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Commit Graph

10778 Commits

Author SHA1 Message Date
Thomas Harte
301442a0b1 Fix meaning of flag, use correctly. 2023-11-28 22:34:34 -05:00
Thomas Harte
dd4bcf68bf Load up on debugging logs. 2023-11-28 15:09:57 -05:00
Thomas Harte
b860fba0a3 Make an attempt at providing varied sense interrupt statuses. 2023-11-28 14:12:39 -05:00
Thomas Harte
c19c356c10 Add disabled longer serialisation. 2023-11-27 23:23:00 -05:00
Thomas Harte
8fec9bef11 Attempt IRQ logic. 2023-11-27 23:16:24 -05:00
Thomas Harte
bffe3ffa25 Add an 8272 results phase. 2023-11-27 23:05:37 -05:00
Thomas Harte
993366ac5a Merge branch 'master' into PCFDC 2023-11-27 22:16:30 -05:00
Thomas Harte
b07cc5c2ec
Merge pull request #1219 from TomHarte/68000TemplatedPerform
Sometimes provide 68000 bus operations at compile time.
2023-11-27 21:54:24 -05:00
Thomas Harte
36a4629ce0 Explain new semantics. 2023-11-27 21:49:57 -05:00
Thomas Harte
87eec47b79 Mildly reduce cost of 8-byte ROM overlay. 2023-11-27 15:48:30 -05:00
Thomas Harte
2a0375e9c2 Mildly adjust layout of inner loop. 2023-11-27 15:16:22 -05:00
Thomas Harte
032eeb4757 Eliminate runtime switch. 2023-11-27 14:57:41 -05:00
Thomas Harte
5c7f94d2ef Introduce the possibility of operation type as a template parameter.
It's already proven possible to provide this for instruction fetch, so I think it'll immediately be a win. But more importantly it opens a path forwards for further improvement.
2023-11-27 11:48:34 -05:00
Thomas Harte
291723e85e Insert notes to self, trying to tie down FloppyController interface. 2023-11-27 10:27:36 -05:00
Thomas Harte
d2203484cc Avoid name duplication. 2023-11-26 15:29:08 -05:00
Thomas Harte
003c494aac Factor out a large number of status-related facts. 2023-11-26 15:04:10 -05:00
Thomas Harte
a6a464c240 Add printed TODO. 2023-11-25 21:40:13 -05:00
Thomas Harte
9bd75464b5 Proceed to receiving a sense interrupt status. 2023-11-25 18:15:37 -05:00
Thomas Harte
0bb048e24b Start formalising/extracting 8272 status. 2023-11-25 18:10:49 -05:00
Thomas Harte
8c70317d31 Introduce interrupt. 2023-11-24 23:06:52 -05:00
Thomas Harte
dd135bf3fe Start experimenting with a possible end-of-reset interrupt? 2023-11-24 22:41:33 -05:00
Thomas Harte
2efb5236f7 Add an agent for floppy control. 2023-11-24 22:19:39 -05:00
Thomas Harte
af70c8847d Factor out the stuff of accumulating and dissecting commands. 2023-11-24 18:24:58 -05:00
Thomas Harte
d5c30e3175 Add enough keyboard support to be able to bypass the initial FDC BIOS failure report. 2023-11-24 13:38:06 -05:00
Thomas Harte
ed31cfd80a
Merge pull request #1216 from TomHarte/ReduceNoise
Limit extraneous printing.
2023-11-23 23:05:46 -05:00
Thomas Harte
89423f28ef Limit extraneous printing. 2023-11-23 22:47:31 -05:00
Thomas Harte
593c32f621
Merge pull request #1215 from TomHarte/PCKeyboard
Attempt to implement the XT keyboard controller.
2023-11-23 22:26:09 -05:00
Thomas Harte
019d987623 Clear buffer on read. 2023-11-23 22:16:08 -05:00
Thomas Harte
7e8020df59 Avoid a spurious initial interrupt. 2023-11-23 22:15:20 -05:00
Thomas Harte
44d602e0f6 Seriously attempt a keyboard controller. 2023-11-23 22:10:51 -05:00
Thomas Harte
0674da0325 Flip IRQ priority. 2023-11-23 15:41:24 -05:00
Thomas Harte
113fc9f757 Add further TODO. 2023-11-23 15:29:43 -05:00
Thomas Harte
2c31452629 Add TODO, as exposition. 2023-11-23 15:19:31 -05:00
Thomas Harte
505df78108 Add column duplication, switch to green. 2023-11-23 15:18:28 -05:00
Thomas Harte
d92d0e87ac Honour MDA attributes. 2023-11-23 14:51:32 -05:00
Thomas Harte
df9e9c2c4d Start accumulating notes. 2023-11-22 15:21:45 -05:00
Thomas Harte
b3c07b76ee
Merge pull request #1214 from TomHarte/MDAOutput
Add basic MDA text output.
2023-11-22 15:04:21 -05:00
Thomas Harte
e0f72f2048 Tidy up. 2023-11-22 14:18:58 -05:00
Thomas Harte
825f3184eb Explain provenance. 2023-11-22 14:18:50 -05:00
Thomas Harte
a293a3a816 Document the future. 2023-11-22 14:14:53 -05:00
Thomas Harte
b22b489380 Mask into 4kb; I don't know whether hardware scrolling is in use. 2023-11-22 14:12:57 -05:00
Thomas Harte
231de8440e Add text display. 2023-11-22 14:11:22 -05:00
Thomas Harte
8993a9c4c1 Import MDA font. 2023-11-22 14:04:26 -05:00
Thomas Harte
381537fde9 Get as far as MDA being able to fetch. 2023-11-22 13:52:28 -05:00
Thomas Harte
f249e4ada6 Maintain an actual pixel buffer. 2023-11-22 13:40:50 -05:00
Thomas Harte
12179e486f Create a solid white rectangle. 2023-11-22 13:18:39 -05:00
Thomas Harte
80b2ccd418 Attempt to wire in a CRTC. 2023-11-22 12:53:09 -05:00
Thomas Harte
2af6259963
Merge pull request #1213 from TomHarte/PITClock
Standardise on the PIT clock as the definition of time.
2023-11-21 22:51:14 -05:00
Thomas Harte
24d0caf8e7 Fix Swift conditionality. 2023-11-21 22:48:26 -05:00
Thomas Harte
1828a10885 Use less branchy inner loop. 2023-11-21 22:42:53 -05:00