4 Commits

Author	SHA1	Message	Date
Bill Kendrick	af8eb57f63	Atari colors into _gtia.h; NMIRES/NMIST as union ... Use a C "union" to give both read (NMIST) and write (NMIRES) labels to their shared register in ANTIC. (h/t @groessler). Consolodate duplicated color definitions (HUE_..., COLOR_... and TGI_COLOR_...; and the "_gtia_mkcolor()" macro), found in both "atari.h" and "atari5200.h", moving it to "_gtia.h", which they both share (and which makes the most sense).	2019-01-17 22:44:25 -08:00
Oliver Schmidt	7f52a770d9	Removed joy_masks array. ... So far the joy_masks array allowed several joystick drivers for a single target to each have different joy_read return values. However this meant that every call to joy_read implied an additional joy_masks lookup to post-process the return value. Given that almost all targets only come with a single joystick driver this seems an inappropriate overhead. Therefore now the target header files contain constants matching the return value of the joy_read of the joystick driver(s) on that target. If there indeed are several joystick drivers for a single target they must agree on a common return value for joy_read. In some cases this was alredy the case as there's a "natural" return value for joy_read. However a few joystick drivers need to be adjusted. This may cause some overhead inside the driver. But that is for sure smaller than the overhead introduced by the joy_masks lookup before. !!! ToDo !!! The following three joystick drivers become broken with this commit and need to be adjusted: - atrmj8.s - c64-numpad.s - vic20-stdjoy.s	2017-08-19 19:11:28 +02:00
Christian Groessler	3508b90ee8	set DYN_DRV to 0; define atr5200std_joy	2014-05-31 19:44:10 +02:00
Christian Groessler	ff31fa3e3f	add atari5200.h	2014-05-29 00:42:54 +02:00