pb_7f              37 libavcodec/huffyuvdsp.c         *(long *) (dst + i) = ((a & pb_7f) + (b & pb_7f)) ^ ((a ^ b) & pb_80);
pb_7f              49 libavcodec/huffyuvencdsp.c         *(long *) (dst + i) = ((a | pb_80) - (b & pb_7f)) ^
pb_7f              37 libavcodec/pngdsp.c         *(long *)(dst + i) = ((a & pb_7f) + (b & pb_7f)) ^ ((a ^ b) & pb_80);