Thomas Harte
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72a645ec1e
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Fix trans; take further crack at MEMC permissions.
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2024-03-25 15:50:59 -04:00 |
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Thomas Harte
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1154ffd072
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Add a 'drive in use' indicator LED.
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2024-03-25 15:03:54 -04:00 |
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Thomas Harte
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8ba9708942
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Hopefully resolve the mystery of the latch writes.
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2024-03-25 14:54:30 -04:00 |
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Thomas Harte
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521fca6089
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Expose full bus to IOC dependents; add notes.
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2024-03-25 11:07:44 -04:00 |
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Thomas Harte
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ae684edbe1
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Formally decode bank/offset/type.
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2024-03-25 10:16:36 -04:00 |
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Thomas Harte
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fa0a9aa611
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Eliminate 'has_moved_rom_'.
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2024-03-24 22:36:11 -04:00 |
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Thomas Harte
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5da9e0486a
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Simplify control flow.
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2024-03-24 22:30:26 -04:00 |
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Thomas Harte
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6980fd760c
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Add further heavily-manual debugging aids.
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2024-03-24 22:18:30 -04:00 |
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Thomas Harte
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c1602cc8fe
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The keyboard and interrupts are currently trusted.
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2024-03-23 21:49:52 -04:00 |
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Thomas Harte
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189dd176de
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Reguess state machine, fixing startup display.
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2024-03-23 21:38:35 -04:00 |
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Thomas Harte
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3cf262d1f7
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Improve terminology, add more documentation.
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2024-03-23 21:12:01 -04:00 |
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Thomas Harte
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ccfc389274
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Quieten where now confident.
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2024-03-23 21:03:06 -04:00 |
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Thomas Harte
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0e07f802ac
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Use BACK state; accept other ACKs at any time.
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2024-03-23 21:02:35 -04:00 |
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Thomas Harte
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c720f3910a
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Avoid implicit sign cast.
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2024-03-23 20:13:25 -04:00 |
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Thomas Harte
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4215edd11b
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Reduce noise.
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2024-03-23 20:12:56 -04:00 |
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Thomas Harte
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09a61cf1a7
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Don't expect an ACK after identifying.
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2024-03-23 20:12:38 -04:00 |
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Thomas Harte
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5967ad0865
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Sketch out whole protocol, albeit faulty.
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2024-03-23 17:08:03 -04:00 |
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Thomas Harte
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eb34c38332
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Add very faulty key input.
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2024-03-23 15:58:48 -04:00 |
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Thomas Harte
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5ccb18225a
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Provide key states to the keyboard.
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2024-03-23 15:43:04 -04:00 |
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Thomas Harte
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58bbce1a15
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Avoid display errors upon back-pressure.
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2024-03-22 22:01:12 -04:00 |
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Thomas Harte
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9ea3e547ee
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Fix IRQ/FIQ return addresses.
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2024-03-22 21:42:34 -04:00 |
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Thomas Harte
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fb5fdc9f10
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Actually apply video divider.
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2024-03-22 10:24:24 -04:00 |
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Thomas Harte
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de7b7818f4
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Add 4bpp output.
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2024-03-22 10:18:25 -04:00 |
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Thomas Harte
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c4e6b18294
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Manage pixel buffers.
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2024-03-22 10:10:13 -04:00 |
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Thomas Harte
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ae6cf69449
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Move responsibility for clock division; reinstate vsync interrupt.
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2024-03-22 10:01:34 -04:00 |
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Thomas Harte
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4a2dcff028
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Endeavour to map colours properly.
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2024-03-21 21:53:50 -04:00 |
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Thomas Harte
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aa6acec8fa
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Don't hoard cycles per line value.
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2024-03-21 21:47:27 -04:00 |
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Thomas Harte
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4ac4da908c
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Reduce TODOs, do _something_ with border colour.
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2024-03-21 21:40:11 -04:00 |
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Thomas Harte
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66e62857c4
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Give ostensibly clean timing to the CRT.
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2024-03-21 21:29:53 -04:00 |
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Thomas Harte
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bbc0d8b050
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Count time in phase correctly.
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2024-03-21 21:15:25 -04:00 |
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Thomas Harte
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0f8bc416d1
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Make first, faulty step into displaying a field.
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2024-03-21 21:10:55 -04:00 |
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Thomas Harte
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2ec235170e
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Finish the thought on magic constants.
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2024-03-21 20:45:17 -04:00 |
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Thomas Harte
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2de1a2dd0d
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Install and properly clock a CRT.
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2024-03-21 20:41:24 -04:00 |
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Thomas Harte
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1f49c3b113
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Give sound and video somewhere to read from.
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2024-03-21 20:22:20 -04:00 |
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Thomas Harte
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5c645fb3c2
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Switch to a fixed output clock; retain addresses.
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2024-03-21 11:51:29 -04:00 |
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Thomas Harte
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40b5227f0b
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Deliver all addresses to the video outputter.
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2024-03-21 11:24:47 -04:00 |
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Thomas Harte
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847dba8f07
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Divide input pixel rate.
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2024-03-21 11:03:28 -04:00 |
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Thomas Harte
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417c6c4629
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Announce changes.
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2024-03-21 10:51:52 -04:00 |
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Thomas Harte
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2d6a4d490e
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Add dummy retrace interrupt.
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2024-03-21 10:02:56 -04:00 |
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Thomas Harte
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a6ec870872
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Capture more audio detail.
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2024-03-21 09:47:53 -04:00 |
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Thomas Harte
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389541be6d
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Pipe further sound parameters; obey divider.
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2024-03-20 14:43:47 -04:00 |
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Thomas Harte
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208f3e24de
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Audio ticks are now included.
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2024-03-20 14:30:21 -04:00 |
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Thomas Harte
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1341816791
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Break apart, switching to delegates for interrupts.
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2024-03-20 14:26:56 -04:00 |
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Thomas Harte
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08673ff021
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Switch to macro blocks of execution; flail around audio.
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2024-03-20 11:42:37 -04:00 |
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Thomas Harte
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3a2d9c6082
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Give user access to ROM; clean up a touch.
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2024-03-19 20:26:17 -04:00 |
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Thomas Harte
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43a3959b8f
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Don't data abort on missing low ROM.
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2024-03-19 15:06:01 -04:00 |
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Thomas Harte
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85a738acff
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Get rigorous on exception addresses.
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2024-03-19 15:03:31 -04:00 |
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Thomas Harte
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2ad6bb099b
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Begin foray into disassembly.
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2024-03-19 11:34:10 -04:00 |
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Thomas Harte
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9d858bc61b
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IRQ and FIQ should also store PC+4.
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2024-03-18 14:08:08 -04:00 |
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Thomas Harte
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612c9ce49a
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Transfer logging responsibility.
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2024-03-18 11:09:29 -04:00 |
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