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Author SHA1 Message Date
Thomas Harte
64517a02b7 Adds code to deal with sector-free tracks. 2020-01-09 21:50:32 -05:00
Thomas Harte
b4befd57a9 Advances to being able to cope with STXs with no special features whatsoever. 
Well, other than perhaps a broken data CRC. Fuzzy bits, timing differences and the stuff between sectors are all currently absent.
 2020-01-09 21:03:01 -05:00
Thomas Harte
2c742a051e
Merge pull request #723 from TomHarte/LSLTiming 
Introduces a timing test for LSL. Which already passes.
 2020-01-08 22:43:50 -05:00
Thomas Harte
6595f8f527 Introduces a timing test for LSL. Which already passes. 2020-01-08 22:35:28 -05:00
Thomas Harte
985b36da73 Starts towards STX support. 2020-01-07 23:21:32 -05:00
Thomas Harte
cdb31b1c2b
Merge pull request #721 from TomHarte/AYZero 
Ensures programmatic AY volume level 0 is completely off.
 2020-01-05 22:50:42 -05:00
Thomas Harte
6a44936a7c Ensures programmatic volume level 0 is completely off. 2020-01-05 22:44:52 -05:00
Thomas Harte
45afb13a54
Merge pull request #720 from TomHarte/Jasmin 
Adds emulation of the Oric's Jasmin disk interface.
 2020-01-05 22:13:11 -05:00
Thomas Harte
3ced31043a Makes Jasmin autoboot optional, adds a Jasmin reset key, adds the Jasmin to File -> New... . 
Also finally implements KeyNMI.
 2020-01-05 21:57:33 -05:00
Thomas Harte
7361e7ec34 Fixed: the issue was failing to propagate motor control. 
Also it seems to be incorrect to have the Jasmin paged at initial boot.
 2020-01-05 21:35:20 -05:00
Thomas Harte
533729638c It seems like Jasmin paged in at boot, and button = page back in and reset works? 
At least, that gets me a 'boot failed' error. Which is something.
 2020-01-05 20:34:15 -05:00
Thomas Harte
9f30be1c13 Attempts to implement most of a Jasmin disk interface. 
With one obvious omission: there's no way to start it? The real interface had a dedicated button, but I don't yet know what that button did. Research needed.
 2020-01-05 20:05:55 -05:00
Thomas Harte
09289f383d Makes an effort to detect Jasmin disks, and flags the target if found. 
It'll try the Jasmin only if the Microdisc check fails; this is because the latter is preferable — it automatically boots, and is much better tested in Clock Signal terms.
 2020-01-05 18:44:58 -05:00
Thomas Harte
20b25ce866
Merge pull request #719 from TomHarte/CleanUps 
Standardises on `read` and `write` for bus accesses.
 2020-01-05 13:59:02 -05:00
Thomas Harte
c1bae49a92 Standardises on read and write for bus accesses. 
Logic being: name these things for the bus action they model, not the effect they have.
 2020-01-05 13:40:02 -05:00
Thomas Harte
b3f806201b
Merge pull request #718 from TomHarte/BusErrorStack 
Adds a test and fixes for the bus error stack frame.
 2020-01-05 00:08:53 -05:00
Thomas Harte
9f2f547932 Adds and satisfies test on the function code word. 
Thanks to ijor's "68000 Address and Bus Error Stack Frame" re: contents.
 2020-01-04 23:58:07 -05:00
Thomas Harte
f0d5bbecf2 Introduces a test of stack contents after an address error. 
Fixes: stacked PC, address of fault.
 2020-01-04 23:22:07 -05:00
Thomas Harte
3d7ef43293
Merge pull request #717 from TomHarte/JSRA7 
Fixes A7-relative JSRs.
 2020-01-04 22:29:04 -05:00
Thomas Harte
4578b65487
Merge pull request #716 from TomHarte/PartialDecoding 
Clarifies IO decoding, adds YM mirrors.
 2020-01-04 22:23:22 -05:00
Thomas Harte
a28c52c250 Fixes A7-relative JSRs. 
I completely withdraw my earlier statement re: the test cases.
 2020-01-04 22:22:33 -05:00
Thomas Harte
e4349f5e05 Slightly clarifies logic. 2020-01-04 21:32:34 -05:00
Thomas Harte
7b2777ac08 Sorts cases into order; adds copious audio mirrors. 2020-01-04 21:06:21 -05:00
Thomas Harte
0fbcbfc61b Switches to more idiomatic address listing. 2020-01-04 20:35:47 -05:00
Thomas Harte
3ab4fb8c79 Enables an assumption of partial address decoding at the ACIA and PSG. 2020-01-04 17:27:55 -05:00
Thomas Harte
42a9585321
Merge pull request #715 from TomHarte/TestsRedux 
After rerunning all tests, adds some notes on questionable results.
 2020-01-04 16:41:01 -05:00
Thomas Harte
937cba8978 After rerunning all tests, adds some notes on questionable results. 
Also renames a file. But no code changes are currently suggested, at least until I can learn more about DIVU/DIVS.
 2020-01-04 16:31:45 -05:00
Thomas Harte
627d3c28ea
Merge pull request #714 from TomHarte/STJoystick 
Adds Joystick key code mode, ensures events aren't posted in interrogation mode.
 2020-01-04 10:01:57 -05:00
Thomas Harte
19ddfae6d6 Adds Joystick key code mode, ensures events aren't posted in interrogation mode. 
This should fix Turrican due to the latter change; I'm not aware of software that uses the former.
 2020-01-04 09:45:59 -05:00
Thomas Harte
56ebd08af0
Merge pull request #713 from TomHarte/MULUS 
Adds DIV and MUL tests, correcting some DIV flags.
 2020-01-04 09:22:03 -05:00
Thomas Harte
7de1181213 Make a new guess at post-overflow DIV flags, based on tests. 
Specifically: for DIVU, stick with the current guess of a fixed set. For DIVS, leave N and Z alone.
 2020-01-03 23:44:49 -05:00
Thomas Harte
c7a5b054db There's no TODO here; overflow is always 0 for a 16x16 multiply. 
... and the original 68000 doesn't support 32x32 multiplies.
 2020-01-03 22:44:19 -05:00
Thomas Harte
ca12ba297b Renames all files that test multiple opcodes; introduces DIV and MUL tests. 2020-01-03 22:43:24 -05:00
Thomas Harte
7abf527084
Merge pull request #712 from TomHarte/MercsTweaks 
Corrects vsync placement and BPP-change pipeline flushing.
 2020-01-02 23:50:30 -05:00
Thomas Harte
c0b5bfe726 Ensure no possible return without value. 2020-01-02 23:43:53 -05:00
Thomas Harte
414b0cc234 Reintroduces sync write delay. 2020-01-02 23:36:11 -05:00
Thomas Harte
134e828336 Updates note to self. 2020-01-02 23:33:35 -05:00
Thomas Harte
455e831b87 Corrects bug whereby changing pixel mode mid-line will produce an improper amount of data. 2020-01-02 23:18:21 -05:00
Thomas Harte
617e0bada9 Adds some minor extra testing. Highly duplicative, to be honest. 2020-01-02 23:14:05 -05:00
Thomas Harte
7dea99b1cc Update comment, for sense. 2020-01-02 23:13:12 -05:00
Thomas Harte
42ccf48966 Judging by Pompey Pirates Menu 88, vsync should occur a line earlier, ending during line 0. 2020-01-02 20:16:28 -05:00
Thomas Harte
2f8078db22 Switches to should_log as a global when I'm hacking about. 2020-01-02 20:15:48 -05:00
Thomas Harte
ea45ae78d1
Merge pull request #711 from TomHarte/MoreTests 
Introduces further comparative tests, prompting a new CHK fix.
 2020-01-01 20:12:07 -05:00
Thomas Harte
cb7d6c185c Further expands test coverage. 2020-01-01 20:00:37 -05:00
Thomas Harte
5be30b1f7b Introduces further comparative tests, prompting a new CHK fix. 
Specifically: how to set N when both is_under and is_over are true, and to eliminate a failure fully to prefetch in the longer addressing modes.
 2020-01-01 19:11:36 -05:00
Thomas Harte
0bf1a87f4c
Merge pull request #710 from TomHarte/STOP 
Ensure that an interrupt from a STOP doesn't return to the STOP.
 2020-01-01 15:00:11 -05:00
Thomas Harte
b184426f2b Ensure that an interrupt from a STOP doesn't return to the STOP. 2020-01-01 14:51:47 -05:00
Thomas Harte
2456fb120d
Merge pull request #709 from TomHarte/MoreMouse 
Adds Atari ST mouse support for absolute positioning and inverted scales.
 2020-01-01 13:56:25 -05:00
Thomas Harte
23ed9ad2de Corrects application of negative relative scale. 2020-01-01 13:22:21 -05:00
Thomas Harte
017681a97c Now honours permitted mouse range. 2020-01-01 12:48:38 -05:00