u16g_sub         3812 ext/uvector/uvector.c                 r = u16g_sub(v0, v1, clamp);
u16g_sub         3827 ext/uvector/uvector.c                 r = u16g_sub(v0, v1, clamp);
u16g_sub         3841 ext/uvector/uvector.c                 r = u16g_sub(v0, v1, clamp);