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Code Issues Projects Releases Wiki Activity
7,746 Commits 8 Branches 121 Tags 496 MiB
c8ab18f2b6
Commit Graph

111 Commits

Author SHA1 Message Date
Thomas Harte
c8ab18f2b6 Add overt fallthrough. 2021-05-03 20:38:50 -04:00
Thomas Harte
b6554c8255 Adds joystick support. 2021-04-28 20:19:01 -04:00
Thomas Harte
708c24cc57 This field is counted in half-cycles. 2021-04-26 21:20:32 -04:00
Thomas Harte
b7a62e0121 Adds SZX support. 
Tweaking exposed Spectrum state object as relevant.
 2021-04-26 20:47:28 -04:00
Thomas Harte
3348167c46 Ensures AY registers are conveyed. 2021-04-26 17:39:11 -04:00
Thomas Harte
700c505974 Ensures the ZX Spectrum properly reports its display type. 2021-04-25 21:16:22 -04:00
Thomas Harte
d403036d86 Reduce bounce at Spectrum startup. 2021-04-25 20:56:57 -04:00
Thomas Harte
5e08d7db39 Carries through paging state; avoids file rereads. 2021-04-25 20:46:49 -04:00
Thomas Harte
205518ba75 Switch to more efficient copy. 2021-04-25 16:51:07 -04:00
Thomas Harte
2510064218 Completes state object. 
Subject to not yet dealing with last_fetches_ and last_contended_access_ correctly. Thought required.
 2021-04-25 14:20:40 -04:00
Thomas Harte
0ef2806970 Adds just enough to ensure that border state gets through. 2021-04-25 14:16:35 -04:00
Thomas Harte
fd271d920b Adds capture and forwarding of border colour. 2021-04-25 14:00:12 -04:00
Thomas Harte
2bbf8bc9fa Ensures 16/48kb snapshots are properly copied into place. 2021-04-25 13:27:11 -04:00
Thomas Harte
a5098a60ec Attempts to get in-SNA software to start. 2021-04-25 13:18:26 -04:00
Thomas Harte
0ebd900e40 Baby steps: apply Z80 state. 
As far as it currently is. Since SNA is leaving the PC at the default of 0x0000, this currently has no visible effect.
 2021-04-25 13:03:24 -04:00
Thomas Harte
cc78bfb229 Forwards most of the Z80 state. 2021-04-25 13:00:43 -04:00
Thomas Harte
37dcf61130 Add timing tests, fix +3 discrepancy. 2021-04-23 22:29:57 -04:00
Thomas Harte
9731fdd33b Moves horizontal sync on the 48kb. 2021-04-21 19:46:44 -04:00
Thomas Harte
d0c789ff9a Locks declarative form of contention closer to regular expressions. 2021-04-21 19:37:36 -04:00
Thomas Harte
9baa861742 Simplifies timing calculation expression. 2021-04-21 19:18:07 -04:00
Thomas Harte
9293bcbc88 Exclude the ROM from contention on 48kb and 128kb models. 2021-04-21 18:49:18 -04:00
Thomas Harte
7bac18bd65 Address bus load time is not + 1/2. 2021-04-18 18:41:24 -04:00
Thomas Harte
704737144a Corrects all interrupt timing for sign and off-by-one errors. 2021-04-18 18:40:44 -04:00
Thomas Harte
e87e851401 Add a redundant but idiomatic initial value. 2021-04-18 11:56:22 -04:00
Thomas Harte
80d4846a27 Respond with 0xff during an interrupt acknowledge. 2021-04-18 11:56:00 -04:00
Thomas Harte
93422f4b1c Brings timings into line with WoS specs. 2021-04-16 22:40:51 -04:00
Thomas Harte
7fdb1d848b Corrects Spectrum 128kb partial decoding. 2021-04-16 21:54:52 -04:00
Thomas Harte
d7954a4cb1 Tweaks timing a little. 2021-04-15 21:51:49 -04:00
Thomas Harte
ef636da866 Attempts 48/128kb floating bus behaviour. 2021-04-15 21:19:21 -04:00
Thomas Harte
fa18b06dbf Correct get_floating_value to be consistent in out-of-bounds behaviour. 2021-04-15 21:13:36 -04:00
Thomas Harte
349b9ce502 Don't post contended accesses other than on the +2a/+3. 
Those machines have an actual latch for this stuff, the others don't.
 2021-04-15 21:13:06 -04:00
Thomas Harte
71cf63bd35 Corrects internal cycle contention. 2021-04-15 19:17:11 -04:00
Thomas Harte
d1bb3aada4 Attempts to complete the in-machine application of contention. 2021-04-15 18:57:34 -04:00
Thomas Harte
b4214c6e08 Blocks off the AY from inputs in 48kb mode. 2021-04-15 18:04:16 -04:00
Thomas Harte
f5c7746493 Extends fast loading support to the just-introduced models. 2021-04-15 17:31:42 -04:00
Thomas Harte
f10ec80153 Gets started on different video timings. 2021-04-14 22:23:27 -04:00
Thomas Harte
0af405aa46 Starts working in the 48kb and 128kb Spectrums. 2021-04-14 21:37:10 -04:00
Thomas Harte
60e8273de2 Tweaks video timing, again. 2021-04-06 21:04:54 -04:00
Thomas Harte
dd28246f9f Better indicate interrupt timing. 2021-04-06 12:06:13 -04:00
Thomas Harte
fd88071c0a Remove further detritus. 2021-04-05 17:21:26 -04:00
Thomas Harte
90c3d6a1e8 Attempts a later interception of tape loading. 2021-04-04 22:39:30 -04:00
Thomas Harte
f26bf4b9e4 Splitting here isn't achieving anything. 2021-04-04 19:52:38 -04:00
Thomas Harte
1da51bee6c 14368 and six seem to be the proper numbers, per my comprehension of Patrick Rak. 2021-04-04 19:52:19 -04:00
Thomas Harte
5a66956221 Merge branch 'master' into SpeccyTiming 2021-04-04 19:12:37 -04:00
Thomas Harte
d77ddaf4fa Switches the Electron to JustInTimeActor video. 
Also reorders template parameters; I think that specifying a different time base is likely to be more common than using a divider.
 2021-04-04 17:33:49 -04:00
Thomas Harte
afb4e6d37d Merge branch 'master' into JITSleeper 2021-04-04 15:37:19 -04:00
Thomas Harte
14663bd06b I think 3 is what I'm aiming for here. 
But this probably isn't correct for IO cycles.
 2021-04-02 07:36:57 -04:00
Thomas Harte
044ac949ba Rearrange fields. 2021-04-01 12:44:00 -04:00
Thomas Harte
87317f5673 Improve documentation, pin down read/write times. 2021-04-01 12:38:58 -04:00
Thomas Harte
687c05365e Flushes before set_last_contended_area_access. 2021-03-31 22:52:41 -04:00