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cc65/libsrc/atari5200
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
..
joy Removed joy_masks array. 2017-08-19 19:11:28 +02:00
cartentry.s
cartname.s Use .macpack to include macro package. 2016-03-27 18:29:45 +02:00
cartyear.s don't use scrcode for numbers 2014-05-29 00:18:22 +02:00
cclear.s add some conio functions 2014-03-11 01:17:59 +01:00
chline.s add some conio functions 2014-03-11 01:17:59 +01:00
clock.s
clrscr.s clrscr for Atari 5200 default conio screen 2014-05-12 03:05:21 +02:00
conioscreen.s
cputc.s Introduced internal gotoxy that pops both parameters. 2016-06-05 14:58:38 +02:00
crt0.s Use AX paradigm for stack initalization. 2016-03-07 01:44:19 +01:00
ctype.s first changes for atari5200 target 2014-03-01 17:20:09 +01:00
cvline.s
get_tv.s add get_tv() 2014-03-04 16:02:24 +01:00
gotox.s some CONIO fixes 2014-05-16 02:10:19 +02:00
gotoxy.s Introduced internal gotoxy that pops both parameters. 2016-06-05 14:58:38 +02:00
gotoy.s add gotox, gotoy, and gotoxy 2014-03-13 02:38:35 +01:00
irq.s Renamed INITBSS to INIT and INIT to ONCE. 2016-03-06 21:27:19 +01:00
joy_stat_stddrv.s add joystick driver -- trigger buttons are not queried yet 2014-05-12 03:03:44 +02:00
libref.s add joystick driver -- trigger buttons are not queried yet 2014-05-12 03:03:44 +02:00
mul20.s
randomize.s first changes for atari5200 target 2014-03-01 17:20:09 +01:00
setcursor.s cleanups and add comments 2014-05-28 23:38:22 +02:00
sysuname.s
y2k.inc first changes for atari5200 target 2014-03-01 17:20:09 +01:00