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9047932b81
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Author SHA1 Message Date
Thomas Harte
9047932b81 Corrected basic error. Arbitration now seems to succeed. 
This is seemingly followed by a pattern of signalling BUSY+SEL followed by just SEL with the various other potential device IDs in turn. To which nothing ever responds as currently implemented.
 2019-08-15 23:28:30 -04:00
Thomas Harte
f668e4a54c Makes an attempt at getting the 5380 past arbitration. 
Not entirely successful. Also gets a bit smarter with `final` on ClockingHint::Sources.
 2019-08-15 23:14:40 -04:00
Thomas Harte
ce1c96d68c Starts thinking out the mechanics of emulating a SCSI-1 bus. 2019-08-13 23:09:11 -04:00
Thomas Harte
0f67e490e8 Adjusts NCR address decoding to produce a more plausible initial interaction. 2019-08-11 22:43:25 -04:00
Thomas Harte
895c315fa5 Increases the Mac Plus too 4mb. 2019-08-11 21:41:12 -04:00
Thomas Harte
a90a74a512 Stubs in just enough of the 5380 to get a Mac Plus too boot. 2019-08-11 20:55:20 -04:00
Thomas Harte
949c1e1668 Adds an empty shell for what will be my 5380 implementation. 2019-08-10 23:53:52 -04:00
Thomas Harte
bbd4e4d3dc Enhances memory map fidelity to allow for ROM holes on the Mac Plus. 
This is how the ROM detects the difference between the Plus and the 512ke, it seems.
 2019-08-10 23:53:34 -04:00
Thomas Harte
4859d3781b
Merge pull request #643 from TomHarte/Mac512 
Simplifies just-in-time usage of the IWM, and the disk-speed accumulator
 2019-08-07 21:51:07 -04:00
Thomas Harte
bac0461f7f Switches the drive-speed accumulator to the delegate pattern. 
This allows the Macintosh to ensure that the IWM is kept up just-in-time with drive speed changes.
 2019-08-07 21:39:23 -04:00
Thomas Harte
f26a200d78 Switches to a JustInTimeActor to wrap the IWM. 
Also simplifies potential future usage of the IWM template.
 2019-08-07 21:28:02 -04:00
Thomas Harte
28ccb7b54e Merge branch 'master' of github.com:TomHarte/CLK 2019-08-04 21:34:49 -04:00
Thomas Harte
b6e4c8209b Switches to showing 'File -> Open...' at launch. 
As per the prevailing wind.
 2019-08-04 21:34:30 -04:00
Thomas Harte
16548f0765
Merge pull request #642 from TomHarte/InterruptSampling 
Moves timing of interrupt sampling into prefetch queue advancement.
 2019-08-04 21:20:22 -04:00
Thomas Harte
6a80832140 Moves timing of interrupt sampling into prefetch queue advancement. 
As per comment, that is definitely the only place it can occur; I don't know whether it always occurs there.
 2019-08-04 21:06:34 -04:00
Thomas Harte
c6cf0e914b
Merge pull request #641 from TomHarte/DIVSTiming 
Substantially improves DIVS timing.
 2019-08-04 20:46:50 -04:00
Thomas Harte
35b1a55c12 Corrects DIVS negative flag. 2019-08-04 20:36:33 -04:00
Thomas Harte
e3794c0c0e Takes a second pass at DIVS timing, seeming to correct that side of things. 2019-08-04 20:33:43 -04:00
Thomas Harte
f88dc23c71 Corrects comment. 2019-08-04 20:30:41 -04:00
Thomas Harte
0e293e4983 Relocates RAM delay test in order to scrape out a minor performance win. 2019-08-03 21:46:45 -04:00
Thomas Harte
e334abfe20 Partitions the 68000 arithmetic tests, to allow easier per-instruction execution. 2019-08-03 17:44:47 -04:00
Thomas Harte
fd2fbe0e59
Merge pull request #640 from TomHarte/InterruptSignalling 
Corrects 68000 address lines during interrupt acknowledgement.
 2019-08-03 15:42:15 -04:00
Thomas Harte
330b27d085 Merge branch 'master' into InterruptSignalling 2019-08-03 15:39:22 -04:00
Thomas Harte
478f2533b5 Corrects 68000 address bus during interrupt acknowledge. 
All unused bits should be 1, not 0.
 2019-08-03 15:38:36 -04:00
Thomas Harte
b96972a4b9
Merge pull request #639 from InvisibleUp/master 
Allow for scons to run on Python 3
 2019-08-03 08:51:45 -04:00
InvisibleUp
f2b083f4de Allow for scons to run on Python 3 2019-08-03 00:33:53 -04:00
Thomas Harte
80f6d665d9
Merge pull request #638 from TomHarte/SimplifiedBus 
Simplifies code around Mac bus decoding.
 2019-08-02 22:33:54 -04:00
Thomas Harte
a07488cf1b Introduces the Mac Plus memory map. 
Albeit with no SCSI support yet.
 2019-08-02 22:26:40 -04:00
Thomas Harte
d67c5145c0 Introduces RAM access delays. 2019-08-02 22:12:34 -04:00
Thomas Harte
5e76d593af Switches to table-based address decoding. 2019-08-02 21:30:04 -04:00
Thomas Harte
83393e8e91 Merge branch 'master' into SimplifiedBus 2019-08-02 21:05:45 -04:00
Thomas Harte
e08a64d455 Fixes erroneous instruction. 2019-08-02 21:04:53 -04:00
Thomas Harte
b93f9b3973 Distinguishes time advancement from bus response. 2019-08-02 19:48:41 -04:00
Thomas Harte
9c517d07d4
Merge pull request #637 from TomHarte/UserInfo 
Improves Macintosh user communications
 2019-08-02 17:29:44 -04:00
Thomas Harte
f45de5b87a Adds how-to-release-the-mouse instructions for Cocoa. 2019-08-02 17:07:51 -04:00
Thomas Harte
011d76175c Adds mouse release instructions for SDL. 2019-08-02 16:38:05 -04:00
Thomas Harte
96005261c7 Adds activity lights for Macintosh disk activity. 
Prompting a quick fix to drives not spinning down.
 2019-08-02 16:26:23 -04:00
Thomas Harte
c8177af45a Introduces missing implementation file. 2019-08-02 16:26:08 -04:00
Thomas Harte
97eff5b16d Formally distinguishes Macintosh keys from virtual keys. 
Also: adds mappings for keypad keys, and corrects a couple of
long-standing capitalisation errors in my virtual key set.
 2019-08-02 16:15:34 -04:00
Thomas Harte
917520fb1e
Merge pull request #636 from TomHarte/PWM 
Attempts more accurately to match Apple's IWM windowing logic.
 2019-08-02 15:15:11 -04:00
Thomas Harte
335dda3d55 Attempts more accurately to match Apple's windowing logic. 2019-08-02 12:49:45 -04:00
Thomas Harte
0c8e313fd5
Merge pull request #635 from TomHarte/Cleanup 
Improves code quality, particularly the NSDocument subclass.
 2019-08-01 14:32:49 -04:00
Thomas Harte
f64ec11668 Tidies up and simplifies panel flow. 2019-08-01 14:31:45 -04:00
Thomas Harte
9bbccd89d3 Adds an extended rationale for current implementation. 
Also strips some cruft of prior guesses.
 2019-07-31 23:19:46 -04:00
Thomas Harte
1ae3799aee
Merge pull request #634 from TomHarte/OpenCrash 
Resolves a potential crash at launch on the Mac
 2019-07-31 14:11:58 -04:00
Thomas Harte
260843e5b1 Starts poking at a pure total-based formula. 
On the assumption that any relevant DC offset will fall out in the wash. This causes one 400kb disk to boot in a Macintosh 128kb, another couple to do reasonably well. So it's better than what was here before.
 2019-07-31 12:42:23 -04:00
Thomas Harte
e3f22e5787 This should actually be PWM, I think. 
I'm just unsure of exactly the proper formula, owing to my ignorance on basic electrical engineering. Research ahoy!
 2019-07-30 22:02:41 -04:00
Thomas Harte
2aa308efdd Tweaks magic formulas. 
The computer now at least seeks outward, until this attempt at drive speed calculation fails.
 2019-07-30 16:18:36 -04:00
Thomas Harte
74c18d7861 Attempts a full wiring up of 400kb drive speed. 2019-07-30 15:08:55 -04:00
Thomas Harte
c41cccd9a6 Adds a workaround to display the ROM import banner even from File -> Open... . 2019-07-30 13:07:33 -04:00