The SpritesB class has functions identical to those in Sprites.
When used in place of Sprites it will usually reduce code size (at the
expense of slower execution speed). Code size reduction is accomplished
by factoring all draw modes into the same loop.
Modifications made to the Sprites class to create this class made by
@dxxb (Delio Brignoli).
Creation of the SpritesB class and documentation by
@MLXXXp (Scott Allen).
Also, bootLogoSpritesBSelfMasked() and bootLogoSpritesBOverwrite()
alternative boot logo functions added by @MLXXXp.
Sometimes the compiler would assign r28/29 to one of our input
variables despite our needing to use that register ourselves. This
fix attempts to prevent that from happening and also cleans up a
few other small details.
- remove unnecessary y_count (-1 register)
- set buffer_ofs_2 inside assembly (-1 register)
- require inputs/outputs to use lower or simple upper registers
- declare a high register clobber
This seems to have the side effect of freeing up a high register and
preventing the error:
"can't find a register in class 'LD_REGS' while reloading 'asm'""
When sRow == -1 drawPlusMask can cause buffer underflow if it's
interrupted by an interrupt that changes memory that it's in the middle
of writing. Of course it shouldn't be writing to this memory at all.
This fixes the issue.
The Sprites class has been given direct access to the screen buffer so it
doesn't need a pointer to been given to it.
Also updated README.md and keywords.txt, and made minor indent changes in
the .h files.
- Version changed to 2.1.0
- Added sprite, button and collision functions from ArduboyExtra
- Added drawCompressed() function from Arglib
- Updated LICENSE.txt
- Removed CONTRIBUTORS.md (now covered by LICENSE.txt)
Dan O'Shea
Delio Brignoli
Scott Allen
Josh Goebel