I'm finding this sequence multiple times; part of it or exactly this keeps on appearing in my compiler's output. I think it's performing a modulo by the Q16+8 value 10.0, then converting the number to ASCII then printing it. Part of the Q16+8 decimal print function, I think.
(Also - 0x30 is ASCII '0', not 'H')
#assembly
It is too late. Off to some sleep ๐