tmp variables can be flagged as output only

- this saves a few bytes
2017-04-21 20:11:18 -04:00 · 2017-04-21 20:11:18 -04:00 · 5fe9488b10
parent ceef595357
commit 5fe9488b10
1 changed files with 3 additions and 3 deletions
--- a/src/Sprites.cpp
+++ b/src/Sprites.cpp
@ -334,9 +334,9 @@ void Sprites::drawBitmap(int16_t x, int16_t y,
        : [xi] "+&r" (xi),
        [yi] "+&r" (yi),
        [sRow] "+&d" (sRow), // CPI requires an upper register
-        [data] "+&r" (data),
-        [mask_data] "+&r" (mask_data),
-        [bitmap_data] "+&r" (bitmap_data)
+        [data] "=&r" (data),
+        [mask_data] "=&r" (mask_data),
+        [bitmap_data] "=&r" (bitmap_data)
        :
        [x_count] "r" (rendered_width),
        [y_count] "r" (loop_h),