Thomas Harte
70c4d6b9b3
Adds a one second delay between controller and drive motor off.
2018-08-03 21:13:18 -04:00
Thomas Harte
98bb5bd9f1
Ensures flux bits are observable for two cycles rather than one; it should be 1us.
2018-07-31 23:01:11 -04:00
Thomas Harte
92065813ef
Ensures only the first 8px of sprites is output in 8x8 mode.
...
Also adds a little extra documentation.
2018-07-15 22:21:29 -04:00
Thomas Harte
cd464fc7de
Corrects status logging.
2018-06-26 20:53:08 -04:00
Thomas Harte
df8c896193
Removes unused state and implements AND output readback.
2018-06-26 19:31:16 -04:00
Thomas Harte
59f8eeb05a
Ensures the AY goes high impedance when not in read mode.
2018-06-25 20:48:24 -04:00
Thomas Harte
5ab4cfee84
Factors out repeated hex-size setting.
2018-06-21 19:27:54 -04:00
Thomas Harte
a9eb0d02c6
Returns sanity to 8272 logging.
2018-06-20 23:02:32 -04:00
Thomas Harte
adca862166
Finally makes an initial pass at logging macros.
2018-06-18 22:37:19 -04:00
Thomas Harte
dde9b73a22
Creates the through-path that will be necessary for RWTS acceleration.
2018-06-09 12:51:53 -04:00
Thomas Harte
076fa55651
Corrects: flux set is no-flux incoming.
...
This restores good sleeping behaviour.
2018-06-03 08:11:17 -04:00
Thomas Harte
1a9cea050e
Minor: ensure AY registers *read* as 0 from reset, as well as being 0.
2018-06-01 19:48:42 -04:00
Thomas Harte
35e84ff1a8
Corrects NTSC quadrature phase.
2018-05-31 21:40:46 -04:00
Thomas Harte
75f9e3caeb
Resolves incorrect bracketing.
2018-05-28 17:48:35 -04:00
Thomas Harte
928aab13dc
Introduces more granular clocking announcements to the Disk II.
...
As well as making it accept the clock rate it'll actually receive, to supply to the drives, so that they spin at the proper speed.
2018-05-28 17:19:29 -04:00
Thomas Harte
db8d8d8404
Commutes Sleeper to ClockingHint::Source, making state more granular.
2018-05-27 23:17:06 -04:00
Thomas Harte
086b801c29
Mildly rearranges to avoid unnecessary call.
2018-05-22 21:50:07 -04:00
Thomas Harte
e482929da8
Enhances the Disk II's ability to sleep.
...
Also enables Disk II sleep observation in the Oric.
2018-05-19 23:15:28 -04:00
Thomas Harte
ed06533e60
Implements write support out of the Disk II.
2018-05-18 22:07:58 -04:00
Thomas Harte
7b7beb13a3
Eliminates the fiction of setting and getting registers.
...
The Disk II seems lower level than that; it will read the data bus whenever it likes, it is the programmer's responsibility to keep up with that. It also reserves the right not to load the bus regardless of whether it receives a read or write access.
2018-05-17 21:39:11 -04:00
Thomas Harte
c46007332a
Switches to returning the shift register contents on every even read.
2018-05-17 20:18:34 -04:00
Thomas Harte
908d3b0ee5
Slightly wrong as to the details, but gets the controller trying to output.
...
At an initial look, I think the shift register should end up on the data bus for all odd accesses. Need to investigate more thoroughly.
2018-05-16 22:37:22 -04:00
Thomas Harte
8a031b1137
Eliminates 'data' register as it doesn't exist; rejigs state machine command set.
2018-05-16 22:09:59 -04:00
Thomas Harte
1aba9f807e
Ensures proper upward propagation of sleeping from first start.
2018-05-16 22:07:54 -04:00
Thomas Harte
4c49963988
Switches to proper handling of the motor control and write protection.
...
Per Understanding the Apple II the drive looks write protected while phase 1 is enabled.
2018-05-16 21:44:09 -04:00
Thomas Harte
ad9b0cd4e3
Eliminates all endashes.
2018-05-13 15:43:03 -04:00
Thomas Harte
5d6b5d9f10
Eliminates all emdashes in cross-platform code.
2018-05-13 15:34:31 -04:00
Thomas Harte
0b771ce61a
Removes all instances of the copyright symbol.
2018-05-13 15:19:52 -04:00
Thomas Harte
d703328114
Adds missing #include for memcpy.
2018-05-12 17:54:13 -04:00
Thomas Harte
bc464e247f
The 1540 and, by extension, the Vic-20 are now activity sources.
2018-05-11 22:24:33 -04:00
Thomas Harte
a43ca0db35
Makes the Apple II an activity source.
2018-05-10 22:17:13 -04:00
Thomas Harte
c3144382c5
Shuffles the Disk II ROM at load time into B.A.P. form.
...
Only if required. In order to support various potential forms of supplied ROM.
2018-05-09 22:03:59 -04:00
Thomas Harte
c3a2f7717b
Makes attempt to implement support for the Pravetz 8D + 8DOS.
...
i.e. the Disk II wired up to the Oric, with some ROM swaps.
2018-05-08 22:05:43 -04:00
Thomas Harte
f65c65569a
Makes disk head position explicitly something with sub-integral precision.
...
Also as a drive-by fix, corrects accidental assumption of 10 sectors for all MFMSectorDump descendants.
2018-05-06 23:17:36 -04:00
Thomas Harte
aacf26f05d
Removed logged comment.
2018-04-30 22:03:09 -04:00
Thomas Harte
10c0e687f5
Attempts to introduce sleeping for the Disk II.
2018-04-29 17:51:10 -04:00
Thomas Harte
41075356e2
Makes a first attempt at NIB support.
2018-04-26 22:49:07 -04:00
Thomas Harte
d59db504a3
Adjusted stepper logic; some disks load now.
2018-04-25 21:59:18 -04:00
Thomas Harte
4c6dc597f4
Converts Time::get into a template, introduces a via-a-double fallback for the timed event loop.
2018-04-25 19:54:39 -04:00
Thomas Harte
7061537ff5
Makes joined-up attempt to run data through the Disk II.
2018-04-24 19:44:45 -07:00
Thomas Harte
99de8f1c5c
Inverts the pulse strobe.
2018-04-24 09:03:03 -07:00
Thomas Harte
af61bbc3e2
Attempts actual performance of the state machine.
2018-04-24 08:29:05 -07:00
Thomas Harte
56d88f23ef
Teeters closer and closer to trying actually to run the Disk II state machine.
2018-04-23 22:29:36 -07:00
Thomas Harte
4bff44377a
Attempts to route Disk II requests to the thing itself.
2018-04-23 22:11:31 -07:00
Thomas Harte
e87a3cffd4
Merge branch 'master' into DiskII
2018-04-21 15:02:18 -07:00
Thomas Harte
5968c9a391
Corrects Apple II output audio.
2018-04-21 14:56:50 -07:00
Thomas Harte
72bc5f8d7b
Adds a class to contain the Disk II and begins Apple GCR conversion routines.
2018-04-21 14:33:42 -07:00
Thomas Harte
f22c23cb4c
Attempts to bring audio to the Apple II.
...
By factoring the audio toggle out from the MSX.
2018-04-17 22:28:13 -04:00
Thomas Harte
1c605d58e3
Removes the CRT requirement for an integral relationship between cycles and samples.
2018-04-16 20:00:56 -04:00
Thomas Harte
467cd5450f
Adjusts PAL Vic timing.
2018-04-12 21:12:09 -04:00
Thomas Harte
428b6145fa
Converts 6560 to more project normative templated form.
2018-04-11 22:00:42 -04:00
Thomas Harte
4c8a68c6a4
Implements late-0 with proper timing, and NTSC interlaced raster count timing.
2018-04-11 08:00:37 -04:00
Thomas Harte
0b4b6f4aec
Tweaks luminances and reintroduces late-to-zero line counts.
2018-04-10 23:05:18 -04:00
Thomas Harte
cf6f6c5c15
Eliminates the full_frame_counter_ and slightly tweaks NTSC raster timing.
2018-04-08 18:51:20 -04:00
Thomas Harte
f541986333
Switches to more normative preincrement.
2018-04-08 18:50:42 -04:00
Thomas Harte
1c5972f7b0
Ensures NTSC raster count rollover; previously it was positing a line '261' for half of '0'.
2018-04-08 16:18:41 -04:00
Thomas Harte
3e846f89a1
Introduces different clipping zones for NTSC and PAL output.
2018-04-05 21:25:19 -04:00
Thomas Harte
60c1da6a66
Causes the 6560 to obey set_sample_volume_range.
...
Thereby resolves a clipping issue.
2018-04-05 21:04:46 -04:00
Thomas Harte
0ee40e8556
Reintroduces 90% crop for VIC output.
2018-03-31 20:57:45 -04:00
Thomas Harte
912791d3d4
Causes the s-video path correctly to function.
2018-03-30 18:24:18 -04:00
Thomas Harte
163a61dd63
Corrects SVideo-as-composite output; the Atari and Vic-20 now both supply svideo.
2018-03-30 13:16:18 -04:00
Thomas Harte
33281b9d89
Introduces S-Video as a video signal type at the interface level.
2018-03-30 10:25:41 -04:00
Thomas Harte
e1aa3e5a7f
Imports chrominances from the TED documentation. They seem to apply to the VIC-I also.
2018-03-29 20:04:37 -04:00
Thomas Harte
3b26e0a7c5
Tweaks NTSC colour generation.
2018-03-26 21:22:06 -04:00
Thomas Harte
a776bec46a
Tweaks PAL colours for the 6560 to be closer to screenshots found online.
2018-03-26 19:02:16 -04:00
Thomas Harte
a301964bd0
Ensures all audio queues are fully merged before machine destruction.
...
Thereby avoids a race condition.
2018-03-22 21:59:19 -04:00
Thomas Harte
48737a32a7
Introduces formal setting of the output volume to SampleSource.
...
Previously every output device was making its own decision. Which is increasingly less sustainable due to the CompoundSource.
2018-03-09 13:23:18 -05:00
Thomas Harte
705d53cc21
Picks a phase for the TMS empirically.
2018-03-03 13:53:00 -05:00
Thomas Harte
3c5a8d9ff3
Adds Super Game Module support for the ColecoVision.
2018-03-03 13:08:33 -05:00
Thomas Harte
ea13c7dd32
Implements multicolour mode on the TMS.
2018-03-02 23:08:01 -05:00
Thomas Harte
86239469e7
Allows SN76489 consumers to apply an additional divider that reduces computation.
2018-03-01 18:51:05 -05:00
Thomas Harte
7890506b16
Gives the SN76489 its proper dividers and personalities.
2018-02-28 22:36:03 -05:00
Thomas Harte
5b854d51e7
Corrects out-of-bounds access.
2018-02-27 22:45:45 -05:00
Thomas Harte
d4df101ab6
Makes a first attempt at implementing the SN76489.
2018-02-27 22:25:12 -05:00
Thomas Harte
0ad2676640
Adds a class for the SN76489 and wires it into the ColecoVision.
2018-02-26 22:04:34 -05:00
Thomas Harte
cabad6fc05
Optimises the inner TMS loops slightly.
2018-02-21 21:29:17 -05:00
Thomas Harte
2fe0ceb52a
Sets TMS input gamma.
2018-01-13 22:19:41 -05:00
Thomas Harte
2f59226300
Fixes: DiskROM drive motor control, track_for_sectors' sides.
2018-01-07 20:02:40 -05:00
Thomas Harte
793ef68206
Implements unconditional force interrupt for the WD.
2018-01-07 19:42:38 -05:00
Thomas Harte
2ffde4c3c2
Corrects SCC volume errors.
...
Which were leading to substantial overflow.
2018-01-07 09:59:00 -05:00
Thomas Harte
57ddfcd645
Corrects AY counter type.
2018-01-06 23:16:01 -05:00
Thomas Harte
fc16e8eb8c
Makes first attempt at actually implementing the SCC.
2018-01-06 23:15:42 -05:00
Thomas Harte
655b971976
Establishes that there is such as a thing as a Konami SCC.
...
Creates one, ensures it appears in memory when intended to, lets it handle reads and writes. It currently does nothing.
2018-01-06 20:15:55 -05:00
Thomas Harte
bcc7ad0c30
Corrects bad TMS sprite selections on the top row of the screen.
2018-01-06 16:26:11 -05:00
Thomas Harte
2dc1d4443e
Separates LowpassFilter and SampleSource.
2017-12-18 21:39:23 -05:00
Thomas Harte
f8a2459c91
Corrects two lingering adaptation errors in the Vic-20.
2017-12-17 21:43:08 -05:00
Thomas Harte
ac80d10cd8
Separates the component parts of running an audio stream: task deferral, filtering and generation.
...
Walking towards improving opportunities for composition.
2017-12-17 21:26:06 -05:00
Thomas Harte
ec4c259695
Removes unused file.
2017-12-14 21:19:09 -05:00
Thomas Harte
ad50b6b1fb
Corrects TMS' get_time_until_interrupt when the next interrupt is exactly a frame away.
2017-12-14 21:12:51 -05:00
Thomas Harte
3da323c657
Corrects lingering free TMS read.
2017-12-14 20:30:56 -05:00
Thomas Harte
aca7842ca4
Better documents and tidies the TMS9918.
2017-12-14 20:27:26 -05:00
Thomas Harte
c36de4f640
Attempts real VRAM access timings, correcting a frame timing error as I go.
2017-12-13 22:37:27 -05:00
Thomas Harte
5d0c33d545
Corrects occasional TMS sprite glitching.
2017-12-12 22:19:33 -05:00
Thomas Harte
b0616ee10c
Adds one-before-the-graphics as a line for video collection.
...
Thereby corrects sprites on line 0.
2017-12-12 21:35:33 -05:00
Thomas Harte
798cdba979
8255: update_outputs now affects only those ports designated as outputs.
2017-12-10 17:55:37 -05:00
Thomas Harte
f957344ac4
Corrects TMS failure to show background through tile layer.
2017-12-09 23:15:04 -05:00
Thomas Harte
b3fbd0f352
Tidies up some of the TMS' magic constants.
2017-12-09 23:08:07 -05:00
Thomas Harte
042edc72f7
Adjusts TMS declared timing so as to be in-phase with an NTSC clock, and adopts an alternative palette.
2017-12-09 22:28:34 -05:00
Thomas Harte
943418c434
Reformulates TMS sprite plotting to set the collision flag and to support magnified sprites.
2017-12-09 20:30:12 -05:00
Thomas Harte
7d7e2538bd
Introduces a computationally simplified inner loop for TMS graphics modes, modelled on that for text.
2017-12-09 16:02:33 -05:00
Thomas Harte
7a544731e2
Makes minor tidiness improvements to the TMS.
2017-12-08 22:20:21 -05:00
Thomas Harte
e1914b4f16
Attempts to add a proper intermediate buffer for sprites to allow the split of collection and output.
2017-12-08 22:12:39 -05:00
Thomas Harte
8653eb8b55
Corrects various latent errors in optimised TMS video collection.
2017-12-06 20:24:29 -05:00
Thomas Harte
a4f0a260fd
Reformulates the TMS graphics mode fetch loop to try to eliminate heavy conditionality. Temporarily introduces some sprite selection issues.
2017-12-05 22:39:03 -05:00
Thomas Harte
d4a53e82bb
Replaces manual retread of memcpy with standard memcpy.
2017-12-05 18:21:34 -05:00
Thomas Harte
6eedc99286
Makes substantial optimisations to text mode.
...
Character optimisations to come.
2017-12-04 22:18:51 -05:00
Thomas Harte
a473338abe
Makes minor type conversion fixes.
2017-12-03 22:24:48 -05:00
Thomas Harte
ad3df36c20
Corrects sprite information collection to cover all four.
2017-12-03 14:51:55 -05:00
Thomas Harte
38b11893e8
Takes first steps towards sprite display on the TMS.
2017-12-02 22:13:43 -05:00
Thomas Harte
e4534775b0
Cleans up and zooms in on the TMS slightly.
2017-12-02 17:48:31 -05:00
Thomas Harte
fe0cdc8d69
Corrects colour fetching in TMS Graphics II to be a function of row.
2017-12-02 16:10:29 -05:00
Thomas Harte
ca26ce8400
Slightly corrects style errors in the Cartridge hierarchy, and introduces mapping of .ROM to the MSX when appropriate.
2017-12-02 16:01:30 -05:00
Thomas Harte
d3dd8f3f2a
Implements screen 2 addressing.
2017-12-02 14:05:52 -05:00
Thomas Harte
3c8d2d579d
Resolves remaining sources of text mode instability.
2017-11-30 22:48:07 -05:00
Thomas Harte
edcbb3dfed
Tidies code a little and thereby uncovers and corrects one cause of output instability.
2017-11-30 22:19:53 -05:00
Thomas Harte
9c8158753e
Makes a first attempt at displaying text mode.
2017-11-30 21:35:26 -05:00
Thomas Harte
ee84f33ab5
Ensures that the 9918 admits that it is the source of interrupts.
2017-11-29 21:33:43 -05:00
Thomas Harte
aa4eef41d8
Seeks to introduce MSX interrupts.
2017-11-29 20:31:55 -05:00
Thomas Harte
ecd7d4731b
Advances emulation to showing what looks like appropriate text on screen.
2017-11-28 21:27:15 -05:00
Thomas Harte
563aa051e4
Simplifies code a little and gives something on screen.
2017-11-28 21:19:28 -05:00
Thomas Harte
642bb8333f
Introduces something of a first attempt at graphics collection and display. An unsuccessful attempt.
2017-11-28 21:10:30 -05:00
Thomas Harte
c558e86e03
Adds border colour output.
2017-11-27 22:05:40 -05:00
Thomas Harte
dbb14ea2e2
Corrects counting deficiencies that could produce an unstable display.
2017-11-27 21:36:12 -05:00
Thomas Harte
173e16b107
Corrects the 9918 so that it terminates.
2017-11-27 19:48:04 -05:00
Thomas Harte
7d2adad67e
Adds the absolute most basic version of in-frame time keeping, to display a white square.
2017-11-27 19:43:33 -05:00
Thomas Harte
d33612def5
Ensures the MSX provides a clock to the VDP.
2017-11-26 20:07:30 -05:00
Thomas Harte
9cb6ca3440
Adds elementary decoding of VDP accesses.
2017-11-26 20:01:11 -05:00
Thomas Harte
0eb5dd9688
Introduces the fundamentals of bus routing for the MSX.
2017-11-26 16:47:59 -05:00
Thomas Harte
a14b53a9ab
Adds a TMS9918 skeleton plus enough in the MSX to get to a blank screen in SDL/kiosk mode.
2017-11-26 13:28:26 -05:00
Thomas Harte
c827d14d97
Corrects various GCC warnings across the 6560, CPC, TIA, Oric video and elsewhere.
2017-11-12 17:17:27 -05:00
Thomas Harte
5408efe9b5
Flags obvious default options within the 6560, Vic-20 and DynamicMachine.
2017-11-12 16:41:09 -05:00
Thomas Harte
6d80856f02
Attempts to eliminate warnings around a meaningless value and an unused label in the 8272.
2017-11-12 16:34:51 -05:00
Thomas Harte
4778616fd7
Eliminates unused result and unused label.
2017-11-12 16:30:23 -05:00
Thomas Harte
5aef81cf24
Commutes cross-platform #pragma marks to //MARK:s.
2017-11-12 15:59:11 -05:00
Thomas Harte
2e15fab651
Doubles down on <cX> over <X.h> for C includes, and usage of the namespace for those types and functions.
2017-11-11 15:28:40 -05:00
Thomas Harte
5b6ea35d96
Corrects initialisation ordering for the ZX80/81, C1540 and AY-3-8910.
2017-11-10 22:31:27 -05:00
Thomas Harte
4cbc87a17d
Corrects out-of-order initialisations for the 1770, Atari 2600 joystick, Pitfall II bus extender, Microdisc and 6502.
2017-11-10 22:20:44 -05:00
Thomas Harte
ff7ba526fb
Corrects improper initialisation order on the 6560.
2017-11-10 22:05:35 -05:00
Thomas Harte
cb015c83e1
Eliminated C99-style struct initialisations.
2017-11-10 19:14:19 -05:00
Thomas Harte
c0055a5a5f
Further builds up SConstruct, correcting many missed imports and a couple of improper uses of C99 in C++ code.
2017-11-09 22:04:49 -05:00
Thomas Harte
f95515ae81
Eliminates a large number of instance of end-of-line tabs.
2017-11-07 22:51:06 -05:00
Thomas Harte
ad9df4bb90
Commutes uint8_t *, uint16_t *, uint32_t *, size_t, off_t and long to functional-style casts.
2017-10-21 22:30:15 -04:00
Thomas Harte
ec999446e8
Commutes int and unsigned casts to the functional style.
2017-10-21 21:00:40 -04:00
Thomas Harte
5e3e91373a
Switches all unsigned int and double casts to functional style.
2017-10-21 19:49:04 -04:00
Thomas Harte
91b867a7b3
Ensures full 8272 instance state initialisation.
2017-10-17 22:11:01 -04:00
Thomas Harte
3944e734d3
Ensures full 6845 instance state initialisation and uses an unsigned shifter.
2017-10-17 22:10:28 -04:00
Thomas Harte
97a2be71e3
Introduces flush_tracks to Drive, while switching its interface to using Track::Address and adjusting associated integer types.
2017-10-06 21:45:12 -04:00
Thomas Harte
edb9fd301c
Begins this project's conversion to functional-style casts.
2017-10-03 22:04:15 -04:00
Thomas Harte
c7f27b2db4
Renames MFM.[c/h]pp as per its new remit: encoding only.
2017-09-24 21:40:43 -04:00
Thomas Harte
2a08bd9ecc
Factors shifting plus stateful [M]FM token recognition out of the MFMDiskController.
...
Given the proliferation of MFM-related classes, establishes a subdirectory for them.
2017-09-24 20:07:56 -04:00
