-05-16 11:44:16 -04:00
Thomas Harte
866b6c6129 Eliminate off_t. 2022-04-27 19:16:37 -04:00
Thomas Harte
efff91ea3d Undo bad guess at initial switch state. 2022-04-17 17:03:05 -04:00
Thomas Harte
290dd3993b CPC: ensure 64/128k RAM is properly selected. 2022-03-26 08:54:07 -04:00
Thomas Harte
bfd28a04ba Remove noise. 2022-03-18 10:41:20 -04:00
Thomas Harte
359ec257c0 Add a further state, seemingly to fix high-res mode. 2022-03-18 08:27:46 -04:00
Thomas Harte
88767e402c Switch DDFSTART/STOP state machine. 2022-03-17 20:03:36 -04:00
Thomas Harte
e698cbf092 Silence debugging information. 2022-03-13 12:48:05 -04:00
Thomas Harte
f2ce646d8d Undo 8-cycle-if-met WAIT. 2022-03-13 12:47:48 -04:00
Thomas Harte
acba357df6 Adds empty callouts for all serial port registers. 2021-12-23 15:22:20 -05:00
Thomas Harte
a17c192a9e Allow chip RAM size selection, while I'm here. 2021-12-22 15:30:19 -05:00
Thomas Harte
1916a9b99c Remove stdout noise. 2021-12-22 15:22:28 -05:00
Thomas Harte
9796b308dc Add basic implementation of fast RAM. 2021-12-22 15:17:11 -05:00
Thomas Harte
d0e3024bec Switch to nibble-oriented lookup tables for fill mode. 2021-12-19 17:16:46 -05:00
Thomas Harte
d2ad149e56 Fill mode always runs right to left. 2021-12-19 16:43:18 -05:00
Thomas Harte
348840a2aa It's probably a net detriment to use a template in this scenario. 2021-12-19 16:31:44 -05:00
Thomas Harte
3a719633eb Consolidate interface; correct LOGs. 2021-12-18 19:39:41 -05:00
Thomas Harte
bd69948d37 The Copper can now skip Chipset::perform. 2021-12-18 17:53:11 -05:00
Thomas Harte
54aa211f56 Avoid infinite loops for completely undefined addresses. 2021-12-18 17:48:45 -05:00
Thomas Harte
f118891970 Breaks Chipset::perform into read and write. 
This allows each to call the other when a read occurs of a write-only address, and vice versa.
 2021-12-18 17:43:53 -05:00
Thomas Harte
dbae3fc9a5 Propagate to bitplanes immediately; fix odd/even confusion. 2021-12-18 16:37:40 -05:00
Thomas Harte
c834960bfb Withdraw separate x-and-y guess, make MOVE lose a cycle if a sleep/wake occurs. 2021-12-12 19:18:18 -05:00
Thomas Harte
600abc55b5 Compare x and y separately, wake immediately from a sleep, log more. 2021-12-12 17:26:33 -05:00
Thomas Harte
f3ec7d54bb Clarifies wait-for-CPU-slot semantics. 
Big bonus: this guarantees `advance_dma`s will be called at most once per output cycle, even if they return `false`.
 2021-12-09 19:17:44 -05:00
Thomas Harte
2b0415d552 Attempt to avoid off-by-one buffer reads, add modulation. 2021-12-06 19:28:40 -05:00
Thomas Harte
066e4421e8 Attempt volcntrld. 2021-12-06 06:35:08 -05:00
Thomas Harte
f02a241249 Inserts an additional reload. 2021-12-05 17:47:12 -05:00
Thomas Harte
a5fe1e4259 Largely debugs audio state machine. 
I think I'm still missing an address reload somewhere though, and attachment doesn't actually push.
 2021-12-05 15:27:35 -05:00
Thomas Harte
9b80563443 Exposes targets for modulation. 2021-12-05 06:38:55 -05:00
Thomas Harte
91b5da06e3 Perform reload on Disabled -> WaitingForDummyDMA. 2021-12-04 19:17:40 -05:00
Thomas Harte
7320f96ae7 Capture attachment flags. 2021-12-04 18:02:43 -05:00
Thomas Harte
fdf2b9cd7b Add local data pointers. 2021-12-04 17:58:41 -05:00
Thomas Harte
bfc70a1b60 Ensure interrupt request bits always propagate. 2021-12-04 16:50:42 -05:00
Thomas Harte
aff7a93106 Move DMAFlags to Flags.hpp. 2021-12-04 08:26:28 -05:00
Thomas Harte
3b027c4593 Switch and -> or for testing transitions from ::PlayingLow. 2021-12-04 08:24:41 -05:00
Thomas Harte
42d3bdd373 Adds a begin_state template. 2021-12-04 07:20:17 -05:00
Thomas Harte
57789092c1 Keep audio fetches in bounds. 2021-12-03 07:16:21 -05:00
Thomas Harte
6bc5268cbd Reload period counter on low -> high transition. 2021-12-02 18:43:02 -05:00