75 Commits

Author	SHA1	Message	Date
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	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