Thomas Harte
|
3f609e17b3
|
Factored out the table-lookup approach to being a typer, and adjusted so as definitely to limit myself to positive offset table lookups.
|
2017-07-21 21:18:51 -04:00 |
|
Thomas Harte
|
52d9ddf9e5
|
Gave the binary tape player a more logical assignment of wave level to output level. Which miraculously appears to have been the issue with the ZX80/81 tape loading — the inconsistency of silences seems to have been the issue.
|
2017-06-21 22:13:24 -04:00 |
|
Thomas Harte
|
2562306802
|
Merge branch 'master' into Z80
|
2017-05-16 21:05:00 -04:00 |
|
Thomas Harte
|
a5075d9eb5
|
Formalised the reasoning behind the colour phase fix-up and made it an opt-in per-caller value. Only the Oric currently needs to opt in.
|
2017-05-16 20:31:39 -04:00 |
|
Thomas Harte
|
eb8a2de5d6
|
Settled definitively on flush as more communicative than synchronise (and slightly more locale neutral); culled some more duplication from the Z80.
|
2017-05-15 07:38:59 -04:00 |
|
Thomas Harte
|
0808e9b6fb
|
Pulled the 6502 into a CPU namespace, making it an instance of something that has micro-opcodes and schedules them, and factoring out the formulation of a register pair.
|
2017-05-14 22:08:15 -04:00 |
|
Thomas Harte
|
e01f3f06c8
|
Completed curly bracket movement.
|
2017-03-26 14:34:47 -04:00 |
|
Thomas Harte
|
90151e2094
|
Fixed to ensure a known initial control register value, which has taken effect.
|
2016-12-28 18:49:32 -05:00 |
|
Thomas Harte
|
a568172758
|
Made steps towards proper CRC generation. Am currently comparing against Oric disk images, as — amongst other things — they include precomputed CRCs.
|
2016-12-28 18:29:37 -05:00 |
|
Thomas Harte
|
e62be03673
|
Removed endianness assumption.
|
2016-12-10 19:10:33 -05:00 |
|
Thomas Harte
|
a5683dfb21
|
Removed now untrue comment.
|
2016-12-10 15:19:48 -05:00 |
|
Thomas Harte
|
0e71802b92
|
Reduced Oric video to single nibble constants. Removed attempt at asynchronous flush as no longer required.
|
2016-12-10 14:17:46 -05:00 |
|
Thomas Harte
|
580f347727
|
Fixed Oric SCART mode by having it change what it's giving to the CRT based on which shader it knows will be active.
|
2016-12-10 13:55:56 -05:00 |
|
Thomas Harte
|
a549fd1ecc
|
Introduced the ability simply to piggy-back off the CRT's natural phase for the colour burst, thereby eliminating a couple of redundant independent attempts in the Oric and Electron.
|
2016-12-10 13:42:34 -05:00 |
|
Thomas Harte
|
6cdd41e5a9
|
Added direct use of the colour ROM, uploading 16 bits per pixel to contain the entire ROM composite wave.
|
2016-12-09 22:17:10 -05:00 |
|
Thomas Harte
|
3b5962b171
|
This is an initial attempt at using the actual Oric colour ROM values for composite video generation.
|
2016-12-09 20:01:27 -05:00 |
|
Thomas Harte
|
c304db0f5a
|
Deintegrated the busy flag and the interrupt request line, as the latter is reset by status reads. Which also means I can start reporting the WD INTRQ line status directly from the Microdisc. That appears to be correct, rather than honouring the Microdisc IRQ select there.
|
2016-12-06 21:16:29 -05:00 |
|
Thomas Harte
|
2003b514aa
|
Switched the typer to postfix underscores.
|
2016-12-03 10:55:50 -05:00 |
|
Thomas Harte
|
81ee834530
|
As well as a bunch of logging, reinstated rotation position preservation across tracks.
|
2016-12-02 18:36:47 -05:00 |
|
Thomas Harte
|
93c573bfa9
|
Implemented missing status bits (other than the index hole), and a head loading delay for the Microdisc.
|
2016-12-01 21:13:16 -05:00 |
|
Thomas Harte
|
442986ee2c
|
Introduced a head loading path for 1793 machines.
|
2016-12-01 20:12:22 -05:00 |
|
Thomas Harte
|
82899f2f47
|
Ensured flag setting is atomic, removed duplication of interrupt request versus busy, found better names for the personality testers, unified delegate protocol.
|
2016-12-01 07:41:52 -05:00 |
|
Thomas Harte
|
9b6c5e814a
|
Now that it can be more explicit, this should admit that it's '93-based, not '73.
|
2016-11-28 16:22:35 -05:00 |
|
Thomas Harte
|
2f459690d4
|
It would appear the 1770 and 1773 actually differ in relation to the (non-sensical) ability not to spin-up for a Type 2, and whether a side compare can occur. So the WD1770 class now requires a personality to be specified. Which it singly fails to honour.
|
2016-11-26 23:29:30 +08:00 |
|
Thomas Harte
|
e9d6566e9c
|
Of course, changing the IRQ enable may immediately change the IRQ line. Signal if so.
|
2016-11-26 09:35:44 +08:00 |
|
Thomas Harte
|
73d30b9c00
|
Corrected typo.
|
2016-11-25 21:30:45 +08:00 |
|
Thomas Harte
|
12956901d6
|
Filled in some register mirrors.
|
2016-11-25 21:28:11 +08:00 |
|
Thomas Harte
|
54246c8f1a
|
Interrupt enabling works the other way around I think, and both registers with only one bit defined should probably return '1' in all other places?
|
2016-11-25 21:24:59 +08:00 |
|
Thomas Harte
|
8be81f6ebd
|
Supplied disks are given to the Microdisc.
|
2016-11-25 20:53:38 +08:00 |
|
Thomas Harte
|
4af678d2ed
|
Gave the Microdisc a clock signal, added just enough of force interrupt to avoid a spurious belief that a type 3 command has started.
|
2016-11-25 20:51:39 +08:00 |
|
Thomas Harte
|
5c019ad1c0
|
Okay, so it looks like both ROM paging flags are the opposite of what I previously had.
|
2016-11-25 20:42:40 +08:00 |
|
Thomas Harte
|
5be45c6c50
|
Ensured proper default behaviour.
|
2016-11-25 20:30:27 +08:00 |
|
Thomas Harte
|
d33f3b9224
|
This is the broad strokes effort at enabling Microdisc emulation.
|
2016-11-25 20:15:48 +08:00 |
|
Thomas Harte
|
7c2d9f3752
|
This seems to be right, per http://wiki.defence-force.org/doku.php?id=oric:hardware:floppy_disk_controller_wd1793
|
2016-11-22 22:35:43 +08:00 |
|
Thomas Harte
|
5ebc1c63ff
|
Switched video to postfix underscores, for consistency.
|
2016-11-22 22:28:45 +08:00 |
|
Thomas Harte
|
707763f80b
|
Added Microdisc storage to the Oric class, switching all instance storage to postfix underscore while I'm here.
|
2016-11-22 22:22:00 +08:00 |
|
Thomas Harte
|
0c3644f350
|
Made a second parse at logic. We'll see.
|
2016-11-22 22:12:32 +08:00 |
|
Thomas Harte
|
03843bf934
|
Unified delegates. Let's keep it easy for the caller.
|
2016-11-22 22:11:11 +08:00 |
|
Thomas Harte
|
13a608a8c2
|
Added what may be correct paging logic.
|
2016-11-22 22:09:52 +08:00 |
|
Thomas Harte
|
363db695e8
|
Started implementation of the Microdisc selection logic.
|
2016-11-22 08:12:53 +08:00 |
|
Thomas Harte
|
ea33a28695
|
Any Oric-format disks that are inserted now make it all the way to the Oric, along with a request to emulate the Microdisc. It has received a copy of the ROM. The ball is entirely in its court now.
|
2016-11-21 20:59:25 +08:00 |
|
Thomas Harte
|
8b40ae03ca
|
Extended analysis to spot IRQ and NMI vector changes, for titles that simply adjust those then exit. Ensured Oric emulator can type and load quickly on an Oric 1 just as well as on an Atmos.
|
2016-11-15 11:05:53 +08:00 |
|
Thomas Harte
|
e2cdfae8a7
|
The emulated Oric now has access to both versions of the BASIC ROM and picks between them based on the static analyser's recommendation.
|
2016-11-15 10:39:16 +08:00 |
|
Thomas Harte
|
9c550c594a
|
Moved audio work back into its own thread, but this time it queues up an all happens only upon a flush. Hopefully to resolve synchronisation cost concerns.
|
2016-11-09 21:17:50 -05:00 |
|
Thomas Harte
|
64827931bf
|
Switched the Oric implementation simply to rely upon the Storage-level tape parser. So now there's only one, authoritative one of those.
|
2016-11-07 21:57:58 -05:00 |
|
Thomas Harte
|
45b169f341
|
Made a few mapping fixes, clarified where the default reset code lives, ensured the Oric and Vic clear their keys when the typer ends.
|
2016-11-05 15:28:03 -04:00 |
|
Thomas Harte
|
338904fffe
|
Made similar cleanings of the Electron and Vic.
|
2016-11-05 15:07:57 -04:00 |
|
Thomas Harte
|
9fb9d92437
|
Made the typer much more able to help out, and thereby tidied and separated the Oric's typer.
|
2016-11-05 14:47:09 -04:00 |
|
Thomas Harte
|
626e719fab
|
Added sanity checks on loading quickly.
|
2016-11-03 22:50:49 -04:00 |
|
Thomas Harte
|
a7e4c0c3b5
|
Switched to a ROM trap for typing.
|
2016-11-03 22:21:05 -04:00 |
|