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cc65/libsrc/joystick
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_count.s Removed (pretty inconsistently used) tab chars from source code base. 2013-05-09 13:57:12 +02:00
joy_load.s Rewrote the xxx_load routines for the drivers in assembler to save some 2006-06-05 16:59:29 +00:00
joy_read.s Removed (pretty inconsistently used) tab chars from source code base. 2013-05-09 13:57:12 +02:00
joy_unload.s Removed (pretty inconsistently used) tab chars from source code base. 2013-05-09 13:57:12 +02:00
joy-kernel.s Removed joy_masks array. 2017-08-19 19:11:28 +02:00