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Commit Graph

215 Commits

Author SHA1 Message Date
Thomas Harte
3ae699964f Ensured an actual pixel stream is supplied for pixel regions. Though it's just a long stream of white pixels for now. So visual output is unchanged. 2017-08-01 07:24:29 -04:00
Thomas Harte
42dd27c9b1 Shunted method bodies inline, given that there's no need for a declaration/definition distinction. 2017-07-31 22:39:25 -04:00
Thomas Harte
3df13cddd4 As per my keenness for cleanliness improvements corresponding to my ever-increasing C++ ability: turned the Amstrad into something that a factory produces, allowing me completely to hide a bunch of implementation details. 2017-07-31 22:32:04 -04:00
Thomas Harte
c2253c1e0f Fixed multiplier: the dot clock I've used to instantiate the CRT is the pixel clock, not the character clock. 2017-07-31 22:17:46 -04:00
Thomas Harte
f742fd5d4a Made basic attempt to get something on screen: white where the display is enabled, black for the border. 2017-07-31 22:13:20 -04:00
Thomas Harte
69b99fe127 Transferred ownership of the CRT to the CRTC bus handler, to give it easy access. 2017-07-31 22:04:52 -04:00
Thomas Harte
e28829bd1b Corrected CRTC timing, gave it someone to talk to and a means with which to talk. 2017-07-31 20:14:46 -04:00
Thomas Harte
68ceeab610 Created a 6845 class and started pushing data at it and clocking it. It doesn't currently have the concept of a bus but will do, hence the in-header implementation. 2017-07-31 19:56:59 -04:00
Thomas Harte
68dca9d047 Made a first attempt at ROM paging, with pretty much the same scheme that'll be needed for 128kb support. 2017-07-31 19:37:28 -04:00
Thomas Harte
d88ca151f4 Added a first attempt at output port decoding. Just logging for now. 2017-07-31 19:25:10 -04:00
Thomas Harte
3c90218c3d With a very basic stab at something a bit like the memory map (sans paging), execution begins. 2017-07-31 19:15:43 -04:00
Thomas Harte
afd409c883 Ensured that ROM images are loaded and passed to the Amstrad CPC. 2017-07-31 18:44:49 -04:00
Thomas Harte
9c04d851e4 Added the basics necessary to get the CPU ticking over, at a nominal 4Mhz but with the wait states that I currently believe to be accurate. 2017-07-31 07:29:50 -04:00
Thomas Harte
1d6fe11906 Added an instance of Outputs::CRT::CRT. So progress is now: select CDT, up comes a blank window. 2017-07-31 07:16:51 -04:00
Thomas Harte
c0f1313830 Performed sufficient wiring to get to the point where attempting to load a CDT creates an instance of the Amstrad CPC and then fails only because the thing vends a nullptr CRT. 2017-07-30 22:05:29 -04:00