Thomas Harte
be01203cc1
Starts to expand the range of supported 6502s.
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This fully implements the NES 6502 because, well, it's virtually no extra work, and ensures that RDY takes effect on write cycles on 65C02s.
2018-08-13 22:17:22 -04:00
Thomas Harte
cb47575860
Eliminates stdout chatter.
2018-08-11 22:57:54 -04:00
Thomas Harte
434d184503
Corrects deserialisation order in double low res mode.
2018-08-11 22:53:06 -04:00
Thomas Harte
7374c665e8
Corrects regression in video flushing.
2018-08-11 19:57:39 -04:00
Thomas Harte
60ab6f0c2a
Entrusts IIe-esque character logic fully to the ROM.
2018-08-11 18:45:39 -04:00
Thomas Harte
a13eb351da
Implements the Enhanced IIe, other than some text selection errors.
2018-08-11 10:26:30 -04:00
Thomas Harte
76a73c835c
Forces 6502 consumers to declare which model — the original, 65C02 or 65SC02.
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All present machines use a regular 6502.
2018-08-06 20:06:07 -04:00
Thomas Harte
de68e70246
Fixes various IIe video deficiencies.
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Specifically:
* the double-high resolution switches should be read/write; and
* the other IIe-specific switches should cause a video update for real-time effect.
2018-08-05 17:47:23 -04:00
Thomas Harte
ce14cc8677
Flips meaning of analogue input bits, correcting most joystick titles.
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Mysteriously, some functioned correctly before this. But they continue to do so.
2018-08-05 17:36:01 -04:00
Thomas Harte
55f2fccf5e
Extends correct text handling to 80-column mode.
2018-08-04 22:25:29 -04:00
Thomas Harte
26624d7652
Fixes vertical blank signal; it should be the other way around.
2018-08-04 20:57:02 -04:00
Thomas Harte
85fb4773b0
Tweaks Apple key mapping and implements reset_all_keys.
2018-08-04 20:31:37 -04:00
Thomas Harte
099d66804e
Makes colour burst phase explicit.
2018-08-04 19:29:34 -04:00
Thomas Harte
086596c28e
Adds reading of vertical blank and implements the full IIe keyboard logic.
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i.e. there are now two Apple keys, and shift isn't assumed.
2018-08-04 19:17:04 -04:00
Thomas Harte
3aeb4213fe
Implements the C010 read value.
2018-08-04 17:57:02 -04:00
Thomas Harte
558b96bc05
Corrects IIe text display.
2018-08-04 16:52:29 -04:00
Thomas Harte
e97cc40a2c
Corrects typo in Cx-page ROM paging.
2018-08-04 12:44:58 -04:00
Thomas Harte
c4f86cc324
The Disk II now being its proper speed, withdraws the quickload option.
2018-08-03 21:20:21 -04:00
Thomas Harte
74a2f717b3
Turns down the composite signal amplitude a little, to help colour distinctness.
2018-08-01 18:52:42 -04:00
Thomas Harte
c91eaaf8da
Takes a stab at double low-res graphics.
2018-07-31 21:45:09 -04:00
Thomas Harte
a36f37d240
Introduces a 1/14th delay in output of double high res.
2018-07-31 21:29:51 -04:00
Thomas Harte
c773d3501a
Implements the INTC8ROM switch.
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Finally causing the Zellyn tests to pass! Is this nightmare behind me?
2018-07-31 19:00:46 -04:00
Thomas Harte
5810f9b3f9
Fixes high resolution address range and switching logic.
2018-07-30 23:23:18 -04:00
Thomas Harte
3f56683342
Fixes order of deserialisation between auxiliary and base RAM.
2018-07-30 23:08:45 -04:00
Thomas Harte
16ccbdefd6
Of course, | has higher precedence than ?. Classic!
2018-07-30 23:08:22 -04:00
Thomas Harte
e9aaa5bbdf
Factors out the page-mapping function.
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For one less potential source of failure.
2018-07-30 22:23:48 -04:00
Thomas Harte
ecb26e3281
Corrections: slot_C3_rom_ works the other way around; 80STORE doesn't affect most of RAM but does always affect the text screen.
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Also factored out `set_zero_page_paging` for consistency.
2018-07-30 19:54:25 -04:00
Thomas Harte
5aa0b17720
Improves IIe paging further.
2018-07-29 23:02:27 -04:00
Thomas Harte
632b37ecec
Attempts an implementation of auxiliary memory.
2018-07-29 10:41:12 -04:00
Thomas Harte
c905de2e40
Restores IIe ROM-over-card paging.
2018-07-28 13:31:25 -04:00
Thomas Harte
bc2afe69e1
Accepting that memory mapping on a IIe is more complicated than I anticiapted, introduces mapping for all pages.
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Also picks a name for the Unenhanced Apple IIe ROM.
2018-07-28 13:02:49 -04:00
Thomas Harte
894998b163
Merge branch 'master' into IIe
2018-07-28 10:54:04 -04:00
Thomas Harte
3c33ccd730
Eliminates various blank lines.
2018-07-28 10:52:34 -04:00
Thomas Harte
5f2b9b2d5a
Implements the alternative zero page soft switch.
2018-07-25 22:10:21 -04:00
Thomas Harte
5c4506a9db
Talks the IIe into proceeding to a beep and an improperly-formed logo.
2018-07-25 21:43:12 -04:00
Thomas Harte
55a6431fb3
Puts in enough logic to be able to launch a non-functional IIe.
2018-07-25 18:58:34 -04:00
Thomas Harte
ede2696a77
Edges further towards implementing the IIe video subsystem.
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All video-specific switches are in place, and mostly honoured, and a IIe machine configuration is advertised at least.
2018-07-24 22:15:42 -04:00
Thomas Harte
59b9e39022
Starts the process of supporting the Apple IIe graphics modes.
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Albeit that I'm not yet even up on the proper soft switches.
2018-07-23 22:14:41 -04:00
Thomas Harte
e339d169c5
Ensures the joystick doesn't obstruct tape input.
2018-07-12 22:10:05 -04:00
Thomas Harte
58484e8f37
Adds joystick support for the MSX.
2018-07-12 21:42:47 -04:00
Thomas Harte
8503589828
Corrects failure to retain OS.
2018-07-10 22:05:50 -04:00
Thomas Harte
efd812cf22
Ensures no buffer overrun when installing the OS ROM.
2018-07-10 21:54:36 -04:00
Thomas Harte
57f161e64c
Corrects documentation of the media target.
2018-07-10 21:42:09 -04:00
Thomas Harte
0897210969
Neither cartridge machine should be a media target; their media can't be changed at runtime.
2018-07-10 21:40:13 -04:00
Thomas Harte
7e58a44771
Renames ConfigurationTarget to MediaTarget as per its newly-reduced interface.
2018-07-10 21:32:28 -04:00
Thomas Harte
3862fdb44c
Simplifies initialisation procedure for all machines.
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With the side effect of allowing every machine to try to load only the ROMs that it needs.
2018-07-10 20:00:46 -04:00
Thomas Harte
c97c5fa03a
[Re-]recalibrates CRT retrace period and affected view windows.
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In the hope of moving the CPC closer to the real CTM visible area.
2018-07-05 22:07:18 -04:00
Thomas Harte
640a84d456
Shift the h-within-v pulse to eliminate a curved top line.
2018-06-24 11:27:18 -04:00
Thomas Harte
04f6cb1750
Merge branch 'master' into AppleIIEqualisation
2018-06-23 23:10:29 -04:00
Thomas Harte
a93f8103ad
Zooms out the CPC a little more.
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To fix the maximum amount of content that I can, at least for now.
2018-06-23 22:15:34 -04:00
