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Code Issues Projects Releases Wiki Activity
11,116 Commits 10 Branches 121 Tags 498 MiB
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Commit Graph

180 Commits

Author SHA1 Message Date
Thomas Harte
693d46f8ea Mask by index, not colour. 2021-11-18 05:36:38 -05:00
Thomas Harte
3496ebd1d7 Constrain sprite fetches to Chip RAM. 2021-11-17 17:49:42 -05:00
Thomas Harte
be763cf7fe Expose joystick to the world. 2021-11-17 15:33:46 -05:00
Thomas Harte
c3b4bee210 Adds a joystick class. 2021-11-17 14:26:51 -05:00
Thomas Harte
6df0227ab1 Hacks in a basic effort at dual playfields. 2021-11-16 18:26:27 -05:00
Thomas Harte
47f36f08fb Switches to a synchronous audio state machine; renames advance -> advance_dma. 
I can worry about how to just-in-time things once I better understand the hardware in general.
 2021-11-13 15:53:41 -05:00
Thomas Harte
f906bab1a5 Provides feedback on interrupt flags, starts on state machine. 2021-11-13 11:05:39 -05:00
Thomas Harte
fffc03c4e4 Propagates time to the audio subsystem. 2021-11-12 15:30:52 -05:00
Thomas Harte
0a94184d6b Provides a greater wealth of audio data. 2021-11-11 09:24:15 -05:00
Thomas Harte
7be3578497 Adds a target for audio writes. 2021-11-09 07:11:23 -05:00
Thomas Harte
31e22e4cfb Provides full serial input. 2021-11-07 05:19:16 -08:00
Thomas Harte
c0c2b5e3a9 Post key actions to the nominated serial line. 
Albeit that I'm still thinking through whether I want the option of including a clock on Serial::Line. It'd be natural in one sense — there's already one built in — but might weaken Serial::Line's claim to be a one-stop shop for both enqueued and real-time connections without a reasonable bit of extra work.
 2021-11-06 12:03:09 -07:00
Thomas Harte
c9bf2dda16 Attempt implementation of disk sync. 2021-11-02 18:18:59 -07:00
Thomas Harte
3ceb378b9b Relocate disk logic into a separate compilation unit. 2021-11-02 17:35:23 -07:00
Thomas Harte
1cf1c90511 Adds support for interlaced output. 2021-11-02 14:34:03 -07:00
Thomas Harte
d989825216 Add bonus notes on VPOSR. 2021-11-02 03:47:39 -07:00
Thomas Harte
3976420b88 Retains a little more of output controls. 2021-11-01 17:15:36 -07:00
Thomas Harte
2f1ce5fe43 Switch to using the swizzled palette for playfield output. 2021-11-01 14:44:30 -07:00
Thomas Harte
42145a5b8a Delay bitplane installation until end of slot. 2021-11-01 14:18:58 -07:00
Thomas Harte
4e66017205 Enable sprite reuse and toggle to inactive when visible region is over. 2021-10-31 16:52:48 -07:00
Thomas Harte
4c1ab6ff25 Rethinks bitplane stops. 2021-10-31 09:01:38 -07:00
Thomas Harte
02c88e6826 VHPOSR's fields are the other way around. 2021-10-30 12:04:46 -07:00
Thomas Harte
d25804f4a2 Throws in official register names. 2021-10-29 14:05:11 -07:00
Thomas Harte
edb75e69cb Implement bitplane modulos. 2021-10-29 11:29:22 -07:00
Thomas Harte
b952d73e83 Disallow programmatic setting of blitter status. 2021-10-29 06:19:57 -07:00
Thomas Harte
da1a69be27 Caps mouse speed. 
Also takes another guess at CIA interrupt bits. To no avail.
 2021-10-27 18:38:02 -07:00
Thomas Harte
139d35c6f9 Switches to basic use of sprite shifters. 2021-10-25 20:58:48 -07:00
Thomas Harte
cb24457b4a Starts on a two-at-a-time sprite shifter. 2021-10-25 16:30:30 -07:00
Thomas Harte
9f3efb7f05 Limits graphical output to [all but one bit] of the display window. 2021-10-25 14:12:23 -07:00
Thomas Harte
e6001e0f22 Shifts bitplanes irrespective of output window. 2021-10-25 13:59:39 -07:00
Thomas Harte
c6535bf035 Switches bitplane shifter to returning four high-res pixels at a time. 2021-10-25 13:34:36 -07:00
Thomas Harte
7118a515e0 Reduce logging in trustworthy areas. 2021-10-23 20:36:41 -07:00
Thomas Harte
952451c9b8 Add mouse input. 2021-10-23 20:17:13 -07:00
Thomas Harte
610327a04e Fix sprite H start bit order. 2021-10-22 23:20:20 -07:00
Thomas Harte
2121e32409 Fix sprite bit ordering. 2021-10-22 21:10:01 -07:00
Thomas Harte
7ec21edc2f Attempts to hack in some form of sprite display. 2021-10-22 19:51:10 -07:00
Thomas Harte
003162f710 Limit to specific purpose. 2021-10-22 16:16:19 -07:00
Thomas Harte
040ac93042 Takes a shot at the vertical stuff of sprite DMA. 2021-10-22 14:32:59 -07:00
Thomas Harte
b489ba3d0d Adds sprite DMA windows. 2021-10-22 13:07:20 -07:00
Thomas Harte
c5e8b547af Captures the attach flag and observes activation rule. 2021-10-22 11:21:58 -07:00
Thomas Harte
e67de90ad0 Starts to bring sprites inside DMADevice orthodoxy. 2021-10-21 21:57:46 -07:00
Thomas Harte
c3c84c88a1 Switch to ahead-of-time planar to chunky conversion. 2021-10-21 20:48:57 -07:00
Thomas Harte
0dc9c4cee1 Undo hard-coding of fetch window. 2021-10-19 15:18:39 -07:00
Thomas Harte
b312a61a81 Add two dummy reads. 2021-10-16 13:30:45 -07:00
Thomas Harte
e27a10bde4 Simplify control flow. 2021-10-14 16:47:18 -07:00
Thomas Harte
253a199f27 Fire sync-match interrupt upon any match. 2021-10-14 16:36:17 -07:00
Thomas Harte
b12c640807 Makes drives non-copyable. 
To avoid error in the future.
 2021-10-14 12:37:55 -07:00
Thomas Harte
9be23ecc34 Add end-of-Blit interrupt. 
Along with a slightly easier path for posting interrupts, in C++ compilation unit terms.
 2021-10-13 15:09:19 -07:00
Thomas Harte
eec068914e Slightly improve logging. 2021-10-11 18:05:57 -07:00
Thomas Harte
39b8285ba5 Trust the HRM on step bit, but catch rising edge. 2021-10-11 07:42:42 -07:00
Thomas Harte
7733fef3bd DSKLEN has to be written twice. 2021-10-11 06:16:01 -07:00
Thomas Harte
6acddfdb98 Add the sync match interrupt. 
Albeit that it doesn't yet unblock disk DMA.
 2021-10-11 03:37:56 -07:00
Thomas Harte
99492c2ec2 Further tweak logging. 2021-10-10 18:19:50 -07:00
Thomas Harte
846b505d27 Reduce logging; disk data probably isn't the immediate obstacle. 2021-10-10 13:04:10 -07:00
Thomas Harte
8d43b4a98d Expands Disk DMA access window. 2021-10-10 11:47:02 -07:00
Thomas Harte
9336ffe216 Take a stab at index-hole sync. 2021-10-09 08:01:02 -07:00
Thomas Harte
eb157f15f3 Adds index hole interrupt. 2021-10-09 04:08:59 -07:00
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
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
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
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
0b9ebafc0f Flip bit deserialisation order. 2021-09-28 22:12:13 -04:00
Thomas Harte
ffcd2ea10c Attempts more properly to implement line mode. 2021-09-28 21:39:09 -04:00
Thomas Harte
c4ab2bbeed Hard-code fetch window width. For now. 2021-09-23 22:06:13 -04:00
Thomas Harte
f1d514470d Add note to future self. 2021-09-23 20:29:39 -04:00
Thomas Harte
60bad22a91 Correct fetch window. 2021-09-23 18:13:24 -04:00
Thomas Harte
e15f1103a0 Takes a shot at low resolution shifting. 2021-09-20 19:00:52 -04:00
Thomas Harte
a4263b5a8c Ties bitplane collection to line position. 
Outgoing bug: incrementing the video relative offset too often, due to cycles that are discovered to be CPU-targetted.
 2021-09-19 21:55:45 -04:00
Thomas Harte
245b7baa61 Moves the Copper into its own file. 2021-09-16 21:17:23 -04:00
Thomas Harte
0eeaaa150a Correct Copper start address. 2021-09-16 21:01:37 -04:00
Thomas Harte
692d87f446 Attempts to restrict blitter slot allocation. 2021-09-16 19:56:28 -04:00
Thomas Harte
6572efe2a7 Clarifies word addressing. 2021-09-16 08:24:52 -04:00
Thomas Harte
8aac2bd029 Stubs in serial port status. 2021-09-14 21:53:07 -04:00
Thomas Harte
add11db369 Factors out DMADevice, which is now a parent of Blitter. 2021-09-14 20:51:32 -04:00
Thomas Harte
fd70f7ad43 Attempts to make pixel content observeable. 2021-09-08 20:57:26 -04:00
Thomas Harte
6e034c9b7f At least manages to place a pixel region on screen. 
Albeit that I've suddenly realised that I've failed properly to think about high-res versus low-res.
 2021-08-11 20:31:37 -04:00
Thomas Harte
52e375a985 Move towards playfield decoding. 2021-08-11 18:47:35 -04:00
Thomas Harte
10a5e7313f Makes a buggy first attempt at bitplane data collection. 2021-08-10 21:28:48 -04:00
Thomas Harte
ec9cb21fae Starts towards bitplane collection. 2021-08-10 19:01:41 -04:00
Thomas Harte
fdd02ad6a6 Neaten, slightly. 2021-08-10 09:20:34 -04:00
Thomas Harte
76e9fcc94a Obey blitter DMA-enable mask. 2021-08-10 09:19:15 -04:00
Thomas Harte
e412927415 Logs a bit more from the Blitter, gives it access to slots. 2021-08-10 07:17:01 -04:00
Thomas Harte
dda154c7c6 Adds nonsense disk reads, which seems to lead to bitplane and blitter requests. 
Progress, at last!
 2021-08-09 20:31:14 -04:00