5 Commits

Author	SHA1	Message	Date
pjgat09	b9a791ab30	Atari 2600: Added support to read UDLR from controller ... M6532: Gives controller data to game program TIA: Fixed player reflecting error	2012-03-12 21:16:38 +00:00
pjgat09	5e69d7503e	TIA: Added blanking when HMOVE occurs. ... Implemented playfield copying (fixes some Pacman display issues). Added a document which discusses the inner workings of the TIA on a circuit level. M6532: Added stubs for several registers, and changed the returns for some. Pitfall's first screen now renders correctly, and the copyright message scrolls.	2012-03-12 18:44:29 +00:00
pjgat09	84a11eacdf	Switched over to using the 6507 to allow for some modifications to the CPU ... MOS6507: now executes instructions on the last cycle. This corrects a syncing issue with the TIA TIA: added ball data, partially implemented HMOVE, implemented VBLANK	2012-03-11 03:22:44 +00:00
pjgat09	781ab15e1e	Partially implemented the M6532's timer capabilities ... Sketchy implementation of the TIA. But hey, it kind of renders pitfall!	2012-03-10 00:26:54 +00:00
pjgat09	405af35d72	Started work on Atari 2600 core. Added stubs for the TIA and M6532 to be filled in later. Memory map is hard coded, but will only work for basic 4K carts like pitfall. That'll have to be changed later.	2012-03-08 08:12:44 +00:00