Thomas Harte
|
08275c6241
|
Fixed mixer IO bit usage.
|
2016-10-19 22:22:15 -04:00 |
|
Thomas Harte
|
59162228ef
|
Reduced mask for clarity.
|
2016-10-19 22:14:05 -04:00 |
|
Thomas Harte
|
319d7c2b12
|
Fixed premature wrapping of the envelope, played about with whether that should be subject to a predivision by 256. It feels unlikely?
|
2016-10-19 22:12:51 -04:00 |
|
Thomas Harte
|
6073906c39
|
Commented and fixed mistake that would equate any noise divider > 32768 with 0.
|
2016-10-19 21:51:35 -04:00 |
|
Thomas Harte
|
101f168ea4
|
Made an attempt to tidy up.
|
2016-10-19 21:43:18 -04:00 |
|
Thomas Harte
|
5e2b0aa901
|
Quick project clean up.
|
2016-10-19 21:32:12 -04:00 |
|
Thomas Harte
|
5c69728625
|
Introduced a memory fuzzer, and ensured the Oric uses it.
|
2016-10-19 21:31:50 -04:00 |
|
Thomas Harte
|
734b575d30
|
Ensured no attempt to write to pixel storage if none was available.
|
2016-10-19 21:17:27 -04:00 |
|
Thomas Harte
|
4258401384
|
Implemented flush, added a call to it from the filter speaker's destructor, to ensure no race conditions on accessing the various bits of instance state there and below.
|
2016-10-19 21:15:04 -04:00 |
|
Thomas Harte
|
ada37abe23
|
Made an attempt to implement noise and envelopes. Not quite right yet.
|
2016-10-19 21:13:22 -04:00 |
|
Thomas Harte
|
5a808d789a
|
Added an upper threshold that must be crossed before a lower threshold warning is communicated.
|
2016-10-18 22:21:34 -04:00 |
|
Thomas Harte
|
ca28e3c64e
|
Ensured the AY is pumped linearly, not exponentially.
|
2016-10-18 22:21:06 -04:00 |
|
Thomas Harte
|
bd6e6674a0
|
Fixed signed shift assumption and noise-related register test.
|
2016-10-18 22:20:12 -04:00 |
|
Thomas Harte
|
b7609d2bb4
|
Fixed a potential race condition and simplified generally.
|
2016-10-18 19:32:38 -04:00 |
|
Thomas Harte
|
9669a5ec9b
|
Switched to a more authentic interfacing to the AY.
|
2016-10-18 19:32:15 -04:00 |
|
Thomas Harte
|
f6b6ec7009
|
Cemented new meaningof the audio queue delegate callout.
|
2016-10-17 08:18:32 -04:00 |
|
Thomas Harte
|
988bbb5ab1
|
Ensured AY registers aren't rewritten just because of a synchronise event. A stall prior to figuring out proper bus logic, clearly.
|
2016-10-17 08:05:57 -04:00 |
|
Thomas Harte
|
c628b7c5c5
|
This is the real PAL frequency, I think.
|
2016-10-17 08:05:02 -04:00 |
|
Thomas Harte
|
c105f2acd9
|
Sought to reduce chattiness.
|
2016-10-17 08:04:36 -04:00 |
|
Thomas Harte
|
1a57e89ff0
|
Altered phase so that it now merely accounts for accumulated error across a frame. Can probably do better.
|
2016-10-17 08:04:15 -04:00 |
|
Thomas Harte
|
43612e1ca2
|
Made an attempt to eliminate conditionals (running before I can walk?) and started edging towards an envelope generator.
|
2016-10-17 08:03:38 -04:00 |
|
Thomas Harte
|
cc0b70828b
|
Removed attempt at multiple-file logic, at least for the time being. Starting to wonder whether I actually need anything beyond a literal streaming of bytes?
|
2016-10-16 22:15:24 -04:00 |
|
Thomas Harte
|
b274d7008c
|
Added precaution to make sure best-effort updaters aren't mid-update during document destruction.
|
2016-10-16 22:14:47 -04:00 |
|
Thomas Harte
|
61ad0f8bdc
|
Fixed inverse characters, added an extra per-frame phase change, based on empirical observation, ensured header guard won't become ambiguous.
|
2016-10-16 22:14:01 -04:00 |
|
Thomas Harte
|
fae1bb0db9
|
First successful game loaded! It turns out exactly one '$' is correct. Probably.
|
2016-10-15 21:49:41 -04:00 |
|
Thomas Harte
|
a67afb7efa
|
Switched to a tight crop on the pixel part of the display.
|
2016-10-15 21:43:46 -04:00 |
|
Thomas Harte
|
952a24f769
|
A quick hard-wiring of the OricTAP code to get the first file in a .tap correct, damn the rest, and I'm getting some on-screen feedback. Hooray!
|
2016-10-15 21:39:53 -04:00 |
|
Thomas Harte
|
a608bbebfb
|
Performed enough wiring to put the onus back onto OricTAP to do appropriate things.
|
2016-10-15 21:32:59 -04:00 |
|
Thomas Harte
|
6d7c3f6ac2
|
Factored out the now-sampling binary-level tape player from the Vic and connected it up to the Oric.
|
2016-10-15 21:21:18 -04:00 |
|
Thomas Harte
|
9730e8247f
|
Ensured propagation of synchronise messages, added enough to do plain tone. Probably. So: noise and envelopes missing. And it's all far too quiet.
|
2016-10-15 21:04:21 -04:00 |
|
Thomas Harte
|
51bdac27ae
|
Made some AY advances; it's now being polled for samples and collecting more information on what it needs to output.
|
2016-10-15 17:45:39 -04:00 |
|
Thomas Harte
|
da9c9ad51a
|
Added in the missing keys; added variable phase to the video.
|
2016-10-14 22:39:27 -04:00 |
|
Thomas Harte
|
288d10c253
|
Got some keyboard reaction.
|
2016-10-14 21:44:15 -04:00 |
|
Thomas Harte
|
3dbb602419
|
This seems to be a bit more likely.
|
2016-10-14 21:36:59 -04:00 |
|
Thomas Harte
|
138eabcff4
|
Continued in my effort to wire up a keyboard. Will need further to continue.
|
2016-10-14 21:35:15 -04:00 |
|
Thomas Harte
|
d8e4c488c2
|
Started iterating towards having an AY and a fully-working keyboard.
|
2016-10-14 21:18:03 -04:00 |
|
Thomas Harte
|
8867ad647c
|
Made an attempt at implementing the loopbacks necessary for diagnostics.
|
2016-10-13 21:47:12 -04:00 |
|
Thomas Harte
|
41e7eff6c8
|
Added a VIA. Now it's time to find out how poor my 6522 emulation is.
|
2016-10-13 20:50:55 -04:00 |
|
Thomas Harte
|
c9962f6502
|
Made an almost complete implementation of video. Just one row of the diagnostics cartridge seems to be off, showing thw wrong character set.
|
2016-10-13 19:34:29 -04:00 |
|
Thomas Harte
|
0ca383ecd1
|
Set every single key to be NMI, in order to be able to progress with the diagnostics cartridge.
|
2016-10-13 18:56:55 -04:00 |
|
Thomas Harte
|
69920a4979
|
Made some basic first attempt at parsing video attributes; ensured lowest byte of ROM is readable.
|
2016-10-13 07:59:11 -04:00 |
|
Thomas Harte
|
ae48ad1bb4
|
Meaningful text! Albeit with the initial 'O' of 'Oric' missing. I guess control codes and NMIs next?
|
2016-10-12 22:03:54 -04:00 |
|
Thomas Harte
|
120b2d9e33
|
Switched to using a diagnostic ROM for now, as it'll definitely boot without initially requiring either a 6522 or AY. Have some forms appearing which imply I'm not doing badly, at least up to not knowing where I'm supposed to get character pixels from.
|
2016-10-12 21:52:47 -04:00 |
|
Thomas Harte
|
1f857c619b
|
Fixed timing issues. Static box of frame achieved!
|
2016-10-12 21:42:36 -04:00 |
|
Thomas Harte
|
304f0999cd
|
Made a faulty but hopefully creditable attempt to demarcate an Oric frame.
|
2016-10-12 21:29:21 -04:00 |
|
Thomas Harte
|
8c8a71107e
|
Added just enough wiring to add something that will generate the video, one day.
|
2016-10-12 19:20:23 -04:00 |
|
Thomas Harte
|
e6937d8003
|
Ensured that the ROM gets installed. So next for some video action?
|
2016-10-12 18:51:02 -04:00 |
|
Thomas Harte
|
f7d2e988b6
|
Mildly enhanced unit test, while I'm curious.
|
2016-10-11 22:22:53 -04:00 |
|
Thomas Harte
|
4a062c616f
|
Added enough wiring to get Oric TAPs through to a completely unimplemented Oric emulation.
|
2016-10-11 22:20:13 -04:00 |
|
Thomas Harte
|
cbc3d28217
|
Ensured an exception is thrown if no machine to run a file is found. E.g. right now if you tried to open a ZX Spectrum .tap.
|
2016-10-11 21:03:01 -04:00 |
|