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Author SHA1 Message Date
Thomas Harte
42bfabbe8c The implication seems to be of a fixed phase swing. 
I'm enquiring further.
 2021-03-20 23:46:13 -04:00
Thomas Harte
986c4006a6 Corrected: PAL machines can now be overt in terms of odd/even colour burst. 2021-03-20 23:45:49 -04:00
Thomas Harte
07a63d62dd Adds some quick arithmetic on the clock speed. 2021-03-20 11:19:44 -04:00
Thomas Harte
26911a16e8 Lengthens sync, better to conform to PAL; experiments with fixed-phase colour burst. 
I need to get hold of real documentation here.
 2021-03-20 10:38:21 -04:00
Thomas Harte
cf9a5d595b Completes piping of audio. 2021-03-19 23:33:46 -04:00
Thomas Harte
09a6a1905b Implements TAP support. 2021-03-19 23:29:09 -04:00
Thomas Harte
2ad2b4384b Introduces a container for ZX Spectrum-style TAPs. 2021-03-19 23:01:49 -04:00
Thomas Harte
7729f1f3d0 Attempts automatic Spectrum tape control. 2021-03-19 22:43:48 -04:00
Thomas Harte
7d59ff6d8f Builds in a colour burst, producing colour composite. 2021-03-19 22:25:37 -04:00
Thomas Harte
2ee478b4c4 Goes some way towards wiring up Spectrum options. 2021-03-19 22:17:20 -04:00
Thomas Harte
bb0d35e3d0 Minor formatting/layout fixes. 2021-03-19 22:17:03 -04:00
Thomas Harte
84774a7910 Update Qt and SDL build files. 2021-03-19 11:19:10 -04:00
Thomas Harte
a482ce1546 Adds a tape player. 2021-03-19 11:12:50 -04:00
Thomas Harte
a35e1f4fbe Starts to make formal Spectrum accommodations. 2021-03-19 11:06:09 -04:00
Thomas Harte
2371048ad1 Formally separates keyboard code. 
With an eye to formalising the Spectrum/ZX81/ZX80 differences.
 2021-03-19 10:36:08 -04:00
Thomas Harte
93b9ea67e6 Takes a run at contended timings. 2021-03-19 08:49:56 -04:00
Thomas Harte
f8c9ef2950 Add necessary header for memset. 2021-03-19 00:00:59 -04:00
Thomas Harte
69ca2e8803 Update Xcode project. 2021-03-18 23:52:35 -04:00
Thomas Harte
87fac15cc4 This is going to remain purely a template; no .cpp. 2021-03-18 23:51:45 -04:00
Thomas Harte
2d51924a3c Wires up Spectrum keyboard. 
The machine now appears to be fully interactive and functional. Timing and media aside, that is.
 2021-03-18 23:51:21 -04:00
Thomas Harte
c3d96b30d7 Factors out a little of the ZX81's keyboard logic. 2021-03-18 23:45:57 -04:00
Thomas Harte
44240773ef Corrects address generation, ink/paper selection. 
Seemingly to give a correct +2a boot. Time to add a keyboard and find out, I guess.
 2021-03-18 23:30:48 -04:00
Thomas Harte
ed587a4db5 Provides a better no-port-here value. 2021-03-18 23:14:39 -04:00
Thomas Harte
020a04006e Adds flashing, randomises initial RAM contents. 2021-03-18 23:07:51 -04:00
Thomas Harte
622a8abf7f Takes a stab at pixel output. 2021-03-18 22:57:10 -04:00
Thomas Harte
871bac6c8a Marks out and approximately centres a pixel region. 2021-03-18 22:41:20 -04:00
Thomas Harte
fe3e8f87e7 Takes a shot at an all-border output. 2021-03-18 22:29:24 -04:00
Thomas Harte
87fc7c02e8 Provides a base pointer for video output. 2021-03-18 22:04:41 -04:00
Thomas Harte
f2620e6afb Adds a CRT. Not yet clocked. 2021-03-18 21:54:42 -04:00
Thomas Harte
ab2ad70885 Takes a run at interrupts. 2021-03-18 21:29:52 -04:00
Thomas Harte
135134acfd Adds a shell for video emulation. 2021-03-18 12:47:48 -04:00
Thomas Harte
5664e81d48 It appears the +2a and +3 have a different clock rate. 2021-03-18 12:41:24 -04:00
Thomas Harte
c353923557 This can be constexpr. 2021-03-18 12:40:59 -04:00
Thomas Harte
b830d62850 Adds quick notes on port FE. 2021-03-18 12:32:54 -04:00
Thomas Harte
17f551e89d Attempts a full audio wiring. 2021-03-18 12:23:54 -04:00
Thomas Harte
4a4da90d56 Implements some of the memory map, and instantiates audio objects. 2021-03-18 12:14:48 -04:00
Thomas Harte
404c1f06e6 Insert missing space. 2021-03-18 10:44:01 -04:00
Thomas Harte
730bfcd1fd Stumbles towards a memory map. 2021-03-18 10:43:51 -04:00
Thomas Harte
97249b0edd Slow walks further towards a functioning Spectrum. 2021-03-18 10:18:17 -04:00
Thomas Harte
5a1bda1d82 Performs boilerplate towards a ZX Spectrum class. 2021-03-17 23:38:55 -04:00
Thomas Harte
b7d6b8efcf Fix Xcode project. 2021-03-17 23:27:34 -04:00
Thomas Harte
9bec91c2b9 Correct further namespace references. 2021-03-17 22:56:03 -04:00
Thomas Harte
3d1775d853 Correct namespace. 2021-03-17 22:52:23 -04:00
Thomas Harte
814c057570 Update further path references. 2021-03-17 22:46:25 -04:00
Thomas Harte
b63ca16ce2 Attempts to hatch a Sinclair namespace. 2021-03-17 22:40:29 -04:00
Thomas Harte
0ddf09ac0f Adds the +2a/+3 ROM. 2021-03-17 22:16:57 -04:00
Thomas Harte
e53586df1d Adds tape-file static analysis for a hypothetical ZX Spectrum. 2021-03-17 22:09:44 -04:00
Thomas Harte
54491b35ef Merge branch 'master' into ZXSpectrum 2021-03-17 12:39:20 -04:00
Thomas Harte
b447f5f174 Starts adding the Spectrum to the static analyser. 2021-03-17 12:38:37 -04:00
Thomas Harte
39a105b48a
Merge pull request #879 from TomHarte/CPCTapes 
Slightly Improves CPC tape loading times
 2021-03-16 22:09:15 -04:00