syntax_data: {"ast_node_type":"other","tokens":[{"end":56,"kind":"keyword","start":0,"text":"r25:"}]}
source_snippet:         r25: reg = ["r25","t9"],// feature high-register
context_before:         r24: reg = ["r24","t8"],// feature high-register
context_after:         f0: freg = ["fr0","vr0"],