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Author SHA1 Message Date
Thomas Harte
d6e2a3f425 Make a first attempt to spool into RAM. 2021-10-08 18:11:47 -07:00
Thomas Harte
b47ca13ed3 Push disk data onwards. 2021-10-08 17:18:11 -07:00
Thomas Harte
67546c4d6e Per the HRM, the index hole is connected to CIA B, potentially to raise an interrupt. 2021-10-08 17:12:37 -07:00
Thomas Harte
f72deb0a5c Correct RDY position. 2021-10-08 04:32:13 -07:00
Thomas Harte
616ccbb878 Correct ID bit placement, multiplex with motor state. 
The latter per my reading of http://www.primrosebank.net/computers/amiga/upgrades/amiga_upgrades_storage_fdis.htm
 2021-10-08 04:05:57 -07:00
Thomas Harte
5899af0038 Starts accumulating disk data. 2021-10-07 05:11:32 -07:00
Thomas Harte
ed303310bb Spell out slightly more; this makes debugging a touch easier. 2021-10-06 13:40:48 -07:00
Thomas Harte
33ff4f3b5c Eliminate drive copies. 2021-10-06 13:40:28 -07:00
Thomas Harte
20bad38d42 Add drive activity lights. 2021-10-06 04:54:40 -07:00
Thomas Harte
92a07398cd I think CHNG works the other way around. 2021-10-06 04:47:52 -07:00
Thomas Harte
ce8f782577 Corrects meaning of IBM-style RDY. 2021-10-06 04:42:44 -07:00
Thomas Harte
e961d0b4a3 Switch RDY type. 2021-10-06 04:41:09 -07:00
Thomas Harte
2253ff656a Adds route for inserting disks. 2021-10-05 16:12:30 -07:00
Thomas Harte
18631399ad Attempts to clock the disk controller. 2021-10-05 15:38:56 -07:00
Thomas Harte
ad4afcdcd5 Switch stepping direction. 
Empirically, based on the actions of Kickstart, and assuming my confusion is because the relevant signal is active low.
 2021-10-05 15:23:48 -07:00
Thomas Harte
2cf5bcc5db Clarify logic somewhat. 2021-10-05 15:20:05 -07:00
Thomas Harte
1180ad7662 Disables a couple of now-trustworthy LOGs. 2021-10-05 06:51:47 -07:00
Thomas Harte
5463cd1ae3 Attempts to support stepping and head selection. 2021-10-05 06:36:17 -07:00
Thomas Harte
647ec770ce Implements motor latching, drive ID shift registers. 2021-10-05 05:12:01 -07:00
Thomas Harte
e47bec2e65 Switch CIA B ports over. 2021-10-05 03:38:11 -07:00
Thomas Harte
6566936be9 Be overt about the intended interface. 2021-10-04 16:45:33 -07:00
Thomas Harte
674941abdf Starts to add a disk controller. 2021-10-04 16:45:05 -07:00
Thomas Harte
b3f0ca39ed Adds some unused drives. 2021-10-04 08:12:13 -07:00
Thomas Harte
5ccb512883 Moves the CIAs into the Chipset class. 
This reflects the routing of interrupt signals for now, but also prepares for the addition of disk drives.
 2021-10-04 06:44:54 -07:00
Thomas Harte
da286d5ae8 Switch spaces to tabs. 2021-10-04 05:27:25 -07:00
Thomas Harte
73e45511dc Add missing #include. 2021-10-04 05:26:38 -07:00
Thomas Harte
a282a51673 Remove last of the direct printf'ing. 2021-09-30 02:42:59 -04:00
Thomas Harte
b7b13e20d1 Single column blits should use both masks. 2021-09-29 22:49:35 -04:00
Thomas Harte
ad90c6b6ce Now that this is getting close, don't stop at the first error. 2021-09-29 22:19:34 -04:00
Thomas Harte
402fa41bc0 Corrects initial error value. 2021-09-29 22:19:17 -04:00
Thomas Harte
0b9ebafc0f Flip bit deserialisation order. 2021-09-28 22:12:13 -04:00
Thomas Harte
140e24ef15 Grab further copy flags. 2021-09-28 22:11:58 -04:00
Thomas Harte
0c998d60cb Correct test logic for line draws that repeatedly write to the same address. 2021-09-28 21:45:55 -04:00
Thomas Harte
ffcd2ea10c Attempts more properly to implement line mode. 2021-09-28 21:39:09 -04:00
Thomas Harte
cb460de94d Makes bad first attempt at a Bresenham inner loop. 2021-09-27 22:06:00 -04:00
Thomas Harte
f6624bf776 Edges mildly closer to line output. 2021-09-26 19:18:12 -04:00
Thomas Harte
b4b6c4d86f Attempts to support left and right masks. 2021-09-26 18:42:08 -04:00
Thomas Harte
759689ff31 Fix line mode flag, add busy status. 2021-09-26 18:16:00 -04:00
Thomas Harte
1dfc36f311 Flip loop, add modulo mappings. 2021-09-26 18:15:32 -04:00
Thomas Harte
1c03ff1d37 Fix bltdptl to bltbptl misstatement; remove pre-DMA writes. 2021-09-26 18:14:50 -04:00
Thomas Harte
19dd2f92bd Implements test case. Failing at present, naturally. 2021-09-25 21:52:41 -04:00
Thomas Harte
acfaa016a0 Adds a capture of traffic leading up to the Workbench boot logo. 
Around which to construct a test case.
 2021-09-25 18:10:07 -04:00
Thomas Harte
9012a7f5e1 Merge branch 'master' into Amiga 2021-09-23 23:00:03 -04:00
Thomas Harte
e957b471b2
Merge pull request #989 from TomHarte/Xcode13 
Resolves Clang 13 implicit conversion warnings.
 2021-09-23 22:59:42 -04:00
Thomas Harte
e5a5faa417 Resolves Clang 13 implicit conversion warnings. 2021-09-23 22:53:41 -04:00
Thomas Harte
c4ab2bbeed Hard-code fetch window width. For now. 2021-09-23 22:06:13 -04:00
Thomas Harte
42ef459e20 Resolve resting values. 2021-09-23 22:05:59 -04:00
Thomas Harte
cad1a9e0f1 Correct bit test. 2021-09-23 20:42:31 -04:00
Thomas Harte
f1d514470d Add note to future self. 2021-09-23 20:29:39 -04:00
Thomas Harte
9a7a54f22f Take alternative guess as to meaning of 'use' bits. 2021-09-23 18:42:12 -04:00