Thomas Harte
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34640cec93
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Started trying to move some logic out of the inner loop.
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2016-01-21 21:28:09 -05:00 |
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Thomas Harte
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48ddd3c497
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Set about documenting the CRT; while doing so decided to add an optional clock divider for input; having done so decided to try to exploit it with the Electron.
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2016-01-21 21:17:47 -05:00 |
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Thomas Harte
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baef1ccd57
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Made the constructor protected, to emphasise that this class isn't for instantiation. Also added extra comments aplenty.
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2016-01-21 08:39:34 -05:00 |
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Thomas Harte
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9fa35dd559
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Killed some whitespace lines.
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2016-01-20 21:58:34 -05:00 |
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Thomas Harte
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de7218cdf0
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Added a lot of commenting to the CPU6502 definition, simplifying its construction. Added missing nullability modifier to CSElectron. Fixed bad-habit Objective-C style naming on the Electron's Interrupt enum.
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2016-01-20 21:55:38 -05:00 |
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Thomas Harte
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4c16d34063
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Moved set_tape so that the inline definition of get_next_tape_pulse is visible to it. Also eliminated some dead typedefs.
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2016-01-20 08:27:25 -05:00 |
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Thomas Harte
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f727582911
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Started making first moves towards stripping CSCathodeRayView of its responsibilities. If that can be merely an OpenGL view that presents things, things will be a lot more portable.
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2016-01-20 08:21:33 -05:00 |
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Thomas Harte
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280a2292ff
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Shushed.
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2016-01-19 23:33:15 -05:00 |
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Thomas Harte
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9036cf3b7c
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Thus did the first UEF load.
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2016-01-19 23:03:27 -05:00 |
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Thomas Harte
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e65cd4cf06
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Some data is marginally reaching the CPU from the tape.
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2016-01-19 22:05:34 -05:00 |
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Thomas Harte
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832797182f
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Update TapeUEF.cpp
Corrected chunk for which _tone_length is used, definition of a carrier tone chunk.
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2016-01-19 18:59:10 -05:00 |
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Thomas Harte
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956b90e203
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Attempted further to improve latency; added view adjustment for non-4:3 output aspect ratios. The 4:3 is currently hardcoded, so further work will be required.
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2016-01-18 23:55:52 -05:00 |
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Thomas Harte
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90eef1df74
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Tightened to provide lower latency audio, hopefully.
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2016-01-18 20:01:06 -06:00 |
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Thomas Harte
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03f683d588
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Gave the audio queue something a lot like a spin lock on waiting to pipe out audio.
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2016-01-18 19:57:18 -06:00 |
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Thomas Harte
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127684c590
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With silence and high tone implemented, this may well hit a large proportion of existing files.
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2016-01-18 19:45:14 -06:00 |
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Thomas Harte
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7d6214e078
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This likely gets chunks 0100 and 0102 correct.
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2016-01-18 19:37:36 -06:00 |
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Thomas Harte
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5a39e42413
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Wired up enough such that some basic attempt at parsing a UEF occurs.`
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2016-01-18 17:06:09 -06:00 |
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Thomas Harte
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2779f0e569
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Statred working on support for at least the most fundamental file format.
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2016-01-18 15:46:41 -06:00 |
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Thomas Harte
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b70fdc2de8
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Switched to being explicitly careful about not wrapping around and stomping on data not yet output.
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2016-01-18 13:56:20 -06:00 |
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Thomas Harte
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ddcc34740b
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Added lots of debugging output while I attempt to locate the source of audio scratchiness, also simplified manner of dealing with wraparound within the AudioQueue wrapper.
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2016-01-18 13:50:19 -06:00 |
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Thomas Harte
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b58e59e2bb
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Fixed: now outputting the requested output rate, rather than massively overproducing at the input rate.
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2016-01-14 23:12:40 -05:00 |
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Thomas Harte
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e63b6d22ae
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As shown by the commented-out code, the aliasing-adaptation seems to be working. So something is wrong somewhere else.
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2016-01-14 21:59:37 -05:00 |
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Thomas Harte
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383b2be4c6
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Fixed one off-by-one error.
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2016-01-14 21:33:27 -05:00 |
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Thomas Harte
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8bd04a6be4
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Switched model for filter subclasses. Implemented test square[-ish] wave to check for obvious stream errors. None is clear.
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2016-01-14 21:27:02 -05:00 |
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Thomas Harte
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781249acf7
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Fixed crash.
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2016-01-14 20:35:36 -05:00 |
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Thomas Harte
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38ffcaa262
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Here, at last, is _some_ audio output, at least.
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2016-01-14 20:33:22 -05:00 |
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Thomas Harte
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afde8dac49
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Closed the loop such that audio manages to bubble up into Objective-C.
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2016-01-13 22:38:59 -05:00 |
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Thomas Harte
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439d452e23
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Resolved some errors.
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2016-01-13 22:11:33 -05:00 |
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Thomas Harte
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49e89a4bcb
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I'm not yet completely convinced by my approach to time basing, but it'll probably do? If so then this more or less gets me ready for a point-sampled filtering.
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2016-01-13 22:02:39 -05:00 |
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Thomas Harte
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d9a7ef9e46
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Edging towards audio output; the speaker is given appropriate input and output rates, and then updated with current divider and enabled/disabled status.
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2016-01-13 21:03:43 -05:00 |
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Thomas Harte
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d28abdc037
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Made an attempt at correct timing, adding support for additional paged ROMs, added file association for .rom.
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2016-01-12 22:34:26 -05:00 |
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Thomas Harte
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84ba4e2900
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Tidied a little, started working towards supporting speaker output.
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2016-01-12 22:19:56 -05:00 |
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Thomas Harte
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3437781abd
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Started sketching out an interface for sound generation. Which made me realise that the CRT in CRTDelegate was redundant, since C++ has namespaces.
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2016-01-12 16:54:09 -05:00 |
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Thomas Harte
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6112f4ef6b
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Withdrew soft filtering for now; until the sampling frequency is passed on it's not sufficiently rigorous.
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2016-01-12 16:42:16 -05:00 |
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Thomas Harte
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75d6ec354b
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Added some very basic filtering in RGB mode.
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2016-01-12 16:27:09 -05:00 |
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Thomas Harte
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49a36ec9ac
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Added F12 as break.
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2016-01-11 22:35:52 -05:00 |
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Thomas Harte
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cba09b5490
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Switched display update and RAM write order.
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2016-01-11 22:29:16 -05:00 |
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Thomas Harte
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650077feac
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Pulled a few things out as constants, zoomed in a little. Still in a 4:3 window though.
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2016-01-11 22:18:34 -05:00 |
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Thomas Harte
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72019d0ea3
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Made an attempt to get video output correct.
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2016-01-11 22:08:30 -05:00 |
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Thomas Harte
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e93dbdb463
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Implemented keyboard input.
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2016-01-11 19:48:31 -05:00 |
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Thomas Harte
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ce916ebd6a
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Fixed runaway frame generator.
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2016-01-10 23:32:57 -05:00 |
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Thomas Harte
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93f7df04a0
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Ensured correctly timed sampling of the interrupt line.
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2016-01-10 22:55:56 -05:00 |
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Thomas Harte
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ccf20299a3
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Made an attempt at getting some interrupts all up inside this thing.
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2016-01-10 19:06:46 -05:00 |
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Thomas Harte
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cc5ba8243e
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Fixed: turned out the power-on bit was being cleared.
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2016-01-10 17:17:39 -05:00 |
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Thomas Harte
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d95414b2eb
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I'm not really sure what's going wrong with paging yet but this fixes the 0xc000 byte error.
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2016-01-10 12:30:24 -05:00 |
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Thomas Harte
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e07981c147
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Fixed screen start address.
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2016-01-09 22:52:08 -05:00 |
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Thomas Harte
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1308332a71
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Hard-coded to 40 columns of black and white, here's some text, at least.
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2016-01-09 22:39:46 -05:00 |
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Thomas Harte
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037602765a
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This now correctly (I think) decodes information posted to the CRT. But doesn't yet post it correctly. I'm very close now, I hope.
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2016-01-09 22:19:00 -05:00 |
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Thomas Harte
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07a041d788
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Fixed vertical retrace sync.
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2016-01-09 21:54:31 -05:00 |
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Thomas Harte
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3d6f20b7b9
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Output, at last! Though sync is clearly way off.
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2016-01-09 21:53:33 -05:00 |
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